CN101945452A - Auxiliary carrier distribution method - Google Patents
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- CN101945452A CN101945452A CN2009101589192A CN200910158919A CN101945452A CN 101945452 A CN101945452 A CN 101945452A CN 2009101589192 A CN2009101589192 A CN 2009101589192A CN 200910158919 A CN200910158919 A CN 200910158919A CN 101945452 A CN101945452 A CN 101945452A
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Abstract
The invention discloses an auxiliary carrier distribution method of a terminal in a multi-carrier system. The invention discloses a method for distributing an auxiliary carrier for a terminal in a switching process of the terminal from a service base station to a target base station. The method comprises the following steps of: sending a message to the terminal by the service base station in the switching process of the terminal from the service base station to the target base station, wherein the message carries auxiliary carrier information distributed by one or more target base stations for the terminal. The invention can improve the utilization rate of resources, simplify the system operation and avoid problems of data transmission interception, and the like brought by auxiliary carrier redistribution in the subsequent data transmission process.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of auxilliary carrier allocation method.
Background technology
802.16m system is evolution and the multicarrier system of coming, insert (Orthogonal Frequency Division Multiplex Access abbreviates OFDMA as) technology based on OFDM on the basis of 802.16e system.802.16m the protocol infrastructure of system as shown in Figure 1, single medium access control entity (Media Access Control abbreviates MAC as) control comprises the physical layer (Physical of a plurality of channels, abbreviate PHY as), for example, in Fig. 1, comprise channel 1, channel 2 among the PHY ... channel N.Above-mentioned each channel can have different bandwidth, and for example, the bandwidth of channel 1 is 5MHz, and the bandwidth of channel 2 is 10MHz, and the bandwidth of channel N is 20MHz, and above-mentioned channel can belong to continuous or discontinuous frequency band.
At IEEE 802.16m agreement, the base station and the terminal of different agreement appearred supporting, be called advanced base station (Advanced BS abbreviates ABS as), advanced terminals (Advanced MS abbreviates AMS as).Wherein, ABS is meant and can supports new 16m agreement, base station that again can compatible original 16e agreement; Advanced terminals (AMS) is meant can support new 16m agreement, can support the terminal of original 16e agreement again.
802.16m one or more full configuration carrier waves (Fully configuredcarrier) can be arranged in the system, comprise all synchronously, broadcasting, multicast and clean culture control information, relate to the information and the parameter of multicarrier and other carrier operation; One or more part configuration carrier waves (Partially configured carrier) that only are used for downlink transfer can be arranged simultaneously, comprise all control channels of supporting downlink transfer.Above-mentioned full configuration carrier wave can be used as main carrier (Primary Carrier) or the auxilliary carrier wave (Secondary Carrier) of AMS, and above-mentioned part configuration carrier wave only can be used as the auxilliary carrier wave of AMS.Each AMS has only a main carrier, is used to carry the control information of interactive service, whole physical layer and media access control layer, is mainly used in the operation of control AMS, for example network insertion.Each AMS can have one or more auxilliary carrier waves, also can not assist carrier wave, and auxilliary carrier wave is by ABS specific order and the regular carrier wave that is used for transport service for the AMS distribution.Also may send the control signaling that some support multi-carrier operation on the auxilliary carrier wave.
In the 802.16e system, because channel fading is when causing service quality (Quality ofService abbreviates QoS as) to descend, MS will stop and being connected of Current Serving BTS, and switch to other adjacent base stations, to obtain better QoS.Simultaneously, 802.16 systems also provide idle (Idle) pattern, and the purpose of Idle pattern is to reduce the energy consumption of MS and reduces use to the serving BS air resource.When MS switches or when idle mode operations is converted to normal manipulation mode, all need carries out network on target BS and reenter.
In the single-carrier system of 802.16e, common switching flow is: terminal sends handoff request message, and serving BS sends switching command message and responds, and perhaps serving BS initiatively sends switching command message, after terminal is received the switching command message of base station, send switch indicating information.At predetermined instant, terminal begins to carry out network and reenters on target BS.The flow process that network reenters is: carry out descending targeting sequencing synchronously and up-downgoing information synchronization and finding range on target BS, target BS sends ranging response message to terminal, terminal is carried out optional capability negotiation and registration process according to the instruction of target BS, thereby the network of finishing on target BS reenters.
In 802.16m multicarrier system, when supporting the terminal of multi-carrier operation to carry out said process, need carry out the negotiation of a series of relevant multicarrier attribute and alternately with serving BS, target BS.In order to make terminal after target BS inserts, can use auxilliary carrier wave, need be the auxilliary carrier wave of terminal distribution in handoff procedure, but not have the method for assisting carrier wave in the correlated process for terminal distribution at present as yet.
Summary of the invention
In view of this, the invention provides a kind of auxilliary carrier allocation method, in order to solve the problem that in multicarrier system, can't in terminal switching process, assist carrier wave in the prior art for terminal distribution.
According to an aspect of the present invention, provide a kind of auxilliary carrier allocation method, this method is used for being terminal distribution auxilliary carrier wave from serving BS to the process that target BS switches in terminal.
Auxilliary carrier allocation method according to the present invention comprises: terminal from serving BS to the process that target BS switches, serving BS sends message to terminal, wherein, carries the information that one or more target BS are the auxilliary carrier wave of terminal distribution in this message.
Preferably, above-mentioned message comprises: switching command message or multicarrier response message.
According to another aspect of the present invention, provide another kind of auxilliary carrier allocation method, it is the auxilliary carrier wave of terminal distribution when target BS execution network reenters process that this method is used for terminal.
Auxilliary carrier allocation method according to the present invention comprises: target BS sends message to terminal, and wherein, carrying the mark base station in this message is the information of the auxilliary carrier wave of terminal distribution.
Preferably, above-mentioned message includes but not limited to one of following: ranging response message, registration reply message, multicarrier response message.
According to a further aspect of the invention, provide another auxilliary carrier allocation method, this method is used for terminal and finishes network at target BS and reenter the back and assist carrier wave for terminal distribution.
Auxilliary carrier allocation method according to the present invention comprises: target BS sends message to terminal, wherein, carries the information that target BS is the auxilliary carrier wave of terminal distribution in this message.
Preferably, above-mentioned message comprises: the multicarrier response message.
By above-mentioned at least one scheme of the present invention, can terminal from serving BS to the process that target BS switches, by serving BS is that terminal transmission target BS is the auxilliary carrier wave of terminal distribution, also can be in the process that the network of target BS reenters in terminal, or terminal is after target BS is finished network and reentered process, by target BS is the auxilliary carrier wave of terminal distribution, having solved can't be the problem of the auxilliary carrier wave of terminal distribution when terminal is switched in multicarrier system in the prior art, make terminal after inserting target BS, can use auxilliary carrier transmission business, improve the utilance of resource, avoided the problems such as transfer of data interruption of reallocating and assisting carrier wave and bring in the subsequent data transmission process.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the configuration diagram of multicarrier system in the correlation technique;
Fig. 2 is for switching to the flow chart of target BS from serving BS according to the terminal of the embodiment of the invention;
Fig. 3 is the flow chart according to embodiment of the invention method one;
Fig. 4 is the flow chart according to embodiment of the invention method two;
Fig. 5 is the flow chart according to embodiment of the invention method three;
Fig. 6 is the flow chart of embodiment one;
Fig. 7 is the flow chart of embodiment two;
Fig. 8 is the flow chart of embodiment three;
Fig. 9 is the flow chart of embodiment four;
Figure 10 is the flow chart of embodiment five;
Figure 11 is the flow chart of embodiment six.
Embodiment
Functional overview
In multicarrier system, after inserting target BS, can adopt the professional and control signaling of auxilliary carrier transmission in time in order to make terminal, need serving BS or target BS in handoff procedure, to be the auxilliary carrier wave of this terminal distribution.In embodiments of the present invention, can be when terminal send switching command message at serving BS, the one or more candidate target base station that send the serving BS recommendation to terminal are the information of the auxilliary carrier wave of terminal distribution according to the terminal information of obtaining from serving BS; Perhaps, reenter in the process or after finishing at the network of target BS in terminal, by target BS to the auxilliary carrier wave of terminal distribution.
Do not having under the situation about specifying, the terminal of indication is for supporting the terminal of multi-carrier operation in the embodiment of the invention, and the base station is for supporting the base station of multi-carrier operation, preferably, in embodiments of the present invention, terminal is advanced terminals (AMS), and the base station is advanced base station (ABS).
Under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.If do not conflict, feature can make up mutually among the embodiment of the invention and the embodiment.
Before the explanation embodiment of the invention, at first the terminal that the embodiment of the invention is related to multicarrier system is described from the flow process that serving BS switches to target BS.
Fig. 2 is the flow chart that switches to target BS from serving BS according to the terminal of the embodiment of the invention, as shown in Figure 2, switches to target BS from serving BS according to the terminal of the embodiment of the invention and mainly may further comprise the steps:
In specific implementation process, this step is optional, under the situation of initiatively being initiated to switch by terminal, needs to carry out this step, under the situation of initiatively being initiated to switch by serving BS, does not need to carry out this step.
Particularly, the neighbor base station that terminal can switch to according to one or more its hope of multi-carrier configuration information selection of the one or more neighbor base stations that obtain from neighboring broadcast messages is as candidate target base station, and the carrier wave that one or more its hope of selection switch under one or more candidate target base station of selecting is as the candidate target carrier wave; The information of one or more candidate target base station that terminal is selected oneself and the information of the candidate target carrier wave under each candidate target base station are carried in the above-mentioned request message and send to serving BS.Particularly, the information of each candidate target carrier wave that carries in this request message can comprise: the physics frequency point information of each candidate target carrier wave and/or the physical carrier of each candidate target carrier wave numbering, promptly can adopt each candidate target carrier wave of physics frequency point information and/or physical carrier number-mark.
Particularly, serving BS is after receiving above-mentioned request message, perhaps send switching command message to terminal on one's own initiative, at least carry following information in this switching command message: the information of one or more candidate target base station of recommending terminal that (1) serving BS is selected and the information of the one or more candidate target carrier waves under each candidate target base station from above-mentioned one or more neighbor base stations, wherein, the information of each candidate target carrier wave can comprise: the physics frequency point information of each candidate target carrier wave and/or the physical carrier of each candidate target carrier wave numbering, promptly can adopt physics frequency point information and/or physical carrier to number and identify each candidate carrier; (2) reenter pattern identification, whether this sign is used for indication network and reenters the process terminal and keep being connected with serving BS; (3) operate time on each candidate target carrier wave, this time indicating terminal is initiated the concrete moment that network reenters on this target carrier; (4) the available grade of service indication of each candidate target carrier wave.
In specific implementation process, select a base station as the target BS that switches in one or more candidate target carrier waves under one or more candidate target base station that terminal can be carried from above-mentioned request message and/or switching command message and each candidate target base station, simultaneously, select a carrier wave in one or more candidate target carrier waves of this target BS as the target carrier of switching, send above-mentioned switch indicating information then.
Particularly, at least comprise in the above-mentioned switch indicating information that terminal sends: information, the terminal of the action code word that begins to switch, the target BS that will switch to and target carrier is used to carry out the pairing carrier information in radio-frequency channel of switching, particularly, this carrier information can be physics frequency point information and/or physical carrier numbering;
Particularly, comprise at least in this ranging response message: in re-accessing the basic capability negotiating interacting message whether omissible indication information, registration message alternately whether omissible indication information, multi-carrier capability alternately whether omissible Indication message, the target BS indication information, the target BS that whether send basic capability negotiating response message initiatively whether send the indication information of registration reply message initiatively;
In addition, can also comprise in this ranging response message: basic capability negotiating message coding, registration message coding;
Switch to the flow process of target BS based on above-mentioned terminal from serving BS, the embodiment of the invention provides three kinds of auxilliary carrier allocation methods, and the process that is used for switching to from serving BS in terminal target BS is the auxilliary carrier wave of terminal distribution.Below respectively these three kinds of methods are described.
Method one: assist allocation of carriers by serving BS
In the method, serving BS and above-mentioned one or more target BS are mutual by backbone network, obtain the auxilliary carrier wave that distributes thereon for terminal.Serving BS carries the information that target BS is the auxilliary carrier wave of terminal distribution in the message that sends to terminal.In specific implementation process, serving BS can initiatively send this message (promptly being initiated to switch by serving BS), also can send this message (promptly being initiated to switch by terminal) behind the request message that receives the terminal transmission.
Fig. 3 is the flow chart according to embodiment of the invention method one, as shown in Figure 3, in the method, is that the auxilliary carrier wave of terminal distribution mainly may further comprise the steps by serving BS:
Step 301: this terminal information that one or more candidate target base station of terminal are obtained according to the method described in the above-mentioned steps 202 is the one or more auxilliary carrier waves of this terminal distribution, and information that will these one or more auxilliary carrier waves sends to serving BS;
Step 303: serving BS sends message to terminal, the one or more candidate target base station that carry the serving BS recommendation in this message are the information of one or more auxilliary carrier waves of terminal distribution, in specific implementation process, the information of the auxilliary carrier wave that carries in this message includes but not limited to one of following or its combination in any: the physics frequency point information of auxilliary carrier wave, the physical carrier numbering of auxilliary carrier wave, candidate target base station is the logic carrier index of auxilliary allocation of carriers, promptly can adopt physics frequency point information or physical carrier numbering that each auxilliary carrier wave is identified, be each auxilliary allocation of carriers logic carrier index simultaneously.
Terminal selects a base station as the target BS that switches from these one or more candidate target base station, simultaneously, selects a carrier wave in one or more candidate target carrier waves of this target BS as the target carrier of switching.Before network reentered, terminal obtained the information of this target BS for the auxilliary carrier wave of this terminal distribution from serving BS, and during switching, terminal can be finished network and reenter on the target carrier on the target BS, and activated the auxilliary carrier wave that has distributed.
In specific implementation process, serving BS can be provided with an activationary time parameter in above-mentioned message, if this parameter value is zero, activate the auxilliary carrier wave that distributes immediately after being illustrated in network insertion and finishing, parameter is non-vanishing, then activates auxilliary carrier wave when this activationary time arrives; If serving BS is not provided with the activationary time parameter, terminal can be thought after network insertion is finished and to activate the auxilliary carrier wave that distributes immediately.
In specific implementation process, the message of carrying the information of the auxilliary carrier wave that distributes for terminal comprises: switching command message in the step 204 of above-mentioned flow process or multicarrier response message, or other multicarrier message relevant with multicarrier.
If in above-mentioned steps 201, only comprise the configuration information of full configuration carrier wave of one or more neighbor base stations or terminal obtains neighbor base station from neighboring broadcast messages multi-carrier configuration information in the neighboring broadcast messages that serving BS sends, before then on target BS, activating auxilliary carrier wave, this method also comprises: terminal is carried out network when reentering or after finishing network and reentering at target BS, on target BS, obtain the multi-carrier configuration information of broadcasting, the request message that perhaps adopts clean culture is to the complete multi-carrier configuration information of target base station requests, be that terminal sends a request message to the target BS clean culture, the request target base station sends the complete multi-carrier configuration information of this target BS to terminal, target BS returns the configuration information of all multicarriers of this target BS to this terminal when receiving this request message.
Method two: reenter at network by target BS and to assist allocation of carriers in the process
In the method, being reentered in the process at network by target BS is that terminal distribution is assisted carrier wave.In embodiments of the present invention, network reenters process can reenter process (being the process of above-mentioned steps 205-step 207) from the network of serving BS to the target BS handoff procedure for terminal, also can reenter process from the network that idle pulley switches to normal mode of operation for terminal, in the present embodiment, target BS is terminal and determines the target BS that enters at last.
Fig. 4 is the flow chart according to embodiment of the invention method two, and as shown in Figure 4, target BS reenters in the process at network and mainly may further comprise the steps for the auxilliary carrier wave of terminal distribution:
Step 401: when terminal sends switch indicating information to serving BS, in switch indicating information, carry the indicating target base station and reenter the indication information of assisting carrier wave in the process for terminal distribution at network;
Step 403: terminal reenters in the process at the network of target BS, target BS sends message to this terminal, wherein, carry the information of target BS in this message for the auxilliary carrier wave of this terminal distribution, particularly, the information of the auxilliary carrier wave that carries in this message comprises one of following or its combination in any: the physics frequency point information of auxilliary carrier wave, the physical carrier numbering of auxilliary carrier wave, candidate target base station is the logic carrier index of auxilliary allocation of carriers, promptly can adopt physics frequency point information or physical carrier numbering that each auxilliary carrier wave is identified, be each auxilliary allocation of carriers logic carrier index simultaneously.
In specific implementation process, terminal is before target BS execution network reenters process, serving BS and target BS are undertaken alternately by backbone network, and serving BS sends to target BS with terminal information (multi-carrier capability information that comprises terminal), specifically as described in the above-mentioned step 202.Target BS according to this terminal information, is the auxilliary carrier wave of terminal distribution after obtaining terminal information, and carries the information into the auxilliary carrier wave of this terminal distribution in above-mentioned message.
In specific implementation process, if to the process that target BS switches, carry out the method that the embodiment of the invention provides from serving BS in terminal, then in above-mentioned steps 205, when terminal sends switch indicating information to serving BS, can in switch indicating information, carry the indicating target base station and reenter the indication information of assisting carrier wave in the process for terminal distribution at network, serving BS is after receiving this indication information, this indication information is sent to target BS, according to this indication information, target BS reenters at network and is the auxilliary carrier wave of terminal distribution in the process, and concurrent serving stated message; Perhaps, it initiatively is the auxilliary carrier wave of terminal distribution that target BS also can reenter in the process at network, and promptly above-mentioned steps 401 is optional.And,, then do not need execution in step 401 if reenter the method two that the enforcement embodiment of the invention provides the process from the network that idle pulley switches to normal mode of operation in terminal yet.
In specific implementation process, above-mentioned message includes but not limited to: ranging response message or, initiatively registration reply message, multicarrier response message or other multicarrier message relevant with multicarrier.
Particularly, if target BS carries the information of the auxilliary carrier wave that is distributed in ranging response message, then the target BS information that one of can be in the following manner will assist carrier wave is carried in the ranging response message:
(1) will assist the parameter item of the information of carrier wave as ranging response message;
(2) will assist the parameter item of the information of carrier wave as the basic capability negotiating message coding in the ranging response message;
(3) will assist the parameter item of the registration message coding in the information ranging response message of carrier wave.
In specific implementation process, reenter in the process at network, (being that target BS is when terminal sends above-mentioned message) can be provided with an activationary time parameter when target BS was the auxilliary carrier wave of terminal distribution, if this parameter value is zero, being illustrated in network reenters and activates auxilliary carrier wave immediately after finishing, parameter is non-vanishing, then activates auxilliary carrier wave when this activationary time arrives; If target BS is not provided with the activationary time parameter, terminal can be thought and reenters the auxilliary carrier wave that activate to distribute immediately after finishing at network.
Particularly, terminal has only been obtained the configuration information of the full configuration carrier wave of one or more neighbor base stations from the neighboring broadcast messages of serving BS, perhaps terminal does not obtain the multi-carrier configuration information of neighbor base station from neighboring broadcast messages, before then on target BS, activating auxilliary carrier wave, this method also comprises: terminal is carried out network when reentering or reentering the multi-carrier configuration information that obtains this target BS broadcasting after finishing on target BS at target BS, perhaps this terminal adopt clean culture request message to the complete multi-carrier configuration information of target base station requests, concrete similar to said method one.
Method three: after network reenters process, assist allocation of carriers by target BS
In the method, target BS is the auxilliary carrier wave of terminal distribution terminal (after being above-mentioned steps 207) after the network of this target BS reenters process, and at this moment, target BS has become the new serving BS of terminal.
Fig. 5 is the flow chart according to the auxilliary carrier allocation method of embodiment of the invention method three, and as shown in Figure 5, in the method, target BS mainly may further comprise the steps for the auxilliary carrier wave of terminal distribution after the network of this target BS reenters process in terminal:
Step 501: terminal sends a request message to target BS after network reenters process and finishes, and the request target base station assigns is assisted carrier wave;
Step 503: target BS sends response message to terminal, carry the information of one or more auxilliary carrier waves of promising this terminal distribution in this response message, particularly, the information of the auxilliary carrier wave that carries in this response message comprises one of following or its combination in any: the physical carrier numbering of the physics frequency point information of auxilliary carrier wave, auxilliary carrier wave, candidate target base station are the logic carrier index of auxilliary allocation of carriers, promptly can adopt physics frequency point information or physical carrier numbering that each auxilliary carrier wave is identified, be each auxilliary allocation of carriers logic carrier index simultaneously.
In specific implementation process, target BS can be when the request message that receiving terminal sends, and in response to this request message, sends above-mentioned response message to terminal, is the one or more auxilliary carrier waves of terminal distribution.Perhaps, it is the auxilliary carrier wave of terminal distribution that Current Serving BTS (being target BS) initiatively sends above-mentioned response message, and promptly above-mentioned steps 501 is optional.
In specific implementation process, above-mentioned request message can be multi-carrier requests message (AAI-MC-REQ) or other multicarrier message relevant with multicarrier, and above-mentioned response message can be multicarrier response message (AAI-MC-RSP) or other multicarrier message relevant with multicarrier.
In specific implementation process, terminal is before target BS execution network reenters process, serving BS and target BS are undertaken alternately by backbone network, and serving BS sends to target BS with terminal information (multi-carrier capability information that comprises terminal), specifically as described in the above-mentioned step 204.Target BS according to this terminal information, is the auxilliary carrier wave of terminal distribution after obtaining terminal information, and carries the information into the auxilliary carrier wave of this terminal distribution in above-mentioned message.
In specific implementation process, target BS can be provided with an activationary time parameter when being the auxilliary carrier wave of terminal distribution, if this parameter value is zero, activates auxilliary carrier wave when being illustrated in auxilliary allocation of carriers immediately, parameter is non-vanishing, then activates auxilliary carrier wave when this activationary time arrives; If target BS is not provided with the activationary time parameter, terminal can be thought the auxilliary carrier wave that activates distribution when auxilliary allocation of carriers immediately.
Particularly, similar to said method one with method two, if in above-mentioned steps 201, terminal has only been obtained the configuration information of the full configuration carrier wave of one or more neighbor base stations from neighboring broadcast messages, perhaps terminal does not obtain the multi-carrier configuration information of neighbor base station from neighboring broadcast messages, before then on target BS, activating auxilliary carrier wave, this method also comprises: terminal is obtained the multi-carrier configuration information of target BS broadcasting on target BS, perhaps, terminal sends the multi-carrier configuration information of the AAI-MC-REQ message request target BS of clean culture, after target BS receives this AAI-MC-REQ message, return AAI-MC-RSP message to terminal, and in this MC-RSP message, carry complete multi-carrier configuration information.
For further understanding the technique scheme that the embodiment of the invention provides, the technical scheme that the embodiment of the invention provides is described below by specific embodiment.
Embodiment one
Adopt said method one to be the auxilliary carrier wave of terminal distribution in the present embodiment, Fig. 6 is the flow chart of present embodiment, and as shown in Figure 6, in the present embodiment, serving BS is that the auxilliary carrier wave of terminal distribution mainly may further comprise the steps:
Step 601, terminal sends handoff request message to serving BS;
Step 603, serving BS receives above-mentioned handoff request message, send switching command message to terminal, wherein, carry in this switching command message: serving BS is that one or more candidate target base station that terminal is selected are the information of one or more auxilliary carrier waves of this terminal distribution according to the terminal information from serving BS or the acquisition of other network entities; Auxilliary carrier wave activationary time parameter if this parameter value is zero, activates auxilliary carrier wave after the expression network re-accesses and finishes immediately.Particularly, timer can be set, length of timer is this time parameter, after sending switching command message, starts this timer, when this timer arrives, activates the auxilliary carrier wave into this terminal distribution;
Step 605, terminal sends indication message to serving BS, wherein, carries the radio-frequency channel information that the target BS that will switch to and target carrier, terminal will use or the carrier information of radio-frequency channel correspondence in this indication message;
Step 607, terminal is carried out network and is reentered process on target carrier, at first find range, because target BS has obtained terminal information from backbone network, therefore, target BS can be constructed basic capability negotiating message coding, registration message coding and it is carried at and be sent to terminal in the ranging response message according to terminal information;
Step 609, terminal successfully receives the ranging response message that has capability negotiation and registration message coding that target BS sends, then network reenters and finishes, can set up data on this carrier wave connects, this carrier wave becomes the new main carrier of terminal, simultaneously, activate according to being provided with of activationary time parameter before by auxilliary carrier wave that serving BS distributed.
Embodiment two
In the present embodiment, adopt said method two to be the auxilliary carrier wave of terminal distribution, and target BS carry the auxilliary carrier wave into terminal distribution according to the indication that terminal sends in ranging response message.
Fig. 7 is the flow chart of present embodiment, and as shown in Figure 7, in the present embodiment, target BS is that the auxilliary carrier wave of terminal distribution mainly may further comprise the steps:
Step 701, terminal sends handoff request message to serving BS;
Step 703, serving BS receive above-mentioned handoff request message, send switching command message to terminal;
Step 705, terminal sends switch indicating information to serving BS, wherein, carry the radio-frequency channel information that the target BS that will switch to and target carrier, terminal will use or the carrier information of radio-frequency channel correspondence in this switch indicating information, and, also carry indication in this switch indicating information and wish that target BS reenters the indication information of assisting carrier wave in the process for this terminal distribution at network;
Step 707, terminal is carried out network and is reentered process on target carrier, at first find range, because target BS has obtained terminal information from backbone network, therefore, target BS can be according to this terminal information structure basic capability negotiating message coding, registration message coding also is carried at it and sends to terminal in ranging response message, and, because indicating, terminal wishes that target BS reenters the auxilliary carrier wave of distribution in the process at network in above-mentioned switch indicating information, therefore, target BS also carries the information of the auxilliary carrier wave of distributing to this terminal in this ranging response message.In the present embodiment, target BS is provided with auxilliary carrier wave activationary time parameter, and this parameter value is zero, is illustrated in network and reenters and activate auxilliary carrier wave immediately after finishing;
Step 709, terminal successfully receives the ranging response message that has capability negotiation and registration message coding that target BS sends and represents then that network reenters and finish, can set up data on this carrier wave connects, this carrier wave becomes the new main carrier of terminal, simultaneously, activation is set by auxilliary carrier wave that target BS distributed according to the activationary time parameter.
Embodiment three
In the present embodiment, adopt said method two to be the auxilliary carrier wave of terminal distribution, and target BS carry the auxilliary carrier wave into terminal distribution according to the indication that terminal sends in registration reply message.
Fig. 8 is the flow chart of present embodiment, and as shown in Figure 8, in the present embodiment, target BS is that the auxilliary carrier wave of terminal distribution mainly may further comprise the steps:
Step 801, terminal sends handoff request message to serving BS;
Step 803, serving BS sends switching command message to terminal;
Step 805, terminal sends switch indicating information to serving BS, wherein, carry the radio-frequency channel information that the target BS that will switch to and target carrier, terminal will use or the carrier information of radio-frequency channel correspondence in this switch indicating information, and, also carry indication in this switch indicating information and wish that target BS reenters the indication information that distributes auxilliary carrier wave in the process for it at network;
Step 807, terminal is carried out network and is reentered process on target carrier, at first find range, because target BS has obtained terminal information from backbone network, target BS can be constructed basic capability negotiating response message initiatively in view of the above, registration reply message initiatively sends to terminal, and, because indicating, terminal wishes that target BS reenters the auxilliary carrier wave of distribution in the process at network in above-mentioned switch indicating information, therefore, target BS carries the information of the auxilliary carrier wave of distributing to terminal in registration reply message.In the present embodiment, target BS is provided with non-vanishing activationary time parameter, is illustrated in parameter and specifies the auxilliary carrier wave of activation constantly, and is concrete similar to embodiment two;
Step 809, terminal receives that successfully registration reply message that target BS sends represents then that network reenters and finish that can set up data and connect on this carrier wave, this carrier wave becomes the new main carrier of terminal, simultaneously, activation is set by auxilliary carrier wave that target BS distributed according to the activationary time parameter.
Embodiment four
In the present embodiment, adopt said method two to be the auxilliary carrier wave of terminal distribution, and target BS initiatively carry the auxilliary carrier wave into terminal distribution in ranging response message.
Fig. 9 is the flow chart of present embodiment, and as shown in Figure 9, in the present embodiment, target BS is that the auxilliary carrier wave of terminal distribution mainly may further comprise the steps:
Step 901, terminal send handoff request message to serving BS;
Step 903, serving BS send switching command message to terminal;
Step 905, terminal send indication message to serving BS, wherein carry the target BS and the target carrier that will switch to, the radio-frequency channel information that terminal will be used or the carrier information of radio-frequency channel correspondence;
Step 907, terminal is carried out network and is reentered process on target carrier, at first find range, because target BS has obtained terminal information from backbone network, target BS can be constructed basic capability negotiating message coding, registration message coding in view of the above and it is carried at and be sent to terminal in the ranging response message, target BS can initiatively be that terminal is assisted allocation of carriers, carries the information of the auxilliary carrier wave that is distributed in ranging response message.In the present embodiment, target BS is provided with carrier wave activationary time parameter, and this moment, this parameter value was non-vanishing, is illustrated in the auxilliary carrier wave of fixed time activation.
Step 909, terminal receives that successfully the ranging response message that has the registration message coding that target BS sends represents then that network reenters and finish, can set up data on this carrier wave connects, this carrier wave becomes the new main carrier of terminal, simultaneously, activation is set by auxilliary carrier wave that target BS distributed according to the activationary time parameter.
Embodiment five
In the present embodiment, adopt said method two to be the auxilliary carrier wave of terminal distribution, and target BS initiatively carry the auxilliary carrier wave into terminal distribution in registration reply message.
Figure 10 is the flow chart of present embodiment, and as shown in figure 10, in the present embodiment, target BS is that the auxilliary carrier wave of terminal distribution mainly may further comprise the steps:
Step 101, terminal send handoff request message to serving BS;
Step 103, serving BS send switching command message to terminal;
Step 105, terminal send indication message to serving BS, wherein carry the target BS and the target carrier that will switch to, the radio-frequency channel information that terminal will be used or the carrier information of radio-frequency channel correspondence;
Step 107, terminal is carried out network and is reentered process on target carrier, at first find range, because target BS has obtained terminal information from backbone network, target BS can be constructed basic capability negotiating response message initiatively in view of the above, registration reply message initiatively sends to terminal, simultaneously, target BS can carry auxilliary carrier list on one's own initiative for the auxilliary carrier wave of terminal distribution in registration reply message.In the present embodiment, the activationary time parameter value of target BS setting is zero, is illustrated in network and reenters and activate auxilliary carrier wave immediately after finishing.
Step 109, terminal receives that successfully registration reply message that target BS sends represents then that network reenters and finish that can set up data and connect on this carrier wave, this carrier wave becomes the new main carrier of terminal, simultaneously, activation is set by auxilliary carrier wave that target BS distributed according to the activationary time parameter.
Embodiment six
In the present embodiment, adopt said method three to be the auxilliary carrier wave of terminal distribution, and, be the auxilliary carrier wave of terminal distribution by the terminal request target BS.
Figure 11 is the flow chart of present embodiment, and as shown in figure 11, in the present embodiment, target BS is that the auxilliary carrier wave of terminal distribution mainly may further comprise the steps:
Step 1101, terminal send handoff request message to serving BS;
Step 1103, serving BS send switching command message to terminal;
Step 1105, terminal send indication message to serving BS, wherein carry the target BS and the target carrier that will switch to, the radio-frequency channel information that terminal will be used or the carrier information of radio-frequency channel correspondence;
Step 1107, terminal is carried out network and is reentered process on target carrier, at first find range, because target BS has obtained terminal information from backbone network, target BS can be constructed basic capability negotiating response message initiatively in view of the above, registration reply message initiatively sends to terminal;
Step 1109, terminal receive that successfully registration reply message that target BS sends represents then that network reenters and finish that can set up data and connect on this carrier wave, this carrier wave becomes the new main carrier of terminal;
Step 1111: terminal sends multi-carrier requests message (AAI-MC-REQ) request Current Serving BTS and distributes auxilliary carrier wave;
Step 1113: Current Serving BTS is received the request of terminal, and in response to this request, adopting multicarrier response (AAI-MC-RSP) message is the one or more auxilliary carrier waves of terminal distribution; In the present embodiment, target BS is provided with the activationary time parameter, and parameter value is zero, activates auxilliary carrier wave when being illustrated in distribution immediately;
Step 1115: the auxilliary carrier wave of distribution is activated, and the auxilliary carrier wave between terminal and the target BS connects.
In sum, by means of technical scheme of the present invention, by auxilliary carrier allocation method of the present invention, make terminal reenter the one or more auxilliary carrier wave that can obtain base station assigns in the process to target BS switching or network, simplify system operation, avoided the problems such as transfer of data interruption of reallocating and assisting carrier wave and bring in the subsequent data transmission process simultaneously.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (30)
1. an auxilliary carrier allocation method is used for being described terminal distribution auxilliary carrier wave from serving BS to the process that target BS switches in terminal, it is characterized in that described method comprises:
Described serving BS sends message to described terminal, wherein, carries the information that one or more target BS are the auxilliary carrier wave of described terminal distribution in the described message.
2. method according to claim 1 is characterized in that, described one or more target BS are that described serving BS is one or more candidate target base station that described terminal is selected.
3. method according to claim 2 is characterized in that, also carries the information of described one or more target BS and the information of the one or more target carrier under described one or more target BS in the described message.
4. method according to claim 3 is characterized in that, described one or more target carrier are that described serving BS is the candidate target carrier wave that described terminal is selected.
5. method according to claim 3 is characterized in that, after described terminal sent described message, described method also comprised at described serving BS:
Described terminal receives described message, the information that to obtain described one or more target BS from described message be the auxilliary carrier wave of described terminal distribution.
6. method according to claim 2 is characterized in that, the activationary time that also to carry described one or more target BS in the described message be the auxilliary carrier wave of described terminal distribution.
7. method according to claim 2, it is characterized in that the information of described auxilliary carrier wave comprises one of following or its combination in any: the physical carrier numbering of the physics frequency point information of auxilliary carrier wave, auxilliary carrier wave, candidate target base station are the logic carrier index of auxilliary allocation of carriers.
8. according to each described method in the claim 2 to 7, it is characterized in that before described serving BS sent described message, described method also comprised:
Described serving BS receives the request message that described terminal sends, wherein, carry described terminal in the described request message and select the information of the one or more candidate target carrier waves under these one or more candidate target base station that the information of one or more candidate target base station and described terminal select, wherein, the information of these one or more candidate target carrier waves comprises: the physics frequency point information of each candidate target carrier wave and/or the physical carrier of each target carrier numbering.
9. method according to claim 8 is characterized in that, after described terminal received the described message of described serving BS transmission, described method also comprised:
Described terminal sends Indication message to initiate switching to described serving BS, wherein, described Indication message carries described terminal and determines that the information of the target BS that switches to and described terminal determine the information of the target carrier that switches to, this target BS is that described serving BS is a candidate base station in one or more candidate target base station of selecting of the one or more candidate target BS selected of described terminal and/or described terminal, and this target carrier is a candidate target carrier wave in one or more candidate target carrier waves of selecting of the one or more candidate target carrier waves selected of described terminal and/or described terminal for described serving BS under this target BS.
10. method according to claim 9 is characterized in that, before described serving BS sent described message, described method also comprised:
Described terminal receives the neighboring broadcast messages from described serving BS, obtains the multi-carrier configuration information of the one or more neighbor base stations that carry in the described neighboring broadcast messages.
11. method according to claim 10, it is characterized in that, if only carry the configuration information of the full configuration carrier wave of described one or more neighbor base stations in the described neighboring broadcast messages, perhaps terminal does not receive the multi-carrier configuration information of neighbor base station, then before the described target BS of activation was the auxilliary carrier wave of described terminal distribution, described method also comprised:
The multi-carrier configuration information that described terminal carries out obtaining when network reenters described target BS broadcasting at described target BS; Perhaps
Described terminal reenters at network and sends a request message to described target BS after finishing, and asks all multi-carrier configuration informations of described target BS.
12., it is characterized in that before described terminal sent described message, described method also comprised at described serving BS according to each described method in the claim 2 to 7:
Described serving BS and described one or more candidate target base station are undertaken alternately by backbone network, described terminal information is sent to described one or more candidate target base station, wherein, described terminal information comprises: the multi-carrier capability information of described terminal;
Described one or more candidate target base station is the auxilliary carrier wave of described terminal distribution according to obtaining described terminal information, and the information of described auxilliary carrier wave is sent to described serving BS by backbone network.
13. method according to claim 1, described message comprises: switching command message or multicarrier response message.
14. an auxilliary carrier allocation method, being used for terminal is the auxilliary carrier wave of described terminal distribution when target BS execution network reenters process, it is characterized in that described method comprises:
Described target BS sends message to described terminal, wherein, carries the information that described target BS is the auxilliary carrier wave of described terminal distribution in the described message.
15. method according to claim 14 is characterized in that, it is one of following that described message comprises: ranging response message, registration reply message, multicarrier response message.
16. method according to claim 15 is characterized in that, if described message is ranging response message, then the information of described auxilliary carrier wave one of can be in the following ways be carried in the described ranging response message:
The parameter item of described ranging response message;
The parameter item of the basic capability negotiating message coding in the described ranging response message;
The parameter item of the registration coding in the described ranging response message.
17. method according to claim 14 is characterized in that, after described terminal sent described message, described method also comprised at described target BS:
Described terminal receives described message, and activating described target BS is the auxilliary carrier wave of described terminal distribution; Or
Described terminal receives described message, obtains the activationary time that carries in the described message, and when described activationary time arrived, activating described target BS was the auxilliary carrier wave of described terminal distribution.
18. method according to claim 17 is characterized in that,
Described terminal is before target BS execution network reenters process, and described method also comprises:
Described terminal receives the neighboring broadcast messages from serving BS, obtains the multi-carrier configuration information of the one or more neighbor base stations that carry in the described neighboring broadcast messages;
If only carry the configuration information of the full configuration carrier wave of described one or more neighbor base stations in the described neighboring broadcast messages, perhaps terminal does not receive the multi-carrier configuration information of neighbor base station, then before the described target BS of activation was the auxilliary carrier wave of described terminal distribution, described method also comprised:
Described terminal is carried out network when reentering at described target BS, obtains the multi-carrier configuration information of described target BS broadcasting; Perhaps
Described terminal reenters at network and sends a request message to described target BS after finishing, and asks all multi-carrier configuration informations of described target BS.
19. according to each described method in the claim 15 to 18, it is characterized in that the information of the described auxilliary carrier wave that carries in the described message comprises one of following or its combination in any: the physical carrier numbering of the physics frequency point information of auxilliary carrier wave, auxilliary carrier wave, target BS are the logic carrier index of auxilliary allocation of carriers.
20. according to the described method of claim 15 to 18, it is characterized in that, described network reenters process and comprises: described terminal reenters process from the network of serving BS to the process that target BS switches, or described terminal reenters process from the network that idle pulley switches to normal manipulation mode.
21. method according to claim 20, it is characterized in that, reentering process at described network is that described terminal reenters under the situation of process from the network of serving BS to the process that target BS switches, before described terminal sent described message, described method also comprised at described target BS:
Described terminal sends switch indicating information to serving BS, wherein, carries the described target BS of indication indication information for the auxilliary carrier wave of described terminal distribution in the process that network reenters in the described switch indicating information;
Described target BS enters at network according to indication information and is the auxilliary carrier wave of described terminal distribution in the process.
22., it is characterized in that described terminal is before target BS execution network reenters process according to each described method in the claim 15 to 18, described method also comprises:
Described serving BS and described target BS are undertaken alternately described terminal information being sent to described target BS by backbone network, and wherein, described terminal information comprises: the multi-carrier capability information of described terminal;
Described target BS is the auxilliary carrier wave of described terminal distribution according to obtaining described terminal information.
23. an auxilliary carrier allocation method is used for terminal and finishes network at target BS and reenter the back and be the auxilliary carrier wave of described terminal distribution, it is characterized in that described method comprises:
Described target BS sends message to described terminal, wherein, carries the information that described target BS is the auxilliary carrier wave of described terminal distribution in the described message.
24. method according to claim 23 is characterized in that, described message comprises: the multicarrier response message.
25. method according to claim 23, it is characterized in that the information of the described auxilliary carrier wave that carries in the described message comprises one of following or its combination in any: the physical carrier numbering of the physics frequency point information of auxilliary carrier wave, auxilliary carrier wave, target BS are the logic carrier index of auxilliary allocation of carriers.
26. method according to claim 23 is characterized in that, described target BS is after described terminal sends described message, and described method also comprises:
Described terminal receives described message, and activating described target BS is the described auxilliary carrier wave of described terminal distribution; Or
Described terminal receives described message, obtains the activationary time that carries in the described message, and when described activationary time arrived, activating described target BS was the described auxilliary carrier wave of described terminal distribution.
27. method according to claim 26 is characterized in that,
Described terminal is finished before network reenters at described target BS, and described method also comprises:
Described terminal receives the neighboring broadcast messages from serving BS, obtains the multi-carrier configuration information of the one or more neighbor base stations that carry in the described neighboring broadcast messages;
If only carry the configuration information of the full configuration carrier wave of described one or more neighbor base stations in the described neighboring broadcast messages, perhaps terminal does not receive the multi-carrier configuration information of neighbor base station, then before the described target BS of activation was the auxilliary carrier wave of described terminal distribution, described method also comprised:
Described terminal is carried out network when reentering at described target BS, obtains the multi-carrier configuration information of described target BS broadcasting; Perhaps
Described terminal sends a request message to described target BS after finishing reentering, and asks the configuration information of all multicarriers of described target BS.
28., it is characterized in that before described terminal sent described message, described method also comprised at described target BS according to each described method in the claim 23 to 27:
Described terminal sends a request message to described target BS, and asking described target BS is the auxilliary carrier wave of described terminal distribution.
29. method according to claim 28 is characterized in that, described request message comprises: multi-carrier requests message.
30., it is characterized in that described terminal is finished before network reenters at described target BS according to the described method of claim 23 to 27, described method also comprises:
Described serving BS and described target BS are undertaken alternately described terminal information being sent to described target BS by backbone network, and wherein, described terminal information comprises: the multi-carrier capability information of described terminal;
Described target BS is the auxilliary carrier wave of described terminal distribution according to obtaining described terminal information.
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| CN200910158919.2A CN101945452B (en) | 2009-07-07 | auxiliary carrier allocation method | |
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| CN200910158919.2A CN101945452B (en) | 2009-07-07 | auxiliary carrier allocation method |
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