CN115701188A - Time slot configuration method, time slot configuration device and computer readable storage medium - Google Patents
Time slot configuration method, time slot configuration device and computer readable storage medium Download PDFInfo
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Abstract
The invention discloses a time slot configuration method, a time slot configuration device and a computer readable storage medium.A first node sends a time slot configuration message containing time slot configuration content to a second node through a general communication channel GCC; the first node and the second node respond to CA handshake negotiation based on time slot adjustment request CR and time slot adjustment, or handshake negotiation is carried by GCC handshake, and the handshake negotiation process carries message characteristic values; when the handshake negotiation is completed, the first node sends an adjustment indication signal to the second node with the message characteristic value, so that the second node receives and recovers the service data according to the time slot configuration content in the time slot configuration message corresponding to the message characteristic value. The embodiment of the invention only needs to transmit the message characteristic value in the handshake negotiation process, so that the handshake negotiation process does not need to repeatedly transmit the time slot configuration content, the repeated transmission of the time slot configuration content is reduced, the transmission bandwidth and the time consumption for adjustment are saved, the time slot adjustment speed is accelerated, and the transmission reliability is greatly increased.
Description
Technical Field
The present invention relates to the field of time slot configuration technologies, and in particular, to a time slot configuration method, a time slot configuration apparatus, and a computer-readable storage medium.
Background
The client service is sent through the time slot, the transmission pipeline has a plurality of time slots, according to the bandwidth size of the client service, one client service can be carried and transmitted on one time slot, and also can be carried and transmitted on a plurality of time slots, specifically which time slot or time slots are used for transmitting the client service, and the method is realized through the time slot configuration function in the overhead field.
In the current scenario of transmitting fine-grained services by a high-rate pipeline, one high-rate pipeline is divided into a plurality of sub-slots to carry the fine-grained services, for example, in a flexible ethernet, a pipeline with a rate of 5Gbit/s can be divided into 480 sub-slots, the rate of each sub-slot is about 10Mbit/s, because the number of the sub-slots is large, when a large number of sub-slots need to be configured between sites, a traditional handshake negotiation mode is relied on, the transmission speed of time slot configuration information is slow, and the transmission process is unreliable, so that a method for efficiently transmitting the time slot configuration information and reliably realizing the time slot configuration is needed.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
Embodiments of the present invention provide a time slot configuration method, a time slot configuration apparatus, and a computer-readable storage medium, which can efficiently transmit time slot configuration information and reliably implement time slot configuration.
A first aspect of an embodiment of the present invention provides a time slot configuration method, which is applied to a first node, and includes:
transmitting a time slot configuration message containing time slot configuration content to the second node through a general communication channel GCC;
handshake negotiation with the second node based on the time slot adjustment request CR and the time slot adjustment response CA, or handshake negotiation with the second node through the GCC, wherein a handshake negotiation process carries a message characteristic value, and the message characteristic value is used for representing a time slot configuration message corresponding to the time slot configuration content;
and when the handshake negotiation is completed, sending an adjustment indication signal to the second node by carrying the message characteristic value, so that the second node receives and recovers the service data according to the time slot configuration content in the time slot configuration message corresponding to the message characteristic value.
A second aspect of the present invention provides a time slot configuration method, which is applied to a second node, and the time slot configuration method includes:
receiving a time slot configuration message which is sent by a first node and contains time slot configuration content through a general communication channel GCC;
handshake negotiation with the first node based on the time slot adjustment request CR and the time slot adjustment response CA, or handshake negotiation with the first node through the GCC, wherein a handshake negotiation process carries a message characteristic value, and the message characteristic value is used for representing a time slot configuration message corresponding to the time slot configuration content
And when the handshake negotiation is completed, receiving an adjustment indication signal which is sent by the first node and carries the message characteristic value, and receiving and recovering service data according to the time slot configuration content in the time slot configuration message corresponding to the message characteristic value.
A third aspect of the embodiments of the present invention provides a timeslot configuring apparatus, including at least one processor and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of time slot configuration of the first aspect or to perform the method of time slot configuration of the second aspect.
A fourth aspect of embodiments of the present invention provides a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the time slot configuration method according to the first aspect or perform the time slot configuration method according to the second aspect.
The time slot configuration method provided by the embodiment of the invention at least has the following beneficial effects: in the time slot adjusting process of the first node and the second node, the first node encapsulates all the time slots to be adjusted into a message, and transmits the time slots to be adjusted to the second node once, compared with the traditional handshake negotiation mode of transmitting a plurality of time slots for a plurality of times, the embodiment of the invention only needs to transmit the message characteristic value in the handshake negotiation process, and the message characteristic value bears the medium of handshake negotiation, so that the handshake negotiation process does not need to repeatedly transmit time slot configuration contents, the repeated transmission of the time slot configuration contents is reduced, the transmission bandwidth and the time consumption for adjustment are saved, the time slot adjusting speed is accelerated, and the transmission reliability is greatly increased.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a flowchart illustrating an overall method of a timeslot configuration method according to an embodiment of the present invention;
fig. 2 is a schematic process diagram of a basic unit frame carried by a 5G timeslot under the FlexE standard according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an ethernet packet frame format carrying timeslot configuration content according to an embodiment of the present invention;
fig. 4 is a schematic diagram of the configuration content of the bearer timeslot in the format of S block + D block + T block according to an embodiment of the present invention;
FIG. 5 is a diagram of a frame format bit definition provided by an embodiment of the present invention;
fig. 6 is a diagram of a bearer mode when a message feature value provided by an embodiment of the present invention refers to different contents;
fig. 7 is a flowchart of a method for performing handshake negotiation via CR and CA with reduced time slots according to an embodiment of the present invention;
fig. 8 is an information interaction diagram for handshake negotiation through CR and CA according to an embodiment of the present invention;
fig. 9 is a flowchart of a method for a first node to send an adjustment indication to a second node according to an embodiment of the present invention;
fig. 10 is a flowchart of a method for performing handshake negotiation through CR and CA when a time slot is increased according to an embodiment of the present invention;
fig. 11 is a flowchart of a handshake negotiation method via GCC according to an embodiment of the present invention;
fig. 12 is a flowchart of a method for a first node to send an adjustment indication to a second node according to an embodiment of the present invention;
FIG. 13 is a diagram of information interaction for handshake negotiation via GCC according to an embodiment of the present invention;
fig. 14 is a schematic structural connection diagram of a timeslot configuration device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
With the improvement of the speed of the ethernet transmission pipeline, the time slot configuration mode becomes more and more complex and cumbersome during the service transmission process between the nodes through the time slot, when a large number of time slots need to be adjusted, the time slot configuration content needs to be transmitted repeatedly for each handshake transmission between the nodes according to the traditional handshake negotiation mode, which results in the problems of long transmission time consumption and waste of transmission bandwidth. For example, in flexible ethernet, the FlexE protocol standard specification defines a minimum pipe for delivering client traffic as 5Gbit/s, and in order to meet the transmission requirement of small-granularity traffic, an operator divides a pipe with a rate of 5Gbit/s into 480 sub-slots, where the bandwidth of each sub-slot is about 10Mbit/s, and can carry client traffic with a rate of 10M or more, and in this case, if a large number of time slots are configured between an upstream node and a downstream node, the problem of slow handshake negotiation occurs.
Based on this, the embodiment of the present invention provides a timeslot configuration method, and referring to fig. 1, the timeslot configuration method includes, but is not limited to, the following steps S100, S200, S300, and S400.
Step S100, the first node sends a time slot configuration message containing time slot configuration content to the second node through a general communication channel GCC;
step S200, handshake negotiation is carried between the first node and the second node based on a time slot adjustment request CR and a time slot adjustment response CA, or handshake negotiation is carried out through GCC, a handshake negotiation process carries a message characteristic value, and the message characteristic value is used for representing a time slot configuration message corresponding to time slot configuration content;
step S300, when the handshake negotiation is completed, the first node sends an adjustment indication signal to the second node with the message characteristic value, so that the second node receives and recovers the service data according to the time slot configuration content in the time slot configuration message corresponding to the message characteristic value.
In the embodiment of the present invention, the first node and the second node are upstream and downstream nodes, and the following description takes the first node as an upstream node and the second node as a downstream node as an example, when time slot adjustment needs to be performed between the first node and the second node, the first node encapsulates the time slot configuration content into a message to obtain a time slot configuration message,
the embodiment of the invention is based on a flexible Ethernet scene, and referring to FIG. 2, a 5 Gbit/s-rate pipeline is divided into 480 sub-slots (sub-slots), and when each sub-slot bears customer service, 64B/66B coding is carried out on the customer service, so that a 66-bit code block is obtained. After encoding, each 8 66-bit code block is carried on one sub-slot in a group. Before carrying, each 66-bit code block is compressed into 65 bits (2-bit sync header bits are compressed into 1 bit), forming 8 65-bit code blocks. 24 groups of 8-bit code blocks are mapped in a basic unit frame as a whole, 20 basic unit frames form a multiframe, then are mapped into a time slot of a Flexe protocol to be sent out, and are transmitted to a remote destination device through a 5Gbit/s pipeline of the Flexe protocol.
During time slot configuration, 480 sub-time slots are in total in a multiframe, according to the condition of the bandwidth of the client service, one client service can be carried and transmitted on one sub-time slot, and can also be transmitted on a plurality of sub-time slots, and specifically which sub-time slot or sub-time slots are adopted to transmit the client service is realized through a time slot configuration function in an overhead field.
The negotiation handshake process of the invention is divided into two modes, the first mode is to complete handshake negotiation through the cooperation of CR, CA and time slot configuration messages, the first node sends time slot configuration contents to the second node through GCC, handshake negotiation is carried out through the characteristic values of messages carried by CR and CA, the handshake negotiation process does not need to carry time slot configuration contents, thereby accelerating the speed of the time slot configuration process and improving the reliability; the second is to complete handshake negotiation through a GCC channel, after the first node sends the time slot configuration content to the second node through the GCC, the second node returns a message characteristic value through the GCC, the first node completes handshake negotiation according to the message characteristic value, and similarly, the time slot configuration content does not need to be carried in the handshake negotiation process. The time slot configuration content related to the embodiment of the present invention refers to content related to time slot configuration, and generally includes overhead information and time slot information related to time slot configuration, and all the content related to time slot adjustment is encapsulated in a message manner and is transmitted to an opposite terminal device/node at one time.
The overhead information may include a message sequence number SQ, a client number client ID or a client name, a timeslot adjustment type parameter, and response information for handshake negotiation, which are specifically defined as follows:
message sequence number SQ: the sequence relation identification of the sent message, the serial number can be used as the message characteristic value of each message, and the first node and the second node determine which message is subjected to handshake negotiation during negotiation according to the message serial number. In implementation, the sequence number may be a positive integer arranged in sequence, for example, every time a message is sent, the message sequence number is increased by 1, the message sequence number is reset to a preset initial value (for example, the initial value is 0) after the preset maximum value is reached, and the calculation sequence is restarted. Of course, besides the method of adding 1, the message sequence number may also be implemented by subtracting 1, or implemented by setting a specific bit position, which is not listed here.
Client number client ID/client name: indicating to which client the adjusted time slot content belongs. When the time slot configuration content of only one client is adjusted, the message carries the corresponding client number client ID, which indicates the specific client to which the time slot configuration content carried in the message belongs.
Time slot adjustment type parameter: and giving the time slot adjustment type, wherein the time slot adjustment type is full configuration or incremental adjustment, the time slot number is changed or only the time slot position is changed without changing the time slot number, and the time slot is increased or decreased.
Response information: and responding to the opposite terminal equipment about the timeslot message condition received by the local terminal equipment, such as responding to the timeslot message sequence number SQ received at the last time or responding to the discontinuous condition information of the timeslot message sequence number SQ received and the like.
The configuration information gives the timeslot configuration information (sub timeslot) carried by the message, and the timeslot configuration information may be a configuration mode of a full timeslot or a timeslot configuration mode of a certain client. For the full time slot configuration mode, the message gives the specific clients to which all the time slots belong respectively, and gives client ID corresponding to the time slots. When the message only carries the time slot configuration mode of a certain client, the message gives the configuration conditions of all the time slots of the client. Whether the configuration of the full time slot or the time slot configuration of a certain client, the configuration information usually gives the corresponding relation between the client ID of the client number and the time slot. The following provides an implementation according to the above two timeslot configuration cases.
When the time slot configuration message carries the total time slot, the configuration information is the client numbers arranged according to the time slot sequence, and the nth client number correspondingly uses the nth time slot (n is a natural number and n is not more than the total number of the sub-time slots); specifically, the configuration information carried in the message is represented by the following method:
{client ID,client ID,client ID,……,client ID,client ID}
that is to say, the client numbers corresponding to all the time slots are sequentially arranged and given in the configuration information, the client ID at the first position is the client number corresponding to the sub-time slot0, the client ID at the second position is the client number corresponding to the sub-time slot 1, the client ID at the third position is the client number corresponding to the sub-time slot2, and so on, where the sub-time slot supports a certain sub-time slot in 480 sub-time slots in a 5Gbit/s pipeline in the FlexE protocol, and the sub-time slot is referred to as a "time slot" in the above description, so as to facilitate the following description, for example, the aforementioned time slot configuration message is actually referred to as a sub-time slot configuration message. After receiving the timeslot configuration message, the opposite terminal device can know which timeslot or timeslots are allocated to the client service according to the configuration information, thereby completing the transmission of timeslot configuration, and receiving and recovering the service according to the new timeslot configuration mode.
In Flexe, when the message carries the configuration results of all 480 sub-time slots, corresponding client numbers corresponding to the 480 sub-time slots are correspondingly placed; when the message carries the configuration results of all 960 sub-slots (when the message is carried on a 10G interface or a 2 x 5G pipeline, there are 960 sub-slots), the corresponding client numbers of the 960 sub-slots are correspondingly placed.
If the message only carries the configuration result of partial sub-time slots in all time slots each time, only the client numbers corresponding to the partial sub-time slots are put, i.e. the full time slot is divided into at least two groups, and the configuration information in each message carries one of the groups. For example, the message carries only 120 sub-slots (0-119), and the message carries only the client numbers of these sub-slots. The client numbers corresponding to all the sub-slots carried in the message may be arranged in groups, and are divided into a plurality of areas in the message, each area stores the client numbers corresponding to one group of sub-slots, for example, 480 sub-slots are divided into four groups, and the message carrying area is divided into four areas, the client numbers corresponding to each 120 sub-slots are a group, 0-119 group, 120-239 group, 240-359 group, and 360-479 group, and each group is stored in the corresponding area in the message.
When the time slot configuration message carries all time slots of a client, the configuration information is a time slot label arranged according to the time slot sequence, and the value of the time slot label is set according to the time slot used by the client number. Specifically, the value of each sub-slot label is arranged in the order of the sub-slots, which can be specifically expressed as follows:
{tag0,tag1,tag2,tag3,tag4,……,tag238,tag239}
that is, the message carries the tag values of all sub-time slots, the position of sub-time slot0 is tag0, the position of sub-time slot 1 is tag1, and so on, the tag value of each sub-time slot position indicates whether the sub-time slot belongs to the client. The tag value may be a single-bit value, for example, tag =1 may indicate that the subslot at the corresponding position belongs to the customer, tag =0 may indicate that the corresponding subslot does not belong to the customer, and these tag values indicate which subslots are configured as the customer and which subslots are not configured as the customer in all the subslots. For example, if a client is configured with two sub-slots, sub-slot 0 and sub-slot 2, the message content for transmitting the client slot is as follows: <xnotran> {1,0,1,0,0,0,0,0,0,0,0,0, … …,0}, 0 2 , "1", "0". </xnotran> Only 480 bit values (when the maximum time slot number is 480) are needed to show the configuration conditions of all the sub time slots of the client, the message is simplified, and the transmitted information quantity is minimum.
The frame format of the timeslot configuration message may be various, for example, referring to fig. 3, the timeslot configuration message may adopt a standard ethernet frame format, or adopt various Protocol messages of the ethernet frame format, such as an LLDP (Link Layer Discovery Protocol) message, where a new function is extended in an extension field in the LLDP Protocol message to carry timeslot configuration content; of course, the timeslot configuration message may also be in other message formats, such as a self-defined code block stream combination of S block + D block + T block, referring to fig. 4, where the S block, D block, and T block are bit code blocks obtained by coding 64B/66B defined by ethernet. The specific frame format used by the message is not limited herein.
Taking the frame format under the FlexE standard protocol as an example, there is 56 bits of overhead (bit 0 to bit 55 located in the payload region of the first 64B/66B data code block) in the basic unit of each basic unit frame, and the specific format is as shown in fig. 5, where the overhead information includes a multi-frame indicator (MFI), an overhead channel use indicator (Flag), a slot increment adjustment notification (S bit), a slot validation indicator (C bit), a slot adjustment request (CR bit), a slot adjustment response (CA bit), a GCC channel (general information transfer channel for transferring network management information or clock information), a client ID, a sub-slot ID, and a CRC. Wherein, the GCC channel shares a bit position with the client ID and the sub-slot ID, and when the Flag value is 11, the corresponding bit position after CA in figure 5 is represented as the GCC channel; when the Flag value is 00, it represents that the corresponding bit position after CA in fig. 5 is used by client ID and sub-slot ID.
It is worth noting that in the prior art, the sub-slot ID is used for transmitting a slot number, when the sub-slot ID is used for transmitting slot configuration information, the second node completes the notification work of slot configuration increase through the S bit and the sub-slot ID, completes the application of slot configuration through the CR and the sub-slot ID, and completes the response of slot configuration through the CA and the sub-slot ID. When the time slot adjustment is needed, the notification and handshake work of the time slot adjustment is completed through the S, the CR and the CA, the sub-slot ID is required to be transmitted back and forth for multiple times in the notification and handshake process, and the sub-slot ID information is transmitted repeatedly. When the amount of the adjusted time slots is large, the quantity of the sub-slot IDs repeatedly transmitted back and forth is large, bandwidth is wasted, transmission efficiency is low, and reliability is poor.
After time slot configuration contents are transmitted in a GCC mode, in the adjustment process of time slot configuration, a handshake negotiation process only needs to transmit the message characteristic value of a corresponding time slot configuration message without repeatedly transmitting the time slot configuration contents, the message characteristic value of the time slot configuration message may be a message serial number (SQ), or a client number (client ID), or the client number (client ID) + the message serial number (SQ), and different message characteristic values are borne in overhead fields in basic unit frames. When the message characteristic value indicates a client number, directly using the client ID field position of the cancellation field in the existing standard, as shown in the first mode in FIG. 6; when the message characteristic value indicates a message serial number, directly using the sub slot ID field position of the overhead field in the existing standard (when GCC is adopted to transfer slot configuration content, the sub slot ID field is disabled), modifying the field position into a message serial number (SQ) field as shown in a second mode in fig. 6; when the message feature value indicates the client number + the message serial number, the positions of the client ID field and the sub slot ID field of the cancellation field in the existing standard are directly used, as shown in the third mode in fig. 6.
Referring to fig. 7, in the first handshake negotiation manner of step S200, specific handshake negotiation steps are as follows:
step S210, a first node sends CR information and a message characteristic value to a second node, and the message characteristic value and the CR information are carried by an overhead field in a frame structure;
step S220, the second node receives the CR information, and sends the CA information and the message characteristic value to the first node, where the message characteristic value and the CA information are carried by the overhead field in the frame structure.
The two-slot configuration process with the number of slots decreased and the number of slots increased is taken as an example for explanation.
The adjustment process for reducing the number of timeslots is shown in fig. 8, in which a first node first transmits a timeslot configuration packet through the GCC, and then the first node sends CR information (the value of the CR bit is set to 1) and a packet characteristic value related to the timeslot configuration packet to a second node through an overhead field. After receiving the CR information with a value of 1 from the overhead field, the second node sends back CA information (with a CA bit value of 1) and a message characteristic value to the first node via the overhead field. And after receiving the returned CA information, the first node determines that the time slot configuration content is successfully transferred and sends the position of the adjustment indication bit as a valid value to the second node. Referring to fig. 9, embodied in steps as:
step S310, the first node receives the CA information and determines that the time slot configuration content is successfully transmitted;
and step S320, the first node sends the adjustment indication bit position in the message to the second node as an effective value carrying the message characteristic value, and the effective value is used for indicating that the time slot configuration is effective.
And after the second node receives the C bit position as the effective value, receiving and recovering data from the service time slot corresponding to the adjusted time slot configuration message in the next multiframe, and finishing the adjustment of bandwidth reduction. The adjustment indication bit may be represented by a C bit, and the C bit may be represented by a single bit, for example, if the C bit is set to 1, it indicates that the adjustment indication is valid, and then the second node receives the C bit of 1, that is, enables the slot adjustment to receive and recover the data.
The adjustment process of increasing the number of time slots is shown in fig. 10, where the increasing of the time slot debugging may be initiated by the second node, so as to ensure that the bandwidth of the downstream pipeline is always greater than the bandwidth of the upstream time slot pipeline when the time slot is increased; the second node sends a notification message and sends the S bit to the first node, notifying the first node to start the timeslot adjustment operation, and completes the handshake negotiation process through the CR, CA, and C bits, which is similar to the above adjustment process for reducing the number of timeslots, and may refer to fig. 10 directly, and description thereof is not repeated.
Referring to fig. 11, in the second handshake negotiation manner of step S200, specific handshake negotiation steps are as follows:
step S230, the second node receives the timeslot configuration packet sent by the first node;
step S240, the second node determines a message characteristic value according to the time slot configuration message;
in step S250, the second node sends the message characteristic value back to the first node through the GCC.
The second handshake negotiation mode does not pass through the CR and CA, but directly adopts the GCC channel to send the message characteristic value back to the first node, and the first node can know which timeslot configuration message corresponds to according to the received message characteristic value, thereby triggering the timeslot adjustment process. The time slot triggering process of the first node is similar to the first handshake negotiation manner, and with reference to fig. 12, includes the following steps:
step S330, the first node receives the message characteristic value returned by the second node through the GCC;
step S340, the first node sends the adjustment indication bit position to the second node with the message feature value, where the valid value is used to indicate that the timeslot configuration is in effect.
The handshake negotiation procedure described above can be seen with reference to fig. 13.
It can be understood that, when the GCC mode is used to transmit the timeslot configuration content, handshake negotiation may not be performed between the devices, and the device takes effect immediately after receiving the timeslot message, so that the negotiation process is omitted in the adjustment process, the sending device directly sends the timeslot message to the receiving device, and the receiving device takes effect to enable the timeslot configuration content in the message after receiving the timeslot message.
According to the time slot adjusting method, all the time slots to be adjusted are packaged into a message by the first node, the time slots to be adjusted are transmitted to the second node at one time, and compared with a traditional handshake negotiation mode of transmitting a plurality of time slots for multiple times, the time slot adjusting method only needs to transmit the message characteristic value in the handshake negotiation process, and the message characteristic value is used for bearing a medium of handshake negotiation.
The embodiment of the invention also provides a time slot configuration device, which comprises at least one processor and a memory which is used for being connected with the at least one processor in a communication way; the memory stores instructions executable by the at least one processor to cause the at least one processor to perform the aforementioned time slot configuration method.
Referring to fig. 14, it is exemplified that the control processor 1001 and the memory 1002 in the time slot configuration apparatus 1000 may be connected by a bus. The memory 1002, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer-executable programs. Further, the memory 1002 may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk memory, flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 1002 may optionally include memory located remotely from the control processor 1001, which may be connected to the timeslot configuration device 1000 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Those skilled in the art will appreciate that the device architecture shown in fig. 14 does not constitute a limitation of the time slot configuration device 1000, and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.
Also provided by embodiments of the present invention is a computer-readable storage medium having stored thereon computer-executable instructions for execution by one or more control processors.
The above described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, may be located in one place, or may be distributed over a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope of the present invention defined by the claims.
Claims (16)
1. A time slot configuration method is applied to a first node, and comprises the following steps:
transmitting a time slot configuration message containing time slot configuration content to the second node through a general communication channel GCC;
handshake negotiation with the second node is carried out based on a time slot adjustment request CR and a time slot adjustment response CA, or handshake negotiation with the second node is carried out through GCC, and a message characteristic value is carried in the handshake negotiation process and used for representing a time slot configuration message corresponding to the time slot configuration content;
and when the handshake negotiation is completed, sending an adjustment indication signal to the second node by carrying the message characteristic value, so that the second node receives and recovers the service data according to the time slot configuration content in the time slot configuration message corresponding to the message characteristic value.
2. The timeslot configuration method according to claim 1, wherein the handshake negotiation with the second node based on the timeslot adjustment request CR and the timeslot adjustment answer CA comprises:
sending CR information and the message characteristic value to the second node, wherein the message characteristic value and the CR information are carried by an overhead field in a frame structure;
and receiving CA information and the message characteristic value which are sent to the first node by the second node in response to the CR information, wherein the message characteristic value and the CA information are carried by an overhead field in a frame structure.
3. The timeslot configuration method according to claim 2, wherein the CR information is carried by CR bits and the CA information is carried by CA bits.
4. The timeslot configuration method according to claim 2, wherein said sending an adjustment indication signal to the second node with the message characteristic value includes:
determining that the time slot configuration content is successfully transmitted according to the received CA information;
and the position of the adjustment indication bit is an effective value, and the adjustment indication bit is sent to the second node with the message characteristic value, wherein the effective value is used for indicating that the time slot configuration is effective.
5. The timeslot configuration method according to claim 1, wherein the handshake negotiation with the second node via the GCC comprises:
sending the time slot configuration message to the second node so that the second node determines a message characteristic value according to the time slot configuration message;
and receiving the message characteristic value returned by the second node through the GCC.
6. The timeslot configuration method according to claim 5, wherein the sending, to the second node, the adjustment indication signal carrying the message characteristic value includes:
receiving the message characteristic value returned by the second node through GCC;
and the position of the adjustment indicating bit is an effective value, and the adjustment indicating bit is sent to the second node with the message characteristic value, wherein the effective value is used for indicating that the time slot configuration is effective.
7. The timeslot configuration method according to claim 1, wherein the timeslot configuration content is carried in an ethernet packet, and the timeslot configuration content includes overhead information and configuration information;
the overhead information includes at least one of: message serial number, client ID, time slot adjustment type parameter and response information for handshake negotiation, which are used for expressing the sequence relation of the time slot configuration message;
the configuration information includes a corresponding relationship between a client number client ID and a time slot.
8. The timeslot configuration method according to claim 7, wherein, when the packet eigenvalue is used to represent a client ID, the packet eigenvalue is carried in a client ID field of an overhead field in a packet; under the condition that the message characteristic value is used for representing a message serial number, the message characteristic value is borne in a sub-slot ID field of a time slot label of an overhead field in the message; and the message characteristic value is loaded in a client ID field and a sub-slot ID field of the overhead field under the condition that the message characteristic value is used for representing the client ID and the message serial number.
9. The timeslot configuration method according to claim 7, wherein when the timeslot configuration message carries a full timeslot, the configuration information is a customer number arranged according to a timeslot position sequence, and an nth position corresponds to a customer number carried by an nth timeslot; when the time slot configuration message carries all time slots of a client, the configuration information is a time slot label arranged according to a time slot sequence, and the value of the time slot label is set according to the time slot used by the client number.
10. The timeslot configuration method according to claim 9, wherein when the timeslot configuration message carries a part of the total timeslots at a time, the total timeslots are divided into at least two packets, and the configuration information in each message carries one of the packets.
11. The timeslot configuration method according to claim 1, wherein the timeslot configuration message uses a standard ethernet frame format or a stream of code blocks consisting of S, D and T blocks, wherein S, D and T blocks are bit code blocks defined by ethernet and encoded by 64B/66B.
12. A time slot configuration method is applied to a second node, and comprises the following steps:
receiving a time slot configuration message which is sent by a first node and contains time slot configuration content through a general communication channel GCC;
handshake negotiation with the first node based on the time slot adjustment request CR and the time slot adjustment response CA, or handshake negotiation with the first node through the GCC, wherein a handshake negotiation process carries a message characteristic value, and the message characteristic value is used for representing a time slot configuration message corresponding to the time slot configuration content
And when the handshake negotiation is completed, receiving an adjustment indication signal which is sent by the first node and carries the message characteristic value, and receiving and recovering service data according to the time slot configuration content in the time slot configuration message corresponding to the message characteristic value.
13. The timeslot configuration method according to claim 12, wherein the handshake negotiation with the first node based on the timeslot adjustment request CR and the timeslot adjustment answer CA comprises:
receiving CR information and the message characteristic value sent by the first node, wherein the message characteristic value and the CR information are carried by an overhead field in a frame structure;
and sending CA information and the message characteristic value to the first node, wherein the message characteristic value and the CA information are carried by an overhead field in a frame structure.
14. The timeslot configuring method according to claim 12, wherein the handshake negotiation with the first node via the GCC comprises:
receiving the timeslot configuration message sent by the first node;
determining a message characteristic value according to the time slot configuration message;
and sending the message characteristic value back to the first node through the GCC.
15. A time slot configuration apparatus comprising at least one processor and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor to enable the at least one processor to perform a time slot configuration method as claimed in any one of claims 1 to 11 or to perform a time slot configuration method as claimed in any one of claims 12 to 14.
16. A computer-readable storage medium storing computer-executable instructions for causing a computer to perform the time slot configuration method of any one of claims 1 to 11 or the time slot configuration method of any one of claims 12 to 14.
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| CN202110804758.0A CN115701188A (en) | 2021-07-16 | 2021-07-16 | Time slot configuration method, time slot configuration device and computer readable storage medium |
| PCT/CN2022/103202 WO2023284563A1 (en) | 2021-07-16 | 2022-06-30 | Slot configuration method, slot configuration apparatus, and computer-readable storage medium |
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| CN202110804758.0A CN115701188A (en) | 2021-07-16 | 2021-07-16 | Time slot configuration method, time slot configuration device and computer readable storage medium |
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| US7558287B2 (en) * | 2005-08-23 | 2009-07-07 | Transwitch Corporation | Combined hardware and software implementation of link capacity adjustment scheme (LCAS) in SONET (synchronous optical network) virtual concatenation (VCAT) |
| CN102143052B (en) * | 2010-11-08 | 2013-10-09 | 华为技术有限公司 | Method, equipment and system for lossless bandwidth |
| CN108632061B (en) * | 2017-03-20 | 2020-12-15 | 华为技术有限公司 | Bandwidth adjusting method and device |
| CN109688016B (en) * | 2019-01-25 | 2022-06-03 | 中兴通讯股份有限公司 | Method for switching time slot configuration in flexible Ethernet protocol and related equipment |
| CN112804078B (en) * | 2020-07-23 | 2022-03-18 | 中兴通讯股份有限公司 | Bandwidth adjustment method, service transmission method, network device and readable storage medium |
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