CN1871862B - Pilot signals for use in multi-sector cells - Google Patents

Pilot signals for use in multi-sector cells Download PDF

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CN1871862B
CN1871862B CN2004800108398A CN200480010839A CN1871862B CN 1871862 B CN1871862 B CN 1871862B CN 2004800108398 A CN2004800108398 A CN 2004800108398A CN 200480010839 A CN200480010839 A CN 200480010839A CN 1871862 B CN1871862 B CN 1871862B
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sector
transmission power
pilot
preselected
signal
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CN2004800108398A
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Chinese (zh)
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CN1871862A (en
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厉隽怿
拉吉弗·拉罗亚
约翰·L·范
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高通股份有限公司
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Priority to US60/449,729 priority
Priority to US10/648,766 priority
Priority to US10/648,766 priority patent/US7218948B2/en
Priority to US10/648,767 priority patent/US9544860B2/en
Priority to US10/648,767 priority
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Priority to PCT/US2004/005242 priority patent/WO2004077728A2/en
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Abstract

Pilot signal transmission sequences and methods are described for use in a multi-sector cell. Pilots in different sectors are transmitted at different known power levels. In adjacent sectors a pilot is transmitted while no pilot is transmitted in the adjoining sector. This represents transmission of a NULL pilot signal. A cell NULL is also supported in which NULL pilots are transmitted in each sector of a cell at the same time. Multiple pilot signal measurements are made. At least two channel quality indicator values are generated from measurements corresponding to at least two pilot signals of different power levels. The two values are transmitted back to the base station which uses both values to determine the transmit power required to achieve a desired SNR at the wireless terminal. The wireless terminal also reports information indicating its location to a sector boundary.

Description

在多扇区小区中使用的导频信号 Guide used in the multi-sector cell in the pilot signal

技术领域 FIELD

[0001] 本发明涉及无线通信系统,尤其涉及一种用于在多扇区小区中发射导频信号的方法和设备,其中所述多扇区小区例如可以是具有同步扇区传输的小区。 [0001] The present invention relates to wireless communication systems and more particularly relates to a method and apparatus for transmitting a pilot signal used in the multi-sector cell, wherein the multi-sector cell, for example, may be a synchronous transmission sector cell.

背景技术 Background technique

[0002] 在诸如蜂窝系统这样的无线通信系统中,信道状态是无线系统操作中的一个很重要的考虑因素。 [0002] In the radio communication system such as a cellular system, a wireless channel state operation of the system is a very important consideration. 在无线通信系统内部,基站(BS)会与诸如移动节点这样的多个无线终端(WT)进行通信。 Within a wireless communication system, a base station (BS) may communicate with a plurality of wireless terminals such as mobile nodes (WT). 其中举例来说,当无线终端移动到基站小区内部的不同位置时,基站与无线终端之间的无线通信信道状态有可能会因为不断变化的噪声和干扰电平而改变。 Wherein for example, when the wireless terminal moves to different locations within a cell of a base station, a wireless communication channel state between the base station and the wireless terminal may fail because of the noise and interference level changing changed. 无线终端接收机所遭遇的噪声和干扰有可能包括背景噪声、自噪声以及扇区间干扰。 The wireless terminal receiver noise and interference encountered possibly including background noise, and the noise from inter-sector interference. 背景噪声可以归入与基站传输功率电平无关的噪声。 Background noise can be classified irrespective of the base station transmission power level of noise. 然而,自噪声和扇区间干扰则依赖于基站的传输功率电平,例如一个或多个扇区中的传输功率。 However, since the inter-sector interference and noise is dependent on the base station's transmission power level, for example, the transmission power of one or more sectors.

[0003] 用于评估通信信道状态的一种常用方法是由基站发送导频信号,其中导频信号通常是在一小部分传输资源上发射的,并且该信号通常包含了以单一的恒定功率电平发射的已知(预先确定的)码元。 [0003] A common method for evaluating the state of the communication channel is a pilot signal transmitted by a base station, wherein the pilot signal is typically transmitted on a small portion of the transmission resource, and the signal typically comprises a single constant power level transmissions known (predetermined) symbols. 无线终端对导频信号进行测量,并且将其以信噪比(SNR)这种标量比形式或是等价量度形式报告给BS。 The wireless terminal of pilot signal measurements and reports either to their metric equivalents signal to noise ratio (SNR) than the standard form of this BS. 如果噪声/干扰与传输信号无关,例如在背景噪声非常突出并且自噪声和扇区间干扰的影响很小的情况下,那么,这种单一的标量量度足以使BS预测出无线终端上的接收SNR如何随信号发射功率而改变。 If the noise / interference signal independent of the transmission, for example, background noise is very prominent and the self noise and inter-sector interference influence is small, then this single scalar metric is sufficient to predict the received SNR BS on how the radio terminal with the signal transmission power is changed. 然后,对于特定纠错编码方案以及所使用的调制方案,基站可以为其确定在无线终端上达到可接受的接收SNR所需要的最小传输功率电平。 Then, for a particular error correction coding scheme and the modulation scheme used, the base station can determine the transmission power level reaches a minimum acceptable received SNR required on the wireless terminal. 但是,如果总噪声/干扰包含了与信号传输功率相关的重大成分, 例如由相邻扇区中的基站传输造成的扇区间干扰,那么用于从一个固定强度等级的导频信号中获取SNR的常用技术是无法满足需要的。 However, if the total noise / interference includes major components associated with signal transmission power, for example, caused by inter-sector base station transmitting interference in neighboring sectors, then the SNR for obtaining a guide from a fixed intensity level of the pilot signal common technique is unable to meet the need. 在这种情况下,对使用这种常用技术所获取的信息,例如单个传输功率电平上的SNR而言,该信息不足以使基站精确预测出WT上作为信号发射功率函数的接收SNR。 In this case, the information obtained using such conventional techniques, e.g. SNR over a single transmission power level, the base station information is not sufficient to accurately predict the received SNR as a function of the signal transmit power WT. 无线终端则需要产生和收集附加信道质量信息,并且将这些信息中继到基站,由此基站可以对无线终端函数求解,以便将接收SNR与基站信号传输功率电平相关联。 The wireless terminal then needs to generate and collect additional channel quality information, and the information relayed to the base station, whereby the wireless terminal station function can be solved, so that the base station received SNR signal transmission power level is associated. 通过获取这个用于无线终端通信信道的函数,并且在了解了关于特定编码速率、纠错编码以及所用调制方案的接收SNR的可接受电平的情况下,基站调度器可以有效地将具有恰当功率电平的信道中的分段分配给无线终端,由此达到可接受的SNR,并且限制被浪费的传输功率和/或减小总的干扰电平。 This function is used by the wireless terminal obtaining a communication channel, and in the understanding of the case on a particular coding rate, and the acceptable level of error correction coding of the received SNR for the modulation scheme, the base station scheduler may have the correct power efficiently channel segment allocated to the wireless terminal level, thereby achieving the SNR acceptable, and wasted transmit power limit and / or reduce the total interference level.

[0004] 从以上论述中可以清楚了解,在这里需要一种用于测量、估计和报告信道质量的新颖设备和方法,其中所述方法和设备可以为基站提供足够信息,以便获取作为基站发射功率函数的无线终端接收信号的SNR,特别地,对多扇区无线通信系统来说,所述方法和设备尤其是必需的。 [0004] From the above discussion it is clear understanding, here is a need for measuring, and a novel apparatus and method of reporting channel quality estimation, wherein the method and apparatus may provide enough information for the base station, as base station transmit power to obtain the wireless terminal as a function of SNR of the received signal, in particular, to the multi-sector wireless communications systems, the method and apparatus particularly required. 此外,为了支持经过改进和/或变化更多的信道质量测量,较为理想的是提供新的导频信号图形、序列和/或导频信号传输功率电平,其中所述图形、序列和/或电平可以帮助分析来自小区中的其他扇区的自噪声和干扰。 Further, in order to support improved and / or more changes in channel quality measurement, it is desirable to provide a new pilot signal pattern, sequence and / or the pilot signal transmission power level, wherein said pattern, sequence and / or It can help analyze the level of noise and interference from other sectors from the cell. 发明内容 SUMMARY

[0005] 在这里对经过改进的导频信号序列进行了描述,其中举例来说,所述导频信号序列是通过使用不同的信号导频传输功率电平来帮助执行多信道质量测量的。 [0005] Here for improved pilot signal sequences are described, for example, wherein the pilot signal sequences by using different pilot signal transmission power levels to help perform channel quality measurements. 在不同的实施方式中,所发射的导频序列会帮助确定小区中其他扇区的干扰的影响,其中所述其他扇区与执行导频信号测量的扇区使用的是相同的音调,例如采用同步方式。 In various embodiments, the pilot transmitted pilot sequence will help determine the impact of interference in the other cell sectors, wherein the sectors and the other sectors perform pilot signal measurements using the same tone, for example using Synchronously.

[0006] 如果不同扇区同时在某个音调上使用大致相同的功率来进行发射,那么在来自其他扇区的信号产生干扰的同时,由于传输功率会对在扇区中遭遇的噪声总量产生影响,因此可以将来自其他扇区的信号视为与自噪声相似或相同。 [0006] If a different sector substantially simultaneously transmit using the same power on a tone, then the signal at the same time from the other sectors of the interference due to the total transmission power of the noise encountered in the sector will produce Effects, can thus be considered as signals from other sectors and noise from similar or identical.

[0007] 为了测量相邻扇区的噪声影响,当在执行接收导频信号测量的扇区中发射具有预选和已知的非零功率的导频信号时,这时相邻扇区中将会发射一个扇区零导频(NULL pilot),例如零功率的导频。 When [0007] In order to measure noise adjacent sector, when the received pilot signal measurements performed in the sector transmitting the pilot signal having a preselected and known non-zero power, then neighboring sectors will transmitting a sector null pilot (NULL pilot), such as pilot power of zero. 为了帮助测量背景噪声,在某些实施例中为零小区(Cell NULL)提供了支持。 To help measure the background noise, a zero cell (Cell NULL) In certain embodiments, provided support. 对零小区而言,小区中的所有扇区都会在测量背景噪声的音调上发射零导频。 Zero cells for all sectors of cells will transmit on the null pilot tone background noise measurement. 由于在测量过程中并未在小区中在这个音调上发射功率,因此,在这个音调上测得的任何信号都可以归于噪声,例如包含了小区间干扰的背景噪声。 Since this is not the tone transmit power in the cell in the measurement process, therefore, any signal at the measured tone noise can be attributed to, for example, the background noise contains inter-cell interference.

[0008] 本发明的导频序列和信号测量提供了若干机制,如果存在与信号相关的噪声,那么这些机制能使无线终端(WT)以及从WT接收信道状态反馈信息的BS为WT预测下行链路的接收SNR,其中所述接收SNR是信号发射功率的函数。 [0008] The guide of the present invention the pilot sequence signal measurement provides several mechanisms, if the signal-dependent noise is present, these mechanisms allow the wireless terminal (WT) and the feedback BS information from a WT receives channel state WT prediction downlink received SNR path, wherein the received SNR is a function of the signal transmit power. 与单一的SNR值相反,依照本发明, 来自单个WT的反馈通常为各个WT包含了至少两个信道质量指示值,这其中的每一个信道质量指示值都是用不同函数产生的。 In contrast to a single SNR value, in accordance with the present invention, the feedback from a single WT typically comprises at least two channel quality indicator values ​​for each WT, of which each channel quality indicator values ​​are generated with a different function. 在这两个信道质量指示值的生成器函数中,其中一个函数将第一导频信号测量结果作为输入,并且所述第一导频信号测量结果与具有第一已知传输功率的接收导频信号相对应。 In both generator function channel quality indicator value, wherein the first function is a pilot signal measurement result as input, and the first pilot with the received pilot signal measurements having a first known transmission power of the pilot signal, respectively. 此外,在这两个信道质量指示值的生成器函数中,另一个函数则是将第二导频信号测量结果作为输入,并且所述第二导频信号测量结果与具有第二已知传输功率的第二接收导频信号相对应,其中第二已知传输功率不同于第一已知传输功率。 Further, the two function generators in the channel quality indicator value, the second pilot sucked another function measurement as an input signal and the second pilot signal measurement result with a second known transmission power receiving a second signal corresponding to the pilot, wherein the second known transmission power different from the first known transmission power. 在第一和第二信道质量指示值生成器函数中,每一个函数都可以作为软件模块或硬件电路来加以实现,此外也可以具有除所述的输入之外的附加输入。 In the first and second channel quality indicator value generator functions, each function can be implemented by a hardware circuit or as a software module, in addition, may have additional inputs other than the input.

[0009] 来自单个WT的反馈为每一个WT都包含了至少两个信道质量指示值,这些指示值是用不同函数产生的,此外,所述反馈能使基站(BS)根据接收机需要的相应SNR而以不同信号功率、例如最小信号功率来对不同的WT执行发射操作。 [0009] Feedback from a single WT for each WT contains at least two channel quality indicator values, these values ​​are indicative of different function generates, in addition, the feedback can make the base station (BS) receiver according to a respective desired the SNR at different power signals, such as the minimum signal power emit different operations performed on the WT. 虽然BS的总的发射功率通常是已知或固定的,但是分配给不同WT的比例则可以不同,并且可以随时间而变化。 Although the total transmit power of the BS is typically known or fixed but the proportion allocated to different WT may be different and may vary over time. 在WT接收机上,作为接收信号功率函数的总噪声相关性可以用线来模拟,并且在本发明中将这条线称为“噪声特征线”。 On the WT receiver, the received signal power as a function of the total noise correlation can be used to simulate the lines, and these lines referred to as "noise characteristic line" in the present invention. 由于噪声特征线通常不会经过原点,因此单个标量参数不足以表征这条线。 Since the noise characteristic line generally does not pass through the origin, a single scalar parameter is not sufficient to characterize this line. 为了确定这条线,至少需要使用两个参数。 In order to determine this line, at least two required parameters.

[0010] 基站会在下行链路上发射导频信号。 [0010] The base station may transmit a pilot signal on the downlink. 依照本发明,通过发射不同强度等级的导频信号,可以确定无线终端的噪声特征线。 According to the present invention, by the guide emitting different intensity levels of the pilot signal, the noise characteristic line may determine the wireless terminal. 一般来说,第一导频信号是在第一功率电平上发射的,由此获取第一个点,而第二导频信号则是在与第一功率电平不同的第二功率电平上发射的,由此获取第二个数据点。 In general, the first pilot signal is transmitted at a first power level, thereby obtaining a first point and the second pilot signal is at a first power level to a second power level different the transmission, thereby acquiring the second data point. 在某些实施例中,第二功率电平可以为零。 In certain embodiments, the second power level may be zero. 上述导频信号方案可用于使用全向天线的小区,也就是只有一个扇区的小区。 The above-described pilot signal scheme may be used for cell omnidirectional antennas, i.e. only one sector of the cell.

[0011] 在扇区化小区环境中,本发明还确定了作为信号发射功率函数的SNR。 [0011] In the sectorized cell environment, the present invention also determines the transmission power signal as a function of SNR. 在一种扇区化方法中,小区中的每一个不同扇区都可以使用全部或是几乎全部的传输资源(例如频带)而在每一个扇区中执行发射操作。 In one method the sector, each sector of a different cell may use all or almost all of the transmission resources (e.g., frequency band) in each transmission operation is performed in one sector. 每一个扇区的总的发射功率通常是固定或已知的, 但是不同的WT可以使用不同的功率来接收信号。 Total transmit power of each sector is typically fixed or known, but different WT may use different power to the received signal. 由于扇区之间的隔离并不完美,因此在某个扇区中发射的信号有可能成为其他扇区的噪声(干扰)。 Because isolation between sectors is not perfect, the signal transmitted in a certain sector in the other sectors may become a noise (interference). 此外,如果每一个扇区被迫以指定自由度(例如时隙)来发射相同或者几乎相同的信号功率(或者在不同扇区中以固定比例发射信号功率),那么来自其他扇区的针对指定扇区中的WT的干扰将会具有信号相关噪声或自噪声的特性。 Further, if each of the sectors are forced to specify the degree of freedom (e.g. time slots) to transmit the same or nearly the same signal power (or transmit signals at a fixed power ratio different sectors), then from the other sectors for a given WT interference sectors will have a characteristic signal related to noise or white noise. 特别地,这种情况即为来自其他扇区的干扰随信号功率改变的情况,该情况会在不同扇区被迫以指定自由度来发射相同或成比例的功率的实施例中出现,其中举例来说,所述自由度可以是OFDM多址接入系统中的音调。 In particular, such a case is the case where interference from other sectors with a signal power change, the case will be forced to specify the degree of freedom to transmit the same or proportional to the power of the embodiment shown in different sectors, for example wherein speaking, the degree of freedom may be a multiple access OFDM system pitch.

[0012] 依照本发明,处于预定和已知的不同强度等级上的常规导频会从基站发射到无线终端,以便对WT上的总噪声与BS传送到WT的信号功率之间的相关性进行表征。 [0012] In accordance with the present invention, the guide is conventional and known in the predetermined frequency different intensity levels from the base station will transmit to the wireless terminal for transmission to the BS with the correlation between the signal power to the overall noise WT WT on characterization. 不同扇区可以并且经常受到控制,以便同时在相同音调上传送至少一些导频。 Different sectors may be controlled, and often, in order to simultaneously transmit at least some of the pilots on the same tone. 此外,不同的扇区还经常受到控制,以便在每一个扇区中将不同的预定传输功率电平用于在某个音调上传送的导频信号。 In addition, different sectors often controlled to a pilot signal transmitted on a different tone in each of the sectors in the predetermined transmission power level. 例如,在时间Tl以及音调1上,通过对第一扇区进行控制,可以使用第一功率电平来发射导频信号,与此同时,通过对相邻扇区进行控制,可以在相同的时间Tl以及音调1上使用第二功率电平来发射导频信号,其中第二功率电平不同于第一功率电平。 For example, at time Tl 1 and the pitch, by controlling the first sector, a first power level may be used to transmit a pilot signal, at the same time, by controlling the adjacent sectors, can at the same time use Tl 1 and a second tone power level to transmit a pilot signal, wherein the second power level different from the first power level.

[0013] 依照本发明的一个实施例,“小区零导频”将会与常规导频结合使用,以便表征WT 上的总噪声与BS发射到所述WT的信号功率之间的相关性。 [0013] According to one embodiment of the present invention, "cell null pilots" will be used in conjunction with a conventional guide frequency in order to characterize the total noise on WT and the BS transmits a signal to the correlation between the power of the WT. 小区零导频是下行链路资源(自由度),在所述资源中小区的所有扇区都不发射功率。 Cell null pilots are downlink resources (degrees of freedom), the resources in all sectors of the cell is not transmit power. 在这些自由度上测得的噪声提供了关于WT上的信号相关噪声的估计。 These degrees of freedom in the measured noise signal provides an estimate of the correlated noise on the WT. 常规导频(或者简称为导频)是小区中的各个扇区使用固定或预定功率发射已知码元的资源。 Conventional pilot (or simply, the pilot) is a respective sector of the cell using a fixed or predetermined known symbol transmit power resources. 因此,在这类导频上测得的噪声包含了扇区间干扰,并且该噪声还提供了包括信号相关噪声在内的总噪声估计。 Thus, in such a pilot on the measured noise it includes inter-sector interference, and the noise is also provided comprising the overall noise signal including a noise correlation estimate.

[0014] 本发明的一个特征涉及的是“扇区零导频”的概念。 [0014] One feature of the present invention relates to a "sector null pilot" concept. 举例来说,当WT处于两个扇区的边界,并且通过对这两个扇区间的调度进行协调而使边界上的WT不会接收来自其他扇区的干扰的时候,这时可以在扇区化的蜂窝无线系统中使用扇区零导频,以便估计WT上的噪声。 For example, when the WT at the boundary of two sectors, and does not receive interference from other sectors by scheduling between these two sectors for the coordination of the boundary WT, then the sector can be use of the cellular radio system sector null pilot, in order to estimate the noise on the WT. 扇区零导频可以是下行链路资源,在所述资源中,小区中的一个扇区并未发射任何信号能量,而其余或相邻扇区则会发射非零导频之类的常规导频。 Sector null pilots may be downlink resources, the resources in one sector of the cell does not transmit any signal energy, while the remainder will be a conventional conductive or non-zero neighboring sectors as a pilot transmission frequency.

[0015] 更概括地说,在这里还可以定义其他类型的扇区零导频,其中举例来说,在所述扇区零导频中,小区中的扇区子集并未在下行链路资源上发射信号,而剩余扇区则发射常规导频。 [0015] More generally, where you can define additional types of sector null pilot, wherein for example, the sector null pilot, the subset of sectors in the cell is not a downlink resources transmit signals, while the remaining sectors of the conventional pilot emitter. 此外,更概括地说,通过在扇区之间进行协同调度,可以使BS减小(但是未必消除) 某些扇区上的发射功率,从而减小WT接收来自其他扇区的干扰。 Further, more generally, by the coordinated scheduling between sectors, BS can reduce (but not necessarily eliminate) the transmit power on some sectors, thereby reducing the WT receives interference from other sectors. 在某些情况下,相对于在某个音调上发射导频的扇区,数据是在与之相邻的扇区中以及相同的音调上发射的。 In some cases, with respect to the transmitting sector pilot on a certain tone, the data is transmitted in the adjacent sectors and the same pitch.

[0016] 在不同的常规强度导频和/或不同零导频类型的帮助下,WT可以估计接收机上的噪声,其中该噪声是在不同条件下传送到所述WT的信号功率的函数。 [0016] In the various conventional strength of the pilot and / or different types of help null pilot, the noise can be estimated on the WT receiver, wherein the noise signal is a function of the power transmitted to the WT in different conditions. 本发明自身还涉及将该信息从WT发射到BS,以使BS能在全向小区和扇区化小区环境中确定用于向不同的WT执行发射操作的功率。 The present invention further relates to the information itself transmitted from the WT to the BS, so that the BS can determine in the whole cell and the cell sectorized environment for performing transmit power to different WT operation. 与现有技术不同,信道质量信息并不是单一的标量值,而是包含了两个或更多的值,除了反映背景噪声之外,这些值还可用于反映自噪声和/或扇区间噪声的影响。 Unlike the prior art, the channel quality information is not a single scalar value, but contains two or more values, in addition to reflecting background noise outside the room can also be used to reflect these values ​​from the noise and / or noise sector Impact.

[0017] 在与基于OFDM的蜂窝无线系统相关的发明实施例中,导频包含了基站在指定音调上(以及指定的码元时间)以固定或预定功率发射的已知码元,零导频则通常是空闲音调,也就是说,零导频的传输功率为零。 [0017] In an embodiment related to the cellular radio system based on OFDM the invention, the base station comprising a pilot (and designated symbol time) at a fixed or predetermined power emitted at the designated pitch known symbol, a pilot zero is typically idle tones, that is, the transmission power of the null pilot is zero.

[0018] 在这里将全向天线配置通称为“全向小区”,并且在所述全向天线配置所使用的实施例中,WT对包括所有噪声/干扰源在内的导频音调上的SNR进行测量,其中所述噪声/干扰源包含了与导频发射功率相关的噪声。 [0018] In this configuration the whole antenna is known as "omni cell", and in the embodiment of the omnidirectional antenna configuration used in the, WT comprises a pair of guide all the noise / interference sources including pilot tones on SNR measurement, wherein the noise / interference source comprises the pilot transmission power and noise associated. 此外,WT还使用了一个或多个小区零导频音调来测量噪声。 In addition, WT also uses one or more cell null pilot tones measurement noise. 通过获取接收导频功率与噪声测量结果的比值,可以提供一个受限于信号相关噪声/干扰的SNR。 By obtaining received pilot power to noise ratio of the measurement results can be provided is limited to a SNR signal dependent noise / interference. 然后,WT会将这两个SNR值或是某种等价的统计数值组合回送到BS。 Then, WT will both SNR statistic values ​​or some combination of equivalent back to the BS.

[0019] 在具有定向扇形天线的扇区化配置实施例中,将一个单独的小区分为多个扇区, 并且某些或所有扇区可以共享相同频带(自由度),这种情况对应的是大小为1的频率复用率。 [0019] In the configuration having a directional sector antenna sectorized embodiment, a single cell is divided into a plurality of sectors, and some or all sectors can share the same frequency band (DOF), this case corresponds to is the size of a frequency reuse rate is 1. 并且在这种情况下,除了小区零导频之外,本发明还描述了那些存在于某个扇区子集而不是所有扇区中的扇区零导频的用途以及导频音调图形,由此其中一个扇区中的零导频音调与某些或所有其他扇区中的导频音调是时间/频率同步的。 And in this case, in addition to the cell null pilot, the present invention also describes some of those present in the subset of sectors rather than all sectors of sector null pilot and pilot tones use pattern, the this wherein a sector null pilot tones and some or all of the other sectors in the pilot tone is the time / frequency synchronization. 这样则允许WT测量两个或更多信噪比,这其中包含了来自不同小区组合的干扰。 Such measurements allow WT two or more signal to noise ratio, which includes the interference from a different cell combinations. 在反向链路上,WT将会报告一组与SNR有关的统计数值,由此使得BS能对WT上作为基站发射功率函数的接收SNR等级进行评估。 On the reverse link, WT will report a set of statistical values ​​related to the SNR, thereby enabling the BS can evaluate the received SNR levels as a function of the base station transmission power WT. BS则使用所报告的信道质量值来确定用以执行发射操作的功率电平,从而在WT上达到预期的SNR。 BS then uses the reported channel quality value is determined to perform the operation of transmitting power level to achieve the desired SNR at the WT.

[0020] 依照本发明,无线终端对至少两个不同的接收导频信号进行测量,所述导频信号是用不同的第一和第二预选及已知功率电平发射的。 [0020] the present invention, a wireless terminal for at least two different received pilot signal is measured in accordance with the pilot signal is different from the first and second preselected and known power level transmitted. 例如,这两个功率电平可以是固定的非零功率电平以及大小为零的传输功率电平,但是其他功率电平组合同样是可行的,并且在这里并未强制要求其中一个功率电平是零功率电平。 For example, the two power levels can be fixed non-zero power level and a transmit power level of zero size, but other combinations of the same power level are possible, this is not mandatory and wherein a power level zero power level. 从测量第一接收导频信号中获取的值将会由第一函数进行处理,以便产生第一信道质量指示值。 Receiving a first pilot signal value obtained from the measurement will be handled by the first function, so as to generate first channel quality indicator value. 而从测量第二接收导频信号中获取的第二测量信号值则由不同于第一函数的第二函数进行处理,以便产生第二信道质量指示值。 And the second measurement signal value obtained from the measurement of the second received pilot signal by a second function different from the first function is processed to produce a second channel quality indicator value. 并且第一和第二信道质量指示值将会从无线终端传送到基站。 And the first and second channel quality indicator value will be transmitted from the wireless terminal to the base station. 在某些实施例中,这些指示值可以在单一的消息中发射,而在其他实施例中,这些指示值是在不同的消息中发射的。 In certain embodiments, the indicator value can be transmitted in a single message, whereas in other embodiments, these values ​​are transmitted in indicating a different message. 例如,信道质量指示值可以是SNR值或功率值。 For example, a channel quality indicator value may be a power value or SNR value. 因此,第一和第二信道质量指示值既可以都是SNR值,也可以都是功率值,或者,其中一个指示值是SNR值而另一个指示值是功率值。 Thus, the first and second channel quality indicator values ​​are either SNR values, power values ​​are also possible, or, where the indicator value is a SNR value is a power instruction value and the other value. 其他类型的值同样可以用作信道质量指示值,而SNR和功率值只是作为示范。 Other types of values ​​also be used as a channel quality indicator value, and the SNR and power values ​​only as exemplary.

[0021] 在某些实施例中,WT确定其相对于扇区边界的位置,并且将这个位置信息报告给基站。 [0021] In certain embodiments, WT determines its position relative to a sector boundary, and the location information to the base station. 所述位置信息将会报告到基站。 The position information will be reported to the base station. 除了两个信道质量指示值之外,所报告的位置信息往往是作为单独的消息发送的。 In addition to the two channel quality indicator values, position information transmitted is often reported as a separate message. 然而在某些情况下,位置信息与两个信道质量指示值也可以在同一个消息中发射。 However, in some cases, the position information of the two channel quality indicator values ​​may be transmitted in the same message.

[0022] 在下文的详细描述中将会论述本发明的方法和设备的众多附加特征、益处以及实施例。 [0022] Additional features will be discussed in a number of methods and apparatus of the present invention, the benefit of the following detailed description and examples.

附图说明 BRIEF DESCRIPTION

[0023] 图1是一个显示了用于说明本发明的发射机和接收机的简图。 [0023] FIG. 1 is a diagram showing a transmitter and a receiver for explaining the present invention.

[0024] 图2显示的是示范性的无线蜂窝系统。 [0024] FIG. 2 shows an exemplary wireless cellular system.

[0025] 图3显示的是用于说明本发明的并且噪声依赖于传输信号功率的实例。 [0025] Figure 3 shows for illustration of the invention and examples of noise depending on the transmission signal power.

[0026] 图4显示的是用于说明本发明的示范性噪声特征线实例,其中所述特征线显示的是接收功率与总噪声的关系。 [0026] FIG. 4 shows a view for explaining an exemplary noise characteristic line of the present invention, an example in which the characteristic line shows a relationship between the received power to the total noise. [0027] 图5显示的是与本发明的示范性实施例相对应的功率-频率关系的图示,其中描述了数据音调、非零导频音调以及零导频音调。 [0027] FIG. 5 shows a power exemplary embodiment corresponding to the embodiment of the present invention - illustrating the relationship between the frequency, which describes the data tones, pilot tones and zero non-zero pilot tones.

[0028] 图6是对SNRl与SNRO在三种情况中的关系进行描述的图示,其中SNRl是由无线终端接收并且包含了信号相关噪声和信号无关噪声的SNR,SNRO则是由无线终端接受并且不包含信号相关噪声的SNR,所述的三种情况分别是:噪声与信号无关,与信号相关的噪声等于信号,以及与信号相关的噪声小于信号。 [0028] FIG. 6 is a diagram illustrating the relationship of SNRl SNRO with three cases will be described, wherein SNRl is received by the wireless terminal and the SNR signal contains noise and signal independent noise correlation, and SNRO is received by the wireless terminal SNR signal and correlated noise is not included, the three cases are: a signal independent of the noise associated with the signal is equal to signal noise, and signal-dependent noise is less than the signal.

[0029] 图7显示的是用于本发明的三扇区OFDM实施例的示范性信令,并且其中描述的是依照本发明的非零导频音调、扇区零导频音调以及小区零导频音调。 [0029] FIG. 7 shows an exemplary OFDM signaling is used for a three sector embodiment of the present invention, and which is described in accordance with the present invention, the non-zero pilot tones, sector null pilot tones, and cell null pilot tones.

[0030] 图8描述的是依照本发明的非零导频的音调跳变、扇区零导频以及小区零导频的实例。 [0030] Figure 8 depicts the hopping conduction in accordance with the present invention, the non-zero pilot tones, sector null pilot and cell null pilot examples.

[0031] 图9依照本发明的扇区边界信息方面而对用于说明本发明的三扇区实施例中的示范性无线终端的三种情形进行了描述。 [0031] FIG. 9 in accordance with sector boundary information aspect of the present invention and for explaining the three situations exemplary embodiment of a three-sector wireless terminal embodiment of the present invention have been described.

[0032] 图10描述的是依照本发明并使用了三扇区类型的方案,其中为每一种情况都重复使用了三种扇区类型,并且小区包含了三个以上的扇区。 [0032] FIG. 10 is in accordance with the present invention and using a three-sector type of scheme described, which is repeated each case using three sector type, and the cell contains three or more sectors.

[0033] 图11描述的是用于实施本发明的示范性通信系统。 [0033] FIG. 11 is described with an exemplary embodiment of a communication system used in the present invention.

[0034] 图12描述的是依照本发明实施的示范性基站。 [0034] FIG. 12 is described with the base station according to an exemplary embodiment of the present invention.

[0035] 图13描述的是依照本发明实施的示范性无线终端。 [0035] FIG. 13 is an exemplary wireless terminal in accordance with the embodiment of the present invention is described.

[0036] 图14描述的是在小区的多个扇区中依照本发明并以同步方式来发射导频音调的步骤。 [0036] Figure 14 depicts the steps in a plurality of sectors of a cell in accordance with the present invention is a synchronized manner to transmit pilot tones.

[0037] 图15〜17描述的是依照本发明而将导频音调与导频信号传输功率信息一起传输的示范性传输过程。 [0037] FIG. 15~17 according to the invention is a pilot tone and an exemplary transmission and transmission power information signal transmitted with the pilot described.

[0038] 图18描述的是一个图表,其中显示的是依照本发明而在单个码元传输周期以及十个不同音调上执行的信号传输。 [0038] FIG. 18 is a description diagram showing the signal transmission is performed on a single symbol transmission period, and ten different tones in accordance with the present invention.

[0039] 图19是对实施本发明的方法的示范性无线终端操作进行描述的流程图。 [0039] FIG. 19 is a flowchart of an exemplary wireless terminal embodiment of the method of the present invention will be described with operations.

[0040] 图20是对实施本发明的方法的示范性基站操作进行描述的流程图。 [0040] FIG. 20 is a flowchart illustrating an exemplary method of operation of the base station of the present invention will be described.

具体实施方式 Detailed ways

[0041] 本发明的方法和设备非常适合在使用了一个或多个多扇区小区的无线通信系统中使用。 [0041] The method and apparatus of the present invention is very suitable for use in one or more using a multi-sector cell in a wireless communication system. 图11描述的是示范性系统1100,其中只显示了一个单独的小区1104,但是应该理解,该系统可以并且通常包含众多此类小区1104。 11 depicts the exemplary system 1100, which shows only a single cell 1104, it will be appreciated that the system may generally comprise a number of such cells and 1104. 每一个小区1104分成了数量为N的多个扇区,其中N是大于1的正整数。 Each cell 1104 is divided into a plurality of sectors for the number N, where N is a positive integer greater than 1. 并且系统1100描述了这样一种情况,其中每一个小区1104细分为三个扇区:即第一扇区SO 1106、第二扇区Sl 1108以及第三扇区S2 1110。 And the system 1100 is described a case in which each cell 1104 is subdivided into three sectors: the first sector SO 1106, a second sector, and a third sector Sl 1108 S2 1110. 小区1104包含了S0/S1扇区边界1150、S1/S2扇区边界1152以及S2/S0扇区边界1154。 Cell 1104 contains the S0 / S1 sector boundary 1150, S1 / S2 and the sector boundary 1152 S2 / S0 sector boundaries 1154. 对扇区边界来说,在所述边界上可以使用几乎相同的电平来接收源于多个扇区、例如相邻扇区的信号,由此接收机很难对来自所在扇区的传输以及来自相邻扇区的传输加以区分。 The sector boundary, the boundary can be used on almost the same level to receive, for example, signals from a plurality of sectors neighboring sectors, whereby the receiver is difficult from the sector in which the transmission and transmissions from adjacent sectors to be distinguished. 在小区1104,多个端节点(EN)将会与基站(BQ 1102进行通信,其中所述端节点可以是移动节点这种无线终端(WT)。此外还有可能出现具有两个扇区(N =幻以及三个以上扇区(N> 3)的小区。在扇区SO 1106中,多个端节点EN(I) 1116,EN(X) 1118分别经由无线链路1117、 1119耦合到基站1 1102。在扇区Sl 1108中,多个端节点EN(1' )1120,EN(X' )1122分别经由无线链路1121、1123耦合到基站1 1102。在扇区S2 1110,多个端节点EN(1 “ )1124, EN(X" )11¾分别经由无线链路1125、1127耦合到基站1 1102。依照本发明,基站1102使用多个功率电平将导频信号发射到EN1116、1118、1120、1122、11M、1126,并且在三个扇区之间将会对具有不同的预定和已知电平的导频信号传输进行同步。依照本发明,EN(I) 1116 这类端节点会向基站1102报告反馈信息,例如信道质量指示值,由此使得基站1102能够确定无线终端接收的SNR,其 1104, a plurality of end nodes (EN) will (BQ 1102 for communicating with a base station in a cell, wherein said end node may be a wireless terminal such a mobile node (WT). There are also possible with two sectors (N = magic and three more sectors (N> 3) cells in sector SO 1106, a plurality of end nodes EN (I) 1116, EN (X) 1118 respectively 1117, 1119 coupled to base station 1 via a radio link Sl 1108 in 1102. in the sector, a plurality of end nodes EN (1 ') 1120, EN (X') 1122 coupled to the sector S2 1110, the base station 1 1102. plurality of end nodes via wireless links 1121,1123 EN (1 ") 1124, EN (X") 11¾ via wireless links 1125,1127, respectively coupled to base station 1 1102. according to the present invention, the base station 1102 using a plurality of power level of the pilot signal transmitted to EN1116,1118,1120 , 1122,11M, 1126, and the pilot signal will be transmitted to the guide has a different predetermined and known level synchronization between the three sectors. in accordance with the present invention, EN (I) 1116 to the node such ends base station 1102 reports feedback information such as channel quality indicator value, thereby making it possible to determine the radio base station 1102 received by the terminal the SNR, which 中所述SNR是基站发射信号功率的函数。基站1102经由网络链路1114耦合到网络节点1112。网络节点1112则经由网络链路11¾耦合到其他网络节点, 例如中间节点、其他基站、AAA节点、原籍代理节点等等以及因特网。网络节点1112还提供了连至小区1104外部的接口,由此允许在小区1104内部的EN与小区1104外部的对等节点进行通信。小区1104内部的EN可以在小区1104的扇区1106、1108、1110的内部移动, 也可以移动到与另一个基站相对应的另一个小区。此外,举例来说,网络链路1114和11¾ 还可以是光纤电缆。 SNR is a function of said transmit signal power of the base station. The base station 1102 is coupled via network links 1114 to the network node 1112. The network node 1112 coupled to other network nodes via network link 11¾, such as an intermediate node, the other base stations, AAA nodes, home agent nodes, etc. and the Internet. the network node 1112 also provides an interface 1104 connected to the outside of the cell, thereby allowing communication with the interior of the cell 1104 EN 1104 cells outside peer node. interior of the cell may be a cell EN 1104 1106,1108,1110 1104 inside the mobile sector, and can also be moved to another cell base station corresponding to the other. further, for example, network link 1114 and 11¾ also be fiber optic cables.

[0042] 图12描述的是依照本发明实施的示范性基站(BS) 1200。 [0042] FIG. 12 is a base station according to an exemplary embodiment of the present invention (BS) 1200 described above. 基站1200是图11的示范性通信系统1100中显示的基站1102的更详细表示。 The base station is a base station 1200 shown in exemplary communication system 1100 of FIG. 11 is a more detailed representation 1102. 基站1200包含了分别与接收机1202 以及发射机1204相耦合的扇形天线1203、1205。 Sector base station 1200 includes antennas 1204 and a receiver 1202 and a transmitter coupled to 1203,1205. 接收机1202包括解码器1212,而发射机1204则包括编码器1214。 Receiver 1202 includes a decoder 1212 while the transmitter 1204 includes an encoder 1214. 此外,基站1200还包括I/O接口1208、CPU之类的处理器1206、 以及存储器1210。 In addition, the base station 1200 also includes I / O interface 1208, CPU 1206 with the processor, and a memory 1210. 并且发射机1204被用于经由扇形发射天线1205并以同步方式将导频信号发射到多个扇区。 And a transmitter sector 1204 is used to transmit antenna 1205 via a synchronized manner, and a pilot signal transmitted to the plurality of sectors. 接收机1202、发射机1204、处理器1206、I/O接口1208以及存储器1210经由总线1209耦合在一起,其中不同部件可以在所述总线上交换数据和信息。 Receiver 1202, a transmitter 1204, a processor 1206, I / O interfaces 1208 and a memory 1210 coupled together via a bus 1209, where the different components may be exchanged over the data bus and information. 而I/O 接口1208则将基站1200耦合到因特网以及其他网络节点。 And I / O interface 1208 base station 1200 will be coupled to the Internet and other network nodes.

[0043] 存储器1210包括程序1218以及数据/信息1220。 [0043] The memory 1210 includes a program 1218 and data / information 1220. 在由处理器1206执行的时候, 程序1218使基站1200依照本发明来执行操作。 When executed by a processor 1206, the program 1218 causes the base station 1200 to operate in accordance with the present invention. 程序1218包括通信程序1222、接收信号处理程序1260以及基站控制程序12M。 Program 1218 include communications routines 1222, 1260 and received base station signal processing program control procedures 12M. 接收信号处理程序1260包含了用于从WT的报告消息这类接收信号中提取信道质量指示值的信道质量指示值提取模块1沈2,以及用于从接收消息中提取WT位置信息的位置信息提取模块1264。 Reception signal processing program 1260 includes a channel quality indication for extracting a channel quality indicator values ​​from such a reception signal WT report message value extraction module in a sink 2, and a position for extracting the location information from the WT received message information extraction module 1264. 在某些实施例中、位置信息指示的是WT相对于扇区边界的位置。 In certain embodiments, the location information indicates that the WT relative to the sector boundary position. SNR或功率值这类被提取的信道质量指示值则提供给传输功率计算程序1226,以便在为传送到WT的信号计算传输功率的过程中加以使用。 SNR or power value such extracted channel quality indicator values ​​are supplied to the transmission power calculation program 1226 in order to be used to transmit the process of calculating the transmission power of a signal WT. 基站控制程序12M包括调度模块1225、传输功率计算程序12¾以及信令程序12¾,其中所述信令程序12¾包含了导频信号产生和传输控制程序。 The base station control routine 1225 includes a scheduling module 12M, and the transmission power calculating program 12¾ 12¾ signaling procedure, wherein the signaling procedure comprising 12¾ pilot signal generation and transmission control procedure.

[0044] 数据/信息1220包括数据1232、导频跳变序列信息1234以及无线终端数据/信息1240。 [0044] Data / information 1220 includes data 1232, the pilot hopping sequence information 1234, and wireless terminal data / information 1240. 数据1232可以包括来自接收机解码器1212的数据,即将发送到发射机编码器1214 的数据、中间处理步骤的结果等等。 Data 1232 may include data from the receiver decoder 1212, to be sent to the transmitter data encoder 1214, an intermediate step of the processing result and the like. 导频跳变序列信息1234则包括功率电平信息1236以及音调信息1238。 The pilot hopping sequence information 1234 includes power level information 1236 and tone information 1238. 依照本发明,功率电平信息在导频音调跳变序列内部定义了不同的功率电平,并且这些功率电平将被应用于不同的音调,以便产生不同强度的导频。 According to the present invention, the power level information of the pilot tone hopping sequence is defined inside a different power level, and the power level to be applied to different tones in order to generate different pilot strength. 其中举例来说, 在传输之前,这些导频值将被设定成预选的固定值,而BS1200以及BS1200所服务的小区内部的WT都是知道这些导频值的。 For example, where, prior to transmission, these pilots is set to a fixed value to a preselected value, and the BS 1200 and the interior of the cell is served by WT BS1200 know pilot values. 在与各个终端ID1246相对应的各个扇区的导频音调跳变序列内部,音调信息1238包含了用于规定以下内容的信息,这些内容包括:将哪些音调用作特定强度等级的导频音调,哪些音调是扇区零音调以及哪些音调应该是小区零音调。 In the guide and the respective terminal ID1246 corresponding to the respective sectors of the internal pilot tone hopping sequence, tone information 1238 includes information for specifying the content, the content comprising: a guide which tones as a pilot tone specific intensity level, What is the tone and pitch of zero sectors which tones should be the cell null tones. 无线终端数据/信息1240包含了与工作在小区内部的每一个无线终端相对应的数据信息集合,即WTl的信息1242、WT N的信息1254.对每一个信息集合、例如WTl的信息1242来说, 该信息集包含了数据1对4、终端ID1M6、扇区ID1M8、信道质量指示值1250以及扇区边界位置信息1252。 Wireless terminal data / information 1240 contains information about each of the working set of data within a wireless terminal corresponding to the cell, i.e. WTL information 1242, WT N information 1254. Each set of information, such as information for the 1242 WTl this data set contains information one pair 4, the terminal ID1M6, sector ID1M8, channel quality indicator values ​​1250 and sector boundary position information 1252. 数据1244则包含了从WTl接收的用户数据以及将被发送到与WTl进行通信的对等节点的用户数据。 Data 1244 contains the data received from the user and WTL to be transmitted to a peer node user data communication with WTl. 终端ID1246是由基站分配的标识,并且在这里将该标识分配给了WTl ;此外,与每一个特定终端ID1246相对应的基站将会产生特定的导频音调跳变序列, 该序列包含了处于不同时间并且具有不同强度的导频信号。 ID1246 terminal identifier assigned by the base station, and where the identifier assigned to the WTL; In addition, each specific terminal ID1246 corresponding base station will have a specific pilot tone hopping sequence which includes at different and the time derivative of pilot signals with different intensities.

[0045] 扇区ID1248对WTl在三个扇区S0、S1、S2中的哪一个扇区工作进行识别。 [0045] which sector to sector ID1248 WTl working in three sectors S0, S1, S2 are identified. 信道质量指示值1250包含了WTl通过信道质量报告消息传送给基站的信息,基站可以使用这个消息来计算作为基站传输信号功率函数而在WTl上接收的预期SNR等级。 Channel quality indicator value WTl 1250 includes information message to the base station, the base station can use this message to calculate the expected SNR levels as a function of the base station transmission power signal received on the channel quality reports WTl. 依照本发明,信道质量指示值1250是由WTl从其对基站发射的不同强度的导频信号所进行的测量中导出的。 According to the present invention, a channel quality indicator values ​​1250 are derived from the measurement pilot WTl from different loads on the base station transmitted pilot signals carried in. 而扇区边界位置信息1252则包括:用于识别WTl是否检测到其接近某个扇区边界并且由此遭遇很高干扰电平的信息,以及用于识别所接近的是哪一个扇区边界WTl的信息。 And the sector boundary position information 1252 includes: means for identifying whether the detected WTl which is close to a sector boundary and thus encounter high interference level information, and for identifying the closest of which is a sector boundary WTl Information. 该信息是从WTl发射并由BS接收的位置反馈信息中获取和推导的。 This information is transmitted from the information acquired by WTl and deduced BS receives position feedback. 信道质量指示值1250以及扇区边界位置信息1252表示的是从WTl到基站1200的信道质量反馈信息,由此提供了关于基站1200与WTl之间的一条或多条下行链路信道的信息。 A channel quality indicator values ​​1250 and the feedback information is channel quality from the base station to WTl 1200 to 1252 represents a sector boundary position information, thereby providing information about one or more base stations 1200 and between the WTl downlink channel.

[0046] 通信程序1222用于控制基站1200,以便执行不同的通信操作并且实现不同的通信协议。 [0046] The communication program 1222 for controlling the base station 1200 to perform various communications operations and implement various communications protocols. 基站控制程序12M用于控制基站1200,以便执行基本的基站功能,例如产生和接收信号、调度以及实施本发明的方法步骤,这其中包括以不同的传输强度等级来产生导频信号以及接收、处理和使用无线终端报告的信息。 12M Base station control routines 1200 for controlling the base station, the base station to perform basic functions, such as signal generation and reception, scheduling, and method steps of the embodiment of the present invention, which includes a different transmit power levels used to generate the pilot signal reception and processing and using a wireless terminal report. 信令程序12¾对用于产生和检测往返于无线终端的信号的发射机1204和接收机1204进行控制,其中所述信号可以是依照数据音调跳变序列的OFDM信号。 12¾ signaling procedures for producing and testing of a transmitter 1204 and a receiver 1204 to and from the wireless terminal of the control signals, wherein the signal sequence may be a hopping OFDM signal in accordance with data tones. 导频信号产生和传输控制程序使用包含了导频跳变序列信息1234的数据/信息1220来为各个扇区产生特定的导频音调跳变序列。 Generating and transmitting a pilot signal containing the control program pilot hopping sequence information 1234 data / information 1220 to generate a specific pilot tone hopping sequence to each sector. 借助于导频信号产生和传输控制程序1230的指引,可以对功率电平信息1236中包含的导频音调功率电平以及为在特定时间接收各个扇区中的各个导频的特定导频音调而选择的特定音调进行协调和控制。 Guide means of specific on the index signal generation and transmission control routine 1230 frequency, pilot tone power level can be turned on the power level information 1236 included in the respective receive and guide each sector at a particular time and frequency tones select the specific tone of coordination and control. 如图15〜17所示,程序1230对导频音调传输进行控制。 As shown in FIG. 15~17, 1230 pairs of pilot tones program transmission control. 诸如软件命令这类负责传输不同导频音调的专用处理指令可以是单独的组件或模块,在这里可以将这些组件和模块解释成是独立的装置,这些装置通过协作来控制基站、以便发射图15〜17中描述和显示的导频音调序列。 Such commands such as software responsible for different transmission pilot tones dedicated processing instructions may be separate components or modules, where the components and modules may be interpreted as an independent device, the base station is controlled by these means cooperate to transmit 15 ~ 17 guide described and illustrated in the sequence of tones. 例如,在控制传输功率的同时,通过在传输频率和/或码元传输时间这些方面对小区扇区之间不同类型的导频信号传输进行协调和/或同步,可以使无线终端接收到不同电平的发射导频音调,例如已知和预定的固定电平的导频音调、扇区零导频音调以及小区零导频音调,由此可以通过计算之类的操作来从被测信号值中获取信道质量指示值1250。 For example, while controlling transmission power, transmission frequency by / or coordination / synchronization, the wireless terminal can receive different power and different types of these aspects of the pilot signal transmission between cells in the sector and pilot symbol transmission time or level transmit pilot tones, such as known and predetermined fixed level pilot tones, sector null pilot tones, and cell null pilot tones, whereby the signal may be measured from the value calculated by the operation or the like obtaining channel quality indicator values ​​1250. 依照本发明,常规(非零)导频音调、扇区零导频音调以及小区零导频音调都可以对通常发射的数据音调进行凿孔或者取代所述数据音调。 According to the present invention, a conventional (non-zero) pilot tones, sector null pilot tones, and cell null pilot tones can be punctured data tones normally transmitted data tones or substituted. 调度模块1225用于控制传输调度和/或通信资源分配。 A scheduling module 1225 used to control transmission scheduling and / or communication resource allocation. 依照本发明,在这里可以为调度器1225提供用于指示各个无线终端接收的SNR的信息,其中所述SNR是基站发射信号功率的函数。 According to the present invention, herein may provide information indicative of the SNR for each radio terminal received by the scheduler 1225, where the SNR is a function of the base station transmitted signal power. 调度器可以使用这种从信道质量指示值1250中导出的信息来为WT分配信道分段。 The scheduler can use this information derived from the channel quality indicator values ​​1250 are assigned to the channel segment to WT. 这样则允许BS1200分配具有足量传输功率的信道分段,以便满足提供给WT的特定数据率、编码方案和/或选定调制方案对于接收SNR的需要。 Such allocation allows BS1200 transmission power with a sufficient amount of channel segments, in order to meet a specific data rate supplied to the WT, coding scheme and / or modulation scheme selected for the required received SNR.

[0047] 图13描述的是依照本发明实施的示范性无线终端1300。 [0047] FIG. 13 is an exemplary wireless terminal 1300 in accordance with embodiments of the present invention is described. 无线终端1300可以用作无线端节点,例如移动节点。 The wireless terminal may be used as a wireless end node 1300, e.g., mobile node. 所述无线终端1300即为图11的示范性通信系统1100中显示的EN1114、1116、1118、1120、1122、1124的更详细表示。 The wireless terminal 1300 is the exemplary communication system 1100 of FIG. 11 is shown a more detailed representation of EN1114,1116,1118,1120,1122,1124. 该无线终端1300包含了接收机1302、发射机1304、诸如CPU之类的处理器1306以及存储器1308,这些部件通过总线1310 耦合在一起,并且这些组件可以在总线上交换数据和信息。 The wireless terminal 1300 includes a receiver 1302, a transmitter 1304, a processor such as a CPU 1306 and a memory 1308 coupled with the bus 1310 by these members together, and these components can exchange data and information on the bus. 无线终端1300包括分别与接收机和发射机1302、1304相耦合的接收机和发射机天线1303、1305。 The wireless terminal 1300 includes receiver and transmitter antennas 1303, 1305, 1302, 1304, respectively receiver and transmitter coupled. 接收机1302包括解码器1312,发射机1304则包括编码器1314。 Receiver 1302 includes a decoder 1312, a transmitter 1304 includes an encoder 1314. 处理器1306由存储器1308中存储的一个或多个程序1320进行控制,以使无线终端1300依照这里描述的发明方法来执行操作。 The processor 1306 is controlled by a memory storing a plurality of programs 1320 or 1308, so that the radio terminal 1300 in accordance with the method of the invention to perform the operations described herein. 存储器1320 中包含了程序1320以及数据/信息1322。 The memory 1320 contains the program 1320 and data / information 1322. 程序1320包括通信程序13M以及无线终端控制程序13沈。 13M include communications routines 1320 and wireless terminal control program 13 sink. 无线终端控制程序13¾包括信令程序13¾,其中所述信令程序13¾包括导频信号测量模块1330、信道质量指示值产生模块1332、扇区边界位置确定模块1331以及信道质量指示值传输控制模块1333。 Wireless terminal control routines 13¾ 13¾ procedures include signaling, wherein the signaling includes a pilot program 13¾ signal measurement module 1330, a channel quality indicator value generating module 1332, a sector boundary position determining module 1331 and a channel quality indicator value transmission control module 1333 . 数据/信息1322包括用户数据1334、用户信息1336、 以及导频信令信息1350,其中所述用户数据1334可以是即将从无线终端1300发射到对等节点的信息。 Data / information 1322 includes 1334, user information 1336, and user data information of pilot signaling information 1350, wherein the user data 1334 may be transmitted from the wireless terminal 1300 is about to peer node. 用户信息1336包括被测信号值信息1337、质量指示值信息1338、扇区边界位置信息1340、终端ID信息1342、基站ID信息以及信道报告信息1346。 User information 1336 includes measured signal value information 1337, quality indicator value information 1338, sector boundary position information 1340, terminal ID information 1342, base station ID information and channel report information 1346. 导频信令信息1350 包括跳变序列信息1352、功率电平信息13M以及音调信息1356。 Signaling information 1350 includes pilot hopping sequence information 1352, power level information and tone information 1356 13M. 被测信号值信息1337包括被测信号值,其中所述被测信号值是在导频信号测量模块1330的控制下,通过测量接收导频信号的幅度和相位中的至少一项而被获取的。 The measured signal value information 1337 includes measured signal values, wherein the measured signal value is under the control of a pilot signal measurement module 1330, and the at least one received pilot signal is acquired by measuring the amplitude and phase of the . 质量指示值信息1338包含了信道质量指示值产生模块1332的输出。 Quality indicator value information 1338 includes channel quality indicator value generating module 1332 output. 在将信道质量指示值信息1338传送到基站的时候,该信息允许基站确定作为传输信号功率函数并由WT接收的SNR。 When the channel quality indicator value to the base station 1338 transmits information, which information allows the base station to determine a transmission signal power as a function of the received WT by SNR. 扇区边界位置信息1340则包括用于识别无线终端处于某个扇区边界区域的信息,其中举例来说,该信息可以是表明无线终端遭遇到很高的扇区间干扰电平的信息,此外,所述扇区边界位置信息1340还包括用于识别这两个相邻扇区中的哪一个扇区是边界区域扇区的信息。 Sector boundary position information 1340 includes information for identifying the wireless terminal in a sector boundary region, where for example, the information may indicate the wireless terminal encounters high inter-sector interference information level, in addition, the sector boundary position information 1340 further includes a sector which is used to identify the two adjacent sectors in the information area of ​​the sector boundary. 基站可以使用扇区边界信息来识别相邻扇区中应该停止传输功率以减小扇区间干扰的信道。 The base station may use the sector boundary information to a sector identified channel the transmission power should be stopped to reduce interference between adjacent sectors. 信道报告信息1346包含了所获取的质量信道指示值1338或是一部分信道质量指示值1338,此外还可以包括扇区边界位置信息1340。 Channel report information 1346 includes channel quality indicator value 1338 or a part of a channel quality indicator values ​​1338 acquired in addition it may also include sector boundary position information 1340. 信道报告信息1346可以用对应于各个质量指示值的相应消息来构造, 也可以用单个消息中包含的质量指示值群组来构造。 Channel report information 1346 may be configured with the appropriate message corresponding to each quality indicator value may be a value indicating the quality of the group is constructed with a single message included. 并且这些消息是在预定时间以及专用信道上周期性送出的。 And these messages are the dedicated channel at a predetermined time and sent periodically. 当无线终端1300在基站的蜂窝覆盖区域内部工作时,终端ID信息1342表示的是由基站分配并且应用于无线终端1300的信息。 When the radio terminal 1300 operate in the cellular coverage area of ​​an internal base station, terminal ID information 1342 indicates the allocation information is applied by the base station and the wireless terminal 1300. 基站ID信息1344包含了基站相关信息,例如跳变序列的斜率值,此外,所述基站ID信息还可以包括扇区标识信息。 The base station ID information 1344 includes base station-related information, e.g. hopping sequence slope value, in addition, the base station sector ID information may further comprise identification information.

[0048] 导频跳变序列信息1352为具有基站ID信息1344的指定基站识别应该在何时测量哪一个音调1356,以便评估导频信号,其中所述音调可以是OFDM码元时间。 [0048] The pilot hopping sequence information 1352 identifying a specified base station ID information 1344 which should be measured when a tone 1356 in order to assess the pilot signal, wherein the tones may be OFDM symbol time. 导频信号功率电平信息13M则将导频音调跳变序列1352中包含的已分配导频信号音调1356上的导频信号传输电平识别给无线终端。 Pilot signal power level information will 13M pilot tone hopping sequence 1352 contains pilot assigned to the radio terminal identification signal transmission level of the pilot signal on the pilot tones 1356. 此外,导频信号功率电平信息13M还可以识别扇区和小区零导频音调。 Further, the pilot signal power level may also be information identifying the sector and 13M cell null pilot tones.

[0049] 通信程序13M用于控制无线终端1300,以便执行不同的通信操作并且实施不同的通信协议。 [0049] 13M communication program for controlling the wireless terminal 1300 to perform various communications operations and implement various communications protocols.

[0050] 无线终端控制程序13¾依照本发明的方法来控制无线终端1300的基本功能。 [0050] Wireless terminal control routines 13¾ method according to the present invention to control the basic functions of the wireless terminal 1300. 无线终端信令程序13¾对无线终端信令的基本功能进行控制,其中包括控制接收机1302、 发射机1304以及信号的产生和接收,此外,无线终端信令程序还依照本发明的方法来控制无线终端的操作,这些操作包括:测量导频信号、产生质量指示值以及传输信道质量指示值。 The wireless terminal signaling procedure 13¾ controls the basic functions of the wireless terminal signaling, including the control of the receiver 1302, a transmitter 1304 to generate and receive signals, and, in addition, the wireless terminal program further controls the wireless signaling method according to the present invention operation of the terminal, the operations comprising: measuring a pilot signal quality indicator values ​​and generates a transmission channel quality indicator value. 导频信号测量模块1330对接收导频信号的测量进行控制,其中该信号是用基站ID信息1344、跳变序列信息1352以及音调信息1356标识的。 Measuring received pilot signal measurement module 1330 signals the pilot control, wherein the signal is a base station ID information 1344, hopping sequence information 1352 and tone information 1356 identified. 此外,导频信号测量程序1330还测量导频信号幅度和相位中的至少一项,以便产生与所测量的各个导频信号相对应的被测信号值。 Further, the pilot signal measurement program 1330 also measures the pilot signal of at least one amplitude and phase, so as to guide the respective measured signal value with the measured signal corresponding to the pilot. 信道质量指示值产生模块1332包括功率估计模块1361以及SNR估计模块1362。 Channel quality indicator value generating module 1332 includes a power estimation module 1361, and SNR estimation module 1362. 所述信道质量指示值产生模块1332依照使用了导频信号测量模块1330输出的被测信号值1337的函数来产生质量指示值。 The channel quality indicator value generating module 1332 in accordance with the use of the measured value of the pilot signal measurement module 1330 is a function of the output signal 1337 to generate quality indicator values. 此外,该模块1332还包括第一和第二指令集合,以便实现第一和第二信道质量指示值函数,其中第一函数不同于第二函数。 In addition, the module 1332 further comprises a first and a second set of instructions, in order to achieve the first and second channel quality indicator value function, wherein the second function is different from the first function. 功率估计模块1361包含了软件指令,该软件指令对处理器1306进行控制,以便估计一个或多个接收导频信号的接收功率。 Power estimation module 1361 includes software instructions, software instructions to processor 1306 which controls, in order to estimate the one or more received pilot signal received power. SNR估计模块1362同样包括软件指令,并且该指令对处理器1306进行控制,以便估计一个或多个接收导频信号的信噪比。 Similarly SNR estimation module 1362 includes software instructions, and the instruction controls the processor 1306 to estimate the one or more received pilot signal to noise ratio. 扇区边界位置确定模块1331从接收信号中包含的信息确定无线终端1300相对于扇区边界的位置。 Sector boundary position determining module 1331 contains information from the received signal, determining the position of the wireless terminal 1300 relative to a sector boundary. 并且所述扇区边界位置确定模块1331 还可以辨别出无线终端更接近哪一个相邻扇区边界以及哪一个相邻扇区会对WT1300产生更大的干扰电平。 And the sector boundary position determining module 1331 may also identify the wireless terminal which is closer to a neighbor sector boundary and which have a neighboring sector WT1300 greater interference level. 此外,扇区边界位置确定模块1131输出的信息将会包含在扇区边界位置信息1340中。 In addition, sector boundary position information determination module 1131 will be included in the output of the sector boundary position information 1340. 信道质量指示值传输控制程序1333对向基站传送质量信道指示值信息以及扇区边界信息的操作进行控制。 A channel quality indicator value transmission control routine 1333 pairs of channel information and an operation instruction value sector boundary information to the base station transmission quality control. 所述信道质量指示值传输控制程序1333包括消息生成模块1335。 The channel quality indicator value transmission control routine 1333 includes a message generating module 1335. 并且所述消息生成模块1335使用机器可执行指令来控制处理器1306,以便产生用于传递信道质量指示值的消息。 And the message generating module 1335 using machine executable instructions to control the processor 1306 to generate a message for transmitting channel quality indicator values. 此外,消息生成模块1335还可以产生具有单一信道质量指示值的消息,或者把至少两个信道质量指示值包含在单个消息中。 Further, message generating module 1335 may also generate a message with a single channel quality indicator value, or the at least two channel quality indicator value contained in a single message. 另外,消息生成模块1335 还可以产生包含位置信息的消息,例如扇区边界位置信息1340,并且该模块可以将所述信息合并到一个包含了信道质量指示值的消息中。 Further, message generating module 1335 may generate a further message containing the location information, for example, sector boundary position information 1340, and the module may be incorporated into the information comprises a channel quality indicator value message. 消息生成模块1335产生的消息是在信道质量指示值传输控制1333的控制下发射的。 Message generated by message generating module 1335 is a channel quality indicator value transmission control 1333 under control of the transmission. 在这里可以对那些与第一和第二个值相对应的消息进行交织,例如轮流更替所述消息,以便进行传输。 Where those messages can be interleaved with the first and second value corresponding to, e.g. alternated the message for transmission. 在某些实施例中,信道质量传输控制模块1333周期性地使用传送信道质量指示值专用的通信信道分段来发射消息。 In certain embodiments, the channel quality transmission control module 1333 used periodically transmitting channel quality indicator value segment dedicated communication channel to transmit the message. 此外, 该模块1333还可以控制传输时间,以使该时间与基站提供并由WT1300使用的预选专用时隙相一致,由此阻止其他无线终端使用这个专用时隙。 In addition, the module 1333 may also control transmission time, so that the base station provides a preselected time slot dedicated for use by WT1300 coincide, thereby preventing the use of other wireless terminals dedicated time slots.

[0051] 图1是一个显示了用于对本发明进行描述的发射机101和接收机103的简图。 [0051] FIG. 1 is a diagram showing a transmitter 101 and receiver 103 used in the present invention will be described. 举例来说,发射机101可以是基站1200的发射机1204,接收机103可以是无线终端1300的接收机1302。 For example, transmitter 101 may be a base station transmitter 1200 to 1204, receiver 103 may be a wireless terminal receiver to 13,021,300. 以系统100为例,在这个通信系统中,发射机101经常需要选择恰当方法来向接收机103发射数据。 In system 100 as an example, in this communication system, a transmitter 101 is often necessary to select the appropriate method for transmitting data to the receiver 103. 这些选择包括:纠错码的编码速率,调制星座模式图,以及发射功率电平。 These options include: error correction code coding rate, modulation constellation schematic view, and the transmit power level. 一般来说,对发射机101而言,为了做出明智的选择,较为理想的是了解从发射机101到接收机103的通信信道。 In general, for the transmitter 101, in order to make informed choices, it is desirable to understand the communication channel from transmitter 101 to the receiver 103. 在图1显示的示范性系统100中,发射机101在前向链路105上向接收机103发送数据业务102。 In the exemplary system shown in FIG. 1100, transmitter 101 over forward link 105 transmits data 102 to the receiver 103 to the service. 接收机103则在从接收机103到发射机101的反向链路107上将前向链路信道状态106报告给发射机101。 It is reported to the receiver 103 transmitter 101 in reverse link 107 from the receiver 103 on a forward link transmitter 101 to the channel state 106. 然后,发射机101使用所报告的信道状态信息106来恰当设定参数,以便执行传输。 Then, the transmitter 101 uses the reported channel state information 106 to properly set the parameters for transmission is performed.

[0052] 图2显示的是示范性的无线蜂窝系统200,在这个系统中,发射机包含在具有天线205的基站(BS) 201中,接收机包含在具有天线207的无线终端(WT) 203中,这样一来,基站201可以在一条或多条下行链路信道208上将信息传递到无线终端203,其中所述无线终端可以是移动终端,也可以是固定终端。 [0052] FIG. 2 shows an exemplary wireless cellular system 200, in this system, a transmitter in a base station (BS) 201 having an antenna 205, a wireless receiver comprises an antenna 207 having a terminal (WT) 203 in this way, the base station 201 may be a downlink transmission on link channel information 208 to the wireless terminal 203 in one or more, wherein the wireless terminal may be a mobile terminal, may be a fixed terminal. BS201经常会发射导频信号209,该信号通常是在一小部分传输资源上发射的,并且该信号通常包含了使用恒定功率发射的已知(预定)码元。 BS201 often transmit a pilot signal 209, which signal is typically transmitted on a small portion of the transmission resource, and the signal typically comprises a known (predetermined) symbols using a constant power transmitted. WT 203根据接收到的导频信号209来测量下行链路信道状态213,并且通过上行链路信道215将信道状态213报告给BS201。 WT 203 in accordance with the frequency of the received pilot signal 209 for measuring downlink channel state 213, 215 and channel state report to BS201 213 through an uplink channel. 应该指出的是,信道状态213常常会因为衰减和多普勒效应而随时间发生变化,因此,较为理想的是,BS 201频繁乃至连续地发射导频209,这样一来,在信道状态213随时间变化时,WT 203可以追踪和报告信道状态213。 It should be noted that the channel state 213 frequently vary because fading and Doppler effect over time, and therefore, it is preferable that, BS 201 frequently or even continuously transmits pilot 209, so that, in the channel state 213 with when time, WT 203 can track and report channel state 213. 并且WT 203可以根据接收信号强度以及导频信号209上的噪声和干扰来估计下行链路信道状态213。 And WT 203 may noise and interference on the received signal strength of the pilot signal 209 and estimates the downlink channel state 213. 在下文中将会把噪声与干扰的组合称为“噪声/干扰”,有时则仅仅将其称为“噪声”。 Hereinafter the combination of noise and interference will be referred to as "noise / interference", sometimes simply referred to as "noise." 在现有技术中,这种信息通常是以信噪比(SNR)这种单一标量比形式或是等价量度形式报告的。 In the prior art, this information is usually ratio (SNR) ratio of the single standard form or in the form of a report metric equivalents. 如果噪声/干扰与传输信号无关,那么这个单一的标量量度通常就是用以在BS201上预测接收SNR如何随信号发射功率而变化所需要的全部信息。 If the noise / interference signal independent of the transmission, then a single scalar metric is typically received SNR for all available transmit power signal vary with the desired change in the predicted BS201. 在这种情况下,BS201可以从单独的接收值中为它所选择的用于发射的编码和调制方案确定正确的(最小的)发射功率。 In this case, BS201 may be selected from the individual for which it received value for the transmission coding and modulation schemes to determine the correct (lowest) transmission power. 然而不幸的是,对多扇区而言,传输信号产生的噪声有可能是一个很大的信号分量,由此将会导致单一的标量值不足以精确预测不同传输功率电平的SNR。 Unfortunately, multi-sector, the noise generated in a transmission signal there may be a large signal component, whereby a single scalar value will cause insufficient to accurately predict the different transmission power levels of SNR.

[0053] 在很多通信状况、尤其是本发明的多扇区系统1100这样的蜂窝无线系统中,噪声并不独立于信道发射功率,而是依赖于所述功率。 [0053] In many communication status, in particular cellular radio system is a multi-sector system 1100 of the present invention, the noise is not independent channel transmission power, but rather on the power. 在噪声中通常存在一个名为“自噪声”的分量,该分量与信号功率成比例或者大致成比例。 Components typically present a "self-noise" in the noise, the component of the signal power is proportional or substantially proportional. 图3显示了一个噪声依赖于信号发射功率的实例。 Figure 3 shows a noise signal dependent on the transmission power of example. 在图3中,图表300显示的是纵轴317上的相关接收信号功率与横轴303上的总噪声的关系。 In Figure 3, graph 300 shows the relationship between the total noise on the received signal power on the relevant longitudinal axis 317 and lateral axis 303. 其中总噪声是用直线305表示的,所述总噪声是与信号相关的部分309以及与信号无关的部分307的总和,并且在这里是相对接收信号功率317来绘制总噪声的。 Wherein the total noise is represented by a straight line 305, and the sum of the total noise associated with the signal portion 309 of signal-independent part 307, and here is the relative received signal power 317 to the total noise plotted. 自噪声的存在有多种理由。 Noise from the presence of a number of reasons. 其中一个自噪声实例是干扰接收信号的不均衡信号能量。 One example is noise from interfering unbalanced signal energy of the received signal. 该噪声与信号强度成比例。 This noise is proportional to the signal strength. 这个不均衡的信号能量有可能是因为信道估计误差或是均衡器系数误差造成,此外也有可能是因为其他原因而产生的。 This signal energy imbalance may be due to channel error or estimation error caused by the equalizer coefficients, in addition there may be generated for other reasons. 当自噪声能够与那些独立于信号的噪声相比或者大于这些噪声的时候,单一标量的下行链路SNR值(可以在导频上测得)不足以使BS1200正确预测出WT1300上作为信号发射功率函数的接收SNR。 When the white noise is insufficient to BS1200 can be independently compared to those when the noise signal or of the noise is greater than a single scalar value of downlink SNR (that can be measured on the pilot) as correctly predicted signal transmit power on WT1300 function of the received SNR.

[0054] 本发明提供了一种方法和设备,如果存在与信号相关的噪声309,那么所述方法和设备能使每一个WT1300预测其下行链路上作为信号发射功率函数的接收SNR,并且允许每一个WT1300将该信息传递到BS1200。 [0054] The present invention provides a method and apparatus, if the signal-dependent noise is present 309, the method and apparatus enables the received SNR as a function of signal transmit power on each of its downlink WT1300 prediction, and allows each WT1300 passes this information to BS1200. 这样则使得BS1200能够根据每一个WT所需要的相应SNR而以不同的(最小的)信号功率来对WT执行发射操作。 So that it is capable of different BS1200 (minimum) signal power according to a corresponding SNR for each WT to perform the desired operation on the transmitting WT. BS1200的总的发射功率通常是已知或固定的,但是分配给不同WT1300的比例则可以是不同的,并且所述比例可以随时间而改变。 BS1200 total transmit power is typically known or fixed but the proportion allocated to different WT1300 is may be different, and the ratio may change over time. 如图3所示,在WT接收机1302上,对于作为接收信号功率317的函数的总噪声303而言,其相关性可以用直线305模拟,并且在本申请中将该直线称为“噪声特征线”。 3, at the WT receiver 1302, for the received signal power as a function of the total noise 317 303, its correlation with the straight line 305 can be simulated, and the straight lines in the present application as "noise characteristic line". 由于噪声特征线305通常不会经过原点,因此单一的标量参数不足以表征这条直线305。 Since the noise characteristic line 305 generally does not pass through the origin, and therefore a single scalar parameter is not sufficient to characterize this line 305. 为了确定这条线305,至少需要例如两个信道质量指示值这样的两个参数。 In order to determine this line 305, at least two such parameters, for example, two channel quality indicator values. 有一种用于确定该直线的简单方法是确定所述直线上的两个相异点的位置,例如点311和315,这是因为任何两个相异的点都会唯一确定一条直线。 There is a simple method for determining the straight line is to determine the location of two distinct points on the straight line, such as points 311 and 315, since any two distinct points of a line are uniquely determined. 应该指出的是,这些点实际上是以有限的精度确定的,因此,与选择的点靠在一起的情况相比,如果选择的点相对远离,那么用以确定所述直线的精度将会更高。 It should be noted that these points are actually limited accuracy of the determination, and therefore, the selected point closer together than in the case, if the selected point is relatively far, then to determine the accuracy of the line will be more high.

[0055] 基站1200在下行链路上发射导频信号。 [0055] The base station 1200 transmits pilot signals on the downlink. 依照本发明,通过发射不同强度等级的导频信号,可以确定无线终端的噪声特征线。 According to the present invention, by the guide emitting different intensity levels of the pilot signal, the noise characteristic line may determine the wireless terminal. 通常,第一导频信号是以第一功率电平发送的,由此可以获取第一个点,而第二导频信号则是以与第一功率电平不同的第二功率电平发射的,由此可以获取第二个数据点。 Typically, the first pilot signal is transmitted a first power level, thereby obtaining a first point and the second pilot signal is based on a first and a second power level different from the power level of the transmission , thereby to obtain a second data point. 此外,如果为各个导频信号使用了不同音调,那么也可以同时发射第一和第二导频。 Moreover, if different tones for each pilot signal, it may transmit simultaneously the first and second pilot.

[0056] 依照图3,通过测量和处理第一导频信号,可以产生直线305上的第一个点,其中所述直线将会识别接收到的导频功率317以及相应的总噪声电平319。 [0056] In accordance with FIG. 3, by measuring and processing the first pilot signal, a first point may be generated on the line 305, the straight line will be identified wherein the received pilot power 317, and the corresponding total noise level 319 . 依照本发明的一个实施例,除了非零导频之外,BS1200还会在下行链路上发射“零导频”信号。 According to one embodiment of the present invention, in addition to zero to the pilot, the BS 1200 will transmit the "zero pilot" signal on the downlink. 零导频包含了BS并未发射信号功率的传输资源(自由度),例如基站用以发射零功率导频信号的资源。 Null pilot resources include transmission power of the BS does not transmit signals (degrees of freedom), such as a base station for transmitting resource zero power pilot signal. 作为零导频信号的第二导频信号将会产生直线305上的点317,并且识别零导频噪声电平313,其中所述零导频噪声电平313等价于那些与信号无关的噪声307。 The second pilot signal pilot signal as a zero point 317 will produce on the line 305, and identifies the zero-noise level of the pilot 313, wherein the null pilot 313 noise level equivalent to those of the signal independent of noise 307. 根据在导频和零导频上测得的噪声,WT1300可以获取两个处于不同信号功率的不同噪声估计313、315,其中这两个不同的信号功率可以是零功率以及接收导频功率317。 The pilot and zero in the noise on the measured pilot, WT 1300 can obtain two different noise at different signal power estimates 313, 315, wherein the two different power signals may be zero power 317 and the received pilot power. 此外,WT1300还可以从这两个点311、315中确定图3中的完整的噪声特征线305。 Further, WT1300 can also be determined from two points 311, 315 in full noise characteristic line 305 in FIG. 3. 然后,WT1300可以将这条直线305 的参数(例如斜率和交点,或是其他等价信息集)传递到BS1200,以使BS1200能在对报告了多个信道质量值的WT1300执行发射操作的时候为指定的发射信号功率确定接收SNR。 Then, WT 1300 may be parameters (e.g., slope and intersection, or other equivalent set of information) of these straight lines 305 is transmitted to the BS 1200, the BS 1200 to enable the WT 1300 can be in the report when performing the transmitting channel quality values ​​of a plurality of channels determining transmit signal power specified received SNR. 由于零导频具有大小为零的信号功率,并且另一方面,其他导频通常是以相对较大的功率发射的,因此这两个与图3中的零导频以及非零导频相对应的点311、315将会相对远离,由此在表征线305的过程中取得很高的精度。 Due to the zero power level of the pilot signal having zero, on the other hand, other pilot is typically a relatively large transmission power, so that the two in FIG. 3, and a non-zero null pilot pilot corresponding 311, 315 will be relatively far from the point, thereby obtaining high accuracy in the process of characterizing the line 305.

[0057] 现在将进一步论述信号噪声以及不同信令的问题。 [0057] The problem will now be further discussed and different signaling signal noise. 图4中的图表400描述的是纵轴401上相关信号接收功率与横轴403上的总噪声之间的关系。 FIG 4 is a graph 400 depicts the relationship between the longitudinal axis 401 of the relevant signal received power to total noise on the horizontal axis 403. 并且在图4中给出了示范性的噪声特征线405的例示。 And noise characteristic line given the exemplary embodiment 405 shown in FIG. 4. 依照本发明,为了表征直线405,BS1200将会发射信号,以使WT1300能对直线上的至少两个相异点进行测量,例如点407和409,然后,这些从测量中获取的用于表征直线405的信息将会传送到BS1200。 According to the present invention, in order to characterize a straight line 405, BS1200 will transmit signals so WT1300 can be measured at least two distinct points on the line, such as points 407 and 409, and then, those obtained from the measurements for characterizing the linear information 405 will be sent to BS1200. 其中举例来说,BS1200可以发射两个不同的信号功率Pl和P2,这两个信号功率是作为图4中显示的功率Yl和Y2而被接收的。 Wherein for example, BS1200 two different signals may be transmitted power Pl and P2, the two received signal power is being power Yl and Y2 as shown in FIG. 4. WT1300分别对用Y1415和Y2419表示的相应接收信号功率以及用Xl 413以及X2 417表示的相应总噪声进行测量。 WT1300 respectively corresponding received signal power represented by Y1415 and Y2419 well with Xl 413 and the corresponding total noise measurement represented by X2 417. 而直线405的斜率和交点则是从Xl 413、X2 417,Yl 415以及Y2 419中唯一确定的。 And the line 405 is the intersection of the slope and is uniquely determined from Xl 413, X2 417, Yl 415 and Y2 419 in. 在一个实施例中,Pl和P2都是已知和固定的。 In one embodiment, Pl and P2 are known and fixed. 在另一个实施例中,P2 可以是与导频信号相对应的导频功率,Pl则是用于表示零信号的零点,其中该信号将会占用某些传输功率为零的资源。 In another embodiment, P2 may be a pilot signal corresponding to the pilot power, Pl is 0.0 is used to represent the signal, wherein the signal will take up some of the transmission power resource to zero. 然而一般来说,Pl并不一定为零。 In general, however, Pl is not necessarily zero. 例如在某些实施例中,Pl 可以是小于P2的某个正数。 For example, in certain embodiments, Pl may be a positive number less than P2.

[0058] 一旦BS1200从接收到的反馈信息中确定了噪声特征线405,那么BS1200可以为任何指定传输功率Q计算WT接收机1302上的SNR。 [0058] Once BS1200 noise characteristic line 405 is determined from the feedback information received, then BS1200 SNR may be calculated on the WT receiver 1302 of any given transmission power Q. 举例来说,在图4中显示了用于确定与指定传输功率Q相对应的SNR的过程。 For example, for determining the display with the specified transmission power Q corresponding to the SNR in the process of FIG. 首先,BS1200在点(Y1,P2)与(Υ1,Ρ1)之间执行线性内插,以便找出与传输功率Q相对应的相应接收信号功率W21 : First, perform a linear interpolation between points in BS1200 (Y1, P2) and (Υ1, Ρ1), in order to identify the respective received signal power and transmission power Q corresponding W21:

[0059] y = n+y2"n-fe-Pi). [0059] y = n + y2 "n-fe-Pi).

Pl-Pl v 7 Pl-Pl v 7

[0060] 通过在点(X2,P2)与(XI,Pl)之间执行线性内插,可以给出与传输功率Q相对应的相应噪声功率: [0060] by a point (X2, P2) performs linear interpolation between (XI, Pl), can be given to the transmission power Q corresponding to the respective noise power:

ΥΊ^ΥΛ t 、 ΥΊ ^ ΥΛ t,

[0061] X = [0061] X =

[0062] 然后,通过使用下式,可以给出WT1300所经历的并与BS发射功率Q相对应的SNR, [0062] Then, by using the following formula may be given WT1300 experienced and power Q corresponding to the SNR BS transmitting,

16 16

Figure CN1871862BD00171

[0064] 在图4所示的噪声特征线405上,点A 411具有大小为X 420的X轴数值以及大小为Y 421的Y轴数值,并且点A 411与传输功率Q是对应的。 [0064] In the noise characteristic line 405 shown in FIG. 4, point A 411 having a size X 420. X-axis values ​​and Y Y axis value of size 421, and transmission power point A 411 is the corresponding Q. 应该指出的是,对于将点A 411与原点422相连的直线来说,其斜率即为SNR⑴),其中所述SNR(Q)即为在使用发射功率Q时在WT接收机1302上的SNR。 It should be noted that, for the line connecting the origin point A 411 422, its slope is SNR⑴), wherein said SNR (Q) is the SNR on the use of the WT receiver 1302 when the transmission power Q. 因此,举例来说,根据从WT1300报告的统计数值中产生的噪声特征线405,BS1200可以确定所需要的传输功率,以便满足WT1300对于指定SNR的需要。 Thus, for example, according to 405, the transmission power may be determined BS1200 desired characteristic line noise generated from the statistic report WT1300, WT1300 order to meet the needs for a given SNR.

[0065] 图5显示的是对横轴503上的频率与纵轴501上的功率之间的关系进行描述的图表500。 [0065] FIG. 5 shows the relationship between the power at the frequency on the horizontal axis 501 and the longitudinal axis 503 of the chart 500 will be described. 图5与本发明的一个示范性实施例相对应,在这个实施例中,无线蜂窝网络使用了正交频分复用调制(OFDM)。 5 embodiment corresponds to an exemplary embodiment of the present invention, in this embodiment, the wireless cellular network uses orthogonal frequency division multiplex modulation (OFDM). 在这种示范情况下,频率505分为31个正交音调,这样一来,即使信道中存在多径衰落,在不同音调上进行的传输也不会在接收机上相互干扰。 In this exemplary case, the frequency is divided into 31 orthogonal tones 505, so that, even if the presence of multipath fading channel, transmissions on different tones do not interfere with each other at the receiver. 最小的信号传输单元是OFDM码元中的单个音调,它与时间和频率资源的组合是对应的。 Minimum signal transmission unit is a single tone OFDM symbol, which is a combination of time and frequency resources are corresponding with.

[0066] 图5显示的是音调在指定OFDM码元上的功率分布。 [0066] FIG. 5 shows the power distribution in the designated tone OFDM symbols. 在这个实施例中,导频515是在某个音调上以固定导频功率507发射的已知码元,零导频513则是传输功率为零的音调。 In this embodiment, the pilot tone 515 is in a fixed pilot power transmitted known symbol 507, 513 is zero pilot tone transmission power is zero. 这些导频音调515和零导频音调513可以随时间而跳变,这意味着在从一个OFDM码元变化到下一个码元的时候,这些音调所占用的位置有可能发生变化。 The pilot tones 515 and pilot tones 513 zero may hop over time, which means that the change from one OFDM symbol to the next symbol time, the position occupied by these tones may change. 在延长时段中,由于跳变序列重复,因此导频信号传输是周期性进行的。 An extended period, due to the hopping sequence is repeated, so pilot signal transmission is carried out periodically. 在图5中显示了四个导频音调515以及一个零导频音调513。 It shows four pilot tones 515 and a zero pilot tones in FIG. 5, 513. 导频515和零导频513的音调位置都是为BS1200和WT1300所知的。 The pilot 515 and pilot 513 zero tone position are known to BS1200 and WT1300. 此外,在图5中还显示了沈个数据音调511,它们具有相应的传输功率电平509。 Further, in FIG. 5 also shows the sink data tones 511, having respective transmission power level 509. 如图5所述,导频音调传输功率电平515明显高于数据音调传输功率电平509,这使得无线终端很容易识别导频音调。 As shown in Figure 5, pilot tone transmission power level significantly higher than the 515 data tone transmission power level 509, which makes it easy to identify the wireless terminal pilot tones. 通常,在图5所示的所有数据音调中,数据音调传输功率509未必相同, 其电平509有可能随着数据音调的不同而改变。 Typically, all the data tones shown in FIG. 5, the data tones 509 are not necessarily the same transmission power, which level may vary with different data 509 have changed tones.

[0067] 对用全向天线部署的无线配置状况而言,本实施例规定了单独的零导频,也就是通常所说的小区零导频。 [0067] The configuration of the radio conditions to the full deployment of the antenna, the embodiment provides a single null pilot, which is commonly referred to as a cell null pilots present embodiment. 如图5所示,假设导频音调是以功率P发射的,传送数据业务的音调是以功率Q发射的。 5, assuming pilot tones are transmitted power P, tone transmission power Q data service is transmitted. 那么,WT1300可以通过观察接收到的导频信号来测量SNR,在这里我们将这个SNR称为SNR(P)。 Then, WT1300 that can be received by observing the measured SNR of the pilot signal, here we called this SNR SNR (P). 我们的目的是使基站1200能够获取关于SNR(Q)的估计,这个SNR(Q)即为无线终端1300认定的SNR,它与基站使用功率Q所进行的数据传输相对应,并且Q可以不同于P。 Our aim is to make the base station 1200 can obtain estimates of the SNR (Q), and that the SNR (Q) is the radio terminal 1300 identified by the SNR, the base station uses the power Q for the data transmission corresponding to, and Q may be different from P.

[0068] 接收SNR的信息是非常重要的,因为所述接收SNR将会确定可支持的编码速率与调制星座模式图的组合。 [0068] Information received SNR is very important because the combination determines the received SNR will be supported coding rates and modulation constellation pattern in FIG. 对指定的目标码组差错率(例如单个码字的传输出错的概率)以及每一种编码速率和调制星座模式图来说,在这里可以定义一个最小SNR,其中接收SNR必须超出这个最小SNR,以使传输失败的概率低于指定目标比率(例如的码组差错率)。 Of the specified target block error rate (e.g., transmission of a single codeword error probability) and each coding rate and modulation constellation is a schematic diagram, where you can define a minimum SNR, which must exceed the minimum received SNR SNR, so that the probability of transmission failure ratio is lower than the target (e.g., a block error rate). 依照这个观点,对BS1200来说,较为理想的是能够正确估计SNR(Q),以便解出发射功率Q, 其中发射功率Q会为期望编码速率以及调制星座模式图产生一个比最小SNR更好的SNR。 According to this view, for BS1200, it is desirable to be able to correctly estimate the SNR (Q), in order to solve the transmission power Q, where Q is the desired transmit power and coding rate modulation constellation generated schematic view of a better than minimum SNR SNR.

[0069] SNR(Q)与Q之间的关系取决于那些与信号相关的噪声。 [0069] SNR (Q) depends on the relationship between Q and those associated with the noise signal. 为了进行描述,我们假设与信号相关的噪声和发射功率是成比例的,并且我们还使用了图3和4中显示的噪声特征线305、405来表征作为接收信号功率函数的总噪声相关性。 For description, we assume that the noise associated with the signal and transmit power is proportional to, and we also used the noise characteristic line in FIG. 3 and 4 shown in 305, 405 correlated to characterize the total noise as a function of the received signal power. 这个原理同样可以扩展到其他 This principle can also be extended to other

17状况中。 17 situation.

[0070] 假设用a表示信道增益,这样一来,当BS以功率P执行发射操作时,无线终端的接收功率将会是a P。 [0070] Suppose represents the channel gain of a, Thus, when the power P BS to perform transmission operation, the received power of the wireless terminal will be a P. 假设N表示的是与信号无关的噪声,并且YP表示的是与信号相关的噪声,其中Y是发射功率P的比例因数。 Let N represents the signal-independent noise, and YP represents the noise associated with the signal, wherein Y is a scaling factor P is a transmit power. 那么,在测量导频音调上的SNR的时候,WT1300 将会测量信噪比: So, measuring SNR on the pilot tones when, WT1300 will measure the signal to noise ratio:

[0071] [0071]

Figure CN1871862BD00181

[0072] 其中P是导频的恒定发射功率,N是WT1300经历的与信号无关的噪声。 [0072] where P is the constant transmission power of the pilot, N is the WT1300 subjected to signal independent noise. 我们通过调用这个“SNR1”来表示它会将那些与信号相关的干扰视为一个单独的实体。 We have to represent it will be those associated with the interference signal as a separate entity by calling this "SNR1".

[0073] 通过使用零导频,WT1300可以独立测量与信号无关的噪声N,这是因为BS1200 [0073] By using the null pilot, WT1300 an independent measurement signal independent of the noise N, because BS1200

并未在这个零音调上发射功率。 Not zero transmit power on the pitch. 通过对这个与信号无关的噪声N以及BS导频的接收功 By this received power independent of the noise signal N and the BS pilot

率aP进行比较,可以估计出不含信号相关噪声的SNR。 AP rate comparing SNR can be estimated without a signal correlated noise. 在这里,我们假设这个比值是: Here, we assume that this ratio is:

Figure CN1871862BD00182

其中名称“SNR0”表明它认为没有与信号相关的噪声。 Where the name "SNR0" indicating that it sees no noise associated with the signal. 然后,通过使用下式, Then, by using the formula,

可以给出SNRl(P)与SNRO(P)之间的关系: It can be given the relationship between SNRl (P) and SNRO (P):

[0074] [0074]

Figure CN1871862BD00183

[0075] 为了便于标记,我们定义 [0075] For ease of marking, we define

[0076] [0076]

Figure CN1871862BD00184

[0077] 通过与图3和4中的噪声特征线进行比较,我们可以看出=SNRO(P)对应的是直线与X轴的交点,而SRRl则等价于直线的斜率。 [0077] 3 and by comparison with the noise characteristic line in FIG. 4, we can see = SNRO (P) corresponds to the intersection with the X axis, and this is equivalent to SRRl slope of the line. 那么,作为SNRO(P)和SRRl的函数,我们可以写出下式: Then, as SNRO (P) and functions SRRl, we can write the following formula:

[0078] [0078]

Figure CN1871862BD00185

[0079] 在一个实施例中,测量结果SNRO(P)以及SRRl是由WT1300报告给BS1200的,并且BS1200可以从从这些报告中计算SNRl⑵。 [0079] In one embodiment, the measurement result SNRO (P) and is reported by WT1300 SRRl to BS1200 and BS1200 can be calculated from these reports from SNRl⑵.

[0080] 图6中的图表600描述的是纵轴601上的SNRl⑵与横轴603上的SNRO⑵之间的关系,其中SNR是以dB为单位来进行绘制的。 In [0080] 600 of FIG. 6 is a graph depicting the relationship between the SNRl⑵ SNRO⑵ 603 on the vertical axis and a horizontal axis 601, wherein the SNR in dB is plotted in units. 用线条605、607和609表示的三条曲线分别描述的是SRRl = 0,SRRl = 0. 5以及SRRl = 1。 By lines 605, 607 and 609 represent three curves are described SRRl = 0, SRRl = 0. 5 and SRRl = 1. SRRl = 0(线60¾的情况对应的是噪声与信号无关的情况,因此SNRl (P) = SNRO (P)。SRRl = 1 (线609)的情况对应的是信号相关噪声等于信号的情况,因此SNRl⑵决不会超过OdB。 SRRl = 0 corresponds to the case (60¾ line is independent of the noise signal, the so SNRl (P) = SNRO (P) .SRRl = 1 case (line 609) corresponding to the signal dependent noise is equal to the signal, and therefore SNRl⑵ never exceeds OdB.

[0081] 然后,BS1200可以从自WT1300接收的信息中计算接收SNR,其中所述接收SNR是数据业务的发射功率Q的函数。 [0081] Then, BS1200 WT1300 can be calculated from the information received from the received SNR, wherein the received SNR is a function of the transmission power Q of the data traffic. WT1300接收的SNR将会包括与信号相关的噪声,并且将会采用如下形式: WT1300 received SNR will include signal-dependent noise, and will take the following form:

[0082] [0082]

Figure CN1871862BD00186

[0083] 通过执行转化和替换,可以得到: [0083] By performing the replacement and conversion can be obtained:

Figure CN1871862BD00187

[0085] [0085]

Figure CN1871862BD00191

[0086] 因此,作为WT1300所报告的数值SNR(KP)和SRRl的函数,在这里可以为任何发射功率Q预测WT1300所经历的SNR。 [0086] Thus, the values ​​reported WT 1300 as SNR (KP) and SRRl function, where Q can be predicted SNR WT1300 experienced any transmit power. 如这些推导所述,通过使用零导频,WT1300可以确定统计数值并且将其发射到BS1200,这样一来,即使存在与信号相关的噪声,BS1200也可以对作为发射功率函数的SNR进行预测,其中所述噪声与发射功率是成比例的。 The derivation of the these, by using the null pilot, WT 1300 may be determined statistical value and transmit it to the BS 1200, Thus, even if the signal-dependent noise is present, the BS 1200 may predict the SNR as a function of the transmit power, wherein the noise is proportional to the transmit power.

[0087] 应该指出的是,与发送SNRO (P)以及SRRl所不同,WT1300还可以向BS1200发射其他等价报告集合,这些操作均落入本发明的范围以内。 [0087] It should be noted that the different transmission SNRO (P) and SRRl, WT1300 may also transmit other equivalent report set to BS1200, these operations fall within the scope of the present invention.

[0088] 本发明的方法和设备在多扇区小区中是非常实用的。 [0088] The method and apparatus of the present invention in a multi-sector cell is very practical. 在无线蜂窝系统中,基站1200往往是以这样一种结构部署的,其中每一个小区分成了图11所示的多个扇区。 In wireless cellular systems, often a base station 1200 deployed in such a structure, wherein each cell is divided into a plurality of sectors 11 as shown in FIG. 对扇区化环境而言,扇区1106、1108、1110之间的干扰会对接收SNR产生显著影响。 For a sectorized environment, interference between sectors would have a significant impact 1106,1108,1110 received SNR. 除了与信号无关的部分之外,总噪声还包含了与信号相关的部分,其中每一个与信号相关的部分都与来自同一小区110中的其他扇区的信号功率成比例。 In addition to signal-independent part, it covers part of the total noise associated with the signal, wherein each portion is associated with the signal are the same signal is proportional to the power of the cell 110 and from other sectors. 与图3所示的情况相比,在这种情况下,噪声特性将会更为复杂,因为在这种扇区化情况下,总噪声包含了两个或多个与信号相关的分量,而不是一个分量。 Compared with the case shown in FIG. 3, in this case, the noise characteristics will be more complicated, because in this case sectorized, the total noise includes two or more component associated with the signal, and not a component. 然而,总噪声仍旧可以用一条直线来表征,并且现在所述直线是在高维空间中定义的。 However, the total noise can still be characterized by a straight line, the straight line is defined and is now in a high-dimensional space. 例如,在这里可以使用交点和斜率来描述噪声特征线。 For example, the slope and the intersection point may be used herein to describe the noise characteristic line. 其中交点是与信号无关的噪声部分的函数,并且每一个斜率都与信号相关噪声部分在特定信号功率中的比例性是对应的。 Wherein the intersection portion is a function of the noise signal-independent, and each have a slope associated with the noise portion of the signal in a particular signal power ratio is corresponding.

[0089] 然而,在某些方案中可以简化关于噪声特征线的描述。 [0089] However, in some aspects can be simplified description of the noise characteristic line. 例如,在示范性的扇区化方法中,其中小区中的每一个扇区都可以使用全部或者近乎全部的传输资源,例如频带,以便在每一个扇区中执行发射操作。 For example, in the sector of an exemplary method in which each sector in a cell may use all or nearly all of the transmission resource, for example the frequency band, so as to perform a transmission operation in each sector. 从各个扇区发射的总功率通常是固定或已知的,但是不同的WT1300有可能接收到所述功率中的不同部分。 The total power transmitted from each sector is typically fixed or known, but different possible WT1300 received in different portions of the power. 由于扇区之间并未完全隔离,因此在一个扇区中发射的信号将会成为其他扇区的噪声(干扰)。 Because isolation between sectors is not complete, the signal transmitted in a sector other sectors will be a noise (interference). 此外,如果每一个扇区1106、1108、 1110被迫以指定自由度来发射相同的、成比例的或者几乎成比例的信号功率,那么来自其他扇区并且针对指定扇区1106、1108、1110中的WT1300的干扰是像信号相关噪声或自噪声那样出现的。 Further, if each sector 1106, 1108, 1110 are forced to specify the degree of freedom to transmit the same, or nearly proportional signal proportional to power, and then from the other sectors for a given sector 1106,1108,1110 interference WT1300 is so appear as signals related to noise or white noise. 出现这种情况是因为来自其他扇区的干扰会随着信号功率而扩缩,因此噪声特征线与图3中显示的线是非常相似的。 This occurs because of interference from other sectors and the signal power will increase as scaling, so the line noise characteristic line shown in Figure 3 is very similar.

[0090] 依照本发明,BS1200将会发射“小区零导频”之类的信号,以使WT1300能够结合所有与信号无关的噪声来估计噪声特征线的交点。 [0090] In accordance with the present invention, the BS 1200 will transmit the signal "zero pilot cell" or the like, so that WT1300 capable of binding to all regardless of the noise signal estimates the noise characteristic line of intersection. 此外,举例来说,通过对扇区1106、1108、 1110之间的调度进行协调,可以使处于扇区边界1150、1152、IlM的WT1300不接收来自其他扇区的干扰(或是减少所遭受的干扰)。 Further, for example, by scheduling between sectors 1106, 1108 1110, coordination can be made in a sector boundary 1150,1152, IlM the WT1300 not receive interference from other sectors (or decrease suffered interference). 依照本发明,BS1200将会发射“扇区零导频”之类的信号,以使WT1300能在仅仅顾及来自扇区子集的信号相关噪声的情况下估计噪声特征线的斜率。 According to the present invention, the BS 1200 will transmit the signal "sector null pilot" and the like, so that the WT1300 can only take into account the slope of the characteristic line noise estimation noise from the signal related to the subset of sectors. 然后,依照本发明,WT1300在反向链路上将那些与信号无关的SNR以及不同的斜率或是等价信息集合报告给BS1200。 Then, according to the present invention, the WT 1300 to those on the reverse link SNR signal-independent and different slopes or equivalent information report set to BS1200.

[0091] 图7在图示700中显示了用于本发明实施例的信令,其中所述实施例处于这样一种情况,即扇区化的蜂窝无线系统使用的是正交频分调制(OFDM)。 [0091] Figure 7 shows the signaling used in the present invention, in the illustrated embodiment 700, wherein the embodiment is a case that the sectorized cellular radio system using orthogonal frequency division modulation ( OFDM). 设想一个具有三个扇区701,703,705的BS1200,其中在所有扇区701、703、705中都重复使用了相同的载频。 Imagine a BS1200 having three sectors 701, 703, 701, 703 in which all sectors are repeated using the same carrier frequency. 与扇区701、703、705相对应的导频功率电平分别是用参考数字709、713和717表示的。 701, 703 corresponding to the sector pilot power level are represented by reference numerals 709,713 and 717. 对第一到第三扇区中的各个扇区来说,其数据信号功率电平分别是用参考数字711、715、719表示的。 For each sector of the first to the third sector, the power level of the data signal which are denoted by reference numerals 711,715,719. 在下文中将对具有其他数量的扇区的情况进行论述。 Hereinafter will be the case with other numbers of sectors discussed. 在这里假设基站1200的三个扇区1106、1008、1110是用图7所示的SO 70US1 703以及S2 705表示的。 Here it is assumed that three-sector base station 1200 is shown in Fig 1106,1008,1110 7 SO 70US1 703 and S2 705 represented. 图7显示的是在三个扇区以及指定的OFDM码元707上为下行链路传输实施的音调分配,其中包含了数据音调位置的实例,例如示范性的数据音调728,并且包含了导频音调位置的实例,例如示范性的导频音调728,此外还包含了零导频音调位置的实例,例如示范性的零导频音调721。 Figure 7 shows the tone allocation for the downlink transmission element 707 in the embodiment of the three sectors and designated OFDM symbol, which contains instance data tone positions, such as the exemplary data tones 728 and pilot comprising examples of tone positions, for example, an exemplary pilot tones 728, and also includes examples of pilot tone zero position, for example, zero exemplary pilot tones 721. 在这里假设每一个扇区共享相同频带,因此,扇区之间的相应音调将会相互干扰。 Here it is assumed that each sector share the same frequency band, and therefore, the pitch between the respective sectors will interfere with each other. 应该指出的是,在这里仅仅是出于说明目的而显示了音调的位置和顺序,在不同的实施方式中,音调位置和顺序是可以改变的。 It should be noted here merely for illustrative purposes shows the location and sequence of tones, in various embodiments, the tone location and the order can be changed.

[0092] 依照本发明,下行链路信号包含了一个或多个小区零导频,这些小区零导频是各个扇区701、703、705所共享的零音调。 [0092] In accordance with the present invention, the downlink signal includes one or more null pilots cells, these cells null pilot is shared by each of the sectors 701, 703 to zero pitch. 在小区零导频729中,每一个扇区701、703、705的传输功率都是零。 In the cell null pilot 729, 701, 703 each of the sector transmission power is zero. 此外,下行链路信号包含了一个或多个扇区零导频721、723、725,其中仅仅在扇区701、703、705的子集中,传输功率才是零。 Further, the downlink signal includes one or more sector null pilot 721,723,725, 701, 703 where only the sub-sector is concentrated, the transmission power is zero. 在与扇区零导频相同的音调中,较为理想的是具有一个导频音调或数据音调,其中所述音调的传输功率是固定的,并且是另一个扇区中的WT1300已知的。 In the same sector null pilot tones, it is desirable to have a pilot tone or tone data, wherein said tone transmission power is fixed, and the other sector is known WT1300. 例如,扇区Sl 703中的扇区零导频723在扇区SO 701中具有与之对应的导频音调731,并且在扇区S2 705中具有与之对应的导频音调737。 For example, sector null pilot in sector Sl 703 723 having a frequency corresponding pilot tones 731 in the sector SO 701, and has a corresponding pilot tones 737 in the sector S2 705.

[0093] 在图7显示的一个实施例中,在每一个扇区701、703、705中都有四个导频、一个扇区零导频以及一个小区零导频。 [0093] FIG. 7 shows in one embodiment, each sector 701, 703 has the four pilot, a pilot and a sector null cell null pilot. 例如,扇区SO 701具有四个导频731、733、735、737以及一个扇区零导频721和一个小区零导频729。 For example, sector SO 701 has four pilot 731,733,735,737 and a sector null pilot 721 and a cell null pilot 729. 通过对这些导频进行排列,可以使每一个扇区都具有两个唯一的导频,然后与另外两个扇区中的每一个扇区共享一个导频。 By arranging the pilot can make each sector has a unique pilot two, and then shared with each of the other two sectors of the sector a pilot. 例如,扇区SO 701具有唯一导频735、727 ;而导频731与扇区S2 705的导频737共享一个音调频率; 并且导频733与扇区Sl 703的导频739共享一个音调频率。 For example, sector SO 701 has a unique pilot 735,727; 731,737 sharing the pilot tone frequency with a pilot frequency of the sector S2 705; and 733 and the guide pilots of sectors Sl 703 739 share a pilot tone frequency. 此外,一个扇区的扇区零导频与其他扇区中的导频音调是一致的。 Further, a guide sector null pilot sector with the other sectors of pilot tones is consistent. 例如,对扇区S2 705中的零音调725而言,导频733、 739分别是在扇区SO 701和Sl 703中相同的音调上发射的。 For example, the sector null pilot tones S2 705 725, the pilot 733, 739 are transmitted in the sector SO 701 and Sl 703 in the same tone. 此外,导频音调、小区零音调以及扇区零音调的位置都是为BS1200以及WT1300已知的。 Further, the pilot tones, and cell null pilot tones a sector null pilot tones are known to BS1200 and WT1300.

[0094] 由于频率分集等诸多原因,导频会改变其位置或者随时间而“跳变”。 [0094] Since the frequency diversity and many other reasons, the pilot changes its position over time, or "jump." 图8给出了导频、小区零导频以及扇区零导频的音调跳变的一个实例。 Figure 8 shows the pilot, one example of the cell null pilots and sector null pilot tone hopping. 图8中的图表800描述的是纵轴801上的频率与横轴803上的时间之间的关系。 FIG 8 is a graph 800 depicts the relationship between the time on the horizontal axis 803 and frequency on the vertical axis 801. 其中每一个小的纵向分段805都与一个音调相对应,每一个小的横向分段807都与一个OFDM码元时间相对应。 Wherein each of the longitudinal segments 805 are small with a pitch corresponding to each small lateral segment 807 is associated with a corresponding OFDM symbol time. 每一个导频音调809 都是用具有垂直阴影的小方框表示的。 Each pilot tone 809 is a small block having the vertical hatching indicated. 并且每一个扇区零导频811是用具有水平阴影线的小方框表示的。 And each sector null pilot 811 is represented by a small box having the horizontal hatching. 而每一个小区零导频813则是用具有交叉阴影的小方框表示的。 And each cell null pilot 813 is represented by a small box with cross-hatched.

[0095] 在一个实施例中,导频音调实际上是依照模块化的线性跳变图来跳变的。 [0095] In one embodiment, the pilot tone hopping FIG actually accordance to the modular linear hopping. 依照本发明,扇区零音调与相同斜率值的导频跳变是依照相同的模块化线性图形发生跳变的。 According to the present invention, sector null pilot tones of the same frequency hopping slope value is following the same modular linear hopping pattern generator. 此外,在本发明的一个实施例中,小区零导频音调与相同斜率值的导频跳变是依照相同模块化线性图形发生跳变的。 Further, in one embodiment of the present invention, the cell null pilot tone value of the same slope hopping pilot is following the same modular linear hopping pattern generator.

[0096] 在一个实施例中,数据音调实质上是依照一个序列发生改变的模块化线性跳变图形来跳变的。 [0096] In one embodiment, the modular data tones is substantially linearly changed in accordance with a hopping sequence to the hopping pattern. 在本发明的另一个实施例中,小区零导频跳变与数据跳变是依照序列发生改变的相同模块化线性图形来跳变的。 In another embodiment of the present invention, the cell null pilot hopping with the hopping data following the same modular linear pattern is changed to the sequence hopping. 在该实施例中,当小区零导频音调与某个导频音调发生冲突时,其中每一个扇区中都会停止一个导频音调传输,并且所述导频音调将被有效清除,但是至少在某些扇区中,导频音调的传输将会继续,并且小区零导频音调实际上将会变得不可用。 In this embodiment, when the cell null pilot tones and pilot tones of a conflict, where each sector will stop transmission of a pilot tone, and the pilot tones to be cleared effectively, but at least in some sectors, the transmission of pilot tone will continue, and cell null pilot tones will become practically unusable.

[0097] 假定WT1300与基站1200中的扇区SO建立连接,并且从SO到WT1300的信道增益是由α给出的。 [0097] WT1300 assumed the base station sector SO 1200 to establish a connection, and the channel gain from SO WT1300 is given by α. 同样,假设从Sl到WT1300的信道增益是由β给出的,并且从S2到WT1300 的信道增益是由、给出的。 Similarly, assuming that the channel gain from Sl to WT1300 is given by β, and the channel gain is composed of S2 to WT1300, given. 最后,为了完整起见,假设在从SO到WT1300的链路中,与信号相关的噪声包括自噪声,其中所述自噪声与信道增益为S的发射功率是成比例的。 Finally, for completeness, it is assumed from SO to the WT1300 link, associated with the white noise signal includes noise, wherein the white noise gain of the channel transmit power is proportional to S.

[0098] 假设在这三个扇区中,数据音调的发射功率是分别由Q0、Q1和Q2给出的。 [0098] Assuming these three sectors, data tones are given by the transmit power is Q0, Q1 and Q2. 那么对从SO到WT的链路而言,接收SNR是由下式给出的: Then the link from SO to WT, the received SNR is given by:

[0100] 在本论述的剩余部分,假设其他扇区所导致的干扰(0Q1和YQ》远远大于来自同一扇区中的信号相关噪声SQO的干扰,这样一来,为了简化起见,在后续论述中将会省略这一项。 [0100] In the remainder of this discussion, assume that the interference caused by the other sectors (0Q1 and YQ "far greater than the interference signal from the noise associated SQO the same sector, so that, for simplicity, the discussion that follows It will be omitted in this one.

[0101] WT1300应该向基站提供一组参数,由此基站将会具有足够信息来为从SO到WT 1300的下行链路数据传输预测接收SNR。 [0101] WT1300 should provide a set of parameters to the base station, whereby the base station will have enough information to from SO to WT 1300 is the predicted received downlink data transmission SNR. 为了获取这个信息,基站可以使用零导频音调。 To get this information, the base station may use the pilot tone zero. 在小区零导频中,每一个扇区的传输都是零,通过使用所述小区零导频,可以测量与信号无关的噪声。 In the cell null pilots, transmission of each sector are zero, by using the cell null pilot, regardless of the signal may be measured noise. 此外,通过将其与SO导频的接收强度进行比较,可以给出如下的SNR : Furthermore, by comparing the reception intensity of the pilot with the SO, the following can be given SNR:

Figure CN1871862BD00211

[0103] 接下来,在不同的实施例中,如果其中一个相邻扇区并未执行发射操作,那么扇区零导频音调可以用于测量SNR。 [0103] Next, in various embodiments, if one of the neighboring sectors emitting operation is not performed, the sector null pilot tones may be used to measure the SNR. 特别地,在这里为扇区SO设想与S2中的扇区零导频音调相对应的导频音调。 In particular, where the sector is contemplated S2 is turned zero pilot tones corresponding to the pilot tones into sectors SO. 然后,根据扇区SO中的这个导频,可以对SNR进行测量,由此可以得到以下数值: Then, according to the sector SO of the pilot, the SNR can be measured, the following values ​​can be obtained:

Figure CN1871862BD00212

[0105] 其中干扰扇区是Sl (具有路径增益β)。 [0105] Sl is a sector where interference (with path gain β). 同样,通过对作为Sl中的扇区零音调的导频音调上的SNR进行测量,干扰扇区将会是扇区S2 (具有路径增益Y ),并且最终得到的SNR是由下式给出的: Similarly, the SNR of the pilot tone as the sector null tones Sl is measured, the interference sector would be the sector S2 (having the Y path gain), and the resulting SNR is given by the formula :

Figure CN1871862BD00213

[0107] 在这两种情况中,噪声特征线的斜率分别是#以及! [0107] In both cases, the slope of the noise characteristic line, respectively, and #! .

[0108] 接下来,如果SNR是用不与其他扇区中的扇区零导频相对应的导频音调直接测量的,那么这个SNR测量操作将会顾及来自其他两个扇区的干扰。 [0108] Next, if the SNR is measured directly by infrequent and sector null pilot in the other sectors corresponding pilot tones, then the SNR measurement operation will take into account the interference from the other two sectors. 由于这个测量结果包含了来自两个扇区的干扰,因此在这里将其称为SNR2。 Since this measurement includes the interference from both sectors, so here is referred to as SNR2.

Figure CN1871862BD00214

[0110] 在这种情况下,噪声特征线的斜率是, [0110] In this case, the slope of the noise characteristic line,

Figure CN1871862BD00215

[0111] 通过将下列SRR定义为噪声特征线的恰当斜率值,可以将SNRl0⑵、SNRIy (P)以及SNR2 (P)与SNRO (P)联系在一起: [0111] By following the appropriate SRR is defined as the slope of the noise characteristic line values, SNRl0⑵, SNRIy (P) and SNR2 (P) may be linked to SNRO (P):

Figure CN1871862BD00221

[0115] SRR本身可以用SNR表示并以如下方式计算: [0115] SRR SNR can be expressed by itself and is calculated as follows:

Figure CN1871862BD00222

[0119] 应该指出的是,SRR2可以作为SRRl0与SRRIy的总和来加以确定。 [0119] It should be noted, SRR2 may be determined as the sum SRRl0 and SRRIy.

[0120] 然后则可以将SNR写为SNRO (P)和SRR的形式: [0120] then the SNR can be written in the form SNRO (P) and the SRR:

Figure CN1871862BD00223

[0124] 如果WT1300将这些统计数值的一个充分集(例如SNRO (P)、SRRle、SRRl Y、SRR2) 报告给基站1200,那么基站1200可以根据发射功率Q0、Q1和Q2来预测WT1300接收的SNR。 [0124] If WT1300 a full set of these statistical values ​​(e.g. SNRO (P), SRRle, SRRl Y, SRR2) to the base station 1200, the base station 1200 may be predicted WT1300 received SNR according to the transmission power Q0, Q1 and Q2 . 概括的说,对具有功率Q0、具有来自扇区Sl和S2的干扰以及具有功率Ql和Q2的数据传输而言,WT1300所经历的SNR是通过对发射功率为P的导频音调执行测量而被给出的: In summary, having power Q0, with interference from sector Sl and S2, and a data transmission in terms of power and Ql and Q2, the WT 1300 is the SNR experienced by the transmit power of pilot tones P measurement is performed given by:

[0126] [0126]

Figure CN1871862BD00224

[0127] 在图9中,图示900显示了关于扇区SO中的示范性WT的三种情形。 [0127] In FIG. 9, the display 900 illustrates three scenarios regarding the sector SO exemplary WT. 小区901包括三个扇区SO 903,Sl 905以及S2 907。 Cell 901 includes three sectors SO 903, Sl 905 and S2 907. 图9显示了一个接近扇区Sl 905的边界的WT909, 其中WT 909受到来自扇区Sl 905的严重的下行链路干扰。 Figure 9 shows a proximity boundary 905 of sector Sl WT909, where WT 909 is severely downlink interference from sector Sl 905. 小区921包含了三个扇区SO 923,Sl 929以及S2 927,该小区921显示了一个处于扇区SO 923的中心位置,并且远离扇区边界的WT929。 Cell 921 includes three sectors SO 923, Sl 929 and S2 927, which shows a cell 921 in the center position of the sector SO 923, and away from the sector boundary WT929. 而小区941则包含了三个扇区S0943、S1 945以及S2 947,它显示的是接近扇区S2 941的边界的WT949,其中WT949受到了来自从扇区S2 947的严重的下行链路干扰。 While cell 941 includes three sectors S0943, S1 945 and S2 947, which shows the boundary of a sector close WT949 S2 941, wherein WT949 received from serious downlink interference from the sector S2 947.

[0128] 在本发明的一个实施例中,在这三种情况中的每一种情况中,WT都会向BS1200发送被测统计数值的一个子集,以便减少反向链路上传递的信息量,其中所述反向链路可以是上行链路。 [0128] In one embodiment of the present invention, in each case in these three cases, WT will transmit a subset of the test statistic to the BS 1200, in order to reduce the amount of information transmitted on the reverse link wherein the reverse link may be the uplink.

[0129] 对图9中参考小区901所显示的情形而言,假设扇区SO 903中的WT909受到了来自扇区Sl 905的严重干扰。 [0129] In the case of the reference cell 901 shown in FIG. 9, it is assumed that the sector SO 903 WT909 severely of interference from sector Sl 905. 那么,用于基站的协调调度器1225可以切断扇区Sl 905中与扇区SO 903到WT909的传输相互干扰的数据传输。 Then, the base station coordinated scheduling for data transmission 1225 can be cut off in the transport sector Sl 905 sectors SO 903 to WT909 mutual interference. 同时,通过协调扇区S2 907中的传输, 可以使之具有与其在扇区SO中所具有的发射功率相同或者几乎相同的发射功率Q。 Meanwhile, the transmission sector S2 907 by coordination, can transmit power so as to have the same or almost the same transmit power in its sector in SO has Q. 然后, 通过使用下式,可以给出WT909所经历的SNR : Then, by using the following formula may be given SNR WT909 experienced:

Figure CN1871862BD00231

[0132] 在这种情况下,只要报告SNRO(P)以及SNRIy即可满足需要。 [0132] In this case, the report SNRO (P) and to meet the needs SNRIy.

[0133] 接下来,对图9中参考小区921所显示的情形来说,其中WT929并未接近扇区边界,由此可以在大多数或所有扇区上执行发射操作,而不会对WT^9造成太多干扰。 [0133] Next, with reference to the case of cell 921 is shown in FIG. 9, which is not close to the sector boundary WT929, whereby the transmission operation can be performed on most or all sectors, will not WT ^ 9 cause too much interference. 在这种情况下,假设基站调度器1225做出了三个扇区中各个扇区都应该以相同功率Q来发射数据的简化假设。 In this case, it is assumed that the base station scheduler 1225 makes the simplifying assumptions three sectors each sector should be transmitted at the same power Q data. 那么,对来自扇区SO 923的传输而言,通过使用下式,可以给出所经历的SNR : So, for the transmission from sector SO 923 by using the following formula may be given SNR experienced:

Figure CN1871862BD00232

[0136] 在这种情况下,只要报告SNRO (P)以及SRR2即可满足需要。 [0136] In this case, the report SNRO (P) and to meet the needs SRR2.

[0137] 接下来,对图9中参考小区941所显示的情形来说,WT949位于与扇区S2 947交界的扇区边界附近。 [0137] Next, with reference to the case of cell 941 is shown in FIG. 9, WT949 located near the sector boundary of sector S2 947 junction. 由于WT949受到了来自扇区S2 947的严重干扰,因此基站1200的协调调度器1225可以切断扇区S2 947中的相应数据传输。 Since WT949 severely interference from sector S2 947, and therefore the base station scheduler 1200 coordinator 1225 may cut the respective data transmission sector S2 947. 同时,假设扇区Sl 945的传输与扇区SO 943中的传输是以相同的发射功率Q调度的。 Meanwhile, assuming the sectors Sl transmission sector SO 943 and transmission 945 are the same transmit power Q scheduling. 那么,通过使用下式,可以给出WT949 所经历的SNR: Then, by using the following formula may be given SNR WT949 experienced:

Figure CN1871862BD00233

[0140] 在这种情况下,只要报告SNRO(P)以及SRRl0即可满足需要。 [0140] In this case, the report SNRO (P) and to meet the needs SRRl0. [0141 ] 因此,如果BS1200限制发射功率,使之等于某个值Q或是等于0,那么在这三种可能结构中的每一种结构中都只需要将一个信息子集从WT1300发射到BS1200。 [0141] Accordingly, if the transmit power limit BS1200, to equal or equal to a value Q 0, then the structure of each of the three possible structures are only a subset of information needs to be transmitted from the WT1300 to BS1200 . 特别地,在一个实施例中,无线终端1300确定WT1300当前所处的情形(例如图9中的小区901、图9中的小区921以及图9中的小区941所显示的情形)。 In particular, in one embodiment, the wireless terminal 1300 determines WT1300 situations (e.g., in FIG. 9 cells in cell 901, and 9921 of FIG case 941 shown in FIG. 9 cell) is currently located. WT1300可以将这个信息作为两比特的扇区边界指示符而将其发射到BS1200。 This information may be WT1300 as two sector boundary indicator bits and to transmit to BS1200. 扇区边界指示符指示的是无线终端相对于扇区边界的位置信息。 Sector boundary indicator indicates the position information of the wireless terminal with respect to a sector boundary. 其中第一个比特表示WT1300是否处于边界以及由此是否有必要切断相邻扇区中的传输。 Wherein the first bit indicates whether WT1300 at the boundary and thus the need of cutting off the transmission in neighboring sectors. 第二个比特可以表示这两个扇区中的哪一个扇区产生更大干扰。 The second bit may indicate which of the two sectors in a sector greater interference. [0142] 在下文所阐述的表1中,第1列列举的是可能的2比特扇区边界指示符。 [0142] In Table 1 set forth below, the first column is listed the possible 2-bit sector boundary indicator. 表1中的第二列则表示噪声成分信息。 The second column of Table 1 indicates the noise component information. 第三列列举的是BS1200对接收到相应扇区边界指示符作出响应而采取的控制操作。 The third column lists the corresponding received BS1200 sector boundary indicator responsive to take control operation. 第四列列举的是在给出了同一行列举的相应的报告扇区边界指示符的情况下报告的两个信道质量指示值。 The fourth column lists are given in the two channel quality indicator values ​​reported in the case report a sector boundary indicator corresponding to the same row recited.

Figure CN1871862BD00241

[0143]表1 [0143] TABLE 1

[0144] 这样一来,由于WT1300对基站1200标识了首选结构,因此WT1300只需要报告SNRO(P)以及三个SRR中的一个。 [0144] Thus, since the base station WT1300 1200 identifies the preferred structure, WT1300 only report SNRO (P) and three one SRR.

[0145] 现在将对具有任意数量扇区的多扇区小区进行论述。 [0145] Now multi-sector cells having any number of sectors will be discussed. 在本发明的另一个实施例中,对于如果存在任意数量的扇区的情形,那么可以将扇区分成三种扇区类型,其中我们用SO,Sl和S2来标记这些扇区类型。 In another embodiment of the present invention, for the case if the presence of any number of sectors, then the sector can be divided into three types of sectors, where we SO, Sl and S2 to mark the sector type. 这种扇区类型分类是以如下方式完成的,其中两个相邻扇区不会具有相同的类型。 This sector type classification accomplished in the following manner, wherein two adjacent sectors do not have the same type. 对两个不相邻的扇区来说,假设干扰的影响被认为足够小而不会产生重大影响,那么干扰的主要原因源于不同类型的相邻扇区。 Two non-adjacent sectors, the impact is assumed that the interference is considered small enough and will not have a significant impact, mainly due to less interference from adjacent sectors of different types. 这样则可以使用与三扇区小区相类似的方式来对这种情况进行处理,因为在每一个扇区中,干扰的主要来源都来自与该扇区相邻的两个扇区。 Such may be used in a manner similar to a three-sector cell processing to this situation, because in every sector, the main source of interference from both sectors of the two adjacent sectors.

[0146] 图10包含的是图示1000,该图示显示的是分别具有3、4、5个扇区的示范性小区1001,1021以及1041的扇区类型。 [0146] FIG. 10 is a diagram 1000 included, the figure shows an exemplary cell sectors each having a sector type 3,4,5 1001,1021 and 1041. 小区1001包含了第一扇区SO类型的扇区1003、第一扇区Sl类型的扇区1005以及第一扇区S2类型的扇区1007。 Cell 1001 includes a first sector SO type sector 1003, a first sector Sl type sector 1005, and a first sector S2 type sector 1007. 小区1021包含了第一扇区SO 类型的扇区1023、第一扇区Sl类型的扇区1025、第一扇区S2类型的扇区1027以及第二S2 类型的扇区10四。 Cell 1021 includes a first sector SO type sector 1023, a first sector Sl type sector 1025, a first sector S2 type sector 1027, and a second sector S2 type 10 IV. 而小区1041则包含了第一扇区SO类型的扇区1043、第一扇区Sl类型的扇区1045、第一扇区S2类型的扇区1047、第二SO类型的扇区1049以及第二Sl类型的扇区1051。 The cell 1041 includes a first sector SO type sector 1043, a first sector Sl type sector 1045, a first sector S2 type sector 1047, a second SO type sector 1049, and a second Sl type sector 1051. 下文所述的表2为不同数量的扇区提供了一个方案实例,其中扇区类型列表的顺序对应的是其围绕扇区前进的顺序(例如顺时针方向)。 The following Table 2 provides an example embodiment for different numbers of sectors, wherein a sector corresponding to the order of the list is the type of sequential sectors around its forward (e.g., clockwise).

Figure CN1871862BD00251

[0147]表 2 [0147] TABLE 2

[0148] 通过使用上述扇区类型方案,可以将用于三扇区范例并且包含了小区零导频和扇区零导频的方案用于任意数量的扇区。 [0148] By using the sector type scheme, can be used for example three sectors and contains an arbitrary number of sectors and cell null pilot sector null pilot scheme for.

[0149] 虽然在OFDM系统环境中对本发明的方法和设备进行了描述,但是本发明的方法和设备还适用于各种类型的通信系统,其中包括众多的非OFDM类型的系统。 [0149] Although the method and apparatus of the invention has been described in an OFDM system environment, the methods and apparatus of the present invention is also applicable to various types of communication systems including many non-OFDM type systems. 此外,某些特征还适用于非蜂窝系统。 In addition, certain features are also applicable to non-cellular systems.

[0150] 在不同的实施例中,这里所描述的节点是用一个或多个模块实现的,由此执行与本发明的一个或多个方法相对应的步骤,例如信号处理、消息产生和/或传输步骤。 [0150] In various embodiments, nodes described herein are implemented using one or more modules, thereby performing one or more methods of the present invention corresponds to the step, such as signal processing, message generation and / or transmission steps. 因此, 在某些实施例中,本发明的不同特征是用模块实现的。 Thus, in some embodiments, various features of the present invention is implemented in the module. 这些模块可以通过使用软件、硬件或是软件与硬件的组合来实现。 The modules may be implemented using software, hardware or a combination of software and hardware. 在上述方法或方法步骤中,有很多方法或方法步骤都可以用机器可读介质中包含的机器可执行指令来实施,由此可以对通用计算机之类的有或没有附加硬件的设备进行控制,以便在一个或多个节点中实现全部上述方法或是上述方法中的一部分,其中举例来说,所述机器可执行指令可以是软件,所述机器可读介质可以是RAM、软盘等存储器设备。 In the above-described methods or method steps, there are many methods or method steps can be used a machine-readable medium, comprising machine-executable instructions to embodiments, may be controlled thereby, with or without additional hardware, a general purpose computer apparatus or the like, to implement a portion or all of the above methods of the above methods in one or more nodes, wherein for example, the machine executable instructions may be software, the machine-readable medium may be RAM, floppy disk memory devices. 相应地,本发明还涉及一种包含了机器可读指令的机器可读介质,所述指令促使处理器之类的设备以及相关硬件执行上述一个或多个方法中的一个或多个步骤。 Accordingly, the present invention relates to a machine readable instructions comprising a machine-readable medium, the instructions cause the processor-based device and associated hardware to perform one or more of one or more method steps described above.

[0151] 根据上文中关于本发明的描述,本领域技术人员可以清楚了解上述发明方法和设备的众多附加变化。 [0151] The above description of the present invention, those skilled in the art will be apparent numerous additional variant of the method and apparatus of the invention described above. 这些变化都被视为落入本发明的范围以内。 These variations are considered to fall within the scope of the invention. 在本发明的不同实施例中,本发明的方法和设备可以与CDMA、正交频分复用(OFDM)和/或其他那些可以用于在接入节点与移动节点之间提供无线通信链路的通信技术结合使用。 In various embodiments of the present invention, the method and apparatus of the present invention may be used with CDMA, orthogonal frequency division multiplexing (OFDM), and / or those that can be used to provide other between access nodes and mobile nodes of a wireless communication link communication technology used in combination. 在某些实施例中,接入节点是作为基站实现的,其中所述基站使用了OFDM和/或CDMA来与移动节点建立通信链路。 In some embodiments the access nodes are implemented as base stations, wherein the base station uses the OFDM and / or CDMA with mobile nodes establish a communication link. 并且在不同的实施例中,移动节点是作为笔记本计算机、个人数据助理(PDA)或是其他那些包含了接收机/发射机电路以及用于实施本发明方法的逻辑电路和/或程序的便携设备实现的。 And, in various embodiments, the mobile node as a notebook computer, a personal data assistant (PDA), or other components are included a receiver / transmitter circuits and logic circuit embodiment of the method of the present invention and / or program the portable device achieved. [0152] 图14描述的是依照本发明并以同步方式在小区的多个扇区中发射导频音调的示范性方法1400的步骤。 [0152] Figure 14 depicts the exemplary method of transmitting a synchronized manner and pilot tones in a plurality of sectors of a cell in accordance with the present invention, step 1400. 该方法始于开始节点1402并且进行到步骤1404,在这个步骤中将会对当前的码元时间计数器进行初始化,例如将其初始化为1。 The method starts in start node 1402 and proceeds to step 1404, will the current symbol time counter is initialized in this step, for example, initialized to 1. 在示范性系统中,码元是以逐个码元的方式发送的,码元时间则是发射一个码元以及一个周期性前缀所要使用的时间,其中所述周期性前缀通常是所发射的码元的一部分的拷贝,它是为了提供冗余而被添加的,由此可以防止多径干扰以及微小的码元传输定时误差。 In the exemplary system, the symbol-by-symbol is transmitted way, the symbol time is the time to transmit one symbol and a cyclic prefix to be used, wherein the periodic prefix code is generally transmitted Element copy a part, which is added to provide redundancy, the multipath interference can be prevented and fine symbol transmission timing error.

[0153] 然后,操作将会从步骤1404进行到步骤1406,并且在步骤1406中将会对发射机进行控制,以便使用小区中的每一个扇区的预选传输功率电平并且根据预选的导频传输序列而在每一个扇区中以相同音调和同步方式来发射那些即将在当前码元时间以及每一个扇区中发射的导频码元,其中所述预选导频传输序列可以是导频音调跳变序列。 [0153] Then, the operation proceeds from step 1404 will to step 1406, and will control the transmitter in step 1406, to use a preselected transmission power level in each sector of the cell and in accordance with a preselected pilot guide transmission sequence in each of the sectors with the same pitch and in a synchronized manner to transmit those to be launched in the current pilot symbol time in each sector, and pilot symbols, wherein said preselected pilot sequence may be transmitted pilot tone hopping sequence. 虽然在小区的各个扇区中是并行发射导频的,但对零音调来说,在某个音调上发射的功率电平有可能是某些预选电平或是零。 While each sector in the cell is transmitted in parallel pilot, but zero tones, the power level of the transmission on a certain pitch there may be some pre-selected level or zero. 虽然导频信号传输时间通常在各个扇区中是同步的,但在扇区之间有可能出现轻微的定时偏移。 Although the pilot signal transmission time is usually synchronized in each sector, the sector is likely to occur between the timing offset slightly. 因此,每一个扇区实际上使用的是不同的码元传输时间周期。 Thus, each sector is actually using a different symbol transmission time periods. 然而,每一个扇区中的码元时间都进行了充分同步,并且在每一个扇区中,用于在各个扇区发射码元的码元时间中存在相当大的重叠。 However, the symbol time in each sector have been fully synchronized, and in each sector, for a considerable overlap exists symbol time transmit symbols in each sector. 通常,大量重叠会使码元传输开始时间同步到与发射周期性前缀发射时间相对应的至少一个时段以内,其中该时间有时也称为周期性前缀持续时间。 Typically, a large number of overlapped symbols cause the transmission start time synchronized to within at least one period of the periodic emission and the emission time corresponding to the prefix, wherein the cyclic time is sometimes referred to as prefix duration. 因此,一般来说,即使码元时间一点都不重叠,在不同扇区的码元时间之间也还是存在大量重叠。 Thus, in general, even if the symbols do not overlap at the time, there were still a large number of overlapping symbol time between different sectors.

[0154] 在特定码元时间中,将哪一个音调用于导频音调的判定是依照导频跳变序列音调信息1234中包含的音调信息1238做出的,而在小区的各个扇区中,指定音调上使用的功率是从功率电平信息1236中确定的。 [0154] In particular symbol time, a tone for which the pilot tones are determined in accordance with a pilot tone hopping sequence information contained in the tone information 1234 1238 made, and each sector in a cell, the power used on the designated pitch is determined from the power level information 1236.

[0155] 在步骤1406中,一旦在当前码元时间发射了导频音调,那么操作将会进行到步骤1408,并且在步骤1408中,当前码元的时间计数将会加1。 [0155] In step 1406, once the current symbol time transmit pilot tones, then the operation will proceed to step 1408, and in step 1408, the current symbol time count is incremented. 然后,在步骤1410中将会执行检查,以便了解当前码元时间是否达到最大码元时间。 Then, a check will step in 1410, in order to understand whether the current symbol time reaches the maximum symbol time. 如果当前码元时间等于其最大值,那么当前码元时间将会复位成1,由此在步骤1406中开始重复导频跳变序列。 If the current symbol time is equal to its maximum value, then the current symbol time will be reset to 1, thereby starting the pilot hopping sequence is repeated at step 1406. 导频音调的周期性传输将会依照所实施的导频音调跳变序列继续重复,直到基站传输停止或者其他事件促使导频信号传输过程中断为止。 Periodically transmitting pilot tones in accordance with the guide of the embodiment will pilot tone hopping sequence continues to repeat until stopped or other events base station transmits a pilot signal transmission causes interrupt occurs.

[0156] 现在参考图15〜17,其中显示了各种示范性导频音调传输以及导频信号传输功 [0156] Referring now to FIG. 15~17, which show various exemplary pilot tone transmission power and pilot signal transmission

率信息。 Rate information.

[0157] 依照本发明,在小区的多个扇区中,导频音调是用相同音调同时或者几乎同时发射的。 [0157] In accordance with the present invention, a plurality of sectors of a cell, the same pilot tone is tone transmitted simultaneously or nearly simultaneously. 在本发明的不同实施例中,码元传输时间会在小区的不同扇区中得到同步。 In various embodiments of the present invention, the symbol transmission time will be synchronized in different sectors of a cell. 假如完全同步,那么在任何指定时间,小区的不同扇区中发射的导频音调之间在时间上将是完全重叠的。 If complete synchronization, then at any given time, between the pilot tones transmitted in different sectors of the cell is completely overlapped temporally. 不幸的是,如上所述,由于对在高频工作的不同放大器和天线之间的传输执行同步非常复杂以及其他诸多理由,因此未必能够实现准确同步。 Unfortunately, as described above, since the transfer is made between different amplifiers and antennas for high frequency operation is very complicated and the synchronization many other reasons, and therefore may not be able to achieve accurate synchronization. 但在同步扇区实施方式中,在扇区间存在大量的码元时间重叠。 However, a sector sync embodiment, the large number of symbols temporal overlap among the sectors. 由此可以实现导频传输,其中大量重叠将会产生信号测量,并且所述信号测量假设对各个扇区码元传输时间而言,至少在其中一部分扇区码元传输时间中可能出现完全重叠。 Pilot transmission can thus be achieved, which will produce substantial overlap signal measurement and the signal measurement is assumed for symbol transmission time for each sector, wherein at least a portion of the sector symbol transmission time may appear completely overlap. 如上所述,在本发明的同步实施例中,小区中不同扇区之间的码元传输起始时间的差值往往要小于那些通常与发射码元包含在一起的周期性前缀的持续时间。 As described above, in the synchronous embodiment of the present invention, the difference in cell symbol transmission start times between different sectors tend to be less than the duration of those typically comprise cyclical prefix transmitted symbols together.

[0158] 出于论述目的,在这里假设存在完全同步,其中码元这类信号是同时在多扇区小区中的各个扇区以同步方式发射的。 [0158] For discussion purposes, it is assumed here that there is perfect synchronization, where the symbol such signals simultaneously in multi-sector cells each sector in a synchronized manner transmitted. 然而,上文中的论述表明这种精确同步通常不会出现并且不是实施本发明所必需的。 However, the precise synchronization discussed above show that generally does not occur and is not necessary for the embodiment of the present invention. 因此,每一个扇区中的传输都对应一个不同的码元时间, 这个码元时间可以略微偏离相邻扇区的码元时间。 Thus, the transmission of each sector corresponds to a different symbol time, the symbol time can be slightly offset from adjacent sectors symbol time. 依照本发明,当在小区中的各个扇区以同步方式在相同音调集合上发射导频音调时,小区中不同扇区的导频音调功率将会受到控制,以便许可不同的信号测量,在特定扇区中,这些测量将会帮助确定来自其他扇区、例如一个或多个相邻扇区的噪声成分以及背景噪声。 According to the present invention, when transmitting in a synchronized manner on the same pilot tones in the tone set in each sector of the cell, a cell of the pilot tone power of different sectors will be controlled to permit different measurement signals, in particular sector, which will help determine the measurements from the other sectors, such as sectors of a noise component and one or more neighboring background noise.

[0159] 为了帮助执行多种不同的信号测量,在单个码元传输时间中可以使用多个导频音调。 [0159] To assist a plurality of different signal measurements performed in a single symbol transmission time may be a plurality of pilot tones. 作为选择,每一个码元时间也可以只使用一个导频信号,其中在不同的码元时间,例如连续码元时间中将为导频信号分配不同的功率电平。 Alternatively, each symbol time may be used only one pilot signal, which in different symbol times, e.g. successive symbols in time for the pilot signal assigned different power levels. 在这种情况下,依照本发明,在不同码元时间执行的导频信号测量可以用于产生两个不同的信道质量指示值,并且这两个指示值将会返回给基站。 In this case, according to the present invention, the pilot signal measurements performed at different symbol time may be used to produce two different channel quality indicator values, and the two values ​​will indicate to the base station returns.

[0160] 图15是显示在本发明的一个示范性实施例中实施的双扇区导频音调传输序列的图表1500。 [0160] FIG. 15 is a dual-sector embodiment guide embodiment 1500 pilot tone transmission sequence chart in one exemplary of the present invention. 如下文所述,图15所示的序列可以扩展到具有N个扇区的系统中,其中N是大于1的任意数字。 As described below, the sequence shown in Figure 15 can be extended to a system with N sectors, where N is any number greater than 1. 图15显示的序列是专为一个包含了两个扇区的小区实施的,这两个扇区分别是扇区A和扇区B。 Figure 15 shows the sequence is designed for a cell comprises two sectors of the embodiment, the two sectors are the sectors A and B. 每一个扇区中的码元时间可以略微偏移,但是所述码元时间基本上是重叠的,因此,虽然这两个码元时间在很多情况下都是略微不同的码元时间,但是在这里是将其作为相同的码元时间来进行描述的。 Symbol time each sector may be slightly offset, but the symbol time substantially overlap, therefore, although the two symbol times in many cases are slightly different symbol time, but in this is the same as the symbol time to be described. 第一列1502的标题是时间,它指的是在假设扇区之间完全同步的情况下发射音调的码元时间。 The first column 1502 is the time of heading, it refers to the case where the emission tones between sectors assume complete synchronization symbol time. 在一个实施例中,如果在每一个码元时间为导频信号使用了相同的音调,那么每一个码元时间1〜4都与不同的当前码元时间相对应。 In one embodiment, if the same tone in each symbol time of the pilot signal, then each symbol time corresponding to ~ 4 are different from the current symbol time. 第二列1504的标题是音调,它列举的是用以发射导频信号的音调,例如频率。 Second column 1504 entitled pitch, it is exemplified for transmitting a pilot tone signal, such as frequency. 在该列中,每一行都与一个音调相对应。 In this column, each row corresponds to one pitch. 依照特定实施方式,不同的行可以对应相同或不同音调。 In accordance with certain embodiments, different rows may correspond to the same or different tones. 举例来说,如果第一到第四码元时间是相同的当前码元时间,那么,由于每一个导频信号都需要一个音调,因此,在列1504中列举的第一到第四音调将是不同的。 For example, if the first to fourth symbol time is the same current symbol time, then, since each pilot tone signal a need, therefore, recited in the column 1504 will be the first to fourth tone different. 然而,如果列1502 中的第一到第四码元时间对应的是不同的当前码元时间,那么列1504中列举的音调可以是相同的,也可以是不同的。 However, if the column 1502 of the first to fourth symbol time corresponding to a different current symbol time, then the column 1504 include tones may be the same, may be different.

[0161] 如上所述,每一行1512、1514、1516和1518都与小区的扇区A和B中的每一个扇区的音调传输相对应,其中所述音调可以是用于发射导频信号的音调。 [0161] As described above, each row are 1512,1514,1516 and 1518 correspond to sector A tone transmission each sector of the cell and B, wherein the tones may be used to transmit the pilot signal tone. 在每一个扇区中,传输功率电平可以是相同的,也可以是不同的。 In each sector, the transmit power level may be the same or may be different. 并且在所有情况下,在任何时间点发射的导频音调都是以预先选定的传输功率发射的。 And in all cases, at any time point pilot tones are transmitted at a pre-selected transmission power transmitted. 这样一来,由于将用以发射导频信号的传输功率和音调保存在了基站1200和无线终端1300中,因此这两个设备都会知道所述信息,并且这两个设备都是从小区中的有效定时信息中了解当前码元时间的。 Thus, since the transmission power used to transmit tones and the pilot signal stored in the wireless base station 1200 and terminal 1300, so that the two devices will know the information, and both devices are from the cell valid timing information about the current symbol time. 在图15中,第三列1506 列举的是在扇区A中发射的导频信号的导频信号传输功率电平,其中所述传输使用的是与特定的行相对应的音调。 In Figure 15, the third column 1506 is exemplified pilot signal transmission power level of the pilot signal transmitted in sector A, wherein said transmission is using a particular tone corresponding to the row. 同样,第四列1508列举的是在扇区B中发射的导频信号的导频信号传输功率电平,并且所述传输使用的同样是与特定的行相对应的音调。 Similarly, the fourth column 1508 include pilot signal transmission power level of the pilot transmitted in sector B pilot signals, and the transmission is similar to that used with a particular tone corresponding to the row. 为了在稍后对三扇区实施例进行说明,在这里包含了每一个列1502〜1510,但是在参考图15所描述的双扇区实施方式中则并非使用了这其中的每一列。 For a three sector embodiments will be described later, where each column contains 1502~1510, but in a double sector Embodiment 15 described with reference to the figures is not used in which each column.

[0162] 列1506和1508中的各个矩形表示的是在所指示的扇区中使用列1504中表示的音调以及在列1502中表示的常规码元时间发射导频信号的步骤。 [0162] Step column 1506 and column 1504 are used tones represented by each rectangle 1508 represents a sector of the indicated and the conventional symbols in the time indicated in column 1502 transmits a pilot signal. 在实践中,在每一个扇区A和B中,音调都是在略微不同的码元时间发射的,例如与列1502中列举的码元时间基本对应的第一和第二码元时间。 In practice, each of the sectors A and B, the pitch is slightly different in the transmitted symbol time, for example, include a column 1502 symbol time substantially corresponding to the first and second symbol time. 其中1被用于指示一个具有第一预选传输功率的非零导频,O 则被用于指示一个零音调传输,例如以大小为零的功率发射的导频信号。 1 wherein the non-zero pilot is used to indicate a transmission power having a first preselected frequency, were used to indicate a zero O-tone transmission, for example, guide a size of zero emission power pilot signal.

[0163] 如行1512所示,在扇区A中使用音调1并在码元时间1发射了数值为1的导频信号,但在扇区B中发射的是零导频信号。 [0163] As shown in line 1512, using a tone in sector A 1-symbol time and a value of 1 is turned transmit a pilot signal, but transmitted in sector B pilot signals is zero. 这样一来,在扇区B中可以测量扇区A的传输在其内的相同音调上造成的扇区间干扰的影响。 Effect of inter-sector Thus, in sector B, sector A may transmit the measurement result in the same tone interference therein. 此外还允许扇区A在不存在扇区B的传输所造成的干扰的情况下精确测量扇区A中的衰减。 A precise measurement of the sector in the case where attenuation also allow the interference sector A sector B does not exist in the transmission caused by the. 行1514对应的是码元时间2,在这个码元时间中,音调2将被用于在扇区A中发射零音调,并且将被用于在扇区B中发射数值为1的导频信号。 Line 1514 corresponds to symbol time 2, symbol at this time, the tone is used to transmit zero to 2 tones in sector A, and is used to transmit the values ​​in the sector B pilot signal 1 is turned . 由此允许扇区A确定扇区B中的传输在相同音调上引发的信号干扰量。 Thereby allowing the sector A determined amount of signal interference caused in a transmission sector B on the same tone. 行1516 对应的是码元时间3,在这个码元时间中使用了音调3而在两个扇区A和B中发射零导频信号,由此可以对音调3上的常规背景噪声进行测量。 Line 1516 corresponds to symbol time 3, the tones used in the symbol time 3 emit zero pilot signal two sectors A and B, whereby the background noise measurement in the conventional 3 tones. 行1518对应的是码元时间4,在这个码元时间中,扇区A和B都使用了音调4来发射数值为1的导频信号。 Line 1518 corresponds to symbol time 4, symbol at this time, the sectors A and B are used to transmit the value 4 is turned a pilot tone signal. 在这种情况下,每一个扇区都可以测量同时在各个扇区A和B中以相同的非零功率电平发射信号的效果。 In this case, each sector can be measured simultaneously in the same non-zero power level of the transmission signal results in each sector A and B, respectively. 通常, 导频信号是依照图15中的第一和第二行1512、1514以及行1516和1518中的至少一行来进行发射的,由此允许无线终端执行足够的信号测量,该信号测量将会作为两个不同的函数输入并为这两个函数所必需,其中所述函数用于依照本发明的一个特征来产生第一和第二信道质量指示值,并且该指示值是返回到基站1200的反馈。 Typically, the pilot signal is performed in accordance with the transmission in FIG. 15, and the first and second row 1516 and row 1512 of 1518 at least one row, thereby allowing the wireless terminal to perform a sufficient measurement signal, the measurement signal will as two different functions and input functions necessary for both, wherein said function for generating a first and a second channel quality indicator values ​​in accordance with a feature of the invention, and the instruction value is returned to the base station 1200 feedback.

[0164] 图16描述的是用于三扇区系统的示范性导频音调传输序列。 Described in [0164] FIG. 16 is an exemplary three sector system for guiding the pilot tone transmission sequence. 与图15中的实例一样,第一列1602对应的是码元传输时间,第二列1604对应的是音调,而列1606、1608以及1610则分别表示的是在小区所具有的三个扇区A、B、C中的各个扇区中的导频信号传输。 As with the example in FIG. 15, a first column 1602 corresponds to the symbol transmission time, the second column 1604 corresponds to the pitch, and the columns 1606, 1608 and 1610 is in a cell has three sectors respectively indicated a, B, C in each sector in the pilot signal transmission. 因此,与图15中的实例一样,与第一到第五行1612、1614、1616、1618、1620中的某一行相对应的列1606、1608以及1610中的各个矩形表示的是在所指示的扇区中在所指示的音调上发射导频信号的步骤。 Thus, with the example in FIG. 15, as with the first to fifth rows in a row 1612,1614,1616,1618,1620 corresponding columns 1606, 1608 and 1610 of the respective rectangle represents the sector in the indicated step pilot signal transmitted on a tone in the region indicated. 如上所述,虽然每一行所使用的音调在各个扇区中都是相同的,但在每一个码元时间都对应于同一个当前码元时间时,第一到第五音调中的各个音调将是不同的。 As described above, although the tones used in each row in each sector are the same, but every time a symbol corresponds to the same current symbol time, the first through fifth tones to respective tone It is different. 然而,当第一到第五码元时间中的各个码元时间均不相同时,第一到第五音调可以是相同的,也可以是不同的。 However, when the respective symbol time to the first time in the fifth symbol are not the same, the first through fifth tones may be the same, may be different.

[0165] 应该指出的是,在图16的实施方式中为每一个扇区发射了至少一个这样的导频信号,其中在所述扇区的相邻扇区中将会在用于发射所述导频信号的音调上发射零导频。 [0165] It should be noted that, in the embodiment of FIG. 16 transmitting at least one such pilot signals for each sector, which will be transmitted to adjacent sectors in the sector of the pilot transmission on null pilot tone signals. 此外还应该指出,在行1620中使用了描述为零小区的内容,其中所述内容有助于执行背景 It should also be noted that the use of content description 1620 of zero cell line, wherein the content execution facilitate BACKGROUND

噪声测量。 Noise measurement.

[0166] 图17是显示与图16相类似的三扇区实施方式的图表1700,其中在每一个扇区中发射的导频是依照功率电平并以更为通用的形式描述的。 [0166] FIG 17 FIG 16 is a similar graph 1700 three sector embodiment, in which the emission of each sector in accordance with the pilot power level and is described in a more general form. 图17的实施方式显示传输了15 个导频Pl〜P15,如果每一行对应的是不同的传输码元周期,那么每一个导频是在不同的码元时间发射的。 Embodiment 17 FIG. 15 shows the transfer frequency of the pilot Pl~P15, if each row corresponds to a different transmission symbol periods, each pilot is then transmitted in different symbol times. 如果所列举的每一个信号都是在相同的码元时间发射的,那么在这里将会显示三个不同的码元时间,其中每一个扇区的传输时间略微不同,但是所述传输时间基本对应的码元时间与其他扇区中使用的码元时间是相同的。 If each signal is transmitted are listed in the same symbol time, then this will show three different symbol time, wherein the transmission time of each sector slightly different, but substantially corresponding to said transmission time symbol time symbol time used by other sectors is the same.

[0167] 与图15和16的实例一样,每一行1712、1714、1716、1718、1720中的导频都是用相同音调发射的,但是不同的行可以对应于不同的音调。 [0167] Example FIGS. 15 and 16, like each line 1712,1714,1716,1718,1720 pilot tones are emitted by the same, but different rows may correspond to a different tone. 虽然如第一列1702中所列举的那样,在这里显示的是在5个不同的码元时间进行传输,但在顾及了扇区传输时间变化时, 在标题扇区上列举的各个矩形实际对应的是不同的码元时间,其中每一行的码元时间基本上是重叠的,并且在精确同步的情况下,所述码元时间是相等的。 Although, as listed in the first column 1702 above, it is shown here in five different transmission symbol period, but taking into account the time when the transmission sector, sector listed in the title of each rectangle corresponding to the actual is different symbol time, symbol time wherein each row is substantially overlapping, and in the case where precise synchronization, the symbol time is equal. 在第一到第十五个导频Pl〜P15中,每一个导频的功率电平都是在括号中表示的,例如,Pl的传输功率是pi。 In the first to fifteenth pilot Pl~P15, each of the power level of the pilot are shown in the parentheses, e.g., Pl is the transmission power pi. 虽然某些在如图16所示实例的情况中支持两个不同的功率电平,但是多个已知的功率电平同样也可以得到支持。 While some supports two different power levels in the case of the example shown in FIG. 16, but a plurality of known power levels may also be supported. 图17中的最后一行1720表示:在所有情况下,在各个扇区A、B和C 中依照这些导频信号功率电平并使用音调5所进行的零导频信号传输为零。 Figure 17 represents the last line 1720: In all cases, the respective sectors A, B and C in accordance with the pilot signal power level and the pilot tones using pilot zero five zero for pilot signal transmission.

[0168] 图18所示的图表1750描述的是在单个码元传输时段中在10个不同音调上所进行的信号传输。 The graph shown in [0168] FIG 181,750 describes a signal transmission in a single symbol transmission time period performed on 10 different tones. 在图18的实施方式中,0用于表示零导频信号,1用于表示处于已知的非零传输功率电平的导频,其中所述传输功率电平通常大于用以发射数据的功率电平。 In the embodiment of FIG. 18, 0 is used to represent zero pilot signal for indicating a non-zero at a known transmission power level of the pilot, wherein the transmission power level is typically greater than the power for transmitting data level. 在图表1750中使用了D来描述扇区A、B和C中的某个扇区所执行的数据传输。 D 1750 uses the chart to describe the data transmission sector A, B and C is performed by a sector. 数据信号D通常是在某个音调上以低于导频信号电平1的功率电平发射的,因此所述信号不会严重干扰相邻扇区中的导频。 Data signal D is at a certain pitch is typically below the level of the pilot signal power level of the transmission 1, so the signal does not seriously interfere with neighboring sector pilot. 在各个扇区中,数据通常是在所描述的码元时间在图18中并未显示的附加音调上发射的。 In each sector, data is typically transmitted in symbol time additional tones described not shown in FIG. 18. 在本发明的OFDM实施例中,在指定扇区中,由于附加数据音调与发射导频信号的音调是正交的,因此这种附加数据音调不会干扰导频音调。 Embodiment, the designated sector, since the additional tones and the data tones transmitted pilot signals are orthogonal in the OFDM embodiment of the present invention, and therefore does not interfere with the tone data such additional pilot tone. 图19描述的是通过操作无线终端来对从基站1200接收的导频信号进行处理的方法1800,其中所述导频信号是依照本发明而被发射的。 Is a method for guiding from the base station 1200 received pilot signal is processed by the operation of the wireless terminal 1800 described in FIG 19, wherein the pilot signal in accordance with the present invention is to be transmitted. 接收到的导频信号可以是使用已知的不同传输功率电平发射的导频信号,由此允许接收设备执行各种用于确定不同噪声成分的信号测量和计算,其中举例来说,所述噪声成分可以是背景噪声和扇区间干扰。 Received pilot signal may be used different known transmission power level of the transmission of the pilot signal, thereby allowing the receiving device to perform various measurements and calculations for determining a different noise signal component, wherein for example, the noise component can be inter-sector interference and background noise.

[0169] 方法1800始于开始节点1802,并且分别沿着以步骤1804和1808为开端的两条处理路径进行。 [0169] Method 1800 starts in start node 1802, and are processed along two paths to steps 1804 and 1808 are open-ended. 举例来说,如果在单个码元时间发射具有不同传输功率电平的多个导频信号, 那么这两条处理路径可以用并行方式实施,如果不同的码元传输时间使用相同音调但不同功率电平按顺序发射导频,那么这两条处理路径可以用串行方式实施。 For example, if the guide has a plurality of transmit different transmission power level of the pilot signal in a single symbol time, then it may be two parallel processing paths embodiments, different power if different symbol transmission time using the same tone but flat transmits pilot sequence, then the two processing paths may be serially embodiment.

[0170] 在步骤1804,无线终端1300对第一导频信号的幅度和相位中的至少一项进行测量,以便产生第一被测信号值,其中所述第一导频信号是用传输功率Pi发射的。 [0170] In step 1804, the amplitude and phase of the first pilot signal 1300 pairs of wireless terminals, at least one measured value to produce a first measured signal, wherein the first pilot signal with the transmission power Pi emissions. 然后,在步骤1806中将会使用第一被测信号值。 Then, a first measured signal value will be used at step 1806. 在步骤1806中,第一信道质量指示值是依照第一函数fl而从第一被测信号值中产生的,其中所述第一函数至少使用所述第一被测信号值作为输入。 In step 1806, a first channel quality indicator value is generated in accordance with a first function fl from the first measured signal value, wherein the first function using at least said first measured signal value as an input. 举例来说,函数Π产生的第一信道质量指示值可以是对应于所述第一接收导频信号的SNR值或是信号功率值。 For example, a first channel quality indicator value may be a function Π generated corresponding to the received pilot signal SNR value or the power value of the first signal. 在产生第一信道质量指示值的时候,除了第一被测信号值之外,函数fl还可以使用其他信号测量结果和/或其他信息作为输入。 When generating a first channel quality indicator value, in addition to a first measured signal value, the function may be used other fl signal measurements and / or other information as input. 并且操作将会从步骤1806 进行到步骤1812。 And the operation will be performed from step 1812 to step 1806.

[0171] 在某些实施例中,步骤1808可以与步骤1804并行执行,并且在所述步骤1808中, 无线终端1300将会测量第二导频信号的幅度和相位中的至少一项,其中所述第二导频信号是以不同于Pl的传输功率P2发射的。 [0171] In certain embodiments, step 1808 may be performed in parallel with step 1804, and in the step 1808, the amplitude and phase of the radio terminal 1300 will measure the second pilot signal of at least one, wherein said second pilot signal is different from the transmission power Pl and P2 emitted. 所述测量将会产生第二被测信号值,然后,在步骤1810中将会使用这个值。 The measurement will produce a second measured signal value, then, in step 1810 this value will be used. 在步骤1810,第二信道质量指示值是依照第二函数f2而从第二被测信号值中产生的,其中所述第二函数f2使用了第二被测信号值作为输入。 In step 1810, a second channel quality indicator value is generated according to the second function f2 from the second measured signal values, wherein the second function f2 using a second measured signal value as an input. 第二函数不同于所述第一函数,它至少使用了第二被测信号值作为输入,但是也可以使用其他信号测量结果作为输入。 The second function is different from the first function, using at least a second measured signal value as an input, but may also use other signal measurements as inputs. 在某些实施例中,第二函数产生的第二信道质量指示值是与第二导频信号相对应的SNR值,但在其他实施例中,它是一个与第二导频信号相对应的信号功率值,例如接收信号功率指示符。 In certain embodiments, the second channel quality indicator value generated by the second function is the SNR value corresponding to the second pilot signal, but in other embodiments, it is a signal with a frequency corresponding to the second pilot the signal power level, for example, received signal power indicator. 并且操作会从步骤1810进行到步骤1812。 And the operation will be performed from step 1812 to step 1810.

[0172] 在步骤1812,无线终端1300从上述被测信号值和/或其他边界位置指示值信息中确定无线终端相对于一个或多个扇区边界的位置。 [0172] In step 1812 the position, with the wireless terminal determines the wireless terminal 1300 from the measured signal value and / or other position indicating the boundary value information for one or more sector boundaries. 在步骤1814,通过使用相对边界位置和/或步骤1812中产生的其他信息,无线终端1300将会产生一个边界位置指示值1814,其中举例来说,所述指示值具有与表2中的列1所显示的某个值相对应的值。 In step 1814, additional information 1812 generated by using the relative position of the boundary and / or steps, the wireless terminal 1300 will have a value 1814 indicating the boundary position, which for example, has a value of 2 indicates the table column 1 a value corresponding to the displayed value. 在得到了来自步骤1806和1810的第一和第二信道质量值以及来自步骤1814的边界位置指示值的情况下, 操作将会进行到发射步骤1816,在该步骤中,所产生的信息将被回送到基站1200。 Obtained at the first and second channel quality values ​​from steps 1806 and 1810, and the case where the boundary position instruction value from step 1814, the operation will proceed to step 1816 transmit information in this step, is generated 1200 back to the base station.

[0173] 步骤1816包括将第一和第二信道质量指示值以及边界位置指示值作为一个或多个消息的一部分来进行传输。 [0173] Step 1816 includes first and second channel quality indicator value and a value indicating the boundary position as part of one or more messages for transmission. 在这里显示了两条可选的处理路径,其中在任何特定实施方式中都只使用一条单独的处理路径。 Here it shows two alternative processing paths, wherein only a single processing path used in any particular embodiment. 第一处理路径始于子步骤1820并且终止于步骤1826, 它表示的是在单个消息中包含了不同信息的情况。 First processing path begins with step 1820 and terminates at the sub-step 1826, it represents the case where different information contained in a single message. 第二处理路径始于步骤1830并且终止于步骤1840,它对应的是使用不同的消息来发射每一个不同的值的情况。 Second processing path begins with step 1830 and terminates in step 1840, which corresponds to transmit using a different message for each case of a different value. 在这种环境中将对消息进行概括性地解释,并且这些消息包含了用于传送所要传递的特定值的信号。 In this environment, the message will be explained in general terms, and these messages contain a specific value for a signal to be transmitted is transmitted.

[0174] 在步骤1820将会把第一信道质量指示值合并到第一消息。 [0174] In step 1820 will be the first channel quality indicator value into a first combined message. 然后,在步骤1822中将会把第二信道质量指示值合并到第一消息。 Then, in step 1822 will be the second channel quality indicator value is incorporated into the first message. 接下来,在步骤1拟4中会将边界位置指示值合并到第一消息。 Next, the boundary will be in the intended position instruction value combined in step 14 to the first message. 然后,在步骤1816,通过在无线通信链路上发射第一消息而将所述第一消息传递到基站1200。 Then, at step 1816, and the first message to the base station by transmitting first message 1200 over a wireless communication link. 在不同的实施例中,这个处理是用从无线终端向基站1200报告信道质量和/或其他反馈信息的控制信道的一个或多个专用时隙来完成的。 In various embodiments, this process is completed from the wireless terminal to the base station 1200 reporting the channel quality and / or other feedback information to a control channel or a plurality of dedicated time slots. 由于使用了无线终端专用时隙来报告信道质量和其他信息,因此,扇区中的其他无线终端或设备不会使用这个时隙。 The use of a dedicated time slot to the wireless terminal reporting channel quality and other information, so the other wireless terminal apparatus or sector does not use this time slot. 这样一来,通过使用专用时隙传输,可以避免发生冲突。 Thus, by using a dedicated transmission time slot, to avoid conflict. 此外,如果该信道是专门用于传递特定控制信息的,那么可以产生这些值并且在这些时隙中传送这些值,而不必发送用于指示所发射的值的含义的报头或其他信息。 In addition, if the channel is devoted to transmitting specific control information, then these values ​​may be generated and transmitted in the values ​​of these time slots, without having to send a value indicative of the meaning of the transmitted header information, or for another. 换句话说,基站1200将会知道在所用控制信道上发射的值具有某种预选格式,此外,举例来说,基站还知道所述值表示的是第一和第二信道质量指示值,其后跟随的是两比特的边界位置指示值。 In other words, the base station 1200 will know the value transmitted on the control channel having a certain preselected format, in addition, for example, the base station also knows the value represents that the first and second channel quality indicator value, and thereafter It is followed by a two-bit boundary position instruction value. 这样则可以将报头开销这类用于发射所述消息和/或数值的开销数量减至最小。 Thus the amount of overhead may be such header overhead for transmitting the message and / or to minimize the value. 在步骤1拟6,如果结束传输所生成的值,那么操作将会返回到步骤1804和1808,其中将会对新的导频信号执行信号测量,反馈处理也会随时间而继续重复进行。 In Step 1 intended 6, if the generated value of the transmission end, then operation returns to step 1804 and 1808, which will perform signal measurements on the new pilot, feedback process will continue to be repeated over time.

[0175] 步骤1830对应的是步骤1816中显示的可选值传输路径,在步骤1830中,第一信道质量指示值将会合并到第一消息中,其中所述第一消息可以是信号,随后所述第一消息会在步骤1832中传送到基站。 [0175] Step 1830 is an optional value corresponding to the transmission path shown in step 1816, in step 1830, a first channel quality indicator value will be incorporated into the first message, wherein the first message may be a signal, and then the first message will be sent to the base station in step 1832. 然后,在步骤1834,第二信道质量指示值将会合并到第二消息中,其中所述第二消息也可以是信号,并且所述第二消息是在步骤1836中传送的。 Then, at step 1834, a second channel quality indicator values ​​can be merged into the second message, wherein the second message may also be a signal, and the second message is transmitted at step 1836. 在步骤1838,边界位置指示值将会合并到第三消息中,然后,该消息会在步骤1840中传送到基站1200。 In step 1838, a value indicating the boundary position can be merged into the third message, then the message will be sent to the base station 1200 in step 1840. 与在步骤1拟6中传送合并消息的情况一样,在步骤1832、1836以及1840中发射的单个消息可以通过使用专门用于传递反馈消息的控制信道中的专用分段来进行传送。 As was the case in step 6 transmits a merge message proposed in the single message transmitted in step 1832,1836 and 1840 through the use of dedicated control channel segment dedicated for transmitting the feedback message to be transmitted. 操作将会从步骤1840进行到步骤1804和1808,并且用于产生信道反馈信息以及向基站1200 报告信息的处理则会随时间而重复进行。 Operation will proceeds from step 1804 to step 1840 and 1808, and for generating and processing channel information feedback report information to the base station 1200 will be repeated over time.

[0176] 图20所示的流程图描述的是一种依照本发明来操作基站(BQ 1200的方法,其中举例来说,所述方法用于发射导频音调并且接收和处理反馈信息,由此确定用以发射数据信号的功率电平。该方法始于步骤1902,其中基站1200将会加电并且开始运作。在步骤1904,与多扇区天线1205相耦合的基站发射机1204同时以同步方式并使用预定的功率电平和音调而将导频信号发射到多扇区小区例如1104中的各个扇区,例如SO 1106、Sl1108、S2 1110,这样一来,在将导频音调发射到小区1104中的各个扇区1106、1108、1110的过程中使用了相同的音调集合,并且在每一个扇区1106、1108、1110中,这些导频音调是在基本相同的时间发射的。步骤1904中的导频音调传输是通过使用导频音调功率电平信息1236以及音调信息1238并在导频信号产生和传输控制程序1230的指引下进行的。然后,操作将会 Flowchart [0176] Figure 20 describes a base station to operate in accordance with the present invention (Method BQ 1200, wherein for example, a method for transmitting pilot tones and receiving and processing the feedback information, whereby determining a power level for transmitting data signals. the method begins at step 1902, where the base station 1200 will be powered and operational. in step 1904 the base station transmitter 1204, with the multi-sector antenna 1205 coupled simultaneously in a synchronized manner and using a predetermined power level and the pilot tone signal transmitted to a multi-sector cell, for example, each sector 1104, for example, sO 1106, Sl1108, S2 1110, Thus, when the pilot tones transmitted to the cell guide 1104 1106,1108,1110 individual sectors in the process use the same tone set, and in each sector 1106,1108,1110, these pilot tones are transmitted substantially the same time. in step 1904 the guide pilot tone transmitted by using pilot tone power level information 1236 and tone information 1238 and under the guidance of the pilot signal generation and transmission control procedure 1230. then, the operation will be 行到步骤1906,其中BS 1200会从至少一个无线终端(WT) 1300接收消息,这些消息包含了一组信道质量指示值,例如第一和第二信道质量指示值,以及扇区边界位置信息。 所述消息是在基站1200中包含的接收信号处理程序1260的指引下接收的。在步骤1908, 在信道质量指示值提取模块1262的指引下,基站从源于无线终端1300的单个消息或多个消息中提取至少两个不同的信道质量指示值1250。在某些实施例中,每一个信道质量指示值都处于一个单独的消息中。但在其他实施例中,在来自WT1300的单个消息中将会包含多个信道质量指示值。接着,在步骤1910,在位置信息提取模块1264的控制下,基站1200从接收消息中提取用于指示无线终端1300相对多扇区小区边界的位置的位置信息,例如边界位置指示值。这个位置信息可以由WT1300在单独的消息中传送,也可以包含在某个 To step 1906, where the BS 1200 receives messages from the at least one wireless terminal (WT) 1300, these messages contain a set of channel quality indicator values, such as first and second channel quality indicator value, and sector boundary position information. the message is received at base station 1200 under the guidance contained in the reception signal processing program 1260 at step 1908, under the guidance of a channel quality indicator value extraction module 1262, a message from a single base station from the radio terminal 1300 or more message extracting at least two different channel quality indicator value 1250. in some embodiments, each channel quality indicator values ​​are in a separate message, but in other embodiments, in the single message from the WT1300 contains a plurality of channel quality indicator value. next, at step 1910, under the control of the position information extraction module 1264, base station 1200 extracts from the received message is used to indicate the relative position information 1300 of a multi-cell boundary sector of a wireless terminal, For example a value indicating the boundary position. this position information can be transmitted in a separate message WT1300, it may be included in a 有信道质量指示值的消息中。该位置信息可以识别WT1300是否接近扇区边界,并且可以识别所接近的是哪一个扇区边界,其中举例来说,该位置信息可以对从哪一个相邻扇区接收到具有与干扰有关的更高传输功率电平的扇区进行识别。在BS1200,从接收消息中提取的扇区边界信息将会保存在扇区边界位置信息1252中。 Message has channel quality indicator values. The location information may identify whether WT1300 close sector boundary, can be identified which are closest to a sector boundary, wherein for example, the location information may be a pair of adjacent sectors from which receiving a sector area having a higher transmission power level and the interference-related identification in BS1200, extracted from the received message information will be stored in the sector boundary position information 1252 in the sector boundary.

[0177] 操作继续进行到步骤1912,在传输功率计算程序12¾的指引下,基站1200至少从第一和第二信道质量指示值1250中计算在无线终端1300上实现预期信噪比所需要的传输功率量,其中所述第一和第二信道质量指示值1250是从无线终端1300接收的。 [0177] Operation proceeds to step 1912, under the guidance of the transmission power calculating 12¾ program, at least the base station 1200 calculates the SNR to achieve the desired transmission on the wireless terminal 1300 from the required first and second channel quality indicator values ​​1250 amount of power, wherein said first and second channel quality indicator values ​​1250 is received from the wireless terminal 1300. 在步骤1914,基站调度器模块1225通过操作来为无线终端1300产生调度判定。 In step 1914, the base station scheduler module 1225 generates scheduled is determined by the operation of the wireless terminal 1300. 在子步骤1916,基站调度器1225根据所确定的SNR来为WT1300做出判定,举例来说,BS1200可以为WT1300 调度信道上的分段,其中所述分段的传输功率电平能使WT1300的接收SNR超出所用数据速率和编码方案的最小可接受电平。 In sub-step 1916, the base station scheduler 1225 according to the determined SNR for the WT1300 to make the determination, for example, the BS 1200 may be segmented WT1300 scheduled channel, wherein the transmission power level of said segment enables WT1300 the received SNR exceeds a minimum acceptable level data rate and coding scheme used. 在子步骤1918,BS1200的调度器1225根据扇区边界位置信息1252来为WT1300做出判定,举例来说,对一个被确定为接近扇区边界的WT1300来说,基站1200可以为其分配信道分段,其中在相邻扇区中,与所述信道分段相对应的分段不具有传输功率。 In sub-step 1918, BS1200 scheduler 1225 according to the sector boundary position information 1252 to make WT 1300 is determined, for example, for a WT 1300 is approaching is determined as a sector boundary, the base station 1200 may assign sub-channels segments, wherein in adjacent sectors, and the channel segment corresponding to the segment having no transmission power. 继续到步骤1920,在信令程序12¾的指引下,BS1200的发射机1205会在预定时间使用从接收到的所述至少两个信道质量指示值1250中确定的传输功率来向所述WT1300发射信号,其中所述信号可以包括由编码器1214编码的用户数据1244。 Continuing to step 1920, under the guidance of 12¾ signaling procedure, the transmitter will use 1205 BS1200 transmission power determined from said received at least two channel quality indicator values ​​1250 at a predetermined time to transmit signals to the WT1300 wherein the signal may comprise data encoded by the encoder 1214 1244 users.

[0178] 然后,操作将会从步骤1920返回到步骤1904,并且所述方法将会重复执行。 [0178] Then, the operation returns from step 1920 to step 1904, and the method will be performed repeatedly. 在步骤1904,基站1200将会定期以同步方式而将导频信号反复发射到多扇区小区中的各个扇区。 In step 1904, the base station 1200 will periodically synchronized manner the pilot signal is repeatedly transmitted to each sector of a multi-sector cell. 然而,不同的无线终端1300可以在不同时间和/或以不同速率发射包含了信道质量指示值1250和扇区边界位置信息1252的集合的消息,其中所述时间和/或速率取决于诸如无线终端工作状态之类的因素,例如开启,保持、休眠。 However, different wireless terminal 1300 may comprise a channel quality indicator values ​​1250 and 1252 of the message collection sector boundary position information at different times and / or transmit at different rates, wherein the time and / or rate depends on such as a wireless terminal factors like the work of the state, such as open, hold, sleep.

[0179] 此外,本发明还涉及机器可读介质,其中所述介质包含了机器可执行指令,由此可以对处理器或其他设备进行控制,以便依照本发明的一个或多个不同方法来执行处理,其中所述介质可以是存储器、光盘等等,机器可执行指令可以是软件模块或命令。 [0179] The present invention further relates to machine-readable medium, wherein said medium comprises machine-executable instructions, which may be controlled processor or other devices, in order to perform in accordance with one or more different methods according to the present invention process, wherein the medium may be a memory, optical disks, etc., the machine-executable instructions may be software modules or commands. 本发明的方法和设备的不同特征可以在各种通信系统中使用,其中包括但不局限于OFDM、CDMA以及其他类型的通信系统。 The method and apparatus of the various features of the present invention may be used in various communication systems, including but not limited to OFDM, CDMA and other types of communication systems.

Claims (35)

1. 一种在多扇区小区中发射导频信号的方法,其中所述多扇区小区至少包括第一扇区和第二扇区,并且第二扇区与所述第一扇区相邻,所述方法包括:在第一码元时间期间,在所述第一扇区中使用第一音调来发射具有第一预选传输功率的第一导频信号;以及在第二码元时间期间,在所述第二扇区中使用所述第一音调来发射具有第二预选传输功率的第二导频信号,其中所述第二码元时间与所述第一码元时间重叠,并且所述第二预选传输功率不同于所述第一预选传输功率。 CLAIMS 1. A method of transmitting pilot signals in a multi-sector cell in which the multi-sector cell includes at least a first sector and a second sector and a second sector adjacent to the first sector the method comprising: during a first symbol time code, to transmit a first pilot signal having a first preselected transmission power using the first tone in the first sector; and during a second symbol time, in the second sector using the first tone is transmitted in a second guide having a second preselected pilot signal transmission power, wherein the second symbol time and the first symbol time overlap, and the second preselected preselected transmission power different from the first transmission power.
2.权利要求1的方法,其中第二预选传输功率是零,所述第二导频信号是零导频信号。 2. The method of claim 1, wherein the second preselected transmission power is zero, the second pilot signal pilot signal is zero.
3.权利要求1的方法,还包括:在第三码元时间期间,在所述第一扇区中使用第二音调来发射具有第三预选传输功率的第三导频信号;以及在第四码元时间期间,在所述第二扇区中使用所述第二音调来发射具有第四预选传输功率的第四导频信号,其中所述第四码元时间与所述第三码元时间相重叠,并且第四预选传输功率不同于所述第三预选传输功率。 The method of claim 1, further comprising: during a third symbol time, to transmit a third signal having a third preselected pilot transmit power used for the first sector on a second pitch; and a fourth symbol time period, using the second tone in a second sector of the fourth guide has transmitted a fourth preselected pilot signal transmission power, wherein the fourth symbol time and the third symbol time overlap, and the fourth transmission power different than the third preselected preselected transmission power.
4.权利要求3的方法,其中所述第二预选传输功率和所述第三预选传输功率是相同的。 The method of claim 3, wherein said second and said third preselected preselected transmission power is the same transmission power.
5.权利要求4的方法,其中所述第二预选传输功率为零,所述第二和第三导频信号是零导频信号。 The method of claim 4, wherein said second preselected transmission power is zero, the second and third pilot signals are pilot signals zero.
6.权利要求3的方法,其中所述第一和第三码元时间是相同的;以及其中所述第一和第二音调是不同的。 The method of claim 3, wherein the first and the third symbol times are the same; and wherein said first and second tones are different.
7.权利要求3的方法,其中所述第一和第三码元时间并不重叠;以及其中所述第一和第二音调是相同的。 The method of claim 3, wherein the first and the third symbol time do not overlap; and wherein said first and second tones are the same.
8.权利要求3的方法,其中还包括:在第五码元时间期间,在所述第一扇区中使用第三音调来发射具有第五预选传输功率的第五导频信号;以及在第六码元时间期间,在所述第二扇区中使用所述第三音调来发射具有所述第五预选传输功率的第六导频信号,其中所述第六码元时间与所述第五码元时间重叠。 The method of claim 3, further comprising: during a fifth symbol time, using a third pitch in the first sector to transmit the fifth guide has a fifth preselected transmission power of a pilot signal; and second during the cell time six yards, using a tone in the second and the third sector to transmit the fifth guide has a sixth preselected pilot signal transmission power, wherein the sixth and the fifth symbol time symbol time overlap.
9.权利要求8的方法,其中所述第二、第三和第五预选传输功率是相同的。 9. The method of claim 8, wherein said second, third and fifth preselected transmission power is the same.
10.权利要求9的方法,其中所述第二预选传输功率为零,并且第二、第三、第五和第六导频信号是零导频信号。 10. The method of claim 9, wherein said second preselected transmission power to zero, and the second, third, fifth and sixth pilot signal is a null pilot signal.
11.权利要求8的方法,其中所述第一、第二和第三音调是相同的;以及其中所述第一、第三和第五码元时间是不同的。 11. The method of claim 8, wherein said first, second, and third tones are the same; and wherein the first, third and fifth symbol time is different.
12.权利要求8的方法,其中所述第一、第三和第五码元时间是相同的;以及其中所述第一、第二和第三音调是不同的。 12. The method of claim 8, wherein said first, third and fifth symbol times are the same; and wherein said first, second, and third tones being different.
13.权利要求8的方法,其中所述第一、第四和第五预选传输功率是相同的。 13. The method of claim 8, wherein said first, fourth and fifth preselected transmission power is the same.
14.权利要求13的方法,其中所述第一、第四和第五预选传输功率是非零的;以及其中所述第二和第三预选传输功率为零。 14. The method of claim 13, wherein said first, fourth and fifth preselected transmission power is non-zero; and wherein said second and third preselected transmission power to zero.
15.权利要求8的方法,还包括:周期性地重复执行所述发射步骤中的每一个步骤,以便形成所述发射步骤的预定重复序列。 15. The method of claim 8, further comprising: periodically repeating said transmitting step performed in each step, so as to form a predetermined sequence repeated in the transmitting step.
16.权利要求12的方法,还包括:在第七码元时间期间,在所述第一扇区中使用第四音调来发射具有第七预选传输功率的第七导频信号,其中所述第七预选传输功率不同于所述第五预选传输功率;以及在第八码元时间期间,在所述第二扇区中使用所述第四音调来发射具有第八预选传输功率的第八导频信号,其中所述第八码元时间与所述第七码元时间重叠,并且第八预选传输功率与所述第七预选传输功率是相同的。 Wherein the first time during the seventh symbol, using a fourth tone in the first sector to transmit a seventh guide has a seventh preselected pilot signal transmission power,: 16. The method of claim 12, further comprising seven preselected transmission power is different from the fifth preselected transmission power; and during an eighth symbol time, using a tone in the second and the fourth sector to transmit eighth eighth guide has a preselected frequency transmission power signal, wherein said eighth symbol time and the symbol time overlap seventh, eighth and seventh preselected preselected transmission power to the transmission power is the same.
17.权利要求16的方法,其中所述第一、第二、第三和第四音调是不同的;以及其中所述第一、第三、第五和第七码元时间是相同的。 17. The method of claim 16, wherein said first, second, third and fourth tones are different; and wherein the first, third, fifth, and seventh symbol times are the same.
18.权利要求16的方法,其中第一、第二、第三和第四音调是相同的;以及其中所述第一、第三、第五和第七码元时间是不同的。 18. The method of claim 16, wherein the first, second, third and fourth tones are the same; and wherein the first, third, fifth, and seventh symbol time is different.
19.权利要求16的方法,其中第一、第四和第七预选传输功率是相同的。 19. The method of claim 16, wherein the first, fourth and seventh preselected transmission power is the same.
20.权利要求19的方法,其中第二、第三和第五预选传输功率为零;以及其中所述第一、第三、第五和第七码元时间是相同的。 20. The method of claim 19, wherein the second, third, and fifth preselected transmission power to zero; and wherein the first, third, fifth, and seventh symbol times are the same.
21.权利要求16的方法,还包括:根据预选重复图形来重复发射步骤的每一个步骤。 21. The method of claim 16, further comprising: repeating each step of the transmitting step according to a preselected pattern repeat.
22.权利要求8的方法,其中所述多扇区小区还包括第三扇区,并且所述第三扇区与所述第二扇区相邻,所述方法还包括:在第九码元时间期间,在所述第三扇区中使用所述第一音调来发射第九导频信号,所述第九码元时间与所述第一和第二码元时间重叠,并且所述第九导频信号使用与所述第一导频信号相同的传输功率发射。 22. The method of claim 8, wherein said multi-sector cell further comprises a third sector, the third sector and adjacent to the second sector, the method further comprising: a ninth symbol during the time, in the third sector of the first tone transmitting pilot signals of the ninth, the ninth time and the first symbol and the second symbol time overlap, and the ninth pilot signal using the first pilot signal transmitting the same transmission power.
23.权利要求1的方法,其中所述多扇区小区还包括第三扇区,并且所述第三扇区与所述第二扇区相邻,所述方法还包括:在第九码元时间期间,在所述第三扇区中使用所述第一音调来发射第九信号,该信号是控制和数据导频信号之一,并且所述第九码元时间与所述第一和第二码元时间重叠。 23. The method of claim 1, wherein said multi-sector cell further comprises a third sector, the third sector and adjacent to the second sector, the method further comprising: a ninth symbol during the time, in the third sector of the first tone to transmit a ninth signal, which is one of the pilot data and the control signal, and said ninth symbol time with the first and second two yards symbol time overlap.
24.权利要求22的方法,还包括:在第十码元时间期间,在所述第三扇区中使用所述第二音调来发射第十导频信号,所述第十码元时间与所述第三和第四码元时间重叠,并且所述第十导频信号使用与所述第三导频信号相同的传输功率发射。 24. The method of claim 22, further comprising: a tenth symbol time period, using the second tone in said third sector to transmit a pilot signal tenth, the eleventh and the symbol time said third and fourth symbol time overlap, and the tenth pilot signal using the third pilot signal transmitted the same transmission power.
25.权利要求M的方法,还包括:在第十一码元时间期间,在所述第三扇区中使用所述第三音调来发射第十一导频信号,所述第十一码元时间与所述第五和第六码元时间重叠,所述第十一导频信号用第十一预选传输功率发射,所述第十一预选传输功率与用来发射第五和第六导频信号的第五预选传输功率相同。 M 25. The method of claim, further comprising: an eleventh symbol time period, using the third pitch of the third sector in the eleventh to transmit a pilot signal, the eleventh symbol fifth and sixth time and the symbol time overlap, the pilot signal transmission eleventh with an eleventh pre-transmission power, and the eleventh preselected transmission power to transmit the fifth and sixth pilot a fifth preselected same transmission signal power.
26.权利要求25的方法,还包括:周期性地重复所述发射步骤中的每一个步骤。 26. The method of claim 25, further comprising: periodically repeating the step of each of said transmitting step.
27. 一种在多扇区小区中发射导频信号的方法,其中所述多扇区小区至少包括第一、第二和第三扇区,并且在所述小区中,第一、第二和第三扇区中的每一个与所述第一、第二或第三扇区中的至少另一个扇区相邻,所述方法包括:至少在一部分第一码元时间中:在第一扇区中使用第一预选传输功率在第一音调上发射第一导频信号; 在第二扇区中使用第二预选传输功率在第一音调上发射第二导频信号,其中所述第二预选传输功率不同于所述第一预选传输功率;以及在第三扇区中使用第三预选传输功率在第一音调上发射第三导频信号。 27. A transmitting method in a multi-sector cell pilot signals, wherein said multi-sector cell includes at least a first, a second and a third sector, and in the cell, the first, second, and a third sector in each sector of the at least one other first, second or third neighboring sectors, the method comprising: at least a portion of the first symbol in time: the first fan region using a first preselected transmission power transmitting first pilot signals on a first pitch; transmitting second pilot signals on a second preselected first tone transmission power in the second sector, wherein said second preselected different from said first preselected transmission power of transmission power; and a preselected transmission power using a third sector in a third transmit the third signal on the first pilot tone.
28.权利要求27的方法,其中第一和第三预选传输功率是非零的并且是相同的。 28. The method of claim 27, wherein the first and third preselected transmission power is non-zero and the same.
29.权利要求28的方法,还包括: 至少在一部分第二码元时间中:在第一扇区中使用第四预选传输功率在第二音调上发射第四导频信号; 在第二扇区中使用第五预选传输功率在第二音调上发射第五导频信号;以及在第三扇区中使用所述第五预选传输功率在第二音调上发射第六导频信号。 29. The method of claim 28, further comprising: at least a portion of the second symbol time: a fourth preselected transmission power in the first sector to transmit a fourth signal to the second pilot tones; in a second sector the fifth preselected transmission power used in transmitting the fifth signal on the second pilot tones; and using the transmission power in the fifth preselected third sector transmitting the pilot signal on the sixth second tone.
30.权利要求四的方法,其中所述第一和第二码元时间是相同的;其中所述第一、第三和第四预选传输功率是相同的;以及其中所述第二、第五和第六导频信号是以零功率发射的零导频信号。 30. The method as claimed in claim IV, wherein said first and second symbol times are the same; wherein said first, third and fourth preselected transmission power is the same; and wherein said second, fifth zero derivative and the sixth pilot signal transmitted power is zero pilot signals.
31.权利要求四的方法,还包括: 至少在一部分第三码元时间中:在第一扇区中使用所述第一预选传输功率在第三音调上发射第七导频信号; 在第二扇区中使用第八预选传输功率在第三音调上发射第八导频信号;以及在第三扇区中在第三音调上发射数据码元。 31. The method as claimed in claim four, further comprising: at least a portion of the third symbol in time: the first pre-selected transmission power used in the first sector transmit a pilot signal on the seventh third tones; in the second sector transmitter using the transmission power of the eighth eighth preselected pilot signal on the third pitch; and transmitting data symbols on a third tone in a third sector.
32.权利要求31的方法,其中第一、第二和第三音调是不同的,以及其中第一、第二和第三码元时间是相同的。 32. The method of claim 31, wherein the first, second, and third tones being different, and wherein the first, second and third symbol times are the same.
33. 一种用于在多扇区小区中发射导频信号的设备,所述设备包括: 发射机;用于对所述发射机进行控制以在第一码元时间期间在第一扇区中使用第一音调发射具有第一预选传输功率的第一导频信号的装置;以及用于对所述发射机进行控制以在第二码元时间期间在第二扇区中使用所述第一音调发射具有第二预选传输功率的第二导频信号的装置,其中所述第二码元时间与所述第一码元时间重叠,并且所述第二预选传输功率不同于所述第一预选传输功率。 33. An apparatus for transmitting pilot signals in a multi-sector cell, the apparatus comprising: a transmitter; for controlling the transmitter to the first sector during a first symbol time a first guide means using a first tone having a first preselected pilot signal transmission power transmitting; and means for controlling the transmitter using the first tone in the second sector during a second symbol time a second pilot signal transmitting means having a second preselected frequency transmission power, wherein the second symbol time and the symbol time overlapping the first and the second transmission power different from said first preselected preselected transmission power.
34.权利要求33的设备,还包括:用于对所述发射机进行控制以在第三码元时间期间在所述第一扇区中使用第二音调来发射具有第三预选传输功率的第三导频信号的装置;以及用于对所述发射机进行控制以在第四码元时间期间在所述第二扇区中使用所述第二音调来发射具有第四预选传输功率的第四导频信号的装置,其中所述第四码元时间与所述第三码元时间重叠,并且所述第四预选传输功率不同于所述第三预选传输功率。 For controlling the first transmitter to the second tone used in the first sector during the third symbol having a third preselected time to transmit transmission power: 34. The apparatus as claimed in claim 33, further comprising It means three pilot signal; and a fourth for controlling the transmitter to use the second pitch in the second sector during the fourth symbol time to transmit a fourth preselected transmission power It means the pilot signal, wherein the fourth symbol time and the third symbol time overlap, and the fourth transmission power different than the third preselected preselected transmission power.
35.权利要求34的设备,其中所述第二预选传输功率与所述第三预选传输功率是相同的。 35. The apparatus as claimed in claim 34, wherein said second preselected preselected transmission power to the third transmission power is the same.
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US10/648,766 US7218948B2 (en) 2003-02-24 2003-08-25 Method of transmitting pilot tones in a multi-sector cell, including null pilot tones, for generating channel quality indicators
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