CN102196514A - Method and device for diagnosing voice service quality in WLAN (Wireless Local Area Network) voice communication - Google Patents
Method and device for diagnosing voice service quality in WLAN (Wireless Local Area Network) voice communication Download PDFInfo
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Abstract
The invention provides a method and a device for diagnosing voice service quality in WLAN (Wireless Local Area Network) voice communication. First, the user terminal collects the network related information of WLAN in the preset calling time interval to generate a real time TCP (transmission control protocol) expansion report; then, when the call ends, the user terminal can generate a service quality report based on the real time TCP expansion report and send out the service quality report to network equipment; after receiving the service quality report from the user terminal, according to the network related information of WLAN, the network equipment determines the voice service quality under WLAN circumstance, such as, the signal cover condition of the WLAN, roaming service condition of the user terminal and the data packet send-receive condition of the user terminal. The method and the device provided by the invention enables technical support personnel or network managers to be more convenient and effective diagnose the problems of WLAN.
Description
Technical field
The present invention relates to voice communication, relate in particular to wlan voice communication (Voice overWLAN, VoWLAN).
Background technology
VoIP (Voice over Internet Protocol, internet voice communication) refer to will the simulation voice signal after overcompression and package, carry out the transmission of voice signal at the environment of IP network with the form of data packet.The advantage of VoIP maximum is to adopt Internet and the interconnected environment of global ip widely, and, better service more than traditional business are provided.
VoWLAN (Voice over WLAN, wlan voice communication) is the expansion to wired VoIP system, is the another alternative solution that traditional analog and digital voice is communicated by letter.Its advantage is that wireless speech and data application are converged with wireless form, and terminal has mobility.
Nowadays, wlan voice communication has become more and more popular and will become a kind of trend, and pure WLAN mobile phone on market or WLAN-GSM dual-mode handset also increase day by day.Yet because the network stabilization of WLAN (wireless local area network) is good not as Ethernet, therefore, in wlan voice communication, the voice service quality remains the problem that needs solve.
At present IETF (Internet Engineering Task Force, internet engineering duty group) in the standard, define some and be used for fixing service quality (the Qualityof service of IP terminal, QoS) agreement, for example, the RTCP XR that in RFC3661, defines (Real-time Transport Control Protocol Extended Report, RTCP Real-time Transport Control Protocol extended report), wherein define a cover index, be used to assess voip call quality and diagnosis problem.But, for the wireless IP terminals among the VoWLAN, in RTCP XR, there is no special definition, therefore, when the voice quality that arrives when the user experience of VoWLAN was relatively poor, technical support personnel or network manager were difficult to diagnose out the problem place of this WLAN (wireless local area network).
Summary of the invention
Wireless lan (wlan) itself has some specific criterions, and for example, the received signal intensity level is used to assess current wireless environment.If these information can be put into existing RTCP Real-time Transport Control Protocol extended report, it is very useful so technical support personnel or network manager being diagnosed the problem of WLAN (wireless local area network), and this can help them to improve the service quality of whole voice communication network.
Based on this, the present invention provides a kind of method that is used for providing to the network equipment service quality report in the user terminal of wlan voice communication in one embodiment, it is characterized in that, said method comprising the steps of: a. is in the predetermined conversation period, and the network related information of collecting described WLAN (wireless local area network) is to generate the RTCP Real-time Transport Control Protocol extended report; B. behind end of conversation,, generate described service quality report according to described RTCP Real-time Transport Control Protocol extended report; C. described service quality report is sent to the described network equipment.
Optionally, described step c also comprises: by session initiation protocol described service quality report is sent to the network equipment.
Optionally, the network related information of described WLAN (wireless local area network) comprises: in this predetermined conversation period, and the number of times that this user terminal is roamed between WAP (wireless access point); In this predetermined conversation period, the MAC Address of each WAP (wireless access point) that this user terminal roams into; In this predetermined conversation period, the minimum value of the received signal intensity of each WAP (wireless access point) that this user terminal roams into; In this predetermined conversation period, the maximum of the received signal intensity of each WAP (wireless access point) that this user terminal roams into; In this predetermined conversation period, the mean value of the received signal intensity of each WAP (wireless access point) that this user terminal roams into; In this predetermined conversation period, the standard variance of the received signal intensity of each WAP (wireless access point) that this user terminal roams into; In this predetermined conversation period, this user terminal sends the retransmission rate of RTP packet; In this predetermined conversation period, this user terminal receives the heavy yield of RTP packet.
The present invention provides a kind of method that is used to handle from the service quality report of user terminal in another embodiment in the network equipment of wlan voice communication, it is characterized in that, said method comprising the steps of: i. receives the service quality report from described user terminal; Ii. according to described service quality report, determine the voice service quality under the described radio local network environment.
Optionally, described step I i may further comprise the steps: the network related information of at first extracting described WLAN (wireless local area network) from described service quality report; According to the network related information of being extracted, determine the voice service quality under the described radio local network environment then.
Optionally, the network related information of described WLAN (wireless local area network) comprises: in the predetermined conversation period, and the number of times that described user terminal is roamed between WAP (wireless access point); In the predetermined conversation period, the MAC Address of each WAP (wireless access point) that described user terminal roams into; In the predetermined conversation period, the minimum value of the received signal intensity of each WAP (wireless access point) that described user terminal roams into; In the predetermined conversation period, the maximum of the received signal intensity of each WAP (wireless access point) that described user terminal roams into; In the predetermined conversation period, the mean value of the received signal intensity of each WAP (wireless access point) that described user terminal roams into; In the predetermined conversation period, the standard variance of the received signal intensity of each WAP (wireless access point) that described user terminal roams into; In the predetermined conversation period, described user terminal sends the retransmission rate of RTP packet; In the predetermined conversation period, described user terminal receives the heavy yield of RTP packet.
Optionally, the step of the voice service quality under described definite described radio local network environment comprises the signal coverage varies of determining described WLAN (wireless local area network), determines the data packet transceive situation of roaming condition and definite described user terminal of described user terminal.
The present invention provides a kind of generator that is used for providing to the network equipment service quality report in the user terminal of wlan voice communication in one embodiment, it is characterized in that, described generator comprises: gathering-device, be used in the predetermined conversation period, the network related information of collecting described WLAN (wireless local area network) is to generate the RTCP Real-time Transport Control Protocol extended report; Generating apparatus is used for behind end of conversation, according to described RTCP Real-time Transport Control Protocol extended report, generates described service quality report; Dispensing device is used for described service quality report is sent to the described network equipment.
Optionally, described dispensing device also is used for: by session initiation protocol described service quality report is sent to the network equipment.
Optionally, the network related information of described WLAN (wireless local area network) comprises: in this predetermined conversation period, and the number of times that this user terminal is roamed between WAP (wireless access point); In this predetermined conversation period, the MAC Address of each WAP (wireless access point) that this user terminal roams into; In this predetermined conversation period, the minimum value of the received signal intensity of each WAP (wireless access point) that this user terminal roams into; In this predetermined conversation period, the maximum of the received signal intensity of each WAP (wireless access point) that this user terminal roams into; In this predetermined conversation period, the mean value of the received signal intensity of each WAP (wireless access point) that this user terminal roams into; In this predetermined conversation period, the standard variance of the received signal intensity of each WAP (wireless access point) that this user terminal roams into; In this predetermined conversation period, this user terminal sends the retransmission rate of RTP packet; In this predetermined conversation period, this user terminal receives the heavy yield of RTP packet.
The present invention provides a kind of processing unit that is used to handle from the service quality report of user terminal in another embodiment in the network equipment of wlan voice communication, it is characterized in that, described processing unit comprises: receiving system is used to receive the service quality report from described user terminal; First determines device, is used for according to described service quality report, determines the voice service quality under the described radio local network environment.
Optionally, described first determines that device comprises: extraction element is used for from the network related information of the described WLAN (wireless local area network) of described service quality report extraction; Second determines device, is used for according to the network related information of being extracted, and determines the voice service quality under the described radio local network environment.
Optionally, the network related information of described WLAN (wireless local area network) comprises: in the predetermined conversation period, and the number of times that described user terminal is roamed between WAP (wireless access point); In the predetermined conversation period, the MAC Address of each WAP (wireless access point) that described user terminal roams into; In the predetermined conversation period, the minimum value of the received signal intensity of each WAP (wireless access point) that described user terminal roams into; In the predetermined conversation period, the maximum of the received signal intensity of each WAP (wireless access point) that described user terminal roams into; In the predetermined conversation period, the mean value of the received signal intensity of each WAP (wireless access point) that described user terminal roams into; In the predetermined conversation period, the standard variance of the received signal intensity of each WAP (wireless access point) that described user terminal roams into; In the predetermined conversation period, described user terminal sends the retransmission rate of RTP packet; In the predetermined conversation period, described user terminal receives the heavy yield of RTP packet.
Optionally, described first determines that device also is used for determining the signal coverage varies of described WLAN (wireless local area network) according to described service quality report, determines the data packet transceive situation of roaming condition and definite described user terminal of described user terminal.
By using method and apparatus of the present invention, can determine the signal coverage varies of this WLAN (wireless local area network) in wlan voice communication, the data packet transceive situation of the roaming condition of user terminal and user terminal is to help technical support personnel or the easier problem place of more effectively diagnosing this WLAN (wireless local area network) of network manager.
The various aspects of the present invention explanation of specific embodiment that will be by hereinafter and more clear.
Description of drawings
By reading the detailed description of doing with reference to the following drawings that non-limiting example is done, above-mentioned and other feature of the present invention will become more apparent:
Fig. 1 shows the format and content of the report blocks (VoWLAN Metrics Report Block) of redetermination in the RTCP Real-time Transport Control Protocol extended report according to an embodiment of the invention (RTCP XR);
Fig. 2 shows the method flow diagram that is used for providing to the network equipment service quality report in the user terminal of wlan voice communication according to an embodiment of the invention;
Fig. 3 shows the method flow diagram that is used to handle from the service quality report of user terminal according to an embodiment of the invention in the network equipment of wlan voice communication;
Fig. 4 shows the structured flowchart that is used for providing to the network equipment generator of service quality report in the user terminal of wlan voice communication according to an embodiment of the invention; And
Fig. 5 shows the structured flowchart that is used to handle from the processing unit of the service quality report of user terminal according to an embodiment of the invention in the network equipment of wlan voice communication.
Same or analogous mark is used to represent same or analogous step or device in the accompanying drawing.
Embodiment
Comprise packet loss rate, discarded ratio of packet, burst packets density and duration, Inter-packet gap density and duration, loop time-delay, end system time-delay, signal level, noise level, residual echo reflection loss, MOS listening quality, MOS speech quality and wobble information in the existing RTCP Real-time Transport Control Protocol extended report (RTCP-XR).
Concrete, having defined 7 report blocks (report blocks) in this RTCP Real-time Transport Control Protocol extended report (RTCP-XR), these 7 report blocks are respectively:
1)Loss?RLE?Report?Block；
2)Duplicate?RLE?Report?Block；
3)Packet?Receipt?Times?Report?Block；
4)Receiver?Reference?Time?Report?Block；
5)DLRR?Report?Block；
6)Statistic?Summary?Report?Block；
7)VoIP?Metrics?Report?Block。
Form and particular content about these 7 report blocks can for simplicity's sake, not given unnecessary details at this referring to the definition among the RFC 3661.
For realizing purpose of the present invention, need in existing RTCP Real-time Transport Control Protocol extended report, define a new report blocks, the report blocks of this redetermination is called VoWLAN MetricsReport Block, and (block type is 8 BT) to block type.
The form of the VoWLAN Metrics Report Block of redetermination as shown in Figure 1.
Among the figure, the block type of ' BT=8 ' expression this report piece is VoWLAN MetricsReport Block, accounts for 8 bits.
' reserved ' represents that this zone is to reserve for the definition in future, accounts for 8 bits.If to the not definition of this zone, bit that so should the zone all is set to 0, and the recipient must ignore this regional bit.
' block length of block length=X ' expression this report piece accounts for 16 bits.The block length of this report piece comprises head, is that 32 bit words subtract 1.If the definition of this report piece allows, the block length of this report piece is 0, and expression this report piece only comprises block type zone and block length zone.
' SSRC of source ' expression this report piece at the synchronisation source of RTP source data packet, account for 32 bits.
' begin_seq ' expression this report piece at first sequence number of RTP packet, account for 16 bits.
' end_seq ' expression this report piece at last sequence number of RTP packet add 1, account for 16 bits.Usually, in whole communication process, can produce many RTP packets and transmit, and each RTP packet all there is a sequence number.If only need in the predetermined conversation period, also be in a certain sequence number range, for example from 50 to 100 interior RTP packets generate VoWLAN Metrics Report Block, so, this report piece at first sequence number of RTP packet be 50, last sequence number is 100.
' roaming_times ' is illustrated in the RTP sequence of data packet scope of ' begin_seq ' and ' end_seq ' qualification, also i.e. this sequence number range in the pairing predetermined conversation period, user terminal is at WAP (wireless access point) (access point, AP) number of times of roaming between accounts for 8 bits.In this predetermined conversation period, user terminal whenever roams into a WAP (wireless access point), and the roaming number of times then adds 1.
' Tx_retry_rate ' is illustrated in the RTP sequence of data packet scope of ' begin_seq ' and ' end_seq ' qualification, and also promptly this sequence number range is in the pairing predetermined conversation period, and the retransmission rate of RTP packet accounts for 8 bits.The retransmission rate of RTP packet can be used for being identified in this predetermined conversation period, the network busy extent of this WLAN (wireless local area network).
' Rx_retry_rate ' is illustrated in the RTP sequence of data packet scope of ' begin_seq ' and ' end_seq ' qualification, and also promptly this sequence number range is in the pairing predetermined conversation period, and the heavy yield of RTP packet accounts for 8 bits.The heavy yield of RTP packet can be used for being identified in this predetermined conversation period, the busy extent of this WLAN (wireless local area network) or WAP (wireless access point).
' Last 4 bytes of AP ' s MAC address ' are illustrated in the RTP sequence of data packet scope of ' begin_seq ' and ' end_seq ' qualification, also i.e. this sequence number range in the pairing predetermined conversation period, last 4 bytes of the MAC Address of each WAP (wireless access point) that user terminal roams into account for 32 bits.Usually, a MAC Address is made up of 6 bytes, but in certain geographic range, because the number of WAP (wireless access point) is limited, therefore, preceding 2 bytes of the MAC Address of each WAP (wireless access point) are all identical, so only last 4 bytes with the MAC Address of each WAP (wireless access point) just can identify a WAP (wireless access point) uniquely.
' min_RSSI ' is illustrated in the RTP sequence of data packet scope of ' begin_seq ' and ' end_seq ' qualification, also i.e. this sequence number range in the pairing predetermined conversation period, the minimum value of the received signal intensity of each WAP (wireless access point) that user terminal roams into accounts for 8 bits.
' max_RSSI ' is illustrated in the RTP sequence of data packet scope of ' begin_seq ' and ' end_seq ' qualification, also i.e. this sequence number range in the pairing predetermined conversation period, the maximum of the received signal intensity of each WAP (wireless access point) that user terminal roams into accounts for 8 bits.
' mean_RSSI ' is illustrated in the RTP sequence of data packet scope of ' begin_seq ' and ' end_seq ' qualification, also i.e. this sequence number range in the pairing predetermined conversation period, the mean value of the received signal intensity of each WAP (wireless access point) that user terminal roams into accounts for 8 bits.
' dev_RSSI ' is illustrated in the RTP sequence of data packet scope of ' begin_seq ' and ' end_seq ' qualification, also i.e. this sequence number range in the pairing predetermined conversation period, the standard variance of the received signal intensity of each WAP (wireless access point) that user terminal roams into accounts for 8 bits.
By the report blocks form among Fig. 1 as can be known, in the RTP sequence of data packet scope that ' begin_seq ' and ' end_seq ' limits, also i.e. this sequence number range in the pairing predetermined conversation period, user terminal whenever roams into a WAP (wireless access point), then note last 4 bytes of the MAC Address of this WAP (wireless access point), and be recorded in the minimum value (min_RSSI) of the received signal intensity under this WAP (wireless access point), the maximum of received signal intensity (max_RSSI), the standard variance (dev_RSSI) of mean value of received signal intensity (mean_RSSI) and received signal intensity.
In one embodiment, each WAP (wireless access point) that roams at user terminal, user terminal is every the scheduled time, for example 1 minute, gather a received signal intensity level, then, user terminal is selected the minimum value (min_RSSI) of a minimum value as the received signal intensity under this WAP (wireless access point) from a plurality of received signal intensity levels that collected, select the maximum (max_RSSI) of a maximum, and calculate the mean value (mean_RSSI) of received signal intensity and the standard variance (dev_RSSI) of received signal intensity as the received signal intensity under this WAP (wireless access point).
Generally speaking, in the RTP sequence of data packet scope that ' begin_seq ' and ' end_seq ' limits, also i.e. this sequence number range in the pairing predetermined conversation period, user terminal has repeatedly the WAP (wireless access point) roaming, so, at each WAP (wireless access point) that user terminal roams into, all there is one group of above-mentioned data record to get off.Technical support personnel or network manager be according to a group of received signal strength signal intensity relevant information that is write down under each WAP (wireless access point), also is the signal coverage varies that the standard variance (dev_RSSI) of the mean value (mean_RSSI) of maximum (max_RSSI), received signal intensity of minimum value (min_RSSI), the received signal intensity of received signal intensity and received signal intensity just can be determined each WAP (wireless access point).
Content in the RTCP Real-time Transport Control Protocol extended report described above (RTCP XR) in the report blocks (VoWLAN Metrics Report Block) of redetermination can be used to be identified at the signal coverage varies of WLAN (wireless local area network) in the predetermined conversation period.Behind end of conversation, user terminal is sent to the webserver with those information, voice quality manager for example, and the webserver just can be determined the signal coverage varies of WLAN (wireless local area network) according to those information.
In order to make the content in the report blocks (VoWLAN Metrics Report Block) of redetermination in the RTCP Real-time Transport Control Protocol extended report (RTCP XR) can pass through Session Initiation Protocol (Session Initiation Protocol, session initiation protocol) is sent to the webserver, need be to existing " draft-ietf-sipping-rtcp-summary-06 ", see also specifically that ' http://tools.ietf.org/html/draft-ietf-sipping-rtcp-summary-06 ' expands.
Concrete, in " draft-ietf-sipping-rtcp-summary-06 ", be defined as follows for the ABFN Syntax of new parameter:
Min_RSSI＝“RSSIN”EQUAL([“-”]1*3DIGIT)；0-128
Max_RSSI＝“RSSIX”EQUAL([“-”]1*3DIGIT)；0-128
Mean_RSSI＝“RSSIE”EQUAL([“-”]1*3DIGIT)；0-128
Dev_RSSI＝“RSSID”EQUAL(1*3DIGIT)；0-128
Last?4?bytes?of?AP’s?MAC?address＝“APMAC”COLON(mac-addr)
Roaming_times＝“RT”EQUAL(1*2?DIGIT)；0-99
Tx_retry_rate＝“TRR”EQUAL(1*3DIGIT[“.”1*2DIGIT])；percentage
Rx_retry_rate＝“RRR”EQUAL(1*3DIGIT[“.”1*2DIGIT])；percentage
Based on above-mentioned definition, the SIP mechanism of describing among new " draft-ietf-sipping-rtcp-summary-06 " just can be used to the announcement (publishing) or the notice (notifying) of VoWLAN voice quality information.
Below with reference to accompanying drawing technical scheme of the present invention is described.
Fig. 2 shows the method flow diagram that is used for providing to the network equipment service quality report in the user terminal of wlan voice communication according to an embodiment of the invention.
Fig. 3 shows the method flow diagram that is used to handle from the service quality report of user terminal according to an embodiment of the invention in the network equipment of wlan voice communication.
As shown in Figure 2, at first, in step S11, in the predetermined conversation period, user terminal 10 is collected the network related information of this WLAN (wireless local area network) to generate the RTCP Real-time Transport Control Protocol extended report.
Need to prove that in whole communication process, user terminal 10 can only be collected the network related information of this WLAN (wireless local area network) in the predetermined conversation period, also can collect the network related information of this WLAN (wireless local area network) in the whole conversation period.
In the predetermined conversation period, also promptly in a certain sequence number range of RTP packet, user terminal 10 has repeatedly the WAP (wireless access point) roaming.In one embodiment, the network related information of this WLAN (wireless local area network) of user terminal 10 collections comprises:
1. in this predetermined conversation period, the MAC Address of each WAP (wireless access point) that user terminal 10 roams into;
2. in this predetermined conversation period, the minimum value of the received signal intensity of each WAP (wireless access point) that user terminal 10 roams into;
3. in this predetermined conversation period, the maximum of the received signal intensity of each WAP (wireless access point) that user terminal 10 roams into;
4. in this predetermined conversation period, the mean value of the received signal intensity of each WAP (wireless access point) that user terminal 10 roams into;
5. in this predetermined conversation period, the standard variance of the received signal intensity of each WAP (wireless access point) that user terminal 10 roams into;
6. in this predetermined conversation period, user terminal 10 sends the retransmission rate of RTP packet;
7. in this predetermined conversation period, user terminal 10 receives the heavy yield of RTP packet.
8. in this predetermined conversation period, the number of times that user terminal 10 is roamed between WAP (wireless access point).
Need to prove, the network related information of this WLAN (wireless local area network) that the user terminal enumerated among the above embodiment 10 is collected only is an example, and it only is for ' format and content of VoWLAN Metrics Report Block ' is complementary with the report blocks 8 of redetermination above that example is lifted in this place.One with ordinary skill in the art would appreciate that in the concrete application that the network related information of this WLAN (wireless local area network) that user terminal 10 is collected can also comprise other guide, for simplicity's sake, does not give unnecessary details at this.
User terminal 10 has been collected the network related information of this WLAN (wireless local area network) in the predetermined conversation period after, according to the report blocks 8 of redetermination above ' format and content of VoWLAN Metrics ReportBlock ', with collect should be in predetermined conversation period network related information of this WLAN (wireless local area network) form the RTCP Real-time Transport Control Protocol extended report as a part of content in the RTCP Real-time Transport Control Protocol extended report with all the other information.
Secondly, in step S12, behind end of conversation, user terminal 10 generates service quality report according to this RTCP Real-time Transport Control Protocol extended report.
Then, in step S13, user terminal 10 is sent to the network equipment 20 by Session Initiation Protocol (session initiation protocol) with this service quality report.
Because comprise the network related information of this WLAN (wireless local area network) in this service quality report equally, therefore, the network equipment 20 can be determined the voice service quality under this radio local network environment according to the network related information of the WLAN (wireless local area network) in this service quality report.For example, determine the signal coverage varies of this WLAN (wireless local area network), the roaming condition of user terminal 10, and the data packet transceive situation of user terminal 10.
Concrete, as shown in Figure 3, in step S21, the service quality report (QoS report) that the network equipment 20 receives from user terminal 10.
Then, in step S22, the network equipment 20 is determined the voice service quality under this radio local network environment according to this service quality report.
In one embodiment, the network equipment 20 at first extracts the network related information of this WLAN (wireless local area network) from this service quality report.Then, the network equipment 20 network related information according to this WLAN (wireless local area network) of being extracted, determine the voice service quality under this radio local network environment, for example, determine the signal coverage varies of this WLAN (wireless local area network), the roaming condition of user terminal 10, and the data packet transceive situation of user terminal 10.
Technical support personnel or network manager can more effectively be diagnosed the problem place of this WLAN (wireless local area network) easilier and take relative counter measures according to the network related information of the WLAN (wireless local area network) in the service quality report.
For example, the network equipment 20 is according to the network related information in the service quality report, the relevant information of the received signal intensity of discovery certain WAP (wireless access point) that user terminal 10 roams in this predetermined conversation period, it also is the minimum value of received signal intensity, the maximum of received signal intensity, the standard variance of the mean value of received signal intensity and received signal intensity is not satisfactory, for example, the minimum value of the received signal intensity of user terminal 10 under this WAP (wireless access point) is lower than minimum threshold, and the mean value of received signal intensity is lower than minimum threshold etc.So, the network equipment 20 just can determine that the radio conditions of this WAP (wireless access point) of disposing in the WLAN (wireless local area network) is relatively poor in this predetermined conversation period.Technical support personnel or network manager just can know the deployed position of this WAP (wireless access point) by the MAC Address of this WAP (wireless access point), thereby take relative counter measures.
In one embodiment, user terminal 10 is the VoWLAN terminal equipment, VoWLAN mobile phone for example, PDA etc.
In one embodiment, the network equipment 20 is the voice quality manager.
More than be the description of technical scheme of the present invention being carried out from the angle of method step, below will technical scheme of the present invention further be described from the angle of apparatus module.
Fig. 4 shows the structured flowchart that is used for providing to the network equipment generator of service quality report in the user terminal of wlan voice communication according to an embodiment of the invention.Among the figure, generator 100 comprises gathering-device 1001, generating apparatus 1002 and dispensing device 1003.
Fig. 5 shows the structured flowchart that is used to handle from the processing unit of the service quality report of user terminal according to an embodiment of the invention in the network equipment of wlan voice communication.Among the figure, processing unit 200 comprises receiving system 2001 and first definite device 2002.
As shown in Figure 4, at first, in the predetermined conversation period, the gathering-device 1001 in the generator 100 in the user terminal 10 is collected the network related information of this WLAN (wireless local area network) to generate the RTCP Real-time Transport Control Protocol extended report.
Need to prove that in whole communication process, gathering-device 1001 can only be collected the network related information of this WLAN (wireless local area network) in the predetermined conversation period, also can collect the network related information of this WLAN (wireless local area network) in the whole conversation period.
In the predetermined conversation period, also promptly in a certain sequence number range of RTP packet, user terminal 10 has repeatedly the WAP (wireless access point) roaming.In one embodiment, the network related information of this WLAN (wireless local area network) of gathering-device 1001 collections comprises:
1. in this predetermined conversation period, the MAC Address of each WAP (wireless access point) that user terminal 10 roams into;
2. in this predetermined conversation period, the minimum value of the received signal intensity of each WAP (wireless access point) that user terminal 10 roams into;
3. in this predetermined conversation period, the maximum of the received signal intensity of each WAP (wireless access point) that user terminal 10 roams into;
4. in this predetermined conversation period, the mean value of the received signal intensity of each WAP (wireless access point) that user terminal 10 roams into;
5. in this predetermined conversation period, the standard variance of the received signal intensity of each WAP (wireless access point) that user terminal 10 roams into;
6. in this predetermined conversation period, user terminal 10 sends the retransmission rate of RTP packet;
7. in this predetermined conversation period, user terminal 10 receives the heavy yield of RTP packet.
8. in this predetermined conversation period, the number of times that user terminal 10 is roamed between WAP (wireless access point).
Need to prove, the network related information of this WLAN (wireless local area network) that the gathering-device enumerated among the above embodiment 1001 is collected only is an example, and it only is for ' format and content of VoWLAN Metrics Report Block ' is complementary with the report blocks 8 of redetermination above that example is lifted in this place.One with ordinary skill in the art would appreciate that in the concrete application that the network related information of this WLAN (wireless local area network) that gathering-device 1001 is collected can also comprise other guide, for simplicity's sake, does not give unnecessary details at this.
Gathering-device 1001 has been collected the network related information of this WLAN (wireless local area network) in the predetermined conversation period after, according to the report blocks 8 of redetermination above ' format and content of VoWLAN Metrics ReportBlock ', with collect should be in predetermined conversation period network related information of this WLAN (wireless local area network) form the RTCP Real-time Transport Control Protocol extended report as a part of content in the RTCP Real-time Transport Control Protocol extended report with all the other information.
Behind end of conversation, the generating apparatus 1002 in the extraction element 100 in the user terminal 10 generates service quality report (QoSreport) according to this RTCP Real-time Transport Control Protocol extended report.
Then, the dispensing device 1003 in the extraction element 100 in the user terminal 10 is sent to the network equipment 20 by Session Initiation Protocol (session initiation protocol) with this service quality report.
Because comprise the network related information of this WLAN (wireless local area network) in this service quality report equally, therefore, the network equipment 20 can be determined the voice service quality under this radio local network environment according to the network related information of the WLAN (wireless local area network) in this service quality report.For example, determine the signal coverage varies of this WLAN (wireless local area network), the roaming condition of user terminal 10, and the data packet transceive situation of user terminal 10.
Concrete, as shown in Figure 5, the service quality report that the receiving system 2001 in the processing unit 200 in the network equipment 20 receives from user terminal 10.
Then, the definite device 2002 of first in the processing unit 200 in the network equipment 20 is determined the voice service quality under this radio local network environment according to this service quality report.
In one embodiment, first determines that the extraction element (for simplicity's sake, not shown among Fig. 5) in the device 2002 at first extracts the network related information of this WLAN (wireless local area network) from this service quality report.Then, in first definite device 2002 second determined device (for simplicity's sake, not shown among Fig. 5) according to the network related information of being extracted, determine the voice service quality under this radio local network environment, for example, determine the signal coverage varies of this WLAN (wireless local area network), the roaming condition of user terminal 10, and the data packet transceive situation of user terminal 10.
Technical support personnel or network manager can more effectively be diagnosed the problem place of this WLAN (wireless local area network) easilier and take relative counter measures according to the network related information of the WLAN (wireless local area network) in the service quality report.
For example, in the processing unit 200 first determines that device 2002 is according to the network related information in the service quality report, the relevant information of the received signal intensity of discovery certain WAP (wireless access point) that user terminal 10 roams in this predetermined conversation period, it also is the minimum value of received signal intensity, the maximum of received signal intensity, the standard variance of the mean value of received signal intensity and received signal intensity is not satisfactory, for example, the minimum value of the received signal intensity of user terminal 10 under this WAP (wireless access point) is lower than minimum threshold, and the mean value of received signal intensity is lower than minimum threshold etc.So, this first determines that device 2002 just can determine in the radio conditions of this predetermined this WAP (wireless access point) of disposing in the WLAN (wireless local area network) in the period conversed relatively poor.Technical support personnel or network manager just can know the deployed position of this WAP (wireless access point) by the MAC Address of this WAP (wireless access point), thereby take relative counter measures.
In one embodiment, user terminal 10 is the VoWLAN terminal equipment, VoWLAN mobile phone for example, PDA etc.
In one embodiment, the network equipment 20 is the voice quality manager.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and under the situation that does not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, therefore is intended to include in the present invention dropping on the implication that is equal to important document of claim and all changes in the scope.Any Reference numeral in the claim should be considered as limit related claim.In addition, obviously other unit or step do not got rid of in " comprising " speech, and odd number is not got rid of plural number.A plurality of unit of stating in system's claim or device also can be realized by software or hardware by a unit or device.The first, the second word such as grade is used for representing title, and does not represent any specific order.
Claims (14)
1. a method that is used for providing to the network equipment service quality report in the user terminal of wlan voice communication is characterized in that, said method comprising the steps of:
A. in the predetermined conversation period, the network related information of collecting described WLAN (wireless local area network) is to generate the RTCP Real-time Transport Control Protocol extended report;
B. behind end of conversation,, generate described service quality report according to described RTCP Real-time Transport Control Protocol extended report;
C. described service quality report is sent to the described network equipment.
2. method according to claim 1 is characterized in that, described step c also comprises: by session initiation protocol described service quality report is sent to the network equipment.
3. method according to claim 1 is characterized in that, the network related information of described WLAN (wireless local area network) comprises:
-in this predetermined conversation period, the number of times that this user terminal is roamed between WAP (wireless access point);
-in this predetermined conversation period, the MAC Address of each WAP (wireless access point) that this user terminal roams into;
-in this predetermined conversation period, the minimum value of the received signal intensity of each WAP (wireless access point) that this user terminal roams into;
-in this predetermined conversation period, the maximum of the received signal intensity of each WAP (wireless access point) that this user terminal roams into;
-in this predetermined conversation period, the mean value of the received signal intensity of each WAP (wireless access point) that this user terminal roams into;
-in this predetermined conversation period, the standard variance of the received signal intensity of each WAP (wireless access point) that this user terminal roams into;
-in this predetermined conversation period, this user terminal sends the retransmission rate of RTP packet;
-in this predetermined conversation period, this user terminal receives the heavy yield of RTP packet.
4. a method that is used to handle in the network equipment of wlan voice communication from the service quality report of user terminal is characterized in that, said method comprising the steps of:
I. receive service quality report from described user terminal;
Ii. according to described service quality report, determine the voice service quality under the described radio local network environment.
5. method according to claim 4 is characterized in that, described step I i may further comprise the steps:
-the network related information of the described WLAN (wireless local area network) of extraction from described service quality report;
-according to the network related information of being extracted, determine the voice service quality under the described radio local network environment.
6. method according to claim 4 is characterized in that, the network related information of described WLAN (wireless local area network) comprises:
-in the predetermined conversation period, the number of times that described user terminal is roamed between WAP (wireless access point);
-in the predetermined conversation period, the MAC Address of each WAP (wireless access point) that described user terminal roams into;
-in the predetermined conversation period, the minimum value of the received signal intensity of each WAP (wireless access point) that described user terminal roams into;
-in the predetermined conversation period, the maximum of the received signal intensity of each WAP (wireless access point) that described user terminal roams into;
-in the predetermined conversation period, the mean value of the received signal intensity of each WAP (wireless access point) that described user terminal roams into;
-in the predetermined conversation period, the standard variance of the received signal intensity of each WAP (wireless access point) that described user terminal roams into;
-in the predetermined conversation period, described user terminal sends the retransmission rate of RTP packet;
-in the predetermined conversation period, described user terminal receives the heavy yield of RTP packet.
7. method according to claim 4, it is characterized in that, the step of the voice service quality under described definite described radio local network environment comprises the signal coverage varies of determining described WLAN (wireless local area network), determines the data packet transceive situation of roaming condition and definite described user terminal of described user terminal.
8. a generator that is used for providing to the network equipment service quality report in the user terminal of wlan voice communication is characterized in that, described generator comprises:
Gathering-device was used in the predetermined conversation period, and the network related information of collecting described WLAN (wireless local area network) is to generate the RTCP Real-time Transport Control Protocol extended report;
Generating apparatus is used for behind end of conversation, according to described RTCP Real-time Transport Control Protocol extended report, generates described service quality report;
Dispensing device is used for described service quality report is sent to the described network equipment.
9. generator according to claim 8 is characterized in that, described dispensing device also is used for: by session initiation protocol described service quality report is sent to the network equipment.
10. generator according to claim 8 is characterized in that, the network related information of described WLAN (wireless local area network) comprises:
-in this predetermined conversation period, the number of times that this user terminal is roamed between WAP (wireless access point);
-in this predetermined conversation period, the MAC Address of each WAP (wireless access point) that this user terminal roams into;
-in this predetermined conversation period, the minimum value of the received signal intensity of each WAP (wireless access point) that this user terminal roams into;
-in this predetermined conversation period, the maximum of the received signal intensity of each WAP (wireless access point) that this user terminal roams into;
-in this predetermined conversation period, the mean value of the received signal intensity of each WAP (wireless access point) that this user terminal roams into;
-in this predetermined conversation period, the standard variance of the received signal intensity of each WAP (wireless access point) that this user terminal roams into;
-in this predetermined conversation period, this user terminal sends the retransmission rate of RTP packet;
-in this predetermined conversation period, this user terminal receives the heavy yield of RTP packet.
11. a processing unit that is used to handle in the network equipment of wlan voice communication from the service quality report of user terminal is characterized in that described processing unit comprises:
Receiving system is used to receive the service quality report from described user terminal;
First determines device, is used for according to described service quality report, determines the voice service quality under the described radio local network environment.
12. processing unit according to claim 11 is characterized in that, described first determines that device comprises:
Extraction element is used for from the network related information of the described WLAN (wireless local area network) of described service quality report extraction;
Second determines device, is used for according to the network related information of being extracted, and determines the voice service quality under the described radio local network environment.
13. processing unit according to claim 11 is characterized in that, the network related information of described WLAN (wireless local area network) comprises:
-in the predetermined conversation period, the number of times that described user terminal is roamed between WAP (wireless access point);
-in the predetermined conversation period, the MAC Address of each WAP (wireless access point) that described user terminal roams into;
-in the predetermined conversation period, the minimum value of the received signal intensity of each WAP (wireless access point) that described user terminal roams into;
-in the predetermined conversation period, the maximum of the received signal intensity of each WAP (wireless access point) that described user terminal roams into;
-in the predetermined conversation period, the mean value of the received signal intensity of each WAP (wireless access point) that described user terminal roams into;
-in the predetermined conversation period, the standard variance of the received signal intensity of each WAP (wireless access point) that described user terminal roams into;
-in the predetermined conversation period, described user terminal sends the retransmission rate of RTP packet;
-in the predetermined conversation period, described user terminal receives the heavy yield of RTP packet.
14. processing unit according to claim 11, it is characterized in that, described first determines that device also is used for according to described service quality report, determine the signal coverage varies of described WLAN (wireless local area network), determine the data packet transceive situation of roaming condition and definite described user terminal of described user terminal.
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