CN1728620A - Method for transmitting real time operation in CDMA system - Google Patents
Method for transmitting real time operation in CDMA system Download PDFInfo
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- CN1728620A CN1728620A CNA2004100702335A CN200410070233A CN1728620A CN 1728620 A CN1728620 A CN 1728620A CN A2004100702335 A CNA2004100702335 A CN A2004100702335A CN 200410070233 A CN200410070233 A CN 200410070233A CN 1728620 A CN1728620 A CN 1728620A
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Abstract
The method includes steps: when building service in real time, base station system sends message of channel assignment to mobile user terminal; based on the message of channel assignment, mobile user terminal builds service channel; starting up transaction negotiation with content of negotiation as operation parameters in wireless link protocol; based on result of the said negotiation, the method realizes non-retransmission in transaction channel when real time transaction is transmitted. The invention reduces time delay of real time transaction caused by RLP retransmission.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of method of transmitting real time operation in CDMA system.
Background technology
Development along with computer technology, Fibre Optical Communication Technology, digital technology, switching technology and voice compression technique, the trend that merges has appearred in speech network and data network, produce VoIP (the Voice Over InternetProtocol) networking telephone, satisfied the demand that people converse in real time.So-called VoIP is to be transmission platform with the IP packet switching network, to the voice signal of simulation compress, a series of special processing such as packing, make it to adopt connectionless UDP (user datagram protocol) agreement to be transmitted.VoIP and traditional comparing based on Circuit-switched telephone network, use TCP/IP (TCP) as host-host protocol, utilize existing network technology that voice are focused on the IP network, the unified IP technology that adopts, make voice-and-data on same circuit, adopt the Multiplexing Technology transmission, thereby improved the line bandwidth utilance greatly.
Along with VoIP occupies increasing proportion in the Internet types of applications, the problem that its service quality guarantees is also paid close attention to by industry day by day.Circuit Switching Network mainly refers to PSTN (public switched telephone network) net that the user inserts and wireless communication networks etc., finishes the signaling transfer point of user's voice transmission and call signaling.VoIP is typical real-time service, and is particularly close with the contact of QoS (service quality), for QoS very high requirement arranged.The user is when using the VoIP business, and what be concerned about most is exactly the voice quality problem of conversation.But present VoIP lacks QoS to be guaranteed.
Circuit Switching Network to the influence of VoIP QoS mainly from two aspects: the processing delay of Circuit Switching Network and Circuit Switching Network cooperate with signaling between the gateway.Usually, provide QoS (service quality) to guarantee that mechanism reduces the influence to the VoIP QoS by Circuit Switching Network self.
The cdma mobile communication net is because its unit capacity is big, the high communication quality and be convenient to 3-G (Generation Three mobile communication system) upgrading the therefore positive important effect of play more and more in mobile communication system.Present cdma system, the same with GSM (global system for mobile communications) system, basically handling voice service, and flourish along with the Internet business, simple conversation can not have been satisfied user's requirement.A lot of users wish that mobile communication system can provide more function, and as entering Internet inquiry or transmission information, organize video conference, carry out remote diagnosis etc. by mobile phone when needed, this just requires cdma system that data service can be provided.Compare the characteristics that provide in cdma system that data service has that wireless coverage is big, operator's small investment, user can be taken into account multiple business such as voice-and-data with the mobile data network of specialty.
CDMA data service model is as shown in Figure 1:
Wherein, Um is the cdma wireless interface, and Ai is the interface between MSC (mobile switch) and the PSTN (public switched telephone network), and Pi is the interface between IWF (network interconnection unit) and the PPDN (Packet Data Network).The control unit of mobile data services both can be in BSC, also can be in MSC, and same, L interface can be between the BSC-IWF, also can be between the MSC-IWF, L interface has 3 passages, is respectively: signalling path is used for the control information of transmitting data service; The mobile data passage is used to transmit mobile pocket data business; The PSTN data channel is used for the data service of transfer circuit type, as asynchronous data, fax etc.
The call handling process of data service is shown in Fig. 2:
When calling is initiated by MS (travelling carriage), MS at first sends call request information (comprising business option) to BS (base station), undertaken distributing wireless channel behind customer location and the identity validation by BSC/MSC (base station controller/mobile switch), and send confirmation to MS.Initialization RLP (radio link protocol) then, LCP (LCP) layer carries out link initialization and makes each protocol synchronization, and IPCP (IP control protocol) arranges the IP address.After TCP/IP (transmission control protocol/Internet Protocol) is initialised, BSC or MSC give MS distributing IP address, then Modem (modulator-demodulator) instruction that keeps in advance in the MS adapter is transferred to BSC or MSC by protocol package, and wait for that IWF sends Modem and replys, if reply successfully, then can carry out corresponding data, services.
When calling is initiated by the fixed network user, at first carry out customer location and identity validation by BSC/MSC, send paging information to MS then, MS replys after receiving information.If MT (portable terminal) receives the information reminding from BS, MT sends the Modem ringing information to TE (terminal equipment), and TE replys repeat-back with Modem.Then, MT sends bind command to BS, and MT and BS enter the sub-state of talk, below the process that begins from the RLP initialization identical with the calling procedure of MS initiation.
In whole data handling procedure, IWF (network interconnection unit) mainly bears the task of 2 aspects: Traffic Channel synchronously; Adaptive with external network.
In the existing network system,, make the time delay of VoIP to be guaranteed because the QoS of CDMA system guarantees that mechanism is not perfect at present based on CDMA.In addition, be used for grouped data use RLP (Radio Link view) agreement on the air interface, this agreement is a kind of packet retransmissions present agreement, make and between MS (travelling carriage) and IWF, transmit user data reliably, guarantee that the error rate of grouped data on wireless network can approach fixed network, but the mechanism that should guarantee is the mechanism that a kind of time delay and delay variation increase for the VoIP business.Experimental results show that: VoIP is when the packet loss below 10%, can guarantee voice quality preferably, but the time delay of VoIP is greater than 500ms when above, just slowly exceeded the stand limit of people's ear to time delay, therefore how balance time delay and packet loss, making it satisfy the VoIP business better, is exactly an important issue.
Summary of the invention
The method that the purpose of this invention is to provide a kind of transmitting real time operation in CDMA system, to solve the problem that can't guarantee the real time business time delay in existing CDMA (code division multiple access) system, reduce because RLP (radio link protocol) retransmits the time delay of the real time business that causes.
For this reason, the invention provides following technical scheme:
A kind of method of transmitting real time operation in CDMA system comprises step:
A, when real time business is set up base station system to mobile subscriber terminal transmitting channel assignment message;
B, described mobile subscriber terminal are set up Traffic Channel according to described channel assignment message;
C, startup are the service negotiation of negotiate content to the radio link protocol operation parameter;
D, realize when transmitting described real time business that described Traffic Channel does not retransmit according to described negotiation result to the radio link protocol operation parameter.
The foundation of described real time business comprises:
Described mobile subscriber terminal is set up described real time business as caller; Perhaps
Described mobile subscriber terminal is set up described real time business as called.
Described steps A comprises:
The allowance mode parameter of A1, setting channel assignment message or Extended Channel Assignment Message;
A2, send to described mobile subscriber terminal and to comprise the channel assignment message or the Extended Channel Assignment Message of permitting mode parameter.
Described step B comprises:
B1, described mobile subscriber terminal obtain described allowance mode parameter;
B2, when described allowance mode parameter value is " 0 ", described mobile subscriber terminal utilizes the business configuration that defines in the default configuration to set up Traffic Channel;
B3, when described allowance mode parameter value is " 1 ", the described mobile subscriber terminal utilization beginning exhale or page response in the business configuration of business option definition set up Traffic Channel.
Described step C comprises:
C1, described mobile subscriber terminal and described base station system be mutual service request information on described Traffic Channel;
C2, obtain described Traffic Channel according to described service request information and whether retransmit requirement;
C3, whether retransmit requirement according to the described Traffic Channel of obtaining and send service response message to mutual the other side.
Described step C1 is specially:
C11, described mobile subscriber terminal start described service negotiation;
C12, send to described base station system and to comprise the service request information that Traffic Channel does not retransmit parameter.
Described step C1 is specially:
C11 ', described base station system start described service negotiation;
C12 ', send to described mobile subscriber terminal and to comprise the service request information that Traffic Channel does not retransmit parameter.
Described Traffic Channel comprises: forward traffic channel, reverse traffic channel.
Described step D comprises:
If described mutual the other side agrees described service negotiation, then described Traffic Channel does not retransmit;
If described mutual the other side disagrees with described service negotiation, then described mobile subscriber terminal adopts the method that does not send the negative response frame to realize that described forward traffic channel does not retransmit.
Described real time business comprises: voice service, multimedia service, stream business.
By above technical scheme provided by the invention as can be seen, when the present invention makes a call at portable terminal, start the service protocol merchant, in service request information, carry sign and do not carry out the professional RLP parameter that retransmits, by portable terminal and base station system this parameter is held consultation, if consult to pass through, the reverse packet data Traffic Channel does not retransmit before then can supporting to realize; If consult not pass through, then terminal can adopt the method that does not send NAK (negative response) frame, realizes that the forward packet data Traffic Channel does not retransmit.Like this, reduced the buffer memory that needs to retransmit and carry out effectively, and owing to retransmitted the obvious shake of the time delay that VoIP class business is brought.Utilize the present invention, also can further distinguish different terminal traffic types, initiate service negotiation, realize that Traffic Channel does not retransmit, and then strengthened the flexibility that the present invention realizes by network side by base station system.
Simultaneously, the present invention can also only realize on mobile terminal device that packet data traffic channel does not retransmit, and has improved the adaptability of VoIP business under the situation that the network equipment does not allow to change.
Description of drawings
Fig. 1 is a CDMA data service model;
Fig. 2 is the call handling process of data service in the cdma system;
Fig. 3 is the flow chart of the inventive method;
Fig. 4 is that travelling carriage is set up the message flow that speech business connects as caller;
Fig. 5 is that travelling carriage is as the called message flow of setting up the speech business connection.
Embodiment
When core of the present invention is that portable terminal and base station system are carried out the service protocol merchant, do not carry out the professional RLP parameter that retransmits by in service request information, carrying sign, by portable terminal and base station system this parameter is held consultation, if consult to pass through, the reverse packet data Traffic Channel does not retransmit before then can supporting to realize; If consult not pass through, then terminal can adopt the method that does not send NAK (negative response) frame, realizes that the forward packet data Traffic Channel does not retransmit.
The present technique field personnel know, WCDMA (Wideband Code Division Multiple Access (WCDMA))/CDMA2000 is a 3-G (Generation Three mobile communication system), adopted and the similar structure of second generation mobile communication system, on system configuration and function, comprised Radio Access Network (RAN) and core network (CN).Wherein, Radio Access Network is used to handle all and the wireless function associated that comprises the management of Radio Resource; Core network is responsible for the interior all voice calls of treatment system and is connected with data, and the exchange of realization and external network and route.
Core network is from being divided into two subsystems in logic: circuit commutative field (CS) and packet-switched domain (PS).Traditional circuit-switched service is handled in the CS territory, and each communication need take some resources and set up a special-purpose link, as speech business; Packet switching service is handled based on packet switching network in the PS territory, and signaling and data all are to transmit in Packet Based Network with data packet form, do not need to set up dedicated link, and each grouping all oneself is looked for route.
Different Business Nature differences, the quality of service QoS (service quality) of requirement is also different.Quality of service QoS can comprise following index: the error rate, delay, throughput, reliability and fail safe etc.For data service,, can be divided into: session service, stream class service, interactive service and backstage business according to the feature of QoS.Wherein, session and stream class service carrying real time business, mutual and backstage service bearer non-real-time service.
For voice service, we know that the factor that influences speech quality mainly contains: coding method, time delay, delay variation, packet loss, bit error, protocol processes.In IP-based cdma system, can speech quality be described with parameters such as service availability, delay, variable delay, throughput, packet loss.
Therefore from user's demand and system design goal, the quality of service requirement of speech packet there is the following aspects:
(1) to the quality assurance of speech packet time delay.
It is 300ms that the call voice transmission comes and goes maximum delay, and the 150ms One Way Delay is an acceptable in other words.
(2) reduce thrashing and time delay.
With the base station portion is example, following situation can occur: the Frame that sends from same MT (travelling carriage) is uniform, because the inequality of IP network traffic carrying capacity, after the different sectors or different B TS arrival BSC (base station controller) via BTS (base station system), the time interval that they arrive BSC then no longer is even interval, and may frame losing, it seems from this side of BSC so thrashing just to occur.This problem can have influence on the process of normal talking, solves badly, can cause the interrupted or distortion of speech.
(3) improve speech quality.
For VoIP class business,, and not high especially for the sensitivity of packet loss because its sensitivity to time delay and delay variation is higher.The present technique field personnel know, RLP (radio link protocol) agreement is a kind of packet retransmissions present agreement, and promptly when the recipient required the retransmission of lost Frame, emission side retransmitted this Frame that exists in the buffer.Execution RLP agreement makes and transmit user data reliably between MS and base station system, guarantee that the error rate of grouped data on wireless network can approach fixed network, but the mechanism that should guarantee is for the VoIP business, be the mechanism that a kind of time delay and delay variation increase, RLP carries out buffering can bring 1 to 2 second stand-by period with repeating transmission.Therefore, at this class business, on cdma network, realize that RLP does not retransmit the time delay and the time delay shake that will reduce the VoIP business effectively.
In cdma system, support terminal and internetwork service negotiation, promptly at the beginning of communication link was set up, travelling carriage and base station disposed the business configuration of holding consultation and determining communication link with final with regard to corresponding business.Service negotiation is directly connected to the business configuration parameter of communication link, and quality of service is had direct influence.So-called business configuration is meant the set of base station and the optional link configuration of travelling carriage.Base station and travelling carriage adopt in the set the identical configuration of a cover to construct and decompose traffic channel frame, finish the mutual of forward link and reverse link traffic channel frame.The business configuration parameter comprises negotiable and not negotiable two kinds of parameters.Negotiable parameter comprises: preceding/the inverse multiplexing project; Before/the reverse traffic channel configuration; Before/reverse traffic channel speed; Business option connection etc.Before/the inverse multiplexing project determine business datum pack into before/mode of reverse traffic channel frame.Radio configuration (RC) scheme and other required attributes of preceding/reverse traffic channel are determined in preceding/reverse traffic channel configuration.Preceding/reverse traffic channel transmission rate is determined the transmission rate of preceding/reverse traffic channel frame.Business option connects determines type of service and the mode of operation on Traffic Channel.
The process of service negotiation is briefly described below:
Travelling carriage can be asked a business configuration that is associated with business option, the also business configuration that can please look for novelty in the course of work of Traffic Channel when making a call.Business configuration of being asked and original business configuration can greatly differ from each other, also can be very nearly the same.
If the business configuration that travelling carriage is asked is acceptable for the base station, they just bring into use new business configuration so.Otherwise the base station can be refused this request or be proposed the business configuration of an alternative usefulness.
If the base station proposes to substitute the business configuration of usefulness, this business configuration can be accepted or refuse to travelling carriage as the case may be, perhaps reintroduce another business configuration request, to the last the business configuration that can accept is mutually found in travelling carriage and base station, perhaps any one party is refused the business configuration that the other side asked in travelling carriage and the base station, and negotiations process promptly finishes.
Similarly, a business configuration that is associated with business option, the also business configuration that can please look for novelty can be asked in the base station in the course of work of Traffic Channel when mobile paging station.Its negotiations process as mentioned above.That is to say that in calling procedure, service negotiation can initiatively be initiated in the base station, travelling carriage also can initiatively be initiated service negotiation.
Service negotiation mechanism is a kind of QoS mechanism in essence, and why base station and travelling carriage are in order to improve quality of service by the basic reason that Signalling exchange is selected suitable business configuration.
Service negotiation has following effect to the control of quality of service:
(1) base station requires travelling carriage to use certain business option and relevant business configuration when mobile paging station, and travelling carriage may not supported this business configuration, if do not have service negotiation mechanism, travelling carriage just can't to connect with the base station, causes call failure.
(2) soft handover may take place in travelling carriage in conversation, after the control of travelling carriage is transferred to new base station, new base station may require travelling carriage to use another kind of business configuration, if do not carry out service negotiation, travelling carriage continues to call out with regard to being able to this business configuration to " being not suitable for " with regard to the new base station, and the possibility of call drop has just increased greatly like this.
(3) for Packet Service, message transmission rate is closely-related with the Walsh code channel resource, the higher short Walsh sign indicating number of rate requirement, that is two-forty takies more code channel resource.Because the speed of complement channel is immutable, taking also not of Walsh sign indicating number can be automatically reduces with the minimizing of data volume, thereby when no lot of data can be transmitted, will cause the waste of resource, may cause calling newly can use access failure because of No Assets.In order to save resource, when the data volume that need transmit when travelling carriage was far smaller than the code channel resource that has obtained, its can initiate to consult to the base station, and request reduces the resource of being distributed.
(4) similar, the data volume that need transmit when travelling carriage increases suddenly, and when the code channel resource that is distributed can not be satisfied the demand, it also can initiate service negotiation to the base station, to obtain more resources.
(5), hold more user for the base station as far as possible.If distribute bigger code channel resource for certain travelling carriage, there are a large amount of new travelling carriages to attempt to insert again, may refuse new the calling owing to code channel resource is not enough.This moment, this travelling carriage used lower speed rates just can regain some code channel resources if the request of service negotiation mechanism is adopted in the base station, in order to admit new calling.
The present invention is exactly not carry out the professional RLP parameter that retransmits by carry sign in service request information when MS and BSS (base station system) carry out the service protocol merchant, by portable terminal and base station system this parameter is held consultation and realizes what Traffic Channel did not retransmit.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
With reference to Fig. 3, Fig. 3 is the flow chart of the inventive method, may further comprise the steps:
Step 301: send real time business and set up request.
Described real time business comprises: voice service, multimedia service, stream business.
Can be that mobile subscriber terminal is set up real time business during as caller, also can be mobile subscriber terminal sets up real time business when called.
When mobile subscriber terminal is set up real time business as caller, at first send initial call message by mobile phone users, comprise in this message: parameters such as business option, Multiplex Option, radio configuration, base station system is responded acknowledge message after receiving this message; Simultaneously, base station system sends the configuration admin service request message to MSC, and MSC receives back response assignment request message.
When mobile subscriber terminal when setting up real time business, sends beep-page message by base station system to mobile subscriber terminal as called, mobile subscriber terminal is received loopback page-response message after this message, and base station system is responded acknowledge message after receiving this message; Simultaneously, base station system sends page-response message to MSC, and MSC receives back response assignment request message.
Step 302: base station system is set the allowance pattern GRANTED_MODE parameter of channel assignment message or Extended Channel Assignment Message, the business configuration pattern that this parametric representation allows, when the GRANTED_MODE parameter value is " 0 ", the business configuration that expression requires mobile subscriber terminal to utilize and defines in the default configuration is set up Traffic Channel, and requires mobile subscriber terminal to initiate service negotiation; When the GRANTED_MODE parameter value is " 1 ", expression require mobile subscriber terminal utilization beginning exhale or page response in the business configuration of business option definition set up Traffic Channel, and require mobile subscriber terminal to initiate service negotiation.
Step 303: send channel assignment message or the Extended Channel Assignment Message that comprises the GRANTED_MODE parameter to mobile subscriber terminal.
Step 304: mobile subscriber terminal obtains the GRANTED_MODE parameter in channel assignment message or the Extended Channel Assignment Message.
Step 305: set up Traffic Channel according to the GRANTED_MODE parameter, described Traffic Channel comprises forward traffic channel and reverse traffic channel.
When the GRANTED_MODE parameter value was " 0 ", mobile subscriber terminal utilized the business configuration that defines in the default configuration to set up Traffic Channel; When the GRANTED_MODE parameter value is " 1 ", mobile subscriber terminal utilization beginning exhale or page response in the business configuration of business option definition set up Traffic Channel.
Step 306: starting the radio link protocol operation parameter is the service negotiation of negotiate content.
This service negotiation can be started by mobile subscriber terminal, and process is as follows:
(1) mobile subscriber terminal sends to base station system and comprises the service request information that Traffic Channel does not retransmit parameter;
(2) base station system is obtained Traffic Channel according to service request information and whether is retransmitted requirement;
(3) comprise the service response message of whether agreeing described consultation parameter to the mobile subscriber terminal transmission.This service negotiation also can be started by base station system, and process is as follows:
(1) base station system sends to mobile subscriber terminal and comprises the service request information that Traffic Channel does not retransmit parameter;
(2) mobile subscriber terminal obtains Traffic Channel according to service request information and whether retransmits requirement;
(3) comprise the service response message of whether agreeing described consultation parameter to the base station system transmission.
Step 307: realize that Traffic Channel does not retransmit when transmitting real time business according to negotiation result to the radio link protocol operation parameter.Be specially:
If mutual the other side agrees described service negotiation, then Traffic Channel does not retransmit;
If mutual the other side disagrees with described service negotiation, then mobile subscriber terminal adopts the method that does not send the negative response frame to realize that forward traffic channel does not retransmit.
Fig. 4 shows and utilizes the inventive method MS to set up the message flow that speech business connects as caller, and in this flow process, the service negotiation process between MS and the BS is started by MS.
Wherein, MS is a travelling carriage, and BS is the base station, and MSC is a mobile switching centre.
1, MS sends Origination Message (initial call message) to BS;
2, BS responds BS Ack Order (base station acknowledge message) message to MS, sends CM Service Request (configuration admin service request) message to MSC simultaneously;
3, MSC sends Assignment Request (assignment request) message to BS;
4, after BS receives Assignment Request message, send Channel AssignmentMessage (channel assignment message) to MS;
5, MS sets up Traffic Channel according to Channel Assignment Message message, sends TCH Preamble (professional leading) message to BS;
6, BS is to MS loopback BS Ack Order (base station acknowledge message);
7, same, MS also will be to BS loopback MS Ack Order (travelling carriage acknowledge message);
8, start service negotiation by MS, send Service Request Message (business request information), in this message, carry Traffic Channel and do not retransmit the parameter indication to BS;
9, BS responds to MS and comprises the Service Response Message (service response message) that whether agrees this negotiation parameter;
10, send Service ConnectMessage (professional connection message) according to Service Response Message to MS by BS;
11, after MS receives above-mentioned message, set up professional the connection, after professional connection is finished, send Service Connect Complete Message (the professional connection finished message) to BS;
12, after BS receives Service Connect Complete Message, send AssignmentComplete (assignment is finished) message to MSC.
In above-mentioned message interaction process, service negotiation is initiated by portable terminal, because portable terminal itself can be discerned the type of service of oneself, therefore, can adapt at special occasions, under the situation that does not allow to change such as the network equipment, only on terminal, make amendment and to realize not retransmitting of Packet data service, realize simply, made things convenient for professional carrying out simultaneously.
Fig. 5 shows and utilizes the inventive method MS as the called message flow of setting up the paging service connection, and in this flow process, the service negotiation process between MS and the BS is started by BS.
Wherein, MS is a travelling carriage, and BS is the base station, and MSC is a mobile switching centre.
1, MS sends Page Response Message (page-response message) to BS;
2, BS responds BS Ack Order (base station acknowledge message) message to MS, sends Paging Response (page response) message to MSC simultaneously;
3, MSC sends Assignment Request (assignment request) message to BS;
4, after BS receives Assignment Request message, send Channel AssignmentMessage (channel assignment message) to MS;
5, MS sets up Traffic Channel according to Channel Assignment Message message, sends TCH Preamble (professional leading) message to BS;
6, BS is to MS loopback BS Ack Order (base station acknowledge message);
7, same, MS also will be to BS loopback MS Ack Order (travelling carriage acknowledge message);
8, start service negotiation by BS, send Service Request Message (business request information), in this message, carry Traffic Channel and do not retransmit the parameter indication to MS;
9, MS responds to BS and comprises the Service Response Message (service response message) that whether agrees this negotiation parameter;
10, send Service ConnectMessage (professional connection message) according to Service Response Message to MS by BS;
11, after MS receives above-mentioned message, set up professional the connection, after professional connection is finished, send Service Connect Complete Message (the professional connection finished message) to BS;
12, after BS receives Service Connect Complete Message, send AssignmentComplete (assignment is finished) message to MSC.
In above-mentioned message interaction process, service negotiation is initiated by base station system, this carries out registration recognition to the business of each portable terminal in advance with regard to needing base station system, when the portable terminal of paging is the voip user, initiate service negotiation by base station system, make amendment at network side and realize not retransmitting of Packet data service.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (10)
1, a kind of method of transmitting real time operation in CDMA system is characterized in that, described method comprises step:
A, when real time business is set up base station system to mobile subscriber terminal transmitting channel assignment message;
B, described mobile subscriber terminal are set up Traffic Channel according to described channel assignment message;
C, startup are the service negotiation of negotiate content to the radio link protocol operation parameter;
D, realize when transmitting described real time business that described Traffic Channel does not retransmit according to described negotiation result to the radio link protocol operation parameter.
2, the method for transmitting real time operation in CDMA system according to claim 1 is characterized in that, the foundation of described real time business comprises:
Described mobile subscriber terminal is set up described real time business as caller; Perhaps
Described mobile subscriber terminal is set up described real time business as called.
3, the method for transmitting real time operation in CDMA system according to claim 1 and 2 is characterized in that, described steps A comprises:
The allowance mode parameter of A1, setting channel assignment message or Extended Channel Assignment Message;
A2, send to described mobile subscriber terminal and to comprise the channel assignment message or the Extended Channel Assignment Message of permitting mode parameter.
4, the method for transmitting real time operation in CDMA system according to claim 3 is characterized in that, described step B comprises:
B1, described mobile subscriber terminal obtain described allowance mode parameter;
B2, when described allowance mode parameter value is " 0 ", described mobile subscriber terminal utilizes the business configuration that defines in the default configuration to set up Traffic Channel;
B3, when described allowance mode parameter value is " 1 ", the described mobile subscriber terminal utilization beginning exhale or page response in the business configuration of business option definition set up Traffic Channel.
5, the method for transmitting real time operation in CDMA system according to claim 1 is characterized in that, described step C comprises:
C1, described mobile subscriber terminal and described base station system be mutual service request information on described Traffic Channel;
C2, obtain described Traffic Channel according to described service request information and whether retransmit requirement;
C3, whether retransmit requirement according to the described Traffic Channel of obtaining and send service response message to mutual the other side.
6, the method for transmitting real time operation in CDMA system according to claim 5 is characterized in that, described step C1 is specially:
C11, described mobile subscriber terminal start described service negotiation;
C12, send to described base station system and to comprise the service request information that Traffic Channel does not retransmit parameter.
7, the method for transmitting real time operation in CDMA system according to claim 5 is characterized in that, described step C1 is specially:
C11 ', described base station system start described service negotiation;
C12 ', send to described mobile subscriber terminal and to comprise the service request information that Traffic Channel does not retransmit parameter.
8, the method for transmitting real time operation in CDMA system according to claim 5 is characterized in that, described Traffic Channel comprises: forward traffic channel, reverse traffic channel.
9, the method for transmitting real time operation in CDMA system according to claim 8 is characterized in that, described step D comprises:
If described mutual the other side agrees described service negotiation, then described Traffic Channel does not retransmit;
If described mutual the other side disagrees with described service negotiation, then described mobile subscriber terminal adopts the method that does not send the negative response frame to realize that described forward traffic channel does not retransmit.
10, the method for transmitting real time operation in CDMA system according to claim 1 is characterized in that, described real time business comprises: voice service, multimedia service, stream business.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1905562B (en) * | 2006-08-18 | 2010-07-21 | 杭州华三通信技术有限公司 | Method for determining link protocol on demand of edge device serial port |
| CN101431773B (en) * | 2007-11-05 | 2011-04-20 | 华为技术有限公司 | Method and apparatus for terminal physical layer handling capacity limit negotiation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1905562B (en) * | 2006-08-18 | 2010-07-21 | 杭州华三通信技术有限公司 | Method for determining link protocol on demand of edge device serial port |
| CN101431773B (en) * | 2007-11-05 | 2011-04-20 | 华为技术有限公司 | Method and apparatus for terminal physical layer handling capacity limit negotiation |
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