CN101322337A - Methods and apparatus for determining, communicating and using information including loading factors for interference control - Google Patents

Abstract

A wireless terminal receives and measures broadcast reference signals, e.g., beacon and/or pilot signals, transmitted from a plurality of base station attachment points. The wireless terminal monitors for and attempts to recover broadcast loading factor information corresponding to attachment points. The wireless terminal generates and transmits an interference report to a current attachment point, the report based on the results of a measured received reference signal from the current attachment point, a measured received reference signal from each of one or more different attachment points, and uplink loading factor information. In the absence of a successfully recovered broadcast uplink loading factor corresponding to an attachment point, the wireless terminal uses a default value for that loading factor. Generated interference reports are based on beacon signal measurements and uplink loading factors, pilot signal measurements and uplink loading factors, or a mixture of beacon and pilot signal measurements and uplink loading factors.

Description

Be used to determine, transmit and use the method and apparatus that comprises the on-load factor that is used for Interference Control

Advocate priority according to 35U.S.C. § 119

The application's case is advocated U.S. Provisional Patent Application case S.N.60/792, No. 128 date of application is the right that is entitled as " being used to determine; transmit; reach the method and apparatus (METHODS AND APPARATUS FOR DETERMINING; COMMUNICATING AND USINGINFORMATION WHICH CAN BE USED FOR INTERFERENCE CONTROL PURPOSES) that uses the information that can be used for the Interference Control purpose " of application on April 14th, 2006, and be the U.S. patent application case the 11/251st of application on October 14th, 2005, No. 069 the part case that continues, and be the U.S. patent application case S.N.11/302 of application on December 14th, 2005, No. 729 the part case that continues, each described application case all clearly is incorporated herein by reference.

Technical field

The present invention relates to wireless communication system, and more particularly, relate in wireless communication system the method and apparatus of collecting, measure, report and/or use the information that can be used for the Interference Control purpose.

Background technology

In wireless multiple-access communication system, wireless terminal contention system resource is so that communicate by letter with shared receiver on uplink channel.The example of this situation is the uplink channel in the cellular radio system, and wherein wireless terminal is transferred to base station receiver.When wireless terminal transmitted on uplink channel, it caused interference to whole system (for example, adjacent base station receiver) usually.Because wireless terminal disperses, so control is challenge by the interference that its transmission produces.

Many cellular radio systems take simple strategy to control uplink channel interference.For instance, the CDMA voice system (for example, IS-95) comes wireless terminal is carried out power control so that the signal of wireless terminal is sentenced the mode that roughly the same power receives at base station receiver.For example the cdma system of the prior art of 1xRTT and 1xEV-DO allows wireless terminal to sentence the different capacity reception with the different rates transmission and in the base station.Yet, disturbing with dispersing mode control, it reduces total interference level and inaccuracy is controlled those wireless terminals for the poorest interference source in the system.

The existing body of this of interference control method has limited the uplink capacity of wireless system.

If the base station can possess the information that can be used for determining the interference volume that the signal interference volume that will produce and/or definite wireless terminal may meet with because signal disturbs when transmission takes place in neighbor cell and/or sector, then it will be for useful.If can be used for disturbing definite information to be fed to the base station by one or more wireless terminals, then it will be for especially desirable.

From wireless terminal when interfere information is transmitted in the base station, one type be reported in a special time than can more preferably being fit at another special time place.The method and apparatus that adapts to multiple different interference Report Types will be useful.Along with kind increases, control signaling overhead can increase usually to support and to transmit available potential option.Make the signaling overhead keep relatively low if method and apparatus is directed to, and support a plurality of jamming reports to change simultaneously, then it will be for useful.

Summary of the invention

Each embodiment is directed to the method and apparatus that is used to collect, measure, report and/or use the information that can be used for the Interference Control purpose.

In each embodiment, wireless terminal receives the request of broadcast uplink jamming report, and it transmits the Report Type and/or the base station identification information of being asked, for example, and local unique base station identifiers of for example local unique cell identifier value.For instance, in an one exemplary embodiment, the set report request that is used for a plurality of wireless terminals of base station attachment point broadcasting, described a plurality of wireless terminals use described base station attachment point as its current service attachment point.

Wireless terminal also receives and measures from the broadcasting reference signal of a plurality of base stations attachment point transmission, for example, and beacon and/or pilot signal.Beacon signal can be narrow band signal, for example, and monotone (single tone).Beacon signal can have one, duration of two or more symbol transmission time periods (for example, OFDM symbol transmission time periods).Yet, can use the beacon signal of other type, and the particular type of beacon signal is not critical to the present invention.

The dissimilar reports of asking comprise particular type jamming report (being known as special report sometimes) and universal class jamming report.In an one exemplary embodiment, if the jamming report value request is first value, for example 0, then request is at general report, if and the report value request in one group of predetermined value except that described first value (for example, one group of positive integer value) in, then request is at particular report, and the selection of base stations attachment point that is ready to use in the particular report has corresponding to the base station identifiers of reporting value request.

The connection base station attachment point that the particular type jamming report makes current service is relevant with selected base station attachment point corresponding to the reception base station identifiers.It is relevant with other unspecified base station attachment point (its broadcasting reference signal is detected by wireless terminal) that the universal class jamming report makes current serving BS connect attachment point.In certain embodiments, for the universal class jamming report, described report at the Current Serving BTS attachment point uncertain know when producing report, use which or which certain base station attachment point.The subtype of general report comprises to be utilized summing function to produce the report of report and utilizes max function to produce the report of report.

In certain embodiments, use time sequence information to determine report subtype sometimes.For instance, in an one exemplary embodiment, with circulation sequential segmentation of structures for during this period general when being reported in transmission be the report of summing function type time and during this period general be the time of max function type report when being reported in transmission.For instance, in certain embodiments, replace between the continuous beacon slot (beaconslot) of report subtype in circulation scheduled timing structure.This scheduled timing structure helps the general report of (for example) two seed categories.In certain embodiments, be used to report that the sequential organization of subtype mapping relations is that wireless terminal and current service sector attachment point are known, and therefore do not need extra overhead control signaling to distinguish two kinds of report subtypes, thereby discharge valuable air link resources and be used for other purpose, for example, be used to transmit user data.

In some embodiment (for example, adopting some embodiment of at least some multi-sector cells), use time sequence information to be identified for the sectors type of the selected attachment point of particular type jamming report of asking.For instance, in an one exemplary embodiment, use three kinds of different sectors type, structure replaces in predetermined circulation sequential organization the sectors type of the base station section attachment point that the report of particular type report is consequently selected.In some described embodiment, the sectors type that wireless terminal is determined from institute's base station identifiers that receives of report request and the time that is received described request by described wireless terminal by combination is determined to be ready to use in asks the selected attachment point of particular type in reporting.

As previously discussed, in each embodiment, the base station identifiers that transmits in downlink broadcasting report request signal is local unique identifier, for example, and local unique cell identifier.In addition, in certain embodiments, transmit sector identifier via the request signal sequential.In each embodiment, understand carrier wave or tone block (tone block) identifier, for example, it is identical with employed carrier wave of current service sector attachment point or tone block identifier, and its signaling in report is asked specifically.Therefore identification is ready to use in the overhead control signaling of the selected attachment point in the specific request jamming report from its amount minimizing originally required under the situation of the unique base station of identifier transmission system attachment point identifiers.By using less bits to transmit described request, preserve valuable air link resources and be used for other purpose, for example, be used to transmit user data.

Wireless terminal produces institute and asks (for example to report, in particular report, the general report of summing function type and the general report of max function type one), and institute is produced report be transferred to current connection attachment point, described attachment point (for example) is sent request via being assigned to wireless terminal for its special-purpose up link Dedicated Control Channel section.

Though in above summary of the invention, discussed each embodiment, should be appreciated that, needn't comprise same characteristic features by all embodiment, and more above-described features are unnecessary but can be desirable in certain embodiments.In execution mode subsequently, discuss numerous additional features of the present invention, embodiment and benefit.

Description of drawings

Fig. 1 is the graphic of the example wireless communication system implemented according to each embodiment.

Fig. 2 shows the example of the base station of implementing according to each embodiment.

The wireless terminal that Fig. 3 explanation is implemented according to each embodiment.

Fig. 4 explanation is according to the system of each embodiment, and wherein wireless terminal is connected to the relative gain that base station section and measurement are associated with a plurality of interference base stations.

Fig. 5 is for illustrating the measuring-signal energy according to each embodiment, definite flow chart that gains and the method for jamming report is provided.

Fig. 6 illustrates uplink traffic channel and is contained in wherein section.

Fig. 7 explanation can be by the base station in order to be assigned to uplink traffic channel segments the appointment of wireless terminal.

Fig. 8 shows the example communications system of implementing according to each embodiment.

Fig. 9 comprises according to exemplary power conversion factor form of the invention process.

Figure 10 is included in the exemplary uplink loading factors form that is used to produce jamming report among each embodiment.

Figure 11 is the form of explanation according to the exemplary format that is used for exemplary jamming report (for example, beacon ratio report) of each embodiment.

Figure 12 is the graphic of exemplary Orthodoxy Frequency Division Multiplex (OFDM) wireless communication system (for example, OFDM SSMA wireless communication systems) implemented according to each embodiment.

Figure 13 illustrates the example system of Figure 12 and provides each additional detail corresponding to base station section so that various features to be described.

Figure 14 is the graphic of the example system described in Figure 12 and Figure 13, and it comprises the exemplary signaling that received and handled by wireless terminal to be used to illustrate the exemplary beacon ratio method for reporting according to each embodiment.

Figure 15 is the graphic of the example system described in Figure 12 and Figure 13, and it comprises the exemplary signaling that received and handled by wireless terminal to be used to illustrate the exemplary beacon ratio method for reporting according to each embodiment.

Figure 16 is the graphic of the example system described in Figure 12 and Figure 13, and it comprises the exemplary signaling that received and handled by wireless terminal to be used to illustrate the exemplary beacon ratio method for reporting according to each embodiment.

Figure 17 (comprising the combination of Figure 17 A, Figure 17 B, Figure 17 C and Figure 17 D) is the flow chart according to the exemplary method of the operate wireless terminal (for example, mobile node) of each embodiment.

Figure 18 is be used for the exemplary sequential organization information of one exemplary embodiment and corresponding interference report information (for example, the information of report beacon ratio report) graphic.

Figure 19 illustrates exemplary beacon ratio report request downlink signaling and exemplary up link beacon ratio report signaling at one exemplary embodiment in graphic.

Figure 20 is the graphic of the example communications system implemented according to each embodiment.

Figure 21 reports the graphic of (for example, beacon ratio report) for explanation corresponding to the exemplary downlink control signaling and the uplink channel interference of the example system of Figure 20.

Figure 22 is graphic according to the flow chart of the exemplary method of the operate wireless terminal of each embodiment.

Figure 23 is the graphic of the exemplary wireless terminal implemented according to each embodiment.

Figure 24 (comprising the combination of Figure 24 A and Figure 24 B) is the flow chart of the exemplary method of operate wireless terminal.

Figure 25 (comprising the combination of Figure 25 A and Figure 25 B) is the flow chart according to the exemplary method of the operate wireless terminal of each embodiment.

Figure 26 uses and reports form graphic of calculating according to the exemplary jamming report signal of each embodiment for explanation.

Figure 27 is the graphic of the exemplary wireless terminal implemented according to each embodiment.

Embodiment

The method and apparatus that is used to collect, report and use the information that can be used for the Interference Control purpose according to each embodiment now will be described.Method and apparatus of the present invention is suitable for wireless multiple access (for example, multi-user) communication system very much.Described system can be embodied as the wireless system of ofdm system, cdma system or other type, wherein is concerned about the signal interference from the transmission of one or more transmitters (for example, neighbor base station).

Below under the situation of the cellular radio data communication system 100 of the present invention shown in Fig. 1, one exemplary embodiment of the present invention is described.Though use exemplary cellular radio system to explain the present invention, scope of the present invention is more extensive and also can be applicable to many other wireless communication systems usually than example.

In wireless data communication system, air link resources comprises bandwidth, time or code usually.The air link resources of delivery user data and/or speech business is called as Traffic Channel.In traffic channel segments (abbreviating traffic segment as), on Traffic Channel, transmit data.Traffic segment can be served as the basic or least unit of available traffic channel resource.The downlink traffic section carries data service to wireless terminal from the base station, and the uplink service section carries data service to the base station from wireless terminal.Wherein can use an example system of the present invention to be spread spectrum OFDM (Orthodoxy Frequency Division Multiplex) multi-address system, wherein traffic segment comprises the some periodicity pitches that are defined in the finite time interval.

Fig. 1 is the explanation to the example wireless communication system of implementing according to each embodiment 100.Example wireless communication system 100 comprises a plurality of base stations (BS): base station 1102, base station M 114.Sub-district 1104 is the wireless coverage areas that are used for base station 1102.BS 1 102 and a plurality of wireless terminals (WT) that are positioned at sub-district 1104: WT (1) 106, WT (N) 108 communicate by letter.WT (1) 106, WT (N) 108 are coupled to BS 1 102 via Radio Link 110,112 respectively.Similarly, sub-district M 116 is the wireless coverage areas that are used for base station M 114.BS M 114 and a plurality of wireless terminals (WT) that are positioned at sub-district M 116: WT (1 ') 118, WT (N ') 120 communicate by letter.WT (1 ') 118, WT (N ') 120 are coupled to BS M 114 via Radio Link 122,124 respectively.WT (106,108,118,120) can be and moves and/or fixed radio communication device.Sometimes the mobile WT that is known as mobile node (MN) can be in system 100 moves everywhere, and can with the base station communication corresponding to its sub-district, place.Zone 134 is the borderline regions between sub-district 1104 and the sub-district M 116.In the system of Fig. 1, the sub-district is shown as single sector cell.Multi-sector cell also is possible and is supported.The transmitter of base station section can be discerned based on transmitted information (for example, transmitting the beacon signal of base station identifiers and/or sector identifier).

Network node 126 is coupled to BS 1 102 and BS M 114 via network link 128,130 respectively.Network node 126 also is coupled to other network node/internet via network link 132.Network link 128,130,132 can be (for example) optical fiber link.Network node 126 (for example, router node) be WT (for example, WT (1) 106) be provided to the connectivity of other node, other node is for example: other base station, aaa server node, home agent node, be positioned at its sub-district, current place (for example the sub-district 1104) communication peer node (for example, WT (N ') 120) in addition etc.

The exemplary base station 200 that Fig. 2 explanation is implemented according to each embodiment.Exemplary BS 200 can be Fig. 1 BS (BS 1102, BS M 114) any one more in detail the expression.BS 200 comprise the receiver 202 that is coupled via bus 214, transmitter 204, processor (for example, CPU) 206, I/O interface 208, I/O device 210, and memory 212, each element can be on described bus swap data and information.In addition, base station 200 comprises receiver antenna 216 that is coupled to described receiver 202 and the transmitter antenna 218 that is coupled to described transmitter 204.Transmitter antenna 218 from BS 200 transmission information (for example is used for, downlink traffic channel signals, beacon signal, pilot signal, appointment signal, jamming report request message, Interference Control indicator signal etc.) to WT 300 (referring to Fig. 3), and receiver antenna 216 is used for from WT 300 reception information (for example, uplink traffic channel signals, for the WT request of resource, WT jamming report etc.).

Memory 212 comprises routine (routine) 220 and data/information 224.Data/information 224 that processor 206 executive routines 220 and use are stored in the memory 212 is with the total operation and the implementation method of control base station 200.I/O device 210 (for example, display, printer, keyboard etc.) receives control and/or management input to BTS management person display system information and from described manager.I/O interface 208 is coupled to computer network, other network node, other base station 200 and/or internet with base station 200.Therefore, via I/O interface 208, base station 200 commutative customer informations and other data and (if desired) make the signal transmitting synchronous of WT 300.In addition, I/O interface 208 provides and is connected to the internet at a high speed, allows WT 300 users receiving and/or transmission information on the internet via base station 300.Receiver 202 is handled the signal that receives via receiver antenna 216 and is extracted the information content that is contained in wherein from received signal.Institute's information extraction (for example, data and channel interference report information) is sent to processor 206 via bus 214 and is stored in the memory 212.Transmitter 204 arrives WT 300 via antenna 218 transmission information (for example, data, beacon signal, pilot signal, appointment signal, jamming report request message, Interference Control indicator signal).

As mentioned above, the operation of control base station 200 under the guidance of the routine 220 of processor 206 in being stored in memory 212.Routine 220 comprises communication routines 226 and base stations control routine 228.Base stations control routine 228 comprises scheduler 230, downlink broadcasting signalling module 232, WT report processing module 234, report request module 236, and disturbs designator module 238.Report request module 236 can produce the request of reporting for about the certain interference of the particular B S sector of identification in the report request.When BS located to search interfere information in the time except that the time that is provided by predetermined or fixing report dispatching office, the report request that produces was transferred to one or more wireless terminals.Data/information 224 comprises downlink broadcasting reference signal information 240, wireless terminal data/information 241, uplink traffic channel information 246, interference report request information message 248, and Interference Control indicator signal 250.

Downlink broadcasting reference signal information 240 comprises beacon signal information 252, pilot information 254, and assigns signal message 256.Beacon signal is the OFDM broadcast singal of relative higher-wattage, and wherein transmitter power concentrates on one or several tone and continues the short duration (for example, two symbol times).Beacon signal information 252 comprises identifying information 258 and power level information 260.Beacon identification information 258 can comprise in order to identification beacon signal and information that beacon signal is associated with particular B S 200, for example, a specific tone or one group of specific tone, its special time place in a repeated downlink transmission intercal or circulation comprises beacon signal.Beacon power level information 260 comprises the information of the power level of definition transmission beacon signal.Pilot signal can comprise the known signal that is broadcast to WT with the high power level of appropriateness (for example, being higher than general signal level), its be generally used for discerning the base station, with base station synchronization and obtain channel estimation value.Pilot information 254 comprises identifying information 262 and power level information 264.Pilot identification information 262 comprises the information in order to discern pilot signal and pilot signal is associated with certain base station 200.Pilot power level information 264 comprises the information of the power level of definition transmission pilot signal.Provide various signals to be used for determining gain ratio and/or jamming report for wireless terminal through broadcasting about the information of signal transmission power level (for example, pilot tone and beacon signal transmission pilot level).Assign signal to comprise broadcast uplink and downlink traffic channel segments is assigned signal, its usually with the power level transmission that is higher than general signal level so that arrive WT in its sub-district with bad channel quality condition.Assign signaling information 256 to comprise identifying information 266 and power level information 268.The information of assigning signaling identifying information 266 to comprise to make the specific tone at special time place in the circulation of down link sequential to be associated with appointment for particular B S 200.Assign power level information 268 to comprise the information that the power level of signal is assigned in the definition transmission.

Wireless terminal data/information 241 comprises WT data/information of a plurality of groups: WT 1 information 242, WT N information 244.WT 1 information 242 comprises data 270, terminal identification information 272, interference cost report information 274, the uplink service section 276 of asking, and through assigning uplink service section 278.Data 270 comprise the user data that is associated with WT 1, and for example, the hope that receives from WT1 directly or indirectly is sent to the peer node of WT1 by BS 200, and () data and information for example, WT N, wherein WT 1 participates in communication session.Data 270 also comprise received data and the information of original source from the peer node (for example, WT N) of WT1.Terminal identification information 272 comprise WT 1 is associated with BS and by BS in order to the BS of identification WT 1 through assigning identifier.Interference cost report information 274 comprises the information that is forwarded to BS 200 in feedback report from WT 1, and described information Recognition WT 1 is transferred to uplink signalling the interference cost of communication system.The uplink service section 276 of asking comprises the request for the uplink service section of being distributed by BS scheduler 230 from WT1, for example, and number, type and/or time restriction information.Through assigning uplink service section 278 to comprise identification has been assigned to the uplink service section of WT 1 by scheduler 230 information.

Uplink traffic channel information 246 comprises a plurality of uplink traffic channel segments information sets, and described information sets comprises about being assigned to the information of the section of the WT that asks the uplink air link circuit resource by BS scheduler 230.Uplink traffic channel information 246 comprises channel segment 1 information 280 and channel segment N information 282.Channel segment 1 information 280 containing type information 284, power level information 286, definition information 288, and assignment information 290.Type information 284 comprises the information of the feature (for example, Duan frequency and time scope) of definition phase 1.For instance, BS can support polytype uplink segments, for example, has big bandwidth but has the section of duration in short-term and have little bandwidth but have the section of duration when long.Power level information 286 comprises and is defined in that WT will be with its regulation power level of transmitting when using uplink segments 1.Definition information 288 comprises definition and constitutes the characteristic frequency of uplink traffic channel segments 1 or the information of tone and special time.Assignment information 290 comprises the assignment information that is associated with uplink service section 1, for example, assign the WT that uplink traffic channel segments 1 is arranged identifier, be ready to use in coding and/or modulation scheme in the uplink traffic channel segments 1.

The interference report request information message 248 that is used for some embodiment is to treat that (for example) is as broadcast or the message transmitted as the message that is directed to specific WT.BS 200 can be transferred to WT 300 on shared control channel, thus indicate described WT to determine and report about the interfere information of the certain base station transmitter in the communication system (for example, base station section transmitter).Interference report request information message 248 comprises base station transmits device identifying information 292 usually, and it discerns the current certain base station sector that is used for jamming report through appointment.As discussed above, some base stations are embodied as single sector base stations.Therefore in time, BS 200 can change base station identification information 292 with corresponding to each of adjacent transmitter and obtain interfere information about a plurality of neighbors.

The Interference Control indicator signal 250 that is used among some embodiment (for example, wherein at least some uplink service Duan Wei are clearly assigned by the base station) is to be broadcast to WT 300 to control the signal which WT can use the uplink service section aspect the interference by BS 200.For instance, can use multilayer level variable (multi-level variable), wherein each level indication BS 200 wants to control the strict degree of interference.The WT 300 that receives this signal can use this signal combination himself to record interference and determine whether to allow the in check uplink service section of WT 300 uses.

Communication routines 226 is implemented various communication protocols of being used by BS 200 and total transmission of controlling user data.The operation of base stations control routine 228 control I/O devices 210, I/O interface 208, receiver 202, transmitter 204, and the operation of control BS 200 is to implement method of the present invention.Scheduler 230 will be assigned to WT 300 in the uplink service section under its control based on some restrictive conditions: the through-put power capacity of described section power requirement, WT reaches the interference cost to system.Therefore, scheduler 230 can (and often) use the information from the reception jamming report when downlink transmission is dispatched.Downlink broadcasting signalling module 232 uses the data/information 224 that comprises downlink broadcasting reference signal information 240 to produce and transmits for example beacon, pilot signal, the appointment signal that transmits with known power level, and/or the broadcast singal of other shared control signals, described broadcast singal can be used for determining downlink channel quality and uplink interference level by WT 300.WT jamming report processing module 234 uses that the data/information 224 that comprises the interference cost report information 274 that obtains from WT 300 is handled, association and forwarding uplink interfere information be to scheduler 230.The report request module 236 that is used for some embodiment produces a succession of jamming report request message 248 to ask a succession of uplink channel interference report, and each is reported corresponding to one in its neighbor base station.The interference designator module 238 that is used for some embodiment produces (multilayer level) Interference Control indicator signal 250, and described signal is through being transferred to WT 300 with the access of control to some uplink traffic channel segments.

The exemplary wireless terminal 300 that Fig. 3 explanation is implemented according to each embodiment.Exemplary wireless terminal 300 can be Fig. 1 example system wireless communication system 100 WT 106,108,118,120 any one more in detail the expression.WT300 comprise the receiver 302 that is coupled via bus 314, transmitter 304, I/O device 310, processor 306 (for example, CPU), and memory 312, each element can be on described bus swap data and information.Receiver 302 is coupled to antenna 316; Transmitter 304 is coupled to antenna 318.

Receive via antenna 316 from the down link signal of BS 200 transmission, and handle by receiver 302.Transmitter 304 is transferred to BS 200 via antenna 318 with uplink signal.Uplink signal is including (for example) uplink traffic channel signals and interference cost report.I/O device 310 comprises user's interface device, for example microphone, loud speaker, video camera, video display, keyboard, printer, data terminal display etc.I/O device 310 can be set up interface in order to the operator with WT 300, for example, to allow operator's input to be directed to user data, voice and/or the video of peer node and to allow the operator to watch user data, voice and/or the video that transmits from peer node (for example, another WT 300).

Memory 312 comprises routine 320 and data/information 322.Data/information 322 in processor 306 executive routines 320 and the use memory 312 is controlled basic operation and the implementation method of WT 300.Routine 320 comprises communication routines 324 and WT control routine 326.WT control routine 326 comprises reference signal processing module 332, interference cost module 334, reporting format selection module 329, and scheduling decision module 330.Reference signal processing module 332 comprises identification module 336, institute's received power measurement module 338, and channel gain ratio computation module 340.Interference cost module 334 comprises filtration module 342, determination module 344, and report generation module 346.Report generation module 346 comprises quantization modules 348.

Data/information 322 comprises downlink broadcasting reference signal information 349, wireless terminal data/information 352, uplink traffic channel information 354, the interference report request information message that receives 356, the Interference Control indicator signal 358 that receives, and received broadcast reference signal 353.

Downlink broadcasting reference signal information 349 comprises a plurality of downlink broadcasting reference signal information sets: base station 1 downlink broadcasting reference signal information 350, base station M downlink broadcasting reference signal information 351.BS 1 downlink broadcasting reference signal information comprises beacon signal information 360, pilot information 362, and assigns signaling information 364.Beacon signal information 360 comprises identifying information 366 (for example, BS identifier and sector identifier information) and power level information 368.Pilot information 362 comprises identifying information 370 and power level information 372.Assign signaling information 364 to comprise identifying information 374 and power level information 376.

Wireless terminal data/information 352 comprises data 382, terminal identification information 384, interference cost report information 386, the uplink service section 388 of asking, and through assigning uplink service section 390.

Uplink traffic channel information 354 comprises a plurality of uplink traffic channel information sets: channel 1 information 391, channel N information 392.Channel 1 information 391 containing type information 393, power level information 394, definition information 395, and assignment information 396.Scheduler module 330 in response to reception report request and user data the scheduling of control transmission jamming report for example, according to predetermined scheduling, jamming report that BS asks.

The interference report request information message that receives 356 comprises base station identifiers 397.

The example system 400 that Fig. 4 explanation is implemented according to each embodiment, it will be in order to explain various feature of the present invention.System 400 comprises first, second and third sub-district 404,406,408 adjacent one another are.First sub-district 404 comprises the first base station (BSS of the first base station section transmitter ₀) 410, and be connected to BSS ₀410 wireless terminal 420.Second sub-district 406 comprises the second base station (BSS of the second base station section transmitter ₁) 412.The 3rd sub-district 408 comprises the 3rd base station (BSS of the 3rd base station section transmitter ₂) 414.As finding out, at BSS ₀And the signal of transmission stands channel gain g between the WT 420 ₀At BSS ₁And the signal of transmission stands channel gain g between the WT 420 ₁At BSS ₂And the signal of transmission stands channel gain g between the WT 420 ₂

Suppose that WT 420 is connected to BSS ₀410, thus BSS used ₀410 as its attachment point.Gain ratio G _i=from BSSi to WT 420 channel gain with from BSS ₀Arrive the ratio of the channel gain of WT 420.That is:

G _i＝g _i/g ₀

Suppose with the equal-wattage level from first, second and third BSS transmission beacon signal, then from base station BS S ₀, BSS ₁, BSS ₂Institute's received power (PB) of the beacon signal that receives can be in order to following definite gain ratio:

G ₀＝g ₀/g ₀＝1＝PB ₀/PB ₀

G ₁＝g ₁/g ₀＝PB ₁/PB ₀

G ₂＝g ₂/g ₀PB ₂/PB ₀

Below discuss in the operation to concentrate on according to the uplink traffic channel of each embodiment.In example system, the traffic segment definable that constitutes uplink traffic channel in different frequency and time scope so that be adapted on one group of different radio channel and the wireless terminal of the wide class of under the different device restrictive condition, operating.Fig. 6 is that frequency on the vertical axis 102A is to the chart 100A of the time on the trunnion axis 104A.Fig. 6 illustrates two kinds of traffic segment in the uplink traffic channel.Be expressed as frequency range that the traffic segment of A 106A takies and be the twice of the frequency range that the traffic segment that is expressed as B 108A takies.Traffic segment in the uplink traffic channel can and the wireless terminal of base station communication between dynamically share.Scheduler module (it is the part of base station) can be assigned to different user with traffic channel segments fast according to common time dependent customer service demand, device restrictive condition and channel situation.Therefore between different user, effectively sharing and the dynamic assignment uplink traffic channel on (segment-by-segment) basis piecemeal.The dynamic assignment of explanation traffic segment in Fig. 6, its stage casing A is assigned to user #1 by base station dispatcher and section B is assigned to user #2.

In example system, in assigned channels, carry the assignment information of traffic channel segments, described assigned channels comprises a series of appointment sections.Each traffic segment is associated with corresponding unique appointment section, describedly assigns section transmission can comprise the identifier of wireless terminal and is ready to use in coding in the described traffic segment equally and the assignment information of modulation scheme.Fig. 7 is that frequency on the vertical axis 202A is to the chart 200A of the time on the trunnion axis 204A.Fig. 7 shows that two are assigned section A ' 206A and B ' 208A, and it transmits the assignment information of uplink service section A 210A and B 212A respectively.Assigned channels is a shared channel resources.Wireless terminal is received in the assignment information of transmitting in the assigned channels and transmits on uplink traffic channel segments according to assignment information subsequently.

Base station dispatcher 230 is based on some Considerations and the distribution service section.The power request transmission that restrictive condition is a Traffic Channel should not surpass the through-put power capacity of wireless terminal.Therefore, can be the wireless terminal of on more weak uplink channel, operating and distribute the traffic segment that takies the narrower frequency range in the example system, strict restricted so that instantaneous power requires not have.Similarly, also can be the wireless terminal distribution that produces the larger interference amount and comprise the traffic segment of less frequency range, so that reduce influence by the instantaneous interference of wireless terminal generation.By based on wireless terminal the interference cost of system being controlled total interference to the transmitting and scheduling of wireless terminal, described interference cost is defined hereinafter.

Wireless terminal is determined its interference cost to system from institute's receiving downlink broadcast singal.In one embodiment, wireless terminal is reported its interference cost to the base station with the form of jamming report, and it makes uplink scheduling Decision Control uplink channel interference subsequently.In another embodiment, base station broadcast Interference Control designator, and wireless terminal is with its interference cost and the institute's designator that receives comparison, with (for example with suitable mode, having the moving body that is lower than by the ul transmissions cost of the level of described control designator indication can transmit, and will be suppressed transmission and have the moving body that surpasses by the interference cost of the cost level of described control designator indication) determine its uplink transmission resource.

The exemplary interference cost that can consider now will be described.

Consider to be labeled as m ₀Wireless terminal.Suppose that described wireless terminal is connected to base station B ₀Expression G _{0, k}, it is wireless terminal and base station B for this reason _kBetween channel gain, k=0,1 ..., N-1, wherein N is the total number of base station in the system.

In example system, wireless terminal m ₀The common basis of the quantity of power of transmitting on the uplink service section is from wireless terminal m ₀To base station B ₀Wireless channel situation, frequency range, and to the selection of code check on the traffic segment.The frequency range of section reaches determines that to the selection of code check it is the amount that directly causes interference by the through-put power of moving body use.Suppose that the desired SNR of base station receiver decoding traffic segment needs the received power P of every tone of traffic segment _R(it is that portable terminal is operated under described channel situation to the selection of code check and the function of channel situation).This is about the through-put power P of every tone of wireless terminal _T, as follows:

P _R＝P _TG _0，0

Wireless terminal can be calculated as follows subsequently in the interference of every tone of adjacent base station k place generation thus:

$P_{I,k}={\mathrm{<figure-callout\; id="0"\; label="P\; T\; G"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">P</figure-callout>}}_T{G}_{}{}_{0,k}={\mathrm{<figure-callout\; id="0"\; label="P\; R\; G"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">P</figure-callout>}}_R\frac{G_{}}{}\frac{{}_{0,\mathrm{<figure-callout\; id="0"\; label="k\; G"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">\; <figure-callout\; id="0"\; label="k\; G"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">k</figure-callout>\; </figure-callout>}}}{G_{}{}_{}}$

Expression $r_{}$ ${}_{0,k}=\frac{{\mathrm{<figure-callout\; id="0"\; label="G"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">G</figure-callout>}}_{0,\mathrm{<figure-callout\; id="0"\; label="k\; G"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">\; <figure-callout\; id="0"\; label="k\; G"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">k</figure-callout>\; </figure-callout>}}}{G_{}{}_{}}.$ From then on expression formula is clearly visible, by wireless terminal m ₀At base station B _kThe interference that the place produces and its through-put power and channel gain and base station k reach with the ratio of himself base station proportional.Therefore, r _{0, k}Be called as wireless terminal m ₀To base station B _kInterference cost.

Summarize this notion, the total interference to every tone of all adjacent base stations that is produced by wireless terminal is:

$P_I^{\mathrm{total}}=P_T({\mathrm{<figure-callout\; id="0"\; label="G"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">\; <figure-callout\; id="1"\; label="G"\; filenames="A20068004544600621.png,A20068004544600661.png"\; state="\{\{state\}\}">G</figure-callout>\; </figure-callout>}}_{\mathrm{0,1}}+{\mathrm{<figure-callout\; id="0"\; label="G"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">\; <figure-callout\; id="2"\; label="G"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">G</figure-callout>\; </figure-callout>}}_{\mathrm{0,2}}+...+{\mathrm{<figure-callout\; id="0"\; label="G"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">G</figure-callout>}}_{0,N})=P_R\frac{\underset{k\&NotEqual;0}{\overset{\mathrm{<figure-callout\; id="0"\; label="N\; G"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">N</figure-callout>}}{\mathrm{\&Sigma;}}}{G}_{}{}_{0,\mathrm{<figure-callout\; id="0"\; label="k\; G"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">\; <figure-callout\; id="0"\; label="k\; G"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">k</figure-callout>\; </figure-callout>}}}{G_{}{}_{}}=P_R\underset{k=1}{\overset{\mathrm{<figure-callout\; id="0"\; label="N\; r"\; filenames="A20068004544600712.png,A20068004544600721.png"\; state="\{\{state\}\}">N</figure-callout>}}{\mathrm{\&Sigma;}}}{r}_{}{}_{0,k}$

Therefore, { r _0,1..., r _{0, N}Be wireless terminal m ₀Interference cost to whole system.

Attention is by moving body m ₀Produce to base station B _kThe instantaneous interference of total in fact by n _Tonesr _{0, k}It is useful providing, wherein n _TonesIt is the frequency range of traffic segment.

The method of determining interference cost in certain embodiments now will be described.In an one exemplary embodiment, the periodic reference signal that can detect and decode with higher-wattage broadcast radio terminal in each base station 102,114 in the example system 100.Reference signal comprises beacon, pilot tone or other shared control signals.Reference signal can have in order to the sub-district of identification base station and the unique pattern of sector.

In exemplary ofdm system 100, beacon or pilot signal can be used as reference signal.Beacon signal is special OFDM symbol, and wherein most of through-put power concentrates on a small amount of tone.The identifier of the frequency location indication base station of described high power tones.Pilot signal can have special dancing mode (hopping pattern), and it also stipulates the identifier of base station 102 uniquely.Therefore, can be in example system from beacon and/or pilot signal identification base station section.

In cdma system, pilot signal can be used as reference signal.For example, in the IS-95 system, pilot tone is to have the known extensions sequence of special time skew as the identifier of base station.

Though above-described example system 100 uses beacon or pilot signal to estimate that as path loss providing reference signal, the present invention to be applicable to can use other technology to provide in the extensive multiple systems of reference signal.

With the known power transmission of reference signals.Can transmit different reference signals by different capacity.Different base station 102,114 can be used for the different capacity level reference signal of same type, as long as these power are that portable terminal is known.

Wireless terminal 106 at first receives reference signal to obtain the identifier of base station 102.Subsequently, institute's received power of wireless terminal 106 measuring reference signals, and calculate from the base station 102 channel gains to wireless terminal 106.Notice that in the given position, wireless terminal may receive reference signal from a plurality of base stations 102,114.On the other hand, wireless terminal may not receive reference signal in all base stations from whole system.In example system, wireless terminal m ₀Monitor the base station B of its connection ₀G _0,0, and base station B _kG _{0, k}(if it can receive the corresponding reference signal).Therefore, wireless terminal m ₀Be one group of base station maintain interference cost { r _{0, k}Array, wireless terminal m ₀Can receive the reference signal of described group of base station.

Notice that wireless terminal 106 can be derived interference cost by the estimated value that makes up from a plurality of reference signals.For instance, in exemplary ofdm system 100, wireless terminal 106 can use beacon and pilot tone to draw { r _{0, k}Estimated value.

Interference cost { r _{0, k}Information will and increase total system capacity in order to the control uplink channel interference.Uplink traffic channel can be used in two patterns, and the use of following description disturbance cost in two patterns.

Should point out that the channel gain information that wireless terminal 106,108 is measured from downlink reference signal is to disturb the measurement at the cost that will have aspect the influence of up link and disturb.The down link between wireless terminal 106 and the base station 102 and the channel gain of up link can not be identical always.For removing the effect of short term variations, can (and certain in certain embodiments) estimated value from the channel gain of downlink reference signal be asked on average (for example using the form of low-pass filtering), to obtain interference cost { r _{0, k}Estimated value.

Now will discuss the use of definite interference cost in the scheduling operation pattern.In a particular exemplary operator scheme, each of uplink service section is clearly assigned by the base station so that uplink service section is only used by wireless terminal at the most.In exemplary ofdm system,, do not disturb so in this pattern, in the uplink service section, do not exist in the sub-district usually because traffic segment is orthogonal.

For helping the 102 places scheduling in the base station, according to the present invention, each wireless terminal 106,108 sends to the base station 102 that described wireless terminal is connected to a succession of jamming report.In certain embodiments, the interference cost { r that calculates of described report indicating gage _{0, k}.Under extreme situation, report is to comprise interference cost { r _{0, k}The control messages of whole array.Yet, be to reduce the signaling overhead, in one embodiment transmission array { r only _{0, k}Quantised versions.As hereinafter listed, exist some modes to quantize { r _{0, k}.

All { r of report _{0, k}And r _{0, total}

Report { r _{0, k}Maximum and the index k that is associated with described maximum.

Periodically report { r one by one _{0, k}And the index k that is associated.

Use a small amount of level to report r _{0, k}For instance, use two level to indicate r _{0, k}Be by force or a little less than.

After receiving described one or more jamming reports, the base station is dispatched (for example, assigning) as a function of interfere information to traffic segment.Scheduling strategy be with all through scheduling total interference-limited that wireless terminal produced to a predetermined threshold.Another scheduling strategy is the { r that reports according to wireless terminal _{0, k}Wireless terminal is categorized as some groups, comprise the traffic segment of less frequency range so that the influence of the instantaneous interference that reduces to be produced so that be preferably group's appointment with large disturbance cost.

Consider an embodiment, wherein its adjacent set is known in each base station 102,, is defined as the group etc. of neighbor's base station 114 for the viewpoint of disturbing that is.In a basic embodiment, the total interference to adjacent base station is only attempted to control in base station 102.It may be rough that described basic embodiment can be directed on the meaning of specific one in the adjacent base station (sub-district X) in nearly all interference, for example, because all can be near sub-district X through the scheduling wireless terminal.Under this situation, sub-district X at this moment between moment stand serious interference.At another time instant place, interference can concentrate on the different adjacent base station, and under described situation, sub-district X stands a little interference.Therefore, in the above embodiment of total Interference Control, can have bigger variation to the interference of special neighbourhood base station.For fear of making the presence of intercell interference instability, base station 102 may stay abundant surplus to compensate described bigger variation in the total interference that produces.

Strengthen among the embodiment one, a message is broadcasted in base station 102 on shared control channel, and described message instructs wireless terminal 106,108 to determine to reach report about certain base station B _kInterference cost.Therefore, wireless terminal m _j(j=0,1,2 ...) will send r _{J, k}Report.In time, this process is repeated to each member of its adjacent set in base station 102, and determine to disturb each the group of wireless terminal 106,108 of described base station.In case finish this classification, base station 102 just can be assigned to the uplink service section one son group of the wireless terminal 106,108 that disturbs different base station simultaneously, therefore reduces to be directed to the variation of the interference of any certain base station.Advantageously, have less variation,, thereby increase power system capacity so base station 102 can allow to produce total greatly stability of a system of disturbing and can not have a strong impact on owing to disturb.The wireless terminal 106,108 of 104 inside causes the interference ignored of adjacent base station 114 and therefore can be dispatched at any time in the sub-district.

Now will discuss interference cost and be used for some but use in needn't the non-scheduling operation pattern of all embodiments.

In this non-scheduling method, each of uplink service section is not clearly to be assigned by base station 102.As a result, a uplink service section can be used by a plurality of wireless terminals 106,108.In cdma system,, therefore in this pattern, in the uplink service section, exist in the sub-district usually and disturb because the uplink service section is not orthogonal.

In this pattern, whether each wireless terminal 106,108 will use uplink service section and (if so) to use which data rate and power to make himself scheduling decision for it.For helping to reduce excess interference and keep the stability of a system, according to each embodiment, base station broadcast Interference Control designator.Each wireless terminal 106,108 is compared reference level and is determined its scheduling decision with its interference cost.

In one embodiment, the Interference Control designator can be multilayer level variable, and the strict degree of total interference is wanted to control in each level indication base station 102.For instance, when broadcasting during minimum level, then allow each use of wireless terminal 106,108 to be in each each of traffic channel segments of described speed.When the broadcasting maximum level, the wireless terminal 106,108 that then only interference cost is extremely low can use traffic channel segments.When the broadcasting medium level, the wireless terminal 106,108 that then interference cost is lower can use all traffic channel segments, be preferably the traffic segment that comprises big frequency range, and the higher wireless terminal 106,108 of interference cost only can use the traffic segment of being formed and be in lower data speed by less frequency range.Base station 102 dynamically changes the interference volume that the Interference Control level of being broadcasted produces other base station with the wireless terminal 106,108 of control sub-district 104.

Fig. 5 (comprising the combination of Fig. 5 A, Fig. 5 B and Fig. 5 C) is the flow chart 1000 according to the exemplary method of the operate wireless terminal (for example, mobile node) of each embodiment.Operation starts from step 1002, wherein to wireless terminal energising and initialization.Operation proceeds to step 1004, step 1006 and proceeds to step 1008 via connected node B 1005 from step 1002.

In step 1004, the operate wireless terminal receives beacon and pilot signal to connect from the current base station sector.Operation proceeds to step 1010 from step 1004.In step 1010, wireless terminal by the current base station sector connect to measure the power (PB of reception beacon signal ₀) and the power (PP of the pilot frequency channel signal that receives ₀).Operation proceeds to step 1012 from step 1010.In step 1012, wireless terminal is derived current connection base station section transmitter information from the reception beacon signal, for example, and BSS_slope and BSS_sector type.Step 1012 comprises substep 1013.In substep 1013, power delivery layer (tier) level that the definite and current tone block that is connected base station section and is just using of wireless terminal is associated.

In step 1006, wireless terminal receives beacon signal 1006 from one or more interference base station sectors.Operation proceeds to step 1014 from step 1006.To (for example, interference base station sector, each interference base station sector _i(BSS _i)) execution subsequent operation 1014,1016,1018.

In step 1014, wireless terminal by the interference base station sector measure the power (PB of reception beacon signal _i).Operation proceeds to step 1016 from step 1014.In step 1016, wireless terminal is derived interference base station sectored transmissions device information from the reception beacon signal, for example, and BSS_slope and BSS_sector type.Step 1016 comprises substep 1017.In substep 1017, wireless terminal is determined to reach the power delivery layer level that the tone block just used is associated with the interference base station sector.

Operation proceeds to step 1018 from step 1012 and step 1016.In step 1018, wireless terminal uses the method for substep 1020 or the method for substep 1022 to come the calculating channel gain ratio.

In substep 1020, wireless terminal uses beacon signal information to come calculating channel gain ratio G _iSubstep 1020 comprises substep 1024, and wherein wireless terminal calculates G _i=PB _i/ PB ₀

In substep 1022, wireless terminal uses beacon signal information and pilot information to come calculating channel gain ratio G _iSubstep 1022 comprises substep 1026, and wherein wireless terminal calculates G _i=PB _i/ (PP ₀* K*Z ₀), wherein K=is used for the transmitter pilot signal reference level of every tone of transmitter power beacon reference level/be used for layer 0 tone block of every tone of layer 0 tone block, and Z ₀=be used for the current base station sector and connect the power conversion factor that transmitter power delivery layer level tone block and tone block is associated.

Operation proceeds to step 1043 from step 1018 via connected node A 1042, and wherein wireless terminal produces one or more jamming reports.

Turn back to step 1008, in step 1008, the operate wireless terminal is to receive broadcasting on-load factor information.Therefore, in an exemplary embodiment, the broadcast message that wireless terminal is sent from Current Serving BTS sectored transmissions device receives the on-load factor information of Current Serving BTS sector.Wireless terminal can receive the on-load factor information of disturbing the serving BS sector from broadcast message current or that disturb serving BS sectored transmissions device to be sent.Though the on-load factor information exhibition is to receive from the Current Serving BTS sector, alternatively, on-load factor information can receive and/or prestore and be stored in the wireless terminal from other node.For each base station section under consideration, operation proceeds to step 1028.In step 1028, wireless terminal determines whether successfully to have recovered on-load factor from received signal.If successfully recovered on-load factor from received signal, then operation proceeds to step 1030, wherein wireless terminal memory load factor.For instance, on-load factor b ₀=be used for the on-load factor of Current Serving BTS sector, and on-load factor b _k=be used for the on-load factor of interference base station section k.If successfully do not recover on-load factor from received signal, then operation proceeds to step 1032, and wherein wireless terminal is set at 1 with on-load factor.Obtain on-load factor (b ₀1032, b ₁1034 ..., b _k1038 ... b _n1040), wherein each on-load factor is derived from one in step 1030 and the step 1032.

Turn back to step 1043, in step 1043, wireless terminal produces one or more jamming reports.Step 1043 comprises substep 1044 and substep 1048.In substep 1044, wireless terminal produces the particular type report that the interference of certain interference base station section is delivered to the serving BS sector.Step 1044 comprises substep 1046.In substep 1046, wireless terminal report calculated value=(b ₀/ Z ₀)/(G _k* b _k/ Z _k), b wherein ₀Be the on-load factor of current service BSS, and b _kBe the on-load factor of the pairing interference of described report BSS, because of i=k, so G _k=G _i, and Z ₀Be to be used for current BSS to connect the power conversion factor that transmitter power delivery layer level tone block and tone block is associated, and Z _kBe to be used for the power conversion factor that the pairing interference base station of the described report power delivery layer level sector and tone block is associated.

In substep 1048, wireless terminal (for example) uses each the information (comprising working load factor information and power conversion factor information) that records beacon signal from the interference base station sector to produce one to disturb the information of the interference of BSS to be delivered to universal classes report of serving BS broadcasts S one or more.

In certain embodiments, step 1043 comprises quantification.

Operation proceeds to step 1050 from step 1043, and wherein the operate wireless terminal is to be transferred to report the Current Serving BTS sector of the current attachment point of serving as described wireless terminal.In certain embodiments, the transmission of report is in response to the request from the serving BS sector.In certain embodiments, the type of the report of being transmitted (for example, specific or general) is in response to the signaling that receives of the type of reporting from the identification of base station section.The transmission of the especially particular type report of in certain embodiments, the interference that is associated with the certain base station sector being reported is in response to the base station signal that receives of the described certain base station of identification sector.In each embodiment, the report scheduling of following according to the wireless terminal part of Dedicated Control Channel structure (for example as) and periodically transmit jamming report.In some described embodiment, at least some jamming reports that transmitted, the base station can any report selection information in order to select to report of signaling.

In certain embodiments, system comprises a plurality of power delivery layer level (for example, three), and described level has the different capacity conversion factor that is associated with each layer level.For instance, in an one exemplary embodiment, the power conversion factor of 0dB is associated with layer level 0 tone block, and the power conversion factor of 6dB is associated with layer 1 level tone block, and the power conversion factor of 12dB is associated with layer 2 tone block.In certain embodiments, each attachment point is corresponding to a base station section transmitter and a tone block, and each attachment point BSS transmitter tone block can be associated with a power delivery layer level.In certain embodiments, there are a plurality of downlink tone block, for example, three tone block (tone block 0, tone block 1, tone block 2), each tone block has 113 continuous evenly spaced tones.In certain embodiments, the same tone block of being used by different base station sectored transmissions device (for example, tone block 0) has the different power delivery layer level that is associated with different base station sectored transmissions device.Wireless terminal (for example, from the information of transmitting via its beacon signal, use tone locations and/or time location to discern a special connection point corresponding to base station section transmitter and tone block with circle transmission pattern) can use stored information to make to be associated through identification attachment point and certain power transport layer level and the power conversion factor that is used for the specific tone piece.

In certain embodiments, on-load factor (for example, b _k) be more than or equal to 0 and be less than or equal to 1 value.In certain embodiments, described value is sent to wireless terminal from base station section, represent a plurality of level (for example, 0dB ,-1dB ,-2dB ,-3dB ,-4dB ,-6dB ,-9dB, negative infinite dB) in one.

In certain embodiments, no matter the power delivery layer that is associated with the tone block of just using transmits beacon signal with equal-wattage from the base station section transmitter; Yet the power delivery layer that other down link signal (for example, pilot signal) is subjected to be associated with the tone block that is used for the base station section transmitter influences.In certain embodiments, parameter K is the value more than or equal to 6dB.For instance, in an one exemplary embodiment, parameter K=23.8dB-7.2dB=16.6dB.

Fig. 8 shows the example communications system of implementing according to each embodiment 800.Example communications system 800 comprises a plurality of sub-districts: sub-district 1802, sub-district M 804.Example system 800 is (for example) exemplary Orthodoxy Frequency Division Multiplex (OFDM) spread spectrum radio communication system, for example multiple access ofdm system.Each sub-district 802,804 of example system 800 comprises three sectors.According to each embodiment, be not subdivided into the sub-district (N=1) of a plurality of sectors as yet, the sub-district (N＞3) that has the sub-district (N=2) of two sectors and have 3 above sectors also is possible.One or more carrier waves and/or downlink tone block are supported in each sector.In certain embodiments, each downlink tone block has corresponding uplink tone piece.In certain embodiments, three downlink tone block are supported at least some sectors.Sub-district 802 comprises first sector (sector 1810), second sector (sector 2812), and the 3rd sector (sector 3814).Similarly, sub-district M 804 comprises first sector (sector 1822), second sector (sector 2824), and the 3rd sector (sector 3826).Sub-district 1802 comprises a plurality of wireless terminals (WT) in base station (BS) (base station 1806) and each sector 810,812,814.Sector 1810 comprises WT (1) 836 and the WT (N) 838 that is coupled to BS 806 respectively via Radio Link 840,842; Sector 2812 comprises WT (1 ') 844 and the WT (N ') 846 that is coupled to BS 806 respectively via Radio Link 848,850; Sector 3814 comprises respectively via Radio Link 856,858 is coupled to WT (1 ") 852 of BS 806 and WT (N ") 854.Similarly, sub-district M 804 comprises a plurality of wireless terminals (WT) in base station M 808 and each sector 822,824,826.Sector 1822 comprises the WT (1 " " that is coupled to BS M808 respectively via Radio Link 880,882) 868 and WT (N " ") 870; Sector 2824 comprises the WT (1 " " ' that is coupled to BS M 808 respectively via Radio Link 884,886) 872 and WT (N " " ') 874; Sector 3826 comprises respectively via Radio Link 888,890 is coupled to WT (1 " " ") 876 of BS M 808 and WT (N " " ") 878.

System 800 also comprises the network node 860 that is coupled to BS1 806 and BS M 808 respectively via network link 862,864.Network node 860 also is coupled to other network node (for example, other base station, aaa server node, intermediate node, router etc.) and internet via network link 866.Network link 862,864,866 can be (for example) fiber optic cables.Each wireless terminal (for example, WT1 836) comprises transmitter and receiver.At least some wireless terminals (for example, WT (1) 836) are the mobile nodes that (for example) uses the base station section attachment point, and it is removable to pass system 800 and can be via the base station communication in the sub-district at Radio Link and the current place of WT.Wireless terminal (WT) (for example, WT (1) 836) can be via base station (for example, BS 806) and/or network node 860 and peer node (for example, in the system 800 or other outer WT of system 800) communication.WT (for example, WT (1) 836) can be mobile communications device, for example cellular phone, have radio modem personal digital assistant, have radio modem laptop computer, have the data terminal of radio modem etc.

One exemplary 4 downlink beacon ratios reports (DLBNR4) now will be described.It is from the serving BS sector and from the function that records downlink broadcast signals (for example, beacon signal and/or pilot signal) that receives of one or more other interference base station sectors that the report of described beacon ratio provides an information, described information.Aspect quality, the report of beacon ratio can be in order to estimate the recency that connects of WT and other base station section.Beacon ratio report can (and certain in certain embodiments) be used to control the uplink rate of WT at place, serving BS broadcasts sector, to prevent the excess interference to other sector.In certain embodiments, beacon ratio report is based on two factors: (i) estimated channel gain ratio is expressed as G _i, reach (ii) on-load factor, be expressed as b _i

In certain embodiments, the channel gain ratio is defined as follows.In the tone block of current connection, in certain embodiments, WT determines to take office that what connection and disturb from WT an estimated value of the uplink channel gain of base station section i (BSSi) and the ratio of channel gain from WT to serving BS broadcasts S.This ratio table is shown G _iUsually, the uplink channel gain ratio can not directly be measured at the WT place.Yet, because up link and downlink path gain are symmetrical usually, so can be by comparing from serving BS broadcasts S and disturbing the relative institute received power of the down link signal of BSS to estimate described ratio.One with reference to down link signal may be chosen as the downlink beacon signal, is detected owing to it can extremely hang down SNR, so it is suitable for this purpose very much.In certain embodiments, beacon signal recently has the transmission power level of higher every tone from other down link signal of base station section.In addition, the feature of beacon signal is so, makes that accurate sequential is unnecessary for detecting and measuring beacon signal synchronously.For instance, in certain embodiments, beacon signal is high power arrowband (for example, monotone), two signals that the OFDM symbol transmission time periods is wide.Therefore in some position, WT can detect and measure the beacon signal from base station section, and wherein detection of other downlink broadcast signals (for example, pilot signal) and/or measurement may be infeasible.Use beacon signal, the uplink path ratio will be by G _i=PB _i/ PB ₀Provide, wherein PB _iAnd PB ₀Be respectively the beacon power that receives that records of coming self-interference and serving BS sector respectively.

Owing to quite do not transmit beacon continually usually, especially in the decline environment that power changes fast, may not provide expression very accurately to average channel gain to the power measurement of beacon signal.For instance, in certain embodiments, beacon signal of transmission in each beacon slot of 912 OFDM symbol transmission time periods, described beacon signal take the duration of 2 continuous OFDM symbol transmission time periods and corresponding to the downlink tone block of base station section.

On the other hand, usually much frequent as to transmit pilot signal than beacon signal, for example, in certain embodiments, transmit pilot signal during 896 time cycles in 912 OFDM symbol transmission time periods of beacon slot.If WT can detect the sector pilot signals from BS, then it can receive pilot signal but not use the beacon signal measurement to estimate the beacon signal intensity that receives from recording.For instance, if WT can measure the pilot power PP that receives that disturbs the BS sector _i, then it can be from estimated PB _i=KZ _iPP _iEstimate the beacon power PB that receives _i, wherein K is the beacon of interference sector and the nominal ratio of pilot power (nominal ratio), it all is identical for each of BS sector, and Z _iFor according to the fixed conversion factor in sector.

Similarly, if can measure at the WT place, then receive beacon power PB from the pilot signal power of serving BS broadcasts ₀Can be from relational expression (estimated PB ₀=KZ ₀PP ₀) estimation, wherein Z ₀And PP ₀Being respectively conversion factor reaches from recording of the serving BS sector pilot power that receives.

According to observations, if the pilot signal strength that receives can measure corresponding to the serving BS sector, and institute's beacon signal intensity that receives can be corresponding to the measurement of interference base station sector, then the beacon ratio can be estimated from following formula:

G _i＝PB _i/(PP ₀?K?Z ₀)。

According to observations, if pilot frequency intensity can be measured in serving sector and interference sector, then the beacon ratio can be estimated from following formula:

G _i＝PP _i?K?Z _i/(PP ₀?K?Z ₀)＝PP _i?Z _i/(PP ₀?Z ₀)。

Conversion factor K, Z _iAnd Z ₀Can be system constants, or can infer from out of Memory by WT from BS.In certain embodiments, conversion factor (K, Z _i, Z ₀) in some be system constants and conversion factor (K, Z _i, Z ₀) in some by WT from inferring from the out of Memory of BS.

On different carrier, has in the multicarrier system of different capacity level conversion factor Z at some _iAnd Z ₀Function for downlink tone block.For instance, exemplary BSS has three power layer level, and one in described three power layer level are associated with each downlink tone block corresponding to the BSS attachment point.In some described embodiment, the different persons in three power layer level are associated with each of the different tone block of BSS.Continue described example, for given BSS, each power layer level and nominal bss power level are (for example, among bssPowerNominal0, bssPowerNominal1 and the bssPowerNominal2 one) be associated, and pilot frequency channel signal transmits with a relative power level with respect to the nominal bss power level that is used for tone block (for example, being higher than the nominal bss power level 7.2dB that tone block is just being used); Yet, all identical no matter beacon, is used for the relative transmission power level of the every tone of beacon of BSS from the transmission of which tone block, for example be higher than 0 employed bss power level of power layer (bssPowerNominal0) 23.8dB.Therefore, in this example, for given BSS, beacon transmissions power in each of tone block with identical, and pilot transmission power difference, for example, the pilot transmission power of different tone block is corresponding to different capacity layer level.The one group of conversion factor that is used for this example will be K=23.8-7.2dB, and it is to be used for the beacon of layer 0 and the ratio of pilot power, and Z _iThe layer through being set at interference sector and the relative nominal power of the power of layer 0 sector.

In certain embodiments, determine parameter Z according to tone block how to use current connection among the serving BS broadcasts S (bssSectorType as serving BS broadcasts S determines) from stored information (for example, the form 900 of Fig. 9) ₀For instance, if the tone block of current connection is used as layer 0 tone block, then a Z by serving BS broadcasts S ₀=1; If the tone block of current connection is used as layer 1 tone block, then a Z by serving BS broadcasts S ₀=bssPowerBackoff01; If the tone block of current connection is used as layer 2 tone block, then a Z by serving BS broadcasts S ₀=bssPowerBackoff02.

Fig. 9 comprises exemplary power conversion factor form 900.First row 902 are listed as layer 0 tone block, layer 1 tone block or layer 2 tone block with the use of tone block.Secondary series 904 will be listed as (1, bssPowerBackoff01, bssPowerBackoff02) with each layer (0,1,2) tone block conversion factor that be associated respectively.In certain embodiments, bssPowerBackoff01 is 6dB, and bssPowerBackoff02 is 12dB.

In certain embodiments, DCCH DLBNR4 report can be one in general beacon ratio report and the report of special beacon ratio.In some described embodiment, downlink traffic control channel (for example, the DL.TCCH.FLASH channel) sends a special frames in a beacon slot, and described special frames comprises " to the request field of DLBNR4 report ".Described field can be selected in order to control by serving BS broadcasts S.For instance, if described field is through being set at zero, then WT reports general beacon ratio report; Otherwise WT reports special beacon ratio report.

According to each embodiment, if WT will be transferred to the serving BS broadcasts S in the current connection, WT is measured in then general beacon ratio report will be to all relative interference cost of disturbing the interference beacon of beacon or " the most close " to produce.According to some embodiment, if WT will be transferred to the serving BS broadcasts S in the current connection, WT is measured in then special beacon ratio report will be to the relative interference cost of particular B SS generation.Described particular B SS is to use the information that receives and the BSS that indicates in the request field to DLBNR4 of special descending chain circuit frame.For instance, in certain embodiments, particular B SS is following BSS: the value that its bssSlope equals " to the request field of DLBNR4 report " (for example, with the integer data format of signed not), and its bssSectorType equals mod (ulUltraslotBeaconslotIndex, 3), wherein ulUltraslotBeaconslotIndex is the up link index of the beacon slot in the overtime crack (ultraslot) of current connection.In some one exemplary embodiment, in an overtime crack, there are 18 beacon slots with index.

In each embodiment, from the channel gain ratio G1, the G2 that calculate ... followingly determine general and special beacon ratio.WT is received in the uplink loading factors that sends in the downlink broadcasting system subchannel, and determines variable b from the uplink loading factors form 950 of Figure 10 ₀ Form 950 comprises first row 952, and it lists eight different values (0,1,2,3,4,5,6,7) that can be used for uplink loading factors; Secondary series 954, its list the respective value that is respectively applied for dB the b value that is unit (0 ,-1 ,-2 ,-3 ,-4 ,-6,

-9, negative infinite).For other BSSi, WT attempts to receive b from the uplink loading factors that sends the downlink broadcasting system subchannel of BSSi in the tone block of current connection _iIf WT can not receive UL on-load factor b _i, then WT sets b _i=1.

In certain embodiments, in single-carrier operation, WT calculates following power ratio and reports as general beacon ratio: when ulUltraslotBeaconslotIndex is even number, and b ₀/ (G ₁b ₁+ G ₂b ₂+ ...), or when ulUltraslotBeaconslotIndex is odd number, b ₀/ max (G ₁b ₁, G ₂b ₂...), wherein ulUltraslotBeaconslotIndex is the up link index of the beacon slot in the overtime crack of current connection, and normal addition is represented in computing "+".When needs sent the report of specified beacon ratio, in certain embodiments, WT calculated b ₀/ (G _kB _k), wherein index k represents particular B SSk.In certain embodiments, in an overtime crack, there are 18 beacon slots with index.

Figure 11 is used for the form 1100 of the exemplary format of 4 downlink beacon ratio reports (DLBNR4) for the explanation according to item embodiment.First row 1102 are listed transferable 16 the various bit patterns of described report, and secondary series 1104 is listed the power ratio of reporting corresponding to each pattern of reporting, for example change to 26dB from-3dB.Wireless terminal reports general by the DLBNR4 table entries of selecting and transmit the definite report value of the most approaching institute and the specified beacon ratio is reported.Although in this one exemplary embodiment, general and specified beacon ratio report is used identical form to DLBNR4, in certain embodiments, can use different forms.

Figure 12 is the graphic of exemplary Orthodoxy Frequency Division Multiplex (OFDM) wireless communication system 8000 (for example, OFDM SSMA wireless communication systems) implemented according to each embodiment.Example wireless communication system 8000 comprises a plurality of base stations and a plurality of wireless terminal (for example, mobile node) that is coupled via backhaul network.Exemplary base station (base station 18002, base station 28004, base station 38006, base station 48008) and exemplary wireless terminal 1 (WT1) 8010 are showed among Figure 12.

Base station 18002 is three sector base stations, and it comprises base station section S0 (BSS0) 8012, base station section S1 (BSS1) 8014, and base station section S2 (BSS2) 8016.Each base station section (8012,8014,8016) has corresponding nominal layer 0 power level (BSS 0 nominal layer 0 power level 8018, BSS 1 nominal layer 0 power level 8020, BSS 2 nominal layer 0 power level 8022).Base station 28004 is three sector base stations, and it comprises base station section S0 (BSS0) 8024, base station section S1 (BSS1) 8026, and base station section S2 (BSS2) 8028.Each base station section (8024,8026,8028) has corresponding nominal layer 0 power level (BSS0 nominal layer 0 power level 8030, BSS1 nominal layer 0 power level 8032, BSS2 nominal layer 0 power level 8034).Base station 38006 is three sector base stations, and it comprises base station section S0 (BSS0) 8036, base station section S1 (BSS1) 8038, and base station section S2 (BSS2) 8040.Each base station section (8036,8038,8040) has corresponding nominal layer 0 power level (BSS0 nominal layer 0 power level 8042, BSS1 nominal layer 0 power level 8044, BSS2 nominal layer 0 power level 8046).Base station 48008 is single sector base stations, and it has nominal layer 0 power level 8048.

Each nominal layer 0 power level corresponding to one with downlink tone block that corresponding base station section transmitter is just using in power levels that are associated.In certain embodiments, each downlink tone block uplink tone piece corresponding with is associated.In this one exemplary embodiment, each base station section is corresponding to one or more physical attachment points, and each physical attachment point is right corresponding to one down link/uplink tone piece.For using (for example) to transmit the base station section transmitter of downlink user data corresponding to a plurality of downlink tone block of a plurality of physical attachment points, nominal layer 0 power level is associated with the downlink tone block with highest power level.In addition, relate to other downlink tone block in the nominal power level with respect to layer 0 tone block power level, the nominal power level of wherein said tone block has than low value.For instance, for given BSS, layer 1 tone block has than the lower power level of layer 0 tone block, and layer 2 tone block have than the lower power level of layer 1 tone block.

Figure 13 illustrates the example system 8000 of Figure 12, and provides each additional detail corresponding to base station section so that various features to be described.This one exemplary embodiment represents that one uses the wireless communication system of three non-overlapped downlink tone block (tone block 0, tone block 1 and tone block 2).For instance, in certain embodiments, each downlink tone block is corresponding to 113 OFDM tones, and the combination of described 3 tone block is corresponding to the 5MHz system.In this one exemplary embodiment, beacon signal is transferred in each tone block by BSS, and beacon is transmitted with a power level with respect to layer 0 power level; Yet pilot signal and user data signal may or may not be transferred in the given tone block, and pilot tone/user data signal is transmitted with respect to the power level of the power layer level of the tone block of correspondence with one by base station section.Beacon signal of the every tone block transmission of the every beacon slot of each base station section.In this one exemplary embodiment, sectors type determines which tone block is layer 0 tone block; Layer 1 and layer 2 tone block are in use also by being determined with the related of sectors type.

Frame 8050 indications, BSS 0 8012:(i for base station 18002) tone block 0 is associated with layer power level 0, and in tone block 0, transmit beacon, pilot tone and user data signal, (ii) tone block 1 is associated with layer power level 1, and in tone block 1, transmit beacon, pilot tone and user data signal, (iii) tone block 2 is associated with a layer power level 2, and in tone block 2, transmit beacon, pilot tone and user data signal.Frame 8052 indications, BSS18014:(i for base station 18002) tone block 0 is associated with layer power level 2, and in tone block 0, transmit beacon, pilot tone and user data signal, (ii) tone block 1 is associated with layer power level 0, and in tone block 1, transmit beacon, pilot tone and user data signal, (iii) tone block 2 is associated with a layer power level 1, and in tone block 2, transmit beacon, pilot tone and user data signal.Frame 8054 indications, BSS 2 8016:(i for base station 18002) tone block 0 is associated with layer power level 1, and in tone block 0, transmit beacon, pilot tone and user data signal, (ii) tone block 1 is associated with layer power level 2, and in tone block 1, transmit beacon, pilot tone and user data signal, (iii) tone block 2 is associated with a layer power level 0, and in tone block 2, transmit beacon, pilot tone and user data signal.

Frame 8056 indications, BSS 0 8024:(i for base station 28004) tone block 0 is associated with layer power level 0, and in tone block 0, transmit beacon, pilot tone and user data signal, (ii) tone block 1 is associated with layer power level 1, and in tone block 1, transmit beacon, pilot tone and user data signal, (iii) tone block 2 is associated with a layer power level 2, and in tone block 2, transmit beacon, pilot tone and user data signal.Frame 8058 indications, BSS1 8026:(i for base station 28004) tone block 0 is associated with layer power level 2, and in tone block 0, transmit beacon, pilot tone and user data signal, (ii) tone block 1 is associated with layer power level 0, and in tone block 1, transmit beacon, pilot tone and user data signal, (iii) tone block 2 is associated with a layer power level 1, and in tone block 2, transmit beacon, pilot tone and user data signal.Frame 8060 indications, BSS 2 8028:(i for base station 28004) tone block 0 is associated with layer power level 1, and in tone block 0, transmit beacon, pilot tone and user data signal, (ii) tone block 1 is associated with layer power level 2, and in tone block 1, transmit beacon, pilot tone and user data signal, (iii) tone block 2 is associated with a layer power level 0, and in tone block 2, transmit beacon, pilot tone and user data signal.

Frame 8062 indications, BSS 0 8036:(i for base station 38006) tone block 0 is associated with layer power level 0, and in tone block 0, transmit beacon, pilot tone and user data signal, (ii) tone block 1 is associated with layer power level 1, and transmit beacon, pilot tone and user data signal in tone block 1, (iii) tone block 2 is used for beacon signaling but is not used in pilot tone and the user data signaling.Frame 8064 indications, BSS 1 8038:(i for base station 38006) tone block 0 is used for beacon signaling but is not used in pilot tone and the user data signaling, (ii) tone block 1 is associated with layer power level 0, and transmit beacon, pilot tone and user data signal in tone block 1, (iii) tone block 2 is used for beacon signaling but is not used in pilot tone and the user data signaling.Frame 8066 indications, BSS 2 8040:(i for base station 38006) tone block 0 is used for beacon signaling but is not used in pilot tone and the user data signaling, (ii) tone block 1 is used for beacon signaling but is not used in pilot tone and the user data signaling, (iii) tone block 2 is associated with a layer power level 0, and in tone block 2, transmit beacon, pilot tone and user data signal.

Frame 8068 indications, BSS:(i for base station 48008) tone block 0 is associated with layer power level 0, and in tone block 0, transmit beacon, pilot tone and user data signal, (ii) tone block 1 is associated with layer power level 1, and in tone block 1, transmit beacon, pilot tone and user data signal, (iii) tone block 2 is associated with a layer power level 2, and in tone block 2, transmit beacon, pilot tone and user data signal.

Figure 14 is the graphic of the example system 8000 described in Figure 12 and Figure 13, and it comprises the exemplary signaling that received and handled by WT 8010 to be used to illustrate the exemplary beacon ratio method for reporting according to each embodiment.In the example of Figure 14, wireless terminal 8010 have one use tone block 1 physical attachment point with wireless connections 8070 BSS 8016.About connecting the beacon ratio report that transmits on 8070, BSS 8016 is serving BS broadcasts S, is expressed as BSS sometimes ₀In this example, for the viewpoint of WT 8010, BSS 8012,8026,8036,8008 expression interference base station sectors are expressed as BSS sometimes _i

Wireless terminal receives and handles beacon signal 8078 and the pilot tones signal 8076 that transmits from serving BS broadcasts S 8016 tone block 1.Notice that WT 1 8010 is that sequential is synchronous with respect to BSS 8016 tone block 1 attachment point, and therefore accurate measurement pilot.Wireless terminal 8010 disturbs BSS (8012,8026,8036,8008) to receive and handle the beacon signal (8072,8082,8086,8090) of transmission tone block 1 from each respectively.For example, use monotone, comparing with the transmission power level transmission of relative high every tone and have the beacon signal of the duration of two continuous OFDM symbol transmission time periods with other downlink broadcast signals (for example pilot signal) (for example can be easier to detection than pilot signal, in longer scope), and it is synchronous not need accurately to measure accurate sequential.In addition, transmit uplink loading factors information signal (8080,8074,8084,8088,8092) from each of BSS (8016,8012,8026,8036,8008) respectively.These uplink loading factors information signals (8080,8074,8084,8088,8092) are transmitted as broadcast singal, but can or can not successfully recover, for example, because the transmission power level of its every tone is lower than the transmission power level of every tone of beacon.Can not successfully recover under the situation of uplink loading factors, (for example, value 1) Uses Defaults in the report of beacon ratio is calculated.

Now will describe the generation of exemplary general purpose beacon ratio report, the general beacon ratio report that is produced is connecting transmission on 8070 via the Dedicated Control Channel section.

Serving BS broadcasts S (BSS ₀) be BSS 8016.PP ₀The wireless terminal that is the pilot signal that receives 8076 records power.Disturb BSS ₁Be BSS 8012, and PB ₁Be the power that records of the beacon signal that receives 8072.Disturb BSS ₂Be BSS8026, and PB ₂Be the power that records of the beacon signal that receives 8082.Disturb BSS ₃Be BSS 8036, and PB ₃Be the power that records of the beacon signal that receives 8086.Disturb BSS ₄Be BSS 8008, and PB ₄Be the power that records of the beacon signal that receives 8090.Uplink loading factors (b0, b1, b2, b3, b4) (if successfully recovering) is recovered from signal (8080,8074,8084,8088,8092) respectively.The value of each b is more than or equal to 0 and be less than or equal to 1.If given b is irrecoverable, then Use Defaults 1.Because tone block 1 is used for pilot tone and user data signaling by BSS 8102, so indicator function I ₁=1.Because tone block 1 is used for pilot tone and user data signaling by BSS 8026, so indicator function I ₂=1.Because tone block 1 is not used for pilot tone and user data signaling by BSS 8036, so indicator function I ₃=0.Because tone block 1 is used for pilot tone and user data signaling by BSS 8008, so indicator function I ₄=1.

K is the ratio of through-put power that is used for every tone of layer beacon channel of 0 tone block and pilot channel, and described ratio is the constant of system.Because the tone block of BSS 8,016 1 is layer 2 tone block, so Z ₀=bssPowerbackoff02.Because the tone block of BSS 8,012 1 is layer 1 tone block, so Z ₁=bssPowerbackoff01.Because the tone block of BSS 8,026 1 is layer 0 tone block, so Z ₂=1.Because I ₃=0, so Z ₃Be incoherent.Because the tone block of BSS 8,008 1 is layer 1 tone block, so Z ₄=bssPowerbackoff01.

Under the general situation of considering n interference base station sector, the general beacon ratio report=(b of the first kind ₀/ Z ₀)/(G ₁b ₁/ Z ₁* I ₁+ G ₂b ₂/ Z ₂* I ₂+ G ₃b ₃/ Z ₃* I ₃+ G ₄b ₄/ Z ₄* I ₄+ ... G _nb _n/ Z _n* I _n), and the general beacon ratio report=(b of second type ₀/ Z ₀)/(max (G ₁b ₁/ Z ₁* I ₁, G ₂b ₂/ Z ₂* I ₂, G ₃b ₃/ Z ₃* I ₃, G ₄b ₄/ Z ₄* I ₄..., G _nb _n/ Z _n* I _n)), wherein

G ₁=PB ₁/ PB ₀Or PB ₁/ (PP ₀* K*Z ₀).

G ₂=PB ₂/ PB ₀Or PB ₂/ (PP ₀* K*Z ₀).

G ₃=PB ₃/ PB ₀Or PB ₃/ (PP ₀* K*Z ₀).

G ₄=PB ₄/ PB ₀Or PB ₄/ (PP ₀* K*Z ₀).

.

.

.

G _n=PB _n/ PB ₀Or PB _n/ (PP ₀* K*Z ₀).

For the particular condition of the Figure 14 that considers 4 interference base station sectors, the general beacon ratio report=(b of the first kind ₀/ Z ₀)/(G ₁b ₁/ Z ₁* I ₁+ G ₂b ₂/ Z ₂* I ₂+ G ₃b ₃/ Z ₃* I ₃+ G ₄b ₄/ Z ₄* I ₄), and the general beacon ratio report=(b of second type ₀/ Z ₀)/(max (G ₁b ₁/ Z ₁* I ₁, G ₂b ₂/ Z ₂* I ₂, G ₃b ₃/ Z ₃* I ₃, G ₄b ₄/ Z ₄* I ₄)), wherein

G ₁=PB ₁/ PB ₀Or PB ₁/ (PP ₀* K*Z ₀).

G ₂=PB ₂/ PB ₀Or PB ₂/ (PP ₀* K*Z ₀).

G ₃=PB ₃/ PB ₀Or PB ₃/ (PP ₀* K*Z ₀).

G ₄=PB ₄/ PB ₀Or PB ₄/ (PP ₀* K*Z ₀).

In addition, because I ₁=1, I ₂=1, I ₃=0 and I ₄=1, so general beacon ratio report equation can be reduced to: the general beacon ratio report=(b of the first kind ₀/ Z ₀)/(G ₁b ₁/ Z ₁+ G ₂b ₂/ Z ₂+ G ₄b ₄/ Z ₄), and the general beacon ratio report=(b of second type ₀/ Z ₀)/(max (G ₁b ₁/ Z ₁, G ₂b ₂/ Z ₂, G ₄b ₄/ Z ₄)), wherein

G ₁=PB ₁/ PB ₀Or PB ₁/ (PP ₀* K*Z ₀).

G ₂=PB ₂/ PB ₀Or PB ₂/ (PP ₀* K*Z ₀).

G ₄=PB ₄/ PB ₀Or PB ₄/ (PP ₀* K*Z ₀).

Figure 15 is the graphic of the example system 8000 described in Figure 12 and Figure 13, and it comprises the exemplary signaling that received and handled by WT 8010 to be used to illustrate the exemplary beacon ratio method for reporting according to each embodiment.In the example of Figure 15, wireless terminal 8010 has the wireless connections of two whiles: use tone block 1 physical attachment point with first wireless connections 8070 BSS 8016, and use tone block 1 physical attachment point with second physical connection BSS 8026.About connecting the beacon ratio report that transmits on 8070, BSS 8016 is serving BS broadcasts S, is expressed as BSS sometimes ₀, and BSS8012,8026,8036,8008 expression interference base station sectors, be expressed as BSS sometimes _iAbout connecting the beacon ratio report that transmits on 8071, BSS 8026 is serving BS broadcasts S, is expressed as BSS sometimes ₀, and BSS 8012,8016,8036,8008 expression interference base station sectors, be expressed as BSS sometimes _i

Before can be used for producing one by WT 8010 and be used to connect 8070 beacon ratio report about the described same signal of Figure 14.In addition, can be used for producing one by WT 8010 from the pilot signal 8083 in the tone block 1 of BSS 8026 and be used to connect 8070 beacon ratio report.

Under the general situation of considering n interference base station sector, the general beacon ratio report=(b of the first kind ₀/ Z ₀)/(G ₁b ₁/ Z ₁* I ₁+ G ₂b ₂/ Z ₂* I ₂+ G ₃b ₃/ Z ₃* I ₃+ G ₄b ₄/ Z ₄* I ₄+ ... G _nb _n/ Z _n* I _n), and the general beacon ratio report=(b of second type ₀/ Z ₀)/(max (G ₁b ₁/ Z ₁* I ₁, G ₂b ₂/ Z ₂* I ₂, G ₃b ₃/ Z ₃* I ₃, G ₄b ₄/ Z ₄* I ₄..., G _nb _n/ Z _n* I _n)), wherein

G ₁=PB ₁/ PB ₀Or PB ₁/ (PP ₀* K*Z ₀) or (PP ₁* Z ₁)/(PP ₀* Z ₀).

G ₂=PB ₂/ PB ₀Or PB ₂/ (PP ₀* K*Z ₀) or (PP ₂* Z ₂)/(PP ₀* Z ₀).

G ₃=PB ₃/ PB ₀Or PB ₃/ (PP ₀* K*Z ₀) or (PP ₃* Z ₃)/(PP ₀* Z ₀).

G ₄=PB ₄/ PB ₀Or PB ₄/ (PP ₀* K*Z ₀) or (PP ₄* Z ₄)/(PP ₀* Z ₀).

.

.

.

G _n=PB _n/ PB ₀Or PB _n/ (PP ₀* K*Z ₀) or (PP _n* Z _n)/(PP ₀* Z ₀).

For about connecting 18070 particular conditions of considering Figure 15 of 4 interference base station sectors, the general beacon ratio report=(b of the first kind ₀/ Z ₀)/(G ₁b ₁/ Z ₁* I ₁+ G ₂b ₂/ Z ₂* I ₂+ G ₃b ₃/ Z ₃* I ₃+ G ₄b ₄/ Z ₄* I ₄) and the general beacon ratio report=(b of second type ₀/ Z ₀)/(max (G ₁b ₁/ Z ₁* I ₁, G ₂b ₂/ Z ₂* I ₂, G ₃b ₃/ Z ₃* I ₃, G ₄b ₄/ Z ₄* I ₄)), wherein

Wherein BSS 8016 is BSS ₀, BSS 8012 is BSS ₁, BSS 8026 is BSS ₂, BSS 8036 is BSS ₃And BSS 8008 is BSS ₄, and consider the availability of pilot information,

G ₁=PB ₁/ PB ₀Or PB ₁/ (PP ₀* K*Z ₀).

G ₂=PB ₂/ PB ₀Or PB ₂/ (PP ₀* K*Z ₀) or (PP ₂* Z ₂)/(PP ₀* Z ₀).

G ₃=PB ₃/ PB ₀Or PB ₃/ (PP ₀* K*Z ₀).

G ₄=PB ₄/ PB ₀Or PB ₄/ (PP ₀* K*Z ₀).

In addition, because I ₁=1, I ₂=1, I ₃=0 and I ₄=1, so general beacon ratio report equation can be reduced to: the general beacon ratio report=(b of the first kind ₀/ Z ₀)/(G ₁b ₁/ Z ₁+ G ₂b ₂/ Z ₂+ G ₄b ₄/ Z ₄), and the general beacon ratio report=(b of second type ₀/ Z ₀)/(max (G ₁b ₁/ Z ₁, G ₂b ₂/ Z ₂, G ₄b ₄/ Z ₄)), wherein

G ₁=PB ₁/ PB ₀Or PB ₁/ (PP ₀* K*Z ₀).

G ₂=PB ₂/ PB ₀Or PB ₂/ (PP ₀* K*Z ₀) or (PP ₂* Z ₂)/(PP ₀* Z ₀).

G ₄=PB ₄/ PB ₀Or PB ₄/ (PP ₀* K*Z ₀).

For about connecting 28071 particular conditions of considering Figure 15 of 4 interference base station sectors, the general beacon ratio report=(b of the first kind ₀/ Z ₀)/(G ₁b ₁/ Z ₁* I ₁+ G ₂b ₂/ Z ₂* I ₂+ G ₃b ₃/ Z ₃* I ₃+ G ₄b ₄/ Z ₄* I ₄), and the general beacon ratio report=(b of second type ₀/ Z ₀)/(max (G ₁b ₁/ Z ₁* I ₁, G ₂b ₂/ Z ₂* I ₂, G ₃b ₃/ Z ₃* I ₃, G ₄b ₄/ Z ₄* I ₄)), wherein

Wherein BSS 8026 is BSS ₀, BSS 8016 is BSS ₁, BSS 8012 is BSS ₂, BSS 8036 is BSS ₃And BSS 8008 is BSS ₄, and consider the availability of pilot information,

G ₁=PB ₁/ PB ₀Or PB ₁/ (PP ₀* K*Z ₀) or (PP ₁* Z ₁)/(PP ₀* Z ₀).

G ₂=PB ₂/ PB ₀Or PB ₂/ (PP ₀* K*Z ₀).

G ₃=PB ₃/ PB ₀Or PB ₃/ (PP ₀* K*Z ₀).

G ₄=PB ₄/ PB ₀Or PB ₄/ (PP ₀* K*Z ₀).

In addition, because I ₁=1, I ₂=1, I ₃=0 and I ₄=1, so general beacon ratio report equation can be reduced to: the general beacon ratio report=(b of the first kind ₀/ Z ₀)/(G ₁b ₁/ Z ₁+ G ₂b ₂/ Z ₂+ G ₄b ₄/ Z ₄), and the general beacon ratio report=(b of second type ₀/ Z ₀)/(max (G ₁b ₁/ Z ₁, G ₂b ₂/ Z ₂, G ₄b ₄/ Z ₄)), wherein

G ₁=PB ₁/ PB ₀Or PB ₁/ (PP ₀* K*Z ₀) or (PP ₁* Z ₁)/(PP ₀* Z ₀).

G ₂=PB ₂/ PB ₀Or PB ₂/ (PP ₀* K*Z ₀).

G ₄=PB ₄/ PB ₀Or PB ₄/ (PP ₀* K*Z ₀).

In certain embodiments, if can recover reliable pilot information from two sources, then wireless terminal attempts to use pilot signal to obtain channel gain ratio (for example, G _i).If can not recover reliable pilot information from two sources, then wireless terminal attempts to use the beacon signal that reaches from other base station section from the serving BS sector pilot signals to obtain the channel gain ratio.

Figure 16 is the graphic of the example system 8000 described in Figure 12 and Figure 13, and it comprises the exemplary signaling that received and handled by WT 8010 to be used to illustrate the exemplary beacon ratio method for reporting according to each embodiment.In the example of Figure 16, wireless terminal 8010 have use tone block 1 physical attachment point with first wireless connections 8001 BSS 8016, and use tone block 2 physical attachment points and second wireless connections 8003 simultaneously BSS 8026.About connecting the beacon ratio report that transmits on 8001, BSS 8016 is serving BS broadcasts S, is expressed as BSS sometimes ₀, and BSS 8012,8026,8036,8008 expression interference base station sectors, when mentioning, be expressed as BSS sometimes _i, for example, BSS ₁, BSS ₂, BSS ₃, BSS ₄About connecting the beacon ratio report that transmits on 8003, BSS 8026 is serving BS broadcasts S, is expressed as BSS sometimes ₀, and BSS 8012,8016,8036,8008 expression interference base station sectors, be expressed as BSS sometimes _i, for example, BSS ₁, BSS ₂, BSS ₃, BSS ₄

Wireless terminal received and handled the beacon signal 8011 that transmits and transmit among both in tone block 1 from BSS 8016 tone block 1 and tone block 2 pilot tones signal 8009.Notice that WT 18010 is that sequential is synchronous with respect to BSS 8016 tone block 1 attachment point, and therefore accurate measurement pilot.Wireless terminal receives and handles beacon signal 8017 that both transmit tone block 1 and tone block 2 and the pilot tones signal 8015 that transmits from BSS 8026 in tone block 2.Notice that WT 1 8010 is that sequential is synchronous with respect to BSS 8026 tone block 2 attachment point, and therefore accurate measurement pilot.Wireless terminal 8010 disturbs the beacon signal (8005,8021,8025) that BSS (8012,8036,8008) receives and processing transmits respectively from each tone block 1 and tone block 2.In addition, transmit uplink loading factors information signal (8013,8007,8019,8023,8027) from each of BSS (8016,8012,8026,8036,8008) respectively.These uplink loading factors information signals (8013,8007,8019,8023,8027) are transmitted as broadcast singal, but can or can not successfully recover, for example, because the transmission power level of its every tone is lower than the transmission power level of every tone of beacon.Can not successfully recover under the situation of uplink loading factors, (for example, value 1) Uses Defaults in the report of beacon ratio is calculated.

In the example of Figure 16, two connect the different tone block of use.By treat connect gain ratio that the beacon ratio report that transmits on 18001 calculates can use from the tone block 1 of base station section 8016 the beacon signal that received that reaches from other base station section of reception pilot tones signal 8009.By treat connect gain ratio that the beacon ratio report that transmits on 28003 calculates can use from the tone block 2 of base station section 8026 the beacon signal that received that reaches from other base station section of reception pilot tones signal 8015.

In some one exemplary embodiment, about base station section, from the ofdm signal of a tone block with respect to OFDM symbol accurate synchronization from another tone block.Consider that BSS uses common transmitter and generation corresponding to single OFDM symbol of three tone block, for example, comprises 339 tones single OFDM symbol of (it comprises three tone block, and each tone block has 113 tones).In some described embodiment, by treat connect gain ratio that the beacon ratio report that transmits on 18001 calculates can use from the tone block 1 of base station section 8016 reception pilot tones signal, from the tone block 1 of BSS 8026 reception pilot tones signal reach the beacon signal that received from other base station section; By treat connect gain ratio that the beacon ratio report that transmits on 28003 calculates can use from the tone block 2 of base station section 8026 reception pilot tones signal, from the tone block 2 of BSS 8016 reception pilot tones signal reach the beacon signal that received from other base station section.

Figure 17 (comprising the combination of Figure 17 A, Figure 17 B, Figure 17 C and 17D) is the flow chart 5500 according to the exemplary method of the operate wireless terminal (for example, mobile node) of each embodiment.Operation starts from step 5502, wherein to wireless terminal energising and initialization.Operation proceeds to step 5504, step 5506 and proceeds to step 5508 via connected node A 5505 from step 5502.

In step 5504, the operate wireless terminal is to receive beacon and the pilot signal that connects corresponding to first current base station.Operation proceeds to step 5510 from step 5504.In step 5510, wireless terminal by the first current base station sector connect to measure the power (PB of reception beacon signal ₀) and the power (PP of the pilot frequency channel signal that receives ₀).Operation proceeds to step 5512 from step 5510.In step 5512, wireless terminal is derived the first current connection base station section transmitter information from the reception beacon signal, for example, and BSS_slope and BSS_sector type.Step 5512 comprises substep 5513.In substep 5513, the definite power delivery layer level that is associated with the first current tone block that is connected base station section and is just using of wireless terminal.

In step 5506, (wireless terminal does not have the current connection to it) receives beacon signal and/or (wireless terminal has the current connection to it) reception beacon and pilot signal from one or more interference base station sectors to wireless terminal from one or more interference base station sectors.Have to each interference base station sector (BSS of its current connection for wireless terminal _i), operation proceeds to step 5514 from step 5506.Be each (for example, interference base station sector, described interference base station sector _i(BSS _i)) execution subsequent operation 5514,5518,5520.Do not have to each interference base station sector (BSS of its current connection for wireless terminal _i), operation proceeds to step 5516 from step 5506.Be each (for example, interference base station sector, described interference base station sector _i(BSS _i)) execution subsequent operation 5516,5522,5524.

In step 5514, wireless terminal by disturb the current base station sector to connect to measure the power (PB of reception beacon signal _i) and the power (PP of the pilot frequency channel signal that receives _i).Operation proceeds to step 5518 from step 5514.In step 5518, wireless terminal is derived the current connection base station section transmitter information of disturbing from the reception beacon signal, for example, and BSS_slope and BSS_sector type.Step 5518 comprises substep 5519.In substep 5519, wireless terminal determine one with the power delivery layer level that disturbs the current tone block that is connected base station section and is just using to be associated.

Operation proceeds to step 5520 from step 5512 and step 5518 via connected node B 5521.In step 5520, wireless terminal uses the method for substep 5538 or the method for substep 5540 or the method for substep 5541 to come the calculating channel gain ratio.In substep 5538, wireless terminal uses beacon signal information to come calculating channel gain ratio G _iSubstep 5538 comprises substep 5542, and wherein wireless terminal calculates G _i=PB _i/ PB ₀

In substep 5540, wireless terminal uses beacon signal information and pilot information to come calculating channel gain ratio G _iSubstep 5540 comprises substep 5544.In substep 5544, wireless terminal calculates G _i=PB _i/ (PP ₀* K*Z ₀), wherein K=is used for the transmitter pilot signal reference level of every tone of transmitter power beacon reference level/be used for layer 0 tone block of every tone of layer 0 tone block, and Z ₀=be used for the first current base station sector and connect the power conversion factor that transmitter power delivery layer level tone block and tone block is associated.

In substep 5541, wireless terminal uses pilot information to come calculating channel gain ratio G _iSubstep 5541 comprises substep 5546.In substep 5546, wireless terminal calculates G _i=(PP _i* Z _i)/(PP ₀* Z ₀), Z wherein ₀=be used for the power conversion factor that first current base station sector connection transmitter power delivery layer level tone block and tone block is associated, and Z _i=be used for BSS _iConnect the power conversion factor that transmitter power delivery layer level tone block and tone block is associated.Operation proceeds to step 5536 from step 5520 via connected node D 5534, and wherein wireless terminal produces one or more jamming reports.

In step 5516, wireless terminal by the interference base station sector measure the power (PB of reception beacon signal _i).Operation proceeds to step 5522 from step 5516.In step 5522, wireless terminal is derived interference base station sectored transmissions device information from the reception beacon signal, for example, and BSS_slope and BSS_sector type.Step 5522 comprises substep 5523.In substep 5523, wireless terminal is determined to reach the power delivery layer level that the tone block just used is associated with the interference base station sector.

Operation proceeds to step 5524 from step 5512 and step 5522 via connected node C 5525.In step 5524, wireless terminal uses the method for substep 5526 or the method for substep 5528 to come the calculating channel gain ratio.

In substep 5526, wireless terminal uses beacon signal information to come calculating channel gain ratio G _iSubstep 5526 comprises substep 5530, and wherein wireless terminal calculates G _i=PB _i/ PB ₀

In substep 5528, wireless terminal uses beacon signal information and pilot information to come calculating channel gain ratio G _iSubstep 5528 comprises substep 5532, and wherein wireless terminal calculates G _i=PB _i/ (PP ₀* K*Z ₀), wherein K=is used for the transmitter pilot signal reference level of every tone of transmitter power beacon reference level/be used for layer 0 tone block of every tone of layer 0 tone block, and Z ₀=be used for the current base station sector and connect the power conversion factor that transmitter power delivery layer level tone block and tone block is associated.

Operation proceeds to step 5536 from step 5524 via connected node D 5534, and wherein wireless terminal produces one or more jamming reports.

Turn back to step 5508, in step 5508, the operate wireless terminal is to receive broadcasting on-load factor information signal from the first Current Serving BTS sectored transmissions device and from interference base station sectored transmissions device.For each base station section under consideration, operation proceeds to step 5548.In step 5548, wireless terminal determines whether successfully to have recovered on-load factor from received signal.If successfully recovered on-load factor from received signal, then operation proceeds to step 5550, wherein wireless terminal memory load factor.For instance, on-load factor b ₀=be used for the on-load factor of the current first serving BS sector, and on-load factor b _k=be used for the on-load factor of interference base station section k.If successfully do not recover on-load factor from received signal, then operation proceeds to step 5552, and wherein wireless terminal is set at 1 with on-load factor.Obtain on-load factor (b ₀5554, b ₁5556 ..., b _k5558 ..b _n5560), wherein each on-load factor is derived from one in step 5550 and the step 5552.

Turn back to step 5536, in step 5536, wireless terminal produces one or more jamming reports.Step 5536 comprises substep 5562 and substep 5564.In substep 5562, wireless terminal produces the particular type report that an interference with the certain interference base station section is delivered to the first serving BS sector.Step 5562 comprises substep 5566.In substep 5566, wireless terminal report calculated value=(b ₀/ Z ₀)/(G _k* b _k/ Z _k), b wherein ₀Be the on-load factor of current service BSS, and b _kBe the on-load factor of the pairing interference of report BSS, for i=k, G _k=G _i, and Z ₀Be to be used for a current BSS to connect the power conversion factor that transmitter power delivery layer level tone block and tone block is associated, and Z _kBe to be used to report the pairing interference base station power conversion factor that the power delivery layer level sector and tone block is associated.

In substep 5564, wireless terminal (for example) uses each the information (comprising working load factor information and power conversion factor information) that records beacon signal from the interference base station sector to produce one to disturb the information of the interference of BSS to be delivered to universal classes report of the first current BSS of service one or more.Comprising four alternative exemplary that are used for the universal class report calculates as substep 5570,5572,5574,5576.The one exemplary embodiment (for example, in exemplary single-carrier operation embodiment) of universal class report is b ₀/ (∑ _kG _k* b _k).Summation is the interference BBS that can be beacon or pilot signal detection for wireless terminal _kEach.Another one exemplary embodiment (for example, in single-carrier operation embodiment) of universal class report is b ₀/ (max _k(G _k* b _k)).Another one exemplary embodiment of universal class report (for example, in exemplary multicarrier (for example three carrier waves) operation embodiment) is (b ₀/ Z ₀)/(∑ _k(I _k* G _k* b _k/ Z _k)), I wherein _kBe BSS _kUp link used indicator function whether in the current pitch piece: if BSS _kUp link now usefulness, then I _k=1; If BSS _kNon-existing usefulness, then I in the current pitch piece _k=0.Summation is the interference BBS that can be beacon or pilot signal detection for wireless terminal _kEach.Another one exemplary embodiment of universal class report (for example, in exemplary multicarrier (for example three carrier waves) operation embodiment) is (b ₀/ Z ₀)/(max _k(I _k* G _k* b _k/ Z _k)), I wherein _kBe BSS _kUp link used indicator function whether in the current pitch piece: if BSS _kUp link now usefulness, then I _k=1; If BSS _kNon-existing usefulness, then I in the current pitch piece _k=0.

In certain embodiments, step 5536 comprises quantification.For instance, 4 information bits are transmitted in the report of exemplary beacon ratio, one 16 level that its expression changes from-4dB to 28dB.The form 1100 that is used for Figure 11 of exemplary 4 downlink beacon ratios reports (DLBNR4) is described expressions.

Operation proceeds to step 5568 from step 5536, and wherein the operate wireless terminal is to be transferred to report the first Current Serving BTS sector of the current attachment point of serving as wireless terminal.In certain embodiments, the transmission of report is in response to the request from the serving BS sector.In certain embodiments, the type of the report of being transmitted (for example, specific or general) is in response to the signaling that receives of the type of reporting from the identification of base station section.In certain embodiments, to the interference that is associated with the certain base station sector report one especially the transmission of particular type report be in response to the base station signal that receives of the described certain base station of identification sector.In each embodiment, the report scheduling of following according to the wireless terminal part of Dedicated Control Channel structure (for example as) and periodically transmit jamming report.In some described embodiment, at least some jamming reports that transmitted, the base station can any report selection information in order to select to report of signaling.In certain embodiments, (for example report at two types general beacon ratio as a function of the current location in the circulation sequential organization base station, use is to from receive each the first kind of summation of information of disturbing BSS, and based on second type from the information of the poorest single interference BSS) between calculating between alternately.For instance, when the beacon slot index in the overtime crack is even number, calculate the general beacon ratio report of the first kind, and when the beacon slot index in the overtime crack is odd number, calculate the general beacon ratio report of second type.In certain embodiments, WT only sends general beacon ratio report acquiescently, and only sends the report of specified beacon ratio when being sent the report of specified beacon ratio by base station requests.

In certain embodiments, system comprises a plurality of power delivery layer level (for example, three), and described level has the different power conversion factor that is associated with each layer level.For instance, in an one exemplary embodiment, the power conversion factor of 0dB is associated with layer level 0 tone block, and the power conversion factor of 6dB is associated with layer 1 level tone block, and the power conversion factor of 12dB is associated with layer 2 tone block.In certain embodiments, each attachment point is corresponding to a base station section transmitter and a tone block, and each attachment point BSS transmitter tone block can be associated with a power delivery layer level.In certain embodiments, there are a plurality of downlink tone block, for example, three tone block (tone block 0, tone block 1, tone block 2), each tone block has 113 continuous evenly spaced tones.In certain embodiments, the same tone block of being used by different base station sectored transmissions device (for example, tone block 0) has the different capacity transport layer level that is associated with different base station sectored transmissions device.Wireless terminal (for example, from the information of transmitting via its beacon signal, use tone locations and/or time location to discern a special connection point corresponding to base station section transmitter and tone block with circle transmission pattern) can use stored information make the attachment point of discerning and certain power transport layer level and the power conversion factor that is used for the specific tone piece be associated.

In certain embodiments, on-load factor (for example, b _k) be more than or equal to 0 and be less than or equal to 1 value.In certain embodiments, described value is sent to wireless terminal from base station section, represent a plurality of level (for example, 0dB ,-1dB ,-2dB ,-3dB ,-4dB ,-6dB ,-9dB, negative infinite dB) in one.The exemplary uplink loading factors information that form 950 explanation of Figure 10 can be transmitted via downlink broadcast channel by base station section.

In certain embodiments, no matter the power delivery layer that is associated with the tone block of just using transmits beacon signal with equal-wattage from the base station section transmitter; Yet the power delivery layer that other down link signal (for example, pilot signal) is subjected to be associated with the tone block that is used for the base station section transmitter influences.In certain embodiments, parameter K is the value more than or equal to 6dB.For instance, in an one exemplary embodiment, parameter K=23.8dB-7.2dB=16.6dB.

Figure 18 is used for graphic 1800 of the exemplary sequential organization information of an one exemplary embodiment and corresponding interference report information (for example, beacon ratio report report information).Described exemplary sequential organization comprises as the indicated overtime crack of up link of row 1802, follows by the overtime crack of the up link of index=1 in the overtime crack of up link of row 1802 display indexs=0.In an exemplary embodiment, each overtime crack comprises the beacon slot as 18 indicated tool indexes of row 1804.Each beacon slot is including (for example) 912 continuous OFDM symbol transmission time periods.In this one exemplary embodiment, wireless terminal can (for example) report via two kinds of dissimilar beacon ratios of Dedicated Control Channel Duan Xiangyi serving BS sector report that the beacon ratio report of the first kind is that the beacon ratio report of the general beacon ratio report and second type is specified beacon ratio report (being known as the report of special beacon ratio sometimes).The beacon ratio report of the first kind is general beacon ratio report and the general beacon ratio report of using two seed categories.The report value as the function of being sued for peace in one or more interference base station sectors is determined in the general beacon ratio report of first subtype.The report value as the function of maximum (for example, aspect the interference value the most indivedual base station sections of poor situation) is determined in the general beacon ratio report of second subtype.Indicated as row 1806, the subtype of general beacon ratio report to be used is the function of beacon slot index.For the even number value (0,2,4,6,8,10,12,14,16) of beacon slot index, wireless terminal uses summing function to determine described report when the general beacon ratio of transmission is reported.For the odd number value (1,3,5,7,9,11,13,15,17) of beacon slot index, wireless terminal uses max function to determine described report when the general beacon ratio of transmission is reported.Row 1808 indication: wireless terminal transmits the report corresponding to base station section when the report of transmission specified beacon ratio, and described base station section is discerned in request and had a sectors type for the function of beacon slot exponential quantity.For instance, consider to use three kinds of different sectors type (sectors type 0, sectors type 1, and sectors type 2).One request signal from the beacon ratio report of the request particular type of serving BS sector can comprise cell identifier value (for example, slope value), and the up link sequential organization that wherein transmits described report can be determined sectors type.For instance, beacon slot for index=(0,3,6,9,12,15), wireless terminal is when the report of report specified beacon ratio, and report one makes serving BS sector and the relevant specified beacon ratio report of another base station section of being discerned and having sectors type=0 by transmission cell identifier value.Beacon slot for index=(1,4,7,10,13,16), wireless terminal is when the report of report specified beacon ratio, and report one makes serving BS sector and the relevant specified beacon ratio report of another base station section of being discerned and having sectors type=1 by transmission cell identifier value.Beacon slot for index=(2,5,8,11,14,17), wireless terminal when the report of report specified beacon ratio, report one make the serving BS sector with by one the cell identifier value that transmits discern and have the relevant specified beacon ratio of another base station sections of sectors type=2 and report.

Should observe, by implementing this reporting format based on the scheduled timing structure that base station and wireless terminal are all understood, system supports multiple reporting format, simultaneously the amount of limitation signaling overhead.In addition, should observe, report for the specified beacon ratio, partly by being contained in the information in the request signal and partly obtaining identification to the base station section of being paid close attention to by the position in the up link sequential organization, so the overhead signaling needs less bits to discern the base station section of being paid close attention to.

Figure 19 illustrates exemplary beacon ratio report request downlink signaling and exemplary up link beacon ratio report signaling at an one exemplary embodiment in graphic 1900.In Figure 190 0, base station section 1902 (the current attachment point that is used for wireless terminal 1904) sends the downlink traffic channel control signal 1906 of one (for example) as the fast glitch part of downlink traffic control channel, and it comprises the information in the request field 1908 of beacon ratio report.In certain embodiments, comprise the signal of the request field of beacon ratio report is (for example) set broadcast singal that uses for a plurality of wireless terminals.Therefore, indivedual control signals are used through connecting wireless terminal for a plurality of through broadcasting, thereby are reduced in when controlling each wireless terminal individually with respect to the type of jamming report to be sent originally the level with the overhead control signaling of needs.In certain embodiments, single can be to beacon ratio report request down link signal corresponding to reporting by a plurality of uplink channel interference that wireless terminal transmits.In certain embodiments, single request down link signal to the report of beacon ratio is reported corresponding to the single uplink channel interference of indivedual wireless terminals.In certain embodiments, single request down link signal to beacon ratio report is corresponding to each single interference up link report of a plurality of different radio terminals.The value that the request field of beacon ratio report is comprised an indication described request.Form 1901 is exemplary request field to the report of beacon ratio, and its report can be by the form of BSS 1902 and WT 1904 uses.The value that first row, 1918 order reports of form 1901 are transmitted; Secondary series 1920 comprises the information that respective value is transmitted.If described value is zero, then wireless terminal will be reported general beacon ratio report.If described value is a non-zero positive integer, then wireless terminal will be reported specified beacon ratio report, and described value is corresponding to a cell identifier parameter of being used by the base station section of being paid close attention to, for example, and slope value.In certain embodiments, described slope value is the value corresponding to the slope of pilot tones signal.Yet, in certain embodiments, a plurality of base station sections in the same sub-district use identical slope value, and therefore, the up link time sequence information is also in order to determine to be ready to use in the certain base station sector of being paid close attention to of a specific concrete beacon ratio report (for example, by the indicated time sequence information of row 1808).

In some other embodiment, wireless terminal transmits the report of the first kind acquiescently, and transmits the report of second type when the request signal to the report of beacon ratio is transmitted.For instance, can transmit the report of general beacon ratio acquiescently, and if the base station want to transmit the report of particular type beacon ratio, then the request signal to the report of beacon ratio that comprises cell identifier information is transmitted in the base station.

Dedicated Control Channel segment signal 1910 comprises the beacon ratio report 1912 according to solicited message and up link sequential organization information.Dedicated Control Channel segment signal 1914 comprises the beacon ratio report 1916 according to solicited message and up link sequential organization information.For instance, consider request field 1908 transmission value 0, report 1912 is reported corresponding to the beacon ratio that transmits during the beacon slot of index=0, and report 1916 corresponding to the beacon ratio report that transmits during the beacon slot of index=1.Beacon ratio report 1912 is to use summing function to come the general beacon ratio report of report calculated value, and described report makes the detected base station section of same tone block be associated with the serving BS sector; Beacon ratio report 1916 is to use max function to come the general beacon ratio report of report calculated value, and described report makes the detected base station section of same tone block be associated with the serving BS sector.Now consider request field 1908 transmission values 1, report 1912 is reported corresponding to the beacon ratio that transmits during the beacon slot of index=0, and report 1916 corresponding to the beacon ratio report that transmits during the beacon slot of index=1.Beacon ratio report 1912 is specified beacon ratio reports that Current Serving BTS sector attachment point is associated with local base station section, and described local base station section is by slope value=1 identification and have the also use tone block identical with the serving BS sector of sectors type=0; Beacon ratio report 1916 is specified beacon ratio reports that Current Serving BTS sector attachment point is associated with local base station section, and described local base station section is by slope value=1 identification and have the also use tone block identical with the serving BS sector of sectors type=1.

Figure 20 is the graphic of the example communications system 2000 implemented according to each embodiment.Example communications system 2000 comprises a plurality of base stations (BS 1 2001, BS 2 2002, BS 3 2003, BS 4 2004, BS 5 2005, BS 6 2006, BS 7 2007, BS 8 2008, BS 9 2009, BS 10 2010) that are coupled via backhaul network.Described BS (2001,2002,2003,2004,2005,2006,2007,2008,2009,2010) is three sector base stations.BS 1 2001 comprises: first sector 2012 of slope value=2 and sectors type value=0; Second sector 2014 of slope value=2 and sectors type value=1; And the 3rd sector 2016 of slope value=2 and sectors type value=2.BS 22002 comprises: first sector 2018 of slope value=1 and sectors type value=0; Second sector 2020 of slope value=1 and sectors type value=1; And the 3rd sector 2022 of slope value=1 and sectors type value=2.BS 3 2003 comprises: first sector 2024 of slope value=1 and sectors type value=0; Second sector 2026 of slope value=1 and sectors type value=1; And the 3rd sector 2028 of slope value=1 and sectors type value=2.BS 4 2004 comprises: first sector 2030 of slope value=2 and sectors type value=0; Second sector 2032 of slope value=2 and sectors type value=1; And the 3rd sector 2034 of slope value=2 and sectors type value=2.BS 5 2005 comprises: first sector 2036 of slope value=3 and sectors type value=0; Second sector 2038 of slope value=3 and sectors type value=1; And the 3rd sector 2040 of slope value=3 and sectors type value=2.BS 6 2006 comprises: first sector 2042 of slope value=4 and sectors type value=0; Second sector 2044 of slope value=4 and sectors type value=1; And the 3rd sector 2046 of slope value=4 and sectors type value=2.BS 7 2007 comprises: first sector 2048 of slope value=5 and sectors type value=0; Second sector 2050 of slope value=5 and sectors type value=1; And the 3rd sector 2052 of slope value=5 and sectors type value=2.BS 8 2008 comprises: first sector 2054 of slope value=6 and sectors type value=0; Second sector 2056 of slope value=6 and sectors type value=1; And the 3rd sector 2058 of slope value=6 and sectors type value=2.BS 9 2009 comprises: first sector 2060 of slope value=7 and sectors type value=0; Second sector 2062 of slope value=7 and sectors type value=1; And the 3rd sector 2064 of slope value=7 and sectors type value=2.BS 10 2010 comprises: first sector 2066 of slope value=8 and sectors type value=0; Second sector 2068 of slope value=8 and sectors type value=1; And the 3rd sector 2070 of slope value=8 and sectors type value=2.

Example communications system 2000 also comprises a plurality of wireless terminals.Exemplary WTA 2072 and exemplary WT B 2072 are shown as respectively and are connected to 52,005 second sectors 2038, base station via Radio Link (2076,2078).52,005 second sectors, base station, 2038 attachment point send broadcast downlink Traffic Channel control signal, and described signal (for example) comprises as the request word segment value to the report of beacon ratio indicated among Figure 19.WT A 2072 is in the open operation state, and has been assigned up link Dedicated Control Channel section to be used to transmit the up link control report, and some in the described up link report will be jamming report, for example, and the report of beacon ratio.Similarly, WT B 2074 is in the open operation state, and has been assigned up link Dedicated Control Channel section to be used to transmit the up link control report, and some in the described up link report will be jamming report, for example, and the report of beacon ratio.Described WT (2072,2074) receives the solicited message to the report of beacon ratio of broadcasting when determining the type of beacon ratio report to be transmitted.In certain embodiments, described information is used for determining to wait to be contained in the information of uplink channel interference report in conjunction with sequential organization information.

Should observe, the slope value that is used as base station identifiers is local unique, but also not exclusive in system 2000.For instance, slope value=1 is used as cell identifier by BS 1 2001 and BS 3 2003.Yet, between WT and base station attachment point, which base station to be that set objective does not exist ambiguity with regard to.By using local unique base station identifiers, opposite with system unique base station identifiers, in the control signaling, reduce the required bits number in expression base station, thereby allowed in utilizing the system of a large amount of base stations, to reduce control signaling overhead.Same principle can (and in each embodiment really) be used to comprise the base station of a large amount of sectors.For instance, exemplary five sector base stations can use three kinds of different sectors type, and wherein both of sectors type value are used twice.

Figure 21 for explanation corresponding to graphic 2100 of the exemplary downlink control signaling of the system 2000 of Figure 20 and uplink channel interference report (for example, beacon ratio report).First row 2104 comprises timeline, and it is indicated corresponding to the different base station sectors type, and when the particular report that the beacon ratio is reported is possible.In this example, there are three kinds of different sectors type (sectors type 0, sectors type 1, and sectors type 2).According to this embodiment, alternately, for example, wherein each frame table shows the time interval (referring to Figure 18) of beacon slot to the report structure between three types.2106 indications of second row are contained in the value request (referring to Figure 19) to the report of beacon ratio in the broadcast downlink business control channel signal.The third line 2108 indication Report Type that WTA transmitted, wherein general report of G=and S=particular report.Fourth line 2110 is that WT A particular report is indicated when calculating particular report base station and the base station section type used.The Report Type that fifth line 2112 indication WT B are transmitted, wherein general report of G=and S=particular report.The 6th row 2114 is that WT B particular report is indicated when calculating particular report base station and the base station section type used.

First value of row 2106 is 0, and the corresponding jamming report of its indication should be the universal class report.Therefore WT A and WT B all transmit general up link beacon ratio report.Second value of row 2106 is 4, and the corresponding report of its indication should be the particular type report corresponding to the local base station section that uses slope value=4.The time that is used for corresponding up link beacon ratio report is in the beacon slot that is used for sectors type 0.Therefore, WT is transferred to BS 5 sectors 2038 with the report of specified beacon ratio, thereby makes 6 sectors type, 0 sector 2042, base station relevant with 5 sectors type, 1 sector 2038, base station.The the 3rd and the 4th value of row 2106 is 0, and therefore corresponding beacon ratio is reported as general beacon ratio report.The 5th value of row 2106 is 1, and the corresponding report of its indication should be the particular type report corresponding to the local base station section that uses slope value=1.The time that is used for corresponding up link beacon ratio report is in the beacon slot that is used for sectors type 2.Therefore, WT is transferred to BS 5 sectors 2038 with the report of specified beacon ratio, thereby makes 3 sectors type, 2 sectors 2028, base station relevant with 5 sectors 12038, base station.The 6th value of row 2106 is 0, and therefore corresponding beacon ratio is reported as general beacon ratio report.The 7th value of row 2106 is 2, and its order report should be the particular type report corresponding to the local base station section that uses slope value=2.The time that is used for corresponding up link beacon ratio report is in the beacon slot that is used for sectors type 0.Therefore, WT is transferred to BS 5 sectors 2038 with the report of specified beacon ratio, thereby makes 4 sectors type, 0 sector 2030, base station relevant with 5 sectors 12038, base station.The the 8th, the 9th and the tenth value of row 2106 is 0, and therefore corresponding beacon ratio is reported as general beacon ratio report.The 11 value of row 2106 is 2, and its order report should be the particular type report corresponding to the local base station section that uses slope value=2.The time that is used for corresponding up link beacon ratio report is in the beacon slot that is used for sectors type 2.Therefore, WT is transferred to BS 5 sectors 2038 with the report of specified beacon ratio, thereby makes 4 sectors type, 2 sectors 2034, base station relevant with 5 sectors 12038, base station.The the 12, the 13 and the 14 value of row 2096 is 0, and therefore corresponding beacon ratio is reported as general beacon ratio report.

In this one exemplary embodiment, in sequential organization, the downlink control channel signal of the request of beacon ratio report reported between the chance with the corresponding uplink channel interference of WT there is fixed relationship comprising, for example, indicated as dotted arrow.Base station and wireless terminal are all understood, and this link in the sequential organization can reduce the overhead signaling.In this one exemplary embodiment, WT A and the different time points of WT B in the up link sequential organization are transmitted its up link beacon ratio report corresponding to same request.For other embodiment and/or other wireless terminal, can (for example) use the different tones in the tone block to transmit described report simultaneously.In addition, in certain embodiments, (for example) in the given time interval, the frequency that WT reports can be different from the frequency that a different radio terminal is reported, because a wireless terminal can be in the different report operator schemes with respect to another wireless terminal.

Though be illustrated for two exemplary wireless terminal, should be appreciated that, in certain embodiments, to the same request of beacon ratio report broadcasting control signal can (and certain sometimes) by the many extra wireless terminal utilization of using described base station section attachment point.For instance, consider an one exemplary embodiment, wherein the base station section attachment point can have nearly 31 while opening users, and each on the described opening user receives a Dedicated Control Channel to be used to transmit the uplink control channel report that comprises the report of beacon ratio, and each opening user can receive and utilize the same broadcast request to beacon ratio report down link signal.

Figure 22 is graphic according to the flow chart 2200 of the exemplary method of the operate wireless terminal of each embodiment.Described exemplary method starts from the step 2202, wherein to wireless terminal energising and initialization.Operation proceeds to step 2204,2206,2208 from beginning step 2202, and proceeds to step 2210 in certain embodiments.In step 2204, wireless terminal monitors is to detect the received broadcast signal that transmits uplink loading factors, and each broadcast uplink on-load factor is corresponding to an attachment point.In step 2206, the operate wireless terminal to be to receive first signal from first attachment point, for example, and beacon or pilot signal.In step 2208, the operate wireless terminal to be to receive secondary signal from second attachment point, for example, and beacon or pilot signal.In step 2210, when carrying out, the operate wireless terminal to be to receive the 3rd signal from the 3rd attachment point, for example, and beacon or pilot signal.

Operation proceeds to step 2226 from step 2206, and wherein wireless terminal is carried out first measurement to receive first signal, for example, and signal power measurement.Operation proceeds to step 2228 from step 2208, and wherein wireless terminal is carried out second measurement to the reception secondary signal, for example, and signal power measurement.Operation proceeds to step 2230 from step 2210, and wherein wireless terminal is carried out the 3rd measurement to receive the 3rd signal, for example, and signal power measurement.Operation proceeds to step 2232 from step 2226,2228 and 2230.

Turn back to step 2204, in step 2204, wireless terminal output institute receiving uplink on-load factor information, described information is through transmitting to be used for step 2232.Corresponding to first attachment point (wireless terminal has connection at the described first attachment point place), the wireless terminal output first uplink loading factors information 2212 that receives.Corresponding to second attachment point, wireless terminal can or still can't detect and recover uplink loading factors.In step 2214, if wireless terminal has detected and has recovered uplink loading factors corresponding to second attachment point, then wireless terminal transmit the second uplink loading factors information 2216 that receives for being used for step 2232.Yet, if wireless terminal does not detect as yet and recovers uplink loading factors corresponding to second attachment point, then in step 2218, wireless terminal (for example is set at default value with second uplink loading factors, value 1), described default value will be used for step 2232.Corresponding to the 3rd attachment point, wireless terminal can or still can't detect and recover uplink loading factors.In step 2220, if wireless terminal has detected and has recovered uplink loading factors corresponding to the 3rd attachment point, then wireless terminal transmit the 3rd uplink loading factors information 2222 that receives to be used for step 2232.Yet, if wireless terminal does not detect as yet and recovers uplink loading factors corresponding to the 3rd attachment point, then in step 2224, wireless terminal (for example is set at default value with the 3rd uplink loading factors, value 1), described default value will be used for step 2232.

In step 2232, wireless terminal is based on to the measurement of first signal, corresponding to first receiving uplink on-load factor of first attachment point and use second result who measures to produce the uplink channel interference report.Step 2232 comprises step 2234, and wherein wireless terminal is determined the ratio of first and second value, and described first value is the result's of first on-load factor and first signal measurement the function of product, and wherein said second value is second second result's who measures a function.In certain embodiments, second value is still corresponding to second on-load factor of second attachment point and the function of the result's of secondary signal measurement product.

At some embodiment (for example, wherein being used for producing some embodiment of jamming report from three of three different attachment point or three above received signals), step 2234 comprises step 2236.In step 2236, wireless terminal uses the 3rd result who measures to produce second value.Step 2236 comprises substep 2238 and substep 2240, carries out one in the described substep to produce jamming report.In certain embodiments, at the different time place, use the different persons in the substep 2238 and 2240 to produce jamming report.In substep 2238, wireless terminal is to the 3rd and the 4th value summation, and described the 3rd value is the result's of secondary signal measurement a function, and described the 4th value is the result's of the 3rd signal measurement a function.In substep 2240, wireless terminal is set at the maximum of the 3rd and the 4th value with second value, and described the 3rd value is the result's that measures of secondary signal a function, and described the 4th value is the result's of the 3rd signal measurement a function.

Operation proceeds to step 2242 from step 2232.In step 2242, wireless terminal transmission is reported from institute's uplink channel interference that produces of step 2232.

In certain embodiments, first and second signal is an ofdm signal.In some other embodiment, first and second signal is the CDMA signal.

In certain embodiments, at least some jamming reports, produce first value: the b according to following equation ₀PB ₀And produce second value: the b according to following equation ₁PB ₁+ b ₂PB ₂B wherein ₀It is on-load factor corresponding to first attachment point; PB wherein ₀Be the power that records from the beacon signal that receives of first attachment point; B wherein ₁It is on-load factor corresponding to second attachment point; PB wherein ₁Be the power that records from the beacon signal that receives of second attachment point; B wherein ₂It is on-load factor corresponding to the 3rd attachment point; And PB wherein ₂Be the power that records from the beacon signal that receives of the 3rd attachment point.

In certain embodiments, at least some jamming reports, produce first value: the b according to following equation ₀PB ₀And produce second value according to following equation: MAX (b ₁PB ₁, b ₂PB ₂); B wherein ₀It is on-load factor corresponding to first attachment point; PB wherein ₀Be the power that records from the beacon signal that receives of first attachment point; B wherein ₁It is on-load factor corresponding to second attachment point; PB wherein ₁Be the power that records from the beacon signal that receives of second attachment point; B wherein ₂It is on-load factor corresponding to the 3rd attachment point; And PB wherein ₂Be the power that records from the beacon signal that receives of the 3rd attachment point.

Figure 23 is the graphic of the exemplary wireless terminal 2300 implemented according to each embodiment.Exemplary wireless terminal 2300 comprises receiver module 2302, transmitter module 2304, processor 2306, the user I/O device 2308 that is coupled via bus 2312, and memory 2310, each element can be on described bus swap data and information.Memory 2310 comprises routine 2318 and data/information 2320.Processor 2306 (for example, CPU) executive routine 2318 and use data/information 2320 in the memory 2310 to control the operation and the implementation method of wireless terminal 2300.

Receiver module 2302 (for example, the OFDM receiver) is coupled to reception antenna 2314, from base station attachment point receiving downlink signal, described down link signal comprises the broadcast singal that transmits up link attachment point on-load factor, beacon signal and pilot signal to wireless terminal 2300 via described reception antenna.Transmitter module 2304 (for example, the OFDM transmitter) is coupled to transmit antenna 2316, wireless terminal 2300 is transferred to the base station attachment point via described transmit antenna with uplink signal, described uplink signal comprises the jamming report that produces, for example, the beacon ratio report that transmits via the Dedicated Control Channel section.In certain embodiments, the same antenna (for example, in conjunction with duplex module) is used for receiver and transmitter.In some other embodiment, transmitter module 2304 is that CDMA transmitter and receiver module 2302 are CDMA receivers.In certain embodiments, transmitter module 2304 and/or receiver module 2302 are supported OFDM and CDMA signaling.

I/O device 2308 comprises, for example, and microphone, keyboard, keypad, switch, video camera, loud speaker, display etc.I/O device 2308 allows user input data/information, access dateout/information, the controlling application program of WT 2300, and at least some functions of control WT 2300, for example, and the initiation communication session.

Routine 2318 comprises communication routines 2322 and wireless terminal control routine 2324.The various communication protocols that communication routines 2322 is implemented by wireless terminal 2300 uses.Wireless terminal control routine 2324 comprises uplink loading factors signal monitoring module 2326, on-load factor determination module 2328, first measurement module 2330, second measurement module 2332, and jamming report generation module 2334.

Uplink loading factors signal monitoring module 2326 detects the received broadcast signal that transmits at least one uplink loading factors, and each broadcast uplink on-load factor is corresponding to an attachment point.First measurement module 2330 is measured the received signal of the first kind, and for example, first measurement module 2330 is beacon signal measurement modules of measuring the beacon signal that receives.First signal measurement module 2330 comprises the signal power measurement module 2331 of the power of measuring the beacon signal that receives.Second measurement module 2332 is measured the received signal of second type, and for example, second measurement module 2332 is pilot signal measurement module of measuring the pilot signal that receives.Second measurement module 2332 comprises the signal power measurement module 2333 of the power of measuring the pilot signal that receives.

Jamming report generation module 2334 is based on produce the uplink channel interference report to the measurement of first received signal (for example, the beacon that receives or pilot signal) and corresponding to first receiving uplink on-load factor of first attachment point.In each embodiment, the jamming report generation module uses the measurement from the secondary signal (for example, the beacon that receives or pilot signal) of second attachment point is produced uplink channel interference report.The jamming report generation module comprises the first value generation module 2336, the second value generation module 2338, summation module 2342, and maximum-value selector module 2344.The second value generation module 2338 comprises multiplication module 2340.

The first value generation module 2336 produces first value 2384 as the function of the result's of first on-load factor and first signal measurement product.For instance, first on-load factor can be corresponding to the attachment point of current connection, and described attachment point is used as its attachment point by wireless terminal, and first signal can be the beacon that receives or pilot signal from the attachment point of current connection.

The second value generation module 2338 produce as second result who measures (for example, to from the attachment point that is different from the employed attachment point of the first value generation module the result of measurement of the beacon that receives or pilot signal) second value 2386 of function.For instance, secondary signal can be derived from the nearby sectors of current service attachment point and/or the attachment point in the adjacent cell.

Multiplication module 2340 is used to produce the result's who measures corresponding to second on-load factor and the secondary signal of second attachment point product.

In certain embodiments, jamming report generation module 2334 uses the 3rd result who measures from the 3rd signal of the 3rd attachment point is produced described second value, thereby produces the report of at least one uplink channel interference.

2342 pairs the 3rd of summation modules and the 4th value (2388,2390) summation, described the 3rd value is the result's of secondary signal measurement a function, described the 4th value is the result's of the 3rd signal measurement a result function.In certain embodiments, at least some jamming reports, produce first value: the b according to following equation ₀PB ₀Produce second value: the b according to following equation ₁PB ₁+ b ₂PB ₂B wherein ₀It is on-load factor corresponding to first attachment point; PB wherein ₀Be the power that records from the beacon signal that receives of first attachment point; B wherein ₁It is on-load factor corresponding to second attachment point; PB wherein ₁Be the power that records from the beacon signal that receives of second attachment point; B wherein ₂It is on-load factor corresponding to the 3rd attachment point; And PB wherein ₂Be the power that records from the beacon signal that receives of the 3rd attachment point.

Maximum section modules 2344 is set at second value maximum of the 3rd and the 4th value (2388,2390) when being utilized, described the 3rd value is the result's of secondary signal measurement a function, and described the 4th value is the result's of the 3rd signal measurement a function.In certain embodiments, at least some jamming reports, produce first value: the b according to following equation ₀PB ₀And produce second value according to following equation: MAX (b ₁PB ₁, b ₂PB ₂); B wherein ₀It is on-load factor corresponding to first attachment point; PB wherein ₀Be the power that records from the beacon signal that receives of first attachment point; B wherein ₁It is on-load factor corresponding to second attachment point; PB wherein ₁Be the power that records from the beacon signal that receives of second attachment point; B wherein ₂It is on-load factor corresponding to the 3rd attachment point; And PB wherein ₂Be the power that records from the beacon signal that receives of the 3rd attachment point.

In certain embodiments, at least some jamming reports that produced, at least some in first, second and third signal measurement are the measurements to pilot frequency channel signal.In certain embodiments, conversion factor is with so that the through-put power of the through-put power of pilot signal and beacon signal is relevant and/or make from the through-put power of the pilot signal of an attachment point and be correlated with the through-put power from the pilot signal of different attachment point.

In certain embodiments, jamming report generation module 2344 is supported the generation of the report of number of different types: for example, particular report, it makes the Current Serving BTS attachment point with single relevant through discerning other base station attachment point; The general report of first subtype, it makes Current Serving BTS and one or more (for example, a plurality of) other base station sections (from its received signal, for example, beacon and/or pilot signal) relevant and use the sum-type function when producing report; And the general report of second subtype, its make Current Serving BTS attachment point and one or more (for example, a plurality of) other base station sections (from its received signal, for example, beacon and/or pilot signal) relevant and when producing report use sum-type function.

On-load factor determination module 2328 is set at default value with on-load factor not corresponding to the on-load factor of the successful reception of the attachment point of being paid close attention to the time.For instance, on-load factor determination module 2328 is set at default value with second on-load factor not from second on-load factor of the successful reception of second attachment point time.

Data/information 2320 comprises the beacon signal information that receives 2346, the pilot information that receives 2348, institute's receiving uplink on-load factor information 2350, records beacon message 2352, records pilot frequency information 2354, gives tacit consent to uplink loading factors information 2356, and interference report information 2358.The beacon signal information that receives 2346 can comprise the beacon signal information that receives corresponding to each attachment point (attachment point 1 information 2360 ..., attachment point N information 2362).The pilot information that receives 2348 can comprise the pilot information that receives corresponding to each attachment point (attachment point 1 information 2364 ..., attachment point N information 2366).Institute's receiving uplink on-load factor information 2350 can comprise institute's receiving uplink on-load factor information corresponding to each attachment point (attachment point 1 information 2368 ..., attachment point N information 2370).Record beacon signal information 2352 can comprise corresponding to each attachment point record beacon signal information (attachment point 1 information 2372 ..., attachment point N information 2374).Record pilot information 2354 can comprise corresponding to each attachment point record pilot information (attachment point 1 information 2376 ..., attachment point N information 2378).Acquiescence uplink loading factors information 2356 can comprise acquiescence uplink loading factors information corresponding to various attachment point (attachment point 1 information 2380 ..., attachment point N information 2382).

At preset time place, through storage and the mixing that is used to produce the information of uplink channel interference report can be different from mixing at another time point place canned data.For instance, locate in a preset time, wireless terminal can comprise the pilot signal that receives and the beacon signal information corresponding to attachment point 1, the beacon signal information that receives corresponding to attachment point 2, the beacon signal information that receives corresponding to attachment point 3, institute's receiving uplink on-load factor information corresponding to attachment point 1, institute's receiving uplink on-load factor information corresponding to attachment point 2, the pilot information that records corresponding to attachment point 1, the beacon signal information that records corresponding to attachment point 1, the beacon signal information that records corresponding to attachment point 2, corresponding to the beacon signal information that records of attachment point 3, reach acquiescence uplink loading factors information corresponding to attachment point 3.Continue described example, locate in another preset time, wireless terminal can comprise the pilot signal that receives and the beacon signal information corresponding to attachment point 1, the beacon signal information that receives corresponding to attachment point 2, corresponding to attachment point 3 the pilot signal that receives and the beacon signal information that receives, institute's receiving uplink on-load factor information corresponding to attachment point 1, institute's receiving uplink on-load factor information corresponding to attachment point 3, the pilot information that records corresponding to attachment point 1, the beacon signal information that records corresponding to attachment point 1, record the beacon beacon message corresponding to attachment point 2, the pilot information that records corresponding to attachment point 3, corresponding to the beacon signal information that records of attachment point 3, reach acquiescence uplink loading factors information corresponding to attachment point 2.

Interference report information 2358 comprise first value 2384, second value 2386, the 3rd value 2388, the 4th value 2390 and be worth 2392, maximum 2394, definite ratio 2396, and quantize report value 2398.First value 2384 is results of the computing of the first value generation module 2366, and second value 2386 is results of the computing of the second value generation module 2338.The the 3rd and the 4th value (2388,2390) is the intermediate treatment value that is used to produce at least some jamming reports (for example, consideration is from the jamming report of the information of different attachment point more than three or three).With value 2392 are results by the computing of summation module 2342.Maximum 2394 is results of the computing of maximum section modules 2344.Definite ratio be definite ratio of first and second value of determining by the jamming report generation module.Quantizing report value 2398 is by treat to transmit the value with one in a plurality of quantization levels that transmit definite ratio 2396 in jamming report.

Figure 24 (comprising the combination of Figure 24 A and Figure 24 B) is the flow chart 2400 of the exemplary method of operate wireless terminal.Described exemplary method starts from step 2402, wherein to described wireless terminal energising and initialization.Operation proceeds to step 2404,2406 and 2408 from beginning step 2402.

In step 2404, wireless terminal receives base station identification information, and it comprises the control signal of the unique base station identifiers (second attachment point is positioned at this place) in a transmission part.In step 2406, wireless terminal receives first signal from first attachment point (wireless terminal have with it be connected), for example, and beacon signal or pilot signal.In step 2408, wireless terminal is from one or more attachment point received signals except that described first attachment point, for example, and beacon and/or pilot signal.Step 2406 comprises substep 2412, and wherein wireless terminal receives secondary signal from second attachment point, for example, beacon or pilot signal, from the described base station identification information that receives of step 2404 corresponding to second attachment point.Step 2406 each time the place comprise corresponding to one or more extra substeps from the received signal (for example, the beacon that receives and/or pilot signal) of extra attachment point.For instance, in substep 2414, wireless terminal receives n-signal from the N attachment point, for example, and beacon or pilot signal.

Operation proceeds to step 2410 from step 2406.In step 2410, wireless terminal is carried out first to receive first signal and is measured, for example, and to the power measurement of receive first signal.Operation proceeds to step 2416 from substep 2412.In step 2416, wireless terminal is carried out second to the reception secondary signal and is measured, for example, and to the power measurement of reception secondary signal.Operation proceeds to step 2418 from substep 2414.In step 2418, wireless terminal is carried out N to receive n-signal and is measured, for example, and to the power measurement of receive n-signal.

In some embodiment (for example, using some embodiment of multi-sector base stations), operation proceeds to step 2420 from step 2416.In other embodiment (for example, every sub-district has some embodiment of single sector base stations), operation proceeds to step 2422 from step 2416.

In step 2420, wireless terminal is from definite sector identifier corresponding to the reception base station identifiers of the time that receives control signal, and the sector of second attachment point is served as in described sector identifier identification.In certain embodiments, determine sector identifier as the function of the time slot in storage sequential organization information and the pairing loop structure of described received signal time.

Operation proceeds to step 2422 from step 2420.In step 2422, wireless terminal is as the function of reception base station identification information and discern secondary signal from one or more received signals corresponding to the step 2408 of different attachment point.Operation proceeds to step 2424 from step 2422.

In step 2424, wireless terminal is based on producing report to the measurement of first and second signal, for example, and the jamming report of certain interference report for example.In certain embodiments, described report is a jamming report, and it is the ratio of first value and second value, and first value is the function that records power of first signal, and second value is the function that records power of secondary signal.Operation proceeds to step 2426 from step 2424.In step 2426, wireless terminal receives control signal determines to transmit the report that produces as the predefined function of the time of transmission time control input transmission time according to use.In certain embodiments, predefined function determine the transmission time be corresponding to the time place of the fixedly predetermined migration of the time that receives control signal.

Operation proceeds to step 2428 from step 2426, and the wherein transmission report that produces for example, makes the relevant particular type jamming report that produces of two attachment point.Operation proceeds to step 2432 from step 2428 via connected node A2430.In step 2432, wireless terminal receives control signal, and its indication jamming report will be based on the signal that receives from a plurality of different transmitters except that described first attachment point.Operation proceeds to step 2434 from step 2432.In step 2434, wireless terminal is measured carrying out from described a plurality of different transmitters and from described a plurality of signals that first attachment point receives.Operation proceeds to step 2436 from step 2434.

In step 2436, wireless terminal produces report, for example, based on from from the value that the result derived of the described signal of different transmitters and and maximum one jamming report.For instance, the jamming report that produces can be the universal class jamming report that uses first subtype of summing function when producing report.Perhaps, the jamming report that produces can be the general jamming report that uses second subtype of max function when producing report.In certain embodiments, step 2436 comprises substep 2438.In substep 2438, wireless terminal as the function of sequential organization information determine jamming report will based on still maximum.Operation proceeds to step 2440 from step 2436, and wherein the wireless terminal transmission is from the report that produces of step 2436.

In certain embodiments, the step (step 2404) that receives base station identification information comprises from the first attachment point receiving broadcast signal, and described broadcast singal is in order to control a plurality of wireless terminals.In this way, the signaling overhead is minimized from each amount that originally will need that individually described base station identification information is signaled to the wireless terminal of being served by first attachment point individually.

Figure 25 (comprising the combination of Figure 25 A and Figure 25 B) is the flow chart 2500 according to the exemplary method of the operate wireless terminal of each embodiment.Operation starts from step 2502, wherein to wireless terminal energising and initialization.Operation proceeds to from beginning step 2502: step 2504, step 2506, step 2508, via connected node A 2532 to step 2533, via connected node B 2534 to step 2535, via connected node C 2536 to step 2544, and in certain embodiments, arrive step 2546 via connected node D 2538.

In step 2504, the attachment point from current connection receives the broadcasting control signal that comprises the request of interference report information to wireless terminal on the basis continuing to carry out.At receive request, operation proceeds to step 2510 from step 2504.In step 2510, wireless terminal to interference report information receive the type (specific or general) that the jamming report of being asked is determined in request, and, determine local unique cell identifier corresponding to attachment point at the report of particular type.Step 2510 comprises substep 2512.In substep 2512, if the value request that receives is zero, then as Report Type=and general output 2514 is indicated, and the definite Report Type of asking of wireless terminal is general report.In substep 2512, then indicated as Report Type=specific output 2516 if institute's reception value is a non-zero, wireless terminal determines that the Report Type of asking is a particular report.In addition, if institute's reception value is a non-zero, then wireless terminal is set at cell identifier and equals the value request that receives, and for example, is the positive value request of one in one group of possible positive integer, and each different possible positive integer is corresponding to different pilot channel slope value.Output cell identifier value is by output 2518 expressions.

In step 2506, wireless terminal is continuing to carry out to receive beacon and/or pilot signal from current attachment point on the basis.Operation proceeds to step 2520 from step 2506.In step 2520, wireless terminal measure from current attachment point the intensity of the beacon that receives and/or pilot signal, thereby export current attachment point received signal strength information 2526.

In step 2508, wireless terminal is continuing to carry out to receive beacon and/or pilot signal from extra attachment point on the basis.Operation proceeds to step 2522 from step 2508, and proceeds to step 2524 sometimes.In step 2522, wireless terminal measure from extra attachment point the intensity of the beacon that receives and/or pilot signal, thereby export the first extra attachment point received signal strength information 2528.In step 2524, wireless terminal measure from the extra attachment point of difference the intensity of the beacon that receives and/or pilot signal, thereby export the extra attachment point received signal of N strength information 2530.

Turn back to step 2533, in step 2533, wireless terminal receives the wireless terminal opening identifying information with Dedicated Control Channel structurally associated connection, and described Dedicated Control Channel structure comprises and is used for the report time that wireless terminal is transferred to jamming report current attachment point in the loop structure.Step 2533 output identification will be used for the information 2540 of the section of jamming report.

Turn back to step 2535, in step 2535, sequential and the output current time information 2542 of wireless terminal in continuing to carry out to follow the tracks of on the basis circulation sequential organization that current connection just using, for example, the index information in the circulation OFDM sequential organization.

Turn back to step 2544, in step 2544, wireless terminal carries out determining whether to transmit jamming report on the basis continuing.Step 2544 use current time information 2542 and identification be used for jamming report section information 2540 and about the sequential organization information of current connection as input.If in step 2544, determine to transmit jamming report, then operate proceeding to step 2552, step 2558 and step 2566 from step 2544.

In step 2552, wireless terminal determines that the time is corresponding to general report of the first kind or the general report of second type.If the time is corresponding to the general report of the first kind, and is then indicated as output 2554, general report subtype=summing function type; Yet, if the time corresponding to the general report of second type, as output is 2556 indicated, general report subtype=max function type.

In step 2558, wireless terminal determines about being used for the attachment point of particular type report, the time is corresponding to which sectors type.For instance, in an one exemplary embodiment, the circulation sequential organization is subdivided into beacon slot, has three kinds of different sectors type, and the sectors type that is associated with the beacon slot with index between described three kinds of different sectors type alternately (referring to Figure 18).The output of step 2558 is sectors type=sectors type 02560, sectors type=sectors type 12562, and one in sectors type=sectors type 22564.

In certain embodiments, wireless terminal uses uplink loading factors information and comprises step 2546 and step 2548 when calculating jamming report.In step 2546, wireless terminal is continuing to carry out to monitor on the basis and is receiving uplink loading factors information corresponding to attachment point.Operation proceeds to step 2548 from step 2546, and wherein wireless terminal is used the uplink loading factors value of acquiescence at the attachment point of being paid close attention to (not being its receiving uplink on-load factor information as yet).From step 2546 and/or 2548 output uplink loading factors information 2550 (receive and/or default information).

Turn back to step 2556, in step 2556, wireless terminal produces jamming report according to request Report Type (specific or general); Under the situation of general report, described report is also according to report subtype (summing function type or max function type); And under the situation of particular report, described report is discerned attachment point (for example, being discerned by cell identifier/sector type identifier combination) about specific, and about current attachment point.The input that can be used for step 2566 comprises at least some in the following information: Report Type information 2568, general report sub-type information 2570, cell identification information 2518, sector type information 2574, make the extra attachment point of the beacon information relevant, current attachment point institute receiving intensity information 2526, first institute receiving intensity information 2528, the extra attachment point of N institute receiving intensity information 2530 with the pilot transmission power level, and uplink loading factors information 2550.The 2568 identification reports of Report Type information will be general report or particular report, and be one in the output 2514 and 2516.General report sub-type information 2570 identifications, report (if it is general report) will be used summing function or use max function when producing report when producing report.General report sub-type information 2570 is one in the output 2554 and 2556.Sub-district id information 2518 is the institute's reception values from receive report control request signal.Sector type information 2574 is one in the output 2560,2562 and 2564.The information that beacon/pilot transmission power level is correlated with comprises through-put power power layer level information and other gain information relevant with the through-put power of pilot signal of the beacon signal that is used in attachment point under consideration, and the information that the transmission power level between the different attachment point is associated.

At general report, wireless terminal use institute's receiving intensity information 2526,2528 ..., 2530 produce jamming report, the subtype of report (summing function type or max function type) is determined by information 2570.Report at particular type, wireless terminal produce make current attachment point institute receiving intensity information 2526 with (the first extra attachment point institute receiving intensity information 2528 ..., the extra attachment point of N institute receiving intensity information 2530) in reports of being correlated with, described one is definite by the identification corresponding to the extra attachment point of the combination of cell identifier 2518 and sectors type 2574.

Operation proceeds to step 2584 from step 2566, and wherein wireless terminal produces jamming report with institute and is transferred to current attachment point.

Figure 26 uses and reports form 2600 graphic of calculating according to the exemplary jamming report signal of each embodiment for explanation.First row 2602 are listed the descriptive information about the jamming report of the ratio that transmits first and second value.Secondary series 2504 is listed first value; The 3rd row 2606 are listed second value; The 4th row 2608 are listed the 3rd value; The 5th row 2510 are listed the 4th value; The 6th row 2612 are listed first signal type; The 7th row 2614 are listed the secondary signal type; The 8th row 2616 are listed the 3rd signal type.

Each row (2618,2620,2622,2624,2626,2628,2630,2632,2634) is described a different report.Row 2618 is about using the certain interference report of the beacon signal power measurement that receives.Row 2620 is reported about the certain interference of using the institute's pilot signal power that receives measurement.Row 2622 is reported about the certain interference of using institute's pilot tone that receives and beacon signal power measurement.Row 2624 is about the general jamming report of first subtype of the use beacon signal power measurement that receives.Row 2626 is about the jamming report of second subtype of the use beacon signal power measurement that receives.Row 2628 is about the general jamming report of first subtype of using the institute's pilot signal power that receives measurement.Row 2630 is about the jamming report of second subtype of using the institute's pilot signal power that receives measurement.Row 2632 about use the general jamming report of first subtype of the pilot tone that receives and beacon signal power measurement.Row 2630 about use the jamming report of second subtype of the pilot tone that receives and beacon signal power measurement.

In form 2600, b ₀It is on-load factor corresponding to first attachment point; PB ₀Be the power that records from the beacon signal that receives of first attachment point; PP ₀Be the power that records from the pilot signal that receives of first attachment point; b ₁It is on-load factor corresponding to second attachment point; PB ₁Be the power that records from the beacon signal that receives of second attachment point; PP ₁Be the power that records from the pilot signal that receives of second attachment point; b ₂It is on-load factor corresponding to the 3rd attachment point; PB ₂Be the power that records from the beacon signal that receives of the 3rd attachment point; PP ₂Be the power that records from the pilot signal that receives of the 3rd attachment point.For instance, first attachment point can be corresponding to current service attachment point (transmitting jamming report to it), and second and third attachment point can be corresponding to other the local attachment point in the system.K is the conversion factor that the through-put power intensity of beacon signal is associated with the through-put power intensity of pilot signal.

In this example, can suppose with the same transmission power level and transmit beacon signals, and also can suppose with the same transmission power level from attachment point 1,2 and 3 transmission pilot signals from attachment point 1,2 and 3.

In certain embodiments, no matter attachment point and with same transmission power transmission beacon signal, and the transmission power level of pilot signal changes as the function of attachment point.In some described embodiment, different capacity layer level is used for different attachment point, and the relevant conversion factor of power layer level of different attachment point be can be used in the jamming report calculating.

Form 2600 is described the exemplary general purpose report of using from the information of three different attachment point; Employed formula can expand to and comprise the institute received power measurement of use from extra attachment point.

Figure 27 is the graphic of the exemplary wireless terminal 2700 implemented according to each embodiment.Exemplary wireless terminal 2700 comprises receiver module 2702, transmitter module 2704, processor 2706, the I/O device 2708 that is coupled via bus 2712, and memory 2710, each element can be on described bus swap data and information.Memory 2710 comprises routine 2718 and data/information 2720.Processor 2706 (for example, CPU) executive routine 2718 and use the data/information 2720 in the memory 2710 to control the operation of wireless terminal 2700 and implement method of the present invention.

Receiver module 2702 (for example, the OFDM receiver) is coupled to reception antenna 2714, wireless terminal via described reception antenna from base station attachment point receiving downlink signal.Described down link signal comprises various broadcast singals, and broadcast singal comprises beacon signal, pilot signal, and base station identification information local unique cell identifier of the attachment point that will be used for particular type report (for example, corresponding to); And request jamming report type information (for example, distinguishing the information of particular type jamming report and universal class jamming report).In certain embodiments, local unique base station identifiers is about a subregion base station, and second attachment point is positioned at place, described subregion base station.Receiver module 2702 receives a plurality of signals from a plurality of attachment point, described a plurality of signal comprises secondary signal, and for example, described secondary signal is from the beacon of second attachment point or pilot signal, described second attachment point is to remove first attachment point (for example, current connection attachment point) attachment point in addition.

Transmitter module 2704 (for example, the OFDM transmitter) is coupled to transmit antenna 2716, and wireless terminal is via described transmit antenna transmitting uplink signals, and it comprises the jamming report that produces (the beacon ratio report that for example, transmits) on Dedicated Control Channel.In each embodiment, receiver module 2702 and transmitter module 2704 are used the same antenna (for example, in conjunction with duplex module).

Routine 2718 comprises communication routines 2722 and wireless terminal control routine 2724.Wireless terminal control routine 2724 (for example comprises monitor module 2726, first measurement module 2728, the beacon signal measurement module), second measurement module 2732 (for example, pilot signal measurement module), jamming report generation module 2734, signal identification module 2736, transmission time determination module 2738, sectors type determination module 2740, and control module 2742.First measurement module 2728 comprises signal power measurement module 2331.Second measurement module 2732 comprises signal power measurement module 2333.

Each communication protocol that communication module 2722 is implemented by wireless terminal 2700 uses.Monitor module 2726 detects the broadcast base station identifying information, for example, local unique base station identifiers, for example corresponding to the cell slope value of base station attachment point, the received signal ionization meter of beacon and/or pilot tone will and be used for through the certain interference report of request to transmit in up link from the acquisition of described base station attachment point.First measurement module 2728 is measured the received signal of the first kind, for example, and beacon signal.Secondary signal measurement module 2732 is measured the signal of second type, for example, and pilot signal.Jamming report generation module 2734 is based on producing report to the measurement of first received signal and to the measurement of second received signal, described first received signal is from first attachment point (described wireless terminal have with it be connected), and described second received signal is from corresponding to second attachment point by described monitor module 2726 detected base station identification information.

Signal identification module 2736 is discerned secondary signals as the function of detected broadcast base station identifying information from a plurality of signals.Use information when therefore signal is identified in the identification secondary signal from monitor module 2726.In certain embodiments, detected broadcast base station identifying information is detected in the broadcast singal from first attachment point, and described broadcast singal is in order to control a plurality of wireless terminals.

Transmission time determination module 2738 receives the transmission time that the control signal that comprises base station identification information determines to transmit the jamming report that produces as the predefined function of the time of transmission time control input according to use.In certain embodiments, predefined function determine the transmission time be corresponding to the time place of the fixedly predetermined migration of the time that receives control signal.

Sectors type determination module 2740 is from definite sector identifier corresponding to the reception base station identifiers of the time that receives control signal, and the sector of second attachment point is served as in described sector identifier identification.In certain embodiments, determine sector identifier as the function of the time slot in storage sequential organization information and the pairing loop structure of described received signal time.

Control module 2742 control jamming report generation modules 2734 are to be received control signal and produced dissimilar reports in response to different, described dissimilar report comprises at least one first kind report and the report of second type, the report of the described first kind transmits the ratio of first and second value, in described first and second value one is corresponding to the measurement from the signal of current connection attachment point, and another person in described first and second value of attachment point stipulates to wireless terminal by current connection attachment point, for example, current connection attachment point is chosen in and will uses in other possible attachment point signal which when calculating jamming report.For instance, the report of the first kind can be the report of specified beacon ratio, and the report of second type can be general beacon ratio report.The control signal that receives (for example, the value 0 in jamming report request broadcast singal) but signaling: request transmits general report; Another control signal that receives (for example, the positive integer value in jamming report request broadcast singal) can be represented: just asking the beacon ratio report of particular type, wherein said positive integer value is used to discern second attachment point.

In certain embodiments, when the signal measurement information of handling corresponding to one or more signals, use maximum or summing function to produce the report (for example, general beacon ratio report) of second type.

In each embodiment, jamming report is the jamming report for the ratio of first value and second value, described first value be first signal (for example, the do for oneself beacon or the pilot signal of first attachment point of current connection) the function that records power, and described second value be secondary signal (for example, beacon or pilot signal from another base station attachment point (for example, using the sub-district and/or the sector attachment point of the vicinity of same carrier wave and/or tone block)) the function that records power.

Data/information 2720 comprises the sequential organization information 2744 of storing, the broadcast base station identifying information 2746 that detects, the first received signal metrical information 2748, the second received signal metrical information 2750, the interference report information that produces 2752, current attachment point connection ID information 2754, attachment point 2756 corresponding to institute's base stations detected identifying information, control signal receiving time information 2758, the local unique identification of base stations 2760 that receives, the second attachment point sectors type 2762 of discerning, definite gap information 2764, first kind jamming report (for example, the certain interference report) information 2766, and second types of interference report (for example, general report) information 2768.

Though described under the situation of ofdm system, the method and apparatus of each embodiment can be applicable to comprise the communication system of the broad range of many non-OFDM and/or non-cellular system.

In each embodiment, use one or more modules to implement node described herein to carry out step corresponding to one or more methods, for example, signal processing, beacon generation, beacon detect, beacon is measured, connection is compared, connection is implemented.In certain embodiments, use module to implement various features.Can use the combination of software, hardware or software and hardware to implement described module.For example can use the machine-executable instruction of software to implement many above-described methods or method step, described instruction (for example for example is contained in storage arrangement, RAM, floppy disk etc.) machine-readable medium in for example in one or more nodes, implement the above-described method of all or part with control machine (for example, having or do not have the all-purpose computer of additional hardware).Therefore, each embodiment (especially) is at machine-readable medium, and it comprises and is used to make machine (for example, processor and the hardware that is associated) to carry out the one or more machine-executable instruction of the step of the above method.

In view of above description, the those skilled in the art will easily understand the many extra change to above-described method and apparatus.Should think that described change is in scope.The method and apparatus of each embodiment can (and in each embodiment really) with using in order to the communication technology of CDMA, Orthodoxy Frequency Division Multiplex (OFDM) and/or various other types that the wireless communication link between access node and the mobile node is provided.In certain embodiments, access node is embodied as the base station, and described base station uses OFDM and/or CDMA to set up communication link with mobile node.In each embodiment, mobile node is embodied as notebook, personal digital assistant (PDA) or comprises receiver/transmitter circuit and other mancarried device of logic and/or routine, to be used to implement the method for each embodiment.

Claims (51)

1. the method for an operate wireless terminal, it comprises:

Supervision is to detect the received broadcast signal that transmits at least one uplink loading factors, and each broadcast uplink on-load factor is corresponding to an attachment point;

Receive first signal from first attachment point;

Described first signal that receives is carried out first measurement;

Based on reporting to the described measurement of described first signal and corresponding to first receiving uplink on-load factor generation uplink channel interference of described first attachment point; And

Transmit the described uplink channel interference report that produces.

2. method according to claim 1, it further comprises:

Receive secondary signal from second attachment point;

The described secondary signal that receives is carried out second measurement; And

Wherein producing uplink channel interference report further comprises and uses described second result who measures to produce described uplink channel interference report.

3. method according to claim 2, wherein said first and second measurement is a signal power measurement.

4. method according to claim 3,

Wherein said first signal is beacon or pilot signal; And

Wherein said secondary signal is beacon or pilot signal.

5. method according to claim 3, wherein said uplink channel interference report transmits the ratio of first and second value, described first value is the result's of described first on-load factor and described first signal measurement the function of product, and wherein said second value is described second second result's who measures a function.

6. method according to claim 5, wherein said first and second signal is an ofdm signal.

7. method according to claim 5, wherein said second value still are corresponding to the function of the result's of second on-load factor of described second attachment point and the measurement of described secondary signal product.

8. method according to claim 7, it further comprises:

Before producing described uplink channel interference report, receive described second on-load factor.

9. method according to claim 7, it further comprises:

Described second on-load factor is set at default value.

10. method according to claim 5,

Receive the 3rd signal from the 3rd attachment point;

Described the 3rd signal that receives is carried out the 3rd measurement; And wherein producing uplink channel interference report further comprises and uses the described the 3rd result who measures to produce described second value.

11. method according to claim 10 is wherein used the described the 3rd result who measures to produce described second value and is comprised:

To the 3rd and the 4th value summation, described the 3rd value is the result's of described secondary signal measurement a function, and described the 4th value is the result's of described the 3rd signal measurement a function.

12. method according to claim 11,

Wherein produce described first value according to following equation:

b ₀PB ₀And

Wherein produce described second value according to following equation:

b ₁PB ₁+b ₂PB ₂；

B wherein ₀It is described on-load factor corresponding to described first attachment point;

PB wherein ₀Be the power that records from the beacon signal that receives of described first attachment point;

B wherein ₁It is on-load factor corresponding to described second attachment point;

PB wherein ₁Be the power that records from the beacon signal that receives of described second attachment point;

B wherein ₂It is on-load factor corresponding to described the 3rd attachment point; And

PB wherein ₂Be the power that records from the beacon signal that receives of described the 3rd attachment point.

13. method according to claim 10 is wherein used the described the 3rd result who measures to produce described second value and is comprised:

Described second value is set at the maximum of the 3rd and the 4th value, and described the 3rd value is the result's that measures of described secondary signal a function, and described the 4th value is the result's of described the 3rd signal measurement a function.

14. method according to claim 13,

Wherein produce described first value according to following equation:

b ₀PB ₀And

Wherein produce described second value according to following equation:

MAX(b ₁PB ₁，b ₂PB ₂)；

B wherein ₀It is described on-load factor corresponding to described first attachment point;

PB wherein ₀Be the power that records from the beacon signal that receives of described first attachment point;

B wherein ₁It is on-load factor corresponding to described second attachment point;

PB wherein ₁Be the power that records from the beacon signal that receives of described second attachment point;

B wherein ₂It is on-load factor corresponding to described the 3rd attachment point; And

PB wherein ₂Be the power that records from the beacon signal that receives of described the 3rd attachment point.

15. a wireless terminal, it comprises:

Monitor module, it is used to detect the received broadcast signal that transmits at least one uplink loading factors, and each broadcast uplink on-load factor is corresponding to an attachment point;

First measurement module, it is used to measure the received signal of the first kind;

Second measurement module, it is used to measure the received signal of second type;

The report generation module, it is used for based on reporting to the measurement of first received signal and corresponding to first receiving uplink on-load factor generation uplink channel interference of first attachment point; And

Transmitter, it is used to transmit the uplink channel interference report that is produced.

16. wireless terminal according to claim 15,

Wherein said uplink channel interference report generation module uses the measurement from the secondary signal of second attachment point is produced the uplink channel interference report.

17. wireless terminal according to claim 16, each all comprises the signal power measurement module wherein said first and second measurement module.

18. wireless terminal according to claim 17,

Wherein said first signal is beacon or pilot signal; And

Wherein said secondary signal is beacon or pilot signal.

19. wireless terminal according to claim 17,

Wherein said uplink channel interference report transmits the ratio of first and second value,

Described report generation module comprises:

I) the first value generation module, it is used to produce described first value as the function of the result's of described first on-load factor and described first signal measurement product; And

Ii) second is worth generation module, and it is used to produce described second value as described second second result's who measures function.

20. wireless terminal according to claim 19, the wherein said second value generation module comprises multiplication module, and described multiplication module is used to produce the result's who measures corresponding to second on-load factor and the described secondary signal of described second attachment point product.

21. wireless terminal according to claim 20, it further comprises:

The on-load factor determination module, it is used for not from second on-load factor of the successful reception of described second attachment point time described second on-load factor being set at default value.

22. a wireless terminal, it comprises:

Be used to detect the device of the received broadcast signal that transmits at least one uplink loading factors, each broadcast uplink on-load factor is corresponding to an attachment point;

Be used to measure the device of the received signal of the first kind;

Be used to measure the device of the received signal of second type;

Be used for reaching the device that produces the uplink channel interference report corresponding to first receiving uplink on-load factor of first attachment point based on measurement to first received signal; And

Be used to transmit the device of the uplink channel interference that produces report.

23. wireless terminal according to claim 22,

The wherein said device that is used to produce the uplink channel interference report uses the measurement from the secondary signal of second attachment point is produced the uplink channel interference report.

24. wireless terminal according to claim 23, each all comprises the signal power measurement module device of the device of the wherein said received signal that is used to measure the first kind and the described received signal that is used to measure second type.

25. wireless terminal according to claim 24,

Wherein said first signal is beacon or pilot signal; And

Wherein said secondary signal is beacon or pilot signal.

26. wireless terminal according to claim 24,

Wherein said uplink channel interference report transmits the ratio of first and second value,

The described device that is used to produce the uplink channel interference report comprises:

I) be used to produce device as described first value of the function of the result's of described first on-load factor and described first signal measurement product; And

Ii) be used to produce device as described second value of described second second result's who measures function.

27. wireless terminal according to claim 26, wherein said first and second signal is the CDMA signal.

28. wireless terminal according to claim 26, wherein said first and second signal is an ofdm signal.

29. wireless terminal according to claim 26, the wherein said device that is used to produce described second value comprise the device of the product that is used to produce the result who measures corresponding to second on-load factor and the described secondary signal of described second attachment point.

30. wireless terminal according to claim 29, it further comprises:

Be used for not from second on-load factor of the successful reception of described second attachment point time, described second on-load factor being set at the device of default value.

31. wireless terminal according to claim 26,

The wherein said device that is used to produce the uplink channel interference report uses the 3rd result who measures from the 3rd attachment point to produce described second value and produces the report of at least one uplink channel interference.

32. it is according to claim 31 wireless, the wherein said device that is used to produce the uplink channel interference report comprises: be used for device that the 3rd and the 4th value is sued for peace, described the 3rd value is the result's of described secondary signal measurement a function, and described the 4th value is the result's of described the 3rd signal measurement a function.

33. wireless terminal according to claim 32,

Wherein said first value produces according to following equation:

b ₀PB ₀And

Wherein said second value produces according to following equation:

b ₁PB ₁+b ₂PB ₂；

B wherein ₀It is described on-load factor corresponding to described first attachment point;

PB wherein ₀Be the power that records from the beacon signal that receives of described first attachment point;

B wherein ₁It is on-load factor corresponding to described second attachment point;

PB wherein ₁Be the power that records from the beacon signal that receives of described second attachment point;

B wherein ₂It is on-load factor corresponding to described the 3rd attachment point; And

PB wherein ₂Be the power that records from the beacon signal that receives of described the 3rd attachment point.

34. wireless terminal according to claim 31, the wherein said device that is used to produce the uplink channel interference report comprises:

Be used for described second value is set at the peaked device of the 3rd and the 4th value, described the 3rd value is the result's of described secondary signal measurement a function, and described the 4th value is the result's of described the 3rd signal measurement a function.

35. wireless terminal according to claim 34,

Wherein said first value produces according to following equation:

b ₀PB ₀And

Wherein said second value produces according to following equation:

MAX(b ₁PB ₁，b ₂PB ₂)；

B wherein ₀It is described on-load factor corresponding to described first attachment point;

PB wherein ₀Be the power that records from the beacon signal that receives of described first attachment point;

B wherein ₁It is on-load factor corresponding to described second attachment point;

PB wherein ₁Be the power that records from the beacon signal that receives of described second attachment point;

B wherein ₂It is on-load factor corresponding to described the 3rd attachment point; And

PB wherein ₂Be the power that records from the beacon signal that receives of described the 3rd attachment point.

36. a computer-readable media, it comprises the machine-executable instruction of the method that is used for the implementation and operation wireless terminal, and described method comprises:

Supervision is to detect the received broadcast signal that transmits at least one uplink loading factors, and each broadcast uplink on-load factor is corresponding to an attachment point;

Receive first signal from first attachment point;

Described first signal that receives is carried out first measurement;

Based on reporting to the described measurement of described first signal and corresponding to first receiving uplink on-load factor generation uplink channel interference of described first attachment point; And

Transmit the described uplink channel interference report that produces.

37. computer-readable media according to claim 36, it further comprises machine-executable instruction, and described machine-executable instruction is used for:

Receive secondary signal from second attachment point;

The described secondary signal that receives is carried out second measurement; And

As the part of the step of described generation uplink channel interference report, use described second result who measures to produce described uplink channel interference report.

38. according to the described computer-readable media of claim 37, wherein said first and second measurement is a signal power measurement.

39. according to the described computer-readable media of claim 38,

Wherein said first signal is beacon or pilot signal; And

Wherein said secondary signal is beacon or pilot signal.

40. according to the described computer-readable media of claim 38, wherein said uplink channel interference report transmits the ratio of first and second value, described first value is the result's of described first on-load factor and described first signal measurement the function of product, and wherein said second value is described second second result's who measures a function.

41. according to the described computer-readable media of claim 40, wherein said first and second signal is an ofdm signal.

42. according to the described computer-readable media of claim 40, wherein said second value still is corresponding to the function of the result's of second on-load factor of described second attachment point and the measurement of described secondary signal product.

43. according to the described computer-readable media of claim 42, it further comprises machine-executable instruction, described machine-executable instruction is used for:

Before producing described uplink channel interference report, receive described second on-load factor.

44. according to the described computer-readable media of claim 42, it further comprises machine-executable instruction, described machine-executable instruction is used for:

Described second on-load factor is set at default value.

45. one kind can be in communication system apparatus operating, described equipment comprises:

Processor, it is configured to:

Supervision is to detect the received broadcast signal that transmits at least one uplink loading factors, and each broadcast uplink on-load factor is corresponding to an attachment point;

Receive first signal from first attachment point;

Described first signal that receives is carried out first measurement;

Based on reporting to the described measurement of described first signal and corresponding to first receiving uplink on-load factor generation uplink channel interference of described first attachment point; And

Transmit the described uplink channel interference report that produces.

46. according to the described equipment of claim 45, wherein said processor is configured to:

Receive secondary signal from second attachment point;

The described secondary signal that receives is carried out second measurement; And

Use described second result who measures to produce described uplink channel interference report.

47. according to the described equipment of claim 46, wherein said first and second measurement is a signal power measurement.

48. according to the described equipment of claim 47,

Wherein said first signal is beacon or pilot signal; And

Wherein said secondary signal is beacon or pilot signal.

49. according to the described equipment of claim 47, wherein said uplink channel interference report transmits the ratio of first and second value, described first value is the result's of described first on-load factor and described first signal measurement the function of product, and wherein said second value is described second second result's who measures a function.

50. according to the described equipment of claim 49, wherein said second value still is corresponding to the function of the result's of second on-load factor of described second attachment point and the measurement of described secondary signal product.

51. according to the described equipment of claim 50, wherein said processor is configured to:

Before producing described uplink channel interference report, receive described second on-load factor.

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