CN1889708B - Method for interacting business connection identifier - Google Patents

Abstract

A connection-identifying method of interactive service includes sending message containing a group of CID information with a group of CID section intercepted at the same position on each CID and intercepted position identification by sending party, setting CID sections intercepted from each CID to be different with each other, receiving said message and obtaining said group of CID section a swellas said position identification by receiving party then utilizing said CID section to identify service connection according on position corresponding to CID carried by service connection according toindication of said position identification.

Description

A kind of method of interactive service connection identifier

Technical field

The present invention relates to mobile communication technology, particularly a kind of method of interactive service connection identifier.

Background technology

In mobile communication system, the length of stand-by time has very large influence for the one-movement-freedom-degree of terminal, and prolongs standby time can realize that a kind of mode is to adopt battery efficiently by dual mode; Another kind method is to reduce the meaningless power consumption of portable terminal as much as possible.IEEE802.16e is a just mobile wide-band wire-less accessing system standard in formulation process, and the mobile terminal sleeping pattern that defines in the D8 draft of the IEEE802.16e of up-to-date issue just belongs to a kind of method in back.So-called sleep pattern is a portable terminal in the time interval of consulting in advance with the base station, the temporary transient process of getting in touch with the base station of interrupting of eating dishes without rice or wine.Realize that sleep mode procedures can reduce the transmission request of portable terminal on up link and down link, thereby reduce the power consumption of MSS (Mobile Subscriber Station, travelling carriage).

MSS can initiatively send the MOB_SLP_REQ message request to Serving BS (Serving Base Station, serving BS) and enter sleep pattern, and Serving BS transmission MOB_SLP_RSP response message is agreed or refuse MSS to enter sleep pattern then.Also can initiatively send sleep response message MOB_SLP_RSP and come requirement MSS to enter sleep pattern, after MSS receives, enter sleep pattern according to the parameter of carrying among the sleep response message MOB_SLP_RSP generally speaking by BS.

Protocol version is stipulated at present, MSS and BS confer, current service flow is divided into 3 class sleep groups according to its qos requirement and characteristic, inhomogeneity sleep group is taked different sleep strategies respectively, each class can comprise a plurality of sleep groups, adopt identical sleep strategy and different sleep parameters between sleep group in the same class and the sleep group, sleep parameters is according to the business characteristic selection that specifically comprises in each group.Each sleep group can comprise a plurality of service flow, and on behalf of the business between MSS and the BS, each service flow connect, and can be upstream or downstream, and the CID (connection identifier, connection identifier (CID) by one 16 bit identifies.The sleep state of each sleep group is divided into state of activation and unactivated state, and under state of activation, the sleep state machine of this sleep group normally carries out; Under unactivated state, the sleep state machine of this sleep group resets, stops to carry out.Can there be a plurality of sleep groups in MSS, with the nonoverlapping time zone of the listen window of all sleep groups be unavailable interval (Unavailability interval), and Unavailability interval nonoverlapping At All Other Times the section be (Availability interval) between available area.MSS only is only in unavailable interval and really is in sleep state, and all sleep groups of this MSS are all at the sleeping window state.In between available area, can have some sleep group to be in the sleeping window state, other sleep group is in the state of intercepting, and MSS is in fact in waking state, and only the sleep state machine of each sleep group is under the different states.

First kind sleep group is defined as Power_Saving_Class_Type=1, generally is applied to real-time and requires more weak business.Its sleep strategy is to adopt fixing listen window length and variable sleeping window length, listen window and sleeping window are alternately, current sleeping window length is followed successively by 2 times of last sleeping window length, up to the maximum that reaches regulation, remain unchanged then and listen window hocket.Initiate sleep state change request up to MSS or BS, the sleep state machine that this sleep group is set is a unactivated state, and the sleep state machine of this sleep group just stops.

The second class sleep group is defined as Power_Saving_Class_Type=2, generally is applied to periodically send the business of data.Its sleep strategy is to adopt fixing listen window length and fixing sleeping window length, sleeping window and listen window alternately occur then, initiate sleep state change request up to MSS or BS, the sleep state machine that this sleep group is set is a unactivated state, and the sleep state machine of this sleep group just stops.

The 3rd class sleep group is defined as Power_Savinn_Class_Type=3, generally is applied to multicast service.The sleep strategy that its adopts is that sleeping window only is set one time, is unactivated state at the sleep state of this sleep group of the overtime back of sleeping window, and the sleep state machine stops, and activates the sleep state machine of this group again by interacting message up to MSS or BS.

After MSS entered sleep pattern, if when the unavailable interval of MSS, BS had the data that are handed down to this MSS, and then BS must carry out buffer memory with the data that send to this MSS, sends after MSS enters between available area by the time again.

Fig. 1 is the sleep state schematic diagram that has two sleep groups among the MSS, and first sleep group belongs to first kind sleep group, and BS has distributed the listen window of regular length and has been followed successively by the sleeping window of 2 times of last sleeping windows; Second sleep group belongs to the second class sleep group, and BS has distributed the listen window and the sleeping window of regular length.Hatched example areas has shown the resultant effect of two class sleep groups, and wherein: hypographous oblique line interval is Unavailability intervals, and unblanketed oblique line interval is Availability intervals.

MSS can come to BS request redetermination, modification or deletion sleep group by sending sleep request message MOB_SLP_REQ message, and BS is by sending the sleep request that sleep response message MOB_SLP_RSP message responds MSS.About the design of sleep request message, carried out following regulation in the present 802.16e/D8 draft:

1, in same MOB_SLP_REQ message, can define respectively or revise all the sleep groups in this MSS or the sleep state of a part of sleep group;

When 2, the parameter of a certain sleep group being defined or revising, must all list all connection identifier in this sleep group;

3, in each message, the definition of all sleep parameters that the sleep group is related to is unified all to be listed, and invalid parameter is set to 0.

The form of agreement regulation MOB_SLP_REQ message is as shown in table 1 at present, describes for convenient, has increased the sequence number row in this table:

Table 1 Table 108c-Sleep-Request (MOB_SLP_REQ) message format

1	Syntax	Size(bits)	Notes
				2	MOB_SLP_REQ_Message_F ormat()	_
3	Management message type＝51	8	Management message type
				4	Number of Classes	8	The number of sleep group
5	For(i＝0；i＜Number of Classes；i++)	_	_
				6	Definition	1	1: define new sleep group parameter 0: revise existing sleep group parameter
7	Operation	1	1: activated sleep group 0: non-activated sleep group
				8	Power_Saving_Class_ID	6	The sleep group identifier
9	If(Operation＝1){	_	_

1	Syntax	Size (bits)	Notes
				10	Start_frame_number	6	The frame number that sleeping window begins
11	Reserved	2	Reservation bit
				12	}	_	_
13	If (Definition=1)	_	_
				14	Power_Saving_Class_Type	2	The sleep set type
15	Direction	2	The CID direction 0b00=that defines this sleep group correspondence does not stipulate closure, each in this sleep group
							CID can be that the CID that comprises in this sleep of upstream or downstream 0bo1=group is that the CID that comprises in descending this sleep of 0b10=group is up 0b11=reservation bit
16	Traffic_triggered_wakening_f lag	1	The CID corresponding service occurs in this sleep group if 0=has, and the CID corresponding service occurs in this sleep group if 1=has, and needn't stop the sleep state machine that corresponding CID is organized in this sleep.Must stop the sleep state machine of this sleep group.

1	Syntax	Size (bits)	Notes
				17	Reserved	3	Reservation bit
18	Initial-sleep window	8	Distribute to the initial sleeping window length (unit is a frame) of MS.For the 3rd class sleep group, this parameter is incoherent, must be set to 0.
				19	Listening-window	4	Distribute to the initial listen window length (unit is a frame) of MS.For the 3rd class sleep group, this parameter is incoherent, must be set to 0.
20	Final-sleep window base	10	Maximum sleeping window radix, for second type sleep group, this parameter is incoherent, must be set to 0.For the sleep group of the third type, this parameter is used to calculate the length of single sleeping window.
				21	Final-sleep window exponent	3	Maximum sleeping window index. following formula is used for calculating maximum sleeping window: final-sleep window=final-sleep window base * 2 (final-sleep_window_exp onent).For second type sleep group, this parameter is incoherent, must be set to 0.For the sleep group of the third type, this parameter is used to calculate the length of single sleeping window.

1	Syntax	Size (bits)	Notes
				22	Number_of_CIDs	3	If Number_of_CIDs=0 represents all clean culture CIDs relevant with this MS and is increased in this sleep group.
23	For (i=0; I＜Number_of_Sleep_ CIDs; I++)	-	-
				24	CID	16	Be included in the clean culture cid information in this sleep group.CID=0 represents all administrative messag set relevant with this MS.
25	}	-	-
				26	}	-	-
27	TLV encoded information	Variable	The TLV coded message
				28	}

Sequence number 5 is that a circulation is provided with, and the sleep parameters to each sleep group is provided with respectively.

At present the design about MOB_SPL_REQ message has the following disadvantages in the 802.16e/D8 draft: MOB_SLP_REQ message is at complete 16 bit informations having listed all CID that should the sleep group be comprised of each sleep group, but in the middle of reality, professional number is limited in each MSS, utilize 16 bit resource identification cid informations can cause very big waste, take valuable interface-free resources.

Summary of the invention

The invention provides a kind of method of interactive service connection identifier, utilize the partial information in the professional connection identifier information to discern different business connections, when solving in the prior art mutual one group of professional connection identifier, take too much bit, the problem of waste interface-free resources.

A kind of method of interactive service connection identifier is divided into professional connection identifiers CID a plurality of CID fragments in advance, and the corresponding interception position of each CID fragment also comprises the steps:

Transmit leg sends the message that comprises cid information, and described cid information comprises CID slice groups and the interception position sign that intercepts from the identical interception position of each CID, and the CID fragment that is in identical interception position that intercepts from different CID is different;

The recipient receives described message and obtains described CID slice groups and described interception position sign, and according to the indication of described interception position sign, utilizes corresponding this business of identification of described CID fragment to connect on the corresponding interception position of the entrained CID of business connection.

According to described method, in described message, set a bit that is used to be provided with described interception position sign for each interception position.

Wherein: the method to set up of described interception position sign is meant: with the bit position 1 or 0 of correspondence.

Described message is meant: sleep request message or sleep response message.

The described bit that is used to be provided with described interception position sign is meant: carry out 3 the reservation bit positions of sleep parameters when being provided with at each sleep group.

Described professional connection identifier comprises 16 information bits.

Use the method for the invention, can utilize the different CID that carry in the part fragment identification services connection among the CID, reduce the amount of information of carrying in the message of mutual cid information between MSS and the BS, farthest reduced the expense of message, saved interface-free resources.

Description of drawings

Fig. 1 is the sleep state schematic diagram that has two sleep groups among the MSS;

Fig. 2 is the flow chart of the method for mutual cid information between MSS of institute of the present invention and the BS.

Embodiment

Comprise 16 information bits in the existing C id information, each MSS current business number is limited in the reality, for a MSS, may utilize the information of the part fragment in these 16 information bits just can reach upward different business purpose of connecting of this MSS of difference, at this moment, as long as in message, only keep this part frag info position and indicate this part fragment residing position in 16 information bits, just can make BS or MSS connect the correspondence position of the CID that carries in business, utilize the different business of this part CID fragment identification to connect, be equivalent to that like this cid information has been carried out compression and transmit, saved interface-free resources.

Be example with MSS to the sleep request message that BS sends below, describe in detail and how to realize above technical conceive.

Table 2 Table 108c-Sleep-Request (MOB_SLP_REQ) message format

1	Syntax	Size(bits)	Notes
				2	MOB_SLP_REQ_Message_F ormat()	-
3	Management message type＝51	8	Management message type
				4	Number of Classes	8	The number of sleep group
5	For(i＝0；i＜Number of Classes；i++)	-	-
				6	Definition	1	1: define new sleep group parameter 0: revise existing sleep group parameter
7	Operation	1	1: activated sleep group 0: non-activated sleep group
				8	Power_Saving_Class_ID	6	The sleep group identifier
9	If(Operation＝1){	-	-

1	Syntax	Size (bits)	Notes
				10	Start_frame_number	6	The frame number that sleeping window begins
11	Reserved	2	Reservation bit
				12	}	-	-
13	If (Definition=1)	-	-
				14	Power_Saving_Class_Type	2	The sleep set type
15	Direction	2	The CID direction 0b00=that defines this sleep group correspondence does not stipulate closure, and each CID in this sleep group can be that the CID that comprises in this sleep of upstream or downstream 0b01=group is that the CID that comprises in descending this sleep of 0b10=group is up 0b11=reservation bit
				16	Traffic_triggered_wakening_f lag	1	The CID corresponding service occurs in this sleep group if 0=has, and needn't stop the sleep state machine that corresponding CID is organized in this sleep.The CID corresponding service occurs in this sleep group if 1=has, and must stop the sleep state machine of this sleep group.

1	Syntax	Size (bits)	Notes
				17	Comp_CID_Flag	3	Bit0=1: expression keeps the bit0-bit7 information in the former cid information; Bit1=1: expression keeps the bit8-bit11 information in the former cid information; Bit2=1: expression keeps the bit12-bit15 information in the former cid information;
18	Initial-sleep window	8	Distribute to the initial sleeping window length (unit is a frame) of MS.For the 3rd class sleep group, this parameter is incoherent, must be set to 0.
				19	Listening-window	4	Distribute to the initial listen window length (unit is a frame) of MS.For the 3rd class sleep group, this parameter is incoherent, must be set to 0.
20	Final-sleep window base	10	Maximum sleeping window radix, for second type sleep group, this parameter is incoherent, must be set to 0.For the sleep group of the third type, this parameter is used to calculate the length of single sleeping window.

1	Syntax	Size (bits)	Notes
				21	Final-sleep window exponent	3	Maximum sleeping window index. following formula is used for calculating maximum sleeping window: final-sleep window=final-sleep window base * 2 (final-sleep_window_exp onent).For second type sleep group, this parameter is incoherent, must be set to 0.For the sleep group of the third type, this parameter is used to calculate the length of single sleeping window.
22	Number_of_CIDs	3	If Number_of_CIDs=0 represents all clean culture CIDs relevant with this MS and is increased in this sleep group.
				23	For (i=0; I＜Number_of_Sleep_ CIDs; I++)	-	-
24	Comp_CID	4,8,12 or 16	According to the setting of Comp_CID_Flag, keeping former CID information bit position is that 4bit, 8bit, 12bit or all risk insurance stay.Be included in the clean culture cid information in this sleep group.CID=0 represents all administrative messag set relevant with this MS.
				25	}	-	-
26	}	-	-

1	Syntax	Size(bits)	Notes
				27	TLV encoded information	variable	The TLV coded message
28	}

At the sleep request message, the concrete modification of message format is consulted 17 and 24 in the table 2, shown in 17, carry out having when sleep parameters is provided with the reservation position of 3 bits at present in the agreement at each sleep group, therefore can utilize the reservation position of these 3 bits to indicate territory (Comp_CID_Flag) as the position, Bit 0, Bit 1 and Bit2 are used for indicating the partial information position of intercepting 16 cid information present positions respectively as the indicating bit of a correspondence position.

Intercepting CID fragment has only one as keeping the principle that transmits the position: utilize information bit in the CID fragment of this reservation enough to distinguish all professional connections of this group.Therefore need at first to judge which CID fragment satisfies above-mentioned condition, because it is limited to be used to be provided with the reservation bit position of station location marker, and be handled easily, preestablish the division methods of CID fragment and in message, set the bit that is used to be provided with the interception position sign accordingly.

The setting of the division methods of CID fragment and correspondence position sign is exemplified below:

1, with 16 information for being divided into two CID fragments, 3 bits of corresponding selection keep preceding two of position station location marker are set respectively;

The method that is divided into two CID fragments is a lot, can divide from middle any one information bit, for example: select preceding 4,8 or 12 etc. as first fragment, utilize Bit 0 set 1 to indicate, remainder utilizes Bit 1 set 1 to indicate as second fragment.

Commonly used is to divide from the centre, and promptly each CID fragment comprises 8 information bits, and indication keeps the cid information position of the bit0-bit7 among 16 original bit of CID when Bit 0=1; Represent to keep the cid information position of the bit8-bit15 among original 16 bit during Bit 1=1; Bit 0 and Bit 1 put 1 expression simultaneously and have kept whole 16 the bit positions of CID.

2, with 16 information for being divided into three fragments, utilize 3 bits to keep the position respectively, Bit 0, Bit 1 and Bit2 are provided with the interception position sign.

Described a kind of division methods wherein for 17 of table 2, the CID fragment that Bit 0 set 1 expression keeps comprises the cid information position of bit0-bit7 in original 16 bit positions; Bit 1 set represents that the CID fragment that keeps comprises the cid information position of the bit8-bit11 among original 16 bit; Bit 2 set represent that the CID fragment that keeps comprises the cid information position of the bit12-bit15 position among original 16 bit.If a CID fragment can't be distinguished fully, then can select to keep two or three CID fragments, at this moment, corresponding bit is put 1 simultaneously and is got final product in the position indication.

17 described methods are divided into three fragment structures of 8,4 and 4 with 16 bit positions of CID in the table 2, in like manner also can be divided into three fragment structures such as 4,4 and 8.

Shown in 24 in the table 2, after having selected the CID fragment that keeps and being provided with indicating bit, in message, according to the setting of Comp_CID_Flag, only carry 4bit, 8bit in the information bit of former CID16 bit, 12bit or all.

Need to prove, the method of the invention is not limited to sleep and uses in request message and the sleep response message, be equally applicable to other message and carry the processing of the cid information of similar effect, if the reservation bit position in the message is enough, for 16 cid information position, can be divided into 4 fragments or more.And the method for the invention also is not limited to the processing to 16 CID.

In sum, realize that the method for the invention comprises the steps:

Select the CID fragment respectively among S1, transmit leg each CID in one group of CID that will send;

The CID fragment is arranged in the same position of one group of each CID of CID and different;

S2, transmit leg are provided with all the CID fragments of selection and the station location marker of this CID fragment in message;

The CID slice groups of selecting is set in the message respectively, and will indicates the bit position 1 of CID fragment interception position accordingly;

S3, transmit leg send the message of having carried one group of CID fragment and station location marker;

S4, recipient receive the message of having carried one group of CID fragment and station location marker;

After the recipient receives message, therefrom obtain one group of CID fragment and station location marker, and when receiving professional the connection, utilize the CID fragment to connect in the different business of the correspondence position identification of station location marker indication.

Use the method for the invention, can utilize the different CID that carry in the part fragment identification services connection among the CID, reduce the amount of information of carrying in the message of mutual cid information between MSS and the BS, farthest reduced the expense of message, saved interface-free resources.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (6)

1. the method for an interactive service connection identifier is characterized in that, in advance professional connection identifiers CID is divided into a plurality of CID fragments, and the corresponding interception position of each CID fragment also comprises the steps:

Transmit leg sends the message that comprises cid information, and described cid information comprises CID slice groups and the interception position sign that intercepts from the identical interception position of each CID, and the CID fragment that is in identical interception position that intercepts from different CID is different;

The recipient receives described message and obtains described CID slice groups and described interception position sign, and according to the indication of described interception position sign, utilizes described CID fragment to discern this business on the corresponding interception position of the entrained CID of business connection and connect.

2. the method for claim 1 is characterized in that, sets a bit that is used to be provided with described interception position sign for each interception position in described message.

3. method as claimed in claim 2 is characterized in that, the method to set up of described interception position sign is meant: with the bit position 1 or 0 of correspondence.

4. as claim 2 or 3 described methods, it is characterized in that described message is meant: sleep request message or sleep response message.

5. method as claimed in claim 4 is characterized in that, the described bit that is used to be provided with described interception position sign is meant: carry out 3 the reservation bit positions of sleep parameters when being provided with at each sleep group.

6. method as claimed in claim 5 is characterized in that, described professional connection identifier comprises 16 information bits.

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