CN1951036A - Performing handover by deferring ip address establishment - Google Patents
Performing handover by deferring ip address establishment Download PDFInfo
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- CN1951036A CN1951036A CN200580014578.1A CN200580014578A CN1951036A CN 1951036 A CN1951036 A CN 1951036A CN 200580014578 A CN200580014578 A CN 200580014578A CN 1951036 A CN1951036 A CN 1951036A
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Abstract
In a broadband wireless access system, when handover is performed while receiving data, a method of deferring IP address establishment procedures is provided to allow such data to be delivered between the base stations. When the terminal receiving downlink data moves from a first base station region to a second base station region, the first base station delivers the downlink data to the second base station, and the second base station uses a particular message to inform that there is data to be delivered to the terminal such that the IP address establishment of the terminal is deferred.
Description
Technical field
The present invention relates to keep the successional method of data, services in the BWA, particularly set up the method for the IP address of mobile radio station, be used between transfer period or idle pulley maintenance data, services continuity.
Background technology
Usually, in BWA, the idle pulley of supporting to be used to move (or fixing) terminal (for example mobile radio station, mobile subscriber station (MSS), user terminal, subscriber equipment (UE) or the like) is so that minimizing power dissipation.In idle pulley, ' paging zone ' is defined by being called the handled whole zone, a plurality of base stations of ' paging group ', and all base stations that are included in the identical paging zone have identical paging cycle value (paging _ cycle, Paging_Cycle) and the paging offset value (paging _ skew, Paging_Offset).
Terminal can ask the base station changing over idle pulley, and the paging zone sign (paging group ID) that it is transmitted in the base station changes into idle mode state to allow this terminal for terminal with paging cycle and the paging offset relevant with it.During the idle pulley, based on the paging that transmits with broadcasting format from the base station on each paging cycle, terminal can determine whether to keep or finish its idle pulley.
In addition, when having the business that the terminal that need be in idle pulley transmits (for example data, grouping or the like), terminal can finish its idle pulley at any time.In addition, when the terminal that is in idle pulley for some reason such as moving in another paging zone, lost synchronous or the like, in the cycle time of setting not during paging receiving, then be through with its idle pulley of terminal.
Below, with the method for explaining that terminal is converted to the process of idle pulley and sets up the prior art of IP address when down link data exists.
Yet in Fig. 1, definition transmits the downlink business (data) that received by the terminal method to the base station (BS) of registering in the prior art, just, from previous base station (serving BS broadcasts) to new base station (target BS).In addition, even defined the method that transmits data between the base station, when terminal rebulids the IP address, the angle of the application program from terminal, the data of transmission also will be useless.
For example, in Fig. 1, if being in the terminal of idle pulley moves into paging zone and is in the zone of another base station BS # 3, registration discharges so that when initially being converted to the base station BS # 1 of idle pulley when down link data arrive to be carried out, and base station BS #3 enters to carry out network by beep-page message notice terminal.
Then, data need be sent to the base station # 3 of current paging receiving from the base station BS # 1 that is converted to idle pulley of terminal initial, but prior art does not define the method for this transmission.
In addition, even solved above-mentioned problem, as shown in Figure 2, in the prior art, because when having downlink traffic (data), terminal is carried out the IP address based on paging receiving and is set up (or rebuliding), from the viewpoint of terminal, the data of reception are useless.
Thereby in the aforesaid operations of prior art, when existing when need be sent to the business (data) of the terminal that is in idle pulley, definition receives data and terminal is not carried out the method that IP sets up process.
Simultaneously, when carry out switching in the BWA, terminal discharge be in service in being connected of base station (serving BS broadcasts), and carry out the switching of the target BS (target BS) that will switch to.When terminal is carried out switching, portable terminal switches designator (MOB-HO-IND) and is sent to serving BS broadcasts, if and to switch indicator type (HO_IND_type) value be ' 00 ', this means that serving BS broadcasts is released (serving BS broadcasts release, Serving BS Release).
In the prior art, be ' 00 ' if switch indicator type (HO_IND_type) value, serving BS broadcasts discharges all connections, and can be left in the basket about the state machine and the MAC PDU (protocol Data Unit) of the media control layer (MAC) of terminal.In addition, defined serving BS broadcasts can transmit mac state machine and MAC PDU to target BS (target BS) so that service continuity, maybe can be left in the basket by request through the trunk message (backbone message) of target BS.Yet, also do not have prescribed terminal to receive the concrete operations of these required execution.
In view of the above, the present invention is defined in terminal and has moved reception afterwards is sent to the data of target BS by previous base station operation.
Fig. 3 and 4 has shown two examples that the portable terminal execution is switched.Shown in Fig. 3 and 4, in handoff procedure according to the request of the request of terminal or base station, after terminal is carried out the initialization procedure that switches, (for example switch designator, MOB HO Indication) is sent to current reception serving base station (serving BS), and discharges and the getting in touch (connection) of reception serving base station BS#1.After this, terminal is carried out remaining process that is used to insert target BS BS#3, and just, paging and initial network enter.
Fig. 5 has shown the form of switching designator (MOB HO Indication).When discharge with reception serving base station BS# 1 get in touch (connection) time, HO_IND_type is set to ' 00 '.
Summary of the invention
Technical problem
Yet in the idle pulley of prior art, if when terminal is carried out switching, serving BS transfers data to target BS, if the terminal that moves during Data Receiving rebulids the IP address, the data that receive become useless.In other words, as shown in Figure 2, no matter whether have the data that are transmitted after switching, terminal is carried out the IP address immediately and is set up, even and the data of transmission be sent to terminal, the viewpoint of the application program from terminal, such data also are useless.Therefore, in the case, need clearly definition should carry out the time that the IP address is set up, but prior art fail to accomplish this point.
Technical solution
At prior art problems, when carrying out the switching of terminal (when terminal changes its operator scheme), should keep data continuity, also need suitable execution IP address to set up for BWA simultaneously to guarantee communication normally between terminal and the network.
In BWA, when be in idle pulley move or fixed terminal has the down link data that will receive maybe when receiving these data and carry out switching simultaneously, IP sets up the address that process is postponed (delay) so that correctly transmit these data between the base station.
Description of drawings
Fig. 1 shown according to prior art when mobile radio station is converted to idle pulley the IP address rebulid operation.
Fig. 2 has shown according to prior art and has changed to receiving mode maybe when switching rebuliding of IP address when taking place when the mobile radio station of idle pulley.
Fig. 3 has shown based on the example of carrying out switching from the request of mobile radio station.
Fig. 4 has shown based on the example of carrying out switching from the request of base station.
Fig. 5 has shown the form according to the switching designator of prior art.
Fig. 6 has shown the form that is used for data transfer messages of the present invention.
Fig. 7 has shown and has been used for the form that transfer of data of the present invention stops message.
Fig. 8 has shown the example that is used for enrollment response message of the present invention.
Fig. 9 has shown the example according to ranging response message of the present invention (ranging responsemessage).
Figure 10 has shown the method that transmits data and postpone the IP address assignment of mobile radio station according to first embodiment of the invention between the base station.
Figure 11 has shown the form that is used for data transmission designator of the present invention.
Figure 12 has shown the example according to register response of the present invention (RNG RSP) message coding.
Figure 13 has shown the method that transmits data and postpone the IP address assignment of mobile radio station between the base station according to first embodiment of the invention, has shown the IP address foundation when the base station can not notify mobile radio station whether can data to transmit clearly.
Figure 14 has shown the method for second embodiment of the invention, wherein sets up when carry out the IP address when there is not clear and definite data transfer messages in the time durations of determining from the base station.
Figure 15 has shown the method for second embodiment of the invention, wherein when the base station can be clear and definite the notice mobile radio station carry out the IP address when whether can data transmitting and set up.
Figure 16 has shown the method for second embodiment of the invention, wherein based on the example from the request of the mobile radio station process that is used for the data transmission after serving BS sends designator.
Embodiment
To explain the preferred embodiments of the present invention now.Yet, it will be understood by those skilled in the art that characteristics of the present invention are not only limited to embodiment described herein.
The present invention relates to the research and development that various IEEE working group carries out, such as IEEE802.16, therefore, wherein included theory and instruction can be applicable to characteristic of the present invention.In addition, owing to make various effort to realize the interworking of the different type network and the communication technology, such as the compatibility that realizes between IEEE network and the cellular network (such as the third generation (3G) network), can clearly understand, in realizing these compatibility, also can use the present invention.
Consider the communication protocol of relevant wireless access system on network layer, to allow the correct data packet communications through the internet, the addressing and the routing iinformation of necessity that Internet protocol (IP) is provided for dividing into groups.Here, each equipment that connects through the internet (for example subscriber equipment, mobile handset, wireless connectivity equipment or the like) need set up unique IP address in case this equipment by correct identification with distinguish over miscellaneous equipment.
Developed the Internet protocol that is known as IP version 4 (IPv4) and IP version 6 (IPv6).Owing to utilize the 32-bit address, have been found that each equipment that is connected with the internet because of the increase of Internet traffic popularization needs its unique IP address, IPv4 has limitation.Same, because available 32-bit addresses will be used up soon, developed enhancement mode, IPv6 just, it utilizes the 128-bit addresses.
Yet the fact that user terminal can have mobility (for example portable terminal) makes the IP address set up difficulty more.For example, for supporting mobility, user terminal can stand to switch, and the terminal of being served by a base station that covers definite zone moves to reposition and need be served by the different base station that covers that reposition whereby.In other words, it is that the mobile radio station of the part of first subnet (being the part of network) moves to second subnet (being another part of network).Another example is, when user terminal its mode of operation when idle pulley is changed into receiving mode, described idle pulley is an example of saving power mode of operation, and this is very important, has preserved its limited battery electric power because have ambulant user terminal.
Change in the situation in above-mentioned switching or idle pulley, must on reasonable time, carry out the IP address and set up so that user terminal can receive seamless Data Receiving.
At prior art problems, the portable terminal of idle pulley moves in the BWA in the zone of second base station in the paging zone of first base station therein, the method of setting up the IP address of portable terminal according to the present invention comprises: when down link data arrived first base station, this down link data was transmitted to second base station by first message in first base station; There are the data that will be transmitted in second base station by the second message informing portable terminal; With set up according to the second message delay IP address so that allow Data Receiving on the portable terminal.
Preferably, first message is data transfer messages.Preferably, the IP address method for building up of terminal further comprises step: after the foundation of IP address is finished, send transfer of data by first base station and stop message to second base station.Preferably, second message is enrollment response message or ranging response message.In the case, enrollment response message comprises that the data that will be transmitted by the notice existence postpone the parameter of the IP address foundation of terminal.
For realizing above-mentioned purpose, the portable terminal of receiving downlink data moves in the BWA in the zone of second base station in the paging zone that is in first base station therein, the method of setting up the IP address of portable terminal according to the present invention comprises: be sent to first base station by switching designator from portable terminal, whether down link data can be transmitted to second base station in first base station in inquiry; Whether designator notice portable terminal is transmitted through data in first base station can data transmit and transmit down link data to second base station; With transmit designator after second base station has received down link data based on having received data, carry out the IP address and rebulid process.
Preferably, if first base station is the notification data transfer capability clearly, if or data transmission designator was not received in the time of determining amount, then the initial network of portable terminal execution enters, arrive the quantitative really time and carry out the IP address then and rebulid process Deng being ready to use in receiving downlink data.
For realizing above-mentioned purpose, the portable terminal of receiving downlink data moves in the BWA in the zone of second base station in the paging zone that is in first base station therein, and the method for setting up the IP address of portable terminal according to the present invention comprises: portable terminal transmits one and transmits designator to first base station; First base station is transmitted designator through data and is transmitted down link data to second base station; There are the data that are sent to this portable terminal by second base station through first message informing by portable terminal; With according to first message after the time that the IP address is rebulid the amount postpone determined, from the second base station receiving downlink data.
Preferably, first message is enrollment response message (registration response message) or ranging response message.
In BWA, as first embodiment, the present invention advised when exist will by be in idle pulley fixing/postpone (or delay) IP address in the method for the transmission data between the base station with when portable terminal is changed into the receiving mode that is used for Data Receiving during down link data that portable terminal received to set up the method for process.
In other words, the present invention has defined: when portable terminal is converted to idle pulley and move to the zone of another base station from the zone of the base station of carrying out transition process, after data arrive the base station of carrying out initial idle pulley transition process, transfer data to the process of current base station.In addition, if when terminal receives the message that transmits by said process the IP address modification, these data will be useless and therefore the present invention defined these processes and made that not carrying out the IP address in said circumstances sets up process.
In another embodiment, the invention provides a kind of method that when during Data Receiving, carry out switching, between the base station, transmits data and a kind of after portable terminal moves to reposition deferring ip address set up the method for process.
In other words, in BWA, the invention provides a kind of method, wherein between the transfer period of portable terminal, the current serving base station (serving BS broadcasts) that is in is sent to the target BS (target BS) that will switch to it with the data that this portable terminal is receiving by backbone network, to guarantee the continuity of service after switching.
In addition, the invention provides a kind of method, it can receive the data while that is sent to new base station from previous base station at portable terminal after carrying out switching, postpones (postponing or sluggishness) IP address and sets up process.
In addition, the invention provides a kind of method, it allows portable terminal can be received after moving by the data that know whether current quilt clearly and clearly receive to carry out switching and defined the message that is sent to target BS from serving BS.
In addition, when portable terminal was finished switching, the present invention had defined the message that a kind of target BS sends to serving BS, and whether it shows owing to finished switching should stop the data transmission.
At first, with the method for explaining according to the IP address assignment of the method that between the base station, transmits data of first embodiment of the invention and delay (postponement) terminal.
When carrying out switching, serving BS broadcasts can abandon the MAC SDU (service data unit) relevant with MSS or transmit and be used for professional continuous MAC SDU.Yet whether MSS should be forwarded to target BS to MAC SDU according to the type of service decision.Therefore, the present invention has advised that a kind of MSS of being used for request has the new method of the service MS release of data forwarding.For this reason, the present invention's suggestion, a HO_IND type who is used for MSS by interpolation revises the MOB-HO-IND message format to decide service continuously by the MAC SDU that transmits relevant MSS, as shown in Figure 5.
Under the situation of data forwarding, if MSS rebulids the IP connection after switching, because the IP address modification, the data of forwarding become useless.Therefore, if there are the data of transmitting from serving BS broadcasts, MSS should postpone IP and rebulid.
If whether the BS decision transmits data MSS does not know this decision, MSS has the MOB_HO_IND MACManagement message of the HO_IND_type value of indicating serving BS broadcasts release to target BS by transmission, ask serving BS broadcasts to discharge, whether this BS decision will be used for the data forwarding of MSS to target BS.
Because MSS does not know data that whether serving BS broadcasts decision transmits MSS to target BS, MSS waits for some preset times of data of any forwarding after switching.If received data and the destination is old IP address from new BS within the predetermined time, MSS can select deferring ip address to rebulid, up to conversation end.If MSS selects end session, then it sets up the IP connectivity to obtain new IP address.
When MSS rebulid the IP connectivity, new BS can send Stop_Data_Forwarding trunk message BS until old.When serving BS broadcasts received Stop_Data_Forwarding trunk message, BS can closeall connection and is abandoned state machine and the MAC SDU of relevant MSS.
If MSS can ask serving BS broadcasts to discharge with data forwarding clearly, then MSS does not need to wait for that preset time checks the data that whether received any forwarding after switching.In the case, its data forwarding ability of this BS instruct MS S.If MSS has received indication supporting data forwarding, MSS postpones rebuliding that IP connects, and if MSS has received an indication not supporting data forwarding, then MSS rebulids IP and connects and do not wait for preset time after switching.
After MSS rebulid the IP connection, new BS can send Stop_Data_Forwarding trunk message to old BS.When serving BS broadcasts had received Stop_Data_Forwarding message, BS can closeall connection and is abandoned state machine and the MAC SDU of relevant MSS.
If can be clear and definite the MSS that transmits of request msg have the MOB_HO_IND MAC Management message of the HO_IND type value that the expression serving BS broadcasts discharges by transmission, ask serving BS broadcasts release, MSS can not notice whether data are forwarded to target BS.Finish as long as switch, this MSS just begins IP and rebulids, and to new BS registration.
Handoff request/response shake hands finish after, MSS can begin actual switching (HO).On some stages during HO handles, MSS utilizes or does not utilize the option of data forwarding to interrupt utilizing the service of serving BS broadcasts.This be by, transmit to send for free of data and to have the HO_IND_type value MOB-HO-IND MACManagement message that the expression serving BS broadcasts discharges, or data have the serving BS broadcasts release of data forwarding by expression the MOB-HO-IND MAC Management message of HO_IND_type value realizes for transmitting to target BS.
If the HO_IND_type field has indicated serving BS broadcasts release, BS can closeall connection and is abandoned mac state machine and the MAC PDU of relevant MSS, if and HO_IND type field has indicated the serving BS broadcasts release that has data forwarding, it can keep connection, mac state machine and the MAC PDU relevant with this MSS that will be forwarded to target BS so that service continuously, stops forwarding through trunk request serving BS broadcasts up to target BS.When the switching of MSS was completed successfully, target BS can cushion the data of forwarding and be sent to MSS, and at this moment, sent trunk message and stop forwarding to tell serving BS broadcasts.
MSS can ask the forwarding of data of current reception by sending the MOB_HO_IND MAC Management message of the HO_IND_type value that serving BS broadcasts that expression has data forwarding discharges.Service continuously then make this request and is postponed IP and is rebulid after switching if MSS wants to receive by the data of the current reception of serving BS broadcasts, till the data procedures of current reception is finished.Based on having received the HO_IND_type that the serving BS broadcasts that has data forwarding discharges, serving BS broadcasts will send MOB_FWD_IND to MSS showing that BS whether can transmit on the basic CID of data.If the action code among the MOB_FWD_IND is represented ' not supporting data forwarding ', then switch once finishing MSS and rebulid the IP address, and if action code is represented ' support data forwarding ', then MSS postpones the data that IP rebulid and received forwarding.When MSS rebulid the IP connection during receiving the data of transmitting, this BS can send trunk message and stop forwarding data to ask old BS.
In the first embodiment of the present invention, defined following message:
* data transfer messages: when portable terminal does not move to target BS, the message of when transmitting the data that receive, using by serving BS.
* data transmit and to stop message: target BS sends to the message of previous base station, is used to ask to stop the transfer of data through portable terminal.
* enrollment response message: a kind of message, it additionally comprises so a kind of parameter, it is used for having the message (data) that will be sent to portable terminal by notice when portable terminal is carried out enrollment process, postpones (postpone or sluggish) IP address and sets up.
* ranging response message: a kind of message, it additionally comprises so a kind of parameter, it is used for when portable terminal is carried out ranging process, exists the message that will be sent to portable terminal to come deferring ip address to set up by notice.
Fig. 6-9 has shown the example of above-mentioned four types message respectively, and the parameter that is used for each message is example, therefore can be changed.
Here, data transfer messages shown in Figure 6 can be known as also that ' MSS-Data-Forwarding Message ', it is to send to the message of target BS so that transmit the MAC SDU of MSS during HO from serving BS broadcasts.Usually when MSS request serving BS broadcasts discharges service ZBS and data forwarding, use this message.Preferably,, will stop the transmission of this message based on having received Stop-Data-Forwarding message, as described below.
Data shown in Figure 7 transmit and stop message and can be known as also that ' Stop-Data-Forwarding Message ', it is to send to the message of serving BS broadcasts so that make serving BS broadcasts stop forwarding the MAC SDU of MSS from target BS.
Below, will explain the method that transmits and postpone the IP address assignment (foundation) of (postponing or sluggishness) terminal according to data between the base station of first embodiment with reference to Figure 10.Be used between the base station, transmitting the process of data
If portable terminal is converted to idle pulley, and the base station area that portable terminal is carried out the transition process of idle pulley from portable terminal wherein moves to the different base station area, (serving BS broadcasts: BS#1), this base station (BS#1) notifies other base station (BS# 2 and BS#3) down link data to arrive the portable terminal (MSS) with special MAC (medium access control) address when data arrive the base station of carrying out initial idle pulley transition process.
Then, by using the MAC Address of paging portable terminal, all base stations (BS# 2 and BS#3) in the identical paging zone are established to the action code that enters network.Portable terminal (MSS) the execution network that receives this paging enters process, and carries out the base station (target BS: BS#3) notify the base station (serving BS broadcasts) that receives above-mentioned data, exist paging to arrive the portable terminal of its paging zone that this network enters process.
Thereby base station (BS#1) transfers data to and makes portable terminal carry out the base station (BS#3) that network enters.Here, transmit data in the data transfer messages by it is included in, this message is trunk message.
Deferring ip address is set up when the execution network enters
When portable terminal execution network entered, because it has the received data of wanting, by two kinds of following situations, portable terminal must be postponed (delay) IP address and be set up.
At first, enter, after being in idle pulley, postpone (postpone or sluggish) IP address and set up based on network according to the command code (for example entering network) of paging.
The second, when clear and definite execution enrollment process in base station or paging, this of the data that existence will be transmitted is true to be notified to portable terminal by enrollment response message or ranging response message, and portable terminal is postponed (postpone or sluggish) IP address and set up.
In addition, portable terminal can be set up the IP address during the Data Receiving, and when the IP address was established, the base station that receives data sent transfer of data and stops message to the base station of transmitting data, and this message is trunk message.
Below, with the method for explaining according to the IP address assignment (foundation) of the transmission data between the base station of second embodiment of the invention and postponement (postpone or sluggish) portable terminal.Define following message by the first embodiment of the present invention.
*Switch designator: whether the clear and definite notice of this designator request can transmit current received data.
*Data transmit designator: whether this designator allows base station notice portable terminal can data to transmit.
*Data transfer messages: when serving BS should send target BS to by the data that portable terminal receives when it is not mobile, use this message.
*Transfer of data stops message: use this message when the previous base station of target base station requests should stop the transfer of data of portable terminal.
*Enrollment response message: this message further comprises when portable terminal is carried out enrollment process, by notifying the parameter that exists the message that will be transmitted to portable terminal to come deferring ip address to set up.
*Ranging response message: this message further comprises when portable terminal is carried out ranging process, has the message that will be transmitted to portable terminal by notice, the parameter that deferring ip address is set up.
Fig. 5 and 11A have shown the form that switches designator and data transmission designator respectively.The form of four types of above-mentioned message is presented at respectively among Fig. 6-9.Here, the parameter that is used for each message is example and therefore can be changed.
In Figure 11, MOB_FWD_IND_Message_Format is shown an example that transmits designator as data.When MSS sent the MOB_HO_IND MAC Management message with HO_IND_type value that serving BS broadcasts that expression has data forwarding discharges, BS sent this message to represent its data forwarding ability.Send action code 00 so that this BS of instruct MS S can transmit data to target BS, and when this BS can not support data forwarding, send 01.
Figure 12 has shown the example according to register response of the present invention (RNG RSP) message coding.
With reference to Figure 12, during switching (HO), MSS down link (DL) data of HO process optimization TLV item wait to send out (pending) element among the relevant RNG-RSP, and target BS enters the arm-to-arm of MSS DL data after can notifying MSS HO by Bit#7 again.Entering again of MSS success on the based target BS (having become new serving BS broadcasts now), with sending out after the reception of MSS DL data of finishing any reservation in new serving BS broadcasts with waiting of transmitting, MSS can rebulid the IP connectivity, and new serving BS broadcasts can send trunk message and stops forwarding the MSS DL data that treating before any HO sent out to ask old serving BS broadcasts or other network entity.
Below, will be with reference to the method for figure 12-15 explanation according to the IP address assignment (foundation) that between the base station, transmits data and postponement (postponing or sluggishness) portable terminal of second embodiment.Here, it should be noted that in Figure 12-15, the step that discharges terminal (MSS) is described in before the initial MMS data forwarding step.Yet, show that the square frame of ' MMS release ' step is shown as dotted line, to show the ad-hoc location of this step in whole process, as expected or if necessary, it can be changed.For example, the MSS release steps can be carried out at the end position near whole process, rather than in initial step, has more benefit if do like this.
In addition, in Figure 12-14, it should be noted that the data forwarding step can be carried out continuously, receive the message (Stop-Data-Forwarding) that shows data forwarding and should stop from target BS up to serving BS broadcasts.
And, since to the transmission between the base station (forwardings) data description characteristics of the present invention, what can understand is, this data transmit (forwardings) can be between the base station directly execution or pass through the go-between element, such as IAD, carry out.In other words, as shown in Figure 2, subnetwork (for example trunk) can comprise at least two base stations that directly link together or through gateway (or other network element) at least two base stations connected to one another.When the base station can not be clear and definite be notified to the terminal data transfer capability time
Figure 13 shown can not be clear and definite when the base station the IP address of notice portable terminal whether can transmit data the time set up.
With reference to Figure 13, if there are the current data that just receiving, the HO_IND_type that portable terminal is provided with MOB-HO-IND is for ' 00 ' (releases of=serving BS broadcasts) and send, or (=have a data forwarding serving BS broadcasts discharge) also can send to base station (BS#1) to be provided with ' 11 '.If HO_IND_type is ' 00 ', portable terminal is carried out switching and is not expected that receiving clear and definite data from the base station transmits designator.
In the case, terminal can not know whether that previous base station (BS#1) can transfer data to new base station (BS# 2).Thereby, after switching, wait the time of amount to be determined whether will be after any data that previous base station (BS#1) transmits from existing, portable terminal rebulids the IP address.If there are the data that transmit at the time durations of determining amount, then portable terminal can be postponed the foundation of (delay) IP address and be received this data, can stop Data Receiving at any time, decision receives data by new route, and rebulid when taking place as IP, new base station (BS#2) detects this and also transmits transfer of data and stop message to previous base station (BS#1).
Stop message based on the above-mentioned transfer of data that receives, previous base station stops at the message of transmission, discharges (cancellation) and is ignoring the MAC SDU that transmits from the upper strata about the state machine of the MAC of mobile portable terminal and after this.
The IP address that Figure 14 has described when the base station does not provide clear and definite data transfer messages is set up.With reference to Figure 14, if it is ' 11 ' that portable terminal sends HO_IND_type, this means whether the clear and definite notice in portable terminal expectation base station will make data and transmit, transmit designator if received data from the base station, then mobile radio station identical mode when whether can data transmitting with notice that can be clear and definite when the base station is operated, as shown in figure 15.
Yet, if the base station not number of support reportedly send designator, mobile stations wait is determined the time of amount, transmits designator if receive data from the base station, to carry out subsequently operation with HO_IND_type identical mode for ' 00 ' time.
When the base station can be clear and definite notice terminal data transfer capability the time
Figure 15 described can be clear and definite when the base station the IP address of notice portable terminal when whether can data transmitting set up.
As shown in figure 15, when portable terminal has current data that receiving, be set to ' 11 ' when (=have a data forwarding serving BS broadcasts discharge), the HO_IND_type of MOB-HO-IND can be sent out, so that receive clear and definite designator from the base station, whether its expression can data transmit.If base station (BS#1) supports to switch the HO_IND_type of designator (MOB-HO-IND), then base station (BS#1) sends data and transmits designator (MOB_FWD_IND) to mobile radio station.Thereby after having accepted the current data that receiving, the mobile radio station execution IP address that receives data transmission designators (MOB_FWD_IND) rebulids process.
When notifying new base station whether to have the data that will transmit
The request that Figure 16 has described according to the clear and definite designator of mobile radio station sends the process that designator transmits the serving BS of data.
With reference to Figure 16, when the mobile radio station that receives data moves, with when new base station (BS#2) when previous base station (BS#1) receives the transmission data be used for the terminal that will switch, when after portable terminal is switched, carrying out ranging process, or when carrying out enrollment process, new base station (BS#2) is notified to portable terminal with this fact, so that the portable terminal deferring ip address is set up.
As mentioned above, when portable terminal when first base station area of wherein making initial idle pulley and changing moves to second base station area and attempt to receive data, the present invention has defined the data that will receive are sent to second base station from first base station process, with defined a kind of portable terminal deferring ip address that is used for and set up process so that receive the method for above-mentioned data so that realize the effect that effective actual figure reportedly send.
In addition, the present invention has to utilize switches the method that transmits data afterwards between the base station, rebulid with deferring ip address when receiving the data that are sent to new base station from previous base station, portable terminal is provided, make it possible to guarantee the effect of service continuity when portable terminal.
The present invention has been described above for wireless access technology, should clearly understand, at present in the various wireless access technologys of exploitation (such as WiMax, WiBro, Wi-Fi or the like) all can benefit from feature of the present invention and instruction, because similarly relate to related similar of the radio communication of user terminal mobility, switching and idle mode operations, they are applicable.
The aforesaid preferred embodiment that is provided can make any those skilled in the art make or use the present invention.To those skilled in the art, the various modifications of these embodiment will be conspicuous, can be applied to other embodiment in the general principle of this definition.Therefore, the invention is not restricted to embodiment shown here, but with in this disclosed principle and novel features the wideest corresponding to scope.
Claims (41)
1. changing method that is used for BWA, this method comprises:
The switching of determining mobile radio station be need, have session connection simultaneously endways between the user;
Notify second tie point after switching, to keep session from first tie point by second tie point;
Carry out handoff procedure to be associated by mobile radio station with second tie point;
Exist the mobile radio station down link data to wait to send out element from second tie point notice mobile radio station; With
If the Internet protocol addressing need be changed, then, postpone the Internet protocol addressing having received after down link data waits to send out element.
2. the method for claim 1 is wherein carried out described determining step by mobile radio station or by network entity.
3. the method for claim 1, if wherein mobile radio station has timer, described timer suitably is provided with to allow mobile stations wait and to receive any down link data of being transmitted by second tie point, then omits described notifying process.
4. the method for claim 1 is wherein carried out described postponement step by mobile radio station.
5. the method for claim 1 further comprises step:
Carry out new Internet protocol addressing or rebulid the internet protocol address by mobile radio station; With
Indicate second tie point to stop its resource that is used to transmit data by first tie point.
6. the method for claim 1, wherein said mobile radio station network that relates to mobile radio station that is associated with second tie point enters or reenters.
7. the method for claim 1, wherein said handoff procedure comprise range finding and registration.
8. the method for claim 1, wherein said session comprises by the data forwarding of second tie point to mobile radio station.
9. the method for claim 1, wherein said tie point is the access point of base station, router or other types.
10. method as claimed in claim 9, wherein said first tie point are that the previous serving BS and second tie point is new serving BS.
11. the method for claim 1, wherein said process is carried out in a BWA.
12. the method for claim 1, wherein said process is carried out between a plurality of BWA.
13. method as claimed in claim 12, wherein said a plurality of BWA comprise IEEE network and cellular network.
14. a changing method that is used for BWA, this method comprises:
Definite switching be necessary, simultaneously have session connection between the terminal temperature difference;
Notify new tie point by mobile radio station, the old tie point that has the data forwarding indication with execution discharges;
Notify new tie point after switching, to keep session from old tie point by new tie point;
Carry out handoff procedure to be associated by mobile radio station with new tie point;
Exist the mobile radio station down link data to wait to send out element from new tie point notice mobile radio station; With
If the Internet protocol addressing need be changed, after receiving downlink data waits to send out element, postpone the Internet protocol addressing.
15. method as claimed in claim 14 before notifying process, further comprises step: notify the data forwarding that whether can support from it by old tie point.
16. method as claimed in claim 14 is wherein carried out described determining step by mobile radio station or by network entity.
17. method as claimed in claim 14, if wherein mobile radio station has timer, described timer suitably is provided with to allow mobile stations wait and to receive any down link data of being transmitted by second tie point, then omits described notifying process.
18. method as claimed in claim 14 is wherein carried out by mobile radio station and is postponed step.
19. method as claimed in claim 14 further comprises step:
Carry out new Internet protocol addressing or rebulid the internet protocol address by mobile radio station; With
Indicate second tie point to stop its resource that is used to transmit data by first tie point.
The network that relates to mobile radio station enters or reenters 20. method as claimed in claim 14, wherein said mobile radio station are associated with second tie point.
21. method as claimed in claim 14, wherein said handoff procedure comprise range finding and registration.
22. method as claimed in claim 14, wherein said session comprise by the data forwarding of second tie point to mobile radio station.
23. method as claimed in claim 14, wherein said tie point are the access points of base station, router or other types.
24. method as claimed in claim 23, wherein said first tie point is previous serving BS, and described second tie point is new serving BS.
25. method as claimed in claim 14, wherein said process is carried out in a BWA.
26. method as claimed in claim 14, wherein said process is carried out between a plurality of BWA.
27. method as claimed in claim 26, wherein said a plurality of BWA comprise IEEE network and cellular network.
28. a changing method that is used for BWA, this method comprises:
If the portable terminal of receiving downlink data moves to the zone of second base station services from the zone of first base station services,
Then these first base station forward downlink data are to second base station, and second base station this down link data of notice portable terminal will be forwarded to portable terminal.
29. method as claimed in claim 28 further comprises step:
The internet protocol address of postponing on the portable terminal is set up, to allow the portable terminal receiving downlink data.
30. method as claimed in claim 28 is wherein by using enrollment response message or ranging response message to realize described notice.
31. method as claimed in claim 30, wherein said enrollment response message comprises such parameter, and it exists the down link data that will transmit to postpone the foundation of portable terminal internet protocol address by indication.
32. method as claimed in claim 28 further comprises:
Be sent to first base station by switching designator, inquire whether down link data can be forwarded to second base station in this first base station by portable terminal;
This first base station through data forwarding designator notice portable terminal whether can data forwarding and the forward downlink data to second base station; With
Based on receiving this data forwarding designator,, carry out Internet protocol and rebulid process after second base station has received down link data.
33. method as claimed in claim 32, the data forwarding ability of notifying it that wherein if first base station can not be clear and definite, if perhaps do not receive described data forwarding designator within the predetermined time, then the initial network of portable terminal execution enters, to times to be determined such as down link data arrival, and carry out IP then and rebulid process.
34. method as claimed in claim 32, wherein said data forwarding designator are 2 bit operating sign indicating numbers, its expression data forwarding is possible or data forwarding is impossible.
35. method as claimed in claim 28 further comprises:
Transmit the switching designator to first base station by portable terminal;
By first base station through data forwarding designator forward downlink data to second base station;
Have the data that will be forwarded to it through the first message informing portable terminal, second base station; With
Postpone by portable terminal that IP rebulids definite time cycle and from the second base station receiving downlink data according to this first message.
36. method as claimed in claim 35, wherein this first message is enrollment response message or ranging response message.
37. method as claimed in claim 35, described switching designator is indicated the release of first base station.
38. the method that BWA receives at mobile retaining data during, this method comprises:
The switching of the execution and first base station and second base station is simultaneously from the first base station receiving downlink data;
Receive second base station and will transmit the indication of the other down link data relevant with the down link data that had before received from first base station;
The postponement internet protocol address is set up, up to having received described other down link data; With
Receive described other down link data from second base station.
39. method as claimed in claim 38 after having received described other down link data, further comprises step: set up based on the internet protocol address, rebulid the Internet protocol connectivity.
40. a BWA is in the method for mobile retaining data during, this method comprises:
Execution is used for the switching of mobile radio station and first base station and second base station, simultaneously down link data is sent to mobile radio station from first base station;
Second base station with transmitting the indication of the other down link data relevant with the down link data that had before sent from first base station, is sent to mobile radio station;
Send described other down link data to mobile radio station from second base station, this mobile radio station is postponed the internet protocol address and is set up, up to receiving described other down link data fully.
41. method as claimed in claim 40 after having sent described other down link data, further comprises step: set up based on the internet protocol address, cooperate to rebulid the Internet protocol connectivity with mobile radio station.
Applications Claiming Priority (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US56873804P | 2004-05-07 | 2004-05-07 | |
| US60/568,738 | 2004-05-07 | ||
| US57153704P | 2004-05-17 | 2004-05-17 | |
| US60/571,537 | 2004-05-17 | ||
| US57718604P | 2004-06-07 | 2004-06-07 | |
| US60/577,186 | 2004-06-07 | ||
| KR10-2004-0041596 | 2004-06-08 | ||
| KR1020040041596 | 2004-06-08 | ||
| KR20040041596 | 2004-06-08 | ||
| KR10-2005-0037769 | 2005-05-04 | ||
| KR1020050037769 | 2005-05-04 | ||
| KR1020050037769A KR101104517B1 (en) | 2004-05-07 | 2005-05-04 | Performing handover by defferring ip address establishment |
| PCT/KR2005/001338 WO2005109694A1 (en) | 2004-05-07 | 2005-05-07 | Performing handover by deferring ip address establishment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1951036A true CN1951036A (en) | 2007-04-18 |
| CN1951036B CN1951036B (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200580014575.8A Expired - Fee Related CN101036405B (en) | 2004-05-07 | 2005-05-07 | Method for performing handover in broadband wireless access system |
| CN200580020396.5A Expired - Fee Related CN1973489B (en) | 2004-05-07 | 2005-05-07 | IP addressing for broadband wireless access system |
| CN200580014578.1A Expired - Fee Related CN1951036B (en) | 2004-05-07 | 2005-05-07 | Performing handover by deferring IP address establishment |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
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| CN200580014575.8A Expired - Fee Related CN101036405B (en) | 2004-05-07 | 2005-05-07 | Method for performing handover in broadband wireless access system |
| CN200580020396.5A Expired - Fee Related CN1973489B (en) | 2004-05-07 | 2005-05-07 | IP addressing for broadband wireless access system |
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| CN (3) | CN101036405B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019165808A1 (en) * | 2018-03-02 | 2019-09-06 | 华为技术有限公司 | Communication method and apparatus based on internet of things |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106804030B (en) * | 2017-02-15 | 2019-11-19 | 深圳市广和通无线通信软件有限公司 | Short message protocol type configuration method and apparatus |
| CN108668330B (en) * | 2017-03-31 | 2019-06-21 | 电信科学技术研究院 | A kind of user terminal electricity saving method, device |
| JP7250909B2 (en) * | 2018-09-27 | 2023-04-03 | サムスン エレクトロニクス カンパニー リミテッド | Method and apparatus for communicating in unlicensed band in wireless communication system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6590880B1 (en) * | 1999-10-15 | 2003-07-08 | Nokia Corporation | Apparatus, and associated method, for facilitating communication handover in packet radio communication system |
| US6671735B1 (en) * | 2000-01-28 | 2003-12-30 | Qualcomm Incorporated | System and method for using an IP address as a wireless unit identifier |
| ATE291317T1 (en) * | 2000-06-26 | 2005-04-15 | Cit Alcatel | ADDRESSING SCHEME FOR AN IP BASED RADIO ACCESS NETWORK |
| US20020143993A1 (en) * | 2000-11-21 | 2002-10-03 | Samsung Electronics Co., Ltd | Regional tunnel management method in a mobile communication system using mobile IP |
| CN1157902C (en) * | 2001-06-18 | 2004-07-14 | 华为技术有限公司 | Ip address mapping and transmitting method for non-broadcast multipath access network |
| US7283496B2 (en) * | 2001-10-17 | 2007-10-16 | Alcatel Lucent | Network paging system and method |
| JP3886795B2 (en) * | 2001-12-10 | 2007-02-28 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile communication system, mobile communication method, mobile terminal, and communication base station |
| CN1223122C (en) * | 2002-09-23 | 2005-10-12 | 华为技术有限公司 | Method of soft switching in WCDMA network |
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2005
- 2005-05-07 CN CN200580014575.8A patent/CN101036405B/en not_active Expired - Fee Related
- 2005-05-07 CN CN200580020396.5A patent/CN1973489B/en not_active Expired - Fee Related
- 2005-05-07 CN CN200580014578.1A patent/CN1951036B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019165808A1 (en) * | 2018-03-02 | 2019-09-06 | 华为技术有限公司 | Communication method and apparatus based on internet of things |
| CN110225557A (en) * | 2018-03-02 | 2019-09-10 | 华为技术有限公司 | A kind of communication means and device based on Internet of Things |
| CN110225557B (en) * | 2018-03-02 | 2022-04-22 | 华为技术有限公司 | Communication method and device based on Internet of things |
| US11316630B2 (en) | 2018-03-02 | 2022-04-26 | Huawei Technologies Co., Ltd. | Internet of things-based communication method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101036405B (en) | 2010-06-16 |
| CN101036405A (en) | 2007-09-12 |
| CN1973489B (en) | 2011-09-14 |
| CN1973489A (en) | 2007-05-30 |
| CN1951036B (en) | 2010-05-12 |
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