CN101578775B - Method and apparatus for utilizing other sector interference (OSI) indication - Google Patents

Abstract

Techniques for mitigating interference in a wireless communication system are described. In one design, a sector may determine multiple fast other sector interference (OSI) indications for multiple subzones, with each subzone corresponding to a different portion of the system bandwidth. At least one report may be generated for the multiple OSI indications, with each report including at least one OSI indication for at least one subzone. Each report may be encoded to obtain code bits, which may then be mapped to a sequence of modulation symbols. A sequence of modulation symbols of zero values may be generated for each report with all OSI indications in the report set to zero to indicate lack of high interference in the corresponding subzones. This allows a report to be transmitted with zero power in a likely scenario. A regular OSI indication may also be determined for the system bandwidth and transmitted.

Description

Use the method and apparatus of other sector interference (OSI) indication

The application requires on January 4th, 2007 that submit, name to be called the U.S. Provisional Patent Application No.60/883 of " A METHOD AND APPARATUS FOR FAST OTHER SECTOR INTERFERENCE (OSI) ADJUSTMENT ", on January 5th, 387 and 2007 is that submit, name is called the U.S. Provisional Patent Application No.60/883 of " WIRELESS COMMUNICATION SYSTEM ", 758 priority, the both transfers the applicant's assignee, and incorporates this paper into way of reference.

Technical field

Put it briefly, the present invention relates to communication, specifically, the present invention relates in wireless communication system, reduce the technology of disturbing.

Background technology

The widespread deployment wireless communication system, so that various types of communication services to be provided, for example voice, video, grouped data, message transmission, broadcasting etc.These wireless systems can be to support the multi-address system of a plurality of telex networks by sharing free system resources.The example of this multi-address system comprises code division multiple access (CDMA) system, time division multiple access (TDMA) system, frequency division multiple access (FDMA) system, quadrature FDMA (OFDMA) system and Single Carrier Frequency Division Multiple Access (SC-FDMA) system etc.

Wireless multiple-access communication system can communicate at forward link and reverse link with a plurality of terminals simultaneously.Forward link (or down link) refers to the communication link from the base station to the terminal, and reverse link (or up link) refers to the communication link from terminal to base station.A plurality of terminals can send data and/or receive data on the forward link at reverse link simultaneously.This can by on each link multiplexing mutually in time domain, frequency domain and/or sign indicating number territory the transmission of quadrature realize.

On reverse link, from the transmission of the terminal that communicates with different base station mutually orthogonal not usually.Therefore, each terminal can cause interference to other terminal of communicating by letter with neighbor base station, also receives the interference from these other terminals.The performance of each base station is because from descending with the interference of other terminal of other base station communication.

Therefore there is the technology requirement of disturbing in the wireless communication system reducing in this area.

Summary of the invention

This paper has described the technology that reduces the interference in the wireless communication system.In one aspect, the inter-sector interference from the terminal of communicating by letter with nearby sectors that it observes is estimated in the sector.This sector generates and sends other sector interference (OSI) indication of the interference volume of expressing this sector observation.In a kind of design, the OSI indication comprises conventional OSI indication and OSI indication fast.Routine OSI indication is according to long-term average interference generation, and average interference obtains with the mean value that experiences long period interference at interval by calculating on big frequency range for a long time.Fast the OSI indication is disturbed according to short-term averaging and is generated, and short-term averaging disturbs by calculating on less frequency range and the mean value of experience short period interference at interval obtains.Terminal indicates to adjust its transmitting power according to the conventional OSI indication and the quick OSI that receive from nearby sectors.

In a kind of design, a plurality of quick OSI indication of a plurality of subregions is determined in the sector, and each subregion is corresponding to the different piece of system bandwidth.Be a at least report of OSI indication generation fast, every part of report comprises at least one quick OSI indication of at least one subregion.Every part of report is encoded to obtain coded-bit, then it is mapped to modulation symbol sequence.For indicating, all quick OSI all are set to zero to indicate the modulation symbol sequence that in corresponding subregion, is not having strongly disturbing every part of report generation null value.Allow like this in possible scheme, to send report with zero energy.And determine and send conventional OSI to indicate.

In a kind of design, terminal receives at least one quick OSI indication of at least one sub regions, and determines its transmitting power according to described at least one quick OSI indication.For at least one subregion is preserved at least one increment, and according to described at least one increment of at least one quick OSI indication adjustment.Can determine with reference to (for example pilot tone) channel transmitting power based on closed power control.Then, determine the transmitting power of each subregion based on the transmitting power of the increment of described subregion and described reference channel.

To describe various aspects of the present invention and feature in detail below.

Description of drawings

Fig. 1 shows wireless communication system.

Fig. 2 shows superframe structure.

Fig. 3 shows power control mechanism.

Fig. 4 shows the process that sends the OSI indication.

Fig. 5 shows for the device that sends the OSI indication.

Fig. 6 shows the process that receives the OSI indication.

Fig. 7 shows for the device that receives the OSI indication.

Fig. 8 shows the block diagram of a terminal and two sector/base stations.

Embodiment

Fig. 1 shows wireless communication system 100, also can be called as Access Network (AN).Term " system " and " network " are used interchangeably usually.System 100 comprises a plurality of base stations 110,112 and 114 and a plurality of terminal 120.The base station is the radio station that communicates with terminal.The base station also can be called access point, Node B, enode b etc.Each base station covers for specific geographical area 102 provides communication.Term " residential quarter " can refer to base station and/or its overlay area according to the context of its use.In order to improve power system capacity, base station coverage area is divided into a plurality of littler zones, for example, three littler regional 104a, 104b and 104c.Each littler zone provides service by base station sub-system separately.Term " sector " can refer to the smallest coverage area of base station and/or the base station sub-system of serving this overlay area.

Terminal 120 can be dispersed in the whole system, and each terminal can be static or mobile.Terminal also can be called access terminal (AT), mobile radio station, subscriber equipment, subscriber unit, radio station etc.Terminal can be cell phone, PDA(Personal Digital Assistant), Wireless Telecom Equipment, radio modem, handheld device, laptop computer, cordless telephone etc.At any given time, terminal can communicate with zero, one or more base station on forward direction and/or reverse link.

For centralized architecture, system controller 130 is coupled to base station 110, and coordinates and control for these base stations provide.System controller 130 can be the set of single network entity or a plurality of network entities.For distributed architecture, the base station is intercommunication mutually as required.

Technology described herein can be used for having in the system of sectorized cells, and can be used for having in the system of non-sectorized cells.For the purpose of clear, the system with sectorized cells has been described below.In the following description, term " sector " and " base station " are used interchangeably, and term " terminal " and " user " also are used interchangeably.Serving sector is the sector that terminal is communicated by letter with it.Nearby sectors is the sector that terminal is not communicated by letter with it.

Technology described herein can be used for various wireless communication systems, such as CDMA, TDMA, FDMA, OFDMA and SC-FDMA system.Cdma system can be realized the wireless technology such as cdma2000, universal terrestrial radio access (UTRA) etc.The OFDMA system can realize such as Ultra-Mobile Broadband (UMB), evolution UTRA (E-UTRA), IEEE 802.11, IEEE 802.16, IEEE802.20, Deng wireless technology.In the document of " third generation partner program " tissue (3GPP) by name, UTRA and E-UTRA have been described.In the document of " third generation partner program 2 " tissue (3GPP2) by name, cdma2000 and UMB have been described.These various wireless technologys and standard are being known in the art.For the purpose of clear, hereinafter will be at some aspect of UMB description technique, and the UMB term is used in many places in the following description.Described UMB in the standard of 3GPP2C.S0084-001 " Physical Layer for Ultra Mobile Broadband (UMB) Air Interface Specification " by name and 3GPP2C.S0084-002 " Medium Access Control Layer For Ultra Mobile Broadband (UMB) Air Interface Specification " by name, these two standards are published in August, 2007 and can openly obtain.

System 100 can use OFDM (OFDM) and/or single carrier frequency division multiplexing (SC-FDM).OFDM and SC-FDM are divided into a plurality of (K) orthogonal sub-carriers with system bandwidth, and wherein, orthogonal sub-carriers also often is called tone, frequency etc.Each subcarrier is modulated with data.Usually, in frequency domain, use OFDM to send modulation symbol, in time domain, use SC-FDM to send modulation symbol.Fixing at interval between the adjacent sub-carrier, the quantity of subcarrier depends on system bandwidth.For instance, 1.25,2.5,5,10 or the system bandwidth of 20MHz, have 128,256,512,1024 or 2048 subcarriers respectively.

Fig. 2 shows the design of the superframe structure 200 that can be used for system 100.The transmission time line of each link is divided into a plurality of units of super-frames.Each superframe strides across a certain period of time, and this time period can be fixed, and also can be configurable.On the forward link, each superframe comprises preamble, and the back is M physical layer (PHY) frame, and wherein, M can be any integer value.On reverse link, each superframe comprises M PHY frame, wherein a PHY frame is expanded, and the increment of expansion is the length of superframe preamble on the forward link.In the design shown in Fig. 2, each superframe comprises 25 PHY frames, and index is 0 to 24.Each PHY frame can carry business datum, signaling, pilot tone etc.

In a kind of design, superframe preamble comprises 8 OFDM symbols, and index is 0 to 7.OFDM symbol 0 comprises the main Broadcast Control Channel of forward direction (F-PBCCH) of having carried deployment-specific parameters information.OFDM symbol 1 to 4 comprises the forward direction sub-broadcast control channel (F-SBCCH) of the information of having carried sector-specific parameters and the Forward Quick Paging Channel (F-QPCH) that has carried paging information.OFDM symbol 5,6 and 7 comprises the pilot tone 1,2 and 3 that is used for the Time Division Multiplexing of initial acquisition by terminal respectively.TDM pilot tone 1 is as forward direction bid (F-ACQCH).In TDM pilot tone 2 and 3, send other sector interference channel of forward direction (F-OSICH).Also can otherwise define superframe preamble.

This system's support mixes re-transmission (HARQ) automatically.Use HARQ, can send one or more transmission for grouping, correctly decoding or transmit by some other situations up to described grouping stops.Define a plurality of (Q) HARQ and interweave, the HARQ i that interweaves comprises PHY frame i, Q+1,2Q+i etc., wherein i ∈ 0 ..., Q-1}.Each is grouped in a HARQ and interweaves and go up to send, and can interweave at this HARQ and transmit for described grouping sends one or more HARQ.HARQ transmission is a transmission packets in the PHY frame.

Can define a plurality of (S) subregion, each subregion is corresponding to the different piece of system bandwidth.Subregion also can be called subband, frequency range etc.Usually, subregion is corresponding to physical frequencies resource (for example, subcarrier) or be mapped to the logical frequency resource (for example, jump port) of physical frequencies resource.In a kind of design, define K and jump port, and according to known mapping relations it is mapped to K all subcarrier.Jump port and can simplify the distribution of resource.Jump port with K and be aligned in the S sub regions, each subregion comprises that L is jumped port, and wherein L and S can be fixed value or configurable value.For instance, L can equal 64 or 128, and S depends on system bandwidth.

Fig. 2 shows specific frame structure design.Also can use other frame structure to send business datum, signaling, pilot tone etc.Also can otherwise divide system bandwidth.

Each sector can receive from the transmission of terminal in this sector and from the transmission of terminal in other sector.Whole interference that each sector observes comprise: (i) from disturbing in the sector of terminal in the same sector and (ii) from the inter-sector interference of terminal in other sector.Inter-sector interference is also referred to as other sector interference (OSI), and reduces described inter-sector interference according to mode as described below.

In one aspect, the OSI indication of the interference volume of this sector observation of expression is determined and sent in each sector.The OSI indication also can be called OSI value, OSI designator, disturb designator etc.In a kind of design, each sector can generate and be sent in the OSI indication shown in the table 1.

Table 1

For the purpose of clear, the generative process of the OSI indication of a sector 112 has been described hereinafter.The interference of the different time frequency resource that this sector observes is estimated in sector 112.Can be with disturbing thermal noise to be worth to quantize described interference than (IoT) or some.IoT is whole interference powers of observing of sector and the ratio of thermal noise power.The mean value that disturbs is calculated with a superframe length in sector 112 on the whole system bandwidth, to obtain long-term average interference.In a kind of design, sector 112 compares long-term average interference and one group of threshold value, and is in order to determine conventional OSI indication, as follows:

Equation (1)

Interference wherein _Long-term(n) be the long-term average interference of superframe n,

Th1 and Th2 are for the threshold value that generates conventional OSI indication,

Regular_OSI (n) is the conventional OSI indication of superframe n.

The Th1 threshold value is arranged to the object run point of sector 112 or system.The Th2 threshold value is arranged to higher value, is used for detecting interference too high in the sector 112.In this case, conventional OSI value is arranged to the low inter-sector interference of ' 0 ' indication, is arranged to ' 1 ' and indicates medium inter-sector interference, indicate too high inter-sector interference and be arranged to ' 2 '.Also can otherwise generate conventional OSI indication, and described conventional OSI indication can comprise the information of any amount bit.

The mean value that also disturb with a physical frame length computation on each subregion sector 112 disturbs to obtain short-term averaging.In a kind of design, the 112 pairs of short-term averagings in sector disturb and threshold value compares, and indicate to determine quick OSI, and are as follows:

Equation (2)

Wherein: Interference _Short-term(n, m s) are the short-term averaging interference of subregion s superframe n among the PHY frame m,

Th3 is for the threshold value that generates quick OSI indication,

(n, m s) are the quick OSI indication of subregion s superframe n among the physical frame m to Fast_OSI.

In the design shown in the equation (2), quick OSI indication is set to ' 1 ' if the short-term averaging interference is equal to or greater than the Th3 threshold value, otherwise just is set to ' 0 '.Also can otherwise generate quick OSI indication, and described conventional OSI indication can comprise the information of any amount bit.Select the such threshold value of Th3＞Th2＞Th1.In this case, when 112 when observing high interference, using quick OSI to indicate to control the afterbody of interference profile in the sector.Sector 112 observations different interference volume on different subregions and/or in the different PHY frame, and generate the quick OSI indication of the difference of different subregions in the different PHY frames.

Usually, can determine conventional OSI indication and OSI indication fast according to any interference metric and any function.As described above, can use the function of the interference of measuring in the different time frequency resource to generate the OSI indication.In another kind design, use the average interference measured in the different time frequency resource and the function of maximum interference to generate the OSI indication.This function is specially adapted to quick OSI indication.

Conventional OSI dial gauge is shown on all or the most of system bandwidth and in the time period of expansion (for example superframe), whole interference that sector 112 observes.Conventional OSI indication is used for power control by all terminals in the nearby sectors perhaps multiple terminals.The specific part (for example, subregion) of the system bandwidth that sector 112 observes and the interference in the specified time interval (for example, PHY frame) are represented in the OSI indication fast.The particular terminal that running in the nearby sectors has in strongly disturbing subregion and the PHY frame uses quick OSI indication to carry out power control.

The interference from the terminal in the specific nearby sectors is also estimated in sector 112, and generates the quick OSI indication of specific nearby sectors.Each causes that the terminal in the strongly disturbing nearby sectors can reduce its transmitting power to reduce the interference to sector 112, and described strong jamming is indicated by the quick OSI indication at this nearby sectors.

Usually, be different subregions, different PHY frame, different nearby sectors etc. or the quick OSI indication of any its combination generation.Can for the combination of subregion, subregion and sector etc. with different conventional OSI and/or fast the OSI indication combine.For the purpose of clear, hereinafter be at the description that generates the design of quick OSI indication for each subregion in each PHY frame.

Sector 112 can send conventional OSI indication at F-OSICH by different way.Be desirably on the big overlay area and send F-OSICH, from rather than by the terminal of sector 112 service this F-OSICH that can decode.Expect that also F-OSICH has the coverage identical with the TDM/ acquisition pilot, this overlay area deeply is penetrated in the nearby sectors.More preferably do not need the extra information (for example, the information beyond pilot frequency pseudo-random (PN) information) about sending the sector, just can decode to F-OSICH.These requirements make the transmitting power that is transmitted in requirement of F-OSICH and/or temporal frequency resource aspect become expensive, and restriction sends the speed of F-OSICH.

In a kind of design, as shown in Figure 2, in the TDM of superframe preamble pilot tone 2 and 3, send F-OSICH.Conventional OSI indication is modulated the phase place of TDM pilot tone 2 and 3.In a kind of design, conventional OSI indication can value 0,1 or 2, and modulates phase place 0,2 π/3 or 4 π/3 of TDM pilot tone respectively.Can send the TDM pilot tone with enough transmitting powers, in order to go deep into nearby sectors.By add F-OSICH in the TDM pilot tone, conventional OSI indication will have the coverage identical with the TDM pilot tone, and be received by the terminal that is distributed in whole nearby sectors.

Sector 112 also can send quick OSI indication in a different manner.In a kind of design, the quick OSI channel of forward direction (F-FOSICH) is gone up and is sent quick OSI indication in each PHY frame on the forward link.

In a kind of design, in one or more quick OSI reports, send quick OSI indication, every part of report is encoded respectively and modulated.Usually, every part of report can comprise any amount of bit that any amount of quick OSI indicates.In a kind of design, every part of report comprises four bits of four quick OSI indications, and described four quick OSI pointers are to four sub regions in the PHY frame.According to encoding scheme described four bits are encoded, to obtain 12 coded-bits.Described encoding scheme comprises the forward direction error detection code of Cyclic Redundancy Check for example and/or the forward error correction of convolution code for example.In a kind of design, be the CRC that the report of 4 bits generates 2 bits, with the convolution code of speed 1/2 6 bits that produced are encoded, to generate 12 coded-bits of report.The sign indicating number that is connected of described CRC and convolution code formation speed 1/3.According to QPSK 12 coded-bits are mapped to 6 modulation symbols.For report sends described 6 modulation symbols.

Usually, the quick OSI number of reports that send depends on different factors, for example system bandwidth, subregion number, physics frame number etc.For instance, if system bandwidth is 5MHz and the subregion that has defined four 1.25MHz, then be that four sub regions in the PHY frame generate four quick OSI indications.The single part of report that comprises four quick OSI indications sends with 6 modulation symbols.If system bandwidth is 20MHz and the subregion that has defined 16 1.25MHz, then be that 16 sub regions in the physical frame generate 16 quick OSI indications.Four parts of reports 24 modulation symbols transmissions altogether, every part of report comprises four quick OSI indications of four different subregions.

Expectation sends the report of quick OSI indication with alap transmitting power.Surpass the Th3 threshold value if short-term averaging disturbs, described Th3 threshold value is higher than the peak for the threshold value Th2 of conventional OSI indication, and then quick OSI indication is set to ' 1 '.Thereby it is lower that quick OSI indication is set to ' 1 ' possibility, and that quick OSI indication is set to ' 0 ' possibility is higher.In a kind of design, by report being mapped to the report that the null value modulation symbol sequence comes to send with zero energy the quick OSI indication that comprises whole null values.For instance, will comprise ' 0000 ' 4 bit report coding, and it is mapped to six modulation symbols, and { 0,0,0,0,0,0}, each modulation symbol 0 sends with zero energy.In fact, do not send described 4 bit report ' 0000 ', and do not consume any power and transmit these four complete zero quick OSI indication.This design reduces the amount of transmission power that is used for sending quick OSI indication.

In the another kind design, send quick OSI indication separately.For example, each quick OSI indication is mapped to one or more modulation symbols.In order to reduce transmitting power, quick OSI indication ' 0 ' can be mapped to acyclic homologically trioial symbol processed, and quick OSI indication ' 1 ' is mapped to the non-zero modulation symbol.The transmitting power that is used for the modulation symbol number of each quick OSI indication and/or modulation symbol depends on reliability and the coverage of the expectation of described quick OSI indication.

Usually, can be in groups and/or send quick OSI indication individually.Send quick OSI indication in groups and allow the report of one group of quick OSI indication is more effectively encoded, allow reliability and coverage for expectation like this, send described report with less time frequency resource and/or lower transmitting power.Yet, thereby all quick OSI indications that send in groups in may causing reporting all are that zero probability that does not send is lower.On the contrary, send quick OSI indication separately and cause value higher for the probability of the non-transmission of the quick OSI indication of ' 0 ' value, thereby reduce transmitting power.Yet, for higher transmitted power and/or more time frequency resource are used in the quick OSI indication that reality sends.Select to send the mode of quick OSI indication according to for example balance between the different factors such as transmitting power, the utilization of resources, coverage, reliability.

On reverse link, the maintenance interference with in interior, can allow each terminal to send with high as far as possible power stage in the level that can receive.Allow to send with higher power stage near the terminal of its serving sector, may cause very low interference to nearby sectors because this terminal is very big.On the contrary, allow to send with lower power stage away from the terminal of its serving sector and close coverage edge, because this terminal causes more interference to nearby sectors.Control transmitting power by this way and can when the terminal that allows to have good channel conditions reaches more high data rate, reduce the interference that each sector observes.

Given terminal 120x adjusts its transmitting power according to power control mechanism, in order to realize transmitting reliably to its serving sector, and at the acceptable interference level of nearby sectors.Usually, transmitting power can be provided by following unit of measurement: (i) unit is the power spectral density (PSD) of decibel/hertz (dB/Hz), the (ii) transmitting power of each modulation symbol, or more (iii) other unit of measurement.

In the following description, provide the transmitting power of each modulation symbol.In a kind of design, terminal 120x adjusts the transmitting power of reference channel, to reach the desired level of performance of reference channel.Then, terminal 120 is according to the transmitting power of the transmitting power specified data/Traffic Channel of reference channel.Reference channel can be Reverse Pilot Channel (R-PICH), acknowledgement channel, Dedicated Control Channel, access channel, request channel etc.In a kind of design of Miao Shuing, reference channel is R-PICH hereinafter, and data/Traffic Channel is reverse OFDMA data channel (R-ODCH).

In a kind of design, R-PICH is carried out closed power control.For closed power control, serving sector receives the R-PICH of self terminal 120x, determines the receiving symbol quality of R-PICH, if the receiving symbol quality is lower than threshold value then transmission power control (PC) bit ' 1 ', otherwise sends ' 0 '.Terminal 120x receives the PC bit from serving sector, and adjusts the transmitting power of R-PICH, and is as follows:

Equation (3)

P wherein _STEPBe that unit is the power control step-size of decibel (dB),

P _PICHIt is the R-PICH transmitting power of each modulation symbol.

The transmitting power of R-PICH is adjusted in closed power control, to reach the expectation received signal quality of R-PICH.Also can carry out closed power control to another reference channel, with the target capabilities grade (for example, target error rate) that reaches this reference channel.

In a kind of design, for carrying out based on the power of increment, R-ODCH controls.For based on the control of the power of increment, according to the transmitting power of R-PICH with the transmitting power of R-ODCH is set with respect to the skew increment of R-PICH.In a kind of design, terminal 120x preserves single increment, and indicates to adjust described increment according to conventional OSI indication and the quick OSI from the nearby sectors that receive.In another kind design, terminal 120x keeps a plurality of increments, and comprising (i) increment at a slow speed, it is adjusted according to conventional OSI indication, (ii) one or more quick increments, and it is adjusted according to OSI indication fast.According to fast described and/or at a slow speed increment determine transmitting power.

In a kind of design, determine the transmitting power of R-ODCH, as follows:

P _{ODCH, s}=P _PICH+ Delta _{Tx, i, s}+ Boost equation (4)

Delta wherein _{Tx, i, s}Be the interweave quick increment of subregion s among the i of HARQ,

Boost is the enhancing of the transmitting power of current HARQ transmission,

P _ODCHIt is the transmitting power of the R-ODCH of each modulation symbol.

In the design shown in the equation (4), for each subregion that each HARQ that pays close attention to interweaves among the i is preserved quick increment.R-ODCH in the particular sub-area that specific HARQ interweaves sends each grouping.Then, the increment that is applicable to each grouping is used for determine the transmitting power of this grouping.Described Boost can be zero or nonzero value, and can be identical to all HARQ transmission, is different to different HARQ transmission perhaps.Also can determine the transmitting power of R-ODCH according to the other factors of for example service quality (QoS) etc.

In a kind of design, the quick OSI indication of subregion is upgraded this quick increment in the PHY frame that interweaves according to the HARQ of each quick increment, and is as follows:

Equation (5)

Wherein FastOSIStepUp is the rise of quick increment,

FastOSIStepDown is the downward modulation of quick increment,

FastOSIj, s are the quick OSI indications from the nearby sectors j of subregion s.

The following subregion at each concern of terminal 120x is preserved one group of nearby sectors.This group is called the monitoring group.Terminal 120x is only according to the quick increment of indicating to determine this subregion from the quick OSI of nearby sectors in the monitoring group of each subregion.In a kind of design, only the transfer of data with the corresponding OSI fast of response indication in terminal 120x interweaves for previous HARQ has been used quick increment, and terminal 120x just adjusts quick increment.In the another kind design, terminal 120x always adjusts quick increment, even also adjusts quick increment at the time durations that does not have transmission and interweave for unappropriated HARQ.Also can adjust quick increment based on decisions such as buffer sizes.

The value of quick increment is limited in the span, as follows:

Equation (6)

Delta wherein _{Max, i, s}Be Delta _{Tx, i, s}Maximum,

Delta _{Min, i, s}Be Delta _{Tx, i, s}Minimum value.

Select minimum value and the maximum of quick increment, reaching superperformance, and described minimum value and maximum can be value or the configurable values of fixing.For example, according to the dynamic range that receives signal, interference volume waits to arrange minimum increment size fast and maximum increment size fast in the sector of serving sector.

Terminal 120x identifies nearby sectors according to different tolerance for each subregion, to list in the monitoring group.In a kind of design, terminal 120x uses channel difference measurement, the difference between the channel gain that described channel difference measurement is nearby sectors and the channel gain of serving sector.Other that can send on the forward link according to TDM pilot tone, other pilot tone, pilot quality indicator (PQI) and/or by the sector transmits to estimate the channel gain of each sector.The channel difference of following calculating nearby sectors:

$\mathrm{ChanD}{\mathrm{iff}}_j=\frac{{\mathrm{RxPower}}_{\mathrm{RLSS}}}{{\mathrm{EffectiveTxPower}}_{\mathrm{RLSS}}}\·\frac{{\mathrm{EffectiveTxPower}}_j}{{\mathrm{RxPower}}_j}$ Equation (7)

RxPower wherein _RLSSBe the received power of serving sector on reverse link,

EffectiveTransmitPower _RLSSBe the transmitting power of serving sector,

RxPower _jBe the received power of nearby sectors j,

EffectiveTransmitPower _jBe nearby sectors j transmitting power and

ChanDiff _jBe the channel difference of nearby sectors j.

The channel gain of sector equals received power divided by transmitting power.The channel difference of nearby sectors j equals the ratio of the channel gain of the channel gain of this serving sector and nearby sectors j.If ChanDiff _jBeing less than or equal to one increases threshold value, and terminal 120x joins the monitoring group with nearby sectors j so.This standard guarantees that the reception signal strength signal intensity of nearby sectors j is enough strong, and can receive the quick OSI indication from sector j reliably.Terminal 120x may only cause significant interference to the nearby sectors in the monitoring group, thereby only indicates to adjust quick increment based on the quick OSI from these sectors.

Terminal 120x upgrades increment at a slow speed according to various factorss such as the channel difference of the conventional OSI indication from nearby sectors in the monitoring group that for example receives, nearby sectors, current transmitting power or PSD.Terminal 120x determines the decision variable of each sector based on the correlative factor of each sector.Described decision variable indicate whether to adjust at a slow speed increment and/or at a slow speed the increment adjustment what.The weighting decision-making that terminal 120x calculates these nearby sectors in the monitoring group according to decision variable and the channel difference of all nearby sectors.Terminal 120x adjusts increment at a slow speed according to described weighting decision-making then.Increment sends it back serving sector at a slow speed, and described serving sector is used to the new distribution of terminal 120x to determine the C/I value with out of Memory described increment at a slow speed.

Usually, terminal 120x adjusts at a slow speed with identical or different algorithm and quick increment according to identical or different parameter group.Comprise rise step-length and downward modulation step-length, decision-making value etc. for adjusting different parameters with quick increment at a slow speed.

Can determine by different way fast and the initial value of increment at a slow speed.In a kind of design, can calculate initial increment size as following mode:

$\frac{\mathrm{averageIoT}+\mathrm{pCoT}*\mathrm{Delta}}{\mathrm{averageIoT}}<\max \mathrm{IoTRise}$ Equation (8)

Wherein averageIoT be the average interference thermal noise of nearby sectors than (IoT),

PCoT be the reception carrier power thermal noise of the reference channel measured of nearby sectors than (CoT),

MaxIoTRise is that the maximum of the IoT of nearby sectors place allows to increase.

If the initial increment size of equation (8) is less than Minimum Increment value Delta _Min, then maximum can be supported bandwidth W _MaxCan reduce, thereby:

$\frac{\mathrm{averageIoT}+(W_{\max }/W_{\mathrm{total}})*\mathrm{pCoT}*\mathrm{De}{\mathrm{lta}}_{\min }}{\mathrm{averageIoT}}<\max \mathrm{IoTRise}$ Equation (9)

W wherein _TotalIt is the whole system bandwidth.Maximum can be supported that bandwidth sends to serving sector, and be used for distributing bandwidth to terminal 120x.

If distribute to the specific bandwidth W of terminal 120x, then can calculate initial increment size, thereby:

$\frac{\mathrm{averageIoT}+(W/W_{\mathrm{total}})*\mathrm{pCoT}*\mathrm{Delta}}{\mathrm{averageIoT}}<\max \mathrm{IoTRise}$ Equation (10)

According to current increment size, can support bandwidth W by limiting initial maximum _MaxControl the interference volume in the starting point of each transmission burst.Use equation (10) to calculate described W _Max, wherein W represents W _MaxTerminal 120x sends W to serving sector _Max, described serving sector can increase the bandwidth of subsequent allocations gradually, in order to leave quick OSI indication time enough for increment size is adjusted.

Also can otherwise determine initial increment size, and described initial increment size also can be called the open loop adjustment.In a kind of design, terminal 120x only carries out adjusted open loop in the starting point of each transmission burst.In another kind design, there is not dispatch terminal 120x if interweave at some HARQ, then 120x uses initial increment size as the maximum of increment fast, in order to prevent because the activity of few OSI indication makes quick increment become excessive.

Fig. 3 shows the design for the power control mechanism 300 of reverse link.Terminal 120x and serving sector 110 communicate, and nearby sectors is caused interference.Power control mechanism 300 comprises with reference to loop 302 and external loop-around 304.Move between terminal 120x and serving sector 110 with reference to loop 302, and adjust the transmitting power of R-PICH.External loop-around 304 moves between terminal 120x and nearby sectors, and adjusts at a slow speed and quick increment with quick OSI indication according to the conventional OSI indication from nearby sectors that receives.Move simultaneously with reference to loop 302 and external loop-around 304, but upgrade with different speed, for example upgrade more continually than external loop-around 304 with reference to loop 302.

For reference loop 302, come the received signal quality of the R-PICH of self terminal 120x in 310 estimations of the unit of serving sector 110.Unit 310 compares received signal quality and desired value, and generates the PC bit according to the result who is compared.Pilot tone, business datum and the signaling on PC bit and the forward link (cloud 352) handled and sent to emission processor 314.Terminal 120x is 110 reception PC bits from the sector.PC bit processor 360 detects each PC bit that receives the PC bit and corresponding detection is provided.The transmitting power that R-PICH is regulated based on the PC bit that detects from processor 360 in unit 362, for example, as in equation (3).

For external loop-around 304, nearby sectors 112 and 114 receives transmission at reverse link.In each nearby sectors, the inter-sector interference from terminal in other sector that this sector observes is estimated in unit 320.Unit 322 generates conventional OSI indication and OSI indication fast according to estimated interference, for example, and as shown in equation (1) and (2).Emission processor 324 is handled rule OSI indication and OSI indication fast, and with its on the forward link the terminal in other sector send.Pilot tone, business datum and signaling are also handled and sent to processor 324.Each nearby sectors also is forwarded to nearby sectors with the OSI indication, in order to be transferred to the terminal in the nearby sectors.At terminal 120x, OSI processor 380 receives conventional OSI indication and OSI indication fast from nearby sectors, and the OSI value of detection is provided.Channel estimator 382 is determined the channel difference of each nearby sectors according to pilot tone and/or other transmission.Unit 384 is according to the at a slow speed and quick increment of detected OSI value, channel difference and other parameter adjustment.The transmitting power of R-ODCH is determined according to transmitting power, increment and/or other parameter of R-PICH in unit 386, for example, and shown in equation (4).Emission processor 364 uses the transmitting power of R-ODCH, so that carry out transfer of data to serving sector 110.

For the purpose of clear, above describing according to the power control of the quick increment adjustment of quick OSI indication use based on increment.Also can use the transmitting power of conventional OSI indication and quick OSI indication adjusting terminal 120x according to other power control algorithm.

Fig. 4 shows the design of the process 400 that sends the OSI indication.Process 400 is carried out by sector/base station.(for example) a plurality of OSI that determine a plurality of subregions in each frame indicate, and wherein each subregion is corresponding to the different piece (square frame 412) of system bandwidth.These OSI indications are equivalent in above-described quick OSI indication.The interference that the terminal owing in the nearby sectors that square frame 412 estimation sectors observe produces.Each subregion is calculated the mean value of estimating interference, to obtain the average interference of this subregion.Determine the OSI indication of each subregion according to the average interference of this subregion.Each OSI indication comprises individual bit, (i) if in corresponding subregion, observe strong jamming, then this bit is set to first value (for example ' 1 '), if or (ii) in corresponding subregion, do not observing strong jamming, then this bit is set to second value (for example ' 0 ').

Handle this a plurality of OSI indications, so that the terminal in nearby sectors is transmitted (for example) broadcasting (square frame 414).For square frame 414, for these a plurality of OSI indications generate a at least report, wherein every part of report comprises that at least one OSI of at least one subregion indicates (square frame 416).For example, every part of report comprises that four OSI of four sub regions indicate.Every part of report comprises four bits of four OSI indications, and encodes to obtain coded-bit, described coded-bit is mapped to the sequence (square frame 418) of six modulation symbols.Can be set to zero to indicate six sequences that modulation symbol is null value that in four corresponding subregions, do not have strongly disturbing report to generate for each all four OSI indication.

In (for example) each superframe, according on system bandwidth and the long-term average interference of whole superframe, determine the conventional OSI indication (square frame 420) of system bandwidth.Determine conventional OSI indication according to being used at least one first threshold of longer-term average interference.Determine a plurality of OSI indications according at least one second threshold value higher than described at least one first threshold.This will cause a plurality of OSI indications to be compared with conventional OSI indication, more can not be set up.Send a plurality of OSI indications (square frame 422) with first rate (for example, every frame) and in first overlay area.Send conventional OSI indication (square frame 424) with second speed slower than first rate (for example, every superframe) and in second overlay area wider than first overlay area.

Fig. 5 shows the design for the device 500 that sends the OSI indication.Device 500 comprises: the module (module 512) that is used for a plurality of OSI indications of definite a plurality of subregions, indicate so that the module of transmitting (module 514) for the treatment of a plurality of OSI, be used for generating a at least module of reporting (module 516) of these a plurality of OSI indications, for every part of report being encoded and it being mapped to the module (module 518) of modulation symbol sequence, be used to system bandwidth to determine the module (module 520) of conventional OSI indication, the module (module 524) that is used for sending the module (module 522) of a plurality of OSI indications and is used for sending conventional OSI indication.

Fig. 6 shows the design of the process 600 that receives the OSI indication.Process 600 is carried out by terminal.Receive at least one OSI indication of at least one sub regions, wherein each subregion is corresponding to the different piece (square frame 612) of system bandwidth.At least one nearby sectors receives this at least one OSI indication from the monitoring group.Upgrade described monitoring group according to the channel gain of nearby sectors and the channel gain of serving sector.

Determine (for example, data channel) transmitting power (square frame 614) based on this at least one OSI indication.For square frame 614, adjust at least one increment (square frame 616) of at least one sub regions according to this at least one OSI indication.The increment of each subregion can: (i) increase, do not have strong jamming if whole OSI indications of this subregion all indicates, or (ii) reduce, have strong jamming if any OSI indication of this subregion is indicated.The transmitting power (square frame 618) of reference channel is determined in control according to closed power.Determine the transmitting power (square frame 620) of each subregion then according to the transmitting power of the increment of each subregion and reference channel.

This at least one OSI that receives this at least one subregion at least one interweave (for example HARQ interweaves) indicates, and wherein each interweaves and comprising a plurality of frames of the predetermined frame number of being separated by.The increment of each each subregion in interweaving is adjusted in the OSI indication that receives according to each subregion in interweaving at each, and use described increment determine to interweave in the transmitting power of subregion.

Also can in each superframe, indicate by the conventional OSI of receiving system bandwidth.Can also determine transmitting power according to conventional OSI indication.

Fig. 7 shows the design for the device 700 that receives the OSI indication.Device 700 comprises: the module (module 712) that is used at least one OSI indication of at least one sub regions of reception, be used for determining according to this at least one OSI indication the module (module 714) of transmitting power, be used for adjusting according to this at least one OSI indication the module (module 716) of at least one increment of this at least one subregion, be used for according to closed power control determine reference channel transmitting power module (module 718) and determine the module (module 720) of the transmitting power of each subregion according to the transmitting power of the increment of each subregion and reference channel.

Module among Fig. 5 and Fig. 7 can comprise processor, electronic equipment, hardware device, electronic component, logical circuit, memory etc., or any its combination.

Fig. 8 shows the block diagram of the design of terminal 120x, serving sector/base station 110 and nearby sectors/base station 112 among Fig. 1.In the sector 110, emission processor 814a receives business datum from data source 812a, come the signaling (for example PC bit) of self-controller/processor 830a and/or from the distribution of the temporal frequency resource of scheduler 834a.Emission processor 814a handles (for example encode, interweave and sign map) business datum, signaling and pilot tone, and modulation symbol is provided.The modulation symbol of modulator (MOD) 816a is carried out modulation (for example carrying out OFDM) and the output chip is provided.Transmitter (TMTR) 818a regulates (for example, converting simulation, amplification, filtering and up-conversion to) described output chip and generates forward link signal, sends described forward link signal through antenna 820a.

Sector 112 is handled terminal traffic data and the signaling of its service similarly.Described business datum, signaling and pilot tone are handled by emission processor 814b, by modulator 816b modulation, are regulated and are sent out through antenna 820b by transmitter 818b.

At terminal 120x, antenna 852 receives from sector 110 and 112 and the forward link signal of possible other sector.Receiver (RCVR) 854 is regulated (for example, filtering, amplification, down-conversion and digitlization) from the reception signal of antenna 852 and sampling is provided.856 pairs of samplings of demodulator (DEMOD) (for example OFDM) are carried out demodulation and sign estimation are provided.Receiving processor 858 is handled (for example, symbol de-maps, deinterleaving and decoding) described sign estimation, decoded data is provided and provides solution code signaling (for example, PC bit, OSI indication etc.) to controller/processor 870 to data sink 860.

On reverse link, emission processor 882 receives and handles from the business datum of data source 880 and comes the signaling of self-controller/processor 870, and symbol is provided.884 pairs of symbols of modulator are carried out modulation (for example, carrying out OFDM, CDM etc.) and the output chip are provided.Transmitter 886 is regulated described output chip, and generates reverse link signal, sends described reverse link signal through antenna 852.

In each sector, come the reverse link signal of self terminal 120x and other terminal to be received by antenna 820, regulate, handle by demodulator 842 demodulation and by receiving processor 844 by receiver 840.Processor 844 provides decoded data and provides the solution code signaling to controller/processor 830 to data sink 846.At serving sector 110, demodulator 842a estimates the received signal quality of terminal 120x.Controller/processor 830a generates the PC bit according to received signal quality for terminal 120x.In nearby sectors 112, demodulator 842b estimates the interference that the sector observes.Controller/processor 830b generates conventional OSI indication and OSI indication fast according to estimated interference.

Controller/ processor 830a, 830b and 870 be management sectors 110 and 112 and the operation of terminal 120x respectively.Memory 832a, 832b and 872 are respectively sector 110 and 112 and terminal 120x storage data and program code.Scheduler 834a dispatches the terminal of communicating by letter with 112 with sector 110 respectively with 834b, and to terminal distribution channel and/or temporal frequency resource.

Processor among Fig. 8 can be carried out the different function of the techniques described herein.For instance, processor 830a can realize among Fig. 3 that unit 310 and/or 312 is in order to provide service for the sector.Processor 830b realizes that unit 320 and/or 322 is used for nearby sectors among Fig. 3, and other process of process 400 and/or the techniques described herein in the execution graph 4.Processor 858,870 and/or 882 can be realized some or all of unit 386 to 360 among Fig. 3, is used for terminal 120x, and other process of process 600 and/or the techniques described herein in the execution graph 6.

Channel concept as herein described can refer to information or the transport-type by terminal or base station transmission.Do not need or do not use fixing or predetermined subcarrier group, time period or other are exclusively used in the resource of such transmission.In addition, the temporal frequency resource is for sending the exemplary resource that data and message/signaling can be assigned with and/or use.The temporal frequency resource also can comprise frequency sub-carrier, transmission symbol and/or other resource except the temporal frequency resource.

Can realize the techniques described herein in a different manner.For instance, these technology can realize in hardware, firmware, software or its combination.Realize that for hardware the processing unit (for example base station or terminal) that is used for carrying out the entity of described technology can be implemented in one or more application-specific integrated circuit (ASIC)s (ASIC), digital signal processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, electronic equipment, other is designed to carry out other electronic unit, computer or these the combination of function as herein described.

Realize that for firmware and/or software described technology can use code (for example process, function, module, instruction etc.) to realize that described code is carried out this described function.In general, can when realizing technology described herein, use any computer/processor-readable medium that visibly comprises firmware and/or software code to realize.For instance, firmware and/or software code can be stored in the memory (for example memory 832a, the 832b or 872 among Fig. 8), and are carried out by processor (for example processor 830a, 830b or 870).Memory can be implemented in the inside of processor or the outside of processor.Firmware and/or software code also can be stored in the computer/processor-readable medium, as random-access memory (ram), read-only memory (ROM), nonvolatile RAM (NVRAM), programmable read-only memory (prom), electric erasable PROM (EEPROM), flash memory, floppy disk, CD (CD), Digital video disc (DVD), magnetic data storage device or light data storage device etc.Code can be carried out by one or more computer/processor, and can be so that computer/processor is carried out some aspect of function described herein.

Provide foregoing description of the present invention to be intended to make that any technical staff of this area can make or use the present invention.To those skilled in the art, all be apparent to various modifications of the present invention, and under the situation of the spirit and scope of the present invention, the rule of this definition can being applied to other distortion.Therefore, the present invention also is not intended to be confined to example described herein and design, but meets the widest scope consistent with principle of the present invention and novel feature.

Claims (35)

1. one kind is used for method of wireless communication, comprising:

Determine to correspond respectively to a plurality of other sector interference OSI indications of a plurality of subregions, each subregion is corresponding to the different piece of system bandwidth, and

Handle described a plurality of OSI indication, so that transmission.

2. the method for claim 1, wherein described definite a plurality of OSI indications comprise:

In each frame of scheduled period, determine to correspond respectively to described a plurality of OSI indications of described a plurality of subregions.

3. the method for claim 1, wherein described definite a plurality of OSI indications comprise:

Estimate the interference that the terminal by nearby sectors that a sector observes causes, and

Determine to correspond respectively to described a plurality of OSI indications of described a plurality of subregions according to estimated interference.

4. method as claimed in claim 3, wherein, describedly determine that according to estimated interference the described a plurality of OSI indications that correspond respectively to described a plurality of subregions comprise:

Calculate the mean value that the estimation of each subregion is disturbed, obtaining the average interference of each subregion, and

Determine the OSI indication of each subregion according to the average interference of each subregion.

5. the method for claim 1, wherein

Each OSI indication comprises individual bit;

Wherein, described definite a plurality of OSI indications comprise:

If observe strong jamming in corresponding subregion, then the individual bit of each OSI indication is set to first value, and

If do not observe strong jamming in corresponding subregion, then the individual bit of each OSI indication is set to second value.

6. method as claimed in claim 3 further comprises:

Calculate the mean value that the estimation of described system bandwidth is disturbed, obtaining long-term average interference, and

Determine conventional OSI indication according to described long-term average interference.

7. the method for claim 1, wherein the described a plurality of OSI indications of described processing comprise:

For described a plurality of OSI indications generate a at least report, every part of report comprises that at least one OSI corresponding at least one subregion indicates.

8. method as claimed in claim 7, wherein, every part of report comprises four OSI indications that correspond respectively to four sub regions.

9. method as claimed in claim 8, wherein,

Every part of report comprises four bits of described four OSI indication;

Wherein, the described a plurality of OSI indications of described processing further comprise:

Every part of four bit report are encoded, with the acquisition coded-bit, and

According to the coded-bit of every part of report, for generating, every part of report has the sequence of six modulation symbols.

10. method as claimed in claim 7, wherein, the described a plurality of OSI indications of described processing further comprise:

Indication all is set to every part of report of predetermined value at least one OSI, for its generation has the sequence that value is zero modulation symbol.

11. method as claimed in claim 8, wherein, the described a plurality of OSI indications of described processing further comprise:

All being set to zero for whole four OSI indications does not have strongly disturbing every part of report with indication in corresponding four sub regions, for its generation has the sequence that value is six modulation symbols of zero.

12. the method for claim 1 further comprises:

Described a plurality of OSI indications are broadcasted to the terminal in the nearby sectors.

13. the method for claim 1 further comprises:

For described system bandwidth is determined conventional OSI indication; And

Send the conventional OSI indication of described system bandwidth.

14. method as claimed in claim 13 further comprises:

Send the described a plurality of OSI indications that correspond respectively to described a plurality of subregions with first rate, and

Send the described conventional OSI indication of described system bandwidth with second speed slower than described first rate.

15. method as claimed in claim 13 wherein, further comprises:

In first overlay area, send the described a plurality of OSI indications that correspond respectively to described a plurality of subregions, and

In second overlay area bigger than first overlay area, send the described conventional OSI indication of described system bandwidth.

16. method as claimed in claim 13, wherein:

According to being used for relatively estimating that at least one first threshold of disturbing determines described conventional OSI indication, and

Determine described a plurality of OSI indication according at least one second threshold value higher than described at least one first threshold.

17. a device that is used for radio communication comprises:

Be used for determining corresponding respectively to the module of a plurality of other sector interference OSI indications of a plurality of subregions, each subregion is corresponding to the different piece of system bandwidth;

Indicate so that the module of transmitting for the treatment of described a plurality of OSI.

18. device as claimed in claim 17 is wherein, described for determining that the module that a plurality of OSI indicate comprises:

Be used in each frame of scheduled period, determining corresponding respectively to the module of described a plurality of OSI indications of described a plurality of subregions.

19. device as claimed in claim 17, wherein, described module for the treatment of a plurality of OSI indications comprises:

Be used to described a plurality of OSI indication to generate the module of a at least report, wherein, every part of report comprises that at least one OSI corresponding at least one subregion indicates.

20. device as claimed in claim 19, wherein,

Every part of report comprises four OSI indications of four sub regions; And

Wherein, described module for the treatment of a plurality of OSI indications further comprises:

For the module of every part of report being encoded to obtain coded-bit;

The coded-bit that is used for according to every part of report is the module that every part of report generates the sequence with six modulation symbols.

21. device as claimed in claim 20, wherein, described module for the treatment of a plurality of OSI indications further comprises:

Being used for all being set to zero for all four OSI indications does not have strongly disturbing every part of report with indication at four corresponding subregions, for its generation has the module that value is the sequence of six modulation symbols of zero.

22. device as claimed in claim 17 further comprises:

Be used to described system bandwidth to determine the module of conventional OSI indication; And

The module that is used for the conventional OSI indication of the described system bandwidth of transmission.

23. one kind is used for method of wireless communication, comprises:

Reception corresponds respectively at least one other sector interference OSI indication of at least one subregion, and each subregion is corresponding to the different piece of system bandwidth, and

Determine transmitting power according to described at least one OSI indication.

24. method as claimed in claim 23, wherein, described definite transmitting power comprises:

According at least one increment of at least one sub regions of described at least one OSI indication adjustment, and

Determine the transmitting power of each subregion according to the increment of each subregion.

25. method as claimed in claim 24, wherein, described definite transmitting power comprises:

The transmitting power of reference channel is determined in control according to closed power, and

Determine the transmitting power of each subregion according to the increment of the transmitting power of described reference channel and each subregion.

26. method as claimed in claim 24, wherein, at least one increment of described adjustment comprises:

Indication is all indicated and is not had strongly disturbing each subregion for all OSI, increases its increment, and

For there being OSI to indicate strongly disturbing each subregion, reduce its increment.

27. method as claimed in claim 23, wherein,

At least one OSI indication of described reception comprises:

Receive at least one described at least one OSI indication that corresponds respectively to described at least one subregion in interweaving, each interweaves and comprising a plurality of frames of the predetermined frame number of being separated by,

Described definite transmitting power comprises:

The OSI of each subregion indication in interweaving according to each that receives, adjust each interweave in the increment of each subregion, and

The increment of each subregion in interweaving according to each, determine each interweave in the transmitting power of each subregion.

28. method as claimed in claim 23, wherein, at least one OSI indication of described reception comprises:

Reception is indicated from least one OSI of at least one nearby sectors in the monitoring group, and

Upgrade described monitoring group according to the channel gain of nearby sectors and the channel gain of serving sector.

29. method as claimed in claim 23 further comprises:

Receive the conventional OSI indication of described system bandwidth, and

Also determine transmitting power according to described conventional OSI indication.

30. a device that is used for radio communication comprises:

Be used for receiving the module of at least one other sector interference OSI indication that corresponds respectively at least one subregion, each subregion is corresponding to the different piece of system bandwidth; And

Be used for determining according to described at least one OSI indication the module of transmitting power.

31. device as claimed in claim 30, wherein, described module for definite transmitting power comprises:

Be used for adjusting according at least one OSI indication the module of at least one increment of at least one sub regions; And

Be used for determining according to the increment of each subregion the module of the transmitting power of each subregion.

32. device as claimed in claim 31, wherein, described module at least one increment of adjustment comprises:

Do not have strongly disturbing each subregion for all indicating for all OSI indications, increase the module of its increment; And

Be used for having strongly disturbing each subregion for there being OSI to indicate, reduce the module of its increment.

33. device as claimed in claim 30, wherein,

Described module at least one OSI indication of reception comprises:

Be used for to receive the module of at least one at least one OSI indication of corresponding respectively at least one subregion of interweaving, each interweaves and comprising a plurality of frames of the predetermined frame number of being separated by; And

Described module for definite transmitting power comprises:

Be used for according to the OSI indication of each each subregion that interweaves that receives adjust each interweave in the module of increment of each subregion; And

Be used for according to the increment of each each subregion that interweaves determine each interweave in the module of transmitting power of each subregion.

34. device as claimed in claim 30, wherein, described module at least one OSI indication of reception comprises:

Be used for receiving the module from least one the OSI indication of at least one nearby sectors of monitoring group; And

Be used for upgrading according to the channel gain of the channel gain of nearby sectors and serving sector the module of described monitoring group.

35. device as claimed in claim 30 further comprises:

The module that is used for the conventional OSI indication of the described system bandwidth of reception, and

For the module of also indicating to determine described transmitting power according to described conventional OSI.

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