CN102342152A

CN102342152A - Method and apparatus for updating system information in broadband wireless communication system

Info

Publication number: CN102342152A
Application number: CN2010800100917A
Authority: CN
Inventors: 赵嬉静; 柳麒善; 成斗铉; 金龙浩; 陆昤洙
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2009-03-05
Filing date: 2010-03-05
Publication date: 2012-02-01
Anticipated expiration: 2030-03-05
Also published as: KR20100100675A; JP2012518944A; KR101604874B1; JP5269212B2; CN102342152B

Abstract

A method and an apparatus for updating system information in a broadband wireless communication system via superframe sending and receiving data are provided. The method comprises the steps of receiving information from a basestation from a superframe including a P-SFH (Primary Super Frame Header) and a S-SFH( Secondary Super Frame Header, wherein the information includes control information sent by P-SFH IE (Primary Super Frame Header Information Element) and system information sent by at least one of S-SFH SP IE(Secondary Super Frame Header Sub Packet Information Element) of the P-SFH SP of the P-SFH; decoding the PSFH IE which includes a dispatching information bitmap indicating the S-SFH SP IE sent in the superframe, CC (Change Count) of the S-SFH, and a SP CP (Change Bitmap) indicating the change state of the S-SFH SP IE; comparing the received CC and the CC previously stored; inspecting the S-SFH SP CP, When there is a difference between a received CC value and a stored CC value; decoding and updating SP IE corresponding to S-SFH based on the inspection results.

Description

The method and apparatus of updating system information in system of broadband wireless communication

Technical field

The present invention relates to the renewal of the system information in the system of broadband wireless communication, more particularly, relate to the method and apparatus that is used for upgrading the system information that transmits via superframe head (header).

Background technology

For base station in the system of broadband wireless communication and communication between terminals, communicate necessary system information and must send to the terminal from the base station.This base station can be transmitted and the terminal communicates necessary necessary system information via superframe head (SFH) in the base station, and can transmit additional system information via broadcast.

In the middle of system information; The necessary system information that transmits via SFH must between base station and the terminal continue to communicate by letter with periodically upgrade; And the terminal must check periodically whether the necessary system information that sends from the base station changes, and this system information is carried out decoding and renewal.

But, under the unaltered situation of this system information, if the terminal has then unnecessarily consumed the electric power at terminal always to decoding via the system information of transmission such as SFH and upgrading.Specifically, if the terminal that is in park mode or is in idle pulley can be inefficient aspect the power consumption at terminal then to decoding via the system information of SFH transmission and upgrading.

Thereby, need a kind of more effective system information update method to prevent the power consumption at terminal.

Summary of the invention

Technical problem

Therefore, the purpose of this invention is to provide a kind of through not allowing the terminal that unnecessary system information is decoded updating system information effectively and preventing the method and apparatus of power consumption.

Solution

In order to realize these and other advantage; According to the object of the invention; As practical implementation here and generalized description; Provide a kind of in the terminal that transmits and receive data via superframe the method for updating system information, this method may further comprise the steps: the information and the change information of indicating the variable condition of this system information dispatching cycle that receives system information through superframe head (SFH) transmission, this system information from the base station; And upgrade said system information based on said change information; Wherein, Said SFH comprises main SFH (P-SFH) and auxilliary SFH (S-SFH); Said P-SFH comprises said change information, and said S-SFH comprises that at least one height that comprises said system information divides into groups, and divides into groups to send said dispatching cycle of the information in said sub-transmission packets cycle of indication through said P-SFH or predetermined son; And when said terminal detected the system information through changing of dividing into groups to send through said son and as indicating in the information said dispatching cycle, do not dispatch, said terminal wake-up was said till the system information that changes up to receiving.

In an illustrative embodiments; Said S-SFH comprises three sub-packet that have different transmission cycles separately; Said change information comprises three bitmaps that bit constitutes by the variable condition of indicating said three sub-packet respectively; And when the arbitrary value in said son divides into groups was changed, the bit of the corresponding position in the said bitmap was reversed (toggle) or is set to 1.

In another embodiment, said change information comprises and changes counting, and when the arbitrary value in said son divides into groups was changed, said change count increments 1 was also asked mould to 16.

In another embodiment; Said method also can may further comprise the steps: store said change information; Wherein, Said S-SFH comprises three sub-packet and said change information, and said three sub-packet have different transmission cycles separately, and said change information comprises and changes counting and by three bitmaps that bit constitutes of the variable condition of indicating said three sub-packet respectively; And the step of wherein, upgrading said system information may further comprise the steps: the change counting of received change counting with storage compared; And under situation about there are differences between the change counting that received change is counted and stored, upgrade said system information through changing based on said bitmap.

In another embodiment, said receiving step also receives transmission deviation information, and this transmission deviation information is indicated the distance between the superframe that comprises the said sub superframe that divides into groups and comprise said periodic scheduling information.

In order to realize above purpose; Also provide a kind of in the terminal of sending data through superframe the method for updating system information, this method may further comprise the steps: the information and the change information of indicating the variable condition of this system information dispatching cycle that receives system information through superframe head (SFH) transmission, this system information from the base station; And upgrade said system information based on said change information; Wherein, Said SFH comprises main SFH (P-SFH) and auxilliary SFH (S-SFH); Said P-SFH comprises said change information; Said S-SFH comprises that at least one height that comprises said system information divides into groups, and divides into groups to send said dispatching cycle of the information in said sub-transmission packets cycle of indication through predetermined son, and when said terminal detects the system information through changing of dividing into groups to send through said son and as indicating in the information said dispatching cycle, to dispatch; Said terminal wake-up is till dividing into groups to receive said dispatching cycle of information through said predetermined son, and said terminal uses said dispatching cycle information to upgrade said system information.

In an illustrative embodiments; Said S-SFH comprises three sub-packet that have different transmission cycles separately; Said change information comprises three bitmaps that bit constitutes by the variable condition of indicating said three sub-packet respectively; And when the arbitrary value in said son divides into groups was changed, the bit of the corresponding position in the said bitmap was reversed or is set to 1.

In order to realize above purpose, a kind of equipment of updating system information also is provided, this equipment comprises: receiver, it is used for receiving from the base station change information of system information of sending through superframe head (SFH) and the variable condition of indicating this system information; And controller; It is used for upgrading said system information based on said change information; Wherein, Said SFH comprises main SFH (P-SFH) and auxilliary SFH (S-SFH); Said P-SFH comprises said change information, and said S-SFH comprises that at least one height that comprises said system information divides into groups, and indicates information dispatching cycle in said sub-transmission packets cycle through predetermined son branch group of received; And when said controller detected the system information through changing of dividing into groups to send through said son and as indicating in the information said dispatching cycle, do not dispatch, it is said till the system information that changes up to receiving that said controller is controlled to be awakening mode with system operation modes.

In another embodiment; Said equipment also comprises the memory that is used to store said change information; Wherein, Said S-SFH comprises three sub-packet and said change information; Said three sub-packet have different transmission cycles separately; Said change information comprises and changes counting and by three bitmaps that bit constitutes of the variable condition of indicating said three sub-packet respectively, and said controller will compare by said receiver said change counting that receives and the change counting that is stored in the said memory, and upgrades said system information through change based on said bitmap under the situation about between received change counting and the change counting of being stored, there are differences.

In another embodiment, said receiver receives transmission deviation information, and this transmission deviation information is indicated the distance between the superframe that comprises the said sub superframe that divides into groups and comprise said periodic scheduling information.

Above and other objects of the present invention, characteristic, aspect and advantage will be from below in conjunction with becoming more obvious the accompanying drawing detailed description of the present invention.

Description of drawings

Accompanying drawing is included so that further understanding of the invention to be provided, and is merged in this specification and constitutes the part of this specification, the accompanying drawing illustration execution mode of the present invention, and be used to explain principle of the present invention with specification.

In the accompanying drawings:

Fig. 1 shows the structure of higher level's 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 illustrates the illustration flow chart to the processing that detected by the information errors of terminal from the P-SFH that the base station receives according to an illustrative embodiment of the invention.

Fig. 5 shows the divide into groups method of (SP) change bitmap (CB) information of according to an illustrative embodiment of the invention the change counting (CC) that when system information is changed, changes the S-SFH that transmits via P-SFH and S-SFH.

Fig. 6 sequentially shows the processing according to the updating system information of first illustrative embodiments of the present invention.

Fig. 7 sequentially shows the processing according to the updating system information of second illustrative embodiments of the present invention.

Fig. 8 sequentially shows the processing according to the updating system information of the 3rd illustrative embodiments of the present invention.

Fig. 9 shows the processing according to the renewal S-SFH that is undertaken by the terminal that is in dormancy/idle pulley of an illustrative embodiments of the present invention.

Figure 10 show according to an illustrative embodiment of the invention be the transmission deviation information of sending through P-SFH in 0 o'clock at the cycle allocation index.

Figure 11 show according to an illustrative embodiment of the invention be the transmission deviation information of sending through P-SFH in 1 o'clock at the cycle allocation index.

Figure 12 show according to an illustrative embodiment of the invention be the transmission deviation information of sending through S-SFHSP1 in 0 o'clock at the cycle allocation index.

Figure 13 show according to an illustrative embodiment of the invention be the transmission deviation information of sending through S-SFHSP1 in 1 o'clock at the cycle allocation index.

Figure 14 show according to an illustrative embodiment of the invention be the transmission deviation information of sending through S-SFHSP2 in 0 o'clock at the cycle allocation index.

Figure 15 show according to an illustrative embodiment of the invention be the transmission deviation information of sending through S-SFHSP2 in 1 o'clock at the cycle allocation index.

Figure 16 show according to an illustrative embodiment of the invention be the transmission deviation information of sending through S-SFHSP3 in 0 o'clock at the cycle allocation index.

Figure 17 shows the combination transmission deviation also that S-SFH SP3 sends that passes through according to an illustrative embodiment of the invention.

Figure 18 shows the transmission deviation information through simplifying that S-SFH SP3 sends of passing through according to an illustrative embodiment of the invention.

Figure 19 shows the indicating means of transmission cycle information and the transmission deviation information of S-SFH SP according to an illustrative embodiment of the invention.

Figure 20 shows the update method that detects the S-SFH when the S-SFH SP that changes does not have as limiting in last SP information dispatching cycle, to dispatch at the terminal according to an illustrative embodiment of the invention.

Figure 21 shows the update method that detects the S-SFH when the S-SFH SP that changes does not have as limiting in last SP information dispatching cycle, to dispatch at the terminal according to another embodiment of the present invention.

Figure 22 shows the update method that detects the S-SFH when the S-SFH SP that changes does not have as limiting in last SP information dispatching cycle, to dispatch at the terminal according to another embodiment of the present invention.

Figure 23 shows the update method of the S-SFHSP when SP information dispatching cycle changes according to an illustrative embodiment of the invention.

Figure 24 shows the update method according to the S-SFHSP when SP information dispatching cycle changes of another embodiment of the present invention.

Figure 25 shows the schematic block diagram at terminal of the operation of execution updating system information according to an illustrative embodiment of the invention.

Embodiment

To describe illustrative embodiments of the present invention in detail with reference to accompanying drawing now.With using identical label to indicate identical or similar assembly all the time, and will omit the description of repetition.When description is of the present invention,, then omit this explanation, but those skilled in the art can understand still if be considered to unnecessarily to shift purport of the present invention to the relevant known function or the detailed description of structure.In the drawings, for the sake of clarity, possibly exaggerate shape and size, and identical label will be used to indicate identical or similar assembly all the time.Only provide accompanying drawing, thereby accompanying drawing not a limitation of the present invention through illustration.

Communication system according to an illustrative embodiment of the invention is to be used to the system such as various communication services such as speech data, grouping (packet) data is provided, and this system can comprise base station and terminal.

Terminal according to an illustrative embodiment of the invention also can be called as subscriber board (SS), subscriber equipment (UE), mobile device (ME), travelling carriage (MS) etc., and can comprise such as mobile phone, PDA, smart phone, notebook etc. having the mancarried device of communication function or such as the non-mancarried device of PC, car-mounted device.

Base station (BS) is meant the fixed position that communicates with the terminal, and the base station can also be called as eNB (NodeB of evolution), base transceiver systems (BTS), access point (AP) etc.One or more sub-district may reside in the base station, and can use the interface that is used to send customer service or control business between the base station.Down link is meant the communication channel from BS to the terminal, and up link is meant the communication channel from the terminal to BS.

The multiple access scheme that is applied to wireless communication system according to an illustrative embodiment of the invention comprises any multiple access scheme such as 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) etc.

The multi-address method that is used for downlink transmission and ul transmissions can be different, and for example, down link can adopt the OFDMA scheme, and up link can adopt the SC-FDMA scheme.

Below will describe execution mode of the present invention in detail with reference to accompanying drawing, in the accompanying drawing, those assemblies of representing through same numeral are identical or corresponding, and irrelevant with figure number, and omit the explanation of repetition.

Fig. 1 shows basic frame structure.

As shown in Figure 1, the frame structure that is applied to system of the present invention can comprise the frame as the 5ms of basic element, and this frame (basic single unit of transfer) can be defined as the interval between the lead code.This frame comprises at least one subframe, 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 media interviews controls (MAC) layer execution.TTI can be a radio resources allocation unit.

Superframe has been configured a plurality of frames.Can dispose superframe according to the unit of for example 20ms.When configuration during superframe, be used for that initial fast cell is selected and system configuration information and the broadcast message of hanging down deferred traffic is set to unit of transfer, common, two to six frames form single superframe.In addition, comprise a plurality of subframes according to each frame of the unit of 5ms, and each sub-frame comprises a plurality of OFDM/OFDMA symbols.Each superframe comprises single superframe head (SFH), and this SFH comprises broadcast channel, and this SFH is positioned at the first subframe place of corresponding superframe.Can wait and design basic frame structure according to bandwidth, duplex method, Cyclic Prefix (CP) length of system channel.

Fig. 2 shows the frame structure to FDD (FDD) pattern.

In fdd mode, on frequency domain, distinguish downlink transmission and ul transmissions, and each subframe in each frame can be used for downlink transmission and ul transmissions.Uplink sub-frames can be visited in the terminal that is in fdd mode, and receives data burst (data burst) via arbitrary downlink subframe simultaneously.

As shown in Figure 2; The superframe of 20ms comprises the frame (F0, F1, F2, F3) that to have four length be 5ms, and the free time that frame F2 comprises subframe (SF0, SF1, SF2, SF3, SF4, SF5, SF6, SF7) that to have eight length be 0.617ms and 62.86ms at interval.Each sub-frame can comprise seven OFDM symbols (S0, S1, S2, S3, S4, S5, S6).

Fig. 3 shows the frame structure to time division duplex (TDD) pattern.

In tdd mode, on time domain, distinguish downlink transmission and ul transmissions, and distribute uplink transmission time at interval after the time interval in downlink transmission, make to transmit and receive data via down link and up link.

As shown in Figure 3; The superframe of a 20ms comprises the frame (F0, F1, F2, F3) of four 5ms, and a frame F2 comprises that eight length are the free time interval of the subframe of 0.617ms (SF0, SF1, SF2, SF3, SF4, SF5, SF6, SF7) and 62.86ms.This frame F2 comprises ratio according to down link (DL) and up link (UL) (D: U) definite D descending chain circuit frame and U uplink.When the ratio of DL and UL was 5: 3, five sub-frame (SF0, SF1, SF2, SF3, SF4) were configured to descending chain circuit frame, and three sub-frame (SF5, SF6, SF7) are configured to uplink.In the end insert idle characters that are used to distinguish DL and UL between a downlink subframe SF4 and first uplink sub-frames SF5, switch to UL from DL with indication.The interval of inserting between down link and the up link (gap) is called as sends conversion interval (TTG); And the interval of inserting between up link and the down link is called as reception conversion interval (RTG), and transmitting terminal and receiving terminal can be distinguished downlink transmission and ul transmissions through sending conversion interval (TTG) and receiving conversion interval (RTG).

And last downlink subframe SF4 comprises five OFDM symbols and last idle characters S5.Idle characters S5 is as distinguishing the TTG of down link (DL) with up link (UL).

To describe superframe head (SFH) now in detail.

In BWA, SFH will be sent to the terminal for the necessary system information of communicating by letter between terminal and the base station.As shown in Figure 1, SFH is positioned at first subframe place of single superframe.SFH can comprise main SFH (P-SFH) and auxilliary SFH (S-SFH), and this P-SFH transmits the control information that is used to receive this SFH, and this S-SFH transmits the necessary system information such as network entry.

This S-SFH can comprise a plurality of son groupings (SP) according to the transmission frequency of system information, and preferably, this S-SFH comprises three SP (SP1, SP2 and SP3).

During each superframe, send P-SFH, and the information element of this P-SFH (IE) comprises 4 bit LSB information and the relevant information of S-SFH with Hyper Frame Number (SFN).The information element of P-SFH is represented the one group information relevant with S-SFH with Hyper Frame Number (SFN).The information relevant with S-SFH comprises: S-SFH changes counting, and it indicates the version of the S-SFH of current transmission; S-SFH schedule information bitmap, which kind of S-SFHSP its indication sends in corresponding superframe; The S-SFH size, the quantity of its pointer LRU that transmission is distributed to S-SFH; The S-SFH repeat number, the transformat of its indication S-SFH; S-SFH SP changes bitmap, and which kind of S-SFH SP its indication has changed, etc.The size of S-SFH schedule information bitmap field and S-SFH SP change bitmap field equals the total quantity of the SP of S-SFH.

S-SFH transmits actual system information (information element that is called S-SFH); And as stated; The system information of being transmitted can be included in three sub-packet according to their characteristic, and each in said three sub-packet is called as S-SFH 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, the transmission cycle of SP2 is T _SP2And the transmission cycle of SP3 is T _SP3The time, can be through for example T _SP1＜T _SP2＜T _SP3Represent this a little transmission packets cycle.

In order to continue to communicate with the base station, the system information that transmits via S-SFH SP must be upgraded in the terminal.But in this case, if, with regard to the power consumption aspect at terminal, be poor efficiency then though system information is decoded to S-SFH IE less than change and upgraded.Thereby, the present invention proposes a kind of method that is used for upgrading effectively the system information that transmits via S-SFH.

Before upgrading the system information of coming from the base station transmission, the information errors from the P-SFH that this base station receives must be detected in the terminal.

Fig. 4 shows the flow chart of illustration detection according to an illustrative embodiment of the invention by the processing of the information errors of terminal from the P-SFH that the base station receives.

P-SFH can comprise that 4 bit LSB Hyper Frame Number (SFN), S-SFH change counting (below be called " CC "), S-SFH schedule information bitmap, S-SFH size, the repeat number of S-SFH, S-SFH SP and change bitmap (below be called " CB ") and Cyclic Redundancy Check.Usually, in order to check among the P-SFH that sends via air interface whether have mistake, crc value is calculated based on received data in the terminal.The terminal confirms whether there is mistake in the information in the P-SFH according to the crc value that is calculated.

But, by comparison, though the present invention propose a kind of when confirming through CRC in common P-SFH error detection process, not have mistake also through utilizing 4 bit LSB Hyper Frame Number fields in the P-SFH to come to determine whether in addition to occur the processing of mistake.

At first, the terminal is to received P-SFH decode (S401).

The terminal is mainly through decoding to confirm whether there is mistake (S403) in the information in the P-SFH to the crc value that is included among the P-SFH.

If producing according to mistake through CRC check, the terminal confirms that the result confirms to have mistake in the corresponding superframe; Then this superframe is treated to mistake (S417); If the terminal confirms do not have mistake in the corresponding superframe; Then necessary system information is come successfully to receive through initial network registration (login) processing (DL is synchronous) in the terminal, and calculates Hyper Frame Number (SFN).

The SFN in the P-SFH that sends from the base station is checked at the terminal through the Hyper Frame Number (SFN) that is relatively calculated, to determine whether do not having correctly to have sent corresponding P-SFH (S405) under the wrong situation.

If the terminal is confirmed to have mistake in the information in the P-SFH, then this terminal can be treated to the superframe of correspondence and have mistake and do not carry out any further operation (S417).

If the SFN in the P-SFH that confirms to send from the base station is identical with the SFN that is calculated by the terminal, then this terminal confirms that the superframe of correspondence does not have mistake (S407).

When sending S-SFH during the superframe in correspondence, CRC can be calculated to S-SFH in the terminal, if this terminal confirms do not have mistake in the information in the S-SFH, then this terminal can be moved to this corresponding superframe normally.

To describe the terminal now utilizes the S-SFH change counting and the S-SFH SP that transmit via P-SFH to change the processing that bitmap upgrades necessary system information.

Fig. 5 shows the divide into groups method of (SP) change bitmap (CB) information of according to an illustrative embodiment of the invention the change counting (CC) that when changing system information, changes the S-SFH that transmits via P-SCH and S-SFH.

As shown in Figure 5, when changing S-SFH and divide into groups any value among (SP) IE, can change the CC of the S-SFH that transmits via P-SFH.

Whether the CC shown in Figure 5 necessary system information that to be indication transmit via S-SFH reformed change counting, and SI is meant the schedule information bitmap that is shown in the S-SFH SP that sends in the corresponding superframe.And the CB of S-SFH indicates the variable condition of the S-SFH SP IE in the corresponding superframe.The variable condition of the S-SFHSP IE that each bit indication among the CB is corresponding.Bit #0, bit #1, bit #2 are mapped to S-SFH SP1IE, S-SFH SP2IE and S-SFH SP3IE respectively.If the arbitrary value among the S-SFH SP IE is changed, then corresponding bit can be reversed (toggle) or be set to 1.

As shown in the figure, can in superframe, transmit CC, SI and CB information via P-SFH.Suppose that the CC value that store recently at the terminal is 25, and dispatch and send S-SFHSP1 and SP2 that then the CC that receives recently of the P-SFH of superframe 1 is identical with the CC of storage recently with unaltered system information through superframe 1.The SI bitmap that sends through superframe 1 is set to " 110 ", is SP1 and SP2 with the SP that indicates the S-SFH that is dispatched.CB is " 000 ", and SPIE remains unchanged with indication.

In Fig. 5, when any changing system information that sends via S-SFH SP, S-SFH CC increases in the superframe of the S-SFH SP IE that at first sends the warp change.That is to say that in the superframe 2 of SP1 that at first sends the warp change and SP2, CC is increased to 27 from 25.In this case, because counter increases progressively according to the quantity through the SP that changes and the information element of two SP is changed,, CC count down to 27 so being increased progressively two.

Therefore, in the P-SFH of superframe 2, it is 27 that CC is changed, and it is SP1 and SP2 with the SP that indicates the S-SFH that is dispatched that the SI bitmap is set to " 110 ", and CB is that " 110 " are SP1 and SP2 with indication through the SP IE that changes.

And system information is not changed in superframe 3, and has only dispatched SP1, so be retained as 27 at the CC at the P-SFH place of superframe 3, the SP of the S-SFH that the SI bitmap is set to " 100 " to be dispatched with indication is SP1, and CB is retained as " 110 ".

According to another implementation of the invention, CC increases according to the numbering (that is, with the superframe being unit) of superframe.And, irrelevant with the transmission time points of S-SFH SP IE, when identification of base stations goes out to be necessary to change CC, CC is increased.

Will be described below now by the terminal and when receiving change information, system information is carried out method for updating.

P-SFH IE is sent to the terminal in the base station, and this P-SFH IE comprises that S-SFH schedule information bitmap (SI), S-SFH change counting (CC) and S-SFH grouping (SP) changes bitmap (S-SFH SP CB).

The terminal when receiving P-SFH IE from the base station to received P-SFH IE decode (S601).

Decoding to the S-SFH change counting (CC) and S-SFH SP change bitmap (CB) information that are included among the P-SFH IE in the terminal, and determines whether S-SFH IE is decoded.

At first, when the terminal received P-SFH IE, the terminal compared (S603) to the value of each S-SFH CC among P-SFH IE that receives recently and the P-SFH IE that stores recently.

When comparing these CC values, if not there are differences (CC difference=0) between these two values, then the terminal confirms that S-SFH does not change, and omits the decoding (S605) to each S-SFH IE.

When these CC values relatively, if the difference between these two values greater than 1 (CC difference＞1), then the terminal confirms that one or more S-SFH IE is changed, and each S-SFH IE is carried out decode (S607).After each S-SFH IE is carried out decoding, S-SFH CC and the S-SFH SP CB (S617) of terminal storage through changing.

When comparing these CC values, if the difference between these two values is 1 (CC difference=1), then the terminal compares (S609) to S-SFH CB that has received and stored before and the S-SFH CB that newly receives.

According to changing the result that bitmap compares, the terminal confirm with the corresponding S-SFHSP IE in bit position that is overturn be the S-SFH SP IE that is changed, and this corresponding SP IE is decoded and upgrades (S611).

Then, S-SFH CC that terminal storage changed and S-SFH SP CB (S617).

In illustrative embodiments shown in Figure 6; When the difference between the S-SFH change counting of S-SFH change counting of being stored and the current P-SFH that receives is 2; (value that changes the identical bit position of bitmap with S-SFH SP is reversed: 0 → 1 → 0) if same S-SFH SP is changed continuously; Then the terminal can know whether S-SFH is changed, but can not know that which S-SFH SP is changed.Thereby, do not know under the reformed situation of which S-SFH SP that at the terminal terminal receives each S-SFH SP and checks that it is 1 or 2 or bigger that S-SFH changes the difference of counting, and definite S-SFH SP that is changed.

In illustrative embodiments shown in Figure 7; When utilizing S-SFH to change counting and S-SFH SP to change bitmap and confirm S-SFH SP bit information (whether inspection S-SFH SP bit information is owing to difference is reversed), can identify and continuously change that (value of the bit position identical with S-SFH SP change bitmap is reversed: S-SFH SP bit information 0 → 1 → 0).

Similar with situation shown in Figure 6, P-SFH IE is sent to the terminal in the base station, and this P-SFH IE comprises that S-SFH schedule information bitmap (SI), S-SFH change counting (CC) and S-SFH grouping (SP) changes bitmap (S-SFHSP CB).The terminal when receiving P-SFH IE to received P-SFH IE decode (S601).

The terminal changes counting (CC) and S-SFH SP and changes bitmap (CB) information and decode and determine whether S-SFH IE is decoded being included in S-SFH among the P-SFH IE, and to before receive and the S-SFH CC value of storage and the S-SFH CC value that newly receives compare (S703).

When comparing these CC values; If there are differences (CC difference ≠ 0) between these two values; Then the terminal to before receive and the S-SFH CB of storage compares with the S-SFH CB that newly receives, with the quantity of the bit confirming to be overturn whether with received CC and the CC that stored between difference identical (S707).When the difference of the quantity of the bit that is overturn and these CC values is identical, the terminal confirm with the corresponding S-SFHSP IE in bit position that is overturn be S-SFH SP IE through changing, and this corresponding SP IE is decoded and upgrades (S711).For example; If it is 2 that S-SFH changes the difference of counting; The CB that is stored is that " 000 " and the CB that is received are " 011 "; Then owing to two bits in the middle of a plurality of bits of the S-SFH SP change bitmap that overturn, the quantity of the definite bit that is overturn in terminal is identical with the difference of these CC values.Then, decode to these corresponding SP IE (SP2 and SP3) and upgrade in the terminal.And, S-SFH CC that terminal storage changed and S-SFH SP CB (S719).

If the quantity of the bit that is overturn is different with the difference of these CC values, then decode to whole S-SFH SP IE and upgrade in the terminal.

Fig. 8 sequentially illustrates the processing according to the updating system information of the 3rd illustrative embodiments of the present invention.

P-SFH IE is sent to the terminal in the base station, and this P-SFH IE comprises that S-SFH schedule information bitmap (SI), S-SFH change counting (CC) and S-SFH grouping (SP) changes bitmap (S-SFH SP CB).In this case, different with above-mentioned change bitmap, the base station only is set to 1 with the value of the corresponding bit of S-SFH SP that is changed, and other bit is set to 0.

At first, the terminal compares (S603) to S-SFH CC value that receives before and store and the S-SFH CC value that newly receives.

When comparing these CC values, if there is not difference (CC difference=0) between these two values, then the terminal confirms that S-SFH does not change, and omits the decoding (S605) to each S-SFH IE.

When these CC values relatively, if the difference between these two values greater than 1 (CC difference＞1), then the terminal is confirmed that one or more S-SFH IE has been changed and each S-SFH IE is carried out decode (S607).And, the terminal S-SFH CC value (S817) that storage is changed after each S-SFH IE is carried out decoding.

When these CC values relatively, if the difference between these two values is 1 (CC difference=1), then confirm to decode and this corresponding SP IE of upgrading is that bit in the SP change bitmap is set to 1 SP IE in the terminal.And decode to this corresponding SP IE and upgrade (S811) in the terminal.

Then, the S-SFH CC (S817) that terminal storage changed.

According to an illustrative embodiment of the invention, updating system information can be come through use information dispatching cycle of each S-SFH SP with the value of CC and CB in the terminal.

Information dispatching cycle of S-SFH SP can be sent to the terminal through following mode: P-SFH is passed through in (1); (2) through specific S-SFH SP; In this specific S-SFH SP, transmit information dispatching cycle (that is, this specific S-SFH SP comprises the cycle information of itself) of different S-SFH SP; (3) the MAC administrative messag (for example, RNG-REQ/RSP, SBC-REQ/RSP, REG-REQ/RSP) through in network entry process, transmitting; Perhaps (4) are through limit the fixing cycle in advance.

The terminal can be through a kind of transmission cycle that identifies each S-SFH SP clearly in above-mentioned four kinds of methods.And, the terminal at least twice or more times can impliedly identify the transmission cycle of each S-SFH SP when receiving each S-SFH SP.The terminal confirms that this information is effectively, till the transmission cycle of each S-SFH SP that is identified changes.

Fig. 9 shows the processing of upgrading S-SFH according to the terminal by being in park mode/idle pulley of an illustrative embodiments of the present invention.

As shown in the figure, owing to the terminal is in the unavailable interval during the superframe 1 that sends the S-SFH SP that is changed, so this terminal can not receive the S-SFH SP (901) that is changed at superframe 1.During superframe 2, this terminal is in the listening intervals.And this terminal gets in the unavailable interval at superframe 3 and superframe 4.

Thereby; When the terminal that is in dormancy or idle condition when failing to receive all during the listening intervals through the S-SFH SP that changes, this corresponding terminal should be waken up at the superframe place when during unavailable interval (power saving/sleep interval), sending these corresponding S-SFH SP through the transmission cycle information of utilizing the S-SFH SP that is changed next time.Preferably, this terminal should be waken up at the first superframe place when sending these corresponding S-SFH SP next time.That is to say that this terminal need not waken up at the superframe place that only sends the S-SFH SP that need not upgrade through the transmission cycle information of utilizing the S-SFH SP that is changed.Different operation can be carried out in remaining unavailable interim in this terminal after having upgraded S-SFH SP, perhaps do not require with the base station such as the power supply of closing one or more physical unit to communicate.

If the CC of supposition as shown in Figure 9 storage recently and the value of CB are 25 and " 000 " and confirmed unavailable interval and listening intervals; Then the terminal can be waken up at superframe 2 places, is changed P-SFH is decoded and identify S-SFH SP1 through CC in the superframe 2 of correspondence and CB.But, during superframe 2 (corresponding monitoring is at interval), do not send the S-SFH SP1 that is changed.Thereby; If identify the following fact: come during superframe 4, to send the S-SFH SP1 that is changed according to the transmission cycle information of S-SFHSP1; Although then superframe 4 is included in the unavailable interval, the terminal is waken up at superframe 4 places of correspondence and this corresponding S-SFH SP1 is decoded and upgrades.

If do not receive corresponding S-SFH SP come in unavailable interval, to send the superframe of corresponding S-SFH SP through the transmission cycle information of utilizing the S-SFH SP changed in expection during; Then the terminal should keep wake-up states; Till this terminal receives all corresponding S-SFH SP,, this terminal is not power down mode so should not being changed.If this terminal at first received the transmission cycle information of these S-SFH SP before receiving the S-SFH SP that is changed, then corresponding transmission cycle can be used in this terminal, to upgrade the S-SFH SP that is changed.

Will be described below a kind of method of sending information dispatching cycle now, in the method, the terminal can be detected each S-SFH SP that is sent effectively and use this method to come updating system information.

If giving the relevant information of transmission of the S-SFH SP at terminal with notice only is the transmission cycle of each S-SFH SP, then the terminal should detect each S-SFH SP continually transmission to find the transmission of these S-SFH SP.And, when be changed the dispatching cycle of each S-SFH SP, even the system information of sending through S-SFH SP is not changed, the transmission time that each S-SFH SP also should be detected in the terminal at least once more than.In order to detect the transmission time of each S-SFH SP, scan operation should be carried out in each superframe time in the terminal, and these frequent scan operations are invalid to being in to the terminal of energy-conservation dormancy/idle condition.

The invention provides a kind of method: the base station is not only with information but also the transmission deviation information of each S-SFH SP notified to terminal dispatching cycle, to detect the transmission time of each S-SFH SP effectively.The transmission intercal of schedule information indication S-SFHSP, the superframe that sent of offset information through indicating S-SFH SP with respect to the distance of the superframe that sends schedule information.Each S-SFH SP has schedule information and offset information, disposes each S-SFH SP through form.Following table 1 shows information dispatching cycle of each S-SFH SP.

Table 1

The cycle allocation index	Describe
		0	SP1-40ms，SP2-80ms，SP3-160ms
1	SP1-80ms，SP2-160ms，SP3-320ms

As shown in table 1, when the cycle, allocation index was set to 0, be 40ms the dispatching cycle of SP1, and be 80ms the dispatching cycle of SP2, and be 160ms the dispatching cycle of SP3.When the cycle, allocation index was set to 1, be 80ms the dispatching cycle of SP1, and be 160ms the dispatching cycle of SP2, and be 320ms the dispatching cycle of SP3.

Can the transmission deviation information configuration be become form according to the configuration in transmitting and scheduling cycle.

In execution mode shown in Figure 10, irrelevant with the initial superframe of each S-SFH SP, there is offset bank with same offset value.Shown in figure 10, when the cycle allocation index is 0 and the transmission cycle of superframe when being 20ms, the number of offset bank is 8.That is to say, come to repeat continuously eight offset bank from superframe #0 to superframe #7 through whole superframes.Can dispose this offset information through 3 bits, to limit this eight offset bank.

With reference to Figure 10, send the offset information of SP1 and each SP at superframe #0 place.The skew of SP1 is 0 to send SP1 with indication at current superframe #0; The skew of SP2 is that 1 transmission time with indication SP2 was next superframe (superframe #1) from current superframe #0, and the skew of SP3 is that 3 transmission times with indication SP3 were the 3rd superframes (superframe #3) from current superframe #0.The terminal can be detected the accurate transmission time of each SP based on this offset information.

In execution mode shown in Figure 11, can there be the offset bank with different deviants in the initial superframe according to each S-SFH SP.In some cases, since the terminal can life cycle information, offset configuration exponential sum S-SFH size discerns the schedule information of each S-SFH SP, so the base station can not send to the terminal with S-SFH schedule information bitmap.If the base station does not send to the terminal with any S-SFH SP, then the S-SFH size among the P-SFH is 0.The base station can be sent and comprised and be used to send the index of S-SFH SP or each S-SFH SP of type information.The terminal can be identified as SP1, SP2 or SP3 with received SP through index or the type information of S-SFH SP after received S-SFH SP is decoded.The terminal can be through correspondence information dispatching cycle of S-SFH SP discern transmission time of S-SFH SP.And even do not decode to another S-SFH SP IE in the terminal, the terminal also can be discerned the superframe that is sent of another S-SFH SP through transmission deviation.

In execution mode shown in Figure 12, irrelevant with the initial superframe of each S-SFH SP, can there be offset bank with same offset value.Shown in figure 12, when the cycle allocation index is 0 and the transmission cycle of superframe when being 20ms, the number of offset bank is 4.That is to say, come four offset bank of repetition superframe #0, superframe #2, superframe #4 and superframe #6 through whole superframes.Can dispose offset information to limit this four offset bank through 2 bits.This 2 bit offset configuration can comprise the skew of S-SFH SP1.

Following table 2 show according to an illustrative embodiment of the invention be the 2 bit offset configuration of sending through S-SFH SP1 in 0 o'clock at the cycle allocation index.

Table 2

The offset configuration index	Describe
		00	SP2-1，SP3-2
01	SP2-2，SP3-1
		10	SP2-1，SP3-4
11	SP2-2，SP3-3

In execution mode shown in Figure 13, owing to can have offset bank with different deviants according to the initial superframe of each S-SFH SP, so should limit all offset bank according to the initial superframe of each S-SFH SP.

Shown in figure 13; When sending SP1 through superframe #0; The skew of sending SP2 and SP3 through SP1, with transmission time of indication SP2 be next superframe (superframe #1) from current superframe #0, and the transmission time of SP3 is second superframe (superframe #2) from current superframe #0.The terminal can be detected the transmission time accurately of each SP based on offset information.

In execution mode shown in Figure 14, irrelevant with the initial superframe of each S-SFH SP, can there be offset bank with same offset value.Shown in figure 14, when the cycle allocation index is 0 and the transmission cycle of superframe when being 20ms, the number of offset bank is 2.That is to say, come two offset bank of repetition superframe #1 and superframe #5 through whole superframes.Can dispose offset information through 1 bit, to limit this two offset bank.This 1 bit offset configuration can comprise the skew of S-SFH SP2.

Following table 3 show according to an illustrative embodiment of the invention be the 1 bit offset configuration of sending through S-SFH SP2 in 0 o'clock at the cycle allocation index.

Table 3

The offset configuration index	Describe
		0	SP1-1，SP3-2
1	SP1-1，SP3-5

In execution mode shown in Figure 15, owing to can have offset bank with different deviants according to the initial superframe of each S-SFH SP, so should limit all offset bank according to the initial superframe of each S-SFH SP.

Shown in figure 15; When sending SP2 through superframe #1; The skew of sending SP1 and SP3 through SP2, with transmission time of indication SP1 be the 3rd superframe (superframe #4) from current superframe #1, and the transmission time of SP3 is the next superframe (superframe #2) from current superframe #1.The terminal can be detected the transmission time accurately of each SP based on offset information.

In execution mode shown in Figure 16, irrelevant with the initial superframe of each S-SFH SP, can there be offset bank with same offset value.Shown in figure 16, when the cycle allocation index is 0 and the transmission cycle of superframe when being 20ms, the number of offset bank is 1.That is to say, come the offset bank of repetition superframe #3 through whole superframes.Can dispose offset information through 1 bit, to limit this offset bank.This 1 bit offset configuration can comprise the skew of S-SFH SP3.

Yet; When the cycle allocation index is 1; Because can there be the offset bank that S-SFH SP3 sends of passing through with different deviants in the initial superframe according to each S-SFH SP, so should limit all offset bank of sending through S-SFH SP3 according to the initial superframe of each S-SFH SP.When the cycle allocation index was 1, the number of offset bank can be 15.It is the 4 bit offset configuration of sending through S-SFH SP3 in 1 o'clock that following table 4 is illustrated in the cycle allocation index.

Table 4

The offset configuration index	Describe
		0000	SP1-1，SP2-2
0001	SP1-1，SP2-3
		0010	SP1-1，SP2-4
0011	SP1-1，SP2-6
		0100	SP1-1，SP2-7
0101	SP1-2，SP2-1
		0110	SP1-2，SP2-3
0111	SP1-2，SP2-4
		1000	SP1-2，SP2-5
1001	SP1-2，SP2-7
		1010	SP1-3，SP2-1
1011	SP1-3，SP2-2
		1100	SP1-3，SP2-4
1101	SP1-3，SP2-5
		1110	SP1-3，SP2-6

Shown in figure 17, can be configured to table according to the offset bank of each cycle allocation index through merging.The deviant (for example the skew " 0000 " of skew of cycle allocation index 0 " 0 " and cycle allocation index 1 is identical in fact value) that repeats can be merged into a deviant.

According to another embodiment of the present invention, transmission deviation information can be configured to simplification information, rather than is configured to precise information.Transmission cycle through with the specific S-SFH SP of transmission cycle information and offset information is divided into n cycle, simplifies the transmission cycle that offset information is indicated another S-SFH SP substantially.

Figure 18 shows the simplification transmission deviation information that S-SFH SP3 sends of passing through according to an illustrative embodiment of the invention.

Shown in figure 18, cycle of S-SFH SP3 is divided into two cycles (the 1st cycle and the 2nd cycle), through using the indication in the cycle of being divided, simplify the transmission cycle that offset information is indicated S-SFH SP1 and SP2 substantially.The skew of S-SFH SP1 is 0, with first transmission time of indication S-SFH SP1 greatly about the 1st cycle, and the skew of S-SFH SP2 is 1, with first transmission time of indication S-SFH SP2 greatly about the 2nd cycle.The terminal receives the simplification offset information of the SP1 at superframe #2 place, and because the simplification offset information of SP1 indicated for the 1st cycle, so the system information of sending through SP1 is detected through after the reception of this information, scanning continuously in this terminal.Then, decode to the system information of sending through SP1 and upgrade in the terminal.If the system information through SP2 sends need be upgraded, then the terminal receives the simplification offset information of the SP2 at superframe #2 place, and can detect the system information of sending through SP2 through during the 2nd cycle, scanning.Preferably, the microsleep pattern can be carried out to save power consumption in the 1st cycle in the terminal.

According to another embodiment of the present invention, the base station can be through the transmission time of indicating each S-SFH SP with respect to the distance of the superframe that sends transmission cycle information.

Shown in figure 19, come at superframe #6 transmission information dispatching cycle and offset information through SP3, three superframe places (superframe #3) send S-SFH SP1 before superframe #6, and send this S-SFHSP1 by the cycle of per 7 superframes.So the base station sends to the terminal with offset information " 3 " and the cycle information 7 of S-SFH SP1.Send S-SFH SP2 at latter two superframe place of superframe #6 (superframe #8), and send this S-SFH SP2 by the cycle of per 10 superframes.So the base station sends to the terminal with offset information "+2 " and the cycle information 10 of S-SFH SP2.The terminal receives at superframe #6 and comprises the offset information relevant with SP2 with S-SFH SP1 and the S-SFHSP3 of cycle information, and in the transmission time that does not have to discern under the situation of scan operation SP1 and SP2.

According to another embodiment of the present invention, the terminal can use information dispatching cycle of each S-SFH SP to upgrade the system information that is changed.If the terminal detects in unavailable interim and do not receive the S-SFH SP that is changed at the superframe place of being dispatched, the transmission cycle of then corresponding S-SFH SP is changed, and the S-SFH SP3 that comprises cycle information is changed.In this case, the terminal should be waken (normal mode) up, receives till the S-SFH SP that is changed up to this terminal.

If receive information dispatching cycle before the S-SFH SP that the terminal changes receiving, then this terminal can use this information to upgrade the S-SFH SP that is changed dispatching cycle.That is to say that this terminal can skip over (skip) scan operation during the superframe that sends unaltered S-SFH SP.

The update method of S-SFH when Figure 20 shows detecting the S-SFH SP that is changed at the terminal and do not have as limiting in nearest SP information dispatching cycle, to dispatch according to an illustrative embodiment of the invention.

As stated, send CC and CB from the base station through P-SFH at each superframe, the terminal is stored in this CC and CB in its memory.The CC that receives recently and store is 25, and CB is 000.

The change of S-SFH SP1 and SP3 is discerned at the terminal through CB (101) at superframe #1.Information and offset information is expected among the superframe #5 transmission S-SFH SP1 and transmission S-SFH SP3 in superframe #10 dispatching cycle can be used in the terminal.If the transmission time of SP1 and SP3 is included in the unavailable interval (energy-conservation/sleep interval), then wake up from power save mode at superframe #5 at the terminal.Yet the terminal detects S-SFH SP1 and is not scheduled at the superframe #5 place that limits in the information dispatching cycle recently or quilt identification impliedly, and the scan operation that is used to check P-SFH is carried out at the terminal continuously, to detect S-SFH SP1 and SP3 from superframe #6.The terminal is identified through SFH schedule information bitmap through inspection P-SFH: do not dispatch S-SFH SP1 and SP3 from superframe #6 to superframe #8.The terminal can receive S-SFH SP1 and the reception S-SFH SP3 at superframe #10 place through the operation of the continuous sweep in the awakening mode is next at superframe #9 place.

The update method of S-SFH when Figure 21 shows according to the detecting the S-SFH SP that is changed at the terminal and do not have as limiting in nearest SP information dispatching cycle, to dispatch of another embodiment of the present invention.

If the terminal receives the information and offset information dispatching cycle of S-SFH SP1 through S-SFH SP3 receiving at superframe #10 before the S-SFH SP1 at superframe #8, then this terminal can through S-SFH SP1 received dispatching cycle information and offset information discern the transmission time of this S-SFH SP1 at superframe #10 place.Therefore, the P-SFH that sends at superframe #9 place is not checked at the terminal.

The update method of S-SFH when Figure 22 shows according to the detecting the S-SFH SP that is changed at the terminal and do not have as limiting in nearest SP information dispatching cycle, to dispatch of another embodiment of the present invention.

When terminal recognition went out the S-SFH SP that changed and do not dispatch according to the transmission time that limits, this terminal received the S-SFH SP3 that sends information dispatching cycle.Identical with situation shown in Figure 20, the CC that receives and store recently is 25, and CB is 000.

The change of S-SFH SP1 and SP3 is discerned at the terminal through CB (101) at superframe #1.The terminal can use dispatching cycle information and offset information be expected among the superframe #5 and send S-SFH SP1 and in superframe #8, to send S-SFH SP3.If the transmission time of SP1 and SP3 is included in the unavailable interval (energy-conservation/sleep interval), then wake up from power save mode at superframe #5 at this terminal.Yet the terminal detects S-SFH SP1 and is not scheduled at the superframe #5 place that limits in the information dispatching cycle recently, and the superframe #8 of the transmission of previous scheduling S-SFH SP3 is only checked at the terminal, and does not carry out the scan operation that is used for from superframe #6 inspection P-SFH.The terminal is in the dispatching cycle of the information and after offset information identifies the transmission time of S-SFH SP1 (in superframe #10) through being sent by the S-SFH SP3 at superframe #8 place, and S-SFH SP1 is waken and received in this terminal up at superframe #10 place.

According to another embodiment of the present invention, under the dispatching cycle of S-SFH SP reformed situation, can send S-SFH SP with previous dispatching cycle and through the dispatching cycle that changes during the predetermined time cycle of base station.

Figure 23 shows the update method at the S-SFH SP of SP when dispatching cycle, information was changed according to an illustrative embodiment of the invention.

As stated, send CC and CB from the base station through P-SFH at each superframe, CC and CB are stored in the terminal in its memory.Receive recently and the CC of storage is 25 and CB is 000.The terminal is in the change of superframe #1 through CB (101) identification S-SFH SP1 and SP3.The terminal can use dispatching cycle information and offset information be expected among the superframe #5 and send S-SFH SP1 and in superframe #8, to send S-SFH SP3.If the transmission time of SP1 and SP3 is included in the unavailable interval (energy-conservation/sleep interval), then wake up from power save mode at superframe #5 at this terminal.

The terminal receives S-SFH SP1 and receives S-SFH SP3 at superframe #8 at superframe #5.If transmission cycle and the skew of S-SFH SP1 are changed, then transmission cycle and the offset information through changing of S-SFH SP1 discerned at the terminal through S-SFH SP3 at superframe #8.Then, the terminal can receive the S-SFH SP1 that has changed the transmission time at superframe #10.

Figure 24 shows the update method at the S-SFHSP of SP when dispatching cycle, information was changed according to another embodiment of the present invention.

If the transmission time of S-SFH SP1 or SP2 is changed, then S-SFH SP1 or the SP2 that S-SFHSP3 rather than transmission have changed the previous scheduling of transmission cycle sent in the base station during predetermined period.

As stated, can send CC and CB at each superframe from the base station through P-SFH, CC and CB are stored in the terminal in its memory.Receive recently and the CC of storage is 25 and CB is 000.The terminal is in the change of superframe #1 through CB (101) identification S-SFH SP1 and SP3.The terminal can use dispatching cycle information and offset information be expected among the superframe #5 and send S-SFH SP1 and in superframe #8, to send S-SFH SP3.If the transmission time of SP1 and SP3 is included in the unavailable interval (energy-conservation/sleep interval), then wake up from power save mode at superframe #5 at the terminal.

Shown in figure 24, the terminal receives S-SFH SP3 rather than S-SFH SP1 at superframe #5.The transmission time of the reformed S-SFH SP1 of transmission cycle at superframe #10 can be discerned through S-SFH SP3 in the terminal.Therefore, the terminal can normally receive S-SFH SP1 at superframe #10.

The terminal of carrying out the operation of updating system information comprises transmitter 10, receiver 20, decoder 30, controller 40 and memory 50.

Receiver 20 receives the change information of the data, system information and the indication mechanism change in information state that send through the superframe that comprises P-SFH and at least one S-SFH SP from the base station.

Change information comprises changing to be counted (CC) and changes bitmap (CB).As stated, send CC and CB from the base station through P-SFH at each superframe, this CC and CB are stored in the terminal in its memory 50.And, can send information dispatching cycle of indicating the sub-transmission packets cycle through predetermined son grouping or P-SFH.

P-SFH information element (IE) in 30 pairs of received superframes of decoder is decoded, and this P-SFH information element (IE) comprises that schedule information bitmap, change counting and the son grouping (SP) of S-SFH change bitmap.

Controller 40 detects the system information through changing of divide into groups sending through son not to be had as indicating in the information dispatching cycle, to dispatch, and controller 40 is controlled to be awakening mode with system operation modes, till the system information that changes up to receiving.If through P-SFH or specific S-SFH SP receiving scheduling cycle information, then this terminal can use this information to upgrade the system information that is changed of sending through S-SFH SP before receiving S-SFH SP at the terminal.

Controller 40 is through comparing with received change counting and change bitmap and control the operation that the information element of S-SFH SP is decoded and upgraded being stored in the change counting in the memory 50 and changing bitmap.In addition; The change counting that 40 pairs of controllers are stored in the memory 50 compares with received change counting; If not there are differences between these two values; Then controller 40 is not decoded to the S-SFH information element, and if there are differences between these two values, then 40 pairs of controllers are stored in SP in the memory 50 and change bitmap and compare with received SP change bitmap.

As stated; To being stored in SP in the memory when changing bitmap and comparing with received SP change bitmap; If equal to change poor between the count value through the quantity of bit of upset; Then the corresponding S-SFH SP in the position with the bit that is overturn in 40 pairs of received superframes of controller decodes, and if be different from through the quantity of bit of upset and change poor between the counting, then each the S-SFH SP in 40 pairs of superframes of controller decodes.Perhaps, only be set to 1 and other remaining bits when being set to " 0 " in the value with the corresponding bit of S-SFH SP that is changed, the SFH SP with bit value " 1 " in 40 pairs of received superframes of controller decodes.

As stated; Except said elements; Basically comprise the required software and hardware of realization technological thought of the present invention according to device of the present invention; For example, output unit (display, loud speaker etc.), input unit (keyboard, microphone etc.), memory, transmission and receiving element (RF module, antenna etc.) etc.These elements are significantly to those skilled in the art, so omit the detailed description to these elements.

In illustrative embodiments of the present invention, said method can be realized through software, hardware or their combination.For example; (for example can be stored in storage medium according to the method for the invention; The internal storage of portable terminal, flash memory, hard disk etc.) in, and can be through realizing by code in the software program of processor (for example, the internal microprocessor of portable terminal) execution or order.

Because can be according to implemented in many forms the present invention under the situation that does not depart from spirit of the present invention or essential characteristics; So should also be appreciated that; Only if additionally point out; Otherwise above-mentioned execution mode does not receive the restriction of any details of above explanation; But carry out broad understanding in the spirit and scope of the present invention that should in liking claim enclosed, limit, therefore, accompanying claims be intended to comprise in the border that falls into claim and the scope or the equivalent of these borders and scope in change and revise.

Claims

1. the method for a updating system information in the terminal of sending data through superframe, this method may further comprise the steps:

Receive the information and the change information of indicating the variable condition of this system information dispatching cycle of system information through superframe head (SFH) transmission, this system information from the base station; And

Upgrade said system information based on said change information,

Wherein, said SFH comprises main SFH (P-SFH) and auxilliary SFH (S-SFH), and said P-SFH comprises said change information, and said S-SFH comprises that at least one height that comprises said system information divides into groups,

Divide into groups to send said dispatching cycle of the information in said sub-transmission packets cycle of indication through said P-SFH or predetermined son, and

When said terminal detects the system information through changing of dividing into groups to send through said son and as indicating in the information said dispatching cycle, does not dispatch, said terminal wake-up, said till the system information that changes up to receiving.

2. method according to claim 1; Wherein, Said S-SFH comprises three sub-packet that have different transmission cycles separately; And said change information comprises three bitmaps that bit constitutes by the variable condition of indicating said three sub-packet respectively, and when the arbitrary value in the said son grouping was changed, the bit of the corresponding position in the said bitmap was reversed or is set to 1.

3. method according to claim 1, wherein, said change information comprises and changes counting, when the arbitrary value in said son divides into groups was changed, said change count increments 1 was also asked mould to 16.

4. method according to claim 1; This method is further comprising the steps of: store said change information; Wherein, Said S-SFH comprises three sub-packet and said change information, and said three sub-packet have different transmission cycles separately, and said change information comprises and changes counting and by three bitmaps that bit constitutes of the variable condition of indicating said three sub-packet respectively; And wherein; The step of upgrading said system information may further comprise the steps: received change counting and the change counting of being stored are compared, and under situation about there are differences between the change counting that received change is counted and stored, upgrade said system information through changing based on said bitmap.

5. method according to claim 1, wherein, said receiving step also receives transmission deviation information, and the indication of this transmission deviation information comprises the superframe that said son divides into groups and comprises the distance between the superframe of said dispatching cycle of information.

6. the method for a updating system information in the terminal of sending data through superframe, this method may further comprise the steps:

Upgrade said system information based on said change information,

Divide into groups to send said dispatching cycle of the information in said sub-transmission packets cycle of indication through predetermined son, and

When said terminal detects the system information through changing of dividing into groups to send through said son and as indicating in the information said dispatching cycle, does not dispatch; Said terminal wake-up; Up to divide into groups to receive said dispatching cycle of information through said predetermined son till, and said terminal uses said dispatching cycle information to upgrade said system information.

7. method according to claim 6; Wherein, Said S-SFH comprises three sub-packet that have different transmission cycles separately; And said change information comprises three bitmaps that bit constitutes by the variable condition of indicating said three sub-packet respectively, and when the arbitrary value in the said son grouping was changed, the bit of the corresponding position in the said bitmap was reversed or is set to 1.

8. method according to claim 6, wherein, said change information comprises and changes counting, when the arbitrary value in said son divides into groups was changed, said change count increments 1 was also asked mould to 16.

9. method according to claim 6; This method is further comprising the steps of: store said change information; Wherein, Said S-SFH comprises three sub-packet and said change information, and said three sub-packet have different transmission cycles separately, and said change information comprises and changes counting and by three bitmaps that bit constitutes of the variable condition of indicating said three sub-packet respectively; And wherein; The step of upgrading said system information may further comprise the steps: received change counting and the change counting of being stored are compared, and under situation about there are differences between the change counting that received change is counted and stored, upgrade said system information through changing based on said bitmap.

10. method according to claim 6, wherein, said receiving step also receives transmission deviation information, and the indication of this transmission deviation information comprises the superframe that said son divides into groups and comprises the distance between the superframe of said dispatching cycle of information.

11. the equipment of a updating system information, this equipment comprises:

Receiver, it is used for receiving from the base station change information of system information of sending through superframe head (SFH) and the variable condition of indicating this system information, and

Controller, it is used for upgrading said system information based on said change information,

Indicate information dispatching cycle in said sub-transmission packets cycle through being scheduled to son branch group of received, and

When said controller detects the system information through changing of dividing into groups to send through said son and as indicating in the information said dispatching cycle, does not dispatch; Said controller is controlled to be awakening mode with system operation modes, and is said till the system information that changes up to receiving.

12. equipment according to claim 11; Wherein, Said S-SFH comprises three sub-packet that have different transmission cycles separately; And said change information comprises three bitmaps that bit constitutes by the variable condition of indicating said three sub-packet respectively, and when the arbitrary value in the said son grouping was changed, the bit of the corresponding position in the said bitmap was reversed or is set to 1.

13. equipment according to claim 11, wherein, said change information comprises and changes counting, and when the arbitrary value in said son divides into groups was changed, said change count increments 1 was also asked mould to 16.

14. equipment according to claim 11; This equipment also comprises the memory that is used to store said change information; Wherein, said S-SFH comprises three sub-packet and said change information, and said three sub-packet have different transmission cycles separately; Said change information comprises and changes counting and by three bitmaps that bit constitutes of the variable condition of indicating said three sub-packet respectively, and

Said controller will be compared by said receiver said change counting that receives and the change counting that is stored in the said memory; And under situation about there are differences between the change counting that received change is counted and stored, said controller upgrades said system information through changing based on said bitmap.

15. equipment according to claim 11, wherein, said receiver receives transmission deviation information, and this transmission deviation information indication comprises the superframe that said son divides into groups and comprises the distance between the superframe of said dispatching cycle of information.