CN101785213B - The method and apparatus of plurality of relay stations in wireless communication network combined relaying - Google Patents

Abstract

A kind of new combined relaying scheme is provided. N road signal in the signal of common M road is weighted processing by the multiple relay stations participating in combined relaying, generates the signal to be sent of the not weighted process of signal to be sent and M-N road of the weighted process in N road, combines and send to next-hop device. Accordingly, this technical scheme is different from the mode of simple open loop of the prior art or closed loop, it is achieved that the combination of the two. With compared with the open loop approach of ADSTC, this technical scheme is obtained in that array gain, and systematic function will more preferably; And compared with the closed-loop fashion that precoding in a distributed manner is example, the expense that control signaling is brought is less, and the determination process of Base-Band Processing process and weight coefficient is more simple.

Description

The method and apparatus of plurality of relay stations in wireless communication network combined relaying

Technical field

The present invention relates to wireless relay network, the many relay stations associating down hop equipment in wireless relay network that particularly relates to sends method and the device of signal.

Background technology

Within a wireless communication network, the introducing of relay station contributes to the overlay area of Extended Cell and improves the data throughput of community. Along with the development of relaying technique, occur in that combined relaying scheme, so-called combined relaying, namely multiple relay station associating down hop equipment send signal. Utilizing combined relaying technology, the multiple transmitting antennas being distributed on multiple relay station can realize the gain such as spatial reuse, space diversity. Because there being above-mentioned advantage, combined relaying occupies very important status in junction network.

In prior art, there are two kinds of schemes for realizing many relay stations combined relaying, are called open loop approach and closed-loop fashion.

Most typically ground adapter distribution Space Time Coding (ADSTC) as shown in Figure 1a in open loop approach, wherein, two relay stations are respectively furnished with a transmitting antenna. Being transmitted as example with upward signal, relay station B, C, after receiving the signal that upper hop equipment (such as, mobile terminal A) is sent, adopt Alamoti coded system, and relay station B, C are respectively to modulation symbol sequence { X₁, X₂, X₃... carry out Space Time Coding, and down hop equipment (such as, base station D) sends signal in the following manner in units of each two symbol and each two time slot:

In first time slot, relay station B send X₁, relay station C sends X₂;

In second time slot, relay station B send-X₂ ^*, relay station C sends X₁ ^*;

In 3rd time slot, relay station B send X₃, relay station C sends X₄;

In 4th time slot, relay station B send-X₄ ^*, relay station C sends X₃ ^*; Etc..

Being not difficult to find out, based on ADSTC, relay station B, C constitute a distributed testing system system, it is possible to obtain space diversity gain. But, the signal that each relay station sends does not use any channel information, thus, it is impossible to obtaining array gain (arraygain), systematic function has the space of improvement further. Additionally, due to the Alamouti matrix that encoder matrix is 2x2 that ADSTC adopts, therefore it is only applicable to two relay stations and carries out combined relaying and each relay station only has the situation of a transmitting antenna. In other words, if participating in the relay station more than two of combined relaying, then the relay station having more is by idle; If participating in the transmitting antenna sum of each relay station configuration of combined relaying more than 2, then the antenna having more is also by idle.

Most typically ground distributed precoding (distributedprecoding) as shown in Figure 1 b in closed-loop fashion, wherein, two relay stations are respectively furnished with a transmitting antenna. Still being transmitted as example with upward signal, relay station B ', C ', after receiving the upper hop equipment signal that such as mobile terminal A ' sends, use the pre-coding matrix of a 2x2 to X₁, X₂Carry out precoding. Wherein, the generation of pre-coding matrix depends on channel related information (e.g., the channel response between each relay station and base station D '), and the calculating of this matrix is generally completed by base station, more corresponding precoding coefficients is notified corresponding relay station.

Precoding is that the closed-loop fashion shortcoming of example is as follows in a distributed manner:

-owing at least needing the corresponding precoding coefficients in transmitting pre-encoding matrix between base station, relay station, therefore, more control signaling consumption can be caused on channel;

-relay station needs to perform complex Base-Band Processing, and adds the process complexity of receiving terminal accordingly.

Visible, it is necessary to a kind of combined relaying scheme more optimized is to solve the problems referred to above of the prior art.

Summary of the invention

Performance for solving open loop approach of the prior art has much room for improvement and the signaling consumption of closed-loop fashion has the problems such as to be reduced, the invention provides a kind of new combined relaying scheme, wherein, N road signal to be sent in the signal to be sent of common M road is weighted processing by the multiple relay stations participating in combined relaying, after generating the signal to be sent of the not weighted process of signal to be sent and M-N road of the weighted process in N road, combine and send to next-hop device. Accordingly, the present invention is different from the mode of simple open loop of the prior art or closed loop, it is achieved that the combination of the two.

Preferably, the channel related information that described weighting processes between weighter factor (coefficient) and described each relay station and described next-hop device used is associated, thus being conducive to improving the received signal quality at next-hop device place.

For realizing above-mentioned technical purpose, according to the first aspect of the invention, provide a kind of method in the multiple antennas relay station of wireless relay network for combining down hop equipment transmission signal with other relay station, wherein, comprise the following steps: weighted signal is weighted processing to utilize weight coefficient that one or more in described multiple signals is treated, to generate the signal to be sent of one or more weighted process; The signal to be sent of the signal to be sent of one or more weighted process described and the not weighted process in all the other each roads is sent to described next-hop device.

According to the second aspect of the invention, provide a kind of method in the single antenna relay station of wireless relay network for combining down hop equipment transmission signal with other relay station, wherein, comprise the following steps: utilize weight coefficient to treat weighted signal and be weighted, to generate the signal to be sent of a weighted process in road, wherein, described weight coefficient maximizes for the received signal quality at real presently described next-hop device place; The signal to be sent of described weighted process is sent to described next-hop device.

According to the third aspect of the invention we, provide a kind of method in the base station of wireless relay network for controlling multiple relay station associating down hop equipment transmission signal, wherein, comprising the following steps: provide weight coefficient relevant information for the one or more relay stations in the plurality of relay station, described weight coefficient relevant information is weighted processing for being treated weighted signal by the one or more relay station.

According to the fourth aspect of the invention, provide a kind of the first associating dispensing device sending signal in the multiple antennas relay station of wireless relay network for combining down hop equipment with other relay station, wherein, including: the first weighting device, for utilizing weight coefficient that one or more in multiple signals is treated, weighted signal is weighted processing, to generate the signal to be sent of one or more weighted process; First sender unit, for sending the signal to be sent of one or more weighted process described and the signal to be sent of the not weighted process in all the other each roads to described next-hop device.

According to the fifth aspect of the invention, provide a kind of the second associating dispensing device sending signal in the single antenna relay station of wireless relay network for combining down hop equipment with other relay station, wherein, including: the second weighting device, it is weighted for utilizing weight coefficient to treat weighted signal, to generate the signal to be sent of a weighted process in road, wherein, described weight coefficient maximizes for the received signal quality at real presently described next-hop device place; Secondary signal dispensing device, for sending the signal to be sent of described weighted process to described next-hop device.

According to the sixth aspect of the invention, provide a kind of control device sending signal in the base station of wireless relay network for controlling multiple relay station associating down hop equipment, it is characterized in that, including the device for providing weight coefficient relevant information for the one or more relay stations in the plurality of relay station, described weight coefficient relevant information is weighted processing for being treated weighted signal by the one or more relay station.

According to the seventh aspect of the invention, provide a kind of method combining down hop equipment transmission signal for many relay stations in wireless relay network, it is characterized in that, comprise the following steps: the N road in the signal of M road is treated that weighted signal is weighted processing by the one or more relay stations in the plurality of relay station, the signal to be sent of the not weighted process of signal to be sent and M-N road to generate the weighted process in N road, wherein, M is the positive integer more than 1, and N is the positive integer more than zero less than M; The signal to be sent of the not weighted process of signal to be sent and described M-N road of the weighted process in described N road is sent to described next-hop device by the plurality of relay station.

According to the eighth aspect of the invention, provide a kind of in the network equipment of wireless relay network for being combined, by many relay stations, the method that the signal of transmission detects to what receive, it is characterized in that, comprise the following steps: respectively organize, based on present networks equipment and the plurality of relay station, the channel related information mating between antenna, and relay station, for treating the weight coefficient that weighted signal is weighted, mates, for described each group, the signal generation equivalent channels relevant information that antenna sends accordingly; The described equivalent channels relevant information generated is utilized to be combined the signal of transmission by the plurality of relay station detect what receive.

According to the ninth aspect of the invention, provide a kind of in the network equipment of wireless relay network for being combined, by many relay stations, the signal supervisory instrument that the signal of transmission detects to what receive, it is characterized in that, including: generation device of equal value, for mating the channel related information between antenna based on present networks equipment with each group of the plurality of relay station, and relay station, for treating the weight coefficient that weighted signal is weighted, mates, for described each group, the signal generation equivalent channels relevant information that antenna sends accordingly; Detecting device, for utilizing the described equivalent channels relevant information of generation to be combined the signal of transmission by the plurality of relay station detect what receive.

Compared with prior art, advantage is fairly obvious for technical scheme provided by the present invention, is embodied as:

1., with compared with the open loop approach of ADSTC, the present invention can make combined relaying system obtain array gain, and therefore in the bit error rate (BER) and Packet Error Ratio, (PER) performs better; Further, this programme is applicable to any number of relay stations and participates in combined relaying, and each relay station can configure the situation of any number of transmitting antenna.

2., compared with the closed-loop fashion that precoding in a distributed manner is example, the expense that in the present invention, control signaling is brought is less; Further, the determination process of Base-Band Processing process and weight coefficient becomes more simple, thus advantageously reducing the process complexity of relay station, base station, terminal.

Accompanying drawing explanation

Reading the following detailed description to non-limiting example by referring to accompanying drawing, the other features, objects and advantages of the present invention will become more apparent upon.

Fig. 1 a illustrates the combined relaying network diagram in prior art based on open loop approach;

Fig. 1 b illustrates the combined relaying network diagram in prior art based on closed-loop fashion;

Fig. 2 illustrates the system approach flow chart sending signal within a wireless communication network for realizing many relay stations associating down hop equipment according to a specific embodiment of the present invention;

Fig. 3 is the combined relaying network diagram of a specific embodiment according to the present invention, and wherein, two relay station associating down hop equipment send signal, and said two relay station is respectively arranged with a transmitting antenna;

Fig. 4 a-4b is the combined relaying network diagram of a specific embodiment according to the present invention, and wherein, two relay station associating down hop equipment send signal, and a relay station is furnished with two transmitting antennas, and another relay station is only furnished with a transmitting antenna;

Fig. 5 is the combined relaying network diagram of a specific embodiment according to the present invention, and wherein, two relay station associating down hop equipment send signal, and said two relay station is respectively arranged with two transmitting antennas;

Fig. 6 a-Fig. 6 d is the combined relaying network diagram of a specific embodiment according to the present invention, and wherein, three relay station associating down hop equipment send signal.

Fig. 7 illustrates the method flow diagram sending signal in the multiple antennas relay station of wireless relay network for combining down hop equipment with other relay station according to a specific embodiment of the present invention;

Fig. 8 illustrates the method flow diagram sending signal in the single antenna relay station of wireless relay network for combining down hop equipment with other relay station according to a specific embodiment of the present invention;

Fig. 9 illustrates the method flow diagram sending signal in the base station of wireless relay network for controlling multiple relay station associating down hop equipment according to a specific embodiment of the present invention;

Figure 10 illustrates the first associating dispensing device block diagram sending signal in the multiple antennas relay station of wireless relay network for combining down hop equipment with other relay station according to a specific embodiment of the present invention;

Figure 11 illustrates the second associating dispensing device block diagram sending signal in the single antenna relay station of wireless relay network for combining down hop equipment with other relay station according to a specific embodiment of the present invention;

Figure 12 illustrates the control device block diagram sending signal in the base station of wireless relay network for controlling multiple relay station associating down hop equipment according to a specific embodiment of the present invention;

Figure 13 illustrate according to a specific embodiment of the present invention in the network equipment of wireless relay network for being combined, by many relay stations, the method flow diagram that the signal of transmission detects to what receive;

Figure 14 illustrate according to a specific embodiment of the present invention in the network equipment of wireless relay network for being combined, by many relay stations, the signal supervisory instrument block diagram that the signal of transmission detects to what receive.

Wherein, same or analogous accompanying drawing labelling represents same or analogous device (module) or step.

Detailed description of the invention

Hereinafter, without loss of generality, all illustrating with the example that is transmitted as of upward signal, those skilled in the art are according to herein uplink signal transmissions being described, it is possible to apply the present invention among downstream signal transmission without creative work.

Fig. 2 illustrates the system approach flow chart sending signal within a wireless communication network for realizing many relay stations associating down hop equipment according to a specific embodiment of the present invention. Referring to Fig. 2 and respectively in connection with Fig. 3-Fig. 5 d, present invention is described.

Fig. 3 is the combined relaying network diagram of a specific embodiment according to the present invention, and wherein, two relay station 1,2 associating down hop equipment and base station 0 send signal, and said two relay station is all only furnished with a transmitting antenna, simultaneously, it is assumed that base station 0 is furnished with N_rRoot reception antenna, wherein, N_rFor the positive integer more than or equal to 1.

In this example, in step sl, base station 0 is for needing the relay station 2 that signal is weighted process to provide weight coefficient b. Preferably, the generation of b is based on following criterion: the received signal quality realizing base station 0 place maximizes. It will be appreciated by those skilled in the art that described received signal quality can be characterized by one or more in the following information: received signal power (e.g., RSSI and received signal strength indicator information); The ratio (SNR) of received signal power and noise power; The ratio (SIR) of received signal power and interfering signal power; The ratio (SINR) of received signal power and noise power, interfering signal power sum.

For achieving the above object, described weight coefficient b can be generated based on following formula (1)

$b=\left\{\begin{array}{cc}1,& \mathrm{Re}\left\{\underset{i=1}{\overset{N_r}{\mathrm{\&Sigma;}}}{h}_{i,\mathrm{RS}1}^{*}{h}_{i,\mathrm{RS}2}\right\}\&GreaterEqual;0\\ -1,& \mathrm{Re}\left\{\underset{i=1}{\overset{N_r}{\mathrm{\&Sigma;}}}{h}_{i,\mathrm{RS}1}^{*}{h}_{i,\mathrm{RS}2}\right\}<0\end{array}\right.$ I=1 ..., N_r(1)

Wherein, h_{I, RS1}With h_{I, RS2}Representing the channel related information (e.g., channel fading coefficient) between relay station 1 and transmitting antenna and i-th reception antenna of base station 0 of relay station 2 respectively, " Re " expression takes a real, and " * " represents that conjugate operation accords with. It will be appreciated by those skilled in the art that formula (1) provides a mode determining b with being merely illustrative, protection scope of the present invention is not limited by formula (1).

In step S2, mobile terminal A sends the signal to each relay station place. It will be appreciated by those skilled in the art that and between step 1 and 2, there is no strict time sequencing, illustrate with the form in Fig. 2 and be only statement conveniently.

Hereafter, in step S3, each relay station demodulates transmission symbol { X according to the signal received₁, X₂... (e.g., 16QAM modulation symbol), then, in step s 4 signal is forwarded to base station 0 in the following manner:

-in first time slot, relay station 1 sends X on its transmitting antenna₁, relay station 2 sends bX on its transmitting antenna₁;

-in second time slot, relay station 1 sends X on its transmitting antenna₂, relay station 2 then sends bX on its transmitting antenna₂��

Wherein, N (this example intermediate value is 1) the road signal to be sent in common M (this example intermediate value is 2) the road signal to be sent at each relay station place is addressed to base station 0 after being weighted process.

Herein, mainly illustrate for Space Time Coding, the present invention can be extended to the situation of space-frequency coding based on the instruction of present specification without creative work by those skilled in the art, only " first time slot " described in above need to be replaced with " first subcarrier ", and " second time slot " is correspondingly replaced with " second subcarrier ".

Then, the signal that base station 0 place receives can be shown as the form of following formula (2):

y_i=h_{I, RS1}x_k+bh_{I, RS2}x_k+n_iI=1 ..., N_r; K=1,2 ... (2)

Wherein, n_iRepresent additive noise.

So, the relevant coding of group is constituted between the transmitting antenna of relay station 1 and relay station 2. The implication of the relevant coding of group referred to herein is: send corresponding symbol (one of them symbol can be weighted processing) on the same time slot/same subcarrier of different antennae.

By reading following description, the advantage of the present invention will be apparent from, and following formula (3) illustrates the judgement signal to noise ratio (SNR in example shown in Fig. 3_Decision):

I=1 ..., N_r(3)

Wherein, G_{diversitygain}Represent diversity gain, correspondingly, G_arraygainRepresent array gain.

Judgement signal to noise ratio (the SNR of the ADSTC scheme in Fig. 1_{Decision_of_ADSTC}) as shown in following formula (4):

I=1 ..., N_r(4)

Being not difficult to find out by comparing, the present invention, compared to the existing combined relaying being based purely on open loop approach, additionally obtains array gain, and systematic function is more excellent.

Additionally, visible, in this example, between base station 0 and each relay station, signaling consumption produced by the weight coefficient of transmission is only 1 bit, less than the 4Q bit in the distributed precoding scheme shown in Fig. 1 b, wherein Q represents the feedback quantity of each precoding coefficients, saves the Radio Resource between base station and relay station.

So, the signal to noise ratio that can realize receiving signal at base station 0 place maximizes, hereafter, in the receiver at base station 0 place, it is possible to detect to the received signal according to maximum-ratio combing (MRC).

Herein, the one group of antenna encoded that formation group is each other concerned with is referred to as coupling antenna.

When mating antenna and being positioned on different relay stations (as, situation shown in Fig. 3), if relay station 1,2 sends identical pilot signal to base station 0 on coupling antenna, then receiver carries out a linear combination (coefficient depends on weight coefficient b) of the channel response that the obtained channel response of channel estimating is actually between reception antenna physically and transmitting antenna, under this situation, receiver of the prior art can realize the support to the present invention.

If these relay stations send different pilot signals to base station 0 on coupling antenna, being then required for the present invention and receiver is improved, specifically, the receiver after the improvement of base station 0 place is primarily based on the pilot signal P that relay station 1,2 is sent respectively₂��P₃Channel being estimated, is correspondingly made available two channel response value, then, receiver, in conjunction with the weight coefficient b used by relay station 2 and said two channel response value, calculates the channel response obtaining equivalence, for follow-up signal detection according to linear weighted function.

In upper example, the weight coefficient b being used for being weighted directly is informed relay station 2 by base station 0. In a change case of upper example, the generation process of weight coefficient b carries out at relay station 2 place, specifically, in step 1, channel related information between its each reception antenna and each transmitting antenna of each relay station of collecting is informed relay station 2 by base station 0, then is generated weight coefficient b by relay station 2 as shown in above-mentioned formula (1).

In the another change case of upper example, assume that the channel between each relay station and base station 0 is symmetric channel, now, the channel estimating that should be undertaken by recipient (base station 0) also can be undertaken by each relay station, then, the channel related information that each relay station will obtain between himself and base station 0 respectively, hereafter, channel related information is collected to relay station 2 place by each relay station, and relay station 2 generates weight coefficient b according to formula (1) then.

Hereinafter, will no longer other application scenarios of above-mentioned two change case be particularly described, and only for base station for needing the relay station carrying out precoding directly to provide the situation of weight coefficient to illustrate. It will be appreciated by those skilled in the art that and so the solution of the present invention will not be caused any materially affect.

Hereinafter, such for relay station 1 in such as Fig. 3 relay station worked under open loop approach is called open loop relay station, such for relay station 2 in such as Fig. 3 relay station worked under closed-loop fashion is called closed loop relay station, and some antennas sending weighted process signal, the multiple antennas relay station that all the other antennas send not weighted process signal is called compound relay station.

Fig. 4 a is the combined relaying network diagram of a specific embodiment according to the present invention, and wherein, relay station 3,4 is combined down hop equipment and sent signal, and relay station 3 is furnished with a transmitting antenna, and relay station 4 is then furnished with two transmitting antennas. Visible, relay station 3 is an open loop relay station, and relay station 4 is a compound relay station.

With reference to Fig. 4 a and in conjunction with Fig. 2, in step 1, base station 0 provides for (being called TX-4_1 to by a transmitting antenna at relay station 4 for relay station 4, hereinafter, represent n-th transmitting antenna of relay station m with the form of TX-m_n) on signal to be sent be weighted process weight coefficient b₁��

After receiving the mobile terminal A upward signal sent in step 2, in step 3, relay station 3,4 pairs its be demodulated obtaining modulation symbol { X₁, X₂..., then, relay station 4 treats that the signal that (space) encodes carries out (space) coding described in obtaining after demodulation, and obtaining two-way signal to be sent is { X₁, X₂And { X₂ ^*,-X₁ ^*, and then utilize weight coefficient b₁To the signal sequence { X that will send on TX-4_1₁, X₂Be weighted processing, obtain the signal sequence { b to be sent of a weighted process in road₁X₁, b₁X₂}��

In step 4, signal to be sent is mail to base station 0 by relay station 3,4 in the following manner:

-in the first slot, relay station 3 sends X₁, relay station 4 sends b on TX-4_1₁X₁And on TX-4_2, send X₂ ^*;

-in the second time slot, relay station 3 sends X₂, relay station 4 sends b on TX-4_1₁X₂And on TX-4_2 transmission-X₁ ^*��

Visible, in Fig. 4 a illustrated embodiment, distributed Space Time Coding is constituted between transmitting antenna and the TX-4_2 of relay station 4 of relay station 3, thus coding gain can be obtained, in addition, the relevant coding of group is also constituted, thus array gain can be obtained between transmitting antenna and the TX-4_1 of relay station 4 of relay station 3.

Weight coefficient b in Fig. 4 a illustrated embodiment₁Generation rely on coupling antenna (TX-4_1 on the transmitting antenna of relay station 3 and relay station 4) and each reception antenna of base station 0 between channel related information, as the received signal quality for realizing receiving terminal maximizes, then still can adopt and determine b with formula (1) formula (5) in like manner₁, it may be assumed that

$b_1=\left\{\begin{array}{cc}1,& \mathrm{Re}\left\{\underset{i=1}{\overset{N_r}{\mathrm{\&Sigma;}}}{h}_{i,\mathrm{RS}3}^{*}{h}_{i,\mathrm{RS}4}\right\}\&GreaterEqual;0\\ -1,& \mathrm{Re}\left\{\underset{i=1}{\overset{N_r}{\mathrm{\&Sigma;}}}{h}_{i,\mathrm{RS}3}^{*}{h}_{i,\mathrm{RS}4}\right\}<0\end{array}\right.,$ I=1 ..., N_r(5)

Wherein, h_{I, RS3}With h_{I, RS4}Show respectively the channel related information between the TX-4_1 of the channel related information between the transmitting antenna of relay station 3 and i-th reception antenna of base station 0 and relay station 4 and i-th reception antenna of base station 0.

In this kind of situation, the signaling consumption that the weight coefficient between base station 0 and relay station relates to is still 1 bit.

Fig. 4 b illustrates the combined relaying network diagram of a specific embodiment according to the present invention, and wherein, relay station 5,6 is combined and sent signal to base station 0, and relay station 5 is furnished with two transmitting antennas, and relay station 6 is only furnished with a transmitting antenna.

Wherein, between two transmitting antenna TX-5_1 and TX-5_2 of relay station 5, constitute Space Time Coding, and, the relevant coding of composition group between the transmitting antenna of TX-5_1 and relay station 6. Relay station 6 is for the coefficient b of weighting₂Generate based on the channel related information between the channel related information between transmitting antenna and each reception antenna of base station 0 of relay station 6 and TX-5_1 and each reception antenna of base station 0, as shown in formula (6):

$b_2=\left\{\begin{array}{cc}1,& \mathrm{Re}\left\{\underset{i=1}{\overset{N_r}{\mathrm{\&Sigma;}}}{h}_{i,\mathrm{RS}5}^{*}{h}_{i,\mathrm{RS}6}\right\}\&GreaterEqual;0\\ -1,& \mathrm{Re}\left\{\underset{i=1}{\overset{N_r}{\mathrm{\&Sigma;}}}{h}_{i,\mathrm{RS}5}^{*}{h}_{i,\mathrm{RS}6}\right\}<0\end{array}\right.---\left(6\right)$

Wherein, h_{I, RS5}Represent the channel related information between TX-5_1 and i-th reception antenna of base station 0, h_{I, RS6}Represent the channel related information between transmitting antenna and i-th reception antenna of base station 0 of relay station 6.

It will be appreciated by those skilled in the art that the various application scenarios of the not exhaustive present invention of each embodiment of present specification, but, those skilled in the art can apply the present invention in the situation not occurred herein without creative work under teaching herein.

Fig. 5 is the combined relaying network diagram of a specific embodiment according to the present invention, and wherein, relay station 7,8 is combined and sent signal to base station 0, and said two relay station is respectively arranged with two transmitting antennas. Relay station 7 is an open loop relay station, and relay station 8 is a closed loop relay station.

Now, between TX-7_1 and TX-8_1, and between TX-7_2 and TX-8_2, respectively constitute the relevant coding of group.

The signal that base station 0 place receives is shown in formula (7) in the matrix form:

$\left[\begin{array}{cc}{y}_i^{\left(1\right)}& y_i^{\left(2\right)}\end{array}\right]\left[\begin{array}{cccc}{h}_{i,\mathrm{RS}7-1}& h_{i,\mathrm{RS}7-2}& h_{i,\mathrm{RS}8-1}& h_{i,\mathrm{RS}8-2}\end{array}\right]\left[\begin{array}{cc}{x}_1& x_2\\ x_2^{*}& {-x}_1^{*}\\ b_1{x}_1& b_1{x}_2\\ b_2{x}_2^{*}& -b_2{x}_1^{*}\end{array}\right]+\left[\begin{array}{cc}{n}_i^{\left(1\right)}& n_i^{\left(2\right)}\end{array}\right]---\left(7\right)$

Wherein,Represent that i-th reception antenna of base station 0 is at the signal received by kth time slot, h_{I, RS7-1}Representing the channel related information between first transmitting antenna and i-th reception antenna of base station 0 of relay station 7, all the other are in like manner. Based on this, formula (7) is equivalent to formula (8):

$\left[\begin{array}{cc}{y}_i^{\left(1\right)}& y_i^{\left(2\right)}\end{array}\right]=\left[\begin{array}{cc}{h}_{i,\mathrm{RS}7-1}+b_3{h}_{i,\mathrm{RS}8-1}& h_{i,\mathrm{RS}7-2}+b_4{h}_{i,\mathrm{RS}8-2}\end{array}\right]\left[\begin{array}{cc}{x}_1& x_2\\ x_2^{*}& -x_1^{*}\end{array}\right]+\left[\begin{array}{cc}{n}_i^{\left(1\right)}& n_i^{\left(2\right)}\end{array}\right]---\left(8\right)$

In this example, the receiver at base station 0 place can use Alamouti decoder to recover modulation symbol X₁, X₂. Still according to the principle that base station 0 place snr of received signal is maximum, weight coefficient b can be determined by formula (9)₃And b₄:

Wherein, during ��=3, j=1; During ��=4, j=2

h_{I, RS7-j}Represent the channel related information between jth root transmitting antenna and i-th reception antenna of base station 0 of relay station 7, h_{I, RS8-j}Represent the channel related information between jth root transmitting antenna and i-th reception antenna of base station 0 of relay station 8. In other words, in this example, b₃Generate based on coupling antenna TX-7_1 and TX-8_1 channel related information each and between each reception antenna in base station 0, and b₄Then generate based on coupling antenna TX-7_2 and TX-8_2 channel related information each and between each reception antenna of base station 0.

In this example, the weight coefficient transmission between base station 0 and each relay station only takes up 2 bits, is much better than simple closed loop policy of the prior art.

Skilled artisan understands that; Fig. 5 illustrate only a kind of combined relaying scheme when two relay stations are provided with two transmitting antennas; protection scope of the present invention also covers multiple change case of situation shown in Fig. 5; as; signal to be sent on one root transmitting antenna is also weighted processing by relay station 7, etc. Repeat no more.

Present disclosure applies equally to plural relay station associating down hop equipment and send the situation of signal, illustrate referring to Fig. 2 and respectively in connection with Fig. 6 a-6d.

In situation shown in Fig. 6 a, three relay station I-III are all only furnished with a transmitting antenna, wherein, constitute distributed testing system between the transmitting antenna of relay station I, II, and between the transmitting antenna of relay station I, III, then composition group is relevant encodes. Skilled person will appreciate that in conjunction with described above, weight coefficient b₅Generation depend on the channel related information between the transmitting antenna of relay station I, III constituting coupling antenna each reception antenna each and between base station 0, it determines that scheme can based on the thought of formula (5), i.e. by b therein₁Replace with b₅, then by h_{I, RS3}Replace with h_{I, RSI}, and by h_{I, RS4}Replace with h_{I, RSII}��

A change case as situation shown in Fig. 6 a, in Fig. 6 b, the working method of relay station I, II is identical with Fig. 6 a, the difference is that, the relevant coding of composition group between relay station III ' and relay station II, generates b based on constituting the transmitting antenna of relay station II, III of the coupling antenna channel related information respectively and between each reception antenna in base station 0 thought based on formula (5)₆��

In Fig. 6 c, the relevant coding of composition group between the transmitting antenna of relay station I and relay station IV, wherein, the weight coefficient b used by relay station IV₇Determine based on the channel related information between transmitting antenna and each reception antenna of base station 0 of relay station I, IV. It addition, the matching result of relay station I and IV relevant coding of composition group further and between relay station V. b₈Thought based on formula (5) is determined, i.e. by b therein₁Replace with b₈, then by h_{I, RS3}Replace with h_{I, RS-I}+b₇��h_{I, RS-IV}, and by h_{I, RS4}Replace with h_{I, RS-V}��

In junction network shown in Fig. 6 d, relay station VI is furnished with two transmitting antennas, the relevant coding of composition group, weight coefficient b respectively and between relay station I, II₉��b₁₀Generation refer to described above, its principle can for ensureing to realize signal quality maximization when the signal that signal that relay station I and first transmitting antenna of relay station VI launch and relay station II and second transmitting antenna of relay station VI are launched receives at base station 0 place respectively.

Be grouped in conjunction with antenna, sky line options, or the circulation scheme such as delay diversity, the present invention can promote for the relay station situation containing three or more transmitting antennas, repeats no more herein.

Hereinafter, with reference to Fig. 7 and in conjunction with Fig. 4 a to being described for combining, with other relay station, the method sending a signal to next-hop device in multiple antennas relay station according to a specific embodiment of the present invention. For the relay station 4 in Fig. 4 a, it is furnished with two transmitting antenna TX-4_1 and TX-4_2.

In step S10, relay station 4 obtains weight coefficient b₁. Described step S10 has following two specific implementation:

Mode 1: obtained weight coefficient b by base station 0₁

In this kind of situation, base station 0 is responsible for generating b based on the channel related information of the channel (including the channel between the transmitting antenna of its reception antenna and relay station 3 and the channel between its reception antenna and TX-4_1) between itself and relay station 3,4₁, and inform relay station 4.

Mode 2: relay station 4 generates weight coefficient b voluntarily₁

In this kind of situation, step S10 is realized by following sub-step (not shown):

S100: relay station 4 is obtained by base station 0 and is used for generating b₁Each channel related information;

S101: relay station 4 generates b based on the channel related information obtained₁��

Alternatively, S10 also can be realized by following sub-step, and described each sub-step is especially suitable when channel is symmetric channel:

S100 ': relay station 4 carries out channel estimating, obtain the channel related information between TX-4_1 and base station 0, carried out channel estimating by relay station 3 simultaneously and the channel related information between relay station 3 and the base station 0 of acquisition directly informed or indirectly informs relay station 4 by base station 0;

S101 ': relay station 4 generates b based on the channel related information obtained₁��

Receiving after the upward signal of mobile terminal A, it is demodulated by relay station 4, obtains stream of modulation symbols { X₁, X₂, X₃, X₄... .}, based on configuration in advance, in step s 11, the described symbol stream demodulated is carried out Space Time Coding by relay station 4, with { X₁, X₂For example, the symbol { X that relay station 4 is space-time encoded by obtaining two-way₁, X₂And { X₂ ^*,-X₁ ^*}��

It will be appreciated by those skilled in the art that when the channel between relay station 4 and base station 0 is time varying channel, the method preferably periodically performs step S10, with the b1 that upgrades in time, thus ensureing that receiving terminal has higher signal quality. And when the time variation of described channel poor even for time invariant channel time, the execution cycle of step S10 can be very long, and even relay station 4 is once obtaining b₁After, namely at channel condition because other reason no longer performs step S10 before changing. As can be seen here, step S10 can economize, and, there is no strict time sequencing between step S10 and step S11.

Hereafter in step S12, the relay station 4 weight coefficient b obtained in step S10₁It is weighted by the road signal sent on TX-4_1, generates the signal { b that a road is weighted₁X₁, b₁X₂}��

Then, in step s 13, signal to be sent is issued base station 0 with relay station 3 by relay station 4.

A specific embodiment according to the present invention, pending signal is not spatially encoded by a multiple antennas relay station, and sends signal with the form of space diversity or spatial reuse, wherein, just sends after the weighted process of one or more signal.

Fig. 8 illustrates the method flow diagram sending signal in the single antenna relay station of wireless relay network for combining down hop equipment with other relay station according to a specific embodiment of the present invention. Hereinafter, a second aspect of the present invention is illustrated with reference to Fig. 8 and in conjunction with Fig. 6 a, 6b. First for the single antenna relay station III in Fig. 6 a.

In step S20, relay station III obtains weight coefficient b₅, its concrete mode obtains the mode of weight coefficient with the above multiple antennas relay station, i.e. the b that both can directly will have been generated by base station 0₅Issue relay station III, it is possible to provided the channel related information between channel related information and relay station III and the base station 0 between relay station I and base station 0 by base station 0 for relay station III, then generated b by relay station III₅. Described b₅Generation process be based preferably on receiving terminal (base station 0) received signal quality maximize criterion, described received signal quality include any one in the following or appoint multinomial: received signal power; The ratio of received signal power and noise power; The ratio of received signal power and interfering signal power; The ratio of received signal power and noise power, interfering signal power sum.

Hereafter, in step S21, relay station III treats the { X that weighting processes₁, X₂Be weighted processing, generate { b₅X₁, b₅X₂, namely the signal to be sent of the weighted process in a road. Subsequently, with relay station I, II in step S22, relay station III is by b₅X₁, b₅X₂Send to base station 0 on two time slots of its transmitting antenna respectively.

Skilled artisan understands that, the execution frequency of step S20 preferably adjusts according to the time-varying characteristics of channel, when channel time variation is stronger (channel related information changes over comparatively fast), the execution of step S20 is comparatively frequent, then can perform a step S20 every a considerable time on the contrary.

Again for the relay station III ' in Fig. 6 b, with relay station III similarly, it also obtains weight coefficient (b in step S20₆)��

But, relay station III ' needs pending signal { X₁, X₂Carry out Space Time Coding the {-X that will generate₁ ^*, X₂ ^*Be used for sending, then, for relay station III ', before described step S21, also include a unshowned step, wherein, relay station III ' performs described space-time coding operation.

Hereafter, in step S21, relay station III ' treats the {-X that weighting processes₁ ^*, X₂ ^*Be weighted processing, generate {-b₆X₁ ^*, b₆X₂ ^*, namely the signal to be sent of the weighted process in a road. Subsequently, in step S22, the signal to be sent of the described weighted process in road of its generation is sent to base station 0 with relay station I, II by relay station III '.

Fig. 9 illustrates the method flow diagram sending signal in the base station of wireless relay network for controlling multiple relay station associating down hop equipment according to a specific embodiment of the present invention. Hereinafter, it is described with reference to Fig. 9 and in conjunction with Fig. 4 a method that a third aspect of the present invention is provided.

Mentioned by above having had, base station 0 can provide b for relay station 4₁, it is possible to provide channel related information to generate b voluntarily for it for it₁, it is discussed below respectively:

(1) base station 0 provides b for relay station 4₁

Under this kind of situation, the operation that base station 0 place performs is consistent with Fig. 9, namely, first, obtain base station 0 and the channel related information illustrated between each relay station in step s 30, a specific embodiment according to the present invention, channel related information between main each reception antenna and the transmitting antenna of relay station 3 obtaining base station 0 is, and channel related information between TX-4_1 on each reception antenna of base station 0 and relay station 4. Its concrete mode is as carried out channel estimating etc.

Then, in step S31, base station 0 generates b according to the channel related information obtained in step S31₁, its generating mode can refer to the related content being described for system approach.

Hereafter in step S32, the b that base station 0 will generate for relay station 4₁Inform relay station 4.

(2) base station 0 provides channel related information for relay station 4

Under this kind of situation, the step S31 shown in Fig. 9 can economize, and base station is after the channel related information obtained between itself and relay station 3,4, it is not necessary to generates b₁, directly the channel related information of acquisition is informed relay station 4.

As being transmitted as example with downstream signal, then in figure, the next-hop device of each relay station is mobile terminal A, now, can be estimated by the channel between the mobile terminal A each transmitting antenna to its reception antenna and relay station 3,4 and be reported to base station 0, then being generated b by base station 0 based on this₁, or therefrom selected by base station 0 to generate b₁Required channel related information is also supplied to relay station 4.

It addition, for ensureing that mobile terminal A can carry out correct detection to the received signal, the described weight coefficient b that base station 0 also will generate for relay station 4₁Inform mobile terminal A.

Hereinafter, illustrate in conjunction with the first associating dispensing device in Figure 10 multiple antennas relay station that a fourth aspect of the present invention is provided.

Shown in Figure 10, the first associating dispensing device 10 includes: first weighting device the 100, first sender unit the 101, first space encoding device 102 and the first weight coefficient obtain device 103. Wherein, described first weight coefficient acquisition device 103 specifically includes: the first weighted information acquisition device 1030 and the first auxiliary obtain device 1031. Skilled artisan understands that, Figure 10 illustrating, the multiple embodiments according to the present invention for the first device combining in dispensing device 10 for convenience, for a certain specific embodiment, each sub-device shown in Figure 10 is likely to have one or more combined signal being not involved in this specific embodiment to send process.

For the relay station 4 in Fig. 4 a, it is furnished with two transmitting antenna TX-4_1 and TX-4_2.

Described first weight coefficient at relay station 4 place obtains device 103 and obtains weight coefficient b₁. It obtains b₁Mode have following two:

Mode 1: obtained weight coefficient b by base station 0₁

In this kind of situation, base station 0 is responsible for generating b based on the channel related information of the channel (including the channel between the transmitting antenna of its reception antenna and relay station 3 and the channel between its reception antenna and TX-4_1) between itself and relay station 3,4₁, and inform relay station 4. Correspondingly, the first weighted information acquisition device 1030 is obtained by base station 0 weight coefficient relevant information and weight coefficient b₁. Visible, in mode 1, the first auxiliary obtains device 1031 and can economize.

Mode 2: relay station 4 generates weight coefficient b voluntarily₁

In this kind of situation, each sub-device working method that the first weight coefficient obtains device 103 is as follows:

First first weighted information acquisition device 1030 is obtained by base station 0 and is used for generating b₁Each channel related information;

First auxiliary obtains device 1031 and generates b based on the channel related information obtained according to previously described formula (1)₁��

Alternatively, above-mentioned each sub-device obtains b also by performing following operation₁, operations described below is especially suitable when channel is symmetric channel:

First weighted information acquisition device 1030 obtain channel related information (as, pass through channel estimating), obtain the channel related information between TX-4_1 and base station 0, and being carried out the channel related information between channel estimating acquisition relay station 3 and base station 0 by relay station 3, the channel related information of acquisition is concentrated to the first auxiliary and obtains device 1031 place;

Obtained device 1031 by the first auxiliary and generate b based on the channel related information obtained₁��

Receiving after the upward signal of mobile terminal A, it is demodulated by relay station 4, obtains stream of modulation symbols { X₁, X₂, X₃, X₄... .}, based on the encoding scheme being pre-configured with, the described symbol stream demodulated is carried out Space Time Coding by the first space encoding device 102, with { X₁, X₂For example, through the symbol { X that described Space Time Coding is space-time encoded by obtaining two-way₁, X₂And { X₂ ^*,-X₁ ^*}��

Skilled artisan understands that, when channel between relay station 4 and base station 0 is time varying channel, first weight coefficient obtain device 103 periodically obtains on TX-4_1 treat weighted signal be weighted process weight coefficient, thus ensureing that receiving terminal has higher signal quality. And when the time variation of described channel poor even for time invariant channel time, the execution cycle obtaining operation of above-mentioned weight coefficient can be very long, even relay station 4 is after once obtaining described weight coefficient, namely operates because other reason no longer performs described acquisition before changing at channel condition. Further, the work of the first weight coefficient acquisition device 103 and the first space encoding device 102 does not have strict time sequencing.

Hereafter, the first weighting device 100 obtain, with the first weight coefficient, the weight coefficient b that device 103 obtains₁It is weighted by the road signal sent on TX-4_1, generates { b₁X₁, b₁X₂}��

Then, the first sender unit 101 signal of the weighted process generated is issued base station 0 with relay station 3.

A specific embodiment according to the present invention, pending signal is not spatially encoded by a multiple antennas relay station, and sends signal with the form of space diversity or spatial reuse, wherein, just sends after the weighted process of one or more signal.

Figure 11 illustrates the second associating dispensing device block diagram sending signal in the single antenna relay station of wireless relay network for combining down hop equipment with other relay station according to a specific embodiment of the present invention.

Hereinafter, a fifth aspect of the present invention is illustrated with reference to Figure 11 and in conjunction with Fig. 6 a, 6b. Shown second associating dispensing device 20 includes: the second weighting device 200, secondary signal dispensing device 201, second space code device 202 and the second weight coefficient obtain device 203. Wherein, described second weight coefficient acquisition device 203 specifically includes: the second weighted information acquisition device 2030 and the second auxiliary obtain device 2031. Skilled artisan understands that, Figure 11 illustrating, the multiple embodiments according to the present invention for the second device combining in dispensing device 20 for convenience, for a certain specific embodiment, each sub-device shown in Figure 11 is likely to have one or more combined signal being not involved in this specific embodiment to send process.

First for the relay station III in Fig. 6 a.

Second weight coefficient at relay station III place obtains device 203 and obtains weight coefficient b₅, its concrete mode obtains the mode of weight coefficient with multiple antennas relay station, i.e. the b that both can directly will have been generated by base station 0₅Issue relay station III, and obtained by the second weighted information acquisition device, it is preferable that the thought based on above-mentioned formula (5) generates b₅. Also the channel related information between channel related information and relay station III and the base station 0 between relay station I and base station 0 can be provided by base station 0 for relay station III, described channel related information is supplied to the second auxiliary and obtains device 2031 after being obtained by the second weighted information acquisition device 2030, the latter generates b according to described channel related information₅. Described b₅Generation process be based preferably on receiving terminal (base station 0) received signal quality maximize, described received signal quality include any one in the following or appoint multinomial: received signal power; The ratio of received signal power and noise power; The ratio of received signal power and interfering signal power; The ratio of received signal power and noise power, interfering signal power sum.

The weight coefficient b obtained₅Being supplied to the second weighting device 200, the second weighting device 200 will treat { the X that weighting processes₁, X₂Be weighted processing, generate { b₅X₁, b₅X₂, namely road signal to be sent. Subsequently, by secondary signal dispensing device 201 by signal b to be sent₅X₁, b₅X₂Send to base station 0 on two time slots of relay station III transmitting antenna respectively.

Skilled artisan understands that, second weight coefficient obtains device 203 and obtains the frequency of weight coefficient preferably with reference to the time-varying characteristics of channel, when channel time variation is stronger (channel related information changes over comparatively fast), comparatively frequent, then can perform once described weight coefficient every a considerable time on the contrary and obtain process.

Visible, for relay station III, second space code device 202 can be economized.

Again for the relay station III ' in Fig. 6 b, with relay station III similarly, it also utilizes the second weight coefficient to obtain device 203 to obtain weight coefficient (b₆)��

But, relay station III ' needs to utilize second space code device 202 thereon to pending signal { X₁, X₂Carry out Space Time Coding the {-X that will generate₁ ^*, X₂ ^*Be used for sending.

{-the X generated₁ ^*, X₂ ^*Be provided to the second weighting device 200, the latter utilize b6 to treat the {-X that weighting processes₁ ^*, X₂ ^*Be weighted processing, generate {-b₆X₁ ^*, b₆X₂ ^*, namely road signal to be sent. Subsequently, the {-b that secondary signal dispensing device 201 will generate₆X₁ ^*, b₆X₂ ^*Send to base station 0.

Hereinafter, it is described with reference to Figure 12 the control device that a sixth aspect of the present invention provided in conjunction with Fig. 4 a. The shown device 30 that controls includes: acquisition device 300, generation device 301 and notice device 302.

Mentioned by above having had, base station 0 can provide b for relay station 4₁, it is possible to provide channel related information to generate b voluntarily for it for it₁, it is discussed below respectively:

(1) base station 0 provides b for relay station 4₁

Under this kind of situation, first, base station 0 and the channel related information illustrated between each relay station is obtained by acquisition device 300, a specific embodiment according to the present invention, the channel related information between TX-4_1 in the mainly channel related information between each reception antenna and the transmitting antenna of relay station 3 of acquisition base station 0, and each reception antenna of base station 0 and relay station 4. Its concrete mode is as carried out channel estimating etc.

Then, generation device 301 channel related information obtained according to acquisition device 300 generates b₁, its generating mode can refer to the related content being described for system approach.

Hereafter, notice device 302 b that will generate for relay station 4₁Inform relay station 4.

(2) base station 0 provides channel related information for relay station 4

Under this kind of situation, the generation device 301 shown in Figure 12 can be economized, after the channel related information that acquisition device 300 obtains between base station 0 and relay station 3,4, it is not necessary to generate b₁, directly by notice device 302, the channel related information of acquisition is informed relay station 4.

As being transmitted as example with downstream signal, then in figure, the next-hop device of each relay station is mobile terminal A, now, can be estimated by the channel between the mobile terminal A each transmitting antenna to its reception antenna and relay station 3,4 and be reported to base station 0, then being generated b by base station 0 based on this₁, or therefrom selected by base station 0 to generate b₁Required channel related information is also supplied to relay station 4.

It addition, for ensureing that mobile terminal A can carry out correct detection to the received signal, the described weight coefficient b1 generated for relay station 4 is also informed mobile terminal A by base station 0, is specifically completed by a sub-device unshowned in Figure 12.

Figure 13 illustrate according to a specific embodiment of the present invention in the network equipment of wireless relay network for being combined, by many relay stations, the method flow diagram that the signal of transmission detects to what receive. Wherein, in view of when different relay stations send identical pilot signal on coupling antenna, existing receiver can support the present invention without changing, and therefore, sends the situation of different frequency pilot signs mainly for different relay stations below and illustrate on coupling antenna.

In step S40, the channel response between each reception antenna of self and all transmitting antennas of all relay stations is estimated in base station 0, then, the channel response of coupling antenna is carried out corresponding linear weighted function merging in conjunction with corresponding weight coefficient, obtain the response of corresponding equivalent channels.

Then, in step S41, base station 0 is detected to received signal according to this equivalence channel response generated, thus recovering original modulation symbol X₁, X₂��

Figure 14 illustrate according to a specific embodiment of the present invention in the network equipment of wireless relay network for being combined, by many relay stations, the signal supervisory instrument block diagram that the signal of transmission detects to what receive. Shown signal supervisory instrument 40 includes: generation device 400 of equal value and detecting device 401.

First, the device 400 that generates of equal value estimates the channel response between each reception antenna of base station 0 and all transmitting antennas of all relay stations, then, the channel response of coupling antenna is merged accordingly in conjunction with corresponding weight coefficient, obtain the response of corresponding equivalent channels.

Then, detecting device 401 detects to received signal according to this equivalence channel response generated, thus recovering original modulation symbol X₁, X₂��

Above embodiments of the invention being described, but the invention is not limited in specific system, equipment and concrete agreement, those skilled in that art can make various deformation or amendment within the scope of the appended claims.

Claims (34)

1., for combining the method that down hop equipment sends signal with other relay station in the multiple antennas relay station of wireless relay network, wherein, comprise the following steps:

B. utilize weight coefficient to be treated that weighted signal is weighted processing by one or more in the multiple signals of this multiple antennas relaying and the transmission of other relay stations, to generate the signal to be sent of one or more weighted process;

C. the signal to be sent of the signal to be sent of one or more weighted process described and the not weighted process in all the other each roads is sent to described next-hop device so that the antenna of signal sending weighted process of described multiple antennas relay station and the respective antenna of other relay stations described send corresponding symbol in same time or same frequency.

2. method according to claim 1, it is characterised in that further comprise the steps of: before described step b

A. pending signal is spatially encoded, the signal spatially encoded to generate multichannel; Described step b also includes:

-utilize weight coefficient to one or more in the spatially encoded signal of described multichannel spatially encoded treat that weighted signal is weighted processing, to generate the signal to be sent of one or more weighted process described.

3. method according to claim 1 and 2, it is characterised in that also include before described step b:

I. described weight coefficient is obtained.

4. method according to claim 3, it is characterised in that described step i also includes:

I1. the base station belonging to this relay station obtains weight coefficient relevant information.

5. method according to claim 4, it is characterised in that described weight coefficient relevant information includes any one in the following or appoints multinomial:

-for one or more in described multiple signals being treated the described weight coefficient that weighted signal is weighted;

The channel related information between multiple relay stations and described next-hop device in-described each relay station;

Wherein, when the channel related information that described weight coefficient relevant information is between the multiple relay stations in described each relay station and described next-hop device, also include after described step i1:

I2. based on the channel related information between the multiple relay stations in described each relay station and described next-hop device, generate for one or more in described multiple signals being treated the described weight coefficient that weighted signal is weighted.

6. the method according to any one of claim 3 to 5, it is characterized in that, described weight coefficient maximizes for the received signal quality at real presently described next-hop device place, and wherein, described received signal quality includes any one in the following or appoints multinomial:

-received signal power;

The ratio of-received signal power and noise power;

The ratio of-received signal power and interfering signal power;

The ratio of-received signal power and noise power, interfering signal power sum.

7. method according to any one of claim 1 to 6, it is characterised in that described space encoding includes any one in the following:

-Space Time Coding;

-space-frequency coding.

8., for combining the method that down hop equipment sends signal with other relay station in the single antenna relay station of wireless relay network, wherein, comprise the following steps:

P. utilize weight coefficient to treat weighted signal to be weighted, to generate the signal to be sent of a weighted process in road;

Q. the signal to be sent of described weighted process is sent to described next-hop device, wherein, the way of signal to be sent being weighted processing in each relay station is less than total way of signal to be sent, and the respective antenna of the antenna of described single antenna relay station and other relay stations described sends corresponding symbol in same time or same frequency.

9. method according to claim 8, it is characterised in that also include before described step P:

Pending signal is spatially encoded, with generate a road spatially encoded treat weighted signal;

Described step P also includes:

-utilize weight coefficient spatially encoded to treat that weighted signal is weighted to described, to generate the signal to be sent of described weighted process.

10. method according to claim 8 or claim 9, it is characterised in that also include before described step P:

-obtain for treating that weighted signal is weighted the described weight coefficient processed to described.

11. method according to claim 10, it is characterised in that described acquisition is for including the described step of described weight coefficient treating that weighted signal is weighted processing:

-base station belonging to this relay station obtains weight coefficient relevant information.

12. method according to claim 11, it is characterised in that described weight coefficient relevant information includes any one in the following or appoints multinomial:

-for the described described weight coefficient treating that weighted signal is weighted;

The channel related information between multiple relay stations and described next-hop device in-described each relay station;

Wherein, when the channel related information that described weight coefficient relevant information is between the multiple relay stations in described each relay station and described next-hop device, also include after described base station belonging to this relay station obtains the step of weight coefficient relevant information:

-based on the channel related information between the multiple relay stations in described each relay station and this next-hop device, generate for described signal to be sent being weighted the described weight coefficient processed;

Described weight coefficient maximizes for the received signal quality at real presently described next-hop device place, and wherein, described received signal quality includes any one in the following or appoints multinomial:

-received signal power;

The ratio of-received signal power and noise power;

The ratio of-received signal power and interfering signal power;

The ratio of-received signal power and noise power, interfering signal power sum.

13. according to Claim 8 to the method according to any one of 12, it is characterised in that described space encoding includes any one in the following:

-Space Time Coding;

-space-frequency coding.

14. for controlling the method that multiple relay station associating down hop equipment sends signal in the base station of wireless relay network, wherein, comprise the following steps:

A. weight coefficient relevant information is provided for the one or more relay stations in the plurality of relay station, described weight coefficient relevant information is weighted processing for being treated weighted signal by the one or more relay station, wherein, each relay station is weighted the way of signal to be sent that processes less than total way of signal to be sent, and is weighted the antenna of signal sending weighted process of the one or more relay station that processes and the respective antenna of other relay stations sends corresponding symbol in same time or same frequency.

15. method according to claim 14, it is characterised in that described weight coefficient relevant information includes any one in the following or appoints multinomial:

-described weight coefficient;

The channel related information between multiple relay stations and described next-hop device in-described each relay station.

16. send the first of signal and combine a dispensing device for combine down hop equipment with other relay station in the multiple antennas relay station of wireless relay network, wherein, including:

First weighting device, for utilizing weight coefficient to be treated that weighted signal is weighted processing by one or more in the multiple signals of this multiple antennas relaying and the transmission of other relay stations, to generate the signal to be sent of one or more weighted process;

First sender unit, for the signal to be sent of the signal to be sent of one or more weighted process described and the not weighted process in all the other each roads is sent to described next-hop device so that the antenna of signal sending weighted process of described multiple antennas relay station and the respective antenna of other relay stations described send corresponding symbol in same time or same frequency.

17. the first associating dispensing device according to claim 16, it is characterised in that also include:

First space encoding device, for pending signal is spatially encoded, the signal spatially encoded to generate multichannel;

Described first weighting device is additionally operable to, and weighted signal is weighted processing to utilize weight coefficient that one or more in the spatially encoded signal of described multichannel is treated, to generate the signal to be sent of one or more weighted process described.

18. the first associating dispensing device according to claim 17, it is characterised in that also include:

First weight coefficient obtains device, is used for obtaining weight coefficient, and wherein, described weight coefficient is for treating that to described one or more weighted signal is weighted processing.

19. the first associating dispensing device according to claim 18, it is characterised in that described first weight coefficient obtains device and also includes:

First weighted information acquisition device, obtains weight coefficient relevant information for the base station belonging to this relay station.

20. the first associating dispensing device according to claim 19, it is characterised in that described weight coefficient relevant information includes any one in the following or appoints multinomial:

-for described one or more is treated the described weight coefficient that weighted signal is weighted;

The channel related information between multiple relay stations and described next-hop device in-described each relay station;

Wherein, when the channel related information that described weight coefficient relevant information is between the multiple relay stations in described each relay station and described next-hop device, described first weight coefficient obtains device and also includes:

First auxiliary obtains device, for based on the channel related information between the multiple relay stations in described each relay station and this next-hop device, generating for described one or more is treated the described weight coefficient that weighted signal is weighted.

21. the first associating dispensing device according to any one of claim 16 to 20, it is characterized in that, described weight coefficient maximizes for the received signal quality at real presently described next-hop device place, and wherein, described received signal quality includes any one in the following or appoints multinomial:

-received signal power;

The ratio of-received signal power and noise power;

The ratio of-received signal power and interfering signal power;

The ratio of-received signal power and noise power, interfering signal power sum.

22. the first associating dispensing device according to any one of claim 16 to 21, it is characterised in that described space encoding includes any one in the following:

-Space Time Coding;

-space encoding.

23. send the second of signal and combine a dispensing device for combine down hop equipment with other relay station in the single antenna relay station of wireless relay network, wherein, including:

Second weighting device, is used for utilizing weight coefficient to treat weighted signal and is weighted, to generate the signal to be sent of a weighted process in road;

Secondary signal dispensing device, for sending the signal to be sent of described weighted process to described next-hop device;

Wherein, the way of signal to be sent being weighted processing in each relay station is less than total way of signal to be sent, and the respective antenna of the antenna of described single antenna relay station and other relay stations described sends corresponding symbol in same time or same frequency.

24. the second associating dispensing device according to claim 23, it is characterised in that also include:

Second space code device, for pending signal is spatially encoded, with generate a road spatially encoded treat weighted signal;

Described second weighting device is additionally operable to:

-utilize weight coefficient spatially encoded to treat that weighted signal is weighted to described, to generate the signal to be sent of a described weighted process in road.

25. the second associating dispensing device according to claim 23 or 24, it is characterised in that also include:

Second weight coefficient obtains device, for obtaining the described weight coefficient processed for a described road is treated weighted signal be weighted.

26. the second associating dispensing device according to claim 25, it is characterised in that described second weight coefficient obtains device and also includes:

Second weighted information acquisition device, obtains weight coefficient relevant information for the base station belonging to this relay station.

27. method according to claim 26, it is characterised in that described weight coefficient relevant information includes any one in the following or appoints multinomial:

-for the described weight coefficient that weighted signal is weighted is treated on a described road;

The channel related information between multiple relay stations and described next-hop device in-described each relay station;

Wherein, when the channel related information that described weight coefficient relevant information is between the multiple relay stations in described each relay station and described next-hop device, described second weight coefficient obtains device and also includes:

Second auxiliary obtains device, for based on the channel related information between the multiple relay stations in described each relay station and this next-hop device, generating the described weight coefficient processed for a described road is treated weighted signal be weighted;

Described weight coefficient maximizes for the received signal quality at real presently described next-hop device place, and wherein, described received signal quality includes any one in the following or appoints multinomial:

-received signal power;

The ratio of-received signal power and noise power;

The ratio of-received signal power and interfering signal power;

The ratio of-received signal power and noise power, interfering signal power sum.

28. the second associating dispensing device according to any one of claim 23 to 27, it is characterised in that described space encoding includes any one in the following:

-Space Time Coding;

-space encoding.

29. the control device sending signal in the base station of wireless relay network for controlling multiple relay station associating down hop equipment, it is characterized in that, including the device for providing weight coefficient relevant information for the one or more relay stations in the plurality of relay station, described weight coefficient relevant information is weighted processing for being treated weighted signal by the one or more relay station, wherein, the way of signal to be sent being weighted processing in each relay station is less than total way of signal to be sent, and the antenna of signal sending weighted process and the respective antenna of other relay stations that are weighted the one or more relay station of process send corresponding symbol in same time or same frequency.

30. control device according to claim 29, it is characterised in that described weight coefficient relevant information includes any one in the following or appoints multinomial:

-weight coefficient;

The channel related information between multiple relay stations and described next-hop device in-described each relay station.

31. the method sending signal for many relay stations associating down hop equipment in wireless relay network, it is characterised in that comprise the following steps:

II. the N road in the signal of M road is treated that weighted signal is weighted processing by the one or more relay stations in the plurality of relay station, the signal to be sent of the not weighted process of signal to be sent and M-N road to generate the weighted process in N road, wherein, M is the positive integer more than 1, and N is the positive integer more than zero less than M;

III. the signal to be sent of the not weighted process of signal to be sent and described M-N road of the weighted process in described N road is sent to described next-hop device by the plurality of relay station so that the antenna of signal sending weighted process and the respective antenna of other relay stations that are weighted the relay station of process send corresponding symbol in same time or same frequency.

32. method according to claim 31, it is characterised in that also include before described step II:

I. pending signal is spatially encoded by the one or more relay stations in the plurality of relay station, to generate described M road signal;

Described step II also includes:

N road in the one or more relay stations in-the plurality of relay station described M road signal to generating treats that weighted signal is weighted processing, to generate the signal to be sent of the not weighted process of signal to be sent and described M-N road of the weighted process in described N road.

33. one kind is used for being combined, by many relay stations, the method that the signal of transmission detects to what receive in the network equipment of wireless relay network, it is characterised in that comprise the following steps:

-based on present networks equipment with the plurality of relay station is weighted the channel related information mating between antenna of one or more relay stations that processes, and the one or more relay station being weighted processing is for treating the weight coefficient that weighted signal is weighted, the signal sent for described coupling antenna generates equivalent channels relevant information, wherein, the way of signal to be sent being weighted processing in each relay station is less than total way of signal to be sent, and the antenna of signal sending weighted process and the respective antenna of other relay stations that are weighted the one or more relay station of process send corresponding symbol in same time or same frequency,

-utilize the described equivalent channels relevant information generated to be combined the signal of transmission by the plurality of relay station detect what receive.

34. one kind is used for being combined, by many relay stations, the signal supervisory instrument that the signal of transmission detects to what receive in the network equipment of wireless relay network, it is characterised in that including:

Generation device of equal value, for the channel related information mating between antenna based on present networks equipment with the one or more relay stations being weighted process in the plurality of relay station, and the one or more relay station being weighted processing is for treating the weight coefficient that weighted signal is weighted, the signal sent for described coupling antenna generates equivalent channels relevant information, wherein, the way of signal to be sent being weighted processing in each relay station is less than total way of signal to be sent, and the antenna of signal sending weighted process and the respective antenna of other relay stations that are weighted the one or more relay station of process send corresponding symbol in same time or same frequency,

Detecting device, for utilizing the described equivalent channels relevant information of generation to be combined the signal of transmission by the plurality of relay station detect what receive.