CN101123471A - Processing method for bandwidth varying communication addressing data - Google Patents
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Abstract
The present invention discloses a variable bandwidth communication addressing data processing method. A one-to-one corresponding relationship from the logical address to the physical address between devices is first established; the received bandwith configuration request is parsed; before starting a communication service, a data buffer is preallocated, the data field indexes of an allocation queue are defined according to the predefined bandwidth value, a message sending queue and a message receiving queue are established, and the message elements in the queues are respectively described as a message sending unit and a message receiving unit; the messages waiting for being sent and the messages needing to be resent are added in by the sending control part of the device by establishing and maintaining a sending circle message queue; the polling sending control part of the device manages all the link configuration items and starts the sending process ordinally; and the polling receiving control part of the device ordinally controls the received signal units by means of reverse parsing and sends the message units in the correct order to the service application layer. The present invention increases the efficiency of communication processing.
Description
Technical field
The present invention relates to the communication bandwidth communication addressing data processing technique in voice or data communication field, relate in particular to the communication addressing data processing method under a kind of bandwidth varying.
Background technology
In the legacy circuit-switched networks network, operator must support the application of different technical needs and existing 2G/2.5G and 3G business simultaneously.Face new challenges from the transplanting of 2G circuit-switched network (TDM) to 3G packet switching network (IP).Particularly operator must make balance to access platform cost, applicability and the availability selected, increases requirement with the bandwidth capacity that satisfies expection, and reduces the complexity of voice-and-data UNE.
Bandwidth capacity increase business is mainly used in packet switching network (PSN) network, can be the open following four kinds of grades of service of user: constant bit rate (CBR) business, real-time variable bit rate (RT-VBR) business, Non-Real Time Variable Bit Rate (NRT-VBR), non-limiting bit rate (UBR) business.Though prior art also has realization at circuit-switched network, as the MTP2 layer of agreement described in the Q.703 signaling link processing capacity of compatible arrowband 64K link, N*64K link and 2M link simultaneously.But protocol hierarchy is strict, implements relative complex.As shown in Figure 1, the both sides of communication addressing data processing comprise a transmit leg (A end) and a recipient (B end), and the communication network between them.Existing processing method for bandwidth varying communication addressing data generally all is based on the processing of IP packet switch network service stream, as describing few to the realization of circuit-switched network, and mainly be fixed-bandwidth constant bit rate (CBR) business configuration, there is following defective: the dynamic-configuration demand that can't adapt to the user, the adaptive ability deficiency has influenced the realization of professional expansion and new business.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of processing method for bandwidth varying communication addressing data, is easy to realize that communication addressing data processing behind the dynamic-configuration communication bandwidth has solved the problem of the communication addressing data processing complex that change bandwidth that prior art exists brings.
For solving the problems of the technologies described above, the invention provides a kind of processing method for bandwidth varying communication addressing data, the communication addressing data processing after circuit-switched network is realized the dynamic-configuration communication bandwidth comprises following parallel step:
(1) physical features and the logical implication of binding data receiver equipment and transmit leg equipment, logical address is to the one-to-one relationship of physical address between apparatus for establishing;
(2) bandwith configuration request that receives is resolved, if increase configuring request, then according to the configuring request item, divide buffer memory for every link, the distribution of specified data buffer memory is used; If link buffer district pointer address is returned or reclaimed to the deletion configuring request then according to the service marking of configuring request item;
(3) before starting communication service, preassignment one blocks of data buffering area, determine the data field pointer of distribution queue according to the value of predefine bandwidth, set up and send message queue and receive message queue that the message element in the formation is described as sending message elements respectively and receives message elements;
(4) by the transmission control section of equipment by setting up and safeguarding that one sends annular message queue and adds message to be sent and needs re-transmission, message is wherein deposited in order; By the transmission poll control part of the equipment link configuration items that administrative institute has of assigning to, in polling procedure, retrieve its physical address according to the logical address of equipment, inside has been existed the link of message, the process of transmitting of starting by sequence;
(5) the reception poll control section of equipment is by reverse resolution, get access to the logical address of equipment from physical address, and unit carries out sequential control to the received signal, and order proper messages unit is sent to service application layer.
The angle of slave unit feature of the present invention is set out, and has solved the data processing problem in the communication addressing in simple and clear mode, has improved the efficient of communication process, can be applicable to complicated bandwidth varying communication field.
Description of drawings
Fig. 1 is for supporting physical communication network environment schematic diagram of the present invention;
Fig. 2 is a bandwith configuration request resolution process embodiment process chart of the present invention;
Fig. 3 is according to the described configuration management schematic flow sheet of the embodiment of the invention;
Fig. 4 is the described bandwidth varying communication of an embodiment of the invention address data transmitting-receiving schematic flow sheet;
Fig. 5 is for being applied to communication field schematic diagram of the present invention.
Embodiment
In the bandwidth varying field, the present invention is implemented in communication layers to come description equipment with physical attribute feature (physical address) and logical attribute feature (logical address), and a kind of communication addressing data processing method in these two kinds of features is provided.Mainly comprise following a few part:
As shown in Figure 1, for supporting physical communication network environment schematic diagram of the present invention.The present invention can provide the means that detect the communication media connectedness, determines the physical mediums of communication connection reliability, when receiving bandwith configuration request, at first determines Circuit Switching Network's medium operating state.On communication media, connect bi-directional path, comprise downlink (A holds the B end) and uplink (B holds the A end) by the chip that continues.Send test massage by the chip that continues on communication media, test A end is connective with the B end.Collect mail number the correctness of test received signal data at the A of communication media end.If find to receive the data existing problems, then can send data at the two ends of switching equipment mutually and check on earth any end or which link problem to occur.
The present invention can also one group of module and interface that is used for communication bandwidth data configuration and parsing, finishes the data description of communication physical attribute to logical address.We are packaged into the User Defined api interface of standard with it when realizing, this interface is finished the two-way description of physical address to logical address, when configuration of executive communication band data and parsing, use this interface to describe the logical address of the attribute and the communication media of communication module; The interface that is used for communication bandwidth data configuration and parsing has mainly illustrated bandwidth varying scheduling data configuration and process of analysis.
In addition, the present invention also provides the algorithm that is used for the bandwidth varying communication data addressing and has sent and received the management method of message queue in message, is used for communication data addressing, queue management and management data and sends and receive formation.
The data processing method that is used for bandwidth varying communication addressing of the present invention, the main embodiment that adopts transmission and receive illustrates datarams allocation strategy and communication information data processing method and the communication addressing method in the communication process.
Before equipment is managed for configuration, we must set up a kind of description relation between equipment and data, the logical attribute of equipment is described, specific to communication equipment, then can simply be described as the corresponding relation of device id number (being logical address LA) and channel link or time slot (being physical address PhA).Below we are described below with specific embodiment:
Implementation step S1, as shown in Figure 1, the interface algorithm realization flow that the present invention resolves to logical implication (logical address) in conjunction with concrete physical features environment description equipment physical features (physical address) can be described below:
Suppose that the feature of giving device A (and equipment B) has 3, be respectively feature A (CharacterA, be called for short Ca), feature B, (Character B is called for short Cb) and feature C ((Character C is called for short Cc), then logical address can be described below to the algorithm of physical address: the maximum characteristic of defined feature A, feature B and feature C is respectively MaxA respectively, MaxB, MaxC.Then the search index of physical address can be calculated as follows:
PhA＝Ca*MaxA+Cb)*MaxB+Cc)*MaxC
When MaxA is 0, MaxB is 0, and MaxC is 1 o'clock, and then PhA=Cc promptly is a kind of the most special the simplest addressing system.
By the description of docking port algorithm, can realize the one-to-one relationship of apparatus logic address to physical address, can improve the efficient of the quick location addressing of communication layers.Because when in the face of a lot of equipment, will find this corresponding relation, and have a lot of equipment must on the data processing of communication layers, find this corresponding relation.
Implementation step S2 as shown in Figure 2, is bandwith configuration request resolution process embodiment process chart of the present invention:
After receiving bandwidth allocation request, at first see the type of request for allocation (REQ), belong to which kind of configuration item (as increasing or deletion), the enforcement of this step is that configuration management 10 realizes.Configuration management 10 sends configuring request REQ1 at first for equipment 30, and etc. ACK1 to be configured.Receive and send configuring request REQ2 just can for equipment 20 after acknowledging, and etc. the ACK2 that replys to be configured.To analyze in force if increase configuring request REQ and then enter step S2-1.
Step S2-1: if increase configuring request, the content of analysis configuration request item at first, the logical address feature of describing equipment in the configuration item is (as the main control end control word, controlled plant identity sign, affiliated communication type etc.), physical address feature (selecting suitable communication time slot, timeslot number, allocation position etc.) according to communication type.
Step S2-2: according to the configuring request item, the distribution of determination data buffer memory is used, and following mode is that every link is divided buffer memory.Big buffer area of application behind device start, this buffer area carries out block management based on the time slot of communication, that is to say that this block cache zoning is divided into the continuous independent memory block that uses, and each piece corresponds on the actual time slot that uses.Because comprised the number of the initial time slot of link and time slot binding in the configuration information of each bar link, so during the buffer memory of distribute links, the buffer memory of this link just can uniquely correspond in the continuous space in the big buffer area.
Step S2-3: after the preassignment of link core buffer, during new configuration change, new link can unique in this way definite buffer memory.Buffer memory when this mode has been avoided the link configuration change is application and release problem dynamically.Improved the efficient of real time execution.As shown in Figure 3, at this time need to manage an annular message queue 40, the pointed of this circle queue 40 is the core buffer 70 first locations of link application.Formation partly comprises: queue heads, rear of queue, queue message buffering area number and queue buffer pointer.Be the delivery order that guarantees that message sends, we compile to it for each message element 60 in the formation and go up sequence number, are called preceding paragraph sequence number FSN.
Step S2-4:,, otherwise reclaim link buffer district pointer address if use then return if the deletion configuring request is at first judged the service marking of configuring request item.But continuous preassignment buffer memory is constant.
Reach multiplexing purpose after guaranteeing like this to increase link.The formation that a kind of fairly simple processing method can only be managed this link is just passable.
In summary, as shown in Figure 3, for according to the described configuration management schematic flow sheet of the embodiment of the invention, at first be device initialize (step 301), initialization link buffering area (step 302) then, and initialization switching network part (step 303), receive configuring request (step 304), call Command Line Parsing, different configuring request is analyzed (step 305), by bandwidth benchmark initialize queue element (step 306), control TDM switching equipment (step 307) more then.
Enter step S3.
As shown in Figure 4, bandwidth varying communication address data transmitting-receiving schematic flow sheet of the present invention, as follows with the specific embodiment process description that sends and receive below:
Step S3-1: determine the algorithm that the distribution of bandwidth varying communication of the present invention data field is handled:
Before starting communication service, preassignment one blocks of data buffering area, its data buffer zone total length is calculated as follows:
T＝N*Q*M+4
Wherein T is a message-length in the buffering area, and N is the total channel number, and Q is a number of queues, and M is that every formation takies total bytes, and 4 byte representations are pressed the nybble polishing.
The maximum message flow is in the unit interval of the channel that then is scheduled:
W＝(n*MTU*SQ)
Wherein n is the number of channel that communication link takies.
MTU is a chain circuit message MTU in the channel
SQ takies byte number for each formation.
Wherein scope circle of n is between minimum threshold and maximum threshold.Depend on the configuration timeslot number after the user calculates according to data business volume.
So just can determine the data field pointer of distribution queue according to the value of predefine bandwidth
Each message of the fiducial value * of each channel width of P=takies byte number (MTU)
Above-mentioned steps S3-1 has determined queuing data district management algorithm and method.And set up transmission message queue 70 and received message queue 90, the message element in this formation can be described as sending message elements 60 respectively and receive message elements 80.
Step S3-2: in sending control module 40, need management to send annular message queue 40, the CONNECT message of first initiation link setup is not then joined in the message queue 40 of this link, can directly send.Design is that what consider to be added formation is message 60 to be sent like this, and needs to retransmit.
With reference to figure 5,, comprise that forward sequence number FSN and back are to sequence number BSN for being applied to communication field schematic diagram of the present invention.
Step S3-3: normal application layer messages is sent, when the link transmission flow begins, for every link (LINK) distributes one to send and the repeating transmission buffer area, but be used for preserving those message signal units that do not send as yet and sent the message signal unit that does not obtain affirmative acknowledgement (ACK) as yet.In link transmitting terminal, give new new forward sequence number FSN of distribution of messages that sends
Y, its value is than the FSN of the message that sent last time
xBig by 1, mould is M (determining the modulus of link according to the bandwidth benchmark of link), recycles the FSN value according to the sending order of message.
Step 3-4: the each operation when sending message all is that order is deposited, and deposits end and wants simultaneously mobile messaging queue for storing pointer backward.Message number in the message count field record formation in the message queue, when total message count is counted greater than the preassignment bandwidth, new message will be dropped.Remaining work is partly finished by sending poll.
Sending poll control section 40 can carry out in the transmission interface in real time, also will obtain carrying out in timing scan (sweep spacing can be provided with according to the system handles clock frequency) simultaneously.
Step 3-5 sends all link configuration items of poll control section 40 management, in polling procedure, retrieve its physical address PhA according to the logical implication C of equipment, retrieve as link No., the link that inside has been existed message, start process of transmitting, the first step is filled next message signal unit FSN earlier
NIf send successfully then with the FSN in the native window
LMove behind the delivery, be provided with simultaneously and send overtime timer T1.Sending the position moves after also.
Step 3-6: all unequal if the FSN of message signal unit that receives or Fill In Signal Unit and transmitting terminal are retransmitted the FSN of the message signal unit that all waits acknowledge in the buffer memory, then abandon this signal element and message signal unit following closely or Fill In Signal Unit.
Step 3-7: do not obtain affirmative acknowledgement (ACK), also notifying communication link layer fault if the message signal unit in the transmitting terminal buffer memory surpasses the T1 time.
Arrive this, transmission flow finishes substantially.Enter the invention process step S4.
Implementation step S4: as shown in Figure 4 and Figure 5.The embodiment that bandwidth varying communication addressing data processing message of the present invention receives flow process is described below
This reception repeating query module 50 is actually and has realized a reverse addressing process, and promptly physical address is to the communication addressing method of logical address.Certainly in addressing, also comprised the correcting data error processing capacity.
Step S4-1:, get access to the logical address of equipment from physical address by reverse resolution.
Step S4-2: carry out following processing by the signal element of error detection occurs to what slave unit B received.By FSN relatively (FSN of the signaling unit that receives and the FSN of the last correct Message Signal Unit that receives are compared) and connection device ID number (ID is described in the definition of equipment in database) relatively, finish sequential control to the signal element of reception.Wherein, the sequential control processing mode of dissimilar signal element is different.Therefore, the type that at first must come the judgment signal unit by T (TYPE) field of checking signal element.
Step S4-3: if receive order proper messages signal element BSN (back is to sequence number), just it is sent to service application layer, send affirmative acknowledgement to the opposite end simultaneously, this message signal unit of notice opposite end is accepted.
Step S4-4: if it is incorrect to detect the order of message signal unit or Fill In Signal Unit, then send Negative ACKnowledgement, require to retransmit the message signal unit of having lost to the opposite end.
Total the above, use the present invention with the physics of succinct description communication equipment and the relation of logical implication, by logical description, manage the efficient that improves communication process in conjunction with the data queue of configuration management and message elements to equipment.
Claims (10)
1. processing method for bandwidth varying communication addressing data, the communication addressing data processing after circuit-switched network is realized the dynamic-configuration communication bandwidth is characterized in that, comprises following parallel step:
(1) physical features and the logical implication of binding data receiver equipment and transmit leg equipment, logical address is to the one-to-one relationship of physical address between apparatus for establishing;
(2) bandwith configuration request that receives is resolved, if increase configuring request, then according to the configuring request item, divide buffer memory for every link, the distribution of specified data buffer memory is used; If link buffer district pointer address is returned or reclaimed to the deletion configuring request then according to the service marking of configuring request item;
(3) before starting communication service, preassignment one blocks of data buffering area, determine the data field pointer of distribution queue according to the value of predefine bandwidth, set up and send message queue and receive message queue that the message element in the formation is described as sending message elements respectively and receives message elements;
(4) by the transmission control section of equipment by setting up and safeguarding that one sends annular message queue and adds message to be sent and needs re-transmission, message is wherein deposited in order; By the transmission poll control part of the equipment link configuration items that administrative institute has of assigning to, in polling procedure, retrieve its physical address according to the logical address of equipment, inside has been existed the link of message, the process of transmitting of starting by sequence;
(5) the reception poll control section of equipment is by reverse resolution, get access to the logical address of equipment from physical address, and unit carries out sequential control to the received signal, and order proper messages unit is sent to service application layer.
2. the method for claim 1 is characterized in that, the logical implication of the described equipment of step (1) comprises the equipment identities sign; The physical features of described equipment comprises channel link or time slot.
3. the method for claim 1, it is characterized in that, for the described increase configuring request of step (2), when the distribution of specified data buffer memory is used, comprise: big buffer area of application behind device start, this buffer area is based on the time slot of communication, be divided into the continuous independent memory block that uses, each piece corresponds on the actual time slot that uses, initial time slot of the link that comprises in the configuration information according to each bar link and time slot binding number, when the distribute links buffer memory, in the unique continuous space that corresponds in the big buffer area of the buffer memory of this link.
4. the method for claim 1 is characterized in that, the length T=N*Q*M+4 of the described preallocated data buffer zone of step (3);
Wherein T is a message-length in the buffering area, and N is the total channel number, and Q is a number of queues, and M is that every formation takies total bytes, and 4 byte representations are pressed the nybble polishing.
5. the method for claim 1 is characterized in that, the annular message queue of the described transmission of step (4) comprises queue heads, rear of queue, queue message buffering area number and queue buffer pointer.
6. the method for claim 1 is characterized in that, does not comprise the CONNECT message of first initiation link setup in the annular message queue of the described transmission of step (4).
7. the method for claim 1, it is characterized in that, in the described step (4), when the link transmission flow begins, for one of every link assignment sends and the repeating transmission buffer area, but be used for preserving those message signal units that do not send as yet and sent the message signal unit that does not obtain affirmative acknowledgement as yet; In link transmitting terminal, give new new forward sequence number FSN of distribution of messages that sends
Y, its value is than the FSN of the message that sent last time
XBig by 1, and recycle the FSN value according to the sending order of message.
8. method as claimed in claim 5 is characterized in that, in the described step (4), the each operation when sending message all is that order is deposited, and deposits end and wants simultaneously mobile messaging queue for storing pointer backward; Message number in the message count field record formation in the message queue, when total message count is counted greater than the preassignment bandwidth, new message will be dropped.
9. method as claimed in claim 7 is characterized in that, in the described step (4), when the poll control section starts process of transmitting, at first fills the FSN of next message signal unit
NIf send successfully then with the FSN in the native window
LMove behind the delivery, be provided with simultaneously and send overtime timer T1, send the position and move after also.
10. method as claimed in claim 9 is characterized in that, in the described step (5), the FSN of the signaling unit that receives and the FSN of the last correct Message Signal Unit that receives is compared, and finishes the sequential control of unit to the received signal.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102833332A (en) * | 2012-08-23 | 2012-12-19 | 武汉烽火网络有限责任公司 | Distributed many-to-many equipment communication and management method |
| CN103186585A (en) * | 2011-12-29 | 2013-07-03 | 北京亿阳信通科技有限公司 | Queue processing method and device |
| US9094304B2 (en) | 2012-05-10 | 2015-07-28 | Cognex Corporation | Systems and methods for dynamically configuring communication data items |
| CN113296973A (en) * | 2020-07-20 | 2021-08-24 | 阿里巴巴集团控股有限公司 | Message processing method, message reading method, device and readable medium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10101552A1 (en) * | 2001-01-15 | 2002-07-25 | Infineon Technologies Ag | Cache memory and addressing method |
| US6684317B2 (en) * | 2001-12-21 | 2004-01-27 | Axiowave Networks, Inc. | Method of addressing sequential data packets from a plurality of input data line cards for shared memory storage and the like, and novel address generator therefor |
-
2006
- 2006-08-09 CN CN2006101042929A patent/CN101123471B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103186585A (en) * | 2011-12-29 | 2013-07-03 | 北京亿阳信通科技有限公司 | Queue processing method and device |
| US9094304B2 (en) | 2012-05-10 | 2015-07-28 | Cognex Corporation | Systems and methods for dynamically configuring communication data items |
| CN102833332A (en) * | 2012-08-23 | 2012-12-19 | 武汉烽火网络有限责任公司 | Distributed many-to-many equipment communication and management method |
| CN102833332B (en) * | 2012-08-23 | 2016-05-04 | 武汉烽火网络有限责任公司 | A kind of distributed multi-to-multi devices communicating and management method |
| CN113296973A (en) * | 2020-07-20 | 2021-08-24 | 阿里巴巴集团控股有限公司 | Message processing method, message reading method, device and readable medium |
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