CN102318235A - Method and apparatus for updating system information in broadband wireless communication system - Google Patents
Method and apparatus for updating system information in broadband wireless communication system Download PDFInfo
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- CN102318235A CN102318235A CN2010800072300A CN201080007230A CN102318235A CN 102318235 A CN102318235 A CN 102318235A CN 2010800072300 A CN2010800072300 A CN 2010800072300A CN 201080007230 A CN201080007230 A CN 201080007230A CN 102318235 A CN102318235 A CN 102318235A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W72/121—Wireless traffic scheduling for groups of terminals or users
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Abstract
The present invention relates to a method for updating the system information of a broadband wireless connection system that transmits and receives data through a superframe that includes a primary superframe header (P-SFH) and a secondary superframe header (S-SFH). The method comprises the steps of: encoding an information element (IE) of the P-SFH which contains the scheduling information of the S-SFH and a change counter indicating changes to the system information included in the S-SFH; and transmitting to a terminal the superframe which includes the encoded IE of the P-SFH and the system change information. The change counter included in the superframe is transmitted after increasing the counter value according to changes to the system information. A message for indicating the application of the changed system information is included in a certain frame, then transmitted to the terminal.
Description
Technical field
The disclosure relates to the renewal of the system information in the system of broadband wireless communication, and more specifically, relates to the method and apparatus of the time point of the system information that when the system information of sending through superframe head (SFH) is updated, is used to determine application update.
Background technology
For base station in the system of broadband wireless communication and communication between terminals, the system information crucial for communication must send to the base station from the base station.The base station can be transmitted and the required critical system information of terminal communication through superframe head (SFH), and additionally transmits necessary system information through separate broadcast message.
For the continuous communiction between base station and the terminal; The critical system information of sending via SFH in the system information should regular update, and whether the terminal critical system information of should regular monitoring sending from the base station is updated and implements to the decoding of the system information of upgrading and upgrade operation.
Yet, when system information is constant,, possibly unnecessarily consume the power at terminal if always decode and updating system information in the terminal.Particularly, if even system information is constant, decoding and renewal through the system information of SFH and broadcast message transmission are also carried out in the terminal that is in park mode or idle pulley, are being poor efficiencys aspect the power consumption at terminal then.
And when system information changed, the time point of the system information of when using these variations should be apprised of in the terminal, but still undefined its any detailed method.Even terminal recognition goes out the change of system information or constant, still be difficult to determine use the time point of the system information of these variations.
Summary of the invention
Therefore, for fear of these problems, the one side of detailed description provides a kind of method and apparatus of updating system information, and it can minimize or prevent the execution of unnecessary system information decoding and the power consumption that causes thus, and implements with mode more effectively.
That describes in detail provides a kind of when method and apparatus of the time point of the system information of application change of terminal that is used for more effectively informing on the other hand.
In order to realize these and other advantages; And according to the object of the invention; As concrete with broadly describe; Provide a kind of in system of broadband wireless communication the method for updating system information; This system of broadband wireless communication is transmitting and receive data via the superframe with main superframe head (P-SFH) and auxilliary superframe head (S-SFH), and this method comprises: coding P-SFH information element (IE), this P-SFH information element comprise schedule information relevant with S-SFH and the change count that is used for indicating the variation in the system information that is included in S-SFH; And to terminal transmission superframe; This superframe comprises the P-SFH IE of coding and the system information of variation; Wherein after the variation increase count value in response to system information; Transmission is included in the change count in the superframe, wherein be used for indicating application change when the change information of time point of system information use Indication message and be included in particular superframe and be sent to the terminal.
According to this method, preferably, change information is used Indication message and can be sent via P-SFH, head-SFH or MAP message.
According to this method; Preferably; Change information is used Indication message can be configured to specific count value; And when receiving change information application Indication message, the terminal can compare the change count in change count and the change information application Indication message to judge whether the system information of application change.
According to this method, preferably, change information is used the deviant of time point that Indication message can be disposed for indicating the system information of application change.
According to this method, preferably, deviant can comprise 1 information.When this value is 0; It can be indicated in the superframe that comprises change information application Indication message and use the system information corresponding to change count; And when this value was 1, it can be indicated in the superframe after the superframe that comprises change information application Indication message and use the system information corresponding to change count.
According to another illustrative embodiments; Provide a kind of and be used for via the method for the superframe with main superframe head (P-SFH) and auxilliary superframe head (S-SFH) in the system of broadband wireless communication updating system information that transmits and receive data, this method comprises: coding comprises that S-SFH schedule information, S-SFH change count and S-SFH bag change the P-SFH information element (IE) of bitmap; And the superframe that sends the P-SFH IE comprise coding to the terminal; Wherein after increasing count value, sending change count, wherein be used for indicating the change information of time point of the system information of application change to use Indication message and send to the terminal through being included in particular superframe in response to the variation among the S-SFH IE.
According to this method, preferably, S-SFH bag (SP) changes bitmap can comprise 3 positions of indicating 3 SP variable condition, and when the information element of special stator pack changed, the position of the specific location of S-SFH SP variation bitmap can saltus step.
According to this method, preferably, change information is used Indication message and can be sent via P-SFH, head-SFH or MAP message.
According to this method, preferably, change information is used Indication message can be configured to specific count value.When receiving change information application Indication message, the terminal can compare the change count in change count and the change information application Indication message to judge whether the system information of application change.
According to this method; Preferably; Change information is used Indication message and may be embodied as a plurality of change informations and use Indication messages and be used to use the independent time point of the S-SFH SP IE of a plurality of variations with indication respectively, perhaps is embodied as the message bit pattern by the same number of bit representation of number and many sub-packet.
According to this method, preferably, change information is used the deviant of time point that Indication message can be disposed for indicating the S-SFH IP IE of application change.
According to another illustrative embodiments; Provide a kind of and be used for via the method for the superframe with main superframe head (P-SFH) and auxilliary superframe head (S-SFH) in the system of broadband wireless communication updating system information that transmits and receive data, this method comprises: receive the superframe that comprises P-SFH from the base station; Decoding comprises that S-SFH schedule information bitmap, S-SFH change count and S-SFH change the information element (IE) of the P-SFH of bitmap; Compare through change count and to judge that S-SFH wraps IE and whether changes change count and the reception of storage; And the application of when S-SFH SP IE changes, using Indication message executive system information based on the change information of the time point of S-SFH bag (SP) IE that is used to indicate application change.
According to this method; Preferably; Change information is used the specific count value or the deviant of time point that Indication message can be configured to be used to indicate the SP IE of application change, and change information use Indication message can be via P-SFH, S-SFH or MAP message sink.
In order to realize these and other advantages; According to the object of the invention; Realize and generalized description as this paper is concrete; A kind of equipment that is used in the system of broadband wireless communication updating system information that transmits and receive data via the superframe with main superframe head (P-SFH) and auxilliary superframe head (S-SFH) is provided, and this equipment comprises: encoder is adapted to coding and comprises that S-SFH schedule information bitmap, S-SFH change count and S-SFH change the P-SFH information element (IE) of bitmap; Controller; Be adapted to when S-SFH SP IE changes;, each S-SFH bag (SP) make the S-SFH change count add 1 and change the S-SFH change count when changing; And control the change information application Indication message that sends to the terminal in the particular superframe through being included in, this change information is used the time point of the S-SFHSP IE of Indication message indication application change; And transmitter, be adapted to and send the S-SFH SP that comprises variation, the S-SFH change count of variation and the superframe that change information is used Indication message.
According to an illustrative embodiments; A kind of equipment that is used in the system of broadband wireless communication updating system information that transmits and receive data via the superframe with main superframe head (P-SFH) and auxilliary superframe head (S-SFH) is provided; This equipment comprises: receiver; Be adapted to and receive superframe from the base station, this superframe comprises that the S-SFH bag of the variation in S-SFH change count and the indication mechanism information changes bitmap and when indicates the change information application Indication message of the system information of application change; Memory is adapted to storage S-SFH change count and S-SFH bag and changes bitmap; And controller; The change count that is adapted to through being stored in the memory compares with change count that changes bitmap and reception and variation bitmap; The decoding and the renewal of control S-SFH bag are wherein used Indication message based on the change information that receives and are implemented the renewal operation in response to the variation of system information.
Beneficial effect
According to detailed description, when system information changed, the terminal can be known the time point of the system information of when using these variations effectively and need not independent signal process of transmitting.
And, describe in detail also to provide and be used for the more effectively method and apparatus of updating system information, the unnecessary system information decoding that need not the terminal with thereby the power consumption that causes.
Description of drawings
Fig. 1 shows the structure of upper layer frame;
Fig. 2 shows the structure of FDD (FDD) type frame;
Fig. 3 shows the structure of time division duplex (TDD) type frame;
Fig. 4 is the flow chart that shows the process of the information errors in the P-SFH that receives from the base station according to an illustrative embodiments sense terminals continuously;
Fig. 5 shows and uses P-SFH to send the illustrative embodiments that change information is used Indication message, and this change information is used the Indication message indication will be in the system information of single common application time point application change;
Fig. 6 shows and uses P-SFH to send another illustrative embodiments that change information is used Indication message, and this change information is used the Indication message indication will be in the system information of single common application time point application change;
Fig. 7 illustrates and uses MAP (MAP) to send the illustrative embodiments that change information is used Indication message, and this change information is used the Indication message indication will be in the system information of single common application time point application change;
Fig. 8 shows and sends the illustrative embodiments that the indication change information is used Indication message, and this change information is used the Indication message indication will use each system information at the independent utility time point;
Fig. 9 shows and sends another illustrative embodiments that the indication change information is used Indication message, and this change information is used the Indication message indication will use each system information at the independent utility time point;
Figure 10 shows the illustrative embodiments of sending the application version of the system information that changes via each S-SFH SP;
Figure 11 shows the illustrative embodiments of sending the application skew of the system information that changes via each S-SFH SP;
Figure 12 shows the illustrative embodiments of sending the application message relevant with the system information that changes with bitmap form;
Figure 13 shows a kind of method, and wherein the system information and the application point of time thereof of application change are informed through the re-transmitted of each S-SFH SP in the base station whether;
Figure 14 shows a kind of method, and wherein whether the SP of the re-transmitted of base station through bitmap and the re-transmitted of each S-SFH SP of indication informs the system information and the application point of time thereof of application change;
Figure 15 shows a kind of method, and wherein the application point of time of the system information of variation is implicitly judged at the terminal based on the scheduling bitmap of S-SFH SP;
Figure 16 shows the block diagram according to the illustrative arrangement of the base station of illustrative embodiments implementation system information updating; And
Figure 17 shows the block diagram according to the illustrative arrangement at the terminal of illustrative embodiments implementation system information updating.
Embodiment
Describe execution mode of the present invention below with reference to accompanying drawings in detail, in the accompanying drawings, identical or corresponding those assemblies use identical Reference numeral represent and no matter accompanying drawing number how, and redundant explanation will be omitted.In describing the present invention, be considered to unnecessarily to have shifted main idea of the present invention if be used for the illustrated in detail of relevant known function or structure, then this explanation will be omitted, but should be understood by those skilled in the art.Accompanying drawing is used for helping easily to understand technological thought of the present invention, and is to be understood that thought of the present invention is not limited by accompanying drawing.Thought of the present invention should be understood to any change, the equivalence that expands to except that accompanying drawing and substitutes.
The communication system that this paper uses is to be used to provide such as the system of various communication services such as speech data, grouped data and to comprise the base station and the terminal.
The term " terminal " that this paper uses can use such as subscriber station (SS), subscriber equipment (UE), mobile device (ME), mobile radio station (MS) and wait other terms to replace.And the terminal can be the mancarried device type that has communication function such as portable phone, PDA, smart phone, notebook etc., perhaps such as non-mancarried devices such as PC, car-mounted devices.
Term " base station " expression that this paper uses and the fixed position of terminal communication, and can use such as base station (BS), differentiation Node-B (eNB), reference transceiver system (BTS), access point (AP) and wait other terms to replace.In a base station, can there be one or more sub-districts, and can between the base station, be used for the coffret of customer flow and control flow.And down link is represented the communication channel from the base station to the terminal, and up link is represented the communication channel from terminal to base station.
The multiple access plan that is applied to wireless communication system can comprise code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), OFDM (OFDMA) or other known modulation schemes.
And the multiple access that is used for downlink transmission and ul transmissions can be different.For example, downlink transmission can adopt the OFDMA scheme, and ul transmissions can adopt the SC-FDMA scheme.
After this, describe execution mode of the present invention below with reference to accompanying drawings in detail, in the accompanying drawing, identical or corresponding those assemblies use identical Reference numeral represent and no matter accompanying drawing number how, and redundant explanation will be omitted.
Fig. 1 shows the structure of upper layer frame.
As shown in Figure 1, be applied to frame that the frame structure according to the system of this specification can comprise 5ms as basic element, and frame can and can be defined as the interval between leading (preamble) corresponding to basic single unit of transfer.Frame comprises a sub-frame at least, and can comprise a plurality of Transmission Time Intervals (TTI), and each TTI has different sizes.TTI is the base unit in the scheduling of medium access control (MAC) layer execution.TTI can be a radio resources allocation unit.
And superframe disposes a plurality of frames.Superframe can for example be the unit configuration with 20ms.When the configuration superframe, system configuration information is set to unit of transfer with the broadcast message that is used for initial fast cell selecting and low reaction Time Service, and usually, 2 to 6 frames form single superframe.In addition, be that each frame of unit comprises a plurality of subframes with 5ms, and each subframe comprise a plurality of OFDM/OFDMA symbols.Each superframe comprises single superframe head (SFH), and this superframe head comprises broadcast channel, and SFH is positioned at the first subframe place of respective superframe.
Basic frame structure can be according to designs such as the width of system channel, duplex mode, Cyclic Prefix (CP) length.
Fig. 2 illustrates the structure of FDD (FDD) type frame.
In fdd mode, on frequency domain, distinguish down link and ul transmissions, and each subframe of each frame can be used for down link and ul transmissions.Uplink sub-frames can be visited in terminal in the fdd mode, and receives data pulse via any downlink subframe simultaneously.
As shown in Figure 2, the superframe of 20ms comprise 5ms length 4 frames (F0, F1, F2, F3), and frame F2 comprise the length with 0.617ms 8 sub-frame (SF0, SF1, SF2, SF3, SF4, SF5, SF6, SF7) with free time of 62.86 μ s at interval.Each subframe can comprise 7 OFDM symbols (S0, S1, S2, S3, S4, S5 and S6).
Fig. 3 shows the structure of time division duplex (TDD) type frame.
In tdd mode, distinguish down link and ul transmissions in time domain, and uplink transmission time distributes the time interval after in downlink transmission at interval, feasiblely transmit and receive data via down link and up link.
As shown in Figure 3, the superframe of 20ms comprise 4 frames of 5ms (F0, F1, F2, F3), and frame F2 comprise the length with 0.617ms 8 sub-frame (SF0, SF1, SF2, SF3, SF4, SF5, SF6, SF7) with free time of 62.86 μ s at interval.Frame F2 comprises according to the ratio of down link (DL) and up link (UL) (D: the descending chain circuit frame of the D number of U) judging and the uplink of U number.When the ratio of DL and UL is 5: 3, and 5 sub-frame (SF0, SF1, SF2, SF3, (SF5, SF6 SF7) are configured to uplink SF4) to be configured to descending chain circuit frame and 3 sub-frame.Idle characters that are used to distinguish DL and UL are inserted between last descending chain circuit frame SF4 and first uplink SF5 with the switching of indication from DL to UL.The space of inserting between down link and the up link is called as sends transition space (TTG); And the space of between up link and down link, inserting is called as reception transition space (RTG), and transmitting terminal and receiving terminal can take this to distinguish downlink transmission and ul transmissions.
And last downlink subframe SF4 comprises 5 OFDM symbols and last idle characters S5.Idle characters S5 is as the TTG that distinguishes down link (DL) and up link (UL).
Superframe head (SFH) will be described now.
In BWA, SFH is used for the system information of the key of the communication between terminal and the base station to terminal transmission.As shown in Figure 1, SFH is positioned at the first subframe place of single superframe.SFH can comprise the main SFH (P-SFH) that sends the control information that is used to receive SFH and send the auxilliary SFH (S-SFH) of the critical system information such as Web portal.
According to the type of system information or the transmission frequency of system information, S-SFH can comprise many sub-packet (SP), and preferably, S-SFH comprises 3 SP (SP1, SP2 and SP3).
P-SFH sends during each superframe, and comprises 4 LSB information and the information relevant with S-SFH of Hyper Frame Number (SFN).The information relevant with S-SFH comprise the transformat of " S-SFH change count ", whether indication sends S-SFH in corresponding superframe " the S-SFH schedule information bitmap " of the version of the S-SFH that indicates current transmission, " the S-SFH size " that be designated as the number of the LRU that the S-SFH transmission distributes, indication S-SFH " S-SFH repeat number ", indicate which kind of S-SFH SP reformed " S-SFH SP changes bitmap " etc." S-SFH schedule information bitmap " and " S-SFH SP changes bitmap " size of field equals the sum of the SP of S-SFH.
S-SFH sends actual system information, and as stated, the system information of sending can be included in 3 sub-packet according to its characteristic, and each son encapsulates and is called S-SPH SPn (n=1,2,3).Each S-SFH SP information element (IE) has different transmission cycles.When the transmission cycle of SP1 is T
SP1, SP2 transmission cycle be T
SP2And the transmission cycle of SP3 is T
SP3The time, the transmission cycle of son bag for example can pass through T
SP1＜T
SP2＜T
SP3Expression.
For with the continuous communiction of base station, the system information of sending via S-SFH should be upgraded in the terminal.Yet, when system information is constant,, possibly be poor efficiency aspect the power consumption at terminal if S-SFH is decoded and renewal.Decoding and the renewal of S-SFH can be carried out in terminal in this specification when the system information of sending via S-SFH changes.
And the terminal should carried out from the information errors of renewal detection before from the P-SFH that the base station receives of the system information of base station transmits.
Fig. 4 is the flow chart that order shows the process of the information errors in the P-SFH that receives from the base station according to an illustrative embodiments sense terminals.
P-SFH can comprise " 4 LSB Hyper Frame Number ", " S-SFH change count (after this being called " CC ") ", " S-SFH schedule information bitmap ", " S-SFH size ", " S-SFH repeat number ", " S-SFH SP changes bitmap (after this being called " CB ") " and be used for the Cyclic Redundancy Check of wrong detection.
Usually, in order to check in the information in the P-SFH that sends via air interface whether have mistake, the terminal is based on the data computation crc value that receives.The terminal judges in the information in the P-SFH whether have mistake according to the crc value that calculates then.
This specification has proposed both to make judges that in through the general P-SFH error checking process of CRC 4 LSB SFN fields that do not have also additionally to use under the wrong situation in the P-SFH judge whether the process that makes a mistake.
At first, the P-SFH (S401) of decoding terminals reception.
The terminal mainly judges whether occur mistake (S403) in the information in the P-SFH through the crc value that decoding is included among the P-SFH.
Have mistake if the terminal produces the judged result judgement according to the mistake through crc check in respective superframe, then superframe is treated to mistake (S417).If judge any mistake not occur, then the terminal successfully receives critical system information and calculates Hyper Frame Number (SFN) through initial network registration (inlet) process (DL is synchronous).
Therefore, the terminal compares the Hyper Frame Number (SFN) in the P-SFH of base station transmission to judge whether corresponding P-SFH is correctly sent (S405) error-free with the SFN that itself calculates.
If in the information of terminal judges in P-SFH mistake has taken place, then the terminal can be treated to corresponding superframe and have mistake and therefore do not take any further action (S417).
If judgement is identical with the SFN that the terminal calculates from the SFN in the P-SFH of base station transmission, then the terminal judges respective superframe does not have mistake (S407).
When in respective superframe, sending S-SFH, CRC can be calculated to S-SFH in the terminal.If judging in the information in S-SFH does not have mistake, then relevant terminal is taked normal action to corresponding superframe.
After this, will provide the method that the system information change message of sending via P-SFH is upgraded critical system information from the visual angle at terminal.
Fig. 5 shows the method for time point of informing the system information of application change via P-SFH.
S-SFH change count (CC) and S-SFH SP about sending via P-SFH change bitmap (CB), and as shown in Figure 5, CC can be a unit change with S-SFH SP by the base station.
In Fig. 5, CC indicates change count, and whether this change count indication changes via the critical system information that S-SFH sends, and SI indication S-SFH schedule information bitmap,, sends to the S-SFH SP at terminal after in respective superframe, being scheduled that is.And CB indication S-SFH changes bitmap,, in respective superframe, has the SP of the system information of variation that is.
With reference to Fig. 5, send via the P-SFH in the superframe if suppose CC, SI and the CB information of S-SFH, and in first superframe, be scheduled and constant S-SFH SP1 and the S-SFH SP2 of transmitting system information; Current hypothesis is in the P-SFH of first superframe; CC equals 25, and it is SP1 and SP2 with indication S-SFH SP that the SI bitmap is set to " 110 ", and the same with the CB of front; CB is maintained " 000 ", because the current S-SFH SP that does not have variation.
In Fig. 5, change because belong to the system information of S-SFH SP IE, in the superframe of the S-SFH SP IE that at first sends respective change, the S-SFH change count increases (increasing progressively).That is, in second superframe of the time point of SP1 that at first send to change and SP2, produce the counting increase of from 25 to 27 CC.Here, be that unit carries out the counter increase with SP.Therefore, two SP change, so increase by two countings.Therefore, CC becomes 27.
Therefore; In second superframe, be increased under 27 the situation in that CC is current, these system informations can be sent via P-SFH; The S-SFH SP that the SI bitmap is set to " 110 " dispatch in second superframe with indication is SP1 and SP2; And CB is set to " 110 ", that is, the position information saltus step of first and second positions of CB changes with indication SP1 and SP2.Yet, according to the modification of this specification, CB can be set to through place value corresponding to S-SFH SP 1 and other place value be set to 0 and indicate the SP that changes.In this case, can be set to " 110 " afterwards in place value, that is, make the position information saltus step of first and second positions be 1 change with indication SP1 and SP2 after, transmission CB.
And, in system information, there is not to change and in the 3rd superframe, only dispatch SP1.Therefore, among the P-SFH during the 3rd superframe, CC is maintained 27, and the S-SFH SP that the SI bitmap is set to " 100 " dispatch with indication is SP1, and CB is maintained " 110 ".
Simultaneously, the base station must inform that not only the system information of terminal current application has changed but also must inform the when decision of the system information of application change of terminal.For example; Be used to indicate the change information of a common application time point or application version to use Indication message through use; Or through using the independent a plurality of change informations of the application point of time of the S-SFH SP IE that is used for a plurality of variations of indicating to use Indication messages, the base station can be informed the time point of the system information of terminal applies current application through Several Methods.
When informing the application point of time of the system information that is used to change through the change information application Indication message of indicating a common application time point or application version, the base station can be through informing the Hyper Frame Number or the deviant of indicating the application-specific time point or count (ACC) information notification terminal through the application change of using the indication application version that it must carry out the time point of renewal.
And change information is used Indication message can send to the terminal via P-SFH, S-SFH or MAP message.
The ACC that illustrative embodiments shown in Fig. 5 shows the application version of indicating the system information that changes sends to the terminal via P-SFH, and making can be a system information of putting application change common time.
Sent the S-SFH SP1 and SP2 that changes via second superframe after, ACC can be sent with S-SFH SP1 and SP2 from the 3rd superframe application change in that ACC become from 25 in the base station after 27.
After S-SFH SP1 that receive to change and SP2, the terminal can be discerned will be from the system information of the 3rd superframe application change, identical with CC in the 3rd superframe, after ACC changes to 27, sends ACC, and the application of executive system information then.
Here, can be at identical time point to these S-SFH SP application system information change operations with identical version.
Fig. 6 illustrates via P-SFH and sends another illustrative embodiments that change information is used Indication message, and this change information is used the Indication message indication will be in the system information of single common application time point application change.
The illustrative embodiments of Fig. 6 is identical with the illustrative embodiments of Fig. 5, and only CC counting is unit but not the SP shown in Fig. 5 is a unit increases with the superframe.That is, CC is increased to 26 from 25 in second superframe of the time point of SP1 that at first send to change and SP2.
Therefore, be similar to CC, the ACC of the application version of the system information that indication changes is that the unit increases with superframe rather than SP.Sent the S-SFH SP1 and SP2 that changes via second superframe after, for S-SFH SP1 and the SP2 from the 3rd superframe application change, the base station can be changed to 26 to be used for transmission from 25 with ACC.
After having received the S-SFH SP1 and SP2 that changes, the terminal can be identified the system information from the 3rd superframe application change, and in the 3rd superframe, identical with CC, ACC is sent out after changing to 27, and the application of executive system information then.
Fig. 7 shows through being included in and sends the illustrative embodiments that change information is used Indication message in the MAP (MAP), and this change information is used the Indication message indication will be in the system information of single common application time point application change.
After the S-SFH SP1 that send to change via second superframe and SP2, identical with CC for S-SFH SP1 and the SP2 from the 3rd superframe application change, the base station can change to 26 from 25 with ACC, and via the MAP transmission it.
Preferably, can confirm to be used to send the SP of corresponding MAP in advance here.That is, for example, can be confirmed as in advance in first subframe or each subframe and sent MAP.
During second superframe, receive after the S-SFH SP1 and SP2 changed; Terminal recognition will be used and the S-SFH SP1 system information relevant with SP2 that has changed from the 3rd superframe; Identical with CC in the 3rd superframe, 26 ACC is sent out and the application of executive system information.
The CC counting is shown the illustrative embodiments of Fig. 7 typically and the ACC counting is that the unit increases with the superframe.Yet, being similar to the illustrative embodiments of Fig. 5, the illustrative embodiments of Fig. 7 may be embodied as and makes that CC counting and ACC counting are the unit increase with SP.After this, for task of explanation, it is unit change with SP or superframe that CC is shown, but should be appreciated that these two kinds of methods all can be applicable to the disclosure.
Fig. 8 shows and sends the illustrative embodiments that change information is used Indication message, this change information use Indication message indication will be respectively in the system information of independent utility time point application change.
Send the S-SFH SP1 and SP2 changed via second superframe after, for from the 3rd superframe application change S-SFH SP1 and SP2, ACC1 is being changed to after 26 from 25, ACC1 is sent to the terminal in the base station.
During second superframe, receive after the S-SFH SP1 and SP2 changed; Terminal recognition goes out using and the relevant system information of S-SFH SP1 that changes from the 3rd superframe; Identical with CC in the 3rd superframe, ACC1 is sent out after being increased to 26, and the application of executive system information then.
On the other hand, because ACC2 still has 25 value in the 3rd superframe, the terminal can be known still the S-SFH SP2 of application change not and thereby not carry out to the system information of the SP2 that changes and upgrade.After this, when reception became 26 ACC2, the terminal can be carried out the system information that is used for SP2 and upgraded.
Fig. 9 shows and sends another illustrative embodiments that change information is used Indication message, this change information use Indication message indication will be respectively in the system information of independent utility time point application change.
With CC is that the illustrative embodiments of Fig. 8 of increasing of unit is different with the superframe, and it is that unit increases with SP that the illustrative embodiments of Fig. 9 shows CC.Therefore, the ACC counting also can be that unit increases with SP.
S-SFH SP1 and SP2 that the base station send to change via second superframe, thus and also send increase by 2 and be increased to 27 CC in response to the variation of SP1 and SP2.
And for the S-SFH SP1 from the 3rd superframe application change, the base station is changed to 27 with ACC1 from 25, thereby sends to the terminal.
During second superframe, receive after S-SFH SP1 and the SP2; Terminal recognition goes out using and the relevant system information of S-SFH SP1 that changes from the 3rd superframe; Identical with CC in the 3rd superframe, ACC1 is sent out after being increased to 27, and the application of executive system information then.
On the other hand, because ACC2 still has 25 value in the 3rd superframe, the terminal can be known still the S-SFH SP2 of application change not and thereby not carry out to the system information of the SP2 that changes and upgrade.After this, when receiving when being changed to 27 ACC2, the terminal can be carried out the system information that is used for SP2 and upgraded.
Figure 10 shows the illustrative embodiments of sending the application version of the system information that changes via each S-SFH SP.
Shown in figure 10, the ACC of the application version of the SP that indication changes can send through being included among each S-SFH SP rather than the P-SFH.
The base station is through comprising that ACC is via second superframe transmission ACC in the S-SFH SP1 that changes and among the SP2 each.
After S-SFH SP1 that receives variation and SP2, terminal recognition goes out the relevant system information of S-SFH SP1 of in second superframe, not using and changing, because the ACC that sends via S-SFH SP1 is 25.
Yet because the ACC that sends via S-SFH SP2 is 27, terminal recognition goes out in second superframe, to use and the relevant system information of S-SFH SP2 that changes, and the application of executive system information then.
After this, because the ACC that sends via S-SFH SP1 is increased to 27 in the 3rd superframe, terminal recognition is used the system information relevant with S-SFH SP1 in the 3rd superframe, and the application of executive system information then.
Figure 11 shows the illustrative embodiments of sending the application skew of the system information that changes via each S-SFH SP.
Shown in figure 11, change information is used Indication message and can be replaced by the skew of the time point of the S-SFH SP IE of indication application change.
S-SFH SP1 and the SP2 that changes sent in the base station via second superframe.
Here, each S-SFH SP comprises the offset information (that is, using superframe skew (ASO)) of the system information of indicating application change.
After S-SFH SP1 that receives variation and SP2, because the ASO that is included in each among S-SFH SP1 and the SP2 is 1, terminal recognition goes out from use the S-SFH SP1 system information relevant with SP2 with variation as the 3rd superframe of frame subsequently.
Here, when ASO uses 1 configuration, if the ASO value is " 0b0 ", it can indicate will be in the superframe of current reception the system information of application change, and if be " 0b1 ", it can indicate the system information of application change in superframe subsequently.
Following table 1 illustrates 2 S-SFH ASO according to another illustrative embodiments configuration.
| ?SFH?ASO | Describe |
| ?00 | In current superframe, use corresponding S-SFH SP. |
| 01 | From the corresponding S-SFH SP. of superframe (frame number+1) application subsequently |
| 10 | Use corresponding S-SFH SP from |
| 11 | Use corresponding S-SFH SP from |
As shown in table 1, the ASO value in the specific S-SFP SP that during the 3rd superframe, sends is 0b10, can use corresponding S-SFH SP from the 5th superframe (3+2).
Here; Because ASO sends to the terminal via P-SFH, ASO can indicate in the system information of some common time (under the situation that only comprises an ASO) application change or at each S-SFH SP of independent time point application (comprising under the situation with the total as many ASO of S-SFH SP).
Figure 12 shows the illustrative embodiments of sending the application message relevant with the system information that changes with bitmap form.
Shown in figure 12, the base station can be sent change information via P-SFH with bitmap form and used Indication message, thereby informs a common application time point or the application version of the S-SFH SP that is used for current application or inform whether use each S-SFH SP.
The application Indication message of bitmap form can send via MAP or each S-SFH SP, and each S-SFH SP can use in different time points, and it also is the same both having made these S-SFH SP have identical version.
Send the S-SFH SP1 and SP2 changed via second superframe after; For the S-SFH SP1 from the 3rd superframe application change, the base station is sent ACC and after will being set to 1 corresponding to first of the application change bitmap (ACB) of S-SFHSP1, is sent application change bitmap (ACB) in that ACC is changed to from 25 after 27.
Therefore, because S-SFH SP3 is constant, former state is used the information of front.
During second superframe, receive after the S-SFH SP1 and SP2 of variation; Terminal recognition goes out using and the relevant system information of S-SFH SP1 that changes from the 3rd superframe; Identical with CC in the 3rd superframe; ACC is 27, and is set to 1 corresponding to the place value of the ACB of S-SFH SP1, and the application of executive system information then.
On the other hand, because be set to 1 corresponding to the place value of the ACB of S-SFH SP2, the terminal can be identified and still not use the system information relevant with S-SFH SP2.Here, ACC can be preferably constant, up to having used and the relevant system information of S-SFH SP2 that changes.That is, the base station can not change ACC, up to having used all the S-SFH SP with identical version.
Figure 13 shows a kind of method, and wherein system information or its application point of time of application change are informed through the re-transmitted of each S-SFH SP in the base station whether.
Identical S-SFH SP can be repeated to send in a continuous manner under the situation of considering the sub-district covering, to strengthen the possibility of the terminal receiving system information that is positioned at cell edge in the base station.
In Figure 13, S-SFH SP1 sends (301,302 and 303) 3 times with being repeated, and S-SFH SP2 sends (311,312) 2 times with being repeated.
The S-SFH SP1 (301) and the SP2 (302) that more possibly normally decode and in first superframe, send with the base station neighboring terminals.Yet, the system information that changes of normal decoder just after the S-SFH SP1 302 that more possibly only in being received in second superframe, send away from the terminal of base station and the SP2 312.
Here; The base station can with the total as many bitmap form presentation information of sum or the S-SFH SP1 of the S-SFH SP that in respective superframe, sends, the system information that this information indication is sent is the system information that the system signal that sends at first or repeat at last sends.
For example, if in particular superframe, send S-SFH SP1 and SP2, then can distribute to S-SFH SP1 and second and can distribute to S-SFH SP2 for first.
Figure 14 shows a kind of method, and wherein whether the re-transmitted of re-transmitted bitmap and the SP of base station through indicating each S-SFH SP informs system information or its application point of time of application change.
In Figure 14, S-SFH SP1 (401) and the SP2 (402) changed sent in the base station via second superframe.Suppose that S-SFH SP1 repeatedly sends (401,402) 2 times via the second surpassing with the 3rd superframe frame, and S-SFH SP2 sends once (412) via second superframe.
Therefore, because the at first transmission of S-SFH SP1 quilt, thereby in second superframe, first that repeats indication (LRI) at last is set to " 0 ", and because S-SFH SP2 is also to be for the first time to repeat transmission at last, its second is set to " 1 ".
Sent (402) because the S-SFH SP1 that changes repeats in the 3rd superframe at last, LRI is sent through being set to " 1 " with its first in the base station.
After the S-SFH SP1 and SP2 of counting that receives the variation that has increased via second superframe and variation, terminal recognition go out with the position from LRI be set to 1 superframe or subsequently superframe use corresponding S-SFH SP.That is, use S-SFH SP1, and use S-SFH SP2 from the second or the 3rd superframe from the 3rd or the 4th superframe.
According to a kind of modification, repeat indication (FRI) at first for what be different from LRI, if change count difference and FRI are set to 1, the S-SFH SP that uses previous versions can be judged in the terminal.Here, at first and last re-transmitted, the terminal must it be set to last re-transmitted.
Figure 15 shows a kind of method, and wherein the time point of the system information of application change is impliedly judged in the base station based on the scheduling bitmap of S-SFH SP.
Hint type method shown in the illustrative embodiments of Figure 15 indication base station is not sent the information relevant with the system information of current application separately, and the terminal is dispatched bitmap through S-SFH SP and whether impliedly discerned the system information and the application point of time thereof of application change.
Be similar to the execution mode of describing among Figure 13 and Figure 14, the base station can repeatedly be sent identical S-SFH SP in a continuous manner and covered to be used for the sub-district.
The terminal can be discerned the S-SFH SP that is changed to the position of " 0 " from " 1 " corresponding to S-SFH SP schedule information (SI) in continuous superframe and last superframe, repeat the S-SFH SP that sends at last.
S-SFH SP1 and the SP2 changed can be sent via second superframe in the base station.S-SFH SP2 sends once (1511) via second superframe and S-SFH SP1 repeatedly sends (1501,1502) 2 times via the second and the 3rd superframe.
After S-SFH SP1 that receives variation and SP2; The place value that the terminal can be identified corresponding to the SI of S-SFH SP2 then is set to " 1 " and in the 3rd superframe, is changed to " 0 " in second superframe, and also is identified in the S-SFH SP2 that sends in second superframe and repeats the S-SFH SP that sends at last.
Therefore, can be from the S-SFH SP2 of the second or the 3rd superframe application change.
Figure 16 is the block diagram that schematically shows according to the configuration of the base station of illustrative embodiments executive system information updating.
The base station can comprise receiver 1601, transmitter 1603, encoder 1605 and controller 1609.
Encoder 1605 can be encoded and comprised that S-SFH schedule information bitmap, S-SFH change count and S-SFH bag change the P-SFH IE of bitmap.
When S-SFH bag IE changed, controller 1609 can add 1 with the S-SFH change count and change the S-SFH change count when each S-SFH bag changes, and changed S-SFH bag and change bitmap, made the position saltus step of the ad-hoc location that changes corresponding to special stator pack.And the change information application Indication message that controller 1609 can be controlled the time point of the S-SFH bag IE that will indicate application change sends to the terminal through being included in the particular superframe.
Figure 17 is the block diagram that has schematically shown according to the configuration at the terminal of illustrative embodiments executive system information updating.
The terminal can comprise transmitter 1701, receiver 1703, decoder 1705, memory 1707 and controller 1709.
Except said modules; Basically comprise according to the equipment of this specification and to be used to implement the required software and hardware of technical scope of the present disclosure; For example, output unit (display, loud speaker etc.), input unit (keypad; Microphone etc.), memory and transmission/receiving element (RF module, antenna etc.).These basic modules are obvious to those skilled in the art, so its detailed description will be omitted.
Described so farly can implement through hardware or software or its combination in any according to method of the present disclosure.For example, can be stored in the storage medium (for example, the storage inside of portable terminal, flash memory, hard disk etc.) according to method of the present disclosure.Alternatively, may be embodied as code or command statement in the software program that can be processed device (for example, the microprocessor in the portable terminal) execution according to method of the present disclosure.
Reference is that exemplary execution mode has been explained the present invention only.To those skilled in the art clearly, under the condition that does not depart from the spirit or scope of the present invention, other execution modes that can make various modifications and be equal to the present invention.And, it is also understood that can be through optionally completely or partially making up above-mentioned (a plurality of) execution mode embodiment of the present invention.Thereby, be intended to the present invention and contain modification of the present invention and modification in the scope that falls into accompanying claims and equivalent thereof.
Claims (15)
1. method that is used in the system of broadband wireless communication updating system information, said system of broadband wireless communication is via superframe (superframe) transceive data that comprises main superframe head and auxilliary superframe head, and said method comprises:
The main superframe header element (IE) of encoding, said main superframe header element comprise that auxilliary superframe head scheduling (scheduling) information and indication are included in the change count (change count) of the variation of the system information in the said auxilliary superframe head; And
Send superframe to said terminal, said superframe comprises through the main superframe header element of coding and the system information of variation,
The value of wherein said change count increases according to the variation of said system information,
Wherein send change information via predetermined superframe to said terminal and use Indication message, said change information is used the time point of the system information of Indication message indication application change.
2. method according to claim 1, wherein said change information is used Indication message and is sent via said main superframe head, said auxilliary superframe head or MAP (MAP) message.
3. method according to claim 1, wherein said change information are used Indication message and are comprised predetermined count value (Count),
Wherein receive said change information when using Indication message when said terminal, said terminal with said change count be included in the said change count that said change information uses in the Indication message and compare to judge whether the system information of application change.
4. method according to claim 1, wherein said change information are used Indication message and are comprised deviant (offset), the time point of the system information of said deviant indication application change.
5. method according to claim 4, wherein said deviant comprise 1 (bit) information,
Wherein when this value was 0, its indication was used the system information corresponding to said change count in the superframe that comprises said change information application Indication message,
Wherein when this value is 1, use system information in the superframe of its indication after the superframe that comprises said change information application Indication message corresponding to said change count.
6. method that is used in the system of broadband wireless communication updating system information, said system of broadband wireless communication is via superframe (superframe) transceive data that comprises main superframe head (P-SFH) and auxilliary superframe head (S-SFH), and said method comprises:
The main superframe header element (IE) of encoding, said main superframe header element comprise auxilliary superframe head schedule information, auxilliary superframe head change count (change count) and auxilliary superframe chieftain bag (subpacket) variation bitmap (changebitmap); And
Send the superframe of the main superframe header element that comprises coding to said terminal,
The value of wherein said change count increases according to auxilliary superframe header change of elements,
Wherein send change information via predetermined superframe to said terminal and use Indication message, said change information is used the time point of the system information of Indication message indication application change.
7. method according to claim 6, wherein said auxilliary superframe chieftain bag (SP) change bitmap and comprise 3 positions of indicating 3 sub-packet variable condition,
Wherein when the information element of special stator pack changed, auxilliary superframe chieftain wrapped the position saltus step of the specific location that changes bitmap.
8. method according to claim 6, wherein said change information is used Indication message and is sent via said main superframe head, said auxilliary superframe head or MAP (MAP) message.
9. method according to claim 6, wherein said change information are used Indication message and are comprised predetermined count value (Count),
Wherein receive said change information when using Indication message when said terminal, said terminal with said change count be included in the change count that said change information uses in the Indication message and compare to judge whether the system information of application change.
10. method according to claim 6; Wherein said change information is used Indication message and is comprised in order to a plurality of change informations application Indication messages of the independent time point of indicating the auxilliary superframe chieftain package informatin element of using a plurality of variations respectively, perhaps comprises bitmap (bitmap) information by the same number of position (bit) expression of number and many sub-packet.
11. method according to claim 6, wherein said change information are used Indication message and are comprised deviant, the time point of the auxilliary superframe chieftain package informatin element of said deviant indication application change.
12. a method that is used in the system of broadband wireless communication updating system information, said system of broadband wireless communication is via superframe (superframe) transceive data that comprises main superframe head (P-SFH) and auxilliary superframe head (S-SFH), and said method comprises:
Receive the superframe that comprises main superframe head from the base station;
The main superframe header element (IE) of decoding, the information element of said main superframe head (IE) comprise auxilliary superframe head schedule information bitmap, auxilliary superframe head change count (change count) and auxilliary superframe head variation bitmap (change bitmap);
Compare through change count and to judge whether said auxilliary superframe chieftain package informatin element changes change count and the reception of storage; And
When said auxilliary superframe chieftain package informatin element variation, use the operation that Indication message is carried out application system information based on change information,
Wherein said change information is used the time point of the auxilliary superframe chieftain package informatin element of Indication message indication application change.
13. method according to claim 12, wherein said change information is used predetermined count value (Count) or the deviant (offset) that Indication message comprises the time point of the sub-package informatin element of indicating application change,
Wherein said change information is used Indication message via said main superframe head, said auxilliary superframe head or MAP (MAP) message sink.
14. an equipment that is used in the system of broadband wireless communication updating system information, said system of broadband wireless communication is via superframe (superframe) transceive data that comprises main superframe head (P-SFH) and auxilliary superframe head (S-SFH), and said equipment comprises:
Encoder, the said encoder main superframe header element (IE) that is configured to encode, said main superframe header element (IE) comprise that auxilliary superframe head schedule information bitmap, auxilliary superframe head change count and auxilliary superframe head change bitmap;
Controller; Said controller is configured when auxilliary superframe chieftain package informatin element variation; Said auxilliary superframe head change count is wrapped each auxilliary superframe chieftain add 1 and change said auxilliary superframe head change count when changing; And control via predetermined superframe and send change information application Indication message to said terminal
Wherein said change information is used the time point of the auxilliary superframe chieftain package informatin element of Indication message indication application change; And
Transmitter, said transmitter are configured to send the superframe that comprises the auxilliary superframe chieftain bag of variation, the auxilliary superframe head change count that changes and change information application Indication message.
15. an equipment that is used in the system of broadband wireless communication updating system information, said system of broadband wireless communication is via superframe (superframe) transceive data that comprises main superframe head (P-SFH) and auxilliary superframe head (S-SFH), and said equipment comprises:
Receiver, said receiver are configured to the reception superframe from the base station,
Wherein said superframe comprises that the auxilliary superframe chieftain of auxilliary superframe head change count and indication mechanism change in information wraps the change information application Indication message of the time point of the system information that changes bitmap and indication application change;
Memory, said memory are configured to store auxilliary superframe head change count and auxilliary superframe chieftain wraps the variation bitmap; And
Controller, said controller are configured to compare with change count that changes bitmap and reception and variation bitmap through the change count that will be stored in the said memory, control the decoding and the renewal of auxilliary superframe chieftain bag,
Wherein use Indication message and carry out renewal operation in response to the variation of said system information based on the change information that receives.
Applications Claiming Priority (7)
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| US15185009P | 2009-02-12 | 2009-02-12 | |
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| US61/258,216 | 2009-11-05 | ||
| KR10-2010-0012916 | 2010-02-11 | ||
| KR1020100012916A KR101680660B1 (en) | 2009-02-12 | 2010-02-11 | Method and apparatus of updating for system information in a broadband wireless communication system |
| PCT/KR2010/000918 WO2010093206A2 (en) | 2009-02-12 | 2010-02-12 | Method and apparatus for updating system information in broadband wireless communication system |
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| CN102318235A true CN102318235A (en) | 2012-01-11 |
| CN102318235B CN102318235B (en) | 2015-01-07 |
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| CN201080007230.0A Expired - Fee Related CN102318235B (en) | 2009-02-12 | 2010-02-12 | Method and apparatus for updating system information in broadband wireless communication system |
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| KR (1) | KR101680660B1 (en) |
| CN (1) | CN102318235B (en) |
| WO (1) | WO2010093206A2 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2010093206A2 (en) | 2010-08-19 |
| KR101680660B1 (en) | 2016-11-29 |
| CN102318235B (en) | 2015-01-07 |
| WO2010093206A3 (en) | 2010-11-25 |
| KR20100092393A (en) | 2010-08-20 |
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