CN100512051C - Apparatus and method for reducing paging channel loading for broadcast multicast services in a wireless network - Google Patents
Apparatus and method for reducing paging channel loading for broadcast multicast services in a wireless network Download PDFInfo
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- CN100512051C CN100512051C CNB200480001198XA CN200480001198A CN100512051C CN 100512051 C CN100512051 C CN 100512051C CN B200480001198X A CNB200480001198X A CN B200480001198XA CN 200480001198 A CN200480001198 A CN 200480001198A CN 100512051 C CN100512051 C CN 100512051C
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Abstract
A message transmitted from a base station to a plurality of mobile stations in a wireless network providing broadcast multicast services includes one or more fields providing configuration information associated with multicast services deployed on each frequency in the coverage area of the base station and a flag indicating whether the message includes all of the one or more fields or only select ones of the one or more fields having updated configuration information.
Description
Technical field
The present invention relates generally to a kind of wireless network, particularly a kind of apparatus and method that are used for reducing the load on the paging channel that wireless network is used for BroadCast MultiCast Service (BCMCS).
Background technology
Early stage code division multiple access (CDMA) network such as the IS-95 network only carries the very data service of a small amount of.Yet, be designed to carry the many loads of data traffic of recuperation such as the third generation wireless network of IS-2000 (being also referred to as CDMA2000).The IS-2000 network can provide high-speed data service and speech business effectively.Yet other network such as 1x EV-DO network mainly is a data system.If the network of these types is used to voice-and-data, so general on the channel adjacent with data service voice-bearer.Yet IS-2000 (being the C version of CDMA2000) is with identical carriers carry voice-and-data.
BCMCS (BroadCast MultiCast Service) is a type of the new data service carried out in comprising the third generation wireless network of IS-2000 network of wireless supplier.Can expect that BCMCS will become the representative of the highly significant of next edition wireless standard.In multi-case data broadcasting, all wireless terminals in the overlay area of wireless network base station send identical data content (for example, match score, weather forecast, news etc.).Network operator can adopt the network area of multi-case data transmission and the encryption of multi-case data transmission to control each multi-case data transmission to prevent undelegated access according to charging case, various user.
The user can be provided by the BCMCS business that is provided in many ways by service network, and these modes comprise from the information (for example, BSPM-broadcast service parameters message) of network reception about overhead channel.The configuration that is configured in all BCMCS business on each frequency in the BSPM Overhead Message carrying cellular-specific, the configuration of the BCMCS business that in adjacent cell, provides in addition.Along with the increase of the professional number of the BCMCS that is provided, BSPM may become quite long message.In addition, present IS-2000 standard needs BSPM of transmission in per at least 1.28 seconds.The length of message makes the possible load that significantly increases on paging (expense) channel of BSPM in conjunction with the result of transmission frequency.
In addition, when the initial updating cost information of mobile radio station, tediously long broadcast service parameters message may cause up to 5 seconds delay goes to upgrade BSPM information.And, in a lot of situations, on BSPM, sent identical redundant information, thereby cause load that paging channel is unnecessary and the unnecessary processing of identical message being carried out by mobile radio station in per 1.28 seconds.
Therefore, need to limit paging load capacity and the system and method for avoiding BSPM being carried out unnecessary processing in the wireless network in the art by mobile radio station.Specifically, need reduce to transmit among the BSPM technology of the required expense of updated information.
Summary of the invention
The present invention will indicate that introducing described broadcast service parameters message (BSPM) still all is included among the described BSPM with the part of indication with configuration information.If described sign is set to first value (for example, logical zero), so described BSPM only comprises the field that has changed from described previous BSPM for its configuration information.If described sign is set to second value (for example, logical one), so described BSPM comprises all configuration information field.
In order to solve the defective of described prior art discussed above, main purpose of the present invention provide a kind of be used for wireless network can in the overlay area of base station, receive multi-case data transmission broadcasting mobile radio station, according to a preferred embodiment of the invention, described mobile radio station comprises: (i) transceiver, can be from described base station receiving broadcast service parameter message, wherein said broadcast service parameters message can provide information to described mobile radio station with one or more fields; (ii) memory can be stored the described information that is sent in the described field of described broadcast service parameters message; (iii) processor can read the value of the sign in the described broadcast service parameters message, and covers the relevant described information of the selection field with in the described field in the described memory based on the described value of described sign.
According to one embodiment of present invention, when described sign is set to first value, described broadcast service parameters message only comprises the described selection field of lastest imformation that has, and described processor can also cover the described information relevant with described selection field with described lastest imformation, and the relevant described information of other field of the described field in maintenance and the described memory.
According to another embodiment of the invention, described broadcast service parameters message also comprises the message sequence field of the sequence number of the described broadcast service parameters message of indication in the broadcast service parameters message sequence, when described broadcast service parameters message comprises described lastest imformation, message sequence field is increased progressively.
According to another embodiment of the invention, when described sign was set to second value, the described selection field that is included in the described broadcast service parameters message comprised all described fields.
According to another embodiment of the invention, described information be with the overlay area that is configured in described base station in each frequency on the relevant configuration information of multicast service.Described information can also comprise with the overlay area that is configured at least one adjacent base station in each frequency on the relevant configuration information of multicast service.
According to a further advantageous embodiment of the invention, provide a kind of be used for wireless network can be to the base station of a plurality of mobile radio station broadcast multi-broadcasting transfer of data, described base station comprises: transceiver, can send broadcast service parameters message to described a plurality of mobile radio stations, wherein said broadcast service parameters message comprises sign and can provide information to described a plurality of mobile radio stations with one or more fields; And controller, the value of described sign can be set, and only the selection field in described one or more fields be included in the described broadcast service parameters message based on the value of described sign.
According to another embodiment of the invention, sent once described broadcast service parameters message in per at least 1.28 seconds.
According to another embodiment of the invention, on paging channel, send broadcast service parameters message.
According to another embodiment of the invention, described controller can also be based on the described value that described sign number is set of the new BroadCast MultiCast Service registration of being undertaken by described mobile radio station of having write down since previous transmission broadcast service parameters message.
According to another embodiment of the invention, described controller can also be provided with the value of described sign based on timer, and when the described timer of initialization, described sign is set to first value, and when described timer stopped, described sign was set to second value.
According to another embodiment of the invention, described controller also comprises the value that described sign can be set based on the quantity of the lastest imformation that receives with the described base station of cause since previous transmission broadcast service parameters message.
Before following describing the present invention, it may be favourable that the definition that runs through employed certain words of this patent file and phrase is set forth: term " comprises " and also has " comprising " their the derivative meaning is to comprise rather than limit; Term " or " comprise, the meaning be and/or; Phrase " with ... relevant " and " relative " also have their the derivative meaning be comprise, be included in wherein, with ... interconnected, comprise, be included in wherein, be connected to ..., with ... link to each other, be coupled to ..., with ... coupling, that can exchange, and ... cooperate, interweave, side by side, approaching, will, have, have ... characteristic etc.; And term " controller " meaning is any equipment, system or its part of at least one operation of control, and such equipment can be realized with hardware, firmware or software or two identical with them at least certain combination.Should be noted that no matter being can be centralized or distributed in this locality or in functional relevant with any specific controller of far-end.Running through patent document of the present invention provides the definition of particular term and phrase, though one of ordinary skill in the art be to be understood that many be not in the maximum example, such definition is applied in the existing and following use of these defined terms and phrase.
Description of drawings
For complete understanding the present invention and its advantage, with reference now to following description taken together with the accompanying drawings, the wherein identical identical part of sign representative.
Fig. 1 illustrates the example wireless network of using broadcast-multicast service (BCMCS) in accordance with the principles of the present invention with effective means;
Fig. 2 illustrates the multi-case data transmission to a plurality of mobile radio stations in the wireless network among Fig. 1 according to an embodiment of the invention;
Fig. 3 illustrates in greater detail exemplary base according to an embodiment of the invention;
Fig. 4 illustrates in greater detail exemplary mobile radio station according to an embodiment of the invention;
Fig. 5 illustrates exemplary broadcast service parameters message according to an embodiment of the invention; With
Fig. 6 illustrates the flow chart of the transmit operation of broadcast service parameters message (BSPM) in accordance with the principles of the present invention.
Embodiment
In this patent file, below Fig. 1 to 6 of being discussed and describe the employed various embodiment of principle of the present invention and only be used for explanation, in any case can not be interpreted as it is restriction to scope of the present invention.One skilled in the art should appreciate that principle of the present invention can be implemented in any wireless network of compatibly arranging.
Fig. 1 illustrates the example wireless network 100 that adopts broadcast-multicast service (BCMCS) in accordance with the principles of the present invention with effective means.Wireless network 100 comprises a plurality of cells 121-123, and each comprises a base station among base station BS 101, BS 102 or the BS 103.Base station 101-103 is by communicating by letter with a plurality of mobile radio stations (MS) 111-114 according to the CDMA channel of IS-2000-C standard (being the C version of CDMA2000).Mobile radio station 111-114 can be any suitable wireless device, and comprising can be through traditional cellular radio of wireless link and base station communication, PCS handset apparatus, personal digital assistant, portable computer, remote-measuring equipment etc.
The invention is not restricted to mobile device.Can use other type wireless access terminal that comprises fixed radio terminal.For for simplicity, below only illustrate and discuss mobile radio station.Yet, should be appreciated that claim and below description in use term " mobile radio station " purpose to be to comprise true mobile device (for example, cell phone, wireless above-knee portable computer) and fixed radio terminal (surveillance equipment that for example has wireless capability).
Be shown in dotted line the border roughly of cells 121-123, base station 101-103 is arranged in cells 121-123.Only showing circle greatly for the description and interpretation honeycomb illustrates cells.It should be clearly understood that cells can be that other is irregularly shaped, this depends on structure and the nature and the artificial obstacle of selected honeycomb.
As known in the art, cells 121-123 is made up of a plurality of covering of the fans, is coupled to each covering of the fan of directive antenna radiation of base station in each covering of the fan.The embodiment of Fig. 1 illustrates the center that the base station is positioned at honeycomb.Alternative embodiment is placed on directive antenna in the corner of covering of the fan.System of the present invention is not limited to any particular cell site configuration.
In an embodiment of the present invention, BS 101, BS 102 and BS 103 comprise base station controller (BSC) and at least one BTS under CROS environment (BTS).Base station controller and BTS under CROS environment are known for those skilled in the art.Base station controller is the equipment that comprises the wireless communication resources of BTS under CROS environment for the honeycomb management of appointment in the wireless communications environment.Base transceiver subsystem comprises RF (radio frequency) transceiver, antenna and other electronic equipment that is arranged in each cells.This equipment may comprise air-conditioning unit, heating unit power supply, telephone line interface and RF sender and RF receiver.For explain operation of the present invention easy and clear for the purpose of, the BTS under CROS environment in each honeycomb in the honeycomb 121,122 and 123 is represented respectively by BS 101, BS 102 and BS 103 jointly with the base station controller relevant with each BTS under CROS environment.
BS 101, BS 102 and BS 103 transmit the voice-and-data signal each other and between order wire 131 and (MSC) 140 of mobile switching centre and public switch telephone network (PSTN) (not shown).BS101, BS 102 and BS 103 also transmit the data-signal such as grouped data between order wire 131 and packet data serving node (PDSN) 150 and the Internet (not shown).The stream of the packet between Packet Control Function (PCF) unit 190 control base station 101-103 and the PDSN 150.PCF unit 190 can be implemented as a part or the part of base station 101-103 or the independent equipment of communicating by letter with PDSN 150 as shown in Figure 1 of PDSN 150.It is the control signal that the voice-and-data circuit connects to be used between MSC 140 and BS 101, BS 102 and BS 103 in transmission between MSC 140 and BS101, BS 102 and the BS 103 that line 131 also provides access path.
MSC 140 is for wireless network with such as switching equipment professional and that coordinate is provided between the user in the external network of PSTN or the Internet.140 couples of those skilled in the art of MSC are known.In some embodiments of the invention, order wire 131 can be several different data links, and wherein each data link is coupled to MSC 140 with one among BS 101, BS 102 or the BS 103.
In the embodiment of wireless network shown in Figure 1 100, MS 111 is arranged in cells 121 with MS 112 and communicates by letter with BS 101.MS 113 is arranged in cells 122 and communicates by letter with BS 102, and MS 114 is arranged in cells 123 and communicates by letter with BS 103.MS 112 is positioned near the edge of cells 123 and to the direction of cells 123 and moves, and is indicated as the direction arrow near MS 112.On certain point,, switch along with MS 112 moves into cells 123 and shifts out cells 121.
As known for the skilled artisan, handoff procedure is from the control of first honeycomb to second honeycomb transmission calling.Switching can be that " soft " switches or " firmly " switches.In soft handover, before disconnecting, the existing connection between the base station in the mobile radio station and first honeycomb sets up the connection between the base station in the mobile radio station and second honeycomb.In direct-cut operation, set up the existing connection between the base station that disconnects before newly connecting in the mobile radio station and first honeycomb between the base station in the mobile radio station and second honeycomb.
Along with MS 112 shifts to honeycomb 123 from honeycomb 121, MS 112 detects from the pilot signal of BS 103 and to BS 101 and sends Pilot Strength Measurement Message.When sending by BS 103 and receive and the pilot frequency intensity of report when surpassing threshold value by MS 112, as BS 101 as described in TIA/EIA IS-95 or the TIA/EIA IS-2000 by starting soft switching process to its switching that needs of target BS 103 signalings.
BS 103 and MS 112 continue to consult to set up communication linkage in CDMA Channel.Along with the foundation of the communication linkage between BS 103 and the MS 112, MS 112 communicates by letter with BS 103 with BS 101 with soft handoff mode.Those skilled in the art will recognize that soft handover improves the performance of forward direction (BS is to MS) channel and reverse (MS is to BS) channel link.When the signal from BS 101 drops to the predetermined signal strength threshold value when following, MS 112 can abandon thereupon with BS 101 link and receive only signal from BS 103.Thereby will call out from BS 101 and seamlessly be delivered to BS 103.Above-mentioned soft handover hypothesis mobile radio station is in the voice and data call.Idle switch be controlling or paging channel in switching between the cells of the base station of communicating by letter.
According to principle of the present invention, be operated in mobile radio station in the wireless network 100 and can receive multi-case data transmission broadcasting on the shared Traffic Channel.For example, in the embodiment of IS-2000, each among the BS 111-113 can send and BS 111-113 in each can receive multi-case data transmission in forward packet data channel (F-PDCH) or forward supplemental channel (F-SCH) or the above two kinds of channels.
Fig. 2 illustrates the multi-case data transmission to a plurality of mobile radio stations in the wireless network 100 according to an embodiment of the invention.Illustrate in greater detail base station 101.Base station 101 comprises six BTS under CROS environment that are masked as BTS1, BTS2, BTS3, BTS4, BTS5, BTS6.Only for description and interpretation, the cells 121 of base station 101 is illustrated (rather than circle shown in Figure 1) with hexagon.Does each BTS under CROS environment (BTS) use three-antenna sector, wherein three covering of the fans (covering of the fan α, covering of the fan β, covering of the fans?) in each covering of the fan cover the arcs of 120 degree.The area coverage of each BTS illustrates with triangle.Six triangles form the hexagonal coverage area of base station 101.
In Fig. 2, broadcast three exemplary multicast data streams (transmission).The covering of the fan of BTS2 is to mobile radio station 201 and the transmission of 202 broadcasting, first multi-case data.The covering of the fan of BTS 1 is also to the mobile radio station 201 first multi-case data transmission identical with 202 broadcasting.Two different covering of the fans of BTS 1 are to the transmission of mobile radio station 203 broadcasting first multi-case data.At last, the covering of the fan of BTS 1 covering of the fan and BTS 6 is to the transmission of mobile radio station 204 broadcasting first multi-case data.
Two different covering of the fans of BTS 6 are to the transmission of mobile radio station 205 broadcasting second multi-case data.The covering of the fan of BTS 6 is to the transmission of mobile radio station 206 broadcasting second multi-case data.At last, BTS 5 covering of the fan is also to the transmission of mobile radio station 206 broadcasting second multi-case data.
The covering of the fan of BTS 3 is to the transmission of mobile radio station 207 broadcasting the 3rd multi-case data.At last, BTS 4 covering of the fan is also to the transmission of mobile radio station 207 broadcasting the 3rd multi-case data.
Because BTS 1-BTS 6 uses the Traffic Channel of sharing broadcasting first, second and the 3rd transfer of data, so at least some mobile radio stations among the mobile radio station 201-207 receive from the multi-case data transmission more than a BTS.This has strengthened the receptivity of mobile radio station and has received from the handover operation of the forward channel signal of two or more BTS under CROS environment similar with cdma mobile station.
Each multi-case data transmits corresponding to a kind of by specific broadcast multi-broadcasting (BCMC) business that provides such as content suppliers such as CNN, HBO, NBC.Every kind of business has a plurality of BCMC streams.For example, CNN can provide a not homogeneous turbulence that is used for stream, a not homogeneous turbulence that is used for auditory effect of visual effect and is used for close-captioning.All stream both can also can be on different Traffic Channels on identical Traffic Channel (or frequency).
On paging (expense) channel of BTS1, with broadcast service parameters message (BSPM) configuration information is broadcast to mobile radio station 201,202,203 and 204, this configuration information for each mobile radio station (for example, mobile radio station 201,202,203 and 204) be necessary, this mobile radio station is for (the every kind of BCMC business that for example, is disposed on each frequency in overlay area BTS1) receives all stream at the particular base transceiver site station.In addition, in order to handle autonomous switching (autonomous handoff), the configuration information of the BCMC business that is provided by neighbor base transceiver stations station (for example, BTS2 and BTS3) at least also can be provided BSPM.
Fig. 3 illustrates in greater detail the exemplary base 101 according to the embodiment of the invention.Base station 101 comprises base station controller (BSC) 310 and base station transceiver station (BTS) 320.Before base station controller and base station transceiver station were described in conjunction with Fig. 1 and 2.The resource that comprises BTS 320 in the BSC 310 managing cellular websites 121.BTS 320 comprises BTS controller 325, channel controller 335 (it comprises representational channel elements 340), transceiver interface (IF) 345, RF transceiver unit 350, aerial array 355 and BSP (broadcasting service parameter) messaging controller 360.
BTS controller 325 comprises the treatment circuit system and the memory of the operation sequence of the whole operations that can carry out control BTS 320, and communicates by letter with BSC 310.Under normal operation, the operation of BTS controller 325 command channel controllers 335, channel controller 335 comprises some channel elements that comprise channel elements 340, and these channel elements are communicated by letter with execution twocouese in the backward channel in forward channel." forward direction " channel refers to the output signal from the base station to the mobile radio station, and " oppositely " channel refers to the input signal from the mobile radio station to the base station.Transceiver IF 345 transmits the twocouese channel signal between channel controller 340 and RF transceiver unit 350.
The mobile radio station of aerial array 355 in the overlay area of BS 101 sends the forward channel signal that receives from RF transceiver unit 350.Aerial array 355 also sends the reverse channel signals that the mobile radio station from the overlay area of BS 101 receives to transceiver 350.In preferred embodiment of the present invention, aerial array 355 is many antenna sector, is responsible for the three-antenna sector that sends and receive in 120 arcs of spending of overlay area such as each sector antenna.In addition, transceiver 350 can comprise the antenna selected cell to select in the different antennae in aerial array 355 in transmission and reception operating period.
For example, according to embodiments of the invention, aerial array 355 can be on paging (expense) channel sends a broadcast service parameters message (BSPM) in per at least 1.28 seconds.Broadcast service parameters message comprises and is used for providing sign and one or more field about the information of the BCMC business on each frequency of the overlay area that is configured in BTS 320 to mobile radio station.BSPM is constructed based on the data of being collected by BSP messaging controller 360 by BSP messaging controller 360.
For example, in one embodiment, described data can comprise the configuration information new and that upgraded from one or more content providers, BSC 310, MSC 140, other network equipment or network operator.If the amount of new and configuration information that upgraded surpasses bigger or equal 0 threshold value than 0, BSP messaging controller 360 described signs are set to indicate BSPM to comprise first value of all described fields, use professional all the required configuration informations of BCMC so that mobile radio station can receive.Otherwise BSP messaging controller 360 described signs are set to second value, and include only that those are used for having received since sending previous BSPM new and the field of updated information.
When in another embodiment, the data of being collected by BSP messaging controller 360 can be included in the value that described sign is set by BSP messaging controller 360 employed any kind data.For example, in one embodiment, BSP messaging controller 360 record is since the number of times that sends new broadcast multi-broadcasting (BCMC) service log-on that previous broadcast service parameters message done with the cause mobile radio station, and uses this information that the value of described sign is set.If the number of times of new BCMC service log-on surpasses bigger or equal 0 threshold value than 0, BSP messaging controller 360 described signs are set to indicate BSPM to comprise first value of all described fields so, use professional all the required configuration informations of BCMC so that the mobile radio station of new registration can receive.Otherwise BSP messaging controller 360 described signs are set to second value, and include only that those are used for having received since sending previous BSPM new and the field of updated information.
As another example, in another embodiment, BSP messaging controller 360 initialization timing devices, and the value of use timer is provided with the value of described sign.When timer stopped, BSP messaging controller 360 described signs were set to indicate BSPM to comprise first value of all described fields, used professional all the required configuration informations of BCMC so that the mobile radio station of new registration can periodically receive.Otherwise when if timer does not also stop, BSP messaging controller 360 described signs are set to second value, and include only those for received since sending previous BSPM new and the field of updated information.
Fig. 4 illustrates the wireless mobile 201 according to the embodiment of the invention.Wireless mobile 201 comprises antenna 405, radio-frequency (RF) transceiver 410, transmission (TX) treatment circuit system 415, loudspeaker 420 and receives (RX) treatment circuit system 425.MS 201 also comprises loud speaker 430, primary processor 440, I/O (I/O) interface (IF) 445, user interface 450, display 455 and memory 460.Memory 460 also comprises basic operating system 461 and BCMCS (BroadCast MultiCast Service) configuration information 462.
Radio frequency (RF) transceiver 410 is from the input multi-case data transmission (RF signal) of antenna 405 receptions by the base station broadcast of wireless network 100.Radio frequency (RF) transceiver 410 changes input signal to produce intermediate frequency (IF) or baseband signal downwards.IF or baseband signal are sent to receiver (RX) treatment circuit system 425, and it is by producing the baseband signal of having handled to base band or IF signal filtering, decoding and/or digitlization.The baseband signal that receiver (RX) treatment circuit system 425 will handle sends to loud speaker 430 (being speech data) or sends to primary processor 440 further to handle (for example, net is browsed)
Sender (TX) treatment circuit system 415 receives the analog or digital speech data or receives other output base band data (for example, netting index certificate, e-mail, interactive video-frequency performance data) from primary processor 440 from loudspeaker 420.415 pairs of sender (TX) treatment circuit systems output base band data encodes, multiplexing and/or digitlization to be to produce base band or the IF signal of having handled.Radio frequency (RF) transceiver 410 receives the base band of having handled or the IF signal of output from sender (TX) treatment circuit system 415.Radio frequency (RF) transceiver 410 upwards converts base band or IF signal to be sent out through antenna radio frequency (RF) signal.
In a preferred embodiment of the invention, primary processor 440 is microprocessor or microcontroller.Memory 460 is coupled to primary processor 440.According to a preferred embodiment of the invention, the part of memory 460 comprises that another part of random access storage device (RAM) and memory 460 comprises flash memory, and it is as read-only memory (ROM).
For example, in one embodiment, described sign can be set to indicate current BSPM to comprise first value of all fields of BSPM.If described sign is set to first value (for example " 0 "), primary processor 440 is fetched the BCMCS configuration information from current BSPM so, and rewrites the existing BCMCS configuration information 462 that is stored in the memory 460.In another embodiment, described sign can be set to second value, and it has indicated current BSPM only to comprise to have the new and selection field of updated information since receiving previous BSPM.If described sign is set to second value (for example " 1 "), primary processor 440 is fetched updated information from current BSPM so, and the rewriting existing BCMCS configuration information 462 relevant with selected field.The BCMCS configuration information relevant with other field that is not included in current BSPM is maintained in the memory 460 and do not make an amendment.
Another field in the field can be the message sequence field of the sequence number of identification BSPM in BSPM stream.For example, if BSPM comprises that at least one has new and field configuration information that upgraded, message sequence field can increase progressively from the preceding value the BSPM of previous reception so.As mentioned above, when message sequence field was incremented, primary processor 440 can be recognized new BSPM and be included among the BSPM and to BSPM and handle.Therefore yet if do not comprise fresh information among the BSPM, and message sequence field does not increase progressively, and primary processor 440 can also be recognized does not so have fresh information to comprise in BSPM and ignore or abandon BSPM and do not process.
Fig. 5 illustrates example message 500 according to an embodiment of the invention.Message 500 shown in Fig. 5 is by the broadcast service parameters message (BSPM) of base station by the mobile radio station broadcasting of paging (expense) channel within the coverage of base station.BSPM 500 has been modified to comprise that indication BSPM comprises that all fields still include only and comprises new and the sign of the selection field of updated information.
Except other field as known in the art (for the sake of brevity, not shown) outside, BSPM 500 comprises PILOT_PN field 501, CONFIG_MSG_SEQ field 502, AUTO_REQ_ALLOWED_IND field 503, CLEAR_OLD_RECORD field 504, NUM_FBSCH field 505, NUM_BCMCS_SESSION field 506, FBSCH_RECORD_LEN field 507, FBSCH_RECORD_ID field 508, BCMCS_FLOW_ID_LEN_ID field 509 and BCMCS_FLOW_ID field 510.PILOT_PN field 501 has the length of 9 bits and message 500 is designated expense (paging) channel BSP message.
The diagram 600 that Fig. 6 describes to flow, its illustrate according to principle of the present invention by base station (for example, the transmit operation of the broadcast service parameters message of BS101) carrying out (BSPM).Beginning, BS 101 is configured in the configuration information (process steps 601) of the BCMC business in the overlay area of BS 101.If comparing with the configuration information of previous reception, configuration information do not comprise any new or updated information (the N branch of determining step 602), BS 101 is set to the sign (CLEAR_OLD_RECORD field) of current BSPM to indicate and only comprises first value (for example, logical zero) (process steps 603) of selecting field among the current BSPM so.In addition, BS 101 is increment message sequence (CONFIG_MSG_SEQ) field (process steps 604) not, thereby indicates current BSPM not comprise any configuration information field (process steps 605).Afterwards, BS 101 finishes the structure of current BSPM and format, and to sending current BSPM (process steps 606) by 101 mobile radio stations of serving of BS.
Comprise any new or updated information (the Y branch of determining step 602) if configuration information is compared with the configuration information of previous reception, BS 101 determines still to be that all fields are included in (determining step 607) among the current BSPM with information for its those fields that changed only in conjunction with the described method of Fig. 3 more than using so.If BS 101 determines only to select field to be included in (the N branch of determining step 607) among the current BSPM, BS 101 is set to the sign (CLEAR_OLD_RECORD field) of current BSPM to indicate and only comprises first value (for example, logical zero) (process steps 608) of selecting field among the current BSPM so.In addition, BS 101 increment message sequence (CONFIG_MSG_SEQ) fields (process steps 609), and will be included in (process steps 610) among the current BSPM for its selection field that has changed configuration information.Afterwards, BS 101 finishes the structure of current BSPM and format, and to sending current BSPM (process steps 611) by 101 mobile radio stations of serving of BS.
If BS 101 is included in (the Y branch of determining step 607) among the current BSPM with all fields, BS 101 is set to indicate second value (for example, logical one) (process steps 612) that comprises all fields among the current BSPM with the sign (CLEAR_OLD_RECORD field) of current BSPM so.In addition, BS 101 increment message sequence (CONFIG_MSG_SEQ) fields (process steps 613).Afterwards, BS101 finishes structure and the format to current BSPM by comprising all configuration information field, and to sending current BSPM (process steps 614) by BS 101 current mobile radio stations of serving.At least repeated once this process in per 1.28 seconds.
Invention has been described although used exemplary embodiment, may advise various changes and modification to those of skill in the art.Be intended that and the present invention includes change and the modification that drops in the claims scope.
Claims (24)
1. the multi-case data that can receive in the overlay area of base station that is used for wireless network transmits the mobile radio station of broadcasting, and described mobile radio station comprises:
Transceiver can be from described base station receiving broadcast service parameter message, and described broadcast service parameters message can provide information to described mobile radio station with one or more fields;
Memory can be stored the described information that is sent in the described field of described broadcast service parameters message; With
Processor can read the value of the sign in the described broadcast service parameters message, and covers the relevant described information of the selection field with in the described field in the described memory based on the described value of described sign,
Wherein, described broadcast service parameters message only comprises the described selection field of lastest imformation that has, and wherein when described sign was set to first value, described processor can also cover the relevant described information of other field of described information relevant with described selection field and the described field in maintenance and the described memory with described lastest imformation.
2. mobile radio station as claimed in claim 1, wherein, described broadcast service parameters message also comprises the message sequence field of the sequence number of the described broadcast service parameters message of indication in the broadcast service parameters message sequence, when described broadcast service parameters message comprises described lastest imformation, message sequence field is increased progressively.
3. mobile radio station as claimed in claim 2 wherein, when described broadcast service parameters message does not comprise described lastest imformation, does not increase progressively message sequence field.
4. mobile radio station as claimed in claim 1, wherein, when described sign was set to second value, the described selection field that is included in the described broadcast service parameters message comprised all described fields.
5, mobile radio station as claimed in claim 1, wherein, described information be with the described overlay area that is configured in described base station in each frequency on the relevant configuration information of multicast service.
6, mobile radio station as claimed in claim 5, wherein, described information also comprise with the overlay area that is configured at least one adjacent base station in each frequency on the relevant configuration information of multicast service.
7, a kind of be used for wireless network can be to the base station of a plurality of mobile radio station broadcast multi-broadcasting transfer of data, described base station comprises:
Transceiver can send broadcast service parameters message to described a plurality of mobile radio stations, and described broadcast service parameters message comprises sign and can provide information to described a plurality of mobile radio stations with one or more fields; With
Controller can be provided with the value of described sign, and only the selection field in described one or more fields is included in the described broadcast service parameters message based on the described value of described sign,
Wherein, when described sign was set to first value, described broadcast service parameters message only comprised the described described selection field of lastest imformation that has.
8, base station as claimed in claim 7, wherein, described broadcast service parameters message also comprises the message sequence field of the sequence number of the described broadcast service parameters message of indication in the broadcast service parameters message sequence, when described broadcast service parameters message comprises described lastest imformation, message sequence field is increased progressively.
9, base station as claimed in claim 8 wherein, when described broadcast service parameters message does not comprise described lastest imformation, does not increase progressively message sequence field.
10, base station as claimed in claim 7, wherein, when described sign was set to second value, the described selection field that is included in the described broadcast service parameters message comprised all described one or more fields.
11, base station as claimed in claim 7, wherein, described information be with the described overlay area that is configured in described base station in each frequency on the relevant configuration information of multicast service.
12, base station as claimed in claim 11, wherein, described information also comprise with the overlay area that is configured at least one adjacent base station in each frequency on the relevant configuration information of multicast service.
13, base station as claimed in claim 7, wherein, the per at least 1.28 seconds once described broadcast service parameters message of transmission.
14, base station as claimed in claim 7 wherein, sends described broadcast service parameters message on paging channel.
15, base station as claimed in claim 7, wherein, described controller can also be based on the described value that described sign is set with the sequence number of the new BroadCast MultiCast Service registration of the described mobile radio station record of cause since previous transmission broadcast service parameters message.
16, base station as claimed in claim 7, wherein, described controller can also be provided with the described value of described sign based on timer, when the described timer of initialization, described sign is set to first value, and when described timer stopped, described sign was set to second value.
17, base station as claimed in claim 7, wherein, described controller also comprises can be based on the described value that described sign is set with the quantity of the lastest imformation of cause described base station reception since previous transmission broadcast service parameters message.
18, a kind of a plurality of mobile radio stations that reduce in wireless network in the coverage of base station provide the method for the load on the paging channel of described base station of BroadCast MultiCast Service, and this method may further comprise the steps:
The value of the sign of broadcast service parameters message is set, and described broadcast service parameters message can provide information to mobile radio station with one or more fields;
Value based on described sign only is included in the selection field in described one or more fields in the described broadcast service parameters message; With
The described broadcast service parameters message that on paging channel, sends to described mobile radio station,
Wherein, the described step that comprises also comprises:
When described sign is set to first value, only comprise the described described selection field of lastest imformation that has.
19, method as claimed in claim 18, further comprising the steps of:
When described broadcast service parameters message comprised lastest imformation, message sequence field that will the sequence number of the described broadcast service parameters message of indication in the broadcast service parameters message sequence increased progressively.
20, method as claimed in claim 19, further comprising the steps of:
When described broadcast service parameters message does not comprise described lastest imformation, keep the currency of message sequence field.
21, method as claimed in claim 18, wherein, the described step that comprises also comprises:
When described sign is set to second value, all described one or more fields are included in the described broadcast service parameters message.
22, method as claimed in claim 18, wherein, the described step that is provided with also comprises:
The described value of described sign is set based on the sequence number of the new BroadCast MultiCast Service registration of having write down since described previous transmission broadcast service parameters message.
23, method as claimed in claim 18, wherein, the described step that is provided with also comprises:
Based on timer the described value of described sign is set, when the described timer of initialization, described sign is set to first value, and when described timer stopped, described sign was set to second value.
24, method as claimed in claim 18, wherein, the described step that is provided with also comprises:
Based on the described value that described sign is set with the amount of the lastest imformation of cause described base station reception since described previous transmission broadcast service parameters message.
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| US50016003P | 2003-09-04 | 2003-09-04 | |
| US60/500,160 | 2003-09-04 | ||
| US10/899,566 | 2004-07-27 |
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| CN100512051C true CN100512051C (en) | 2009-07-08 |
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| CNB200480001198XA Expired - Fee Related CN100512051C (en) | 2003-09-04 | 2004-09-03 | Apparatus and method for reducing paging channel loading for broadcast multicast services in a wireless network |
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| CN100391277C (en) * | 2006-03-29 | 2008-05-28 | 华为技术有限公司 | Monitoring method for notifying channel load |
| US8229423B2 (en) | 2006-08-22 | 2012-07-24 | Qualcomm Incorporated | Broadcast and multicast services in wireless communication systems |
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