CN106535347B - Uplink resource allocating method and device in voice service based on uplink scheduling request - Google Patents
Uplink resource allocating method and device in voice service based on uplink scheduling request Download PDFInfo
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- CN106535347B CN106535347B CN201510575776.0A CN201510575776A CN106535347B CN 106535347 B CN106535347 B CN 106535347B CN 201510575776 A CN201510575776 A CN 201510575776A CN 106535347 B CN106535347 B CN 106535347B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
- H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/52—Allocation or scheduling criteria for wireless resources based on load
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
- H04W28/14—Flow control between communication endpoints using intermediate storage
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Abstract
The embodiment of the invention provides uplink resource allocating methods and device based on uplink scheduling request SR in a kind of VoLTE voice service, wherein the described method includes: determining the status information of voice service；When detecting uplink scheduling request SR, coded format, IP characteristic informations and the IP agreement version information for formerly having uploaded VoP are extracted respectively；Using coded format, IP characteristic informations and IP agreement version information, determine when the secondary packet size information that need to upload VoP；According to IP characteristic informations, the packet size information and status information, the size for needing distributing buffer to occupy BO is determined；Determine modulation and coding strategy MCS grade；According to needing, distributing buffer occupies the size of BO and modulating need to distribute Physical Resource Block PRB number with coding strategy MCS grade, determination.The embodiment of the present invention can reduce time delay of the voice data from terminal to another.
Description
Technical field
The present invention relates to field of communication technology, more particularly to being based on uplink scheduling request in a kind of VoLTE voice service
A kind of ascending resource in the uplink resource allocating method of SR and VoLTE voice service based on uplink scheduling request SR distributes dress
It sets.
Background technique
In TD-LTE system, VoLTE (Voice overLTE) is the voice service based on IMS, whole service bearers
In on 4G network, it can be achieved that the unification of data and voice service under consolidated network, VoLTE voice service is relative to 2G, 3G language
Sound business has many advantages, such as that the connection waiting time is shorter, and higher quality, more natural voice and video telephone.
In existing way, VoLTE voice service usually uploads voice data in the following manner:
When terminal needs to upload voice data to base station, uplink scheduling request is sent from terminal to base station
(Scheduling Request, SR), base station is periodically detected SR, when detecting SR, then calls DCI0, by the tune for being fixed as 6
Make 4 Physical Resource Block (physical corresponding with coding strategy MCS grade (Modulation and Coding Scheme)
Resource block, PRB), buffer status reporting (Buffer Status Report, BSR) and low volume data are uploaded, due to
When MCS grade is 6,4 PRB can only upload the data of 392bit (i.e. 49byte), and the voice data for needing to upload is most
It is all greater than 49byte when number, thus, 4 PRB when MCS grade is 6 can not disposably upload the data for needing to upload
It finishes, the size for the voice data that base station will need to also be uploaded according to the BSR determination of upload, redefines MCS grade and distribution
PRB quantity, and DCI0 is called again, the remaining language for needing to upload is uploaded by the corresponding PRB quantity of the MCS grade redefined
Sound data.
During existing voice data upload, due to needing first to call DCI0, by fixed MCS grade corresponding 4
A PRB uploads BSR, after redefining MCS grade and PRB quantity by BSR, it is also necessary to call DCI0 could be on needs again
The voice data of biography all uploads, and increases so as to cause voice data from the time delay that a terminal reaches another terminal.
Summary of the invention
In view of the above problems, it proposes the embodiment of the present invention and overcomes the above problem or at least partly in order to provide one kind
Uplink resource allocating method in a kind of VoLTE voice service to solve the above problems based on uplink scheduling request SR and corresponding
Ascending resource distributor based on uplink scheduling request SR in a kind of VoLTE voice service.
To solve the above-mentioned problems, the embodiment of the invention discloses asked in a kind of VoLTE voice service based on uplink scheduling
Seek the uplink resource allocating method of SR, comprising:
Determine the status information of institute's voice traffic；
When detecting uplink scheduling request SR, coded format, the IP head for formerly having uploaded VoP are extracted respectively
Characteristic information and IP agreement version information；
Using the coded format, the IP characteristic information and the IP agreement version information, determine needs to upload when secondary
The packet size information of VoP；
According to the IP characteristic information, the packet size information and the status information, determination needs distributing buffer to occupy
The size of BO；
Determine modulation and coding strategy MCS grade；
It needs to distribute according to the size for needing distributing buffer to occupy BO and the modulation and coding strategy MCS grade, determination
PRB number of Physical Resource Block.
Preferably, the step of status information of determining institute's voice traffic includes:
Count the number of received VoP within a preset time；
If the number of the VoP is greater than first threshold, it is determined that the status information is state of activation；
If the number of the VoP is less than or equal to second threshold, it is determined that the status information is silent status,
Wherein, the first threshold is greater than the second threshold.
Preferably, the IP characteristic information is compressed IP head or non-compressed IP head, and the status information is state of activation
Or silent status, it is described to distribute slow according to the IP characteristic information, the packet size information and the status information, determination
Punching occupy BO size the step of include:
The sending cycle of VoP under the detection cycle and state of activation of uplink scheduling request SR is obtained respectively；
When the status information be state of activation when, determine need distributing buffer occupy BO size be K, K=N*T1/T2,
Wherein, N indicates the packet size information, T1Indicate the detection cycle of uplink scheduling request SR, T2Indicate voice number under state of activation
According to the sending cycle of packet, the value of T1/T2 rounds up；
When the status information is silent status, and the IP characteristic information is compressed IP head, determination need to distribute slow
The size that punching occupies BO is 15 bytes；
When the status information be silent status, and the IP characteristic information be not compressed IP head when, determine need to distribute
The size that buffering occupies BO is 72 bytes.
Preferably, it is described according to it is described need distributing buffer occupy BO size and it is described modulation with coding strategy MCS grade,
Determination need to distribute Physical Resource Block PRB it is several the step of include:
Based on the first default mapping relations, determining transmission block TBS corresponding with coding strategy MCS grade with the modulation
Grade；
Based on the second default mapping relations, Physical Resource Block corresponding with identified transmission block TBS grade is determined
The maximum carrying data volume of PRB number；
Maximum carrying data volume is more than or equal to, caching need to be distributed and occupy the size of BO Physical Resource Block PRB
Several minimum values is determined as to distribute Physical Resource Block PRB number.
The embodiment of the invention also discloses the ascending resources based on uplink scheduling request SR in a kind of VoLTE voice service point
With device, described device includes packet data convergence protocol PDCP and media access control layer MAC, the packet data convergence
Protocol layer PDCP includes status information determining module and has formerly uploaded the information extraction modules of VoP, and the media connect
Enter size determining module, modulation and coding plan that control layer MAC includes packet size information computing module, distributing buffer is needed to occupy BO
It omits MCS level determination module and Physical Resource Block PRB several determining modules need to be distributed, described device includes:
The status information determining module, the status information of voice traffic for determining；
It is described formerly to have uploaded the information extraction modules of VoP, for when detecting uplink scheduling request SR,
Coded format, IP characteristic informations and the IP agreement version information for formerly having uploaded VoP are extracted respectively；
The packet size information determining module, for using the coded format, the IP characteristic information and the IP
Protocol version information is determined when the secondary packet size information that need to upload VoP；
The size determining module for needing distributing buffer to occupy BO, for big according to the IP characteristic information, the packet
Small information and the status information determine the size for needing distributing buffer to occupy BO；
The modulation and coding strategy MCS level determination module, for determining modulation and coding strategy MCS grade；
It is described to distribute Physical Resource Block PRB several determining modules, for needing distributing buffer to occupy the big of BO according to described
The small and described modulation and coding strategy MCS grade, determination need to distribute Physical Resource Block PRB number.
Preferably, the status information determining module includes:
The number statistic submodule of VoP, for counting of received VoP within a preset time
Number；
State of activation determines submodule, when being greater than first threshold for the number in the VoP, it is determined that institute
Stating status information is state of activation；
Silent status determines submodule, when being less than or equal to second threshold for the number in the VoP, then really
The fixed status information is silent status, wherein the first threshold is greater than the second threshold.
Preferably, the IP characteristic information is compressed IP head or non-compressed IP head, and the status information is state of activation
Or silent status, the size determining module for needing distributing buffer to occupy BO include:
Period acquisition submodule, voice number under the detection cycle and state of activation for obtaining uplink scheduling request SR respectively
According to the sending cycle of packet；
First size for needing distributing buffer to occupy BO determines submodule, is used for when the status information is state of activation,
Determine that the size for needing distributing buffer to occupy BO is K, K=N*T1/T2, wherein N indicates the packet size information, T1Indicate uplink
The detection cycle of scheduling request SR, T2Indicate that the sending cycle of VoP under state of activation, the value of T1/T2 round up；
Second size for needing distributing buffer to occupy BO determines submodule, for being silent status when the status information, and
When the IP characteristic information is compressed IP head, determine that the size for needing distributing buffer to occupy BO is 15 bytes；
The size that third needs distributing buffer to occupy BO determines submodule, for being silent status when the status information, and
The IP characteristic information be not compressed IP head when, determine need distributing buffer occupy BO size be 72 bytes.
Preferably, described to distribute Physical Resource Block PRB several determining modules and include:
Transmission block TBS grade determines submodule, for being based on the first default mapping relations, the determining and described modulation and coding
The corresponding transmission block TBS grade of tactful MCS grade；
The maximum carrying data volume of PRB number of Physical Resource Block determines submodule, for being based on the second default mapping relations,
Determination is corresponding with identified transmission block TBS grade, the maximum carrying data volume of PRB number of Physical Resource Block；
Physical Resource Block PRB number need to be distributed and determine submodule, for maximum carrying data volume to be more than or equal to, the need
Distribution caching occupies the minimum value of the PRB number of Physical Resource Block of the size of BO, is determined as that Physical Resource Block PRB need to be distributed
Number.
The embodiment of the present invention includes following advantages:
The embodiment of the present invention can determine the status information of voice service, can be with when detecting uplink scheduling request SR
Coded format, IP characteristic informations and the IP agreement version information for formerly having uploaded VoP are extracted respectively, using described
Coded format, the IP characteristic information and the IP agreement version information are calculated when the secondary packet that need to upload VoP is big
Small information determines the size for needing distributing buffer to occupy BO according to IP characteristic informations, packet size information and status information, determines
Modulation and coding strategy MCS grade are determined according to the size and modulation and coding strategy MCS grade for needing distributing buffer occupancy BO
It need to distribute Physical Resource Block PRB number, since the embodiment of the present invention is when detecting uplink scheduling request SR, it can to determine and adjust
System with coding strategy MCS grade and it is corresponding need to distribute Physical Resource Block PRB number, PRB determining number can disposably by
It needs the VoP that uploads to upload when secondary, 4 PRB when being 6 is needed by MCS grade to upload BSR with respect to the background art,
For redefining MCS grade and the way of PRB number by BSR again, the embodiment of the present invention can reduce voice data from terminal
To the time delay of another terminal, user experience is promoted.
In addition, in the background technology, (4) upload BSR of fixation PRB and low volume data when be by MCS grade being 6,
In practical application, uploads BSR and low volume data does not need 4 PRB in most cases, be easy to cause PRB's in the case
Waste, and the embodiment of the present invention need to divide according to that need to distribute the size for caching occupancy BO and modulation and coding strategy MCS grade, determination
With PRB number of Physical Resource Block, also that is, the embodiment of the present invention based on upload in need voice data total size and modulation
With coding strategy MCS grade, determination need to distribute Physical Resource Block PRB number, and determining need distribute PRB number of Physical Resource Block,
It is to be enough to carry the minimum value when in PRB number of the secondary all VoPs for needing to upload, what the embodiment of the present invention determined
PRB number of Physical Resource Block need to be distributed actually and can just be carried and work as all VoPs that time needs upload, thus, phase
For the Physical Resource Block PRB of fixed number when background technique distribution MCS grade is 6, the embodiment of the present invention can be kept away
Exempt from the waste of the Physical Resource Block PRB of distribution, improves the utilization rate of Physical Resource Block PRB.
Detailed description of the invention
Fig. 1 is the uplink resource allocating method based on uplink scheduling request SR in a kind of VoLTE voice service of the invention
The step flow chart of embodiment；
Fig. 2 is the ascending resource distributor based on uplink scheduling request SR in a kind of VoLTE voice service of the invention
The structural block diagram of embodiment.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
One of the core concepts of the embodiments of the present invention is that the embodiment of the present invention can determine the state letter of voice service
Breath can extract the coded format for formerly having uploaded VoP, IP spies when detecting uplink scheduling request SR respectively
Reference breath and IP agreement version information, using the coded format, the IP characteristic information and the IP agreement version information,
It calculates when the secondary packet size information that need to upload VoP, according to IP characteristic informations, packet size information and status information, really
Surely it needs distributing buffer to occupy the size of BO, determines modulation and coding strategy MCS grade, according to the size for needing distributing buffer to occupy BO
With modulation and coding strategy MCS grade, determination need to distribute Physical Resource Block PRB number, since the embodiment of the present invention is detecting
When uplink scheduling request SR, it can determine modulation and coding strategy MCS grade and corresponding need to distribute Physical Resource Block PRB a
Number, determining PRB number can disposably will when the VoP upload that time needs upload, need with respect to the background art by
4 PRB when MCS grade is 6 upload BSR, then for redefining MCS grade and the way of PRB number by BSR, of the invention
Embodiment can reduce time delay of the voice data from terminal to another, promote user experience.
VoLTE voice service is to be carried on the voice service of 4G network, can be realized between different terminals by base station
Voice service, VoLTE have many advantages, such as that quality is high, it is short to connect the waiting time.
According to the different conditions of terminal room voice service, the status information of VoLTE voice service can be divided into two
Kind: one of which is, there are interactive voice between different terminals user, this state is state of activation, sends to terminal periodic
The VoP generated in user speech interactive process, the sending cycle of VoP are usually 20ms；Another kind is, no
With interactive voice is not present between terminal user, the SID data packet formed by background sound is only transmitted between different terminals
(Silence Insertion Descriptor, silence indicator), to maintain voice transfer, this state is silent status, is led to
Often, the sending cycle of SID data packet is 160ms under silent status.
When a terminal needs voice data being sent to another terminal, need that voice data is first uploaded to base
It stands, in the process, it is necessary first to which base station is that the voice data that need to be uploaded distributes corresponding ascending resource, the uplink money distributed
Source is usually Physical Resource Block PRB, and voice data is uploaded to base station by Physical Resource Block PRB.
Base station is generally divided into dynamic dispatching and semi-persistent scheduling to the scheduling mode of ascending resource, and semi-persistent scheduling only needs one
Secondary property specifies ascending resource, and dynamic dispatching is required to specified ascending resource, i.e. uplink when each VoP needs to upload
The specified or distribution of resource is dynamically that dynamic dispatching mode is more conducive to the reasonable distribution of resource.
Under dynamic dispatching mode, when terminal has voice data to need to upload, uplink scheduling request can be uploaded to base station
SR (Scheduling Request) is that voice data distributes ascending resource to request base station.
Different terminals all has the storage location of corresponding uplink scheduling request SR in a base station, when some terminal is to base
Stand upload uplink scheduling request SR when, the uplink scheduling request SR of upload can be stored in the uplink scheduling of the terminal in a base station and ask
It asks in the storage location of SR, base station can be known according to the storage location of uplink scheduling request SR uploads uplink scheduling request SR
Terminal.
Referring to Fig.1, the ascending resource based on uplink scheduling request SR in a kind of VoLTE voice service of the invention is shown
The step flow chart of distribution method embodiment, can specifically include following steps:
Step 101, the status information of institute's voice traffic is determined；
Packet data convergence protocol PDCP (Packet Data Convergence Protocol) is a wireless biography
Defeated protocol stack, it is responsible for IP compressions and decompression, transmits user data and safeguard as lossless any wireless network services subsystem
(SRNS) sequence number for the radio bearer being arranged.
In the concrete realization, the status information that voice service can be periodically determined by PDCP determines that voice service is place
It is in quiet period in the activation phase, determines that the period of status information can configure according to actual needs, in general, can be 160ms.
In one preferred embodiment of the invention, step 101 may include following sub-step:
Sub-step S11 counts the number of received VoP within a preset time；
Sub-step S12, if the number of the VoP is greater than first threshold, it is determined that the status information is activation
State；
Sub-step S13, if the number of the VoP is less than or equal to second threshold, it is determined that the status information is
Silent status.
PDCP can count the number of received VoP within a preset time, if the number of VoP is greater than
First threshold, it is determined that status information is state of activation, if the number of VoP is less than or equal to second threshold, it is determined that shape
State information is silent status.
Preset time can be 160ms, and first threshold and second threshold can be set according to actual needs, in general, first
Threshold value should be greater than second threshold, as an example, first threshold can be 3, second threshold can be 2.
It should be noted that the process that above-mentioned determining status information is state of activation or silent status is periodic cycle
, for example, when being 160ms in preset time and determining period, PDCP is determined after secondary status information, under immediately entering
In the primary operation for determining status information.
Step 102, when detecting uplink scheduling request SR, the coding lattice for formerly having uploaded VoP are extracted respectively
Formula, IP characteristic information and IP agreement version information；
IP agreement version information includes IPV4 (Internet Protocol Version 4) and IPV6 (Internet
Protocol Version 6), IPV6 is that the next generation optical transmission network version of IPV4 can solve to substitute IPV4
The problem of the network address resources deficiency of IPV4.
In embodiments of the present invention, PDCP can be analyzed to formerly having uploaded VoP in advance, be encoded
Format, IP characteristic information and IP agreement version information, and by the coded format of acquisition, IP characteristic informations and IP agreement version
Information is stored.
IP characteristic informations can be compressed IP head or non-compressed IP head, if is compressed to IP and is matched by base station
It sets, PDCP can be that can determine the IP head characteristic information for formerly having uploaded VoP based on the configuration of base station.
Coded format can usually obtain in the following manner:
PDCP obtains the packet size for formerly having uploaded VoP, IP characteristic informations and IP agreement version letter first
Breath, then, according to the corresponding relationship of preset coded format and Bao great little, IP characteristic informations, IP agreement version information
(corresponding relationship can refer to the following table 1-1), that is, can determine coded format.Voice number in VoLTE voice service, under state of activation
The SD voice that voice coder code rate is 12.2K, i.e. narrowband (NB_AMR) VoP and voice are generally included according to the format of packet
Encoding rate is the high definition voice of 23.85K, i.e. broadband (WB_AMR) VoP.
The coded format and Bao great little (unit byte), status information, IP characteristic informations, IP agreements of VoP
The relationship of version information such as table 1-1:
Table 1-1
PDCP can be according to pair of coded format and Bao great little, IP characteristic informations, IP agreement version information in table 1-1
It should be related to, obtain the coded format for formerly having uploaded VoP, for example, when packet size information is 101byte, IP features
Information is that compressed IP head, IP agreement version information are not IPV4, then the coded format obtained is WB_AMR.
Since coded format, IP characteristic informations and IP agreement version information are that PDCP analyzes acquisition in advance, and is deposited
Storage, thus, when base station detects the uplink scheduling request SR that terminal uploads, PDCP can directly extract first from storage
Coded format, IP characteristic informations and the IP agreement version information for having uploaded VoP, without being dynamically determined.
Step 103, using the coded format, the IP characteristic information and the IP agreement version information, determination is worked as
The secondary packet size information that need to upload VoP；
PDCP can be by determining status information and the IP of extraction head characteristic information, IP agreement version information, coded format
It is sent to media access control layer MAC (MediaAccess Control).
In VoLTE voice service, since IP agreement version information, IP characteristic informations and coded format are with relatively solid
Fixed characteristic, during voice service, IP agreement version information, IP characteristic information and coded format will not usually change
Become, thus, during voice service, the packet size of VoP be also it is relatively-stationary, MAC can using formerly
Upload VoP IP agreement version information, IP characteristic informations and coded format, by the packet size information of table 1-1 and,
The corresponding relationship of coded format, IP characteristic information, IP agreement version information is determined when the secondary packet that need to upload VoP is big
Small information.
Step 104, according to the IP characteristic information, the IP agreement version information, the coded format and the shape
State information determines the size for needing distributing buffer to occupy BO；
MAC can be according to IP characteristic informations, packet size information and status information, and determining needs distributing buffer to occupy the big of BO
It is small.
In one preferred embodiment of the invention, IP characteristic informations are compressed IP head or non-compressed IP head, state letter
Breath is state of activation or silent status, then step 104 may include following sub-step:
Sub-step S21 obtains the hair of VoP under the detection cycle and state of activation of uplink scheduling request SR respectively
Send the period；
Base station can periodically detect the uplink scheduling request SR for whether having terminal to upload, and the period of detection can basis
Actual demand is configured, the embodiment of the present invention to this with no restriction, as an example, can will test period assignment be 5ms,
10ms, 20ms, 40ms or 80ms.
Sub-step S22 determines that the size for needing distributing buffer to occupy BO is K, K when the status information is state of activation
=N*T1/T2；
Wherein, N is indicated as the secondary packet size information that need to upload VoP, T1Indicate the detection of uplink scheduling request SR
Period, T2Indicating the sending cycle of VoP under state of activation, the value of T1/T2 rounds up, if for example, T1/T2
Value is 3.5, then after rounding up, the value of T1/T2 becomes 4.
Sub-step S23, when the status information is silent status, and the IP characteristic information is compressed IP head, really
Surely needing distributing buffer to occupy the size of BO is 15 bytes；
Sub-step S24, when the status information is silent status, and when the IP characteristic information is not compressed IP head,
Determine that the size for needing distributing buffer to occupy BO is 72 bytes.
In fact, determining that the size for needing distributing buffer to occupy BO is referred to when status information is silent status information
Table 1-1.
Step 105, modulation and coding strategy MCS grade are determined；
In the concrete realization, it for the modulation of up channel and coding strategy MCS grade, can be referred to according to channel detection
Signal SRS (Sounding Reference Signal) is determined.Step 106, according to the size for needing distributing buffer to occupy BO
With the modulation and coding strategy MCS grade, determination need to distribute Physical Resource Block PRB number.
MAC can need allotment with coding strategy MCS grade, determination according to needing distributing buffer to occupy the size of BO and modulate
Manage PRB number of resource block.
In one preferred embodiment of the invention, step 106 may include following sub-step:
Sub-step S31 is based on the first default mapping relations, determining corresponding with coding strategy MCS grade with the modulation
Transmission block TBS grade；
In 36.213 agreements of TD-LTE system, modulation and coding strategy MCS grade and transmission block TBS grade are defined
Mapping relations (the i.e. first default mapping relations), such as table 1-2, MAC can be determined and modulation according to the first default mapping relations
Transmission block TBS grade corresponding with coding strategy MCS grade.
Table 1-2
For example, corresponding transmission block TBS grade is 5, when modulation and coding when modulation is 5 with coding strategy MCS grade
When tactful MCS grade is 11, corresponding transmission block TBS grade is 10.
Sub-step S32 is based on the second default mapping relations, determines, object corresponding with identified transmission block TBS grade
Manage the maximum carrying data volume of PRB number of resource block；
In 36.213 agreements of TD-LTE system, transmission block TBS grade and the number of Physical Resource Block PRB are defined
The mapping relations (the i.e. second default mapping relations) of maximum carrying data volume, such as table 1-3, MAC can be according to the second default mapping
Relationship, determination is corresponding with identified transmission block TBS grade, the maximum carrying data volume of PRB number of Physical Resource Block.
Table 1-3
For example, the maximum carrying data volume that PRB number of Physical Resource Block is 1 is 72 for when transmission block TBS grade is 5,
The maximum carrying data volume that PRB number of Physical Resource Block is 6 is 504.
Maximum carrying data volume is more than or equal to by sub-step S33, the physics money that need to be distributed caching and occupy the size of BO
The minimum value of PRB number of source block is determined as that need to distribute Physical Resource Block PRB number.
For example, when transmission block TBS grade be 5, and need to distribute caching occupy BO size be 400bit when, can upload
PRB number of Physical Resource Block of 400bit data volume includes 5,6,7,8,9,10, then it is determined that Physical Resource Block PRB need to be distributed
Number is 5 (minimum values), when transmission block TBS grade is 7, and the size that need to distribute caching occupancy BO is 760bit, can be uploaded
PRB number of Physical Resource Block of 760bit data volume includes 7,8,9,10, then it is determined that need to distribute PRB number of Physical Resource Block and be
7 (minimum values).
The embodiment of the present invention can determine the status information of voice service, can be with when detecting uplink scheduling request SR
Coded format, IP characteristic informations and the IP agreement version information for formerly having uploaded VoP are extracted respectively, using described
Coded format, the IP characteristic information and the IP agreement version information are calculated when the secondary packet that need to upload VoP is big
Small information determines the size for needing distributing buffer to occupy BO according to IP characteristic informations, packet size information and status information, determines
Modulation and coding strategy MCS grade are determined according to the size and modulation and coding strategy MCS grade for needing distributing buffer occupancy BO
It need to distribute Physical Resource Block PRB number, since the embodiment of the present invention is when detecting uplink scheduling request SR, it can to determine and adjust
System with coding strategy MCS grade and it is corresponding need to distribute Physical Resource Block PRB number, PRB determining number can disposably by
It needs the VoP that uploads to upload when secondary, 4 PRB when being 6 is needed by MCS grade to upload BSR with respect to the background art,
For redefining MCS grade and the way of PRB number by BSR again, the embodiment of the present invention can reduce voice data from terminal
To the time delay of another terminal, user experience is promoted.
In addition, in the background technology, (4) upload BSR of fixation PRB and low volume data when be by MCS grade being 6,
In practical application, uploads BSR and low volume data does not need 4 PRB in most cases, be easy to cause PRB's in the case
Waste, and the embodiment of the present invention need to divide according to that need to distribute the size for caching occupancy BO and modulation and coding strategy MCS grade, determination
With PRB number of Physical Resource Block, also that is, the embodiment of the present invention based on upload in need voice data total size and modulation
With coding strategy MCS grade, determination need to distribute Physical Resource Block PRB number, and determining need distribute PRB number of Physical Resource Block,
It is to be enough to carry the minimum value when in PRB number of the secondary all VoPs for needing to upload, what the embodiment of the present invention determined
PRB number of Physical Resource Block need to be distributed actually and can just be carried and work as all VoPs that time needs upload, thus, phase
For the Physical Resource Block PRB of fixed number when background technique distribution MCS grade is 6, the embodiment of the present invention can be kept away
Exempt from the waste of the Physical Resource Block PRB of distribution, improves the utilization rate of Physical Resource Block PRB.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
Referring to Fig. 2, the ascending resource based on uplink scheduling request SR in a kind of VoLTE voice service of the invention is shown
The structural block diagram of distributor embodiment, can specifically include:
Packet data convergence protocol PDCP20 and media access control layer MAC21, the packet data convergence protocol
PDCP includes status information determining module 201 and has formerly uploaded the information extraction modules 202 of VoP, and the media connect
Enter control layer MAC include packet size information computing module 211, need distributing buffer occupy BO size determining module 212, modulation with
Coding strategy MCS level determination module 213 and Physical Resource Block PRB several determining modules 214 need to be distributed, in which:
The status information determining module 201 is used to determine the status information of institute's voice traffic；
It is described formerly to have uploaded the information extraction modules of VoP, for when detecting uplink scheduling request SR,
Coded format, IP characteristic informations and the IP agreement version information for formerly having uploaded VoP are extracted respectively；
The packet size information determining module, for using the coded format, the IP characteristic information and the IP
Protocol version information is determined when the secondary packet size information that need to upload VoP；
The size determining module 211 for needing distributing buffer to occupy BO is used for according to the IP characteristic information, the packet
Size information and the status information determine the size for needing distributing buffer to occupy BO；
The modulation is with coding strategy MCS level determination module 212 for determining modulation and coding strategy MCS grade；
It is described to distribute Physical Resource Block PRB several determining modules 213 for needing distributing buffer to occupy BO's according to described
Size and the modulation and coding strategy MCS grade, determination need to distribute Physical Resource Block PRB number.
In one preferred embodiment of the invention, status information determining module 201 may include:
The number statistic submodule 2011 of VoP, for counting received VoP within a preset time
Number；
State of activation determines submodule 2012, when being greater than first threshold for the number in the VoP, then really
The fixed status information is state of activation；
Silent status determines submodule 2013, when being less than second threshold for the number in the VoP, then really
The fixed status information is silent status, wherein the first threshold is greater than the second threshold.
In one preferred embodiment of the invention, the size determining module 212 for needing distributing buffer to occupy BO can be with
Include:
Period acquisition submodule 2121, language under the detection cycle and state of activation for obtaining uplink scheduling request SR respectively
The sending cycle of sound data packet；
First size for needing distributing buffer to occupy BO determines submodule 2122, for being state of activation when the status information
When, determine that the size for needing distributing buffer to occupy BO is K, K=N*T1/T2, wherein N indicates the packet size information, T1In expression
The detection cycle of row scheduling request SR, T2Indicate that the sending cycle of VoP under state of activation, the value of T1/T2 take upwards
It is whole；
Second size for needing distributing buffer to occupy BO determines submodule 2123, for being silent shape when the status information
State, and the IP characteristic information be compressed IP head when, determine need distributing buffer occupy BO size be 15 bytes；
The size that third needs distributing buffer to occupy BO determines submodule 2124, for being silent shape when the status information
State, and the IP characteristic information be not compressed IP head when, determine need distributing buffer occupy BO size be 72 bytes.
In one preferred embodiment of the invention, it is described need to distribute Physical Resource Block PRB several determining modules 214 can be with
Include:
Transmission block TBS grade determines submodule 2141, for being based on the first default mapping relations, it is determining with the modulation with
The corresponding transmission block TBS grade of coding strategy MCS grade；
The maximum carrying data volume of PRB number of Physical Resource Block determines submodule 2142, for based on the second default mapping
Relationship, determination is corresponding with identified transmission block TBS grade, the maximum carrying data volume of PRB number of Physical Resource Block；
Physical Resource Block PRB number need to be distributed and determine submodule 2143, for maximum carrying data volume to be more than or equal to, institute
The minimum value that need to distribute the PRB number of Physical Resource Block for the size that caching occupies BO is stated, is determined as that Physical Resource Block PRB need to be distributed
Number.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
Above to the ascending resource based on uplink scheduling request SR point in a kind of VoLTE voice service provided by the present invention
Ascending resource distributor based on uplink scheduling request SR in method of completing the square and a kind of VoLTE voice service, has carried out detailed Jie
It continues, used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only
It is to be used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to this hair
Bright thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not manage
Solution is limitation of the present invention.
Claims (8)
1. the uplink resource allocating method based on uplink scheduling request SR in a kind of VoLTE voice service, which is characterized in that packet
It includes:
Determine that the status information of institute's voice traffic, the status information include: state of activation and silent status；
When detecting uplink scheduling request SR, coded format, the IP features for formerly having uploaded VoP are extracted respectively
Information and IP agreement version information；
Using the coded format, the IP characteristic information and the IP agreement version information, voice need to be uploaded when secondary by determining
The packet size information of data packet；
According to the IP characteristic information, the packet size information and the status information, determining needs distributing buffer to occupy BO's
Size；
Determine modulation and coding strategy MCS grade；
Physics need to be distributed according to the size for needing distributing buffer to occupy BO and the modulation and coding strategy MCS grade, determination
PRB number of resource block.
2. the method according to claim 1, wherein the step of status information of determining institute's voice traffic
Include:
Count the number of received VoP within a preset time；
If the number of the VoP is greater than first threshold, it is determined that the status information is state of activation；
If the number of the VoP is less than or equal to second threshold, it is determined that the status information is silent status, wherein
The first threshold is greater than the second threshold.
3. the method according to claim 1, wherein the IP characteristic information is compressed IP head or non-compressed IP
Head, the status information be state of activation or silent status, it is described according to the IP characteristic information, the packet size information and
The status information, determine need distributing buffer occupy BO size the step of include:
The sending cycle of VoP under the detection cycle and state of activation of uplink scheduling request SR is obtained respectively；
When the status information is state of activation, determine that the size for needing distributing buffer to occupy BO is K, K=N*T1/T2, wherein
N indicates the packet size information, T1Indicate the detection cycle of uplink scheduling request SR, T2Indicate VoP under state of activation
Sending cycle, the value of T1/T2 rounds up；
When the status information is silent status, and the IP characteristic information is compressed IP head, determination needs distributing buffer to account for
It is 15 bytes with the size of BO；
When the status information be silent status, and the IP characteristic information be not compressed IP head when, determine need distributing buffer
The size for occupying BO is 72 bytes.
4. method according to claim 1 or 3, which is characterized in that described to need distributing buffer to occupy the big of BO according to described
It is small and it is described modulation with coding strategy MCS grade, determination need to distribute Physical Resource Block PRB it is several the step of include:
Based on the first default mapping relations, determining transmission block TBS corresponding with coding strategy MCS grade with the modulation etc.
Grade；
Based on the second default mapping relations, determination is corresponding with identified transmission block TBS grade, and Physical Resource Block PRB
Several maximum carrying data volumes；
Maximum carrying data volume is more than or equal to, PRB number of Physical Resource Block of the size that caching occupancy BO need to be distributed
Minimum value is determined as to distribute Physical Resource Block PRB number.
5. based on the ascending resource distributor of uplink scheduling request SR in a kind of VoLTE voice service, which is characterized in that described
Device includes packet data convergence protocol PDCP and media access control layer MAC, the packet data convergence protocol PDCP
Including status information determining module and the first information extraction modules for having uploaded VoP, the media access control layer
MAC includes packet size information determining module, distributing buffer is needed to occupy size determining module, modulation and coding strategy MCS of BO etc.
Grade and need to distribute Physical Resource Block PRB several determining modules at determining module, and described device includes:
The status information determining module, the status information of voice traffic for determining, the status information include: activation
State and silent status；
The information extraction modules for formerly having uploaded VoP, for distinguishing when detecting uplink scheduling request SR
Extract coded format, IP characteristic informations and the IP agreement version information for formerly having uploaded VoP；
The packet size information determining module, for using the coded format, the IP characteristic information and the IP agreement
Version information is determined when the secondary packet size information that need to upload VoP；
The size determining module for needing distributing buffer to occupy BO, for believing according to the IP characteristic information, the packet size
Breath and the status information determine the size for needing distributing buffer to occupy BO；
The modulation and coding strategy MCS level determination module, for determining modulation and coding strategy MCS grade；
It is described to distribute Physical Resource Block PRB several determining modules, for according to it is described need distributing buffer occupy BO size and
The modulation and coding strategy MCS grade, determination need to distribute Physical Resource Block PRB number.
6. device according to claim 5, which is characterized in that the status information determining module includes:
The number statistic submodule of VoP, for counting the number of received VoP within a preset time；
State of activation determines submodule, when being greater than first threshold for the number in the VoP, it is determined that the shape
State information is state of activation；
Silent status determines submodule, when being less than or equal to second threshold for the number in the VoP, it is determined that institute
Stating status information is silent status, wherein the first threshold is greater than the second threshold.
7. device according to claim 5, which is characterized in that the IP characteristic information is compressed IP head or non-compressed IP
Head, the status information are state of activation or silent status, and the size determining module for needing distributing buffer to occupy BO includes:
Period acquisition submodule, VoP under the detection cycle and state of activation for obtaining uplink scheduling request SR respectively
Sending cycle；
First size for needing distributing buffer to occupy BO determines submodule, for determining when the status information is state of activation
Needing distributing buffer to occupy the size of BO is K, K=N*T1/T2, wherein N indicates the packet size information, T1Indicate uplink scheduling
Request the detection cycle of SR, T2Indicate that the sending cycle of VoP under state of activation, the value of T1/T2 round up；
Second size for needing distributing buffer to occupy BO determines submodule, for being silent status when the status information, and it is described
When IP characteristic informations are compressed IP head, determine that the size for needing distributing buffer to occupy BO is 15 bytes；
The size that third needs distributing buffer to occupy BO determines submodule, for being silent status when the status information, and it is described
IP characteristic informations be not compressed IP head when, determine that the size for needing distributing buffer to occupy BO is 72 bytes.
8. the device according to claim 5 or 7, which is characterized in that described to distribute Physical Resource Block PRB number determining mould
Block includes:
Transmission block TBS grade determines submodule, for being based on the first default mapping relations, determining and the modulation and coding strategy
The corresponding transmission block TBS grade of MCS grade；
The maximum carrying data volume of PRB number of Physical Resource Block determines submodule, for being based on the second default mapping relations, determines
It is corresponding with identified transmission block TBS grade, the maximum carrying data volume of PRB number of Physical Resource Block；
Physical Resource Block PRB number need to be distributed and determine submodule, it is described to need to distribute for maximum carrying data volume to be more than or equal to
Caching occupies the minimum value of the PRB number of Physical Resource Block of the size of BO, is determined as to distribute Physical Resource Block PRB number.
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| TW200824474A (en) * | 2006-10-28 | 2008-06-01 | Interdigital Tech Corp | Method and apparatus for scheduling uplink transmissions for real time services during a silent period |
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| CN102823183A (en) * | 2010-03-29 | 2012-12-12 | Lg电子株式会社 | Effective method and device for transmitting control information for supporting uplink multi-antenna transmission |
| CN102316592A (en) * | 2010-07-01 | 2012-01-11 | 电信科学技术研究院 | Persistent scheduling method and device |
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