CN101543002A - Method of performing procedures for initial network entry and handover in a broadband wireless access system - Google Patents

Method of performing procedures for initial network entry and handover in a broadband wireless access system Download PDF

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Publication number
CN101543002A
CN101543002A CNA2007800257038A CN200780025703A CN101543002A CN 101543002 A CN101543002 A CN 101543002A CN A2007800257038 A CNA2007800257038 A CN A2007800257038A CN 200780025703 A CN200780025703 A CN 200780025703A CN 101543002 A CN101543002 A CN 101543002A
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China
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mobile radio
base station
radio station
message
power saving
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CNA2007800257038A
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CN101543002B (en
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金龙浩
柳麒善
金丁起
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LG Electronics Inc
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LG Electronics Inc
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Priority claimed from KR1020060063874A external-priority patent/KR101265607B1/en
Priority claimed from KR1020060078284A external-priority patent/KR101295269B1/en
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Priority claimed from PCT/KR2007/002360 external-priority patent/WO2007133034A2/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

Disclosed is a method of performing procedures for network entry of a mobile station in a broadband wireless access system. The method includes being allocated with transmission parameters from a base station, at least one time performing a request of an uplink band for transmission of an uplink management message to the base station, and receiving a downlink message for next procedure from the base station if the uplink band is not allocated even after the lapse of a preset time period.

Description

Carry out in BWA that initial network enters and the method for the flow process switched
Technical field
The present invention relates to a kind of BWA, relate more particularly to that a kind of initial network of carrying out mobile radio station in BWA enters and the method for the flow process switched.
Background technology
BWA has defined the agreement of media interviews controls (MAC) layer that the point that is used between base station and the mobile radio station is connected to multiple spot and physics (PHY) layer.The protocol layer architecture of BWA as shown in Figure 1.The superiors of MAC layer are service specific convergence sublayers, and are used for converting the grouped data of various senior core networks to common protocol data cell (PDU) data and compressing the header of respective packets according to the MAC standard.
Fig. 2 illustrates the flow process that the execution network enters in OFDM (OFDMA) molded breadth band wireless access system when starting mobile radio station according to correlation technique.
1. if connect mobile radio station at first, then this mobile radio station retrieves downlink channel and receiving downlink/uplink map message (DL/UL MAP) and downlink/uplink channel descriptor message (DCD, UCD) are to obtain synchronously with the base station.
2. if mobile radio station receives the uplink map message of the assignment information with initial ranging zone, then mobile radio station select in the initial ranging sign indicating number ranging code and by using the initial ranging zone that selected ranging code is transferred to the base station.Mobile radio station will be notified such as the uplink transmission parameter adjustment value of time migration, frequency shift (FS) and power excursion by ranging response message (RNG-RSP) in the base station that has received the initial ranging sign indicating number, and receive the mobile radio station adjustment uplink transport parameter of uplink transmission parameter adjustment value.The exchange flow process of this type of ranging code and ranging response message is repeated in mobile radio station and base station, carries out the uplink transport parameter adjustment to allow mobile radio station.If the successful execution uplink transport parameter is adjusted, then the base station is forwarded to the corresponding mobile station with successful code together with ranging response message.At this moment, the base station is distributed based on non-competing uplink resource to the corresponding mobile station by concrete uplink map information element (being that CDMA distributes UL-MAP IE), to allow mobile radio station transmission distance measurement request message.Mobile radio station has the distance measurement request message of its MAC Address by using the uplink resource transmission distributed, and the base station that has received this distance measurement request message will distribute basic connection identifier (CID (basic CID) and mainly the ranging response message (RNG-RSP) of CID be transferred to the corresponding mobile station.
3. the mobile radio station that has been assigned basic CID and main CID by ranging response message is used for SS basic capabilities request (SBC-REQ) message with the base station negotiate basic capacity to base station transmits, and receives SS basic capabilities response (SBC-RSP) message from the base station.In order to transmit SBC-REQ message, should be that mobile radio station distributes uplink band from the base station.For this reason, mobile radio station receives the bandwidth request allocation region domain information by uplink map from the base station, and the bandwidth request code that will select at random is transferred to corresponding uplink region.Will be by concrete uplink map information element (CDMA distributes UL-MAP IE) based on non-competing uplink resource allocation to the corresponding mobile station from base station that mobile radio station receives this bandwidth request code, and the mobile radio station that has received based on non-competing uplink resource transmits the bandwidth request header that is used to ask the required uplink band of SBC-REQ transmission of messages by using corresponding uplink resource.The base station that has received this bandwidth request header is arrived the corresponding mobile station by uplink map information element (UL-MAP IE) with uplink resource allocation.Mobile radio station is by using the uplink resource transmission SBC-REQ message of being distributed, so that its basic capacity information is forwarded to the base station.The base station that has received SBC-REQ message with the SBC-RSP forwards to the corresponding mobile station, to finish the basic capability negotiating flow process between mobile radio station and the base station.After the bandwidth request code was transferred to the base station, if mobile radio station is assigned the uplink resource that can transmit SBC-REQ message, then mobile radio station can directly be transferred to the base station with SBC-REQ message under the situation that does not have the transmission bandwidth request header.
4. receive the mobile radio station of SBC-RSP message and base station exchange and be used to authenticate private key management request (PKM-REQ) message and private key managing response (PKM-RSP) message with the cipher key change flow process.At this moment, mobile radio station can be carried out the bandwidth request code transmission of above-mentioned flow process 3, is used to transmit the uplink resource allocation of PKM-REQ message with request.
5. if finished authentication and cipher key change flow process between mobile radio station and the base station by the exchange of PKM-REQ message and PKM-RSP message, then mobile radio station and base station exchange register requirement (REG-REQ) message and registration respond (REG-RSP) message, to carry out the register flow path of base station.At this moment, with flow process 3 and 4 identical modes, mobile radio station can be transferred to the base station with the bandwidth request code, is used to transmit the uplink band of REG-REQ message with request.
6. the mobile radio station of register flow path and the flow process that the preassignment Business Stream (ProvisionedService Flow) that is used for setting network is carried out in the base station have been finished by the exchange of REG-REQ message and REG-RSP message." preassignment Business Stream " is performed by this way: the dynamic service that base station transmits has the service quality relevant parameter adds request (DSA-REQ) message, and in response to this DSA-REQ message, mobile radio station adds response (DSA-RSP) forwards to the base station with dynamic service.When finishing " preassignment Business Stream " setting, mobile radio station and base station are finished the initial network register flow path and are converted into normal operating state.
According to correlation technique, stipulated the quantity of a plurality of timers and the number of times of repeating transmission so that mobile radio station can be during initial network enters normally with the base station exchange administrative messag.For example, the timer T3 that receives ranging response message from the base station is waited in definition in the mobile radio station that transmits distance measurement request message, if and mobile radio station does not receive ranging response message yet till corresponding timer expires, then mobile radio station is with the repeating transmission number of times of the previous definition of distance measurement request message retransmission.If mobile radio station does not receive the ranging response message from the base station yet till the repeating transmission number of times of distance measurement request message surpasses the repeating transmission number of times of stipulating, then mobile radio station is judged abnormality, and attempts to insert another base station or restart the beginning flow process that is used to insert corresponding base station.
According to correlation technique, timer quantity and the relevant parameter of repeating transmission number of times that regulation as shown in table 1 is required with the initial flow process of mobile radio station.
[table 1]
System Title Time reference Minimum value Default value Maximum
BS Initial ranging at interval Time between the initial ranging zone that BS distributes 2s
SS Competition range finding retry The number of retries of competition distance measurement request 16
SS， BS Invited the range finding retry Invite the number of retries of distance measurement request 16
SS The request retry The number of retries of bandwidth allocation request 16
SS The register requirement retry The number of retries of register requirement 3
BS Tproc The arrival of last UL-MAP at SS place and this mapping effectively between time of providing SC:200 μ s OFDM:1ms OFDM A:10 OFDM A symbol
BS The SS ranging response processing time What SS allowed is invited the distance measurement request time before to the expectation response after receiving ranging response 10ms
SS， BS DSx asks retry The overtime number of retries of DSA/DSC/DSD request 3
SS， BS DSx responds retry The overtime number of retries of DSA/DSC/DSD response 3
SS T1 Wait for that DCD is overtime 5*DCD is maximum at interval
SS T2 Overtime etc. range finding to be broadcast 5* finds range at interval
SS T3 Ranging response receive time-out after the transmission distance measurement request 200ms 200ms
SS T4 Wait for the clean culture ranging opportunity.If use " unsettled " field earlier by this SS, then should add the value of this field to this interval up to finishing. 30s 35s
BS T5 Wait for that uplink channel changes response 2s
SS T6 The queued for log-on response 3s
SS, BS T7 Wait for the DSA/DSC/DSD response timeout 1s
SS, BS T8 Wait for that DSA/DSC replys overtime 300ms
BS T9 Registration timeout sends RNG-RSP (success) and receives the time that allows between the SBC-REQ from identical SS to SS at BS 300ms 300ms
SS, BS T10 The wait closing the transaction is overtime 3s
SS T12 Wait for the UCD descriptor 5*UCD is maximum at interval
SS T14 Wait for that DSX-RVD is overtime 200ms
SS T18 Wait for that SBC-RSP is overtime 50ms ＜＜T9
Table 2 illustrates the initial ranging that is included in the uplink channel descriptor messages to be kept out of the way window initial parameters and initial ranging and keeps out of the way the example that window finishes parameter, and wherein these parameters are used as the minimum value and the maximum of keeping out of the way window during the initial ranging of mobile radio station.
[table 2]
Title Type (1 byte) Length Value
Initial_rangin g_backoff_sta rt (initial ranging is kept out of the way beginning) 198 1 The window size Expressing of initially keeping out of the way that is used for initial ranging competition is 2 power.The scope of the value of n is 0-15 (high-order position should not use and be set to 0), and this TLV should only use the analog value that occurs with in the expression UCD message field in NBR-ADV message.
Initial_rangin g_backoff_en d (initial ranging is kept out of the way end) 199 1 The window size Expressing of finally keeping out of the way that is used for initial ranging competition is 2 power.The scope of the value of n is 0-15 (high-order position should not use and be set to 0), and this TLV should only use the analog value that occurs with in the expression UCD message field in NBR-ADV message.
Fig. 3 is the block diagram of the operation of diagram when using random back during the initial ranging at mobile radio station.
Hereinafter the example of transmitting the initial ranging sign indicating number when the initial ranging backoff value is set to 13 during the initial ranging at mobile radio station from mobile radio station is described with reference to Fig. 3.In this case, because mobile radio station is selected backoff value at random initially keeping out of the way in the window, so the size of initially keeping out of the way window in should table 1 is set to greater than 13.
As shown in Figure 3, when mobile radio station was selected initial ranging backoff value 13, mobile radio station was transferred to the 14 up link ranging slot with ranging code.Like this, mobile radio station is selected to be used to transmit the ranging slot of ranging code in window is kept out of the way in range finding at random, so that minimize contingent conflict when a plurality of mobile radio stations transmit ranging code simultaneously.
In addition, according to correlation technique, when restarting the base station during normal running, the initial network restarting and carrying out the base station of mobile radio station identification base station enters.For this reason, the base station is forwarded to mobile radio station by downlink channel descriptor (DCD) with the number of times of restarting of base station, and has received this mobile radio station of restarting number of times by judging that whether restarting the base station judges that whether carrying out initial network enters.
Table 3 is to be included in the example that the counter parameter is restarted in base station (BS) in the downlink channel descriptor (DCD).
[table 3]
Title Type (1 byte) Length Value (variable-length) The PHY scope
BS is restarted counting 154 1 When BS was restarted, this value increased by 1 (referring to 6.3.9.11).This value is floated between 0～255. All
When execution was restarted, as shown in table 3, BS is just restarted the count parameter set point in the base station increased by 1.After receiving downlink channel descriptor message, previous BS is restarted count value to mobile radio station and currency relatively also judges whether restarted the base station.If restarted the base station, (that is, if restart count value than previous BS, this BS is restarted count value to be increased), then mobile radio station enters once more by the execution initial network and registers in the base station.
Fig. 4 illustrates the contingent problem between initial ranging flow process and basic capability negotiating flow process according to correlation technique.
As shown in Figure 4, distribute to mobile radio station by the initial ranging flow process from the base station with basic CID and main CID.Then, mobile radio station arrives the base station with the SBC-REQ transmission of messages, with the beginning basic capability negotiating.And the base station is transferred to mobile radio station so that basic CID and main CID are distributed to mobile radio station with ranging response message, and function timer T9 is to wait for the SBC-REQ message from mobile radio station then.If the base station does not receive SBC-REQ yet till timer expires, then the base station discharges basic CID and the main CID that distributes to this mobile radio station, and identical CID can be distributed to another mobile radio station.
Should give mobile radio station with uplink resource allocation, so that mobile radio station arrives the base station with the SBC-REC transmission of messages from the base station.For this reason, need the uplink bandwidth request flow process.Yet in this case, the uplink bandwidth request flow process may be conflicted with another uplink bandwidth request flow process of another mobile radio station, and perhaps the base station may not receive the uplink bandwidth request from mobile radio station owing to the deterioration of channel quality.Therefore, can the request of retry upstream link bandwidth.In other words, if when the timer of operating in the base station expires under the state that does not distribute uplink resource to mobile radio station, mobile radio station does not transmit SBC-REQ message, and then the base station discharges the CID that distributes to mobile radio station, and mobile radio station may unidentifiedly be released to CID.If another mobile radio station is distributed to corresponding C ID in the base station, then problem may take place, because identical CID may be assigned to two different mobile radio stations.
Fig. 5 illustrates in the correlation technique when starting the mobile base station contingent problem between base station login flow process and " preassignment Business Stream " flow process.
By finish preassignment Business Stream flow process after finishing register flow path, the network that mobile radio station is finished in mobile radio station and base station enters flow process.Yet, as shown in Figure 5, if mobile radio station receive from after the registration reply message of base station sometime the section in do not receive traffic request message, mobile radio station is not transformed into normal running and enters error condition.And if the traffic request transmission of messages is not being received the Business Stream response message in the section sometime to the base station of mobile radio station, then traffic request message is retransmitted in the base station.Even if after the number of times that the traffic request transmission of messages is given, the base station does not receive the Business Stream response message yet, then the base station becomes abnormality.Correlation technique is failed open at the mobile radio station of error condition and the operation of base station.
In correlation technique, the example that the initial network of mobile radio station enters flow process comprises that spontaneous initial network enters flow process and initial network enters flow process, enter network or the base station that the spontaneous access of mobile radio station has good sub-channel environment in the flow process at spontaneous initial network, enter in the flow process mobile radio station at initial network and restart and carry out initial network and enter flow process owing to the base station under the normal operating state that is registered in the base station.
Spontaneous initial network at mobile radio station enters under the situation of flow process, the quantity of the execution mobile radio station that spontaneous initial network enters is provided randomly and carries out network the time point when entering flow process.Because the initial network that the mobile radio station that causes is restarted in the base station enters under the situation of flow process, can predict and the quantity of the mobile radio station that enters of concentrative implementation initial network and the time point when carrying out network and entering flow process at once.
In addition, mobile radio station enters at initial network to be carried out random back during the initial ranging of flow process and conflicts with another mobile radio station avoiding, and the base station is forwarded to mobile radio station by the window of keeping out of the way that uplink channel descriptor (UCD) message will be used for random back.
Simultaneously, be used to minimize the battery saving mode of the power consumption of mobile radio station based on the BWA support of IEEE802.16e system.The operation that repeats mobile radio station by sleep interval and listening intervals under the battery saving mode.The sleep interval of being judged by each value of sleeping window and audit window and the length of listening intervals have different values according to the service feature that is provided with in the corresponding mobile radio station.Therefore, according to the service feature of Set For Current, mobile radio station can have following three class power saving grades.
-Di 1 class battery saving mode grade
-Di 2 class battery saving mode grades
-Di 3 class battery saving mode grades
The target of grade 1 is (best effort) (BE) business of doing one's best with feature of existing internet service or Non-Real Time Variable Bit Rate (nrt-VR), and is defined by the initial frame number of initial sleeping window, final window radix, final window index, audit window and sleeping window.
The target of grade 2 is VoIP or real-time variable bit rate (rt-VR) business, and is defined by the initial frame number of initial sleeping window, audit window and sleeping window.
Grade 3 is data that the administrative messag (such as DCD/UCD and MOB_NBR-ADV) that is used for being forwarded to the mobile radio station under the battery saving mode by the cycle maybe will be multicast forwarding, and is defined by the initial frame number of final window radix, final window index and sleeping window.
Simultaneously, any one grade in above-mentioned grade is activated and converts under the state of battery saving mode, and the flow process of carrying out the switching of mobile radio station will be described as follows.As a reference, Fig. 6 illustrates the signal flow between mobile radio station and the base station, carries out the flow process that correlation technique is switched under the battery saving mode to be shown in.
The mobile radio station of battery saving mode does not receive the down link signal of transmitting from serving BS, to minimize the power consumption corresponding to the sleep interval of unavailable commitment defini interval.And mobile radio station is not to serving BS transmit uplink business.On the other hand, mobile radio station can be from the base station receiving downlink data and to the serving BS transfer uplink data in corresponding to available communication listening intervals at interval.
Mobile radio station can be carried out the scanning flow process (S601) that is used for the channel status of retrieval peripheral base stations in as the sleep interval of unavailable commitment defini interval.At this moment, if peripheral base stations uses the frequency band that equates with the frequency band of serving BS, then mobile radio station can be carried out the scanning flow process of corresponding base station in listening intervals and sleep interval.
As the result of peripheral base stations scanning, if satisfy the condition of switching, then the mobile radio station request message (MOB_SLP-REQ) of will sleeping is transferred to serving BS with all power saving grades (S603) of deexcitation.To corresponding mobile station transmission sleep response message (MOB_SLP-RSP), this message is indicated all power saving grades (S605) of deexcitation to the serving BS that receives the sleep request message from mobile radio station in response to this sleep request message.
The mobile radio station that has received sleep response message (MOB_SLP-RSP) makes all power saving grade deexcitations (S607) of current activation, and the handoff request message (MOB_MSHO-REQ) that request switches to another base station is transferred to serving BS (S609).The serving BS that has received handoff request message (MOB_MSHO-REQ) transmits switching response message (MOB_MSHO-RSP) (S611) in response to this handoff request message (MOB_MSHO-REQ) to the corresponding mobile station.
The mobile radio station that has received switching response message (MOB_MSHO-RSP) is forwarded to serving BS with switch indicating information (MOB_HO_IND), be connected (S613) of request release with serving BS.Then, mobile radio station and handover-target base station are carried out network and are re-registered flow process to carry out switching (S615).
In above step, the mobile radio station of battery saving mode can omit step S603 and S605 and end battery saving mode.Simultaneously, mobile radio station can be transferred to serving BS with handoff request message (MOB_MSHO-REQ), to carry out the switching of another base station.
In correlation technique, when the mobile radio station of battery saving mode was carried out switching, mobile radio station made all power saving grade deexcitations of activation and carries out switching flow.At this moment, problem can take place, because correlation technique is failed suggestion and how keep and upgrade the information of the power saving grade of deexcitation after being switched.
Simultaneously, if mobile radio station moves to another mobile communication zone from concrete mobile message zone, then carry out of the switching of automatic converts communications channel to prevent to communicate by letter and disconnect.The general flow of carrying out this type of switching will be described as follows.Fig. 7 is the flow chart of the flow process between diagram mobile radio station and the base station, carries out the general flow that switches according to correlation technique with sequential illustrations.
Downlink channel descriptor (DCD) by being used for transmitting channel information or be used to is transmitted the message (MOB_NBR_ADV) of the information of adjacent base station, serving BS arrives mobile radio station (S701) with the handover trigger message transmission, wherein this handover trigger information is specified the trigger condition of the various operations of mobile radio station with respect to switching (that is, switching relevant operation).An example that is included in the tabulation in this handover trigger information is as follows.
[table 4]
Title Type Length (1 byte) Value
Type/function/action 54.1 1 Explanation is referring to table 358b
Trigger value 54.2 1 Compare to determine the value of trigger condition with the measurement metric
Trigger average duration 54.3 1 The average duration of mobile radio station vacuum metrics measured value
And this handover trigger information can also comprise following tabulation.
[table 5]
Title Length Value
Type 2 (MSB) 0x00:CINR tolerance 0x01:RSSI tolerance 0x02:RTD tolerance 0x03: keep
Function 3 0x00: keep 0x01: the tolerance of adjacent base station is greater than absolute value 0x02: the tolerance of adjacent base station is less than absolute value 0x03: the tolerance of adjacent base station is relatively greater than the tolerance 0x04 of serving BS: the tolerance of adjacent base station is relatively less than the tolerance 0x05 of serving BS: the tolerance of serving BS is greater than absolute value 0x06: the tolerance of serving BS is less than absolute value 0x07: keep
The action that starts 3 (LSB) 0x00: keep 0x01: trigger MOB_SCN-REP message response 0x02 after each sweep spacing: trigger MOB_MSHO-REO message response 0x03: by transmission MOB_SCN-REQ message, mobile radio station begins the scanning 0x04～0x07 of adjacent base station: keep
Then, if (0x03 of action lists) mobile radio station began (S702) to the scanning that serving BS triggers this adjacent base station when the scanning of satisfying handover trigger information when the default tolerance that receives from adjacent base station began condition, then mobile radio station transmits scan request message (MOB_SCN-REQ) to serving BS, and serving BS distributes default duration scanning in response to this scan request message (MOB_SCN-REQ) and transmission scans response message (MOB_SCN-RSP) to the corresponding mobile station simultaneously.Mobile radio station makes down link signal and adjacent base station synchronously and measure the quality of signals level that receives from adjacent base station, signal strength signal intensity, transmitting synchronous etc. in the duration scanning of being distributed, to carry out the scanning (S703) of adjacent base station.
If (0x01 of action lists) mobile radio station is to serving BS driver sweep report (S704) when scanning result satisfies the scan report condition of handover trigger information, then mobile radio station will be transferred to serving BS by carrier-in-interference noise ratio (CINR), received signal intensity indication (RSSI) and the round-trip delay (RTD) of this scanning survey by MOB_SCN-REP message.
If (0x02 of action lists) mobile radio station triggers handoff request (S705) to serving BS when scanning result satisfies the switching condition of handover trigger information, then mobile radio station transmits handoff request message (MOB_MSHO-REQ) to serving BS, and serving BS transmits switching response message (MOB_MSHO-RSP) in response to this handoff request message to the corresponding mobile station.Subsequently, mobile radio station transmits switch indicating information (MOB_HO-IND) to serving BS and discharges be connected (S706) with serving BS with request, and carries out then and the network of handover-target base station re-registers flow process.
Simultaneously, be used to minimize the battery saving mode of the power consumption of mobile radio station based on the BWA support of IEEE802.16e system.The operation that repeats mobile radio station under the battery saving mode by sleep interval and listening intervals.Each value by sleeping window and audit window is judged sleep interval and listening intervals.In this case, sleep interval can have different values according to the service feature that is provided with in the corresponding mobile radio station with listening intervals.Battery saving mode can be divided into the 1st class battery saving mode grade, the 2nd class battery saving mode grade and the 3rd class battery saving mode grade.
Even from the serving BS reception and to serving BS transmission scan request message (MOB_SCN-REQ) and scanning response message (MOB_SCN-RSP), just the mobile radio station of operating under battery saving mode can not carried out the scanning of adjacent base station to mobile radio station yet.If mobile radio station all to serving BS transmission scan report message, then because need the power consumption of mobile radio station inevitably problem can take place when carrying out the scanning of adjacent base station, this is not the intention of battery saving mode.Yet, if the base station receives the scan report message be used to switch from mobile radio station because the base station can not suitably control to battery saving mode mobile radio station switching and problem can take place.
In addition, when mobile radio station does not use the feature of each grade regardless of the power saving grade of operating by carrying out handover operation, because current mobile radio station fails effectively to carry out switching associative operation and power-save operation problem can take place.
Summary of the invention
Therefore, the present invention is directed to a kind of method of carrying out the flow process that the initial network be used for mobile radio station enters in BWA, this method has been eliminated the one or more problems that cause owing to the restriction of correlation technique and shortcoming substantially.
An object of the present invention is to provide a kind of method of in BWA, effectively carrying out the flow process that the initial network that is used for mobile radio station enters.
Another object of the present invention provides the method for the abnormal operation of the mobile radio station that a kind of mistake that prevents to take place during the initial network owing to mobile radio station from entering causes in BWA.
Another object of the present invention provides a kind of method by proposing to operate mobile radio station because of the clear and definite standard of the power saving grade of switching deexcitation, according to the network state between transfer period about how handling in first base station under the most effective battery saving mode after switching to second base station.
Another purpose of the present invention is to allow at least one operation class information is included in from the correlation technique handover trigger information of base station transmits, so that each grade is carried out independent switching associative operation.
Another purpose of the present invention is by specifying a plurality of switching associative operations that triggered by mobile radio station to reduce the transmission of trigger message simultaneously and receiving number of times.
In one embodiment of the invention, if during the network of mobile radio station enters flow process, the base station does not receive the uplink transmission message (SBS-REQ, PKM-REQ, REG-REQ etc.) from mobile radio station in the preset time section, then avoids error condition by the following method.
The base station discharges the management resource such as the managing connection identification of distributing to mobile radio station, and transmission reset command message (RES-CMD) enters flow process to allow mobile radio station to re-execute network.The mobile radio station that has received this reset command message stops to attempt being used for the transfer bandwidth request (such as SBC-REQ) of up link administrative messag, and restarts the network that comprises the flow process of finding range and enter flow process.
The bandwidth request trial failure of passing through based on the mobile radio station in the uplink bandwidth request zone of competing is repeatedly judged in the base station, and will be assigned to the corresponding mobile station based on non-competing uplink band with the transmit uplink administrative messag.
If the channel status between mobile radio station and the base station degenerates, or owing to the mobile radio station that can receive in the base station too much causes the base station not receive the up link administrative messag from the corresponding mobile station, then the base station administrative messag (for example registration release command message (DREG-CMD)) that will order corresponding mobile to stand in to register in another base station is forwarded to mobile radio station, enters flow process so that the network of another base station is carried out at the corresponding mobile station.
By above method, can avoid error condition, when receive uplink transmission message (SBC-REQ, PKM-REQ, REG-REQ etc.) from mobile radio station preset time in the section, described error condition may not take place when the initial network at mobile radio station enters the flow process base stations during.
If after receiving registration reply message, mobile radio station does not receive preassignment traffic request message from the base station in preset time in the section, then can avoid error condition by the following method.
(timer that for example wherein is provided with indication latency services request message is the service response message of overdue error code with the up link administrative messag for mobile radio station, or the administrative messag or the header of the function identical functions of execution and timer) be forwarded to the base station and do not receive business request information as yet with the indication mobile radio station, and allow the base station transmits business request information.Preferably, can define the quantity of the timer of the repeating transmission number of times of the transmission that is used for the up link administrative messag and latency services request message together.
If during the initial network of mobile radio station enters flow process, because the base station does not receive in response to the service response message of the mobile radio station of business request information and do not generate the preassignment Business Stream, then reset command information (RES-CMD) is transmitted to carry out the beginning flow process of mobile radio station once more to mobile radio station in the base station.
In one aspect of the invention, a kind of method of carrying out the flow process that the network be used for mobile radio station enters in BWA comprises from the base station assigns transmission parameter, at least carry out the request that once is used for to the uplink band of base station transmits up link administrative messag, even and if the Preset Time section in the past after still unallocated uplink band, then be used for the downlinlc message of next flow process from the base station reception.
In another aspect of this invention, a kind of method that the execution network enters in wireless communication system comprises that first network of the network entry time that receives at least one mobile radio station enters control information, and this first network enters control information and is set to concrete first value; Entering control information execution network according to the first received network enters; Second network that receives the network entry time of described at least one mobile radio station enters control information, and this second network enters control information and is set to concrete second value; And enter control information according to the second received network and carry out network and enter.
Preferably, it is the range finding backoff value that is used for spontaneous access that first network enters control information, and second network to enter control information be the backoff value of restarting according to the base station.Preferably, described backoff value of restarting according to the base station is greater than the described range finding backoff value that is used for spontaneous access.
In another aspect of this invention, a kind of method that the execution network enters in wireless communication system comprises that first network that receives the network entry time that comprises mobile radio station enters control information; Entering control information execution network according to the first received network enters; Second network that receives the network entry time of mobile radio station enters control information, and this second network enters control information and judges according to the operator scheme of mobile radio station; And enter control information according to the second received network and carry out network and enter.
Preferably, divide the operator scheme of mobile radio station according to the Poewr control method of connection status between mobile radio station and the network or mobile radio station.Preferably, operator scheme is divided into normal mode, idle pulley, sleep pattern etc.Preferably, it is the range finding backoff value that is used for spontaneous access that first network enters control information, and second network to enter control information be the backoff value of restarting according to the base station.Preferably, described backoff value of restarting according to the base station is greater than the described range finding backoff value that is used for spontaneous access.
In another aspect of this invention, a kind of method that the execution network enters in wireless communication system comprises that first network of the network entry time of at least one mobile radio station enters control information and is set to concrete first value, and set value is transferred to first mobile radio station; Enter the register flow path that first mobile radio station that network enters carry out is attempted in control information based on first network; Re-register first mobile radio station if desired, then second network of the network entry time of described at least one mobile radio station enters control information and is set to concrete second value, and set value is transferred to first mobile radio station; And enter the flow process that re-registers that first mobile radio station that network enters carry out is attempted in control information based on second network.
In another aspect of this invention, a kind ofly in wireless communication system, carry out method that network enters and comprise that first network with the network entry time of at least one mobile radio station enters control information and is transferred to concrete first mobile radio station; Enter the register flow path that first mobile radio station that network enters carry out is attempted in control information based on first network; Re-register first mobile radio station if desired, then second network of the network entry time of described at least one mobile radio station is entered control information and be transferred to first mobile radio station, this operator scheme according to described at least one mobile radio station is judged; And enter the flow process that re-registers that first mobile radio station that network enters carry out is attempted in control information based on second network.
In another aspect of this invention, be transferred to second base station with being used for the distance measurement request message that network enters from mobile radio station a kind of comprising in the method for carrying out the switching of mobile radio station during first base station switches to second base station the process of power saving grade configuration information of control first base station under battery saving mode; Receive ranging response message from second base station, this ranging response message comprises the control information of the power saving grade configuration information of first base station; And the power saving grade configuration information of handling first base station according to this control information.
Control information is the information that indication discharges the power saving grade configuration information of first base station, and mobile radio station discharges the respective level configuration information according to this control information.In this case, this method comprises that also the request message that will be used for the new power saving grade of defined and active is transferred to second base station from mobile radio station, and receive the response message of this request message from second base station, define and activate this new power saving grade according to corresponding response message, and the conversion of carrying out battery saving mode.
In addition, control information comprises that the power saving grade configuration information of first base station is upgraded in indication and with the information of the power saving grade configuration information that is updated, and mobile radio station will to have the grade configuration information update now be the grade configuration information that is included in the control information.In this case, the item of the existing grade configuration information that does not upgrade is kept intact or is released.And, this method comprises that also the request message that will be used to activate the power saving grade of being upgraded is transferred to second base station from mobile radio station, and receive the response message of this request message from second base station, activate the power saving grade according to corresponding response message, and the conversion of carrying out battery saving mode.
In addition, control information comprises that indication keeps the information of the power saving grade configuration information of first base station, and mobile radio station keeps corresponding grade configuration information according to control information.In this case, this method comprises that also the request message that will be used to activate the power saving grade that is kept is transferred to second base station from mobile radio station, and receive the response message of this request message from second base station, activate the power saving grade according to corresponding response message, and the conversion of carrying out battery saving mode.
In addition, if cancel to the switching of second base station and carry out entering again of first base station, then this method also comprises and will be used for the reentrant distance measurement request transmission of messages of network to first base station; Receive ranging response message from first base station, this ranging response message comprises the control information of power saving grade configuration information; And according to this control information processing power saving grade configuration information.
Simultaneously, another aspect of the present invention relates to a kind of mobile radio station of controlling the power saving grade configuration information of first base station during switching to second base station from first base station, this mobile radio station comprises radio communication module, this radio communication module will be used for the distance measurement request transmission of messages that network enters and receive ranging response message to second base station and from second base station, and this ranging response message comprises the control information of the power saving grade configuration information of first base station; And control module, this control module is handled the power saving grade configuration information of first base station according to control information.
Control information is the information that indication discharges the power saving grade configuration information of first base station, and control module discharges corresponding grade configuration information according to this control information.In this case, radio communication module also comprises to second base station transmits and is used for the request message of the new power saving grade of defined and active and receives the function of the response message of this request message from second base station, and control module also comprises according to the corresponding new power saving grade of response message defined and active and carries out the function of the conversion of battery saving mode.
In addition, control information comprises that the power saving grade configuration information of first base station is upgraded in indication and with the information of the power saving grade configuration information that is updated, and control module is the grade configuration information that is included in this control information with existing grade configuration information update.In this case, radio communication module also comprises the request message transmission that will be used to activate the power saving grade of being upgraded to second base station and receive the function of the response message of this request message from second base station, and control module also comprises according to corresponding response message and activates the power saving grade and carry out the function of the conversion of battery saving mode.
In addition, control information is the information that indication keeps the power saving grade configuration information of first base station, and control module keeps corresponding grade configuration information according to this control information.In this case, radio communication module also comprises the request message transmission that will be used to activate the power saving grade that is kept to second base station and receive the function of the response message of this request message from second base station, and control module also comprises according to corresponding response message and activates the power saving grade and carry out the function of the conversion of battery saving mode.
Simultaneously, another aspect of the present invention relates to a kind of method of carrying out the switching of mobile radio station in the process of the power saving grade configuration information of controlling mobile radio station during first base station switches to second base station second base station under battery saving mode, this method comprises from the mobile radio station reception will be used for the distance measurement request message that network enters into second base station, and ranging response message is transferred to mobile radio station, this ranging response message comprises the control information of the power saving grade configuration information of first base station.
Control information is the information that indication discharges the power saving grade configuration information of first base station, be that indication is upgraded the power saving grade configuration information of first base station and with the information of the power saving grade configuration information that is updated, or indication keep the information of the power saving grade configuration information of first base station.
Control information comprises the parameter (being called " power saving renewal class parameter ") of the release/renewal/maintenance that is used to indicate power saving grade configuration information, and the example of parameter is as follows.
[table 6]
Parameter name Type Length (byte) Value
Power_Savi ng_Class_U pdate (renewal of power saving grade) TBD 1 0x00=discharges the parameter of all power saving grade 0x01=of previous serving BS broadcasts place definition according to Power_Saving_Class_Parameters (power saving class parameter) TLV renewal power saving grade.0x02=keeps all power saving grades of previous serving BS broadcasts place definition under indeclinable situation
In addition, if cancel to the switching of second base station and carry out entering again of first base station, then radio communication module also comprises and will be used for the reentrant request message transmission of network to first base station and receive the function of ranging response message from first base station, this ranging response message comprises the control information of power saving grade configuration information, and control module also comprises according to the function of handling power saving grade configuration information from the control information of first base station transmits.
Another aspect of the present invention relates to a kind of method of carrying out the switching of mobile radio station in the process of switching associative operation according to the handover trigger information and executing, this method comprises from serving BS reception handover trigger information, under sleep pattern, carry out the scanning of adjacent base station, if and scanning result is fit to the trigger condition that is provided with in the trigger message, then trigger the concrete switching associative operation of appointment in the described trigger message.This method also is included in and enters concrete that changes handover trigger information during the battery saving mode.
Another aspect of the present invention relates to a kind of mobile radio station according to handover trigger information and executing switching associative operation, and this mobile radio station comprises radio communication module, and this radio communication module receives handover trigger information and is used for the signal of channel quality measurement; And control module, this control module is carried out the scanning of adjacent base station under sleep pattern, and if scanning result be fit to the trigger condition that is provided with in the trigger message, then trigger the concrete switching associative operation of appointment in the described trigger message.In this case, this control module also is included in and enters concrete the function that changes handover trigger information during the battery saving mode.
In aspect above two, described handover trigger information specifies permission to trigger at least one class power saving grade of switching associative operation, and specifies owing to scanning result is fit at least one switching associative operation that trigger condition triggers.
Preferably, for each grade of battery saving mode, specify described at least one switching associative operation independently.Preferably, the switching associative operation of appointment comprises in scan report, scan request and the handoff request at least one in the handover trigger information.
Description of drawings
Fig. 1 illustrates the protocol hierarchy structure according to the BWA of correlation technique;
Fig. 2 illustrates the flow process that the execution network enters when starting mobile radio station in OFDM (OFDMA) molded breadth band wireless access system according to correlation technique;
Fig. 3 is the block diagram that is shown in the operation when using random back during the initial ranging of mobile radio station;
Fig. 4 illustrates the contingent problem between initial ranging flow process and basic capability negotiating flow process according to correlation technique;
Fig. 5 illustrate in the correlation technique when starting the mobile base station between base station login flow process and " preassignment Business Stream " flow process contingent problem;
Fig. 6 is that the flow chart between mobile radio station and the base station is carried out the flow process that correlation technique is switched to be shown under the battery saving mode;
Fig. 7 is that the flow chart of the flow process between diagram mobile radio station and the base station is carried out the general flow that switches with sequential illustrations according to correlation technique;
Fig. 8 to Figure 13 is the flow chart that illustrates preferred embodiment according to an aspect of the present invention;
Figure 14 is diagram is carried out the reentrant method of mobile radio station when restart the base station a flowchart illustration;
Figure 15 is that diagram is kept out of the way the flow chart of the method for window according to operator scheme application initial ranging;
Figure 16 is that the flow chart between mobile radio station and the base station is carried out the flow process of switching with diagram according to one embodiment of the present of invention under battery saving mode;
Figure 17 is that the flow chart between mobile radio station and the base station is carried out the flow process of switching with diagram according to another embodiment of the present invention under battery saving mode;
Figure 18 is that the flow chart between mobile radio station and the base station is carried out the flow process of switching with diagram according to other embodiments of the invention under battery saving mode;
Figure 19 is that flow chart between mobile radio station and the base station is with the operating process of mobile radio station under the battery saving mode that is shown in grade 1;
Figure 20 is that flow chart between mobile radio station and the base station is with the operating process of mobile radio station under the battery saving mode that is shown in grade 2;
Figure 21 is that flow chart between mobile radio station and the base station is with the operating process of mobile radio station under the battery saving mode that is shown in grade 3;
Figure 22 be mobile radio station with the base station between the operating process of the mobile radio station that is connected with multicast under the battery saving mode that is shown in grade 3 of flow chart;
Figure 23 is the concept map of the operating characteristics of diagram when a plurality of battery saving mode grade of activation in mobile radio station;
Figure 24 is that flow chart between mobile radio station and the base station is to be shown in the operating characteristics of mobile radio station under the battery saving mode;
Figure 25 is that flow chart between mobile radio station and the base station is with the example of sequential illustrations according to the flow process of carry out switching under battery saving mode of the present invention;
Figure 26 is that flow chart between mobile radio station and the base station is with the general operation flow process of mobile radio station under the battery saving mode that is shown in grade 1;
Figure 27 is that flow chart between mobile radio station and the base station is with sequential illustrations another example according to the flow process of carry out switching under battery saving mode of the present invention;
Figure 28 is that flow chart between mobile radio station and the base station is with the general operation flow process of mobile radio station under the battery saving mode that is shown in grade 2;
Figure 29 is that flow chart between mobile radio station and the base station is with sequential illustrations other example according to the flow process of carry out switching under battery saving mode of the present invention;
Figure 30 is that flow chart between mobile radio station and the base station is with the general operation flow process of mobile radio station under the battery saving mode that is shown in grade 3;
Figure 31 be mobile radio station with the base station between the operating process of the mobile radio station that is connected with multicast under the battery saving mode that is shown in grade 3 of flow chart;
Figure 32 is the concept map of the operating characteristics of diagram when a plurality of battery saving mode grade of activation in mobile radio station;
Figure 33 is that flow chart between mobile radio station and the base station is to be shown in the operating characteristics of mobile radio station under the battery saving mode; And
Figure 34 is the block diagram that illustrates the main element of the mobile radio station of supporting changing method of the present invention.
Embodiment
Hereinafter, will be readily appreciated that structure of the present invention, operation and further feature by the preferred embodiments of the present invention, its example illustrates in the accompanying drawings.
To based on two operations operations according to the instant invention be described in the mode identical with configuration of the present invention.Operation indication during the network of mobile radio station enters when the base station when do not receive up link administrative messag from mobile radio station preset time in the section mobile radio station and the operation of base station.Another operation indication is in the operation when mobile radio station and base station normally do not generate Business Stream during the flow process that generates the preassignment Business Stream.
Fig. 8 is the flow chart of diagram a preferred embodiment of the present invention, and it does not receive first embodiment from the situation of the up link administrative messag of mobile radio station for enter base stations during corresponding to the initial network at mobile radio station in section in preset time.
Base station and mobile radio station exchange distance measurement request message (RNG-REQ) and ranging response message (RNG-RSP) are to distribute basic CID and main CID to mobile radio station.Corresponding ranging response message is transferred to after the mobile radio station, and base station operation timer T9 also waits for basic capacity request message (SBC-REQ) from mobile radio station.If mobile radio station receives the ranging response message that comprises basic CID and main CID, then mobile radio station is used to transmit the uplink band of SBC-REQ message by service band request code and the request of frequency band request header.If, be not that mobile radio station distributes uplink band from the base station, then mobile radio station is kept out of the way the frequency band request that makes repeated attempts by execution.
If the base station does not receive the SBC-REQ message from mobile radio station yet till timer T9 expires, then reset command information (RES-CMD) is carried out mobile radio station once more with order beginning flow process is transmitted in the base station.Simultaneously, the base station discharges basic CID and the main CID that distributes to mobile radio station.If mobile radio station receives the RES-CMD from the base station, then mobile radio station stops to be used to transmit the uplink band request flow process of SCB-REQ message and to carry out the beginning flow process that comprises range finding once more.At this moment, mobile radio station discharges basic CID and main CID in the mode identical with the base station.Base station transmits initial ranging sign indicating number is to carry out the initial ranging flow process.
Fig. 9 is the flow chart of diagram another preferred embodiment of the present invention, and it does not receive second embodiment from the situation of the up link administrative messag of mobile radio station for enter base stations during corresponding to the initial network at mobile radio station in section in preset time.
Base station and mobile radio station exchange distance measurement request message (RNG-REQ) and ranging response message (RNG-RSP) are to distribute basic CID and main CID to mobile radio station.Corresponding ranging response message is transferred to after the mobile radio station, and base station operation timer T9 also waits for basic capacity request message (SBC-REQ) from mobile radio station.If mobile radio station receives the ranging response message that comprises basic CID and main CID, then mobile radio station is used to transmit the uplink band of SBC-REQ message by service band request code and the request of frequency band request header.If be not that mobile radio station distributes uplink band from the base station, then mobile radio station is kept out of the way the frequency band request that makes repeated attempts by execution.
If the base station does not receive the SBC-REQ message from mobile radio station yet till expiring at timer T9, then the base station will give mobile radio station to allow mobile radio station transmission SBC-REQ message based on non-competing uplink radio resource allocation.Distribute mobile radio station based on non-competing uplink radio resources to base station transmits SBC-REQ message from the base station for it.Yet if even the base station has been distributed based on non-competing uplink radio resources, the base station does not receive SBC-REQ message yet, and preset times will be distributed repeatedly based on non-competing uplink radio resources in the base station.If however the base station does not receive SBC-REQ message yet, then the base station thinks that mobile radio station is in abnormality and discharges basic CID and the main CID that distributes to mobile radio station.Then, the base station is carried out the beginning flow process to mobile radio station transmission RES-CMD message once more to allow mobile radio station.
Figure 10 is the flow chart of diagram another preferred embodiment of the present invention, and it does not receive the 3rd embodiment from the situation of the up link administrative messag of mobile radio station for enter base stations during corresponding to the initial network at mobile radio station in section in preset time.
Base station and mobile radio station exchange distance measurement request message (RNG-REQ) and ranging response message (RNG-RSP) are to distribute basic CID and main CID to mobile radio station.Corresponding ranging response message is transferred to after the mobile radio station, and base station operation timer T9 also waits for basic capacity request message (SBC-REQ) from mobile radio station.If mobile radio station receives the ranging response message that comprises basic CID and main CID, then mobile radio station is used to transmit the uplink band of SBC-REQ message by service band request code and the request of frequency band request header.If be not that mobile radio station distributes uplink band from the base station, then mobile radio station is kept out of the way the frequency band request that makes repeated attempts by execution.
If the base station does not receive the SBC-REQ message from mobile radio station yet till timer T9 expires, then the base station discharges basic CID and the main CID that distributes to mobile radio station, and network from the order mobile radio station to mobile radio station transmission registration release command message (DREG-CMD) that carry out another base station with enters flow process.The mobile radio station that has received DREG-CMD message from the base station discharges basic CID and the main CID from base station assigns, and carries out the network of another base station and enter flow process by scanning another BTS channel.
In described three embodiment of reference Fig. 8 to Figure 10, though described during network enters flow process mobile radio station in the preset time section not to the situation of base station transmits SBC-REQ message, even but between by mobile radio station and base station after the basic capability negotiating of exchange SBC-REQ message and SBC-RSP message the base station preset time do not receive in the section from mobile radio station be used to authenticate and with the situation of the PKM-REQ message of base station exchange key and the REG-REQ message that is used to register under, also can carry out identical flow process.
Figure 11 is the flow chart of diagram another preferred embodiment of the present invention, it is for during entering corresponding to the initial network at mobile radio station, has received from the REG-RSP message of base station and the mobile radio station of finishing register flow path and has not received first embodiment from the situation of the preassignment traffic request message of base station.
Mobile radio station and base station exchange REG-REQ message and REG-RSP message mutually to carry out the base station login flow process of mobile radio station.If to finish register flow path, then the base station transmits dynamic service adds request message (DSA-REQ) to generate the timer T7 that preassignment Business Stream and operation awaits dynamic service add response message (DSA-RSP) to mobile radio station transmission REG-RSP message in the base station.Simultaneously, received timer from the mobile radio station operation awaits DSA-REQ message of the REG-RSP message of base station.After transmission DSA-REQ message, if the base station does not receive DSA-RSP message from mobile radio station yet till timer T7 expires, then the base station is transmitted DSA-REQ message repeatedly preset times and is waited for DSA-RSP message.
If mobile radio station does not receive DSA-REQ message in the certain hour section, then mobile radio station transmit uplink administrative messag (for example wherein being provided with the DSA-RSP message of error code) or uplink header, it does not receive DSA-REQ message as yet with informing base station.Then, the base station is transmitted DSA-REQ message by using the coding and the modulation scheme that are fit to mobile radio station to mobile radio station.The mobile radio station that has received DSA-REQ message from the base station generates to the base station DSA-RSP forwards flow process of preassignment Business Stream with execution.The base station that has received DSA-RSP message is flowed flow process to mobile radio station transmission DSA-ACK message to finish corresponding business.Mobile radio station and base station exchange DSA message preset times mutually to generate the preassignment Business Stream, enter flow process thereby finish network.
Figure 12 is the flow chart of diagram another preferred embodiment of the present invention, and it does not receive second embodiment from the situation of the preassignment traffic request message of base station for having received during entering corresponding to the initial network at mobile radio station from the REG-RSP message of base station and the mobile radio station of finishing register flow path.
Mobile radio station and base station exchange REG-REQ message and REG-RSP message mutually to carry out the base station login flow process of mobile radio station.If to finish register flow path, then the base station transmits dynamic service adds request message (DSA-REQ) to generate the timer T7 that preassignment Business Stream and operation awaits dynamic service add response message (DSA-RSP) to mobile radio station transmission REG-RSP message in the base station.Simultaneously, received timer from the mobile radio station operation awaits DSA-REQ message of the REG-RSP message of base station.
After transmission DSA-REQ message, if the base station does not receive DSA-RSP message from mobile radio station yet till timer expires, then the base station is transmitted DSA-REQ message repeatedly preset times and is waited for DSA-RSP message.Even if the base station with the given number of times of DSA-REQ message retransmission, but the base station does not receive the DSA-RSP message from mobile radio station yet, then base station transmits reset command information (RES-CMD) is carried out the beginning flow process to allow mobile radio station.If wait for from the mobile radio station of the DSA-REQ message of base station transmits receiving RES-CMD message from the base station, then mobile radio station is carried out the initial network that comprises the initial ranging flow process once more and is entered flow process.
Figure 13 is the flow chart of diagram another preferred embodiment of the present invention, and it does not receive the 3rd embodiment from the situation of the preassignment traffic request message of base station for having received during entering corresponding to the initial network at mobile radio station from the REG-RSP message of base station and the mobile radio station of finishing register flow path.
Mobile radio station and base station exchange REG-REQ message and REG-RSP message mutually to carry out the base station login flow process of mobile radio station.If to finish register flow path, then the base station transmits dynamic service adds request message (DSA-REQ) to generate the timer T7 that preassignment Business Stream and operation awaits dynamic service add response message (DSA-RSP) to mobile radio station transmission REG-RSP message in the base station.Simultaneously, received timer from the mobile radio station operation awaits DSA-REQ message of the REG-RSP message of base station.After transmission DSA-REQ message, if the base station does not receive DSA-RSP message from mobile radio station yet till timer T7 expires, then the base station is transmitted DSA-REQ message repeatedly preset times and is waited for DSA-RSP message.
If mobile radio station does not receive DSA-REQ message at certain hour in the cycle, then mobile radio station discharges registration to base station transmits registration release request message (DREG-REQ) with the request base station.The base station discharge basic CID, main CID and management resource and to mobile radio station transmission registration release command message (DREG-CMD) to finish the release of registration.Received mobile radio station from the DREG-CMD message of base station and discharged CID and management resource, and the initial network of carrying out this base station enters flow process or enters flow process to the network of another base station from base station assigns.
Another embodiment of the present invention relates to a kind of improved network access method and a kind of transmission of this method and method of receiving control information of being used for.
As mentioned above, initial network enters flow process and can be divided into two classes.In this case, according to correlation technique, with single value comparable applications in be used for the relevant various control informations of random back window that two networks enter flow process.Therefore, when carrying out mobile radio station that network enters flow process attempt initial network and enter during restart the base station, the probability of conflict may increase.This network by mobile radio station enters the service quality that delay reduces systematic function and reduces mobile radio station.
In order to solve this type of problem, according to another embodiment of the present invention, the window value of keeping out of the way that is defined in the initial ranging that is used for mobile radio station during restart the base station is different from the window value of keeping out of the way that is used for initial ranging during the spontaneous network of mobile radio station enters, with minimize the base station restart during network between the contingent mobile radio station enter conflict.
In addition, according to another embodiment of the present invention, restarting owing to the base station during the initial ranging that causes keeps out of the way, different initial ranging backoff parameter is being set according to the operator scheme (for example normal mode, sleep pattern and idle pulley) of mobile radio station.In this case, according to initial ranging backoff parameter set point, compare with sleep pattern or idle pulley, mobile radio station quickening initial network enters under the normal mode, and the base station suitably disperses the initial ranging of mobile radio station to attempt.
Hereinafter, the various parameters of suggestion during embodiment of the present invention will be described.Parameter described below be with the control information that is used for the mobile radio station initial ranging keep out of the way the relevant parameter of window.
Table 7a illustrates the example of the backoff parameter that is used for the initial ranging that causes owing to restarting of base station.
[table 7a]
Title Type (1 byte) Length Value
BS is restarted range finding and is kept out of the way TBD 1 The parameter that is used for the initial ranging carried out owing to restarting of base station.In more detail, by will be used for initial ranging initially keep out of the way the window size Expressing be the parameter that obtains of 2 power (be used for since BS restart the initial ranging competition that causes initially keep out of the way window size, be expressed as 2 power.)
Table 7b illustrates the example of the backoff parameter that is used for the initial ranging that causes owing to restarting of base station, wherein controls backoff parameter according to the operator scheme of mobile radio station.
[table 7b]
Title Type (1 byte) Length Value
BS is restarted range finding and is kept out of the way TBD 3 The parameter that is used for the initial ranging carried out owing to restarting of base station.In more detail, by will be used for initial ranging initially keep out of the way the window size Expressing be the parameter that obtains of 2 power (be used for since BS restart the initial ranging competition that causes initially keep out of the way window size, be expressed as 2 power.) and, can be according to the operator scheme of mobile radio station each position of following formation parameter.Position #0～position #7: normal mode keep out of the way window size position #8～position #15: sleep pattern keep out of the way window size position #16～position #23: idle pulley keep out of the way window size
Table 7c illustrates the example of the backoff parameter that is used for the initial ranging that causes owing to restarting of base station.
[table 7c]
Title Type (1 byte) Length Value
BS is restarted range finding and is kept out of the way beginning TBD 1 The parameter that is used for the initial ranging carried out owing to restarting of base station.In more detail, by will be used for initial ranging initially keep out of the way the window size Expressing be the parameter that obtains of 2 power (be used for since BS restart the initial ranging competition that causes initially keep out of the way window size, be expressed as 2 power.)
BS is restarted range finding and is kept out of the way end TBD 1 The parameter that is used for the initial ranging carried out owing to restarting of base station.In more detail, be the parameter that 2 power obtains by the window size Expressing of initially keeping out of the way that will be used for initial ranging.Be used for finally keeping out of the way window size, be expressed as 2 power owing to what BS was restarted the initial ranging competition that causes.
Table 7d illustrates the example of the backoff parameter that is used for the initial ranging that causes owing to restarting of base station, wherein controls backoff parameter according to the operator scheme of mobile radio station.
[table 7d]
Title Type (1 byte) Length Value
BS is restarted range finding and is kept out of the way beginning TBD 3 The parameter that is used for the initial ranging carried out owing to restarting of base station.In more detail, by will be used for initial ranging initially keep out of the way the window size Expressing be the parameter that obtains of 2 power (be used for since BS restart the initial ranging competition that causes initially keep out of the way window size, be expressed as 2 power.) and, can be according to the operator scheme of mobile radio station each position of following formation parameter.Position #0～position #7: normal mode keep out of the way window size position #8～position #15: sleep pattern keep out of the way window size position #16～position #23: idle pulley keep out of the way window size
BS is restarted range finding and is kept out of the way end TBD 3 The parameter that is used for the initial ranging carried out owing to restarting of base station.In more detail, by will finally keep out of the way the window size Expressing be the parameter that obtains of 2 power (be used for since BS restart the initial ranging competition that causes finally keep out of the way window size, be expressed as 2 power.) and, can be according to the operator scheme of mobile radio station each position of following formation parameter.Position #0～position #7: normal mode keep out of the way window size position #8～position #15: sleep pattern keep out of the way window size position #16～position #23: idle pulley keep out of the way window size
And, can be according to the operator scheme of mobile radio station and followingly comprise every parameter.
Table 7a illustrates and is used for the example by using to keep out of the way the parameter of window execution random back when mobile radio station is carried out initial ranging during restart the base station, and no matter the operator scheme of mobile radio station.And table 7b illustrates the operator scheme that is used for according to mobile radio station and keeps out of the way the example that window value is carried out the parameter of random back by application.
When the initial ranging by mobile radio station after is restarting by the parameter described in the use table 7b base station is carried out network and is entered, initial ranging is kept out of the way the operator scheme that window size depends on mobile radio station, provides different priority orders during entering with the network at mobile radio station again.In this case, can be with the mobile radio station of the normal mode of base station exchange business datum than the mobile radio station of sleep pattern or idle pulley access network quickly.In table 7b,, can be provided for the window size of keeping out of the way of initial ranging according to the priority order grade of the type of service that is activated of mobile radio station and mobile radio station though be used for the window size of keeping out of the way of initial ranging according to operator scheme being provided with of mobile radio station.
Operate under normal mode if the example of above parameter relates to mobile radio station, then provide a certain window size of keeping out of the way.Yet mobile radio station received the miscellaneous service with service quality (QoS) before restart the base station.In other words, mobile radio station can receive the business that needs the professional of real-time Transmission or do not need real-time Transmission relatively.If mobile radio station was receiving the business that needs real-time Transmission before restart the base station, then mobile radio station need enter network quickly after restart the base station.
In other words, more preferably according to the operator scheme that before restart the base station, offers the type of service of mobile radio station and mobile radio station be provided with according to the base station restart keep out of the way window size.
Table 7c and table 7d illustrate the example of initially keeping out of the way window size and finally keeping out of the way window size of keeping out of the way window size that is used for initial ranging of table 7a and 7b.
The mobile radio station that has received parameter shown in table 7a and the table 7b is applied to relevant parameters execution random back by the window of initially keeping out of the way that will be used for initial ranging.If mobile radio station fails to receive ranging response message, then mobile radio station can increase according to keep out of the way the window of keeping out of the way that the index of window parameter increases based on the correlation technique that is used for initial ranging shown in the table 2.In other words, by only parameter shown in use table 7a and the table 7b and the backoff parameter that is used for initial ranging shown in the use table 2 under the situation that initial ranging is attempted, mobile radio station can be carried out the initial ranging random back.
If mobile radio station receives the parameter shown in 7c and the 7d from the base station, even then keeping out of the way under the situation that window increases according to index and initial ranging random back, mobile radio station also can use random back based on the parameter shown in table 7c and the table 7d.
Table 7a only is an example of the present invention to the parameter of showing 7d, and the numerical value that uses in each parameter only is exemplary, to describe the present invention.Therefore, and be not intended to this type of numerical value that makes the present invention be confined to above-mentioned parameter, and can freely change these numerical value.Can change the type of aforesaid operations pattern according to service provider's intention.And be not intended to and make the present invention be confined to the aforesaid operations pattern therefore.
The example of table 7b and table 7d relates to the concrete window value of keeping out of the way is offered mobile radio station.Yet,, determine its parameter so preferably consider this feature because sleep pattern has various grades according to its operating characteristics.In other words, more preferably according to keeping out of the way window value corresponding to the grade kind setting of sleep pattern.
In addition, can only consider that as mentioned above concrete pattern determines to keep out of the way window size, for example, normal mode and sleep pattern.
Table 8a and table 8b illustrate and are revised as the example that is fit to correlation technique parameter of the present invention.
[table 8a]
Title Type (1 byte) Length Value
Initial_ra nging_ba ckoff_sta rt (initial ranging is kept out of the way beginning) 198 1 Be used for carrying out the parameter of initial ranging owing to restarting of base station.In more detail, be that (what be used for the initial ranging competition initially keeps out of the way window size to the parameter that obtains of 2 power, is expressed as 2 power by the window size Expressing of initially keeping out of the way that will be used for initial ranging.) this TLV (type, length and value) only uses the analog value that occurs with in the expression UCD message field in NBR-ADV (neighbor advertisement message).Under the situation that BS is restarted, this value should be modified with registered MS before adapting to.
Initial_ran ging_back off_end (initial ranging is kept out of the way end) 199 1 Be used for carrying out the parameter of initial ranging owing to restarting of base station.In more detail, be that (what be used for the initial ranging competition finally keeps out of the way window size to the parameter that obtains of 2 power, is expressed as 2 power by will finally keeping out of the way the window size Expressing.) this TLV (type, length and value) should be only uses the analog value that occurs with in the expression UCD message field in NBR-ADV (neighbor advertisement message).Under the situation that BS is restarted, this value should be modified with registered MS before adapting to.
[table 8b]
Title Type (1 byte) Length Value
Initial_rang ing_backoff _ start (initial ranging is kept out of the way beginning) 198 1 The parameter that is used for the initial ranging carried out owing to restarting of base station.In more detail, be that (what be used for the initial ranging competition initially keeps out of the way window size to the parameter that obtains of 2 power, is expressed as 2 power by will initially keeping out of the way the window size Expressing.) this TLV (type, length and value) should be only uses the analog value that occurs with in the expression UCD message field in NBR-ADV message.Under the situation that BS is restarted, this parameter is made up of following three parts.Position #0～position #3: normal mode keep out of the way window position #4～position #5: sleep pattern keep out of the way window, it is calculated as the power of the value of a #3 extremely from position #0.Position #6～position #7: idle pulley keep out of the way window, it is calculated as the power of the value from position #0 to a #3.
Initial_rang ing_backoff _ end (initial ranging is kept out of the way end) 199 1 The parameter that is used for the initial ranging carried out owing to restarting of base station.In more detail, be that (what be used for the initial ranging competition finally keeps out of the way window size to the parameter that obtains of 2 power, is expressed as 2 power by will finally keeping out of the way the window size Expressing.) this TLV (type, length and value) should be only uses the analog value that occurs with in the expression UCD message field in NBR-ADV message.Under the situation that BS is restarted, this parameter is made up of following three parts.Position #0～position #3: normal mode keep out of the way window position #4～position #5: sleep pattern keep out of the way window, it is calculated as the power of the value of a #3 extremely from position #0.Position #6～position #7: idle pulley keep out of the way window, it is calculated as the power of the value from position #0 to a #3.
In table 8a, when restarted the base station, the reentrant initial ranging of network of the mobile radio station of having registered before being used for was kept out of the way window value and is preferably set to this value greater than normal mode.In this case, when mobile radio station is carried out initial ranging, can avoid conflict.Table 8b illustrates the example that different initial ranging backoff parameter is set according to the operator scheme of mobile radio station during the initial ranging that causes owing to restarting of base station is kept out of the way.
As mentioned above, table 8a only is an example of the present invention to the parameter of showing 8b, and the numerical value that uses in each parameter only is exemplary, to describe the present invention.Therefore, and be not intended to this type of numerical value that makes the present invention be confined to above-mentioned parameter, and can freely change these numerical value.
Hereinafter, will describe by using above-mentioned parameter to carry out the reentrant method of network of mobile radio station.
Figure 14 is diagram is carried out the reentrant method of mobile radio station when restart the base station a flowchart illustration.Hereinafter, describe according to the reentrant method of above-mentioned parameter execution network with reference to Figure 14.
Below step S1401 will be described.
By the initial ranging backoff parameter via uplink channel descriptor (UCD) message, mobile radio station MS enters flow process by use random back execution initial network during initial ranging during the initial network described in correlation technique enters.Figure 14 illustrates the example that is set to 8 initial ranging backoff parameter.After being registered to the base station, the BS of mobile radio station receiving downlink channel descriptor message is restarted count parameter, to judge that whether carrying out network once more enters flow process.
Step S1402 represents that the base station restarts owing to power failure or maintenance.
Hereinafter, step S1403 will be described.
The count parameter value is restarted with the BS of downlink channel descriptor (DCD) message in the base station increases by 1, and subsequently the value that is increased is forwarded to mobile radio station.And by uplink channel descriptor messages (UCD), the window value (being made as 32 at Figure 14) of keeping out of the way that the base station will be used for the transmission of initial ranging sign indicating number is forwarded to mobile radio station during the initial network of mobile radio station enters flow process.
Now step S1404 will be described.
Received expression BS restarts the mobile radio station of the downlink channel descriptor message parameter that counting increased and carries out network and enter flow process from the base station.At this moment, mobile radio station is based on the random back value (being 10 in the example of Figure 14) that window parameter value (being 32 example of Figure 14) is identified for the transmission of initial ranging sign indicating number of keeping out of the way of the uplink channel descriptor messages that receives from the base station.
Hereinafter, step S1405 will be described.
Mobile radio station receives the time slot allocation information that is used for the transmission of initial ranging sign indicating number by uplink map (UL-MAP) message from the base station, and by using random back transmission initial ranging sign indicating number.For example, suppose that the random back value is set to 10.In this case, if 6 initial ranging time slots are assigned to uplink frame, then mobile radio station is not transferred to corresponding frame with the initial ranging sign indicating number.
Hereinafter, step S1406 will be described.
Mobile radio station is from base station receiving uplink mapping message, and whether inspection initial ranging time slot has been assigned to corresponding uplink frame.
Now step S1407 will be described.
Mobile radio station is transferred to corresponding initial ranging time slot by using the random back value with the initial ranging sign indicating number.
Step S1408 will be described.
Received base station from the initial ranging sign indicating number of mobile radio station by ranging response message (RNG-RSP) notice mobile radio station uplink transmission parameter adjustment value, such as time migration, frequency shift (FS) and power excursion, and the mobile radio station that has received uplink transmission parameter adjustment value is adjusted uplink transport parameter.This type of exchange flow process of ranging code and ranging response message is repeated in mobile radio station and base station, carries out the uplink transport parameter adjustment to allow mobile radio station.If successful execution the uplink transport parameter adjustment, then the base station is forwarded to the corresponding mobile station with successful code with ranging response message.
Hereinafter, step S1409 will be described.
The base station will be based on non-competing uplink resource allocation to the corresponding mobile station, to allow mobile radio station transmission distance measurement request message (RNG-REQ) by concrete uplink map information element (for example CDMA distributes UL-MAP IE).Mobile radio station is by using the uplink resource transmission distance measurement request message of being distributed, and wherein said distance measurement request message comprises the MAC Address of mobile radio station.
Below step S1410 will be described.
The base station that has received from the distance measurement request message of mobile radio station will be used to distribute the ranging response message of basic CID and main CID to be transferred to the corresponding mobile station.
Hereinafter, step S1411 will be described.
As shown in Figure 2, carry out such as flow processs such as basic capability negotiating, authentication and cipher key change, registration and Business Stream settings the mobile radio station and the base station of having finished the range finding flow process.
Step S1412 will be described as follows.
Mobile radio station and base station are finished network and are entered flow process and operate under normal manipulation mode.
If the base station keeps the information of mobile radio station during restart the base station, the range finding message of then passing through to use step S1409 and step S1410 is via the required information exchange of step S1411, and base station and mobile radio station can convert normal manipulation mode to.In this case, can omit the required message flow process of step S1411.
As mentioned above, described with the window value of keeping out of the way that is used for restarting the base station and differently be provided for the example of keeping out of the way window value that spontaneous network enters.
Hereinafter, use description to during the restarting of base station operator scheme and use the example that initial ranging is kept out of the way the operation of window value according to mobile radio station.
Figure 15 is that diagram is kept out of the way the flow chart of the method for window according to operator scheme application initial ranging.Hereinafter, with reference to Figure 15 the method for keeping out of the way window according to operator scheme application initial ranging is described.
Below step S1501 will be described.
During initial network entered, by using random back via the initial ranging backoff parameter of uplink channel descriptor (UCD) message during initial ranging, mobile radio station was carried out initial network and is entered flow process.Be registered to after the base station, the BS of mobile radio station receiving downlink channel descriptor (DCD) message is restarted count parameter, to judge that whether carrying out network once more enters flow process.In the example of Figure 15, backoff value is set to 8.
(S1502) restarted owing to power failure or maintenance in the base station.
Hereinafter, step S1503 will be described.
The count parameter value is restarted with the BS of downlink channel descriptor (DCD) message in the base station increases by 1, and then the value that is increased is forwarded to mobile radio station.And during the initial network of mobile radio station entered flow process, the base station was forwarded to mobile radio station by the window value of keeping out of the way that uplink channel descriptor messages (UCD) will be used for the transmission of initial ranging sign indicating number.At this moment, the base station allows the different window parameter values of keeping out of the way according to the operator scheme of mobile radio station.In the example of Figure 15, the window value of keeping out of the way of the mobile radio station under the normal mode is set to 12, and the window value of keeping out of the way of the mobile radio station under the sleep pattern is set to 24.
Now step S1504 will be described.
Received expression BS restarts the mobile radio station of the downlink channel descriptor message parameter that counting increased and carries out network and enter flow process from the base station.At this moment, mobile radio station is based on the random back value that window parameter value (shown in table 8a and the table 8b) is identified for the transmission of initial ranging sign indicating number of keeping out of the way of the uplink channel descriptor messages that receives from the base station.Depend on operator scheme if keep out of the way window value, then the window value of keeping out of the way according to corresponding modes is provided with the random back value.If the window parameter value of keeping out of the way of mobile radio station is set to 12 under the normal manipulation mode, then the mobile radio station of normal mode is determined backoff value (being 5 in the present embodiment) at random in 12 windows.If the window parameter value of keeping out of the way of mobile radio station is set to 24 under the sleep pattern, then the mobile radio station of sleep pattern is determined backoff value (being 24 in the present embodiment) at random in 24 windows.
If from the uplink map distribution of messages 8 initial ranging time slots (S1505), then the mobile radio station under the normal mode by the random back value be set to 5 will be at random the initial ranging sign indicating number be transferred to the 6th initial ranging time slot of corresponding uplink frame, and next initial ranging time slot of the mobile stations wait under the sleep operation pattern, till having distributed next initial ranging time slot (S1506).
If from the uplink map distribution of messages 8 initial ranging time slots (S1507), then the mobile radio station under the sleep pattern by the random back value be set to 14 will be at random the initial ranging sign indicating number be transferred to the 7th initial ranging time slot (S1508) of corresponding uplink frame.
Hereinafter, step S1509 will be described.
The mobile radio station that has transmitted under the normal manipulation mode of initial ranging sign indicating number receives ranging response message, and if the ranging parameters adjustment finish, then after transmission distance measurement request message, receive ranging response message, thereby finish the initial ranging flow process.
Hereinafter, step S1510 will be described.
The mobile radio station that has transmitted the initial ranging sign indicating number receives ranging response message, and if ranging parameters adjustment end, then after transmission distance measurement request message, receive ranging response message, thereby finish the initial ranging flow process.
Now step S1511 will be described.
As shown in Figure 2, flow process such as basic capability negotiating, authentication and cipher key change, registration and Business Stream setting is carried out in the normal manipulation mode of having finished range finding flow process mobile radio station and base station down.
Step S1512 will be described as follows.
As shown in Figure 2, the normal manipulation mode of having finished the range finding flow process down mobile radio station and the base station execution such as flow processs such as basic capability negotiating, authentication and cipher key change, registration and Business Stream settings.
Hereinafter, step S1513 will be described.
Mobile radio station under the normal mode and base station are finished network and are entered flow process again, and operate under normal manipulation mode.
Hereinafter, step S1514 will be described.
Mobile radio station under the sleep pattern and base station are finished network and are entered flow process again, and operate under normal manipulation mode.Mobile radio station can be transformed into sleep pattern by using sleep request message or sleep control header request base station.
If the base station keeps the information of mobile radio station during restart the base station, then via exchange step S1511 or the required information of step S1512, can convert base station and mobile radio station to normal manipulation mode by the range finding message of using step S1509 and step S1510.In this case, can omit the required message flow process of step S1511 or step S1512.
Hereinafter, a kind ofly a plurality of patterns are provided and keep out of the way the method for window value according to these patterns controls describing by independent signaling.
The example of Figure 14 and Figure 15 relates to the method for keeping out of the way window value that a kind of definition is used for during restart the base station carrying out the initial ranging of mobile radio station, and this definition is different from the window value of keeping out of the way that spontaneous network that definition is used to carry out mobile radio station enters employed initial ranging.In other words, in the example of Figure 14 and Figure 15, network is determined to be suitable for keeping out of the way window value and then the determined window value of keeping out of the way being offered mobile radio station of detailed status, and mobile radio station is operated according to keeping out of the way window value.
Yet, below the example of describing is provided the information of concrete control model by independent signaling.For example, if carry out generation problem in the process of initial ranging of mobile radio station during restart the base station, then the base station is defined as control model " 1 " and then determined value is transferred to mobile radio station.And if be used for the process generation problem of the initial ranging that the spontaneous network of mobile radio station enters in execution, then the base station is defined as control model " 0 " and then determined value is transferred to mobile radio station.
Mobile radio station can determine to keep out of the way window value by control model.In other words, if control model is confirmed as " 1 " and is transferred to mobile radio station then, then mobile radio station can enter by the relatively large window value execution network of keeping out of the way is set.If control model is confirmed as " 0 " and is transferred to mobile radio station then, then mobile radio station can enter by the less relatively window value execution network of keeping out of the way is set.
By as above operation, can reduce the expense between network and the mobile radio station, and can minimize the base station restart during network between the contingent mobile radio station enter conflict.
The example of control model can be applied to the operator scheme (for example normal mode, sleep pattern and idle pulley) of mobile radio station.For example, distribute different control models according to operator scheme.In other words, can notify by the control model value will be by the window value of keeping out of the way of the mobile radio station setting of operating under the normal mode.Can notify by the control model value will be by the window value of keeping out of the way of the mobile radio station setting of operating under the idle pulley.And can notify by the control model value will be by the window value of keeping out of the way of the mobile radio station setting of operating under the sleep pattern.
In addition, can offer the type of service of mobile radio station by control model control.For example, can offer the QoS information of mobile radio station by control model value notice.In other words, the first concrete control model value can be offered needs the mobile radio station of service in real time, and the second concrete control model value can be offered the mobile radio station that does not need real-time service.Mobile radio station can be provided with its suitable window value of keeping out of the way by given control model value, and attempts network and enter.
Can select the aforesaid operations pattern under various patterns, wherein every kind of operator scheme can be divided into various grades according to its feature.
Another embodiment of the present invention relates to the power saving grade configuration information of controlling previous serving BS when a kind of mobile radio station under battery saving mode carry out to switch discharges, upgrades or keep new handover-target base station after switching method.
At first, will describe but discharge the embodiment (embodiment 1) of the power saving grade configuration information situation of previous serving BS corresponding to not keeping.Figure 16 is the flow process that the signal flow between mobile radio station and the base station switches with execution in the illustrated embodiment 1.
Mobile radio station is to serving BS (base station 1) transmission handoff request message (MOB_MSHO-REQ), and reception is in response to the switching response message (MOB_MSHO-RSP) of this handoff request message.Then, mobile radio station is forwarded to serving BS with switch indicating information (MOB_HO_IND) and discharges and being connected of serving BS (base station 1) with request, and the network of execution and handover-target base station (base station 2) re-registers flow process.This flow process is described in the step S609 to S615 of Fig. 6.
Subsequently, mobile radio station enters (S1601) to relevant base station transmission distance measurement request message (RNG-REQ) with the network of carrying out handover-target base station (base station 2).The handover-target base station (base station 2) that has received distance measurement request message (RNG-REQ) is transmitted ranging response message (RNG-RSP) (S1603) to mobile radio station, and wherein this ranging response message comprises power saving grade undated parameter.At this moment, in power saving grade undated parameter, specify concrete value (for example 0x00 (referring to table 6)), defined mobile radio station power saving grade configuration information between wherein said concrete value indication releasing ms and the previous mobile radio station.Therefore, the mobile radio station that has received ranging response message (RNG-RSP) discharges previous power saving grade configuration information (S1605) according to power saving grade undated parameter.
Then, if finishing the network of handover-target base station (base station 2) enters and register flow path (S1607), then mobile radio station redefines the power saving grade and transmits sleep request message (MOB_SLP-REQ) to new serving BS (base station 2), with the corresponding power saving grade of requesting activation (S1609).Received new serving BS (base station 2) from the sleep request message (MOB_SLP-REQ) of mobile radio station by sleep response message (MOB_SLP-RSP) demonstrative definition with activate power saving grade (S1611).
Next, will describe corresponding to the embodiment (embodiment 2) of situation that after switching, upgrades the power saving grade configuration information of previous serving BS by the parameter value of presetting.Figure 17 is the flow process that the flow chart between mobile radio station and the base station switches with execution in the illustrated embodiment 2.
Mobile radio station is to serving BS (base station 1) transmission handoff request message (MOB_MSHO-REQ), and reception is in response to the switching response message (MOB_MSHO-RSP) of this handoff request message.Then, mobile radio station is forwarded to serving BS with switch indicating information (MOB_HO_IND) and discharges and being connected of serving BS (base station 1) with request, and the network of execution and handover-target base station (base station 2) re-registers flow process.This flow process is with identical with reference to the described flow process of Fig. 6.
Subsequently, mobile radio station enters (S1701) to relevant base station transmission distance measurement request message (RNG-REQ) with the network of carrying out handover-target base station (base station 2).The handover-target base station (base station 2) that has received distance measurement request message (RNG-REQ) is transmitted ranging response message (RNG-RSP) (S1703) to mobile radio station, and wherein this ranging response message comprises power saving grade undated parameter and the various power saving class parameters that will upgrade.At this moment, specify concrete value (for example, 0x01 (referring to table 6)) in power saving grade undated parameter, wherein defined power saving grade configuration information between mobile radio station and the previous base station (base station 1) is upgraded in this concrete value indication.Yet if only upgrade the sleep ID parameter of the 1st class power saving grade, handover-target base station can be transferred to mobile radio station with the sleep ID that is upgraded by sleep ID undated parameter, and wherein this sleep undated parameter comprises previous sleep ID and new sleep ID.
Receive the power saving grade and upgrade the new power saving class parameter (S1705) of power saving grade configuration information update that the mobile radio station of indication is kept previous base station (base station 1) for transmitting from handover-target base station (base station 2) by ranging response message (RNG-RSP).At this moment, mobile radio station can keep or discharge the previous configuration information that is not included in the power saving grade in the ranging response message (RNG-RSP).
The example that is included in the power saving class parameter in the ranging response message (RNG-RSP) is as follows.
[table 9]
Parameter name Type Length Value (variable)
Mark 1 Position 0: definition 1=defines current power saving grade; Position 1: operation (only RNG-RSP) 0=deexcitation power saving grade (only activating power saving grade Class1 and 2) for 1=; Position 2: the TRF-IND that only power saving grade type i is required; 1=BS should transmit a TRF-IND message at least during each audit window of power saving grade.For other type, this position should be set to 0; Position 3～7: keep.
Power_Saving_Class_ID (power saving grade ID) 2 1 The power saving class letter symbol that is distributed is not used in RNG-REQ message
Power_Saving_Class_Ty pe (power saving grade type) 3 1 Power saving grade type as defined among the 6.3.2.3
Start_frame_number (initial frame number) 4 1 The initial frame number of first sleeping window is not used in RNG-REQ message
Initial-sleep window (initial sleeping window) 5 1 Initial sleeping window
Listening window (audit window) 6 1 The MS listening intervals duration (in frame, measuring) of being distributed
Final-sleep window base (final sleeping window radix) 7 1 The end value of the sleep interval that is distributed (in frame, measuring)-radix
Final-sleep window exponent (final sleeping window index) 8 1 The end value of the sleep interval that is distributed (in frame, measuring)-index
SLPID
9 1 When MS is instructed to enter sleep pattern, by the numeral that BS distributed
CID 10 2 The CID of the connection in the power saving grade will be included in.In single compound Power_Saving_Class_Parameters (power saving class parameter) TLV, have a plurality of these type of TLV.
Direction 11 1 Add the direction that the management in the power saving grade connects to
Then, if finishing the network of handover-target base station (base station 2) enters and register flow path (S1707), then mobile radio station redefines the power saving grade, and sleeps request message (MOB_SLP-REQ) with the corresponding power saving grade of requesting activation (S1709) to new serving BS (base station 2) transmission.Received new serving BS (base station 2) from the sleep request message (MOB_SLP-REQ) of mobile radio station by sleep response message (MOB_SLP-RSP) demonstrative definition with activate power saving grade (S1711).
Next, will describe corresponding to the embodiment (embodiment 3) of situation that after switching, keeps the power saving grade configuration information of previous serving BS by the parameter value of presetting.Figure 18 is the flow process that the flow chart between mobile radio station and the base station switches with execution in the illustrated embodiment 3.
Mobile radio station is to serving BS (base station 1) transmission handoff request message (MOB_MSHO-REQ), and reception is in response to the switching response message (MOB_MSHO-RSP) of this handoff request message.Then, mobile radio station is forwarded to serving BS with switch indicating information (MOB_HO_IND) and discharges and being connected of serving BS (base station 1) with request, and the network of execution and handover-target base station (base station 2) re-registers flow process.This flow process is with identical with reference to the described flow process of Fig. 6.
Subsequently, mobile radio station enters (S1801) to relevant base station transmission distance measurement request message (RNG-REQ) with the network of carrying out handover-target base station (base station 2).The handover-target base station (base station 2) that has received distance measurement request message (RNG-REQ) is transmitted ranging response message (RNG-RSP) (S1803) to mobile radio station, and wherein this ranging response message comprises power saving grade undated parameter.At this moment, specify concrete value (for example, 0x02 (referring to table 6)) in power saving grade undated parameter, wherein this concrete value indication keeps defined mobile radio station power saving grade configuration information between mobile radio station and the previous mobile radio station.
Even after switching, receive the power saving grade configuration information (S1805) that indication keeps the mobile radio station of power saving class parameter to keep previous base station to keep by ranging response message (RNG-RSP).
Then, if having finished the network of handover-target base station (base station 2) enters and register flow path (S1807), then mobile radio station redefines the power saving grade, and sleeps request message (MOB_SLP-REQ) with the corresponding power saving grade of requesting activation (S1809) to new serving BS (base station 2) transmission.The new serving BS (base station 2) that has received from the sleep request message (MOB_SLP-REQ) of mobile radio station activates power saving grade (S1811) by sleep response message (MOB_SLP-RSP) indication.
Described in embodiment 1,2 and 3, defined power saving grade undated parameter can be forwarded to mobile radio station from handover-target base station by ranging response message (RNG-RSP) among the present invention.Selectively, power saving grade undated parameter can be forwarded to mobile radio station from the switching message (MOB_BSHO-REQ, MOB_BSHO-RSP) of handover-target base station or previous serving BS by registration reply message (REG-RSP).
In addition, even switch to handover-target base station and carry out under the reentrant situation of network of previous serving BS, also can be described in embodiment 1,2 and 3 be used for the flow process of the release/renewal/maintenance of power saving grade by the power saving grade undated parameter execution of using the ranging response message of transmitting from previous serving BS (RNG-RSP) in mobile radio station cancellation.
Simultaneously, the power saving grade that keeps among power saving grade of upgrading among the power saving grade that redefines among the embodiment 1, the embodiment 2 and the embodiment 3 can be respectively grade 1 to the grade 3 at least one.Hereinafter, with detailed description operation according to corresponding mobile radio station when the power saving grade is set to 1,2,3 respectively in each embodiment.
Figure 19 is that flow chart between mobile radio station and the base station is with the operating process of mobile radio station under the battery saving mode of diagram grade 1.
Mobile radio station is provided with in sleep request message (MOB_SLP-REQ) such as initial sleeping window, the final value of sleeping window and audit window, and set point is forwarded to the base station is transformed into battery saving mode (S1901) with request.The example of sleep request message (MOB_SLP-REQ) is as follows.
[table 10]
Parameter name Length (position) Note
Management message type=50 8
Grade quantity 8 The quantity of power saving grade
Definition 1
Operation 1
Power_Saving_Class_ID (power saving grade ID) 6
Start_frame_number (initial frame number) 6
Keep 2
Power_Saving_Class_Type (power saving grade type) 2
Direction 2
Traffic_triggered_wakening_flag (professional wake-up mark) 1
Keep 3
Initial-sleep window (initial sleeping window) 6，8
Listening window (audit window) 8
Final-sleep window base (final sleeping window radix) 10
Final-sleep window exponent (final sleeping window index) 3
Number_of_Sleep_CID (sleep CID quantity) 3
CID 16
The TLV coded message Variable
If the base station allows to be transformed into the battery saving mode of corresponding mobile radio station, then the base station is forwarded to mobile radio station (S1903) with sleep response message (MOB_SLP-RSP), and the value such as the numer of initial frames of initial sleeping window, final sleeping window, audit window and sleeping window wherein is set in sleep response message.At this moment, the example of sleep response message (MOB_SLP-RSP) is as follows.
[table 11]
Parameter name Length (position) Note
Management message type=51 8
Grade quantity 8 The quantity of power saving grade
Data length
7
The permission sleep 1
Definition 1
Operation 1
Power_Saving_Class_ID (power saving grade ID) 6
Start_frame_number (initial frame number) 6
Keep 2
Power_Saving_Class_Type (power saving grade type) 2
Direction 2
Initial-sleep window (initial sleeping window) 8
Listening window (audit window) 8
Final-sleep window base (final sleeping window radix) 10
Final-sleep window exponent (final sleeping window index) 3
Required TRF-IND 1
Traffic_triggered_ wakening_flag (professional wake-up mark) 1
Keep 1
SLPID 10
Keep 2
Number_of_CID (CID quantity) 4
CID 16
Keep diversity set and grappling BS 1
The MDHO/FBSS duration 3
Fill (Padding) Variable Byte boundary alignment if desired
Power saving grade TLV coded message Variable
The REQ duration 8
The TLV coded message Variable
Mobile radio station keeps equaling the sleep interval of initial sleeping window when being transformed into battery saving mode.If sleep interval expires, then receive service announcements message (MOB_TRF_IND) (S1905) from the base station in the listening intervals of mobile radio station after sleep interval.Not under the situation of the downlink business of mobile radio station (negative indication), then mobile radio station keeps battery saving mode in the time period of the twice that equals initial sleeping window.At this moment, the example of service announcements message (MOB_TRF_IND) is as follows.
[table 12]
Parameter name Length (position) Note
Management message type=52 8
FMT 1
SLPID group indication bitmap 32 The N position [MSB is corresponding to N=0] of SLPID group indication bitmap is assigned to and comprises that the SLPID that has from the MS of the SLPID value of N*32 to N*32+31 organizes; This implication of 0: for 32 MS that belong to the SLPID group, do not have business; 1: at least one MS in the SLPID group business is arranged.
Traffic indicator bit figure Variable Traffic indicator bit figure comprises a plurality of 32 long professional indicating members.Be set to 1 o'clock whenever its SLPID organizes, the professional indicating member of 32 SLPID all is added to MOB_TRF-IND message.32 professional indicating member (from MSB) is assigned to MS with the ascending order of its SLPID value; 0: negative indication 1: just indicate
Num_Pos 8 Quantity after the CID
SLPID
10
Fill Variable Byte boundary alignment if desired
TLV encodes Variable
Sleep interval is by continuing to increase with upper type (next sleeping window is set to the twice of previous sleeping window).By coming the following final sleeping window size that is provided with via the definite final window index of final window cardinal sum of sleep response message (MOB_SLP-RSP).
Final sleeping window=final sleeping window radix * 2 Final window index
If mobile radio station receives the service announcements message (just indicating) of listening intervals, then mobile radio station finishes battery saving mode, and wherein this service announcements message indication is towards the downlink business of mobile radio station.
Next, Figure 20 is that flow chart between mobile radio station and the base station is with the operating process of mobile radio station under the battery saving mode of diagram grade 2.
The mobile radio station request message (MOB_SLP-REQ) of will sleeping is forwarded to the base station is transformed into grade 2 with request battery saving mode (S2001).The base station that has received sleep request message (MOB_SLP-REQ) is provided with fixing sleep interval, fixing listening intervals and the change-over time that arrives battery saving mode in sleep response message (MOB_SLP-RSP), carry out the conversion (S2003) of the battery saving mode of grade 2 to allow mobile radio station.
Mobile radio station keeps battery saving mode (S2005) by sleep interval when being transformed into battery saving mode.If sleep interval expires, then mobile radio station and base station synchronization to be keeping the uplink/downlink communication with the base station, and receive the down link data from the base station, and in listening intervals to base station transmits uplink data (S2007).
If listening intervals expires, then mobile radio station keeps battery saving mode to save power (S2009) in sleep interval.Then, mobile radio station is operated under the battery saving mode of grade 2 by repeating step S2007 and step S2009.
If the mobile radio station expectation finishes the battery saving mode of grade 2, then mobile radio station finishes in that battery saving mode is being set in sleep request message (MOB_SLP-REQ) during the listening intervals, and battery saving mode end that will be set during the sleep mode spacing is forwarded to the base station or with user data transmission to the base station (S2011).
Next, Figure 21 is that flow chart between mobile radio station and the base station is with the operating process of mobile radio station under the battery saving mode of diagram grade 3.
Be powered and be converted into normal manipulation mode (S2101) by network registry flow process mobile radio station.Then, mobile radio station is periodically carried out the range finding flow process with the uplink communication of maintenance with the base station, thereby obtains suitable uplink transport parameter.Therefore, mobile radio station is forwarded to base station (S2103) in the Perodic ranging time with distance measurement request message (RNG-REQ).
The base station that has received from the distance measurement request message of mobile radio station is provided with uplink transmission parameter adjustment value in ranging response message, and ranging response message is forwarded to the corresponding mobile station.At this moment, the power saving class parameter shown in the table 6 (sleep interval, zero-time etc.) is included in the ranging response message, so that allow mobile radio station to carry out the conversion (S2105) of the battery saving mode of grade 3.
The mobile radio station that receives described conversion to battery saving mode by ranging response message keeps battery saving mode (S2107) in sleep interval when being transformed into battery saving mode.If sleep interval expires, then mobile radio station keeps the available communication state with the base station.Mobile radio station is at the Perodic ranging (S2109) of Perodic ranging time execution with the base station.Mobile radio station receives the ranging response message (RNG-RSP) from the base station, to obtain the parameter value that is used for uplink communication and to economize electrical quantity (S2111).The mobile radio station that has received province's electrical quantity keeps battery saving mode in sleep interval when being transformed into battery saving mode.Then, repeating step S409 and S411 (S2113, S2115).
Next, Figure 22 be mobile radio station with the base station between the operating process of the mobile radio station that is connected with the multicast under the battery saving mode of diagram grade 3 of flow chart.
The base station is forwarded to mobile radio station with sleep response message (MOB_SLP-RSP), carries out the conversion (S2201) of the battery saving mode of grade 3 to allow mobile radio station.The mobile radio station (start frame) to the conversion battery saving mode time that has received sleep response message keeps battery saving mode (S2203) in sleep interval.If sleep interval expires, then mobile radio station keeps the available communication state with the base station, and connects by multicast and to receive the data of transmitting from the base station (S2205).
If all data are transmitted in the base station under the state that keeps multicast to connect, then the base station is forwarded to mobile radio station with sleep response message (MOB_SLP-RSP), carry out the conversion of the battery saving mode of grade 3 with the permission mobile radio station, thereby till next multi-case data of transmission, save power (S2207).The mobile radio station that has received sleep response message keeps battery saving mode (S2209) in sleep interval when being transformed into battery saving mode.Then, if the base station transmits data, then deexcitation battery saving mode (S2211) once more, and repeating step S2203 to S2211.
Simultaneously, Figure 23 is the concept map of the operating characteristics of diagram when a plurality of battery saving mode grade of activation in mobile radio station.BWA supports the power saving grade of each connection to reduce the power consumption of mobile radio station according to type of service.As shown in the figure, should be noted that the wherein temporary transient mobile radio station forbidding of a plurality of power saving grades and the up link and the downlink communication of base station of activating, in the overlapping cycle at sleep interval of each grade, to avoid power consumption.
Figure 24 illustrates signal flow between mobile radio station and the base station is converted to the mobile radio station under the battery saving mode of grade 3 from grade 1 with diagram operating characteristics.
Usually, with two step operation battery saving modes, promptly define the step of power saving grade and the step of operation power saving grade.The step of described definition power saving grade is province's electrical quantity of definition such as sleeping window, audit window and connection ID.The step of this definition power saving grade comprises according to defined power saving grade distributes concrete power saving grade ID, and if have different province's electrical quantitys for a power saving grade, then distribute different power saving grade ID.And the step of operation power saving grade activates the operation of the power saving grade that operation or deexcitation activated of defined power saving grade.
In order to define the power saving grade, mobile radio station under the normal manipulation mode request message (MOB_SLP-REQ) of will sleeping is forwarded to serving BS (S2401), and wherein this sleep request message comprises the province's electrical quantity such as power saving grade type, closure, initial sleeping window, audit window, final sleeping window, final sleeping window index, service indicator mark and connection ID.At this moment, define field is set to 1 and is used to define the sleep request message of power saving grade with indication.
The base station that has received the sleep request message is forwarded to mobile radio station (S2403) with sleep response message (MOB_SLP-RSP), and wherein this sleep response message comprises the province's electrical quantity such as power saving grade type, closure, initial sleeping window, audit window, final sleeping window, final sleeping window index, service indicator mark, sleep ID and connection ID.
In order to ask to be transformed into battery saving mode, mobile radio station should be forwarded to base station (S2405) with sleep request message (MOB_SLP-REQ), and wherein this sleep request message comprises and is set to 1 operation field.At this moment, the mobile radio station request message of will sleeping transmits with the zero-time of battery saving mode.
Received the base station that its operation field is set to 1 sleep request message sleep response message (MOB_SLP-RSP) is forwarded to mobile radio station (S2407), wherein this sleep response message comprises and is set to 1 operation field and to the conversion zero-time of battery saving mode.
The mobile radio station that has received sleep response message is converted into battery saving mode (S2409) in zero-time.In the sleep interval as unavailable call duration time section, mobile radio station does not receive the down link signal transmitted from serving BS with minimise power consumption, and not to serving BS transmit uplink business.
On the other hand, in the listening intervals as the available communication time period, mobile radio station can be from the serving BS receiving downlink data and to serving BS transfer uplink data (S2411).If listening intervals expires, then mobile radio station keeps battery saving mode to avoid power consumption (S2413) by sleep interval.Mobile radio station is carried out transmission and the reception (S2415) with the uplink/downlink data of serving BS in listening intervals.
If mobile radio station should be during listening intervals deexcitation power saving grade, then mobile radio station is to base station transmits sleep request message (MOB_SLP-REQ) or sleep control header (S2417), wherein this sleep request message comprises and is set to 0 operation field, this operation field indication deexcitation battery saving mode.The deexcitation requested service base station that receives battery saving mode by sleep request message or sleep control header is forwarded to mobile radio station (S2419) with sleep response message (MOB_SLP-RSP), wherein this sleep response message comprises and is set to 0 operation field, this operation field indication deexcitation battery saving mode.Received its operation field and be set to the corresponding power saving grade of mobile radio station deexcitation of 0 sleep response message to finish battery saving mode.Then, if activated a plurality of power saving grades, operation that then can only the corresponding power saving grade of deexcitation.
Hereinafter, with the embodiment that describes in detail according to a further aspect of the invention.For this reason, will the embodiment of the improvement handover trigger information of suggestion of the present invention be described.Describe the method for switching according to execution of the present invention with reference to this embodiment that improves handover trigger information, and will describe the configuration of the mobile radio station of supporting this type of switching then.
According to an aspect of the present invention, also comprise at least one operation class information from the handover trigger information according to correlation technique of base station transmits, so that each grade is carried out independent switching associative operation.For this reason, provide independent control information to mobile radio station.To an embodiment who also comprises the handover trigger information of operating class information be described.
[table 13]
Title Type Length (1 byte) Value
Type/function/action 54.1 1
Trigger value 54.2 1 To compare to determine the value of trigger condition with the measurement metric
Trigger average duration 54.3 1 Section average time of the metric of measuring in the mobile radio station
Trigger action pattern/combination logic function 54.4 1 Position #0: normal running position #1: the battery saving mode position #2 of grade 1: the battery saving mode position #3 of grade 2: battery saving mode position #4～7 of grade 3: keep
Function
As shown in table 13, handover trigger information according to the present invention also comprises the trigger action pattern/combination logic function item of type 54.4, to specify the type that wherein will trigger the power saving grade of switching associative operation.Especially, in order to specify one or more power saving grades simultaneously, can use bitmap method into each allocation level of forming corresponding entry.For example, if the value of trigger action pattern/combination logic function item is 0x06 (00000110), then, just carry out concrete trigger action under the battery saving mode of grade 1 or grade 2 as long as mobile radio station is operated.
In addition, according to a further aspect in the invention, a plurality of switching associative operations that in mobile radio station, trigger have been specified simultaneously.For this reason, in handover trigger information, can in the bitmap method, specify and enable action item (Enable Action item) or can provide the independent control information of specifying a plurality of switching associative operations simultaneously to mobile radio station according to correlation technique.In this case, control information is preferred for carrying out simultaneously a plurality of switching associative operations during the sleep interval of battery saving mode separately.Table 14 illustrates the example of improvement handover trigger information according to an aspect of the present invention, and table 15 illustrates the example of independent control information according to a further aspect of the invention.
[table 14]
Title Length Value
Type 2 (MSB) 0x00:CINR tolerance 0x01:RSSI tolerance 0x02:RTD tolerance 0x03: keep
Function 3 0x00: keep 0x01: the tolerance of adjacent base station is greater than absolute value 0x02: the tolerance of adjacent base station is less than absolute value 0x03: the tolerance of adjacent base station is relatively greater than the tolerance 0x04 of serving BS: the tolerance of adjacent base station is relatively less than the tolerance 0x05 of serving BS: the tolerance of serving BS is greater than absolute value 0x06: the tolerance of serving BS is less than absolute value 0x07: keep
Enable action 3 (LSB) Position #0: trigger MOB_SCN-REP message response position #1 in each sweep time after the section: trigger MOB_MSHO-REQ message response position #2: mobile radio station begins scanning neighbor base stations, and this scanning is by transmission MOB_SCN-REQ message trigger
[table 15]
Title Length Value
Enable action triggers 1 byte If position #0 is set to 1: be set to 1 if trigger MOB_SCN-REP message response position #1 after the section in each sweep time: be set to 1 if trigger MOB_MSHO-REQ message response position #2: mobile radio station begins scanning neighbor base stations, and this scans by transmission MOB_SCN-REQ message trigger position #3～position #7: keep
In table 15, a position #3～position #7 who enables the action triggers item is default value and preferably be set to 0.
In the mode identical with correlation technique by being used for the message (downlink channel descriptor of transmitting channel information item; DCD) or be used to transmit the message (MOB_NBR-ADV) of adjacent base station information, can be with the handover trigger message transmission of table 14 and/or table 15 to mobile radio station.Alternatively, can be with handover trigger information with being transferred to mobile radio station according to the sleep response message (MOB_SLP-RSP) that is transformed into the request of mobile radio station sleep pattern or according to the ranging response message of the distance measurement request of mobile radio station.Especially, as described in another aspect of the present invention, preferably the information of table 15 is transmitted with the handover trigger information separated according to correlation technique.When needing under the situation at the battery saving mode of mobile radio station to revise or upgrade handover trigger information by DCD or MOB_NBR-ADV transmission, can use the information of table 15.
Hereinafter, the improvement handover trigger information of describing the application of the invention is carried out the various embodiment that switch under battery saving mode.
Figure 25 is that the flow chart between mobile radio station and the base station is carried out the embodiment that switches with diagram by using the handover trigger information that arrives via downlink channel descriptor (DCD) message or adjacent base station information (MOB_NBR-ADV) message sink under battery saving mode.
In the present embodiment, suppose that mobile radio station operates under the battery saving mode of grade 1.As a reference, the target of grade 1 is (BE) business of doing one's best with feature of existing internet service or Non-Real Time Variable Bit Rate (nrt-VR), and is defined by the initial frame number of initial sleeping window, final window radix, final window index, audit window and sleeping window.
Mobile radio station receives handover trigger information from serving BS by channel information messages (DCD) or adjacent base station information message (MOB_NBR-ADV).In this case, this handover trigger information comprises the item of table 13 and table 14.In first embodiment, suppose that grade 1 to grade 3 all is designated as the Action Target grade, and report: forbidding for the equal invisible scanning of all grades; Scan request: forbidding; And handoff request: enable.
Then, mobile radio station is used to be transformed into the sleep request message (MOB_SLP-REQ) of the battery saving mode of grade 1 to serving BS transmission, and receives sleep response message (MOB_SLP-RSP) in response to this sleep request message to enter sleep pattern (S2502).
Even in sleep interval, mobile radio station is also carried out the scanning (S2503) of adjacent base station, and will compare with identification whether carry out switching such as the tolerance of Signal Interference and Noise Ratio (SINR), received signal intensity indication (RSSI) and round-trip delay (RTD) and the control information of table 14 by what scanning was collected.
As a result, if will carry out the handoff request incident that generates of switching owing to judging, then mobile radio station checked before the switching of request serving BS whether the control information middle grade 1 at table 13 is designated as the Action Target grade.In first embodiment, because grade 1 is designated as the Action Target grade, and the handoff request item is set to " enabling " especially, so can carry out the triggering (S2504) of handoff request.
When carrying out the handoff request triggering, mobile radio station breaks away from sleep pattern with execution switching flow (S2505), and to serving BS transmission handoff request message (MOB_MSHO-REQ).If switching response message arrives from serving BS, then mobile radio station transmits switch indicating information (MOB_HO-IND) to discharge and being connected of serving BS to relevant base station.Subsequently, the mobile base station execution re-registers flow process (S2506) with the network of handover-target base station (BS 2).
With reference to Figure 26 step S2503 is described in more detail, i.e. operating process under the battery saving mode of grade 1.
Mobile radio station is provided with the value such as initial sleeping window, final sleeping window and audit window in sleep request message (MOB_SLP-REQ), and set point is forwarded to the base station is transformed into grade 1 with request battery saving mode (S2601).The example of sleep request message (MOB_SLP-REQ) is as follows.
[table 16]
Parameter name Length (position) Note
Management message type=50 8
Grade quantity 8 The quantity of power saving grade
Definition 1
Operation 1
Power_Saving_Class_ID (power saving grade ID) 6
Start_frame_number (initial frame number) 6
Keep 2
Power_Saving_Class_Type (power saving grade type) 2
Direction 2
Traffic_triggered_wakening_flag (professional wake-up mark) 1
Keep 3
Initial-sleep window (initial sleeping window) 6，8
Listening window (audit window) 8
Final-sleep window base (final sleeping window radix) 10
Final-sleep window exponent (final sleeping window index) 3
Number_of_Sleep_CID (sleep CID quantity) 3
CID 16
The TLV coded message Variable
If the base station allows corresponding mobile radio station to be transformed into battery saving mode, then the base station is forwarded to mobile radio station (S2603) with sleep response message (MOB_SLP-RSP), and the value such as the numer of initial frames of initial sleeping window, final sleeping window, audit window and sleeping window wherein is set in sleep response message.At this moment, the example of sleep response message (MOB_SLP-RSP) is as follows.
[table 17]
Parameter name Length (position) Note
Management message type=51 8
Grade quantity 8 The quantity of power saving grade
Data length
7
The permission sleep 1
Definition 1
Operation 1
Power_Saving_Class_ID (power saving grade ID) 6
Start_frame_number (initial frame number) 6
Keep 2
Power_Saving_Class_Type (power saving grade type) 2
Direction 2
Initial-sleep window (initial sleeping window) 8
Listening window (audit window) 8
Final-sleep window base (final sleeping window radix) 10
Final-sleep window exponent (final sleeping window index) 3
Required TRF-IND 1
Traffic_triggered_wakening_flag (professional wake-up mark) 1
Keep 1
SLPID 10
Keep 2
Number_of_CID (CID quantity) 4
CID 16
Keep diversity set and grappling BS 1
The MDHO/FBSS duration 3
Fill Variable Byte boundary alignment if desired
Power saving grade TLV coded message Variable
The REQ duration 8
The TLV coded message Variable
Mobile radio station keeps equaling the sleep interval of initial sleeping window when being transformed into battery saving mode.If sleep interval expires, then receive service announcements message (MOB_TRF IND) (S2605) from the base station in the listening intervals of mobile radio station before sleep interval.Not under the situation of the downlink business of mobile radio station (negative indication), then mobile radio station keeps battery saving mode in the time period of the twice that equals initial sleeping window.At this moment, the example of service announcements message (MOB_TRF_IND) is as follows.
[table 18]
Parameter name Length (position) Note
Management message type=52 8
FMT 1
SLPID group indication bitmap 32 The N position [MSB is corresponding to N=0] of SLPID group indication bitmap is assigned to and comprises that the SLPID that has from the MS of the SLPID value of N*32 to N*32+31 organizes this implication of 0: all do not have professional 1 for all 32 MS that belong to the SLPID group: at least one MS for SLPID organizes business is arranged
Traffic indicator bit figure Variable Traffic indicator bit figure comprises a plurality of 32 long professional indicating members.Be set to 1 o'clock whenever its SLPID organizes, the professional indicating member of 32 SLPID just is added to MOB_TRF-IND message.32 professional indicating member (from MSB) is assigned to MS 0 with the ascending order of its SLPID value: negative indication 1: just indicate
Num_Pos 8 Quantity after the CID
SLPID
10
Fill Variable Byte boundary alignment if desired
TLV encodes Variable
Sleep interval is by continuing to increase with upper type (next sleeping window is set to the twice of previous sleeping window).By coming the following final sleeping window size that is provided with via the definite final window index of final window cardinal sum of sleep response message (MOB_SLP-RSP).
Final sleeping window=final sleeping window radix * 2 Final window index
If mobile radio station receives the service announcements message (just indicating) of listening intervals, then mobile radio station finishes battery saving mode, and wherein this service announcements message indication is towards the downlink business of mobile radio station.
Figure 27 be the flow chart between mobile radio station and the base station when being transformed into battery saving mode to be shown in by using the handover trigger information that arrives via downlink channel descriptor (DCD) message or adjacent base station information (MOB_NBR-ADV) message sink under battery saving mode, to carry out the embodiment of switching.
In the present embodiment, the scan report of being enabled operates under the battery saving mode disabled, and the supposition mobile radio station is operated under the battery saving mode of grade 2.As a reference, the target of grade 2 is VoIP or real-time variable bit rate (rt-VR), and is defined by three values, the initial frame number of promptly initial sleeping window, audit window and sleeping window.
Mobile radio station receives handover trigger information (S2701) from serving BS by channel information messages (DCD) or adjacent base station information message (MOB_NBR-ADV).In this case, this handover trigger information comprises the item of table 13 and table 14.In a second embodiment, suppose that grade 1 to grade 3 all is appointed as the Action Target grade, and for grade 1 and grade 3, invisible scanning report: forbidding, scan request: forbidding, handoff request: enable; For grade 2, invisible scanning report: enable scan request: forbidding, handoff request: enable.
Then, mobile radio station is used to be transformed into the sleep request message (MOB_SLP-REQ) of the battery saving mode of grade 2 to serving BS transmission, and receives sleep response message (MOB_SLP-RSP) in response to this sleep request message to enter sleep pattern (S2702).At this moment, if mobile radio station is desirably in during the battery saving mode operation of forbidding scan report and only enables the handoff request operation, then the position #0 who enables action triggers item (table 15) that is included in the sleep request message (MOB_SLP-REQ) of mobile radio station is set to 1.If receive the response message (MOB_SLP-RSP) of the sleep request message (MOB_SLP-REQ) of correction, then mobile radio station is modified to Enabled_Action_Triggered (enabling action triggers) with the action item (table 14) of enabling of handover trigger information.
Simultaneously, even in sleep interval, mobile radio station also can be carried out the scanning (S2703) of adjacent base station, and will compare with identification whether carry out scan report such as the metric of Signal Interference and Noise Ratio (SINR), received signal intensity indication (RSSI) and round-trip delay (RTD) and the control information of table 14 by what scanning was collected.
In this case, even the preset degree value of collecting by scanning satisfies the function items of table 14 to be adapted to the occurrence condition of scan report incident, because in the Enabled_Action of table 14 (enabling action), #0 is disabled in the position, does not trigger (S2704) so in fact do not carry out scan report.Yet,,,, trigger (S2705) so normally carry out handoff request because in the Enabled_Action of table 14 (enabling action), position #1 (handoff request item) is activated if determine to carry out switching as scanning result.
When carrying out the handoff request triggering, mobile radio station breaks away from sleep pattern with execution switching flow (S2706), and to serving BS transmission handoff request message (MOB_MSHO-REQ).If switching response message arrives from serving BS, then mobile radio station once more to relevant base station transmission switch indicating information (MOB_HO-IND) to discharge and being connected of serving BS.Subsequently, the mobile base station execution re-registers flow process (S2707) with the network of handover-target base station (BS 2).
With reference to Figure 28 step S2702 is described in more detail, that is, and the operating process of the mobile radio station under the battery saving mode of grade 2.
The mobile radio station request message (MOB_SLP-REQ) of will sleeping is forwarded to the base station is transformed into grade 2 with special request battery saving mode (S2801).The base station that has received sleep request message (MOB_SLP-REQ) is provided with fixing sleep interval, fixing listening intervals and the time that is transformed into battery saving mode in sleep response message (MOB_SLP-RSP), carry out the conversion (S2803) of the battery saving mode of grade 2 to allow mobile radio station.
Keep battery saving mode (S2805) in the sleep interval of mobile radio station when being transformed into battery saving mode.If sleep interval expires, then mobile radio station and base station synchronization to be keeping the uplink/downlink communication with the base station, and receive from the down link data of base station and in listening intervals to base station transmits uplink data (S2807).
If listening intervals expires, then mobile radio station keeps battery saving mode to avoid power consumption (S2809) in sleep interval.Then, mobile radio station is operated under the battery saving mode of grade 2 by repeating step S2807 and step S2809.
If the mobile radio station expectation finishes the battery saving mode of grade 2, then mobile radio station finishes in that battery saving mode is being set in sleep request message (MOB_SLP-REQ) during the listening intervals, and battery saving mode end that will be set during sleep interval is forwarded to the base station or with user data transmission to the base station (S2811).After the battery saving mode that finishes grade 2 (S2813), the mobile radio station normal running.
Figure 29 be between mobile radio station and the base station flow chart be shown in be transformed into battery saving mode the time by using the handover trigger information that arrives via downlink channel descriptor (DCD) message or adjacent base station information (MOB_NBR-ADV) message sink under battery saving mode, to carry out another embodiment of switching.
In the present embodiment, under battery saving mode, enable disabled scan report operation, and the supposition mobile radio station is operated under the battery saving mode of grade 3.As a reference, grade 3 is data that the administrative messag (such as DCD/UCD and MOB_NBR-ADV) that is used for being forwarded to the mobile radio station that is in battery saving mode by the cycle maybe will be multicast forwarding, and is defined by the initial frame number of final window radix, final window index and sleeping window.
Mobile radio station receives handover trigger information (S2901) from serving BS by channel information messages (DCD) or adjacent base station information message (MOB_NBR-ADV).In this case, this handover trigger information comprises the item of table 13 and table 14.In the 3rd embodiment, suppose that grade 1 to grade 3 all is appointed as the Action Target grade, and for whole grade 1 to grade 3, invisible scanning report: forbidding, scan request: forbidding, and handoff request: enable.
Then, mobile radio station is used to be transformed into the sleep request message (MOB_SLP-REQ) of the battery saving mode of grade 3 to serving BS transmission, and receives sleep response message (MOB_SLP-RSP) in response to this sleep request message to enter sleep pattern (S2902).At this moment, enable the scan report operation during the battery saving mode if mobile radio station is desirably in, then the position #0 who enables action triggers item (table 15) that is included in the sleep request message (MOB_SLP-REQ) of mobile radio station is set to 1.If receive the response message (MOB_SLP-RSP) of the sleep request message (MOB_SLP-REQ) of correction, then mobile radio station is modified to the action item (table 14) of enabling of handover trigger information to enable the action triggers item.
Simultaneously, even in sleep interval, mobile radio station also can be carried out the scanning (S2903) of adjacent base station, and will compare with identification whether carry out scan report such as the metric of Signal Interference and Noise Ratio (SINR), received signal intensity indication (RSSI) and round-trip delay (RTD) and the control information of table 14 by what scanning was collected.
In this case, even the preset degree value of collecting by scanning satisfies the function items of table 14 to be adapted to the occurrence condition of scan report incident, because in the Enabled_Action of table 14 (enabling action), position #0 is activated, and triggers (S2904) so carry out scan report.Like this, if after being transformed into battery saving mode, satisfy the condition of carrying out scan report, then mobile radio station also keeps battery saving mode (S2905) then to the scan report message (MOB_SCN-REP) of serving BS transport communication availability interval (listening intervals or availability interval).
Simultaneously, as the result of scanning,, then, trigger (S2906) so normally carry out handoff request owing to enable a #1 (handoff request item) in the action item enabling of table 14 if determine to carry out switching.
When carrying out the handoff request triggering, mobile radio station breaks away from sleep pattern with execution switching flow (S2907), and to serving BS transmission handoff request message (MOB_MSHO-REQ).If switching response message arrives from serving BS, then mobile radio station once more to relevant base station transmission switch indicating information (MOB_HO-IND) to discharge and being connected of serving BS.Subsequently, the mobile base station execution re-registers flow process (S2908) with the network of handover-target base station (BS 2).
With reference to Figure 30 step S2902 is described in more detail, that is, and the operating process of the mobile radio station under the battery saving mode of grade 2.
Be powered and be converted into normal manipulation mode (S3001) by network registry flow process mobile radio station.Then, mobile radio station is periodically carried out the range finding flow process with the uplink communication of maintenance with the base station, thereby obtains suitable uplink transport parameter.Therefore, mobile radio station is forwarded to base station (S2103) in the Perodic ranging time with distance measurement request message (RNG-REQ).
The base station that has received from the distance measurement request message of mobile radio station is provided with uplink transmission parameter adjustment value in ranging response message, and ranging response message is forwarded to the corresponding mobile station.At this moment, the power saving class parameter shown in the table 18 (sleep interval, zero-time etc.) is included in the ranging response message, so that allow mobile radio station to carry out the conversion (S3005) of the battery saving mode of grade 3.
The mobile radio station that receives described conversion to battery saving mode by ranging response message keeps battery saving mode (S3007) in sleep interval when being transformed into battery saving mode.If sleep interval expires, then mobile radio station keeps the available communication state with the base station.Mobile radio station is at the Perodic ranging (S3009) of Perodic ranging time execution with the base station.Mobile radio station receives the ranging response message (RNG-RSP) from the base station, to obtain the parameter value that is used for uplink communication and to economize electrical quantity (S3011).The mobile radio station that has received province's electrical quantity keeps battery saving mode in sleep interval when being transformed into battery saving mode.Then, repeating step S3009 and S3011 (S3013, S3015).
Next, Figure 31 be mobile radio station with the base station between the operating process of the mobile radio station that is connected with the multicast under the battery saving mode that illustrates grade 3 of flow chart.
The base station is forwarded to mobile radio station with sleep response message (MOB_SLP-RSP), carries out the conversion (S3101) of the battery saving mode of grade 3 to allow mobile radio station.The mobile radio station (start frame) when being transformed into battery saving mode that has received sleep response message keeps battery saving mode (S3103) in sleep interval.If sleep interval expires, then mobile radio station keeps the available communication state with the base station, and connects by multicast and to receive the data of transmitting from the base station (S3105).
If all data are transmitted in the base station under the state that keeps multicast to connect, then the base station is forwarded to mobile radio station with sleep response message (MOB_SLP-RSP), carry out the conversion of the battery saving mode of grade 3 with the permission mobile radio station, thereby save power (S3107) till knowing next multi-case data of transmission.The mobile radio station that has received sleep response message keeps battery saving mode (S3109) in sleep interval when being transformed into battery saving mode.Then, if the base station transmits data, then deexcitation battery saving mode (S3111) once more, and repeating step S3103 to S3111.
Simultaneously, Figure 32 is the concept map of the operating characteristics of diagram when a plurality of battery saving mode grade of activation in mobile radio station.BWA supports the power saving grade of each connection to reduce the power consumption of mobile radio station according to type of service.As shown in the figure, should be noted that wherein the temporary transient mobile radio station forbidding of a plurality of power saving grades and the up link and the downlink communication of base station of activating, to avoid power consumption in the section overlapping time at the sleep interval of each grade.
Figure 33 illustrates signal flow between mobile radio station and the base station is converted to the mobile radio station under the battery saving mode of grade 3 from grade 1 with diagram operating characteristics.
Usually, with two step operation battery saving modes, promptly define the step of power saving grade and the step of operation power saving grade.The step of described definition power saving grade is province's electrical quantity of definition such as sleeping window, audit window and connection ID.The step of this definition power saving grade comprises according to defined power saving grade distributes concrete power saving grade ID, and if have different province's electrical quantitys for a power saving grade, then distribute different power saving grade ID.And the step of operation power saving grade activates the operation of the power saving grade that operation or deexcitation activated of defined power saving grade.
In order to define the power saving grade, mobile radio station under the normal manipulation mode request message (MOB_SLP-REQ) of will sleeping is forwarded to serving BS (S3301), and wherein this sleep request message comprises the province's electrical quantity such as power saving grade type, closure, initial sleeping window, audit window, final sleeping window, final sleeping window index, service indicator mark and connection ID.At this moment, define field is set to 1 and is used to define the sleep request message of power saving grade with indication.
The base station that has received the sleep request message is forwarded to mobile radio station (S3303) with sleep response message (MOB_SLP-RSP), and wherein this sleep response message comprises the province's electrical quantity such as power saving grade type, closure, initial sleeping window, audit window, final sleeping window, final sleeping window index, service indicator mark, sleep ID and connection ID.
In order to ask to be transformed into battery saving mode, mobile radio station should be forwarded to base station (S3305) with sleep request message (MOB_SLP-REQ), and wherein this sleep request message comprises and is set to 1 operation field.At this moment, the mobile radio station request message of will sleeping transmits with the zero-time of battery saving mode.
Received the base station that its operation field is set to 1 sleep request message sleep response message (MOB_SLP-RSP) is forwarded to mobile radio station (S3307), wherein this sleep response message comprises and is set to 1 operation field and to the conversion zero-time of battery saving mode.
The mobile radio station that has received sleep response message is converted into battery saving mode (S3309) in zero-time.In the sleep interval as unavailable call duration time section, mobile radio station does not receive the down link signal transmitted from serving BS with minimise power consumption, and not to serving BS transmit uplink business.
On the other hand, in the listening intervals as the available communication time period, mobile radio station can be from the serving BS receiving downlink data and to serving BS transfer uplink data (S3311).If listening intervals expires, then mobile radio station keeps battery saving mode to avoid power consumption (S3313) by sleep interval.Mobile radio station is carried out transmission and the reception (S3315) with the uplink/downlink data of serving BS in listening intervals.
If mobile radio station should be during listening intervals deexcitation power saving grade, then mobile radio station is to base station transmits sleep request message (MOB_SLP-REQ) or sleep control header (S3317), wherein this sleep request message comprises and is set to 0 operation field, this operation field indication deexcitation battery saving mode.The deexcitation requested service base station that receives battery saving mode by sleep request message or sleep control header is forwarded to mobile radio station (S3319) with sleep response message (MOB_SLP-RSP), wherein this sleep response message comprises and is set to 0 operation field, this operation field indication deexcitation battery saving mode.Received its operation field and be set to the corresponding power saving grade of mobile radio station deexcitation of 0 sleep response message to finish battery saving mode.Then, if activated a plurality of power saving grades, operation that then can only the corresponding power saving grade of deexcitation.
Now, will the element of the mobile radio station of the said method of supporting that execution is switched be described.
Figure 34 is the block diagram that illustrates the main element of the mobile radio station of supporting changing method of the present invention.
User's mobile radio station comprises the input module 3401 of selecting desired function or input information; The display module 3403 that shows the various information be used to operate user's mobile radio station; Various flow processs that storage operation user's mobile radio station is required and will be transferred to the memory module 3405 of recipient's data; Receive external signal and transmit the radio communication module 3407 of data to the recipient; Convert digital audio and video signals to simulated audio signal, amplify the audio signal changed and institute's amplifying signal is outputed to loud speaker, or amplify the audio signal of microphone (MIC) and institute's amplifying signal is converted to the audio process 3409 of digital signal; And the control module 3411 of the integral body driving of control user mobile radio station.
Radio communication module 3407 also comprises the function that receives handover trigger information and be used for the signal of channel quality measurement.Control module 3411 also comprises following function: under sleep pattern, carry out the scanning of adjacent base station, and if scanning result be fit to the trigger condition that is provided with in the trigger message, then trigger the concrete switching associative operation of appointment in the described trigger message.
Especially, control module 3411 can also comprise following function: the action triggers item of enabling of table 15 is included in the sleep request message (MOB_SLP-REQ) that is transferred to the base station to enter battery saving mode, or be included in the distance measurement request message (RNG-REQ) that is used for switching, and can comprise following function: the action item of enabling of table 14 is modified to be included in and enables the action triggers item in sleep request message (MOB_SLP-REQ) or the distance measurement request message (RNG-REQ).
Hereinafter, will the operating process of mobile radio station according to another embodiment of the present invention be described.
If mobile radio station is controlled the power saving grade configuration information of first base station during switching to second base station from first base station, then radio communication module 3407 is used for distance measurement request message that network enters and receives ranging response message from second base station to second base station transmits, and wherein this ranging response message comprises the control information of the power saving grade configuration information of first base station.
In addition, control module 3411 is controlled the power saving grade configuration information of first base station, the power saving grade configuration information that discharges particularly, upgrades and keep first base station according to this control information.
At this moment, if control module 3411 discharges power saving grade configuration informations, then radio communication module 3407 is used for the request message of the new power saving grade of defined and active to second base station transmits, and receives the response message in response to this request message from second base station.Control module 3411 is according to corresponding response message definition and activate new power saving grade, to carry out the conversion of battery saving mode.
In addition, if control module 3411 is upgraded power saving grade configuration information, then control module 3411 is the grade configuration information that is included in the trigger message with existing grade configuration information update.In this case, radio communication module 3407 to second base station transmits be used to activate upgrade the request message of power saving grade, and receive response message in response to this request message from second base station.Control module 3411 activates the power saving grade according to corresponding response message, to carry out the conversion of battery saving mode.
In addition, if control module 3411 keeps power saving grade configuration information, then control module 3411 keeps corresponding grade configuration information according to trigger message.At this moment, radio communication module 3407 is used to activate the request message of the power saving grade that is kept to second base station transmits, and receives the response message in response to this request message from second base station.Control module 3411 activates the power saving grade according to corresponding response message, to carry out the conversion of battery saving mode.
Simultaneously, the example according to user's mobile radio station of the present invention comprises PDA(Personal Digital Assistant), cellular phone, personal communication service (PCS) phone, global system for mobile communications (GSM) phone, wideband CDMA (WCDMA) phone and mobile broadband system (MBS) phone.
According to one embodiment of present invention, if enter in the process of flow process at the network of carrying out mobile radio station, in the reasonable time section network is not entered the required administrative messag of flow process and another administrative messag and exchange, then well-defined operation is to carry out normal running between mobile radio station and base station.
According to another embodiment of the present invention, initial ranging during entering with the spontaneous network that is used for mobile radio station keep out of the way the window value of keeping out of the way that window value differently defines mobile radio station initial ranging during being used for the base station and restarting, with minimize the base station restart during network between the contingent mobile radio station enter conflict.In addition, restarting owing to the base station during the initial ranging that causes keeps out of the way, operator scheme according to mobile radio station is provided with different initial ranging backoff parameter, so that compare with sleep pattern or idle pulley, mobile radio station under the normal mode is accelerated initial network according to initial ranging backoff parameter set point and is entered, and the base station suitably disperses the initial ranging of mobile radio station to attempt.
According to another embodiment of the present invention, owing to provide a kind of and be used for after switching to second base station, discharging/keeping/be updated in first base station because of switching by the method for the power saving grade of deexcitation, so can control mobile radio station so that under the most effective battery saving mode, operating mobile radio station according to network state between transfer period.And, can prevent to carry out the flow process of repetition, in second base station that reenters, to carry out the conversion of battery saving mode.
It will be apparent to those skilled in the art that under the situation that does not deviate from spirit of the present invention and substantive characteristics and can embody the present invention with other concrete form.Therefore, should in all fields above embodiment be considered as illustrative and nonrestrictive.Should determine scope of the present invention by the reasonable dismissal of claims, and all modifications in equivalency range of the present invention includes within the scope of the invention.
Industrial applicibility
The present invention can be applied to wireless communication system, such as wireless internet system and GSM.

Claims (58)

1. the method for the flow process that enters of a network of in BWA, carrying out to be used for mobile radio station, described method comprises:
From the base station assigns transmission parameter;
At least carry out the uplink band request that once is used for to described base station transmits up link administrative messag; And
Even if after experience Preset Time section also unallocated uplink band, then be used for the downlinlc message of next flow process from the reception of described base station.
2. method according to claim 1, wherein said transmission parameter comprise basic connection identifier (CID and main managing connection identification.
3. method according to claim 1, wherein said up link administrative messag are any one in basic capacity request message (SBC-REQ), private key management request message (PKM-REQ) and the login request message (REG-REQ).
4. according to any one the described method among the claim 1-3, wherein said up link administrative messag is that the described mobile radio station of order is carried out the reset command information (RES-CMD) that new network enters flow process.
5. according to the method for claim 4, also comprise discharging described transmission parameter.
6. according to any one the described method among the claim 1-3, wherein said up link administrative messag is to be used for to the message of mobile radio station distribution based on non-competing uplink radio resources.
7. according to the method for claim 6, also comprise by described and transmit described up link administrative messag based on non-competing uplink radio resources.
8. according to any one the described method among the claim 1-3, wherein said up link administrative messag is the described mobile radio station of order enters flow process with the network of carrying out another base station a message.
9. method according to claim 8 also comprises discharging described transmission parameter.
10. the method for the flow process that enters of a network of in BWA, carrying out to be used for mobile radio station, described method comprises:
Distribute transmission parameter to mobile radio station;
In the Preset Time section, check the uplink band request that is used for the transmit uplink administrative messag that whether exists from mobile radio station; And
Even if there is no described uplink band request after the experience preset time period is then transmitted the downlinlc message that is used for next flow process to mobile radio station.
11. the method for the flow process that a network of carrying out to be used for mobile radio station in BWA enters, described method comprises:
To base station transmits login request message (REG-REQ);
Receive registration reply message (REG-RSP) from described base station;
If in the Preset Time section, do not receive the downlinlc message that is used to be provided with Business Stream, then with its informing base station from the base station; And
Receive the described downlinlc message that is used to be provided with Business Stream from described base station.
12. the method for the flow process that a network of carrying out to be used for mobile radio station in BWA enters, described method comprises:
Receive login request message (REG-REQ) from described mobile radio station;
To described mobile radio station transmission registration reply message (REG-RSP);
At least once transmit the downlinlc message that is used to be provided with Business Stream to mobile radio station; And
If in the Preset Time section, do not receive the response of the downlinlc message that is used to be provided with Business Stream, then carry out the beginning flow process once more to order described mobile radio station to described mobile radio station communicating downlink message from described mobile radio station.
13. the method for the flow process that a network of carrying out to be used for mobile radio station in BWA enters, described method comprises:
To base station transmits login request message (REG-REQ);
Receive registration reply message (REG-RSP) from described base station;
If in the Preset Time section, do not receive the downlinlc message that is used to be provided with Business Stream, then to described base station transmits registration release request message from described base station; And
Receive registration from described base station and discharge response message.
14. method according to claim 13 also comprises the transmission parameter of release from described base station assigns.
15. carry out the method that network enters for one kind in wireless communication system, described method comprises:
The network that receives the network entry time of at least one mobile radio station enters control information again, and described network enters that control information is set to be used for because the reentrant occurrence of restarting of base station again; And
Entering control information execution network again according to the network that is received enters again.
The network that is provided with enters control information 16. method according to claim 15, wherein said network enter that control information is different from that the spontaneous network that is used for mobile radio station enters again.
17. it is the control information of keeping out of the way window that is used for initial ranging that method according to claim 15, wherein said network enter control information again.
The network that is provided with enters the network entry time of control information 18. method according to claim 15, wherein said network enter that the network entry time of control information is slower than that the spontaneous network that is used for described mobile radio station enters again.
19. method according to claim 15, wherein said network enter again control information be set to be received in described base station restart before at least one mobile radio station of network registry.
20. method according to claim 15, wherein said network enter the operator scheme that the network entry time of control information depends on described mobile radio station again.
21. method according to claim 20, wherein said operator scheme comprises any one in normal mode, sleep pattern and the idle pulley.
22. method according to claim 21, wherein said sleep pattern is divided into a plurality of grades.
23. entering the network entry time of control information again, method according to claim 20, wherein said network depend on the type of service that offers described mobile radio station.
24. carry out the method that network enters for one kind in wireless communication system, described method comprises:
If owing to restarting and need re-registering of the first concrete mobile radio station in the base station,
Then the network of the network entry time of at least one mobile radio station enters control information again and is set at the determined first concrete value of re-registering of causing owing to restarting of described base station, and this set point is transferred to described mobile radio station; And
Enter the flow process that re-registers that described first mobile radio station that network enters carry out is attempted in control information again based on described network.
25. a method of carrying out the switching of mobile radio station the process of the power saving grade configuration information of controlling first base station during first base station switches to second base station under battery saving mode, described method comprises:
To be used for the distance measurement request message that network enters and be transferred to described second base station from mobile radio station;
Receive ranging response message from described second base station, described ranging response message comprises the control information of the power saving grade configuration information of first base station; And
Handle the power saving grade configuration information of described first base station according to described control information.
26. method according to claim 25, wherein said control information are the information that indication discharges the power saving grade configuration information of described first base station, and described mobile radio station discharges corresponding grade configuration information according to described control information.
27. method according to claim 26 further comprises:
The request message that will be used for the new power saving grade of defined and active is transferred to described second base station from described mobile radio station; And
Receive the response message of described request message from described second base station,, and carry out the conversion of described battery saving mode according to the described new power saving grade of corresponding response message defined and active.
28. method according to claim 25, wherein said control information comprises that the power saving grade configuration information of described first base station is upgraded in indication and with the information of the power saving grade configuration information that is updated, and mobile radio station will to have the grade configuration information update now be the grade configuration information that is included in the described control information.
29. method according to claim 28, wherein the item of the existing grade configuration information that does not upgrade is kept intact.
30. method according to claim 28, wherein the item of the existing grade configuration information that does not upgrade is released.
31., further comprise according to claim 28 any one described method to the claim 30:
The request message that will be used to activate the power saving grade of being upgraded is transferred to described second base station from described mobile radio station; And
Receive the response message of described request message from described second base station, activate described power saving grade according to corresponding response message, and carry out the conversion of described battery saving mode.
32. method according to claim 25, wherein said control information comprise that indication keeps the information of the power saving grade configuration information of described first base station, and described mobile radio station keeps corresponding grade configuration information according to described control information.
33. method according to claim 32 further comprises:
The request message that will be used to activate the power saving grade that is kept is transferred to described second base station from described mobile radio station; And
Receive the response message of described request message from described second base station, activate described power saving grade according to corresponding response message, and carry out the conversion of described battery saving mode.
34. method according to claim 25 further comprises:
Cancel to the switching of described second base station and carry out entering again of described first base station;
Be used for the reentrant distance measurement request message of network to described first base station transmits;
Receive ranging response message from described first base station, described ranging response message comprises the control information of described power saving grade configuration information; And
Handle described power saving grade configuration information according to described control information.
35. the mobile radio station of the power saving configuration information of control first base station during switching to second base station from first base station, described mobile radio station comprises:
Radio communication module, described radio communication module will be used for the distance measurement request transmission of messages that network enters and receive ranging response message to described second base station and from described second base station, and described ranging response message comprises the control information of the described power saving grade configuration information of described first base station; And
Control module, described control module are handled the power saving grade configuration information of described first base station according to described control information.
36. mobile radio station according to claim 35, wherein said control information are the information that indication discharges the described power saving grade configuration information of described first base station, and described control module discharges corresponding grade configuration information according to described control information.
37. mobile radio station according to claim 36, wherein said radio communication module also comprises to described second base station transmits and is used for the request message of the new power saving grade of defined and active and receives the function of the response message of described request message from described second base station, and described control module also comprises according to the corresponding new power saving grade of response message defined and active and carries out the function of the conversion of battery saving mode.
38. mobile radio station according to claim 35, wherein said control information comprises that the power saving grade configuration information of described first base station is upgraded in indication and with the information of the power saving grade configuration information that is updated, and described control module is the grade configuration information that is included in the described control information with existing grade configuration information update.
39. according to the described mobile radio station of claim 38, wherein said radio communication module further comprises the request message transmission that will be used to activate the power saving grade of being upgraded to second base station and receive the function of the response message of described request message from described second base station, and described control module further comprises according to corresponding response message and activates described power saving grade and carry out the function of the conversion of battery saving mode.
40. mobile radio station according to claim 35, wherein said control information are the information that indication keeps the power saving grade configuration information of described first base station, and described control module keeps corresponding grade configuration information according to described control information.
41. according to the described mobile radio station of claim 40, wherein said radio communication module further comprise will be used to activate the request message transmission of the power saving grade that is kept to described second base station and receive the function of the response message of described request message from described second base station, and described control module further comprises according to corresponding response message and activates described power saving grade and carry out the function of the conversion of battery saving mode.
42. mobile radio station according to claim 35, if wherein cancel to the switching of second base station and carry out reentering of described first base station, then described radio communication module further comprises and will be used for the function that the reentrant request message transmission of network arrives described first base station and receives ranging response message from described first base station, described ranging response message comprises the control information of described power saving grade configuration information, and described control module further comprises according to the function of handling described power saving grade configuration information from the described control information of described first base station transmits.
43. a method of carrying out the switching of mobile radio station in the process of the power saving grade configuration information of the mobile radio station control second base station during first base station switches to second base station under battery saving mode, described method comprises:
Be used for the distance measurement request message that network enters into second base station from the mobile radio station reception; And
To described mobile radio station transmission ranging response message, described ranging response message comprises the control information of the power saving grade configuration information of described first base station.
44. according to the described method of claim 43, wherein said control information is the information that indication discharges the power saving grade configuration information of described first base station.
45. according to the described method of claim 43, wherein said control information comprises that the power saving grade configuration information of described first base station is upgraded in indication and with the information of the power saving grade configuration information that is updated.
46. according to the described method of claim 43, wherein said control information is the information that indication keeps the power saving grade configuration information of described first base station.
47. a method of carrying out the switching of mobile radio station in the process of switching associative operation according to the handover trigger information and executing, described method comprises:
Receive described handover trigger information from serving BS;
Under sleep pattern, carry out the scanning of adjacent base station; And
If described scanning result is fit to the trigger condition that is provided with in the described trigger message, then trigger the concrete switching associative operation of appointment in the described trigger message.
48., further be included in and enter concrete that changes described handover trigger information during the battery saving mode according to the described method of claim 47.
49. according to the described method of claim 47, wherein said handover trigger information is specified and is allowed to trigger at least one class power saving grade of switching associative operation.
50. according to claim 47 any one described method to the claim 49, wherein said handover trigger information specifies at least one that triggered when scanning result is fit to trigger condition and switches associative operation.
51.,, specify described at least one switching associative operation independently wherein for the battery saving mode of each grade according to the described method of claim 50.
52. according to the described method of claim 51, the described switching associative operation of appointment comprises at least one in scan report, scan request and the handoff request in the wherein said handover trigger information.
53. the mobile radio station according to handover trigger information and executing switching associative operation, described mobile radio station comprises:
Radio communication module, described radio communication module receive described handover trigger information and are used for the signal of the measurement of channel quality; And
Control module, described control module are carried out the scanning of adjacent base station under sleep pattern, and if scanning result be fit to the trigger condition that is provided with in the described trigger message, then trigger the concrete switching associative operation of appointment in the described triggering message.
54. according to the described mobile radio station of claim 53, wherein said control module further is included in and enters concrete the function that changes described handover trigger information during the battery saving mode.
55. according to the described mobile radio station of claim 53, wherein said handover trigger information is specified and is allowed to trigger at least one class power saving grade of switching associative operation.
56. according to claim 53 any one described mobile radio station to the claim 55, wherein said handover trigger information specifies at least one that triggered when scanning result is fit to described trigger condition and switches associative operation.
57.,, specify described at least one switching associative operation independently wherein for the battery saving mode of each grade according to the described mobile radio station of claim 56.
58. according to the described mobile radio station of claim 57, the switching associative operation of appointment comprises at least one in scan report, scan request and the handoff request in the wherein said handover trigger information.
CN2007800257038A 2006-05-13 2007-05-14 Method of performing procedures for initial network entry and handover in a broadband wireless access system Expired - Fee Related CN101543002B (en)

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KR1020060078284A KR101295269B1 (en) 2006-08-18 2006-08-18 Method for performing a network entry in mobile communication system
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