CN1930793B

CN1930793B - For the method being performed location updating by mobile subscriber station in broadband wireless access communication system using multi

Info

Publication number: CN1930793B
Application number: CN200580007010.7A
Authority: CN
Inventors: 姜炫求; 宋凤基; 严光燮; 洪升; 孙泳文; 金昭贤; 尹承一; 金泰源; 林根辉; 朴重信; 沈哉廷; 张洪成; 张容
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2004-03-04
Filing date: 2005-03-04
Publication date: 2016-11-30
Anticipated expiration: 2025-03-04

Abstract

A kind of method that operator scheme being controlled MAC layer in broadband wireless access communication system using multi by mobile subscriber station is provided, this broadband wireless access communication system using multi includes mobile subscriber station and provides the serving BS of service to this mobile subscriber station, the method comprising the steps of: when in the wake mode, do not have data to transmit between predetermined interim very first time serving BS and mobile subscriber station time, patten transformation is to idle pulley；Detection is in the mobile mobile station of idle pulley and moves in another paging domain belonging to target BS, and this paging domain is different from the paging domain belonging to serving BS；And when mobile subscriber station mobile being detected, patten transformation is to awakening mode, and performs location updating together with target BS.

Description

For being performed location updating by mobile subscriber station in broadband wireless access communication system using multi Method

Technical field

The present invention relates to broadband wireless access communication system using multi, be specifically related to a kind of for controlling media interviews control (MAC) The system and method for the operator scheme of layer.

As in the 4th generation (4G) communication system of next generation communication system, improving to concentrate on provides with high transmission speed Various service quality (QoS).The third generation (3G) communication system support is about 384kbps under the channel conditions of outdoor relative mistake Transmission speed, and the maximum transfer speed of about 2Mbps under the channel conditions that indoor are relatively good.

WLAN (LAN) and Metropolitan Area Network (MAN) (MAN) communication system generally support the transmission speed of 20 to 50Mbps.Due to Wireless MAN communication system has service coverage and support high transmission speed widely, and therefore it is suitable for supporting high-speed communication industry Business.But, Wireless MAN system does not provide the mobility of user's (that is, subscriber board (SS)) or the switching to SS high-speed mobile.

As a result, in 4G communication system, developing a kind of novel communication system, it is ensured that support relatively high transmission speed WLAN and the mobility of MAN system and QoS, to support the high speed business in 4G communication system.

IEEE (Institute of Electrical and Electric Engineers) 802.16a communication system use OFDM (OFDM) scheme and OFDM (OFDMA) scheme is to support the broadband transmission network of the physical channel to Wireless MAN system.

IEEE 802.16a communication system only considers single cell structure and fixing SS, so this system does not accounts for SS's Mobile.On the contrary, IEEE 802.16e communication system is defined as in addition to IEEE 802.16a communication system, for the mobility of SS Designed system, therefore should be reflected in the mobility of SS in multi-cell environment.In order to provide multi-cell environment as above The mobility of middle SS, the operator scheme that will consider and adapt to SS and base station (BS) thereof changes.To this end, actively carry out about multiple cell In structure, the research of SS switching is to support SS mobility.Here, move SS and be referred to as mobile subscriber station (MSS).

Fig. 1 is the block diagram of the structure schematically showing IEEE 802.16e communication system.

With reference to Fig. 1, IEEE 802.16e communication system, there is the multiple cell structure including community 100 and community 150.This Outward, IEEE 802.16e communication system includes controlling the BS 110 of community 100, controlling the BS 140 and multiple MSS of community 150 111,113,130,151 and 153.BS 110 and 140 and MSS 111,113,130, signal between 151 and 153 sends/receives Completed by OFDM/OFDMA scheme.The MSS 130 borderline region (that is, switch area between community 100 and community 150 Territory).When MSS 130 be switching to may time, MSS 130 can move and not lost traffic.

In IEEE 802.16e communication system, specific MSS receives pilot signal and the measurement sent from multiple BS and connects The carrier wave of the pilot signal received is to interference-to-noise ratio (CINR).MSS selection has the BS of the highest CINR as service BS, this Mean that MSS belongs to this BS.The MSS that have selected service BS receives the descending chain circuit frame and uplink frame sent from service BS, And use them sending and receiving in data.

In the case of considering that MSS is ambulant as mentioned above, MMS power consumption plays an important role in systematic function.Therefore, Therefore BS and MSS is proposed operation of sleep mode and awakening mode operation, to minimize MSS power consumption.

The operation mould of media interviews control (MAC) layer of IEEE 802.16e communication system is described next, with reference to Fig. 2 Formula.

Fig. 2 is the ideograph of the operator scheme of the MAC layer schematically showing IEEE 802.16e communication system.

MAC layer with reference to Fig. 2, IEEE 802.16e communication system supports two kinds of operator scheme (that is, awakening mode 210 Hes Park mode 220).First, it is proposed that park mode 220 is to make the period free time MSS when not sending grouped data Power consumption minimum.MSS from awakening mode 210 patten transformation (211) to park mode 220 so that not sending grouped data Time the power consumption of period free time MSS minimum.Generally, grouped data sends with burst flow (burst) when producing.? When sending data and performing identical operation when not sending data will be inefficient.To this end, develop dormancy as above Pattern operates.

When producing grouped data during being in park mode at MSS, MSS patten transformation is to awakening mode, and send/ Receive grouped data.But, owing to grouped data height relies on business model, it is therefore necessary to consider the traffic performance of grouped data With transmission plan characteristic, in an organized way perform operation of sleep mode.

Below, support describing the IEEE 802.16e communication system that is used for proposed up to now in sleep pattern 220 The scheme of operation.

First, in order to, in patten transformation to park mode 220, the patten transformation that MSS receives from BS is agreed to (consent).BS allows MSS to transfer in park mode 220, caches simultaneously or abandons the grouped data being sent to MSS.This Outward, the grouped data that BS will send during the listening interval of MSS notifies to MSS.MSS wakes up from park mode 220, and Check whether there is to be sent to any grouped data of MSS from BS.Listening interval is described in more detail below.Will be from when existing When BS is sent to the grouped data of MSS, MSS from park mode 220 patten transformation to awakening mode 210, and from BS receive point Group data.When there is not the grouped data being sent to MSS from BS, MSS rests in park mode 220.

Below, the parameter of operation in dormant mode support and awakening mode will be described.

1) sleep interval

Sleep interval is by MSS request and to be asked the interval distributed according to MSS by BS.Sleep interval also illustrates that from stopping Sleep mode 220 forwards the time that awakening mode 210 is spent to.In other words, sleep interval is defined as wherein MSS and rests on not Interval in sleep mode 220.Even if after sleep interval terminates, MSS can continue to rest in park mode 220.At this In the case of Zhong, MSS, by utilizing the initial sleep window value and final sleep window value preset, performs sleep interval update algorithm Update sleep interval.Here, initial sleep window value is corresponding to minimum sleep window value, and final sleep window value corresponds to Maximum sleep window value.Additionally, initial sleep window value and final sleep window value are all to be distributed by BS, and use frame number table Show.Owing to min-window value and max-window value will be discussed in more detail below, therefore it is omitted here further description.

2) listening interval

Listening interval is by MSS request and to be asked the interval distributed according to MSS by BS.Additionally, listening interval represents MSS wakes up from park mode 220 and with the downlink signal synchronization of BS, enough decode such as business instruction (TRF_IND) The time that the downlinlc message of message etc is spent.Here, TRF_IND message is the business representing MSS to be sent to The message of the existence of (that is, grouped data).Owing to TRF_IND message will be discussed in more detail below, be therefore omitted here into The description of one step.MSS, according to the value of TRF_IND message, determines and rests on awakening mode or patten transformation returns park mode.

3) sleep interval update algorithm

When MSS enters park mode 220, it is determined that sleep interval, simultaneously using default min-window value as minimum Park mode is spaced.After have passed through sleep interval, MSS wakes up from park mode 220 in listening interval, and inspection is The grouped data that no existence to send from BS.If there is no grouped data to be sent, then before sleep interval is reset to by MSS Two double-lengths of one sleep interval, and remain in park mode 220.Such as, when min-window value is " 2 ", MSS Sleep interval is set to 2 frames, and in park mode, stops 2 frames.After have passed through 2 frames, MSS wakes up from park mode Come, and determine whether to have received TRF_IND message.When being not received by TRF_IND message (that is, when not existing from BS When being sent to the grouped data of MSS), sleep interval is set to 4 frames (two double-lengths of 2 frames) by MSS, and stops during this 4 frame Stay park mode 220.So, sleep interval is increasing in the range of initial sleep window value to final sleep window value. Algorithm for updating sleep interval recited above is sleep interval update algorithm.

The network describing MSS next, with reference to Fig. 3 enters back into (re-entry) process.

Fig. 3 is the signal that the network of the MSS schematically showing traditional IEEE 802.16e communication system enters back into process Flow chart.

First, in step 311, according to switching, MSS receive from the BS (i.e., newly servicing BS) being switched to send descending Isl frame leading, and obtain and the new system synchronization servicing BS.Then, the BS letter that MSS comprises from the message that BS broadcasts Breath obtains downlink synchronization, and the message broadcasted includes Downlink Channel Descriptor (DCD) message, upstream channel descriptor (UCD) message, downlink map (DL_MAP) message, uplink map (UL_MAP) message, mobile neighbour bulletin (MOB_ NBR-ADV) message.

Then, in step 313, MSS sends to BS and adjusts request (ranging request, RNG_REQ) message, from BS receives in response to adjustment response (RNG_RSP) message of RNG_REG message, and from RNG_RSP message obtain with BS upper Uplink synchronization.Then, in step 315, MSS regulates its frequency and power.

Then, in step 317, MSS Yu BS consults the primary ability of MSS.In step 319, MSS is by together with BS Perform to differentiate that operation obtains authentication key (AK) and traffic encryption key (TEK).In step 321, MSS request BS registration should MSS, and BS completes the registration of this MSS.In step 323, MSS performs to be connected with the Internet Protocol (IP) of BS.In step In 325, MSS is by the IP down operation information associated with BS.In step 327, MSS performs to be connected with the Business Stream of BS.This In, Business Stream refers to wherein by having the connection transmission of certain predetermined threshold QoS and receiving MAC_SDU (business datum list Unit) stream.Then, in step 329, MSS uses the business provided from BS.Then, process terminates.

Then, the hand-off process in IEEE 802.16e communication system will be described with reference to Fig. 4.

Fig. 4 is the signal flow graph of the hand-off process schematically showing traditional IEEE 802.16e communication system.

With reference to Fig. 4, MSS scanning in the process above from the CINR (step 411) of pilot signal of neighbour BS.Work as MSS 400 determine that, when it should change service BS (step 413), MSS 400 sends mobile handoff request to current service BS 410 (MOB_HO_REQ) message (step 415).Fig. 4 has including a BS 420 and the 2nd BS 430 based on MSS 400 Two these hypothesis of neighbour BS.Here, MOB_HO_REQ message includes the result that MSS 400 scans.

When servicing BS 410 and receiving MOB_HO_REQ message, BS 410 is from the MOB_HO_REQ message received in service In the information comprised, the information (step 417) of the list of the neighbour BS that detection can be switched to about MSS 400.Here, in order to For the sake of convenient description, the list of the neighbour BS can being switched to by MSS 400 is referred to as " the available neighbour's BS list of switching ", and should Example assumes that the available neighbour's BS list of switching includes a BS 420 and the 2nd BS 430.Service BS 410 is to the available neighbour of switching The neighbour BS (that is, the oneth BS 420 and the 2nd BS 430) comprised in BS list sends switching notice (HO_NOTIFICATION) Message (step 419 and 421).

Receiving after the HO_NOTIFICATION message of service BS 410, a BS 420 and the 2nd BS 430 In each to service BS 410 send switching notice response (HO_NOTIFICATION_RESPONSE) message (step 423 With 425), it is the response message to HO_NOTIFICATION message.HO_NOTIFICATION_RESPONSE message comprises many Individual information element (IE), including MSS 400 MSS ID, whether can perform in response to the request of MSS 400 about neighbour BS The bandwidth kimonos that the response (ACK/NACK) of switching and each neighbour BS can provide when MSS 400 is switched to each BS Business class information.

When service BS 410 receives the HO_ sent from the first neighbour BS 420 and the second neighbour BS 430 During NOTIFICATION_RESPONSE message, service BS 410 select can optimally provide MSS when MSS 400 switches 400 bandwidth asked and the neighbour BS of the grade of service, target BS will being actually handovered to as MSS400.

Such as, if the grade of service required by MSS 400 can be provided by higher than the first neighbour BS 420 the grade of service, And the grade of service that can be provided by equal to the second neighbour BS 430, then service BS 410 will select the second neighbour BS 430 conduct Target BS.Then, service BS 410 sends switching notice confirmation (HO_NOTIFICATION_ to the second neighbour BS 430 CONFIRM) message, as the response (step 427) to HO_NOTIFICATION_RESPONSE message.

Service BS 410 sends mobile handoff response (MOB_HO_RSP) message to MSS 400, as to MOB_HO_REQ The response (step 429) of message.MOB_HO_RSP message comprises the information of target BS will being switched to about MSS 400.

Then, after receiving MOB_HO_RSP message, MSS 400 analyzes the information comprised in MOB_HO_RSP message, And select target BS.After selecting target BS, MSS 400 sends mobile handoff instruction (MOB_HO_ to service BS 410 IND) message, as the response (step 431) to MOB_HO_RSP message.

After receiving MOB_HO_IND message, service BS 410 recognizes that MSS 400 will be switched to MOB_HO_IND and disappear Target BS (that is, the second neighbour BS 430) comprised in breath, then discharges at present and the link (step 433) of MSS 400 foundation. Then, MSS 400 performs to process (step 435) with the initial adjustment of the second neighbour BS 430, and ought initially adjust and be processed into During merit, perform the network with the second neighbour BS 430 and enter back into process (step 437).

Operation with reference to the relevant switching described by Fig. 4 is the operation performed by the MSS being in awakening mode.But, when MSS be in during park mode detect it arrive cell border areas time, MSS is switched to awakening mode and performs Fig. 4's Operation about switching.In other words, when MSS moves to the second community from the first community in sleep pattern, MSS can not be extensive Multiple and the connection of the first community BS execution and the second community BS network enters back into process.Communicate at current IEEE 802.16e When in system, execution network enters back into process, MSS sends the BS identifier (BS ID) of the previous BS belonging to MSS, thus new BS can To recognize that MSS switches.Then, new BS can obtain the information of MSS from previous BS, and performs switching together with MSS.

Foregoing description give the power consumption for reducing MSS method and for MSS switching method.But, when being used for When the method for reduction power consumption is applied to the MSS being in park mode, the method becomes poor efficiency, is because while that MSS is in not Sleep mode, but when it moves between cells, it is necessary for performing to switch as above, especially, even if do not have at all There is the MSS of the business to send or to receive, when it moves between cells, also have to carry out switching.In the handover operation phase Between, decrease the effect of MSS lower power consumption, and produce message overhead.Additionally, all MSS being in dormancy and awakening mode Perform periodically to adjust.This also causes unnecessary power consumption and produces message overhead.

Additionally, current IEEE 802.16e communication system constantly gives the MSS distribution of the business not sending or receiving Various types of basic Radio Resources.The basic Radio Resource all distributed no matter it is actually needed always be presented herein below.

(1) basic connection identifier (CID (CID) (basic CID)

Basic CID is to use when sending relatively short and message (that is, critical control message) that be that must promptly send Connection identifier (CID.

(2) main management CID

The connection identifier that main management CID uses when being relatively long in transmission and have the message of relatively low urgency level Symbol.

(3) auxiliary management CID

Auxiliary management CID is to make when sending and having relatively low urgency level and relate to the message of at least three layers of standard agreement Connection identifier (CID.

Additionally, in IEEE 802.16e communication system, each MSS is allocated internet protocol version four (IPv4) address, This is also limited Radio Resource.As it has been described above, in IEEE 802.16e communication system, above-mentioned Radio Resource, as connected mark Know symbol and IPv4 address, the MSS of the data not sending or receiving may be assigned to, thus reduce the utilization of Radio Resource Efficiency.Supporting the MAC layer specific operation scheme of operation between BS and MSS accordingly, it would be desirable to a kind of, the program can maximize wireless The utilization ratio of resource, minimizes the power consumption of the MSS of high-speed mobile simultaneously.

Summary of the invention

Therefore, be made that the present invention to solve the problems referred to above occurred in prior art, and one object of the present invention It is to provide the system and method for a kind of MAC layer operator scheme controlling broadband wireless access communication system using multi.

It is a further object of the present invention to provide a kind of MAC layer operation mould by controlling broadband wireless access communication system using multi Formula, minimize the system and method for the power consumption of MSS.

It is a further object of the present invention to provide and a kind of be in the sky of MAC layer in broadband wireless access communication system using multi for paging The system and method for the MSS of not busy pattern.

It is a further object of the present invention to provide a kind of basis and be in the idle mould of MAC layer in broadband wireless access communication system using multi The position updating system of the movement of the MSS of formula and method.

In order to realize this target, it is provided that one is controlled media by mobile subscriber station in broadband wireless access communication system using multi and visits The method asking the operator scheme of key-course, this broadband wireless access communication system using multi includes mobile subscriber station and to this mobile subscriber station The serving BS of service is provided.The method comprising the steps of: when mobile subscriber station is inactive, and patten transformation is to idle In pattern, to save electric power and operating resource；Detection is in the mobile mobile station of idle pulley and moves to belonging to target BS In another paging domain, this paging domain is different from the paging domain belonging to serving BS；And when mobile subscriber station being detected Mobile time, patten transformation is to awakening mode, and performs location updating together with target BS.

According to a further aspect in the invention, it is provided that a kind of in broadband wireless access communication system using multi by mobile subscriber station control The method of the operator scheme of MAC layer, this broadband wireless access communication system using multi includes mobile subscriber station and to this shifting Dynamic subscriber board provides the serving BS of service.The method comprising the steps of: when in the wake mode, at predetermined very first time interval When not having data to transmit between period serving BS and mobile subscriber station, patten transformation is to idle pulley；And at idle pulley Under at each predetermined space, patten transformation to awakening mode also performs the location updating of mobile subscriber station self.

According to a further aspect in the invention, it is provided that a kind of in broadband wireless access communication system using multi, true by paging controller Some mobile subscriber stations in settled multiple mobile subscriber station are transformed into from the awakening mode having business to transmit does not has business to transmit Idle pulley time, the method for paging time point of multiple mobile subscriber station, described broadband wireless access communication system using multi includes base Stand, multiple mobile subscriber stations in community that this base station controls and be connected to the paging controller of this base station.The method includes step Rapid: to determine paging cycle；Determine deviant to be arranged differently than the time point that mobile subscriber station wakes up up；And based on paging week Phase and deviant determine the time point that mobile subscriber station wakes up up.

According to a further aspect in the invention, it is provided that a kind of in broadband wireless access communication system using multi by mobile subscriber station control The system of the operator scheme of MAC layer, this broadband wireless access communication system using multi includes mobile subscriber station and moves to this Subscriber board provides the serving BS of service.This system includes: mobile subscriber station, when in the wake mode, predetermined first time Between when not having data to transmit between interim serving BS and mobile subscriber station, patten transformation to idle pulley, when detecting Be in that the mobile mobile station of idle pulley moves to belonging to target BS is different from the paging domain belonging to serving BS another Time in one paging domain, patten transformation is to awakening mode, and sends position updating request to target BS, and according to response Location updating response in position updating request, from target BS, performs location updating；Target BS, with paging control Device performs paging domain together, when the position updating request from mobile subscriber station being detected, performs the position of mobile subscriber station Put renewal, and send location updating response to mobile subscriber station；And paging controller, for corresponding to target BS and movement The location update operations of subscriber board, updates the position of mobile subscriber station.

According to a further aspect in the invention, it is provided that a kind of control media interviews control in broadband wireless access communication system using multi The system of the operator scheme of layer.This system includes: mobile subscriber station, when in the wake mode, at predetermined very first time interval Period base station and mobile subscriber station between when not having data to transmit, patten transformation is to idle pulley, in idle mode each Predetermined space, patten transformation to awakening mode also sends position updating request, and asks according in response to location updating to base station Location updating response that ask, from target BS, performs location updating；Base station, performs paging zone together with paging controller Territory, when the position updating request from mobile subscriber station being detected, performs the location updating of mobile subscriber station, and to movement Subscriber board sends location updating response；And paging controller, grasp for the location updating corresponding to base station and mobile subscriber station Make, update the position of mobile subscriber station.

According to a further aspect in the invention, it is provided that a kind of broadband wireless access communication system using multi, including base station；It is in base station Multiple mobile subscriber stations in the community controlled；And paging controller, for determining when some in multiple mobile subscriber stations are moved Dynamic subscriber board is when the awakening mode having business to transmit is transformed into the idle pulley not having business to transmit, to multiple mobile subscriber stations Paging time point, determine deviant to be arranged differently than the time point that mobile subscriber station wakes up up, and based on paging cycle The time point that mobile subscriber station wakes up up is determined with deviant.

Accompanying drawing explanation

By detailed description below in conjunction with the accompanying drawings, the above and other objects, features and advantages of the present invention will become clear Chu, wherein:

Fig. 1 is the block diagram of the structure schematically showing typical IEEE 802.16e communication system；

Fig. 2 is the pattern of the operator scheme of the MAC layer support schematically showing typical IEEE 802.16e communication system Figure；

Fig. 3 is the letter of the process schematically showing the network that wherein MSS enters typical IEEE 802.16e communication system Number flow chart；

Fig. 4 is the signal flow graph schematically showing the hand-off process in typical IEEE 802.16e communication system；

Fig. 5 is to schematically show the behaviour that the MAC layer of broadband wireless access communication system using multi according to embodiments of the present invention is supported The figure of operation mode；

Fig. 6 be schematically show according to embodiments of the present invention, patten transformation that MSS is from awakening mode to idle pulley Figure；

Fig. 7 be according to embodiments of the present invention, paging be in the signal flow graph of process of MSS of idle pulley；

Fig. 8 be according to embodiments of the present invention, the hand-off process of the MSS that is in the idle pulley not requiring location updating Signal flow graph；

Fig. 9 be according to embodiments of the present invention, the letter of the hand-off process of the MSS that is in the idle pulley requiring location updating Number flow chart；And

Figure 10 be according to embodiments of the present invention, signal that the periodic location update of the MSS that is in idle pulley processes Flow chart.

Detailed description of the invention

Next, with reference to accompanying drawing, the preferred embodiments of the present invention are described.In the following description, when to the public affairs being incorporated herein by Know when the detailed description of function and configuration may make subject of the present invention not know, by this description of omission.

Fig. 5 is the media interviews schematically showing broadband wireless access (BWA) communication system according to embodiments of the present invention Control the figure of the operator scheme that (MAC) layer is supported.

Below in the description of the embodiment of the present invention, Institute of Electrical and Electric Engineers (IEEE) 802.16e is used to lead to Communication system passes through OFDM as the example of the BWA communication system of the present invention, IEEE 802.16e communication system (OFDM) scheme and OFDM (OFDMA) scheme communicate.MAC with reference to Fig. 5, IEEE 802.16e communication system Layer supports three kinds of operator schemes (that is, awakening mode 510, park mode 520 and idle pulley 530).Awakening mode 510 and dormancy Pattern 520 is identical with awakening mode 210 and park mode 220, therefore thereof will be omitted and describes it in detail.

Idle pulley 530 is the new model that the embodiment of the present invention includes.It is in the mobile subscriber station of idle pulley 530 (MSS) do not send or reception business.It measures the downlink preamble sent from neighbor base stations (BS), especially pilot signal Intensity, and only receive the system information from neighbor bss broadcast and beep-page message, thus maximize the effect of lower power consumption.That is, The MSS being in idle pulley 530 is inactive, and therefore present mode is become idle pulley 530 by MSS, in order to not Power supply and operating resource is preserved under active state.

In this case, high to interference-to-noise ratio (CINR) when the carrier wave from specific neighbour BS (that is, target BS) When current BS, MSS determines that while being in idle condition 530 MSS moves to target BS from service BS.

MSS analyzes the system information (SI) from the broadcast of target BS, and by paging domain identifier (PZID) and BS before Or the PZID of service BS compares.When the PZID of BS and the PZID of target BS is different before, MSS performs location registers.When When the PZID of BS and the PZID of target BS is identical before, MSS keeps dormancy again in a predetermined time interval.Have passed through After predetermined time interval, even if when position is not changed in, MSS also performs location registers, thus more new location information.

Below, paging domain will be described.

Paging domain is the region that plurality of BS is aggregated one paging unit of composition.That is, multiple BS is aggregated generation One paging domain as paging unit, and the positional information to each paging domain management MSS.Use paging zone Relam identifier (PZID) identifies each paging domain.The PZID of BS is broadcasted together with other system information by each BS at every frame. If MSS leaves current paging area and enters new paging domain, then MSS receives the new PZID from new paging domain BS.Newly Difference between PZID and the PZID received before makes MSS will appreciate that from paging domain before and enters into new paging domain.This In, PZID value may be embodied in downlink map (DL_MAP) message etc..

When MSS changes paging domain, it asks the change of position to the corresponding BS of new paging domain, such that it is able to new Position response ICQ.In a preferred embodiment of the invention, multiple communities are aggregated formation paging domain.But, paging Region includes that single subdistrict is also without departing from the scope of the present invention.Additionally, include that the paging domain of single subdistrict may apply to Inter-cell handover operations.When the concept of paging domain is identical with the concept of above-mentioned single community, the concept of paging domain can be with Identical mode is applied to the switching between community.Additionally, when the concept of paging domain is identical with the concept of above-mentioned single community, MSS can be recognized by the BS ID comprised in DL_MAP message and move to new community from community before.

Distributing to the MSS being in idle pulley 530 should the most not in IEEE 802.16e communication system The basic resources of disconnected distribution, such as basic connection identifier (CID (CID), main management CID and auxiliary management CID, thus maximizes wireless money The utilization ratio in source.

First, MSS from awakening mode 510 process to the conversion of idle pulley 530 is described below.

MSS is typically to be forced by BS or asking according to MSS from awakening mode 510 to the patten transformation of idle pulley 530 Ask and carry out.When it is contemplated that do not have data to send/receive during the predetermined time interval that pre-sets of BS or MSS, it is in and calls out The MSS of pattern 510 of waking up is by sending mobile idle pulley convert requests (MOB_IDL_REQ) message and receiving mobile idle mould Formula conversion response (MOB_IDL_RSP) message, patten transformation is to idle pulley 530.MSS from awakening mode 510 to idle pulley The patten transformation of 530 will be explained in detail below.

Meanwhile, when MSS receives mobile paging request (MOB_PAG_REQ) from BS, when MSS has data to be sent Time, when MSS leaves current paging area, when expired execution location updating at preset time intervals, or when MSS moves to New BS when not supporting idle pulley 530, as shown in arrow 541, MSS can be performed from idle pulley 530 to awakening mode The patten transformation of 510.MSS from idle pulley 530 to the patten transformation of awakening mode 510 will explained in detail below, therefore this In omit to its describe in detail.

Above with reference to Fig. 5, give the MAC layer for broadband wireless access communication system using multi according to embodiments of the present invention and prop up The description of the operator scheme held.Next, with reference to Fig. 6, MSS operation from awakening mode to idle pulley is described.

First, when MSS 610 is in awakening mode, do not have data send or connect between MSS and BS 620 In the time receiving, MSS 610 sends MOB_IDL_REQ message (step 611) to BS 620.MOB_IDL_REQ message can comprise preferably Idle interval (PREF_IDLE_INTERVAL), i.e. idle interval that MSS 610 stops in idle mode (or paging week Phase).The fact that name of such as paging cycle or preferred paging cycle etc is derived from, i.e. MSS depart from idle pulley and The paging from base station is monitored whether within this cycle.In the following description, term " paging cycle " will be mainly used Replace " idle interval ".

MOB_IDL_REQ message has structure as shown in table 1.

Table 1

Syntax	Size	Explanation
			MOB_IDL-REQ_Message_Format(){
Management message type=？？	8
			PREF_IDLE_INTERVAL_INDEX	8
Reserved	4
			}

In Table 1, " management message type (Management Message Type) " comprises about disappearing of currently just sending The information of the type of breath.At present, ' management message type ' of MOB_IDL_REQ message not yet determines, be therefore denoted as '？？’.This Outward, ' PREF_IDLE_INTERVAL_INDEX ' represents the preferred idle interval of MSS (that is, paging cycle).

BS 620 is receiving after the MOB_IDL_REQ message of MSS 610, to paging controller in step 613 (PC) 630 idle mode request (IDLE_MODE_REQUEST) message is sent.Receiving the IDLE_MODE_ from BS 620 After REQUEST message, paging controller 630 passes through the preferred paging cycle with reference to MSS 610 and the MAC Address of MSS 610, really Determine the paging cycle of MSS610.Here, paging cycle determined by paging controller 630 is referred to as " selected paging cycle ".This Outward, paging controller 630, according to selected paging cycle, determines paging time point (step 615) for paging MSS 610.Seek Controller 630 is exhaled to send the idle pulley response (IDLE_MODE_ comprising selected paging cycle and paging time point to BS 620 RESPONSE) message (step 617).

After receiving IDLE_MODE_RESPONSE message, BS 620 sends and includes the letter about selected paging cycle MOB_IDL_RSP message (step 619) of breath.MOB_IDL_RSP message has the structure shown in table 2 below.

Table 2

Syntax	Greatly Little	Explanation
			MOB_IDL_RSP_Message_ Format(){
Management message type=？？	8
			Idle license	1	0: idle conversion refusal 1: idle conversion license
If (idle license==0)
			After-REQ-action	1	Persistent period (the REQ-that 0:MSS can be given within the message by BS Duration) MOB_IDL_REQ is retransmitted after 1:MSS should not retransmit this MOB_IDL-REQ, and should wait from The MOB_IDL_RSP of BS
REQ-duration	4	After-REQ-action value is the persistent period in the case of 0
			Reserved	2
}else{
			SEL_IDLE_INTERVAL_INDEX	4
TB_REGI_REQUIRED	1	Require registration based on intervalometer 0: not requirement 1: requirement
			If (TB_REGI_REQUIRED！ =0)
TB_REGI_INDEX	8	0: reserved 1～255

}
	reserved	2
}

In table 2, ' management message type ' comprises the information of the type about the message currently just sent.At present, MOB_ ' management message type ' of IDL_RSP message not yet determines, be therefore denoted as '？？’.Additionally, ' idle license (Idle Approved) ' whether expression is licensed to the patten transformation of idle pulley.When ' idle license ' has value ' 0 ', its instruction is arrived The patten transformation of idle pulley is not permitted.When ' idle license ' has value ' 1 ', the patten transformation of its instruction to idle pulley It is licensed.' After-REQ-action ' represents whether MSS should retransmit MOB_IDL_REQ message；' 0 ' indicates it to weigh Pass, and ' 1 ' instruction should not.

' REQ_duration ' represents the time that MSS waited before retransmitting MOB_IDL_REQ message.‘SEL_IDLE_ INTERVAL_INDEX ' represents the selected paging cycle that paging controller 630 determines.' TB_REGI_REQUIRED ' indicates whether Require registration based on intervalometer, ' 0 ' instruction failed call registration, and ' 1 ' instruction requirement.' TB_REGI-INDEX ' instruction is when wanting The count value of intervalometer when having asked registration based on intervalometer.

MSS 610 is by with reference to the selected paging cycle comprised in the MOB_IDL_RSP message of BS 620, from waking up up Schema is transformed into idle pulley, and monitors whether the beep-page message to MSS 610 self in each paging cycle (step 621).

Below, it is used for determining paging cycle and the operation of paging time point by describing paging controller 630.

First, paging controller 630 is by using hash function, using the MAC Address of MSS 610 as input parameter, meter Calculate the first paging time point F₀.Paging controller 630 obtains paging time point set by using selected paging cycle D.Here, Selected paging cycle D can represent by following formula (1):

D=(2ⁱ× δ) ＜ Y ... ... ... .. (1)

In formula (1), D represents that paging cycle, Y represent the maximum of frame number, and i represents the index of paging cycle, and δ is equal to 2^j, and j typically has value 0.Certainly, j can have other values beyond 0.

When paging time point set expression be Fi} (i=0,1 ...., Y/D) time, (n+1) individual paging time point F_n+1 With the n-th paging time point F_nBetween relation can represent by following formula (2):

F_n+1=(F_n+D)modY ....................(2)

As shown in formula (2), (n+1) individual paging time point F_n+1It is set to and the n-th paging time point F_nDifference, and Consider the n-th paging time point F_nThe most with the deviation that paging cycle produces.Here, F_n+1With F_nBetween interval be paging Cycle.

The information about paging cycle and paging time point determined by paging controller 630 is by seeking belonging to MSS 610 The all BS in region are exhaled to share.

Above with reference to Fig. 6, give for according to embodiments of the present invention, behaviour that MSS is from awakening mode to idle pulley The description made.Next, with reference to Fig. 7, the operation that paging is in the MSS of idle pulley is described.

Fig. 7 be according to embodiments of the present invention, paging be in the signal flow graph of process of MSS of idle pulley.

First, when paging controller 780 detects paging or the business of MSS 710, paging controller 780 is to MSS 710 The all BS in paging domain belonging to current send PAGING_REQUEST message (step 711,713 and 715).In the figure 7, Paging domain belonging to MSS 710 is current includes three BS, BS the 720, the 2nd BS 740 and the 3rd BS 760.PAGING_ REQUEST message is sent to all BS in same paging domain, determines this is because each BS lacks enough information Which paging domain it is in.Oneth BS the 720, the 2nd BS 740 and the 3rd BS 760 receives from paging controller 780 PAGING_REQUEST message, and to MSS 710 send MOB_PAG_REQ message with MSS 710 as target (

step

717, 719 and 721).

MOB_PAG_REQ message has the structure shown in table 3 below.

Table 3

Syntax	Size	Explanation
			MOB_PAG-REQ_Message_Format(){
Management message type=？？	8
			The number of terminals of paging	8
For (j=0；The number of terminals of j ＜ paging；j++){
			MAC_ADDRESS	48	48 MSS unique mac addresses
PAG_PURPOSE	8

LENGTH	8	Payload length, in units of byte
			PAYLOAD	8x LENGTH position	Paging information
}
			}

In table 3, ' management message type ' comprises the information of the type about the message currently just sent.At present, MOB_ ' management message type ' of IDL_RSP message not yet determines, be therefore denoted as '？？’.' number of terminals (the Number of of paging Paged terminals) ' represent being in the middle of the MSS of idle pulley, the MSS quantity of the current paging of network.‘MAC_ ADDRESS ' represents the MAC Address (that is, unique identifier) of each paged MSS.Here it is possible to by amendment IEEE Existing message currently used in 802.16e communication system or by produce new information obtain beep-page message.Additionally, ' PAG_PURPOSE ' represents the object of MOB_IDL_REQ message to be sent, and ' LENGTH ' (length) represents that ' PAYLOAD ' is (clean Lotus) length, and ' PAYLOAD ' represents the actual content corresponding with the value of labelling in ' PAG_PURPOSE '.

In ' PAG_PURPOSE ', the value of labelling is as shown in Table 4 below.

Table 4

Value	Describe
		00000000	Reserved
00000001	Perform network to enter back into and initialize
		00000010	Not confirmation request (without MOB PAG-RSP)
00000011	Confirmation request (without MOB_PAG-RSP)
		00000100	Change idle interval
00000101	Request location updating
		00000110～0xff	Reserved

In table 4, ' 00000000 ' is for reserved value in the future, and ' 00000001 ' instruction receives MOB_PAG_REQ MSS perform network enter back into and initialize, ' 00000010 ' instruction receive MOB_PAG_REQ MSS need not in response to MOB_PAG_REQ sends MOB_PAG_RSP, and ' 00000011 ' instruction receives the MSS of MOB_PAG_REQ should be in response to MOB_ PAG_REQ sends MOB_PAG_RSP, and ' 00000100 ' instruction is necessary to change paging cycle, and ' 00000101 ' instruction should be held Line position updates, and ' 00000110 ' is for reserved value in the future to ' 0xff '.

According to the value of labelling in ' PAG_PURPOSE ', the content of log 5 to 9 in ' PAYLOAD '.

Table 5

Syntax	Size	Explanation
			PAG_PURPOSE_1_Format(){
Reason	8	Value 0: caching DL user data 1～0xff: reserved

It is interior that content instruction in table 5 records in ' PAYLOAD ' when ' PAG_PURPOSE ' upper labelling ' 00000001 ' Hold.When ' PAG_PURPOSE ' upper labelling ' 00000001 ', it indicates this message to be to comprise the downlink with MSS as target The MOB_PAG_REQ message of data.

Table 6

Syntax	Size	Explanation
			PAG_PURPOSE_2_Format(){
Message	Variable	The message of SMS, MMS etc., it is not required that response.

It is interior that content instruction in table 6 records in ' PAYLOAD ' when ' PAG_PURPOSE ' upper labelling ' 00000010 ' Hold.When ' PAG_PURPOSE ' upper labelling ' 00000010 ', it indicates this message to be not require to disappear in response to MOB_PAG_REQ Breath sends the MOB_PAG_REQ message of MOB_PAG_RSP message.

Table 7

Syntax	Size	Explanation
			PAG_PURPOSE_3_Format(){
Message	Variable	The message of SMS, MMS etc., it is desirable to response.

It is interior that content instruction in table 7 records in ' PAYLOAD ' when ' PAG_PURPOSE ' upper labelling ' 00000011 ' Hold.When ' PAG_PURPOSE ' upper labelling ' 00000011 ', it indicates this message to be to require in response to MOB_PAG_REQ message Send the MOB_PAG_REQ message of MOB_PAG_RSP message.

Table 8

Syntax	Size	Explanation
			PAG_PURPOSE_4_Format(){
Idle interval indexes	4
			Reserved	4

It is interior that content instruction in table 8 records in ' PAYLOAD ' when ' PAG_PURPOSE ' upper labelling ' 00000100 ' Hold.When ' PAG_PURPOSE ' upper labelling ' 00000100 ', it indicates this message to be the MOB_PAG_ that requirement changes paging cycle REQ message.

Table 9

Syntax	Size	Explanation
			PAG_PURPOSE_5_Format(){
Reserved	8

It is interior that content instruction in table 9 records in ' PAYLOAD ' when ' PAG_PURPOSE ' upper labelling ' 00000101 ' Hold.When ' PAG_PURPOSE ' upper labelling ' 00000101 ', it indicates this message to be the MOB_PAG_REQ of requirement location updating Message.

The example of Fig. 7 assumes that ' PAG_PURPOSE ' of MOB_PAG_REQ message is labeled as ' 00000011 ', and this indicates and rings MOB_PAG_RSP message should be sent in MOB_PAG_REQ message.Table 10 illustrates the structure of this MOB_PAG_REQ message.

Table 10

Syntax	Size	Explanation
			MOB_PAG- RSP_Message_ Format(){
Management message type=？？	8
			Reason	2	00&11: reserved 01:MOB_PAG_REQ accepts 10:MOB_PAG_REQ refuses

PL_TYPE	6	0: only confirm The response message of 1:SMS, MSS etc. 2-63: reserved
			LENGTH	8	If PL_TYPE==0, then this field is also set to 0
PAYLOAD	8xLENGTH position
			}

In table 10, ' management message type ' comprises the information of the type about the message currently just sent.At present, MOB_ ' management message type ' of PAG_REQ message not yet determines, be therefore denoted as '？？’.' reason (Cause) ' instruction sends MOB_ The reason of PAG_RSP message.When ' Cause ' upper labelling ' 01 ', its instruction MOB_PAG_REQ message is licensed.' 10 ' refer to Show that MOB_PAG_REQ message is rejected.Additionally, ' PL_TYPE ' represents the type of ' PAYLOAD ' of MOB_PAG_RSP message； ' 01 ' instruction only confirms, ' 10 ' instruction response message.' LENGTH ' represents the length of ' PAYLOAD '.

After receiving MOB_PAG_REQ message, MSS 710 ' the 00000011 ' of labelling recognizes from ' PAG_PURPOSE ' Knowledge is arrived, and MSS 710 sends MOB_PAG_RSP message in response to MOB_PAG_REQ message to corresponding BS.Here, if MSS 710 Before patten transformation to idle pulley, in paging domain, move to be different from another BS of the BS belonging to MSS 710, then MSS 710 performs initially to adjust (step 723) again.MSS 710 performs initially to adjust, this is because MSS 710 needs distribution Uplink bandwidth etc., in order to send MOB_PAG_RSP message.Fig. 7 assumes that MSS710 determines a BS according to initial adjustment 720 is the current affiliated service BS of MSS 710.

Then, MSS 710 sends MOB_PAG_RSP message (step 725) to a BS 720.Receiving MOB_PAG_ After RSP message, a BS 720 sends the ' PAGING_ in response to ' PAGING_REQUEST ' message to paging controller 780 RESPONSE ' message (step 727).Additionally, a BS 720 sends MOB_IDL_RSP message to MSS 710, thus control MSS 710 is transformed into idle pulley (step 729).

Above with reference to Fig. 7, give for according to embodiments of the present invention, paging be in the operation of MSS of idle pulley Description.Next, with reference to Fig. 8 describe according to embodiments of the present invention, do not require location updating, be in idle pulley The switching of MSS.

Fig. 8 be according to embodiments of the present invention, do not require location updating, the hand-off process of the MSS that is in idle pulley Signal flow graph.

Fig. 8 (that is, is using identical PZID based on the switching in same paging domain of MSS 810 being in idle pulley Paging domain in) situation of mobile (that is, performing switching).MOB_IDL_ is sent to MSS 810 with reference to Fig. 8, service BS 830 RSP message (step 811).Service BS 830 can send out in response to MOB_IDL_REQ message or based on unsolicited scheme Send MOB_IDL_RSP message.Here, the transmission of the MOB_IDL_RSP message of service BS 830 is based on unsolicited scheme , and the load of regulation service BS 830 can be intended to.Receiving the MOB_IDL_RSP message from service BS 830 After, MSS 810 is transformed into idle pulley from awakening mode.

During MSS 810 is in idle pulley, the coverage that it controls from service BS 830 moves to target BS 850 another coverages (step 813) controlled.For this example, it is assumed that service BS 830 and target BS 850 are positioned at same In one paging domain.

When MSS 810 moves, even if MSS 810 wakes up at paging time point performs network monitoring afterwards, service BS Communication between 830 and MSS 810 is also disconnected, thus MSS 810 can not receive MOB_PAG_REQ message.Therefore, MSS is worked as 810 when moving to new BS (that is, target BS 850), and the uplink channel descriptor (UCD) that MSS broadcasts from target BS 850 disappears Breath, downlink channel descriptor (DCD) message and DL_MAP and UL_MAP message receive the information (step of target BS 850 Rapid 815).As it has been described above, the PZID of target BS 850 may be embodied in DL_MAP message.

By receiving the BS information of target BS 850 broadcast, MSS 810 detects the PZID of target BS 850, it is thus realized that Service BS 830 and target BS 850 are positioned at same paging domain (step 817).Then, MSS 810 checks frame number, thus recognizes Know the paging time point to its own.Then, MSS 810 checks whether it arrives paging time point (step 819).If it is still Do not arrive paging time point, then MSS 810 scans neighbour BS (step 821).Here, scanning neighbour BS includes scanning from neighbouring BS The carrier wave of the pilot signal sent, to interference-to-noise ratio (CINR), is in the movement of the MSS of idle pulley with detection.

When it arrives paging time point, MSS wakes up from idle pulley, and receives the MOB_ from target BS850 PAG_REQ message (step 823).Here, suppose that the MOB_PAG_REQ message from target BS 850 transmission does not comprise MSS 810 MAC Address, thus MSS 810 is still in idle pulley.

Above with reference to Fig. 8, give for according to embodiments of the present invention, do not require location updating, be in idle mould The description of the switching of the MSS of formula.Now, by with reference to Fig. 9 describe according to embodiments of the present invention, use location updating, be in The switching of the MSS of idle pulley.

Fig. 9 be according to embodiments of the present invention, use hand-off process location updating, the MSS that is in idle pulley Signal flow graph.

Fig. 9 (that is, is using different PZID based on the switching in different paging domain of MSS 810 being in idle pulley Paging domain in) situation of mobile (that is, performing switching).MOB_IDL_ is sent to MSS 910 with reference to Fig. 9, service BS 930 RSP message (step 911).Service BS 930 can send out in response to MOB_IDL_REQ message or based on unsolicited scheme Send MOB_IDL_RSP message.Here, MOB_IDL_RSP message sends based on unsolicited scheme, and can be intended to The load of regulation service BS 930.Receiving after the MOB_IDL_RSP message of service BS 930, MSS 910 is from waking up up Patten transformation is to idle pulley.

In this example, during MSS 910 is in idle pulley, the coverage that it controls from service BS 930 is moved Move another coverage (step 913) that target BS 950 controls.Here, suppose that service BS 930 and target BS 950 are positioned at In different paging domains.When MSS 910 moves, even if MSS 910 wakes up at paging time point performs network monitoring afterwards, Communication between service BS 930 and MSS 910 is also disconnected, thus MSS 910 can not receive MOB_PAG_REQ message.Cause This, is when MSS 910 moves to new BS (that is, target BS 950), UCD message that MSS broadcasts from target BS 950, DCD message And DL_MAP and UL_MAP message receives the information (step 915) of target BS 950.As it has been described above, target BS 950 PZID may be embodied in DL_MAP message.

By receiving the BS information of target BS 950 broadcast, MSS 910 detects the PZID of target BS 950, it is thus realized that Service BS 930 and target BS 950 are positioned at different paging domains (step 917).Then, MSS 910 performs initially to adjust (step 919) is to obtain basic CID and main management CID.Then, MSS 910 to target BS 950 send shift position update please Seek (MOB_LU_REQ) message (step 921).MOB_LU_REQ message has structure as shown in table 11.

Table 11

Syntax	Size	Explanation
			MOB_LU-REQ_Message_Format(){
Management message type=？？	8
			PREF_IDLE_INTERVAL_INDEX	4
PREV_PZONE_ID
			}

In table 11, ' management message type ' comprises the information of the type about the message currently just sent.At present, MOB_ ' management message type ' of LU_REQ message not yet determines, be therefore denoted as '？？’.Additionally, ' PREF_IDLE_INTERVAL_ INDEX ' represents the preferred idle interval of MSS (that is, paging cycle), and ' PREF_PZONE_ID ' represents MSS before the handover The PZID of the service BS 930 belonging to 910.

Receiving after the MOB_LU_REQ message of MSS 910, target BS 950 sends position to paging controller 970 Put more newly requested (LOCATION_UPDATE_REQUEST) message (step 923).Here, send from target BS 950 LOCATION_UPDATE_REQUEST message comprises MAC Address and the MSS before the handover of the MSS 910 of requirement location updating The PZID of the service BS 930 belonging to 910.After receiving LOCATION_UPDATE_REQUEST message, paging controller 970 Based on the PZID comprised in LOCATION_UPDATE_REQUEST message and MAC Address, update the position of MSS 910, then ring Location updating response (LOCATION_UPDATE_ should be sent to target BS 950 in LOCATION_UPDATE_REQUEST message RESPONSE) message (step 925).Disappear receiving the LOCATION_UPDATE_RESPONSE from paging controller 970 After breath, target BS 950 sends shift position to MSS910 and updates response (MOB_LU_RSP) message (step 927).MOB_LU_ RSP message has the structure as shown in table 12 below.

Table 12

Syntax	Size	Explanation
			MOB_LD_RSP_Message_ Format(){
Management message type=？？	8
			LU permits	1	0: location updating failure 1: location updating success
If (LU license==0)
			After-REQ-action	1	0:MSS can be at the persistent period (REQ-that BS is given within the message Duration) MOB_LU_REQ is retransmitted after 1:MSS should not retransmit MOB_IDL-REQ, and should wait from BS's MOB_LU_RSP

REQ-duration	4	After-REQ-action value is the persistent period in the case of 0
			Reserved	2
}else{
			SEL_IDLE_INTERVAL_INDEX	4
TB_REGI_REQUIRED	1	Require registration based on intervalometer 0: not requirement 1: requirement
			If(TB_REGI_REQUIRED！=0)
TB_REGI_INDEX	8	0: reserved 1～255
			}
Reserved	2
			}

In table 12, ' management message type ' comprises the information of the type about the message currently just sent.At present, MOB_ ' management message type ' of LU_RSP message not yet determines, be therefore denoted as '？？’.Additionally, ' LU license ' indicating positions updates it is No failure；Value ' 0 ' indicates unsuccessfully, and is worth ' 1 ' and indicates successfully.' After-REQ-action ' indicates when location updating failure Whether MSS should retransmit MOB_LU_REQ message, and ' 0 ' instruction retransmits after waiting a predetermined period, and ' 1 ' instruction need not weight Pass.' REQ_duration ' instruction MSS waits the persistent period retransmitting MOB_LU_REQ message.‘SEL_IDLE_INTERVAL_ The paging cycle that INDEX ' instruction is newly determined when realizing location updating.' TB_REGI_REQUIRED ' indicates new BS (target BS) Whether require registration based on intervalometer.' TB_REGI-INDEX ' instruction intervalometer when require that registration based on intervalometer Count value.

Receiving after the MOB_LU_RSP message of target BS 950, MSS 910 is corresponding to MOB_LU_RSP message In the selected paging cycle that comprises etc., switching or patten transformation are to idle pulley.

Above with reference to Fig. 9, give for according to embodiments of the present invention, use location updating, be in idle pulley The description of switching of MSS.Now, by with reference to Figure 10 describe according to embodiments of the present invention, the week of the MSS that is in idle pulley Phase property location updating.

First, the MSS 1010 being in awakening mode sends MOB_IDL_REQ message (step 1011) to BS 1030.? Receiving after the MOB_IDL_REQ message of MSS 1010, BS 1030 sends IDLE_MODE_ to paging controller 1050 REQUEST message (step 1013).Receiving after the IDLE_MODE_REQUEST message of BS 1030, paging controller 1050 send the IDLE_MODE_RESPONSE message (step in response to IDLE_MODE_REQUEST message to BS1030 1050).After receiving IDLE_MODE_RESPONSE message, BS 1030 sends in response to MOB_IDL_REQ to MSS 1010 MOB_IDL_RSP message (step 1017) of message.Here, selected by MOB_IDL_RSP message comprises and determines MSS 1010 Paging cycle and paging time point and the request of registration based on intervalometer.I.e., it is assumed that ' the TB_ of MOB_IDL_REQ message REGI-REQUIRED ' is marked as 1.

Receiving after the MOB_IDL_RSP message of BS 1030, MSS from awakening mode switching or patten transformation to Idle pulley.MSS 1010 starts the counting of predetermined time interval ' TB_REGI_INTERVAL ', with request in idle mode Registration based on intervalometer, and when it arrives ' TB_REGI_INTERVAL ' (step 1019), perform for location updating Initial adjust (step 1021).By performing initial adjustment, MSS 1010 obtains basic CID and main management CID.Then, MSS 1010 send MOB_LU_REQ message (step 1023) to BS 1030.Step 1023 to 1029 in Figure 10 and MSS in Fig. 9 910, the step 921 to 927 between target BS 950 and paging controller 970 is similar to, and is therefore not repeated here it detailed Describe.

It follows that describe MSS 910 to determine the step of ' TB_REGI_INTERVAL '.

First, MSS 910 is by using ' TB_REGI_INDEX ' and ' SEL_IDLE_ in MOB_IDL_RSP message INTERVAL_INDEX ', it is thus achieved that ' TB_REGI_INTERVAL '.Here, ' TB_REGI_INTERVAL ' can use down facial (3) Represent.

TB_REGI_INTERVAL=2ⁱT .................(3)

In formula (3), i represents ' SEL_IDLE_INTERVAL_INDEX ', and T represents ' TB_REGI_INDEX '.That is, ' TB_REGI_INTERVAL ' can be expressed as the integral multiple of paging cycle.

Periodically carry out the location updating of MSS, reliable with the location updating of the convenience and MSS that increase location updating Property.Certainly, as described above with reference to Figure 10, even if when the region reality that MSS is positioned at does not changes, it is also possible to perform position more Newly.But, when paging controller performs paging in the case of the cell enlargement from MSS recent renewal to paging domain, The load caused due to periodic location update increases to reduce with the load caused owing to paging domain reduces mends Repay.

As it has been described above, the present invention provides a kind of new MAC layer operator scheme being applicable to broadband wireless access communication system using multi, from And while supporting MSS mobility and high speed data transfer, make power consumption minimum.Additionally, the present invention is by giving up same paging Network entrance in region processes, and prevents from unnecessarily taking up Radio Resource.Therefore, the present invention can utilize effect with maximum resource Rate, and eliminate the message overhead produced owing to network enters.

Although illustrate and describing the present invention with reference to its certain preferred embodiment, it is to be understood by those skilled in the art that On the premise of the present inventive concept limited without departing substantially from claims and scope, can to its carry out in form and details each Plant and change.

Claims

1. the method being performed location updating by mobile subscriber station in broadband wireless access communication system using multi, this broadband wireless connects Entering communication system include mobile subscriber station and provide the serving BS of service to this mobile subscriber station, the method comprising the steps of:

If in the wake mode, there is no data between predetermined interim very first time serving BS and mobile subscriber station Transmission, then patten transformation is in the idle pulley being different from park mode；

If in the wake mode, there is no data between serving BS and mobile subscriber station during the second predetermined time interval During transmission, patten transformation is to park mode；

When in idle mode, at the time determined based on paging cycle and deviant, patten transformation is to awakening mode, institute State the time point that deviant is determined to be arranged differently than mobile subscriber station from idle pulley patten transformation to awakening mode；

The paging information of broadcast is monitored in paging cycle；

When mobile subscriber station moves in same paging domain, maintain this idle pulley and be performed without initially adjusting；

When detecting paging domain and changing to another paging domain belonging to target BS, this another paging domain and serving BS Affiliated paging domain is different, from idle pulley patten transformation to awakening mode；

When at awakening mode, send position updating request to target BS；And

When at awakening mode, update response from target BS receiving position,

Wherein this paging information comprises the MAC address of mobile subscriber station,

Reduce the distribution of basic Radio Resource the most in idle mode.

2. the method for claim 1, further comprises the steps of:

If paging information comprises the MAC Address of mobile subscriber station self, it is understood that the existence of paging；And

Recognize that according to mobile subscriber station the existence of this paging performs mode change operation.

3. the method for claim 1, wherein awakening mode be perform wherein mobile subscriber station and serving BS it Between the pattern of grouped data send/receive operation.