CN101179465B - Wireless network media access control system and service stream dynamic handling method - Google Patents
Wireless network media access control system and service stream dynamic handling method Download PDFInfo
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Abstract
The invention relates to the technical field of a wideband wireless network and discloses a system for controlling the access of a wireless network media and a method for dynamic processing the state of service flow thereof. In the invention, a table of transaction management information is used for recording the state information on a transaction during management operation for the service flow in the system for controlling the access of the wireless network media and saving various parameters, states and transmitted management information during the operation, so as to use the parameters, states and information conveniently and rapidly in the entire operational course of service flow management. At the same time, during a transaction, when the information is determined to be time-out error, the invention provides a method for processing the classification rules by triggering a convergence sublayer.
Description
Technical field
The present invention relates to the broadband wireless network technical field, the method for dynamically processing in particularly a kind of broadband wireless network media access control system and the management service flow process thereof.
Background technology
Broadband wireless network is a kind of broadband network that can provide high-speed radio to insert.IEEE 802.16WirelessMAN is exactly a kind of broadband network CarlEklund that can provide high-speed radio to insert in the metropolitan area scope, Roger B.Marks, " IEEE Standard 802.16:A Technical Overview of theWirelessMAN
TMAir Interface for Broadband Wireless Access ", IEEEC802.16-02/05,2002.IEEE 802.16 working groups are respectively at issuing IEEEStd 802.16-2004, IEEE Std 802.16e in 2004 and 2005.IEEE 802.16 media access control layer standards adopt hierarchy, being divided into from top to bottom is three sublayers, comprises convergence sub-layer (CS, convergence sublayer), common part sublayer (CPS, common part sublayer) and Security Sublayer (SS, security sublayer).Wherein, convergence sub-layer is responsible for and high-level interface, converges the upper strata different business; Common part sublayer is realized main medium access control function, can be divided into datum plane and control plane; Security Sublayer is responsible for the authentication and the encryption function of media access control layer.
In IEEE Std 802.16, service flow (ServiceFlow) is an important concept, and the introducing of this notion is in order to realize the different service quality QoS of different business.A service flow is an essential characteristic with one group of qos parameter set, and it is a unidirectional traffic that certain quality of service QoS is provided, and base station BS and subscriber station SS are according to providing the respective service qualitative attribute for the good QoS parameter of service flows definition.Service flow is carried in the connection, and connects the just notion of MAC internal work use, when relevant the time with upper-layer service, and service of will using and service flow, service flow is shone upon with being connected mutually.The medium access control itself provides the managing signaling relevant with service flow, is used for adding, revises, deletes service flow.IEEE802.16 provides 5 class service: UGS, rtPs, nrtPs, ertPs and BE altogether.Each service flow all has the bar number of its service flow, and the service flow bar number of different service flow might be different.Simultaneously, service flow has three kinds of different states, promptly admits state, state of activation and preassignment state, and service flow can be carried out transition between above-mentioned three kinds of different states.
In IEEE Std 802.16, IEEE 802.16 working groups have stipulated the flow process and the status change of the service flow dynamic process of BWA, but do not stipulate for the implementation in flow process and the status change.
Summary of the invention
The objective of the invention is to, a kind of wireless network media access control system and service stream dynamic handling method thereof are provided, the administrative messag etc. that utilizes affairs (transaction) management information table to write down the state information of affairs in the management service flow operating process of described wireless network media access control system and preserve various parameters, state and transmission in the operation pilot process is so that use these parameters, state and message easily and quickly in the bookkeeping process of whole service flow.
To achieve these goals, the invention provides a kind of wireless network media access control system, comprise base station and terminal, described base station and terminal are the communicating pairs of the service flow affairs that taken place in the described wireless network media access control system; Wherein, in the described base station, comprise the first transaction management module, in the described terminal, comprise the second transaction management module, in the described first transaction management module, comprise the first backup parameter module, in the described second transaction management module, comprise the second backup parameter module; Described first backup parameter module and the described second backup parameter module are respectively applied for to preserve and can be used for unique service flow parameters and the state information of determining a service flow in the described affairs; In the described first transaction management module, comprise the first service flow information module, in the described second transaction management module, comprise the second service flow information module; Described first service flow information module and the described second service flow information module are respectively applied for the management service flow information node of preserving the definite service flow of representative in the described affairs.
The dynamic service flow deletion affairs that the dynamic service flow that the dynamic service flow deletion affairs that preferable, the service flow affairs that taken place in the described wireless network media access control system comprise that the dynamic service flow of being initiated by this locality adds affairs, the dynamic service flow of being initiated by this locality is revised affairs, initiated by this locality, the dynamic service flow of being initiated by far-end add affairs, initiated by far-end is revised affairs and initiated by far-end.
Preferable, described first transaction management module and the described second transaction management module also are used for being recorded in the administrative messag that service flow affairs that described base station and terminal room take place are sent.
Preferable, in the described first transaction management module, comprise the first backup messages module, in the described second transaction management module, comprise the second backup messages module, described first backup messages module and the described second backup messages module are used to be kept at when the service flow affairs take place, by local entity to message that remote end entity sent.
Preferable, in described wireless network media access control system, when the service flow affairs take place, when existing management service flow information node is kept in the described first service flow block of information mould, and also needing to preserve other management service flow information node in described base station the time, the described first backup parameter module also is used to preserve the management service flow information node; When the service flow affairs take place, when existing management service flow information node is kept in the described second service flow information module, and also needing to preserve other management service flow information node in described terminal the time, the described second backup parameter module also is used to preserve the management service flow information node.
Preferable, in described wireless network media access control system, described base station also is used for, when described service flow affairs take place, waiting for that described terminal sends in the next process of message, if described terminal surpasses the time of setting and do not send message, then described base station will not receive that the error message of acknowledge message sends local convergence sub-layer to;
Described terminal also is used for, when described service flow affairs take place, waiting for that described base station sends in the next process of message, if described base station surpasses the time of setting and do not send message, then described terminal will not receive that the error message of acknowledge message sends local convergence sub-layer to.
To achieve these goals, the invention also discloses a kind of service stream dynamic handling method of wireless network media access control system, may further comprise the steps:
Steps A is provided with the transaction management information module respectively in base station in wireless network media access control system and the terminal, comprise backup parameter module and service stream information module in the described transaction management information module;
Described parameter module is used for preserving described affairs and can be used for unique service flow parameters and the state information of determining a service flow; Described service flow information module is used for preserving the management service flow information node that service flow is determined in described affairs representative;
Step B by carry out information operatings such as preservation information, use information and deletion information in described transaction management information module, is implemented in dynamic process service flow affairs in the service flow transaction management operating process of described wireless network media access control system.
The dynamic service flow deletion affairs that the dynamic service flow that the dynamic service flow deletion affairs that preferable, the service flow affairs in the service stream dynamic handling method of described wireless network media access control system comprise that the dynamic service flow of being initiated by this locality adds affairs, the dynamic service flow of being initiated by this locality is revised affairs, initiated by this locality, the dynamic service flow of being initiated by far-end add affairs, initiated by far-end is revised affairs and initiated by far-end.
Preferable, in step B, when being initiated dynamic service flow interpolation affairs by this locality, the process that described local matter management information module is carried out information operating may further comprise the steps:
Step B101, local entity receives that the dynamic service flow that the convergence sub-layer by this locality transmits adds transactions requests, the parameter of asking the service flow of interpolation is kept in the backup parameter module of local transaction management information module, and sends a request message to the pairing remote end entity of service flow with the request interpolation;
Step B102, local entity receives the response message that remote end entity is sent, and judges whether described remote end entity agrees to add service flow, if remote end entity is agreed to add service flow, enters step B103; If the remote end entity refusal adds service flow, enter step B106;
Step B103, local entity is newly-built management service flow information node in the service flow information module of this locality;
Step B104, local entity use the parameter of the service flow of the request interpolation that is kept in the backup parameter module to fill newly-built management service flow information node, and the management service flow information node after filling is copied in the local entity;
Step B105, local entity empty the content that is kept in backup parameter module and the service stream information module, and send the affirmation information of adding the service flow success to remote end entity;
Step B106, local entity empty the backup parameter module content of the parameter that is used for preserving the service flow that request adds;
Step B107, local entity send the affirmation information of not adding service flow to remote end entity.
Preferable, in step B, when being initiated dynamic service flow interpolation affairs by far-end, the process that described local matter management information module is carried out information operating may further comprise the steps:
Step B201, local entity receive that the dynamic service flow that is sent by remote end entity adds request message in the process of initiating dynamic service flow interpolation affairs;
Step B202, local entity add the dynamic service flow received and transmit the request primitive that adds service flow in the backup parameter module that the service flow parameters that is comprised in the request message is kept at local transaction management information module and to local convergence sub-layer;
Step S403, local entity is received the response primitive that is sent by local convergence sub-layer, judges whether local convergence sub-layer agrees to add service flow, if local convergence sub-layer agrees to add service flow, enter step B204,, enter step B211 if local convergence sub-layer refusal adds service flow;
Step B204, local entity takes out the service flow parameters in the backup parameter module that is kept at local transaction management information module;
Step B205, the newly-built management service flow information node of local entity is filled described management service flow information node with the service flow parameters of taking out;
Step B206, local entity is kept at management service flow information node newly-built and that filled parameter in the service flow information module of local matter management information module;
Step B207, local entity send to remote end entity and agree to carry out the response message that service flow is added;
Step B208, local entity receive the affirmation message of being sent by remote end entity, judge whether described remote end entity confirms this service flow interpolation, adds if remote end entity has been confirmed this service flow, enters step B209; If remote end entity service flow this time unconfirmed is added, enter step B210;
The management service flow information node that step B209, local entity will be kept in the service flow information module of local matter management information module copies in the local entity, empties the content that is kept in described backup parameter module and the service stream information module;
Step B210, local entity empty the content that is kept in described backup parameter module and the service stream information module;
Step B211, local entity empty the content in the backup parameter module that is kept at local transaction management information module;
Step B212, local entity sends the response message that refusal adds service flow to remote end entity.
Preferable, in step B, when being initiated dynamic service flow modification affairs by this locality, the process that described local matter management information table carries out information operating may further comprise the steps:
Step B301, local entity receive that the dynamic service flow that the convergence sub-layer by this locality transmits revises transactions requests;
Step B302, local entity be a newly-built management service flow information node in this locality, and fills newly-built management service flow information node with the parameter of the service flow of asking to be revised as;
Step B303, local entity is kept at management service flow information node newly-built and that filled parameter in the backup parameter module of local transaction management information module, and sends a request message to the pairing remote end entity of revising with request of service flow;
Management service flow information node before step B304, local entity will revise is kept in the local service flow information module;
Step B305, local entity receives the response message that remote end entity is sent, and judges whether remote end entity agrees to revise service flow, if remote end entity is agreed to revise service flow, enters step B306, if the remote end entity refusal is revised service flow, enters step B309;
Step B306, local entity is replaced management service flow information node before the modification that is kept in the service flow information module with the management service flow information node that is kept at newly-built in the backup parameter module and has filled parameter;
Step B307, the management service flow information node after local entity will be replaced copies in the local entity, empties backup parameter module of this locality of having preserved the management service flow information node and the content in the service flow information module;
Step B308, local entity send the affirmation information of revising the service flow success to remote end entity;
Step B309, local entity empty backup parameter module of this locality of having preserved the management service flow information node and the content in the service stream information module;
Step B310, local entity send the affirmation information of unmodified service flow to remote end entity.
Preferable, in step B, when being initiated dynamic service flow modification affairs by far-end, the process that described local matter management information table carries out information operating may further comprise the steps:
Step B401, local entity receive the dynamic service flow modify request messages of being sent by remote end entity in the process of initiating dynamic service flow modification affairs;
Step B402, local entity is a newly-built management service flow information node in this locality, the parameter of the service flow that is revised as with the request that is included in the request message is filled newly-built in this step management service flow information node, and described management service flow information node is kept in the backup parameter item of local transaction management information table;
Management service flow information node before step B403, local entity will revise is kept in the local service flow item of information, and transmits the request primitive of revising service flow to local convergence sub-layer;
Step B404, local entity is received the response primitive that is sent by local convergence sub-layer, judges whether local convergence sub-layer agrees to revise service flow, if local convergence sub-layer agrees to revise service flow, enter step B405,, enter step B410 if local convergence sub-layer refusal is revised service flow;
Step B405, the newly-built management service flow information node of local entity is filled described management service flow information node with the service flow parameters of taking out;
Step B406, local entity send to remote end entity and agree to carry out the response message that service flow is revised;
Step B407, local entity receive the affirmation message of being sent by remote end entity, judge whether remote end entity confirms this service flow modification, if remote end entity has been confirmed this service flow and has been revised, enter step B408,, enter step B409 if remote end entity service flow this time unconfirmed is revised;
Step B408, the management service flow information node after local entity will be replaced copies in the local entity, empties backup parameter module that is kept at local transaction management information module and the content of serving in the stream information module;
Step B409, local entity empty backup parameter item that is kept at local transaction management information table and the content of serving in the stream information item;
Step B410, local entity empty backup parameter module that is kept at local transaction management information module and the content of serving in the stream information module;
Step B411, local entity sends the response message that refusal is revised service flow to remote end entity.
Preferable, in the service stream dynamic handling method of described wireless network media access control system, also comprise the backup messages module in the described transaction management information module, when described local entity has administrative messag to send, also comprise a step, described administrative messag to be sent is kept in the backup messages module of local matter management information module, so that administrative messag is preserved, retransmitted.
Preferable, in the service stream dynamic handling method of described wireless network media access control system, in the process of carrying out transaction interaction, the process that administrative messag is preserved, retransmitted may further comprise the steps:
Step B501 when local entity need send administrative messag, before sending described administrative messag, is kept at described administrative messag in the backup messages module of local transaction management information module;
Step B502, local entity is sent to remote end entity with described administrative messag;
Step B503, local entity receive by remote end entity and send and next response message;
Step B504, local entity judges whether to resend administrative messag according to the type of the response message of receiving and current transaction status, if need resend administrative messag, enters step B505; If do not need to resend administrative messag, enter step B506;
Step B505, local entity takes out the administrative messag in the backup messages module that is kept at local transaction management information module, sends to remote end entity;
Step B506 responds the response message that is sent to local entity by remote end entity, empties the content in the described backup messages item.
Preferable, in step B505, after taking-up is kept at the administrative messag in the backup messages module of local transaction management information module and sends to remote end entity, empty the content in the described backup messages item.
Preferable, in step B505, after taking-up is kept at the administrative messag in the backup messages module of local transaction management information module and sends to remote end entity, enter step B503, wait for that far-end sends response message.
Preferable, in the service stream dynamic handling method of described wireless network media access control system, in the processing procedure of described service flow affairs, local entity is in the process of waiting for the affirmation message of being sent by remote end entity, comprise the step of carrying out overtime judgement, if described acknowledge message does not still send from remote end entity after surpassing certain hour, then common part sublayer will not receive that the time-out error message of acknowledge message sends local convergence sub-layer to, and local convergence sub-layer is deleted the classifying rules of current handled service flow according to described time-out error message.
Preferable, in the service stream dynamic handling method of described wireless network media access control system, when producing time-out error, also comprising a step, local entity is revised the state of current service flow affairs of carrying out according to described time-out error message.
The invention has the beneficial effects as follows: take wireless network media access control system and service stream dynamic handling method thereof among the present invention, can utilize the transaction management information table to write down the state information of affairs in the management service flow operating process of described wireless network media access control system and preserve various parameters in the operation pilot process, the administrative messag of state and transmission etc., so that it is convenient in the bookkeeping process of whole service flow, use these parameters apace, state and message, thus can increase substantially the speed and the efficient of wireless network media access control system.
Description of drawings
Fig. 1 is the frame diagram of wireless network media access control system of the present invention;
Fig. 2 is the flow chart of the service stream dynamic handling method of wireless network media access control system of the present invention;
Fig. 3 is for initiating dynamic service flow when adding affairs by this locality among the present invention, and the local matter management information table carries out the flow chart of information operating;
Fig. 4 is for initiating dynamic service flow when adding affairs by far-end among the present invention, and the local matter management information table carries out the flow chart of information operating;
Fig. 5 is for initiating dynamic service flow when revising affairs by this locality among the present invention, and the local matter management information table carries out the flow chart of information operating;
Fig. 6 is for initiating dynamic service flow when revising affairs by far-end among the present invention, and the local matter management information table carries out the flow chart of information operating;
Fig. 7 is the flow chart of preservation, repeating management message among the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, a kind of wireless network media access control system of the present invention and service stream dynamic handling method thereof are further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
At first, the notion that needs clear and definite this locality and far-end, in wireless network media access control system of the present invention and service stream dynamic handling method thereof, the both sides of the service flow affairs taking place and communicating are entity-base station and the terminals in the wireless network media access control system, no matter be base station or terminal, no matter whether be the initiator of service flow affairs also, from the angle of himself, himself is this locality, with the opposing party of its generation service flow affairs then be far-end.
Please refer to shown in Figure 1ly, this is the frame diagram of wireless network media access control system of the present invention.Wireless network media access control system 10 among the present invention, comprise base station 11 and terminal 12, wherein, described base station 11 and terminal 12 are communicating pairs of the service flow affairs that taken place in the described wireless network media access control system 10, and described service flow affairs comprise that the dynamic service flow of being initiated by this locality adds affairs DSA, revise affairs DSC by the dynamic service flow that initiate this locality, delete affairs DSD by the dynamic service flow that initiate this locality, the dynamic service flow of being initiated by far-end adds affairs DSA, revise affairs DSC and delete affairs DSD by the dynamic service flow that far-end is initiated by the dynamic service flow that far-end is initiated.
In the described base station 11, comprise the first transaction management module 111; In the described terminal 12, comprise the second transaction management module 121; Described first transaction management module 111 and the described second transaction management module 121 are used for being recorded in the service flow affairs of described base station 11 and 12 generations of terminal, parameter, state in the state information of the affairs (service flow affairs such as service flow interpolation, modification, deletion) in the management service flow operating process and the preservation pilot process and the administrative messag that is sent are so that use these parameters, state and message easily and quickly in the bookkeeping process of whole service flow.When described affairs take place, above-mentioned information is stored in described first transaction management module 111 and the described second transaction management module 121, when described affairs finish, empty the content of preserving in described first transaction management module 111 and the described second transaction management module 121.
In the described first transaction management module 111, comprise first backup parameter module 1111, the first service flow information module 1112 and the first backup messages module 1113; In the described second transaction management module 121, comprise second backup parameter module 1211, the second service flow information module 1212 and the second backup messages module 1213.Described first backup parameter module 1111 and the described second backup parameter module 1211 are used to preserve service flow parameters and other Backup Datas that can be used for a unique definite service flow, described first service flow information module 1112 and the described second service flow information module 1212 are used to preserve the management service flow information node that service flow is determined in representative, described first backup messages module 1113 and the described second backup messages module 1213 are used to be kept at when the service flow affairs take place, by local entity to message that remote end entity sent.Wherein, management service flow information node in the described wireless network media access control system 10, when affairs (service flow affairs) do not take place, do not stored by the first transaction management module 111 or the described second transaction management module 121, and just be stored in described base station 11 and the described terminal 12, only when affairs (service flow affairs) take place, just be stored in described first transaction management module 111 or the described second transaction management module 121.
Preferable, as a kind of embodiment, when the service flow affairs take place, when existing management service flow information node is kept in the described first service flow information module 1112, and also needing to preserve other management service flow information node in described base station 11 time, the described first backup parameter module 1111 also is used to preserve the management service flow information node.Equally, when existing management service flow information node is kept in the described second service flow information module 1212, and also needing to preserve other management service flow information node in described terminal 12 time, the described second backup parameter module 1211 also is used to preserve the management service flow information node.
Please refer to Fig. 2, this is the flow chart of the service stream dynamic handling method of the wireless network media access control system among the present invention.The service stream dynamic handling method of the wireless network media access control system among the present invention may further comprise the steps:
Step S100 sets up transaction management information table (the transaction management information module promptly is set) respectively in base station in wireless network media access control system and the terminal.Comprise backup parameter item (backup parameter module), service flow item of information (service flow information module) and backup messages item (backup messages module) in the described transaction management information table.
Step S200 by carry out information operatings such as preservation information, use information and deletion information in described transaction management information table, is implemented in dynamic process service flow affairs in the management service flow operating process of described wireless network media access control system.
Please refer to Fig. 3, this is for initiating dynamic service flow when adding affairs by this locality among the present invention, and the local matter management information table carries out the flow chart of information operating.When being initiated dynamic service flow interpolation affairs by this locality, the process that described local matter management information table carries out information operating may further comprise the steps:
Step S301, local entity (base station or terminal) receives that the dynamic service flow that the convergence sub-layer (CS) by this locality transmits adds transactions requests, the parameter of asking the service flow of interpolation is kept in the backup parameter item of local transaction management information table, and, enter step S302 to sending a request message with the pairing remote end entity of service flow (terminal or base station) of asking to add.
Step S302, local entity receives the response message that remote end entity is sent, and judges whether the value of the confirmation code (CC) in the response message equals 0; If the value of described confirmation code equals 0, the expression remote end entity is agreed to add service flow, enters step S303; If the value of described confirmation code is not equal to 0, expression remote end entity refusal adds service flow, enters step S306.
Step S303, local entity is newly-built management service flow information node in the service flow item of information of this locality, enters step S304.
Step S304, local entity uses the parameter of the service flow of the request interpolation that is kept in step S301 in the backup parameter item to be filled in management service flow information node newly-built among the step S303, management service flow information node after filling is copied in the local entity, enter step S305.
Step S305, local entity empty the content that is kept in backup parameter item and the service stream information item, and send the affirmation information of adding the service flow success to remote end entity.
Step S306, local entity empty the backup parameter item content of the parameter that is used for preserving the service flow that request adds in step S301, enter step S307.
Step S307, local entity send the affirmation information of not adding service flow to remote end entity.
Please refer to Fig. 4, this is for initiating dynamic service flow when adding affairs by far-end among the present invention, and the local matter management information table carries out the flow chart of information operating.When being initiated dynamic service flow interpolation affairs by far-end, the process that described local matter management information table carries out information operating may further comprise the steps:
Step S401, local entity (base station or terminal) is received by remote end entity (base station or terminal) and is added the dynamic service flow that is sent in the process of affairs and add request message (this step is initiated the step S301 of dynamic service flow when adding affairs corresponding to aforesaid by this locality) initiating dynamic service flow, enters step S402.
Step S402, local entity is kept at the service flow parameters that is comprised in the dynamic service flow interpolation request message of being received in the backup parameter item of local transaction management information table in step S401, and to the upper strata, be that local convergence sub-layer CS transmits the request primitive that adds service flow, enter step S403.
Step S403, local entity receive by the upper strata, and the response primitive that promptly local convergence sub-layer CS sends judges whether the value of the answer code CC of described primitive equals 0; If the value of described answer code equals 0, the expression upper strata is agreed to add service flow, enters step S404; If the value of described answer code is not equal to 0, expression upper strata refusal adds service flow, enters step S411.
Step S404, local entity takes out the service flow parameters in the backup parameter item that is kept at local transaction management information table in step S402, enters step S405.
Step S405, the newly-built management service flow information node of local entity is used in the service flow parameters of taking out among the step S404 and fills described management service flow information node, enters step S406.
Step S406, local entity are will be in step S405 newly-built and that filled parameter, and the management service flow information node is kept in the service flow item of information of local matter management information table, enters step S407.
Step S407, local entity send to remote end entity and agree to carry out the response message that service flow is added, and enter step S408.
Step S408, local entity receive affirmation (ACK) message of being sent by remote end entity, judge whether the value of the confirmation code CC of described acknowledge message equals 0; If the value of described confirmation code CC equals 0, the expression remote end entity has been confirmed this service flow interpolation, enters step S409; If the value of described confirmation code CC is not equal to 0, expression remote end entity service flow this time unconfirmed is added, and enters step S410.
The management service flow information node that step S409, local entity will be kept in step S406 in the service flow item of information of local matter management information table copies in the local entity, empties the content that is kept in described backup parameter item and the service stream information item.
Step S410, local entity empty the content that is kept in described backup parameter item and the service stream information item.
Step S411, local entity empty the content in the backup parameter item that is kept at local transaction management information table in step S402, enter step S412.
Step S412, local entity sends the response message that refusal adds service flow to remote end entity.
Please refer to Fig. 5, this is for initiating dynamic service flow when revising affairs by this locality among the present invention, and the local matter management information table carries out the flow chart of information operating.When being initiated dynamic service flow modification affairs by this locality, the process that described local matter management information table carries out information operating may further comprise the steps:
Step S501, local entity (base station or terminal) receive that the dynamic service flow that the convergence sub-layer (CS) by this locality transmits revises transactions requests, enter step S502.
Step S502, local entity be a newly-built management service flow information node in this locality, and fills newly-built in this step management service flow information node with the parameter of the service flow of asking to be revised as, and enters step S503.
Step S503, local entity management service flow information node that is will be in step S502 newly-built and that filled parameter is kept in the backup parameter item of local transaction management information table, and, enter step S504 to sending a request message with the pairing remote end entity of service flow (base station or terminal) of asking to revise.
Management service flow information node before step S504, local entity will revise is kept in the local service flow item of information, enters step S505.Wherein, management service flow information node before revising is kept in the service flow parameters item, be for when making amendment, the information (as the state of service flow and the bar number of service flow etc.) of the original service flow information with the service flow that will be revised as directly can be contrasted, to realize the modification of service flow.
Step S505, local entity receives the response message that remote end entity is sent, and judges whether the value of the confirmation code (CC) in the response message equals 0; If the value of described confirmation code equals 0, the expression remote end entity is agreed to revise service flow, enters step S506; If the value of described confirmation code is not equal to 0, expression remote end entity refusal is revised service flow, enters step S509.
Step S506, local entity is used in the management service flow information node the management service flow information node that is kept at newly-built in the backup parameter item among the step S503 and has filled parameter is replaced the modification that is kept in the service flow item of information in step S504 before, enters step S507.
Step S507, management service flow information node after local entity will be replaced in step S506 copies in the local entity, empty backup parameter item of this locality of in step S503 and step S504, having preserved the management service flow information node and the content in the service flow item of information, enter step S508.
Step S508, local entity send the affirmation information of revising the service flow success to remote end entity.
Step S509, local entity empty backup parameter item of this locality of having preserved the management service flow information node in step S503 and step S504 and the content in the service flow item of information, enter step S510.
Step S510, local entity send the affirmation information of unmodified service flow to remote end entity.
Please refer to Fig. 6, this is for initiating dynamic service flow when revising affairs by far-end among the present invention, and the local matter management information table carries out the flow chart of information operating.When being initiated dynamic service flow modification affairs by far-end, the process that described local matter management information table carries out information operating may further comprise the steps:
Step S601, local entity (base station or terminal) is received by remote end entity (base station or terminal) and is revised the dynamic service flow modify request messages of being sent in the process of affairs (this step is initiated the step S503 of dynamic service flow when revising affairs corresponding to aforesaid by this locality) initiating dynamic service flow, enters step S602.
Step S602, local entity is a newly-built management service flow information node in this locality, the parameter of the service flow that is revised as with the request that is included in the request message is filled newly-built in this step management service flow information node, and described management service flow information node is kept in the backup parameter item of local transaction management information table, enter step S603.
Management service flow information node before step S603, local entity will revise is kept in the local service flow item of information, and to the upper strata, promptly local convergence sub-layer CS transmits the request primitive of revising service flow, enters step S604.
Step S604, local entity receive by the upper strata, and the response primitive that promptly local convergence sub-layer CS sends judges whether the value of the answer code CC of described primitive equals 0; If the value of described answer code equals 0, the expression upper strata is agreed to revise service flow, enters step S605; If the value of described answer code is not equal to 0, expression upper strata refusal is revised service flow, enters step S610.
Step S605, local entity is used in the management service flow information node the management service flow information node that is kept at newly-built in the backup parameter item among the step S602 and has filled parameter is replaced the modification that is kept in the service flow item of information in step S603 before, enters step S606.
Step S606, local entity send to remote end entity and agree to carry out the response message that service flow is revised, and enter step S607.
Step S607, local entity receive affirmation (ACK) message of being sent by remote end entity, judge whether the value of the confirmation code CC of described acknowledge message equals 0; If the value of described confirmation code CC equals 0, the expression remote end entity has been confirmed this service flow modification, enters step S608; If the value of described confirmation code CC is not equal to 0, expression remote end entity service flow this time unconfirmed is revised, and enters step S609.
Step S608, the management service flow information node after local entity will be replaced in step S605 copies in the local entity, empties backup parameter item that is kept at local transaction management information table and the content of serving in the stream information item.
Step S609, local entity empty backup parameter item that is kept at local transaction management information table and the content of serving in the stream information item.
Step S610, local entity empty backup parameter item that is kept at local transaction management information table in step S602 and step 603 and the content of serving in the stream information item, enter step S611.
Step S611, local entity sends the response message that refusal is revised service flow to remote end entity.
As a kind of embodiment, in a kind of wireless network media access control system of the present invention and service stream dynamic handling method thereof, add affairs DSA at described dynamic service flow of initiating by this locality, revise affairs DSC by the dynamic service flow that initiate this locality, delete affairs DSD by the dynamic service flow that initiate this locality, the dynamic service flow of being initiated by far-end adds affairs DSA, delete in the reciprocal process of these six affairs of affairs DSD by the dynamic service flow modification affairs DSC of far-end initiation and by the dynamic service flow that far-end is initiated, when described local entity (base station or terminal) or remote end entity (base station or terminal) have acknowledge message, when administrative messags such as response message need send, described message to be sent is kept in the backup messages item of local matter management information table, so that when needs resend described message, resend operation fast.
Please refer to Fig. 7, this is the flow chart of preservation, repeating management message among the present invention.In the service stream dynamic handling method of wireless network media access control system of the present invention, in the process of carrying out transaction interaction, the process that administrative messag is preserved, retransmitted may further comprise the steps:
Step S701, wireless network media access control system is in the process of carrying out transaction interaction, when local entity (base station or terminal) needs to send administrative messag, before sending described administrative messag, described administrative messag is kept in the backup messages item of local transaction management information table, enters step S702.
Step S702, local entity (base station or terminal) is sent to remote end entity (base station or terminal) with described administrative messag, enters step S703.
Step S703, local entity receive by remote end entity and send and next response message, enter step S704.
Step S704, local entity judges whether to resend the administrative messag that sends to remote end entity in step S702 according to the type of the response message of being received in step S703 and current transaction status; If need resend administrative messag, enter step S705; If do not need to resend administrative messag, enter step S706.
Step S705, local entity takes out the administrative messag in the backup messages item that is kept at local transaction management information table in step S701 and sends to remote end entity, waits for that remote end entity sends response message, enters step S703.
Step S706 responds the response message that is sent to local entity in step S703 by remote end entity, empties the content in the described backup messages item.
As a kind of embodiment, in a kind of wireless network media access control system of the present invention and service stream dynamic handling method thereof, revise in the transaction process of affairs DSC at the dynamic service flow interpolation affairs DSA that initiates by far-end and by the dynamic service flow that far-end is initiated, local entity (base station or terminal) has been introduced an overtime judgment mechanism in the process of waiting for affirmation (ACK) message of being sent by remote end entity.If described affirmation (ACK) message does not still send from remote end entity after surpassing certain hour, then common part sublayer (CSP) will not receive that the time-out error message of acknowledge message sends local convergence sub-layer (CS) to, and local convergence sub-layer is deleted the classifying rules of the current handled service flow in the local convergence sub-layer (CS) according to described error message.Simultaneously, local entity is revised the state of current affairs of carrying out according to described time-out error message, and the content relevant with described modification sees also the regulation in the IEEE802.16 agreement.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (18)
1. a wireless network media access control system is characterized in that, comprises base station and terminal, and described base station and terminal are the communicating pairs of the service flow affairs that taken place in the described wireless network media access control system;
Wherein, in the described base station, comprise the first transaction management module, in the described terminal, comprise the second transaction management module;
In the described first transaction management module, comprise the first backup parameter module, in the described second transaction management module, comprise the second backup parameter module;
Described first backup parameter module and the described second backup parameter module are respectively applied for to preserve in affairs and can be used for unique service flow parameters and the state information of determining a service flow;
In the described first transaction management module, comprise the first service flow information module, in the described second transaction management module, comprise the second service flow information module;
Described first service flow information module and the described second service flow information module are respectively applied for to preserve in affairs represents the management service flow information node of determining service flow.
2. a kind of wireless network media access control system according to claim 1, it is characterized in that, the dynamic service flow that the dynamic service flow deletion affairs that described service flow affairs comprise that the dynamic service flow of being initiated by this locality adds affairs, the dynamic service flow of being initiated by this locality is revised affairs, initiated by this locality, the dynamic service flow of being initiated by far-end add affairs, initiated by far-end revise affairs and the dynamic service flow deletion affairs initiated by far-end in more than one combination.
3. a kind of wireless network media access control system according to claim 1, it is characterized in that described first transaction management module and the described second transaction management module also are respectively applied for the administrative messag that is sent in the service flow affairs that are recorded in described base station and terminal room generation.
4. a kind of wireless network media access control system according to claim 3 is characterized in that, in the described first transaction management module, comprises the first backup messages module, in the described second transaction management module, comprises the second backup messages module;
Described first backup messages module and the described second backup messages module are respectively applied for and are kept at when the service flow affairs take place, by local entity to message that remote end entity sent.
5. a kind of wireless network media access control system according to claim 1 is characterized in that:
When the service flow affairs take place, when existing management service flow information node is kept in the described first service flow information module, and also needing to preserve other management service flow information node in described base station the time, the described first backup parameter module also is used to preserve the management service flow information node;
When the service flow affairs take place, when existing management service flow information node is kept in the described second service flow information module, and also needing to preserve other management service flow information node in described terminal the time, the described second backup parameter module also is used to preserve the management service flow information node.
6. a kind of wireless network media access control system according to claim 1 is characterized in that:
Described base station also is used for, when described service flow affairs take place, waiting for that described terminal sends in the next process of message, if described terminal surpasses the time of setting and do not send message, then described base station will not receive that the error message of acknowledge message sends local convergence sub-layer to;
Described terminal also is used for, when described service flow affairs take place, waiting for that described base station sends in the next process of message, if described base station surpasses the time of setting and do not send message, then described terminal will not receive that the error message of acknowledge message sends local convergence sub-layer to.
7. the service stream dynamic handling method of a wireless network media access control system is characterized in that, may further comprise the steps:
Steps A is provided with the transaction management information module respectively in base station in wireless network media access control system and the terminal, comprise backup parameter module and service stream information module in the described transaction management information module;
Described backup parameter module is used for preserving affairs and can be used for unique service flow parameters and the state information of determining a service flow; Described service flow information module is used for preserving the management service flow information node that service flow is determined in an affairs representative;
Step B is by carrying out information operating, dynamic process service flow affairs in the service flow transaction management operating process of described wireless network media access control system in described transaction management information module.
8. the service stream dynamic handling method of a kind of wireless network media access control system according to claim 7, it is characterized in that, the dynamic service flow that the dynamic service flow deletion affairs that described service flow affairs comprise that the dynamic service flow of being initiated by this locality adds affairs, the dynamic service flow of being initiated by this locality is revised affairs, initiated by this locality, the dynamic service flow of being initiated by far-end add affairs, initiated by far-end revise affairs and the dynamic service flow deletion affairs initiated by far-end in more than one combination.
9. the service stream dynamic handling method of a kind of wireless network media access control system according to claim 7, it is characterized in that, in step B, when being initiated dynamic service flow interpolation affairs by this locality, the process that local transaction management information module is carried out information operating may further comprise the steps:
Step B101, local entity receives that the dynamic service flow that the convergence sub-layer by this locality transmits adds transactions requests, the parameter of asking the service flow of interpolation is kept in the backup parameter module of local transaction management information module, and sends a request message to the pairing remote end entity of service flow with the request interpolation;
Step B102, local entity receives the response message that remote end entity is sent, and judges whether described remote end entity agrees to add service flow, if remote end entity is agreed to add service flow, enters step B103; If the remote end entity refusal adds service flow, enter step B106;
Step B103, local entity is newly-built management service flow information node in the service flow information module of this locality;
Step B104, local entity use the parameter of the service flow of the request interpolation that is kept in the backup parameter module to fill newly-built management service flow information node, and the management service flow information node after filling is copied in the local entity;
Step B105, local entity empty the content that is kept in backup parameter module and the service stream information module, and send the affirmation information of adding the service flow success, EO to remote end entity;
Step B106, local entity empty the backup parameter module content of the parameter that is used for preserving the service flow that request adds;
Step B107, local entity send the affirmation information of not adding service flow to remote end entity.
10. the service stream dynamic handling method of a kind of wireless network media access control system according to claim 7, it is characterized in that, in step B, when being initiated dynamic service flow interpolation affairs by far-end, the process that local transaction management information module is carried out information operating may further comprise the steps:
Step B201, local entity receive that the dynamic service flow that is sent by remote end entity adds request message in the process of initiating dynamic service flow interpolation affairs;
Step B202, local entity add the dynamic service flow received and transmit the request primitive that adds service flow in the backup parameter module that the service flow parameters that is comprised in the request message is kept at local transaction management information module and to local convergence sub-layer;
Step S403, local entity is received the response primitive that is sent by local convergence sub-layer, judges whether local convergence sub-layer agrees to add service flow, if local convergence sub-layer agrees to add service flow, enter step B204,, enter step B211 if local convergence sub-layer refusal adds service flow;
Step B204, local entity takes out the service flow parameters in the backup parameter module that is kept at local transaction management information module;
Step B205, the newly-built management service flow information node of local entity is filled described management service flow information node with the service flow parameters of taking out;
Step B206, local entity is kept at management service flow information node newly-built and that filled parameter in the service flow information module of local transaction management information module;
Step B207, local entity send to remote end entity and agree to carry out the response message that service flow is added;
Step B208, local entity receive the affirmation message of being sent by remote end entity, judge whether described remote end entity confirms this service flow interpolation, adds if remote end entity has been confirmed this service flow, enters step B209; If remote end entity service flow this time unconfirmed is added, enter step B210;
Step B209, the management service flow information node that local entity will be kept in the service flow information module of local transaction management information module copies in the local entity, empty the content that is kept in described backup parameter module and the service stream information module, EO;
Step B210, local entity empty the content that is kept in described backup parameter module and the service stream information module, EO;
Step B211, local entity empty the content in the backup parameter module that is kept at local transaction management information module;
Step B212, local entity sends the response message that refusal adds service flow to remote end entity.
11. the service stream dynamic handling method of a kind of wireless network media access control system according to claim 7, it is characterized in that, in step B, when being initiated dynamic service flow modification affairs by this locality, the process that local transaction management information module is carried out information operating may further comprise the steps:
Step B301, local entity receive that the dynamic service flow that the convergence sub-layer by this locality transmits revises transactions requests;
Step B302, local entity be a newly-built management service flow information node in this locality, and fills newly-built management service flow information node with the parameter of the service flow of asking to be revised as;
Step B303, local entity is kept at management service flow information node newly-built and that filled parameter in the backup parameter module of local transaction management information module, and sends a request message to the pairing remote end entity of revising with request of service flow;
Management service flow information node before step B304, local entity will revise is kept in the local service flow information module;
Step B305, local entity receives the response message that remote end entity is sent, and judges whether remote end entity agrees to revise service flow, if remote end entity is agreed to revise service flow, enters step B306, if the remote end entity refusal is revised service flow, enters step B309;
Step B306, local entity is replaced management service flow information node before the modification that is kept in the service flow information module with the management service flow information node that is kept at newly-built in the backup parameter module and has filled parameter;
Step B307, the management service flow information node after local entity will be replaced copies in the local entity, empties backup parameter module of this locality of having preserved the management service flow information node and the content in the service flow information module;
Step B308, local entity sends the affirmation information of revising the service flow success, EO to remote end entity;
Step B309, local entity empty backup parameter module of this locality of having preserved the management service flow information node and the content in the service stream information module;
Step B310, local entity send the affirmation information of unmodified service flow to remote end entity.
12. the service stream dynamic handling method of a kind of wireless network media access control system according to claim 7, it is characterized in that, in step B, when being initiated dynamic service flow modification affairs by far-end, the process that local transaction management information module is carried out information operating may further comprise the steps:
Step B401, local entity receive the dynamic service flow modify request messages of being sent by remote end entity in the process of initiating dynamic service flow modification affairs;
Step B402, local entity is a newly-built management service flow information node in this locality, the parameter of the service flow that is revised as with the request that is included in the request message is filled newly-built in this step management service flow information node, and described management service flow information node is kept in the backup parameter module of local transaction management information module;
Management service flow information node before step B403, local entity will revise is kept in the local service flow information module, and transmits the request primitive of revising service flow to local convergence sub-layer;
Step B404, local entity is received the response primitive that is sent by local convergence sub-layer, judges whether local convergence sub-layer agrees to revise service flow, if local convergence sub-layer agrees to revise service flow, enter step B405,, enter step B410 if local convergence sub-layer refusal is revised service flow;
Step B405, the newly-built management service flow information node of local entity is filled described management service flow information node with the service flow parameters of taking out;
Step B406, local entity send to remote end entity and agree to carry out the response message that service flow is revised;
Step B407, local entity receive the affirmation message of being sent by remote end entity, judge whether remote end entity confirms this service flow modification, if remote end entity has been confirmed this service flow and has been revised, enter step B408,, enter step B409 if remote end entity service flow this time unconfirmed is revised;
Step B408, the management service flow information node after local entity will be replaced copies in the local entity, empties the backup parameter module and the content of serving in the stream information module, EO that are kept at local transaction management information module;
Step B409, local entity empty the backup parameter module and the content of serving in the stream information module, EO that is kept at local transaction management information module;
Step B410, local entity empty backup parameter module that is kept at local transaction management information module and the content of serving in the stream information module;
Step B411, local entity sends the response message that refusal is revised service flow to remote end entity.
13. the service stream dynamic handling method of a kind of wireless network media access control system according to claim 7, it is characterized in that, also comprise the backup messages module in the described transaction management information module, when local entity has administrative messag to send, also comprise a step, administrative messag to be sent is kept in the backup messages module of local transaction management information module, so that administrative messag is preserved, retransmitted.
14. the service stream dynamic handling method of a kind of wireless network media access control system according to claim 13 is characterized in that, in the process of carrying out transaction interaction, the process that administrative messag is preserved, retransmitted may further comprise the steps:
Step B501 when local entity need send administrative messag, before sending described administrative messag, is kept at described administrative messag in the backup messages module of local transaction management information module;
Step B502, local entity is sent to remote end entity with described administrative messag;
Step B503, local entity receive by remote end entity and send and next response message;
Step B504, local entity judges whether to resend administrative messag according to the type of the response message of receiving and current transaction status, if need resend administrative messag, enters step B505; If do not need to resend administrative messag, enter step B506;
Step B505, local entity takes out the administrative messag in the backup messages module that is kept at local transaction management information module, sends to remote end entity, EO;
Step B506 responds the response message that is sent to local entity by remote end entity, empties the content in the described backup messages module.
15. the service stream dynamic handling method of a kind of wireless network media access control system according to claim 14, it is characterized in that, in step B505, after taking-up is kept at the administrative messag in the backup messages module of local transaction management information module and sends to remote end entity, empty the content in the described backup messages module.
16. the service stream dynamic handling method of a kind of wireless network media access control system according to claim 14, it is characterized in that, in step B505, after taking-up is kept at the administrative messag in the backup messages module of local transaction management information module and sends to remote end entity, enter step B503, wait for that far-end sends response message.
17. the service stream dynamic handling method of a kind of wireless network media access control system according to claim 7, it is characterized in that, in the processing procedure of described service flow affairs, local entity is in the process of waiting for the affirmation message of being sent by remote end entity, comprise the step of carrying out overtime judgement, if described acknowledge message does not still send from remote end entity after surpassing certain hour, then common part sublayer will not receive that the time-out error message of acknowledge message sends local convergence sub-layer to, and local convergence sub-layer is deleted the classifying rules of current handled service flow according to described time-out error message.
18. the service stream dynamic handling method of a kind of wireless network media access control system according to claim 17, it is characterized in that, when producing time-out error, also comprise a step, local entity is revised the state of current service flow affairs of carrying out according to described time-out error message.
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