CN101222264A

CN101222264A - Apparatus and method for transmitting frame information in multi-hop relay broadband wireless access communication system

Info

Publication number: CN101222264A
Application number: CNA2008100022842A
Authority: CN
Inventors: 吴昌润; 姜贤贞; 赵在源; 林亨奎; 李成真; 张泳彬; 孙泳文; 陶利·拉凯什
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2007-01-08
Filing date: 2008-01-08
Publication date: 2008-07-16
Anticipated expiration: 2028-01-08
Also published as: KR100972957B1; CN101222264B; KR20080065206A

Abstract

Provided is an apparatus and method for transmitting frame information in a wireless communication system using a relay scheme. In a method for transmitting frame information from an upper node in the wireless communication system, downlink section information for communication with the lower relay station for a relay service is transmitted to a lower relay station at the request of the lower relay station for an initial connection. After the initial connection, frame information for communication with the lower relay station for a relay service is transmitted to the lower relay station through the downlink section.

Description

The Apparatus and method for of transmit frame information in the relaying broadband wireless access communication system using multi

The cross reference of related application

The application requires on January 8th, 2007 to the application that submit to and that be assigned with sequence number No.2007-2216 of Korea S Department of Intellectual Property, in application that submit to and that be assigned with sequence number No.2007-2945 on January 10th, 2007 and in the priority of application under 35 U.S.C § 119 (a) that submit to and that be assigned with sequence number No.2007-12979 on February 8th, 2007, and it all is disclosed in this and merges as a reference.

Technical field

Present invention relates in general to a kind of multi hop relay wireless communication system, relate more specifically to a kind ofly be used for that (BS) or upstream (upper) relay station (RS) send to the Apparatus and method for of downstream (lower) RS from the base station with frame information in the multi hop relay wireless communication system.

Background technology

In the 4th generation (4G) communication system, can reduce radius of society and realize high transfer rate more and the sub-district that holds greater number.Use the centralized Network Design on Time of conventional art infeasible for the 4G mobile communication system.Therefore, the 4G mobile communication system should be considered distributed control and realization, and responds actively the environmental change such as the interpolation of new BS.For this reason, but the 4G mobile communication system should be used the wireless network of self-configuring.

The technology that will be used for the ad-hoc network is introduced the 4G mobile communication system, but is used for the deployment of self-configuring wireless network.Basic example is that a kind of the introducing by the multi-hop relay scheme that will be used for the ad-hoc network used the fixedly multi-hop relay network that cellular network disposed of BS.

Because by direct link executive communication between BS and travelling carriage (MS), so in cellular network, can between BS and travelling carriage, set up Radio Link highly reliably at an easy rate.Yet the stationarity of BS has hindered radio network configuration flexibly, provides effective service thereby be difficult in the radio environment of marked change of the service distribution of experience fluctuation and call number.

For fear of the problems referred to above, adopted a kind of trunking plan, send data via adjacent MS or adjacent BS by multi-hop therein.Multi-hop relay scheme help the conforming fast network that changes reconfigures and helps whole wireless network operations efficient.

In addition, by RS being installed between BS and MS and setting up multi hop relay path via RS thus, this multi-hop relay scheme can provide improved radio channel quality to MS.In addition, this multi-hop relay scheme can cover by Extended Cell, because it can provide high speed data channels to MS in the cell border areas bad from the channel condition of BS.

Fig. 1 shows the configuration of the wireless communication system that uses traditional trunking plan.

With reference to Fig. 1, service area (that is, covering) 101 interior MS (MS1) 110 that are positioned at BS 100 communicate by letter with BS 100 by direct link A.Service area 101 outer the 2nd MS (MS2) 120 that also therefore are in bad channel condition that are positioned at BS 100 communicate by letter with BS 100 by the repeated link of RS 130.

In other words, utilize RS 130, BS 100 can communicate by letter with the MS that is in bad channel condition, and is outer or be positioned at the shadow region of experience from the serious screen effect of building because these MS are positioned at the service area 101 of BS 100.

In order to support to use the repeated link of RS, use the wireless communication system of trunking plan must use structure as described in Figure 2 to come executive communication, this structure optimization ground is the frame structure at the wireless communication system that uses traditional trunking plan.

With reference to Fig. 2, this frame is divided into down link (DL) subframe 200 and up link (UL) subframe 230.DL/UL subframe 200/230 is divided at the first 210/240 of direct link service and the second portion 220/250 of serving at repeated link.

The first 210 of DL subframe 200 comprises BS preamble channel 211, control channel 213 and Traffic Channel 215, is used for from BS by the transmission of direct link to RS and MS.

The second portion 220 of DL subframe 200 comprises preamble channel 221, control channel 223 and Traffic Channel 225, is used for from BS by the transmission of repeated link to MS.

The first 240 of UL subframe 230 is used for from the RS that connects by direct link and MS to BS control information transmission and business datum.The second portion 250 of UL subframe 230 is used for sending control information and business datum to RS from the MS that connects by repeated link.

As mentioned above, in order to support trunking plan, wireless communication system uses frame structure as shown in Figure 2 to come executive communication.Yet the frame structure among Fig. 2 is only supported the double bounce wireless communication system, because the part that this frame structure is not communicated by letter at RS-RS.Therefore, the wireless communication system of use trunking plan need be used to support the frame structure of multi-hop relay business.

Summary of the invention

The objective of the invention is from solving the problems referred to above and/or shortcoming at least in fact, and following at least advantage is provided.Therefore, the Apparatus and method for that the purpose of this invention is to provide a kind of frame structure of the multi-hop relay business that is used for the support of wireless communication system.

The purpose of this invention is to provide a kind of Apparatus and method for from BS to RS transmit frame information that is used in the multi hop relay wireless communication system.

The purpose of this invention is to provide a kind of Apparatus and method for from upstream RS to downstream RS transmit frame information that is used in the multi hop relay wireless communication system.

According to the present invention, a kind of wireless communication system that is used for the scheme that in use continues comprises from the method for upstream node transmit frame information: answer downstream relay station for initial connection requests, to send to downstream relay station at the downlink portion information that junction traffic is used for communicating with downstream relay station, and with initial connection of downstream relay station after, will send to downstream relay station at the frame information that junction traffic is used for communicating with downstream relay station by downlink portion.

According to the present invention, the method that a kind of relay station place that is used for the wireless communication system of the scheme that in use continues obtains frame information comprises: with the initial junction of upstream node, obtain at junction traffic from upstream node and to be used for the downlink portion information that communicates with downstream relay station, and with initial connection of upstream node after, obtain at junction traffic by downlink information and to be used for the frame information that communicates with downstream relay station.

According to the present invention, the equipment of transmit frame information comprises in a kind of wireless communication system of the scheme that in use continues: receiver is used for from the upstream node received signal; Message handling device obtains frame information the control messages that is used for comprising from received signal; Message generator is used to produce the control messages that is used for frame information is sent to downstream node; And transmitter, be used for control messages is sent to downstream relay station.

Description of drawings

From following detailed description in conjunction with the accompanying drawings, above-mentioned and others, feature and advantage of the present invention will become more apparent, in the accompanying drawings:

Fig. 1 shows the configuration of the wireless communication system that uses traditional trunking plan;

Fig. 2 shows the frame structure of the wireless communication system that uses traditional trunking plan;

Fig. 3 shows the frame structure of multi hop relay wireless communication system according to an embodiment of the invention;

Fig. 4 shows the communication process according to the frame structure of the use multi hop relay wireless communication system of the first embodiment of the present invention;

Fig. 5 shows the communication process of the frame structure of use multi hop relay wireless communication system according to a second embodiment of the present invention;

Fig. 6 shows the process of BS transmit frame information in multi hop relay wireless communication according to the present invention system;

Fig. 7 shows in multi hop relay wireless communication according to the present invention system RS from the process of BS received frame information;

Fig. 8 shows the process of RS transmit frame information downstream at the multi hop relay wireless communication middle and upper reaches RS of system according to the present invention;

Fig. 9 shows the process from upstream RS received frame information at the multi hop relay wireless communication middle and lower reaches RS of system according to the present invention;

Figure 10 shows the RS in multi hop relay wireless communication according to the present invention system.

Embodiment

The preferred embodiments of the present invention are described below with reference to the accompanying drawings.In the following description, for the purpose of knowing briefly, known function or structure are not described in detail.

The invention provides a kind of scheme that is used for frame information being sent to from upstream node downstream RS in the multi hop relay wireless communication system.Here, upstream node is represented BS or upstream RS.

Following description is that background is carried out with time division duplex OFDM (TDD-OFDMA) wireless communication system, but the present invention is not limited to this.Therefore, should be expressly understood that the present invention can be applicable to other multi-address radio communication system arbitrarily.

In order to support the multi-hop relay business, wireless communication system uses frame structure executive communication as shown in Figure 3.Yet, should be expressly understood that the present invention is applicable to any other frame structure.

Fig. 3 shows the frame structure according to multi hop relay wireless communication of the present invention system.

With reference to Fig. 3, this frame comprises DL subframe 300 and UL subframe 310.

When this wireless communication system uses double bounce, DL/UL subframe 300/310 is divided into first 301/311 and second portion 303/313.Between first 301/311 and second portion 303/313, there is the 4th part 307/317.Yet, when wireless communication system uses double bounce, do not have the 4th part 307/317.Therefore, first 301/311 and second portion 303/313 can expand to the 4th part 307/317.In first 301/311, the MS in BS and RS and its overlay area communicates.In second portion 303/313, BS and RS communicate.

When the wireless communication system support was served in real time, RS must come repeating signal with a frame, to reduce transmission delay.Therefore, DL/UL subframe 300/310 is divided into first 301/311, second portion 303/313 and third part 305/315.In first 301/311 and third part 305/315, the MS in BS and RS and its overlay area communicates.In second portion 303/313, BS and RS communicate.In other words, on down link, RS utilizes second portion 303 to receive data from BS.Thereafter, utilize third part 305, the data that RS will utilize second portion 303 to receive from BS are relayed to the MS in its overlay area.

As mentioned above, can this subframe be divided into three parts by the size that adjustment has been divided into two parts in the subframe of two parts.Alternatively, can this subframe be divided into three parts by in the subframe that is divided into two parts, adding third part.

When wireless communication system used three or more jumpings, this frame must comprise and be used for communicating by letter between RS the part of (that is, the communication between the RS, for example communicating by letter between upstream RS and the downstream RS).Therefore, be positioned at before or after the second portion 303/313 at the part of communicating by letter between RS.

When the part of communicating by letter between at RS was positioned at before the second portion 303/313, DL/UL subframe 300/310 comprised first 301/311, second portion 303/313 and the 4th part 307/317.In first 301/311, BS and RS communicate by letter with MS in its overlay area.In the 4th part 307/317, upstream RS and downstream RS communicate, and the MS in BS and its overlay area communicates.

When the part of communicating by letter between at RS was positioned at after the second portion 303/313, DL/UL subframe 300/310 comprised first 301/311, second portion 303/313 and the 5th part 309/319.Utilize first 301/311, BS and RS communicate by letter with MS in its overlay area.Utilize second portion 303/313, BS and RS communicate.Utilize the 5th part 309/319, upstream RS and downstream RS communicate, and the MS in BS and its overlay area communicates.In this case, the 5th part 309/319 can be added to after the second portion 303/313.

In addition, can there be the three or more junction traffics part part of junction traffic (that is, at) in the subframe.For example, for junction traffic, can comprise second portion of communicating by letter 303 that is used between BS and the RS and the 4th and the 5th part 307 and 309 that is used for the communication between the RS in the DL subframe 300.Following description comprises that based on subframe the hypothesis of three junction traffics part carries out.Yet, should know understanding, this subframe can comprise three or more junction traffic parts.

Utilize first 301/311, BS and RS communicate by letter with MS in its overlay area.Utilize in second portion 303/313, the 4th part 307/317 and the 5th part 309/319 one of at least, BS and 1 jumps RS and communicates.In this, RS uses and to be not used in other that communicate with BS in second portion 303/313, the 4th part 307/317 and the 5th part 309/319 and to carry out between RS and communicate by letter.In this case, RS utilizes in second portion 303/313, the 4th part 307/317 and the 5th part 309/319 some that any service can be provided.In other words, can in some parts, be set to idle pulley by some RS, so that service is not provided in order to reduce by disturbing between the caused RS of reusing of relay portion.

When the wireless communication system support of three of uses or multi-hop was served in real time, RS must come repeating signal with a frame, to reduce transmission delay.Therefore, DL/UL subframe 300/310 is divided into first 301/311, second portion 303/313, third part 305/315 and the 4th part 307/317 or at the 5th part 309/319 of communicating by letter between RS.Here, the 5th part 309/319 can be included in the third part 305/315.

In the DL of above-mentioned frame structure subframe 300, (sync) channel can be positioned at the beginning or the ending of each junction traffic part synchronously.Here, junction traffic partly is second portion 303, third part 305, the 4th part 307 and the 5th part 309.

When BS or upstream RS used control information to send information (for example, DL medium access protocol (MAP)) about the position of sync channel, this sync channel can be positioned at the center of each junction traffic part.

In addition, BS and upstream RS can comprise control messages in the junction traffic part, the frame control header (FCH) that for example is used to indicate the MAP message of resource allocation information and is used to notify the configuration information of MAP.

In this case, BS and upstream RS can comprise sync channel and control messages in all junction traffic parts.Alternatively, BS and upstream RS can only comprise sync channel and control messages in some subframe parts.

Above-mentioned frame structure in the use wireless communication system has provided the following description to communication plan.

At first, the description that is used for using the subframe that comprises two junction traffics part in the method for carrying out the wireless communication system executive communication to a kind of will have been provided.In the following description, suppose to use second portion 303/313 and the 4th part 307/317 as two junction traffic parts.Yet, should be expressly understood, also can use second portion 303/313 and the 5th part 309/319 as two junction traffic parts.In addition, suppose that this wireless communication system comprises third part 305/315, so RS can support to use the junction traffic of a frame.

In order to support junction traffic, by using first 301/311, second portion 303/313, third part 305/315 and the 4th part 307/317, the BS of wireless communication system and RS can operate as illustrated in fig. 4.The subframe part in the signature 4 sequentially, the mark of the subframe part among itself and Fig. 3 is irrelevant.For example, first 301/311 is equivalent to the first 401/411 among Fig. 4, and the 4th part 307/317 among Fig. 3 is equivalent to the second portion 403/413 among Fig. 4.In addition, the second portion 303/313 among Fig. 3 is equivalent to the third part 405/415 among Fig. 4, and the third part among Fig. 3 305/315 is equivalent to the 4th part 407/417 among Fig. 4.

Fig. 4 shows the communication process of use according to the frame structure of the multi hop relay wireless communication system of the first embodiment of the present invention.In the following description, odd number of hops RS is called first group, is called second group and even number is jumped RS.

With reference to Fig. 4, this frame comprises DL subframe 400 and UL subframe 410.According to time resource, DL/UL subframe 400/410 is divided into first 401/411, second portion 403/413, third part 405/415 and the 4th part 407/417.

Utilize first, second and the 4th part 401,403 and 407 of DL subframe 400, the MS of BS420 in its overlay area sends the DL data.Thereafter, utilize third part 405/415, BS 420 sends to 1 with the DL data and jumps RS 430.Here, in first group, introduced 1 and jumped RS.

In addition, utilize first, second and the 4th part 411,413 and 417 of UL subframe 410, BS 420 receives the UL data from MS.Thereafter, utilize third part 415, BS 420 jumps RS 430 from 1 and receives the UL data.

Utilize the first and the 4th part 401 and 407, the first groups of RS 430 MS in its overlay area of DL subframe 400 to send the DL data.Utilize second portion 403, the first group RSs 430 to second group in included next jump RS 440 and send the DL data thereafter.In addition, utilize 405, the first groups of RS 430 of third part included previous dive RS from second group to receive the DL data.In other words, the data that first group of RS 430 utilizes third part 405 will be received from BS are relayed to upstream RS, perhaps utilize the 4th part 407 that these data are relayed to MS.If first group of RS 430 is 1 jumping RS, then this 1 jumping RS utilizes third part 405 to receive the DL data from BS420.

Utilize the first and the 4th part 411 and 417, the first groups of RS 430 of UL subframe 410 to receive the UL data from MS.Utilize second portion 413, the first group RSs 430 from second group included next jump RS 440 and receive the UL data thereafter.Utilize 415, the first groups of RS 430 of third part that the UL data are sent to previous dive RS included in second group.Here, if first group of RS 430 is 1 jumping RS, then this 1 jumping RS utilizes third part 415 to send the DL data to BS420.

Utilize the first and the 4th part 401 and 407, the second groups of RS 440 MS in its overlay area of DL subframe 400 to send the DL data.Utilize second portion 403, the second group RSs 440 from first group included previous dive RS 430 receive DL data thereafter.Utilize 405, the second groups of RS 440 of third part included next in first group to jump RS and send the DL data.In other words, the data of utilizing 407, the second groups of RS 440 of the 4th part will utilize second portion 403 to be received from upstream RS are relayed to MS.

Utilize the first and the 4th part 411 and 417, the second groups of RS 440 of UL subframe 410 to receive the UL data from MS.Utilize second portion 413, the second group RSs 440 UL data sent to first group in included previous dive RS 430 thereafter.Utilize 415, the second groups of RS 440 of third part to jump RS reception UL data from next that is included in first group.

Next, use description to use the method for the subframe executive communication in wireless communication system that comprises three junction traffic parts.In the following description, suppose second portion 303/313, the 4th part 307/317 and the 5th part 309/319 as three junction traffic parts.

In order to support junction traffic, by using first 301/311, second portion 303/313, the 4th part 307/317 and the 5th part 309/319, the BS of wireless communication system and RS can operate as illustrated in fig. 5.The subframe part in the signature 5 sequentially, the mark of the subframe part among itself and Fig. 3 is irrelevant.For example, first 301/311 is equivalent to the first 501/511 among Fig. 5, and the 4th part 307/317 among Fig. 3 is equivalent to the second portion 503/513 among Fig. 5.In addition, the second portion 303/313 among Fig. 3 is equivalent to the third part 505/515 among Fig. 5, and the 5th part 309/319 among Fig. 3 is equivalent to the 4th part 507/517 among Fig. 5.

Fig. 5 shows the communication process of the frame structure of use multi hop relay wireless communication system according to a second embodiment of the present invention.

With reference to Fig. 5, this frame comprises DL subframe 500 and UL subframe 510.According to time resource, DL/UL subframe 500/510 is divided into first 501/511, second portion 503/513, third part 505/515 and the 4th part 507/517.

Utilize first, second and third part 501,503 and 505 of DL subframe 500, the MS of BS520 in its overlay area sends the DL data.Thereafter, utilize the 4th part 507, BS 520 sends to 1 with the DL data and jumps RS 530 (RS1).

In addition, utilize first, second and third part 511,513 and 515 of UL subframe 510, BS 520 receives the UL data from MS.Thereafter, utilize the 4th part 517, BS 520 receives the UL data from a RS 530.

Utilize the MS of the one 501, the one RS 530 in its overlay area of DL subframe 500 to send the DL data.Utilize second portion 503, the one RSs 530 operate in idle pulley thereafter.In other words, in order to reduce the interference with another RS, a RS 530 does not utilize second portion 503 that any service is provided.

Thereafter, a RS 530 utilizes third part 505 to send the DL data to the 2nd RS 540 (RS2) of subordinate, and utilizes the 4th part 507 to receive the DL data from BS 520.

In addition, utilize 511, the one RS 530 of first of downlink subframe 510 to receive the UL data from MS.Utilize second portion 513, the one RSs 530 operate in idle pulley thereafter.

Thereafter, a RS 530 utilizes third part 515 to receive the UL data from the 2nd RS 540, and utilizes the 4th part 517 to send the UL data to BS 520.

Utilize the MS of 501, the two RS 540 of first in its overlay area of DL subframe 500 to send the DL data.Thereafter, the 2nd RS 540 utilizes second portion 503 to send the DL data to the 3rd RS 550 of subordinate, and utilizes third part 505 to receive DL data (the 2nd RS 540 is subordinated to a RS 530) from a RS 530.

Thereafter, the 2nd RS 540 utilizes the 4th part 507 to operate in idle pulley.In other words, in order to reduce the interference with another RS, the 2nd RS 540 does not utilize the 4th part 507 that any service is provided.

The 2nd RS 540 utilizes the first 511 of UL subframe 510 to receive the UL data from MS.Thereafter, the 2nd RS 540 utilizes second portion 513 to receive the UL data from the 3rd RS 550 (RS3), and utilizes third part 515 that the UL data are sent to a RS 530.Thereafter, the 2nd RS 540 utilizes the 4th part 517 to operate in idle pulley.

Utilize the MS of 501, the three RS 550 of first in its overlay area of DL subframe 500 to send the DL data.Thereafter, the 3rd RS 550 utilizes second portion 503 (the 3rd RS550 is subordinated to the 2nd RS 540) to receive the DL data from the 2nd RS 540, and utilizes third part 505 to operate in idle pulley.In other words, for fear of with the interference of another RS, the 3rd RS 550 does not utilize third part 505 that any service is provided.

Thereafter, the 3rd RS 550 utilizes the 4th part 507 to send the UL data to the 4th RS (RS4), and the 4th RS (RS4) is subordinated to the 3rd RS 550.

The 3rd RS 550 utilizes the first 511 of UL subframe 510 to receive the UL data from MS.Thereafter, the 3rd RS 550 utilizes second portion 513 that the UL data are sent to the 2nd RS540, and utilizes third part 515 to operate in idle pulley.

Thereafter, the 3rd RS 550 utilizes the 4th part 517 to receive the UL data from the 4th RS.

As mentioned above, by using the frame structure shown in Fig. 3, this wireless communication system can be supported the multi-hop relay business shown in Fig. 4 or 5.This wireless communication system can optionally use frame structure according to cell environment parameter (for example, the number of jumping).Therefore, the upstream node in the wireless communication system is transmit frame information to downstream node, makes all nodes (for example, BS, RS and MS) in the system can detect the frame structure of this system.Here, upstream node is represented BS or upstream RS, and downstream node is represented downstream RS or MS.

Hereinafter, use description in wireless communication system, frame information be sent to from upstream node the technology of downstream node.Upstream node can be by using downlink channel descriptor (DCD), medium access control (MAC) message or comprising that the MAP message of the information element (IE) at frame information sends to downstream node with frame information.Below describing to be based on uses MAP message frame information to be sent to the hypothesis of downstream node from upstream node.

Fig. 6 shows the process of BS transmit frame information in multi hop relay wireless communication system according to an embodiment of the invention.

With reference to Fig. 6, in step 601, BS determines whether to receive initial connection request signal from RS.

If receive initial connection request signal from RS, then this process advances to step 603.In step 603, BS produces DL-MAP, and it comprises the information about the junction traffic part that is used in the DL subframe communicating with RS.Thereafter, the BS initial connection signal that will comprise this DL-MAP sends to RS.In other words, BS carries out the initial connection of RS.

At the initial connection to RS, BS carries out the initial connection of RS by the first among Fig. 3 301.Therefore, the DL-MAP in using first 301 to the initial connection of RS after, BS will about the junction traffic that is used for communicating with RS partly the information of (for example, the second portion among Fig. 3) send to RS.Here, BS produces DL-MAP with the form of STC as shown in table 1 (Space Time Coding) DL_ZONE_IE, and it comprises the information about the junction traffic part that is used for communicating with RS.In this case, table 1 comprises the start information that is used in the junction traffic part that communicates with RS after the initial connection of RS.

Table 1

Grammer	Size	Note
Grammer	Size	Note	STC_DL_ZONE_IE()
The DIUC of expansion	4	STC/DL_ZONE_SWITCH＝0×01	STC_DL_ZONE_IE()
The DIUC of expansion	4	STC/DL_ZONE_SWITCH＝0×01	Length	4	Length=0 * 04
The OFDMA symbol offset	8	The beginning in expression zone (begin counting from the frame preamble, and since 0)	Length	4	Length=0 * 04
The OFDMA symbol offset	8		Displacement	2	The optional adjacent sub-carrier displacement of 0b00=PUSC displacement 0b01=FUSC displacement 0b10=optional FUSC displacement 0b11=

Use all SC designators	1	0=does not use all subchannel 1=to use all subchannels
Use all SC designators	1	0=does not use all subchannel 1=to use all subchannels	STC	2	The non-STC 0b01=of 0b00=uses the STC 0b10=of 2/3 antenna to use the STC 0b11=of 4 antennas to use the FHDC of 2 antennas
The matrix designator	2	STC matrix (seeing 8.4.8.1.4) is if (STC==0b01 or STC==0b10) { 0b00=matrix A 0b01=matrix B 0b10=Matrix C 0b11=reservation } (STC==0b11) else if { 0b00=matrix A 0b01=matrix B 0b10-11=reservation }	STC	2
The matrix designator	2		DL_PermBase	5
PRBS_ID	2	Value: 0..2 represents 8.4.9.4.1	DL_PermBase	5
PRBS_ID	2	Value: 0..2 represents 8.4.9.4.1	The AMC type	2	AMC type under indication displacement type=0b11 situation, otherwise, should be set to 0.AMC type (N * M=N bins takes advantage of M symbol): 0b00=1 * 6 0b01=2 * 3 0b10=3 * 2 0b11=keep attention: MS and only support 2 * 3 Band AMC subchannels (AMC type=0b01)
The existence of intermediate code	1	0=does not exist 1=to be present in the first symbol place in STC district	The AMC type	2
The existence of intermediate code	1		Intermediate code promotes	1	0=does not have the 1=of lifting and promotes (3dB)
2/3 day line options	1	The STC that the STC 1=of 2 antennas of 0=use uses 3 antennas selects 2/3 antenna when STC=0b01	Intermediate code promotes	1	0=does not have the 1=of lifting and promotes (3dB)

Dedicated pilot	1	0=broadcast pilot symbol 1=frequency pilot sign is special-purpose.The MS peculiar pilot tone that should only it be happened suddenly is used for channel estimating.
Dedicated pilot	1		Designator	1	1=enables to indicate the relaying zone of last repeated link
Keep the position	3	Be set to zero	Designator	1

Here, STC_DL_ZONE_IE comprises: the information of relevant OFDMA symbol offset is used to indicate the junction traffic starting point partly that communicates with the RS that initially is connected by BS; And the information of relevant designator, be used to indicate STC_DL_ZONE_IE to comprise information about the junction traffic part that communicates with RS.Therefore, when receiving STC_DL_ZONE_IE, RS detects STC_DL_ZONE_IE according to this indicator information and comprises about the junction traffic information partly that is used for and RS communicates.In this, the MS in the BS overlay area comprises the relevant information of distributing to the part of another MS according to indicator information detection STC_DL_ZONE_IE.

In the above-described embodiments, BS comes to send about junction traffic subframe information partly to RS by reuse the STC_DL_ZONE_IE that defines in Institute of Electrical and Electric Engineers (IEEE) 802.16e as shown in table 1ly.

In another embodiment, BS comes to send about junction traffic subframe information partly to RS by use the new information that defines as shown in table 2ly.In this case, BS can produce DL message and UL message.In this case, table 2 comprises about being used to be initially connected to the information of the junction traffic part that communicates with RS after the RS.

Table 2

Logic	Note
Logic	Note	The frame number that works; Number of regions (K); For I=1:K zone transceiver pattern; The OFDMA symbol offset; Duration; The amble that exists; The FCH/MAP that exists; Finish	Zone transceiver pattern: (TX/RX) or (TX/RX/IDLE pattern)

Here, the message that is used for transmit frame information comprises: ' frame number ' information, and the frame information that is used for using message to comprise indicates frame to begin communication; ' number of regions ' information is used for indicating the number of the part that the UL/DL subframe comprised; ' regional transceiver pattern ' information is used for indicating the junction traffic method partly of operating the UL/DL subframe; ' OFDMA symbol offset ' information is used to indicate junction traffic starting point partly; ' duration ' information is used to indicate junction traffic length partly; ' amble ' information of existence is used for indicating the junction traffic part whether to comprise the synch channel; And ' FCH/MAP ' information of existence is used for indicating the junction traffic part whether to comprise control messages (that is, frame control header and mapping).

In table 2, ' regional transceiver pattern ' information can comprise the information about TX pattern, RX pattern or idle pulley, utilizes the operation of junction traffic part with indication BS and RS.

Thereafter, in step 605, BS determines whether to finish with the initial of RS and is connected.

Be connected if finished with the initial of RS, then process advances to step 607.In step 607, BS produces the MAP message that comprises at the frame information of junction traffic.Thereafter, BS sends to RS by the junction traffic part that is used for communicating with RS with this MAP message.

If wireless communication system uses double bounce, then BS produces to comprise at junction traffic and is used for RS UL MAP message with the UL subframe partial information of communicating by letter of RS.For example, BS produces the RS UL MAP message that comprises about the information of the second portion among Fig. 3 313.Here, BS produces the RS ULMAP message that comprises the UL partial information with the UL-ZONE-IE form shown in the table 3.

Table 3

Grammer	Size	Note
Grammer	Size	Note	UL_ZONE_IE()
The DUIUC of expansion	4	UL_ZONE=0 * 04 DUIUC (the DL/UL time interval is used sign indicating number)	UL_ZONE_IE()
The DUIUC of expansion	4		Length	4	Length=0 * 03
The OFDMA symbol offset	7		Length	4	Length=0 * 03
The OFDMA symbol offset	7		Displacement	2	The displacement of the optional PUSC displacement of 0b00=PUSC displacement 0b01=PUSC displacement 0b10=optional PUSC displacement 0b01=0b1110=adjacent sub-carrier

		0b11=keeps PUSC (part is used subcarrier)
		0b11=keeps PUSC (part is used subcarrier)	PUSC UL_IDcellPermBase	7
The AMC type	2	The AMC type of indication under displacement type=0b10 situation, otherwise, should be set to 0.AMC type (N * M=N bins multiply by M symbol): 0b00-1 * 6 0b01-2 * 3 0b10-3 * 2 0b11-keep	PUSC UL_IDcellPermBase	7
The AMC type	2		Use all SC designators	1	0=does not use all subchannel 1=to use all subchannels
Keep	5	Should be set to 0	Use all SC designators	1	0=does not use all subchannel 1=to use all subchannels

Here, UL-ZONE-IE comprises ' OFDMA symbol offset ' information, is used to indicate BS to be used for the starting point of the part that communicates with RS at junction traffic.

In the above-described embodiments, BS will send to RS about the information of junction traffic subframe part by reusing the UL-ZONE-IE of definition as shown in table 3 in IEEE 802.16e.In another embodiment, BS comes to send about junction traffic subframe information partly to RS by using new information as shown in table 2.

Thereafter, BS sends to RS by the junction traffic part that is used for communicating with RS with the UL MAP message that is produced.

If wireless communication system uses three or more jumpings, then BS produces to comprise at junction traffic and is used for MAP message with the UL/DL subframe partial information of communicating by letter of RS.For example, if this RS uses the 4th part 307 or the 5th part 309 among Fig. 3 to communicate with downstream RS, then BS uses the RS DL MAP of second portion 303 that the information about the 4th part 307 or the 5th part 309 is sent to RS.Here, RS DL MAP constitutes shown in table 1 or table 2.

In addition, BS produces RS UL MAP, comprises at junction traffic to be used for the UL subframe partial information of communicating by letter of RS and to be used for the UL subframe partial information of communicating by letter with downstream RS.Here, RS UL MAP constitutes shown in table 2 or table 3.

Thereafter, BS is by being used for the part of communicating by letter of RS DLMAP and UL MAP being sent to RS at junction traffic.

BS uses the junction traffic partial information that sends in step 607 to communicate with RS.In step 609, BS determines whether this subframe partial information changes.

If this subframe partial information changes (step 609), then process advances to step 611.In step 611, BS produces the message of the subframe partial information that comprises change.For example, BS produces the MAP message of the subframe partial information that comprises change with the form of information element (IE).In another embodiment, BS produces the repeater frame control header (R-FCH) of the subframe partial information that comprises change.In another embodiment, BS produces the MAC message or downlink channel descriptor (DCD) message of the subframe partial information that comprises change.

In step 613, BS produces and the subframe of the part that will be used for communicating with RS sends to RS, and this subframe comprises message, and this message comprises the information of change.Thereafter, BS uses the frame structure in the place's change of frame change time that junction traffic is provided by RS.

Yet if this subframe partial information does not change (step 609), process advances to step 613, and wherein BS produces frame, and communicates with RS.

Thereafter, this process finishes.

Fig. 7 shows in multi hop relay wireless communication according to the present invention system RS from the process of BS received frame information.

With reference to Fig. 7, in step 701, RS by the sync channel radio via BS obtain with BS synchronously.

In step 703, RS sends initial connection request signal to BS.For example, RS sends initial connection request signal by the first among Fig. 3 301 to BS.

In step 705, RS determines whether to receive initial connection signal from BS.

If received initial connection from BS, then this process advances to step 707, in step 707, RS detects DL subframe partial information according to the DL-MAP that is comprised in the received signal, and this DL subframe partial information is used for receiving from BS the data of junction traffic after initial the connection.For example, RS is according to the information of the DL-MAP detection that receives by the first among Fig. 3 301 about second portion 303, and this information is used for communicating to realize junction traffic with BS after initial the connection.

In step 709, RS determines whether to have finished with the initial of BS and is connected.

Be connected if finished with the initial of BS, then process advances to step 711, and wherein RS determines whether partly to come the received signal from BS by the junction traffic that is used for communicating with BS.For example, RS determines whether by the second portion among Fig. 3 303 from the BS received signal.

If receive signal from BS, then process advances to step 713, and wherein RS obtains from the signal that receives at junction traffic and is used for the UL/DL subframe partial information of communicating by letter with BS.For example, obtain in RS is comprised from received signal the RS frame control header at junction traffic and be used for the DL subframe of communicating by letter part (for example, second portion 303) information with BS.In another embodiment, RS obtains from RS DL MAP at junction traffic and is used for the DL subframe partial information of communicating by letter with BS.In this, RS can also obtain from RS DL MAP and be used for the DL subframe partial information that communicates with downstream RS.

In addition, RS obtains from RS DL MAP and is used for the UL subframe partial information that communicates with BS and is used for the UL subframe partial information of communicating by letter with downstream RS at junction traffic.

In another embodiment, RS obtains from MAC message or DCD message and is used for the subframe partial information that communicates with BS and is used for the subframe partial information of communicating by letter with downstream RS at junction traffic.

After the frame information that has obtained at junction traffic, the start frame information that RS uses the next basis of the frame information that is obtained to be received from BS is carried out the junction traffic from start frame.

Thereafter, this process finishes.

Fig. 8 shows the process of RS transmit frame information downstream at the multi hop relay wireless communication middle and upper reaches RS of system according to the present invention.

With reference to Fig. 8, in step 801, upstream RS determines whether to receive initial connection request signal from downstream RS.

If from the initial connection request signal that downstream RS receives, then process advances to step 803, its middle and upper reaches RS produces the DL-MAP that comprises about the junction traffic information partly that is used for communicating with downstream RS in the DL subframe.Thereafter, the RS initial connection signal that will comprise DL-MAP in upstream sends to RS.In other words, upstream RS carries out the initial connection of downstream RS.

For the initial connection to downstream RS, upstream RS carries out the initial connection of downstream RS by the first among Fig. 3 301.Therefore, after the DL-MAP in using first 301 is initially connected to downstream RS, upstream RS will send to downstream RS about the information of the junction traffic part (for example, the 4th part 307 or the 5th part 309) that is used for communicating with downstream RS.Here, upstream RS produces the control messages comprise the information that is used for the junction traffic part that communicates with downstream RS with the form shown in table 1 or table 2, and the control messages that is produced is sent to downstream RS.

Thereafter, in step 805, upstream RS determines whether to finish with the initial of downstream RS and is connected.

Be connected if finished with the initial of downstream RS, then process advances to step 807, and its middle and upper reaches RS produces the MAP message that comprises at the frame information of junction traffic.Thereafter, upstream RS sends to downstream RS by the junction traffic part that is used for communicating with downstream RS with MAP message.For example, upstream RS produces to comprise at junction traffic and is used for RS DL MAP with the DL subframe partial information of communicating by letter of downstream RS.Here, RS DL MAP constitutes shown in table 1 or table 2.RS DL MAP can also comprise and be used for the DL partial information that communicates with another downstream RS that is subordinated to this downstream RS.

In addition, upstream RS produces to comprise at junction traffic and is used for RS UL MAP with the UL subframe partial information of communicating by letter of downstream RS.Here, RS UL MAP constitutes shown in table 2 or table 3.RS UL MAP can also comprise and be used for the UL partial information that communicates with another downstream RS that is subordinated to this downstream RS.

In step 809, upstream RS determines whether the subframe partial information changes.

If this subframe partial information changes (step 809), then process advances to step 811, and its middle and upper reaches RS produces the message of the subframe partial information that comprises change.For example, upstream RS produces the MAP message of the subframe partial information that comprises change with the form of information element (IE).In another embodiment, upstream RS produces the R-FCH of the subframe partial information that comprises change.In another embodiment, upstream RS produces the MAC message or the DCD message of the subframe partial information that comprises change.

In step 813, upstream RS produces the subframe be used for the part that communicates with downstream RS and sends it to downstream RS, and this subframe comprises the message of the information that comprises change.Thereafter, upstream RS uses the frame structure in the place's change of frame change time that junction traffic is provided by downstream RS.

Yet if this subframe partial information does not change (step 809), process advances to step 813, and its middle and upper reaches RS produces frame, and communicates with downstream RS.

Thereafter, this process finishes.

Fig. 9 shows the process from upstream RS received frame information at the multi hop relay wireless communication middle and lower reaches RS of system according to the present invention.

With reference to Fig. 9, in step 901, downstream RS by the sync channel radio via upstream BS obtain with upstream RS synchronously.

In step 903, downstream RS upstream RS sends initial connection request signal.In this, downstream RS communicates by first among Fig. 3 301 and upstream RS.

In step 905, downstream RS determines whether to receive initial connection signal from upstream RS.If received initial connection signal, then this process advances to step 907, obtain DL subframe partial information among the DL-MAP that its middle and lower reaches RS is comprised from received signal, this DL subframe partial information is used for receiving from upstream RS the data of junction traffic after initial the connection.For example, RS obtains the information about the 4th part 307 or the 5th part 309 from the DL-MAP of the form shown in table 1 or table 2 that comprised the received signal.If RS is 3 jumping RS, then this RS obtains the information about second portion 303 from the frame structure of Fig. 3.

In step 909, downstream RS determines whether to have finished with the initial of upstream RS and is connected.

Be connected if finished with the initial of upstream RS, then process advances to step 911, and its middle and lower reaches RS determines whether partly to come from upstream RS received signal by the junction traffic that is used for communicating with upstream RS.

If RS receives signal from the upstream, then process advances to step 913, and its middle and lower reaches RS is used for the UL/DL subframe partial information of communicating by letter with upstream RS according to the input that receives at junction traffic.For example, downstream RS detects at junction traffic according to the RS frame that comprised in received signal control header and is used for the DL subframe of communicating by letter part (for example, the 4th part 307 or the 5th part 309) information with upstream RS.In another embodiment, downstream RS detects at junction traffic according to RS DL MAP and is used for the DL subframe partial information of communicating by letter with upstream RS.In this, downstream RS can also detect according to RS DL MAP and be used for the DL subframe partial information that communicates with downstream RS.

In addition, downstream RS detects according to RS UL MAP and is used for the UL subframe partial information that communicates with upstream RS and is used for the UL subframe partial information of communicating by letter with downstream RS at junction traffic.Here, be used for subframe part that RS and downstream RS communicate and to be used for upstream RS identical with the part that another upstream RS that is subordinated to this upstream RS communicates.

In another embodiment, RS obtains from MAC message or DCD message and is used for the subframe partial information that communicates with upstream RS and is used for the subframe partial information of communicating by letter with downstream RS at junction traffic.

After the frame information that has obtained at junction traffic, downstream RS uses the frame information obtained, carries out junction traffic from start frame according to the start frame information that is received from upstream RS.

Thereafter, this process finishes.

In the above-described embodiments, BS or upstream RS will send to downstream RS at the partial information of junction traffic.In the initial junction of downstream RS, BS or upstream RS are used for the DL-MAP of the part that communicates with MS by use, will send to downstream RS about the starting point of junction traffic part and the information of length.

In another embodiment, in the initial junction of downstream RS, BS or upstream RS by use DL-MAP downstream RS information about the starting point of junction traffic part only is provided.After initial the connection, BS or upstream RS can will send to downstream RS about the information of junction traffic length partly by using junction traffic part control messages (for example, RS DL MAP).

Therefore, in initial junction, downstream RS only obtains junction traffic starting point information partly from BS or upstream RS.After initial the connection, downstream RS can obtain the length information of junction traffic part according to starting point information by RS DL MAP.Here, RS DL MAP can comprise the starting point information of the junction traffic part in the next frame.

Hereinafter, use description to the BS of transmit frame information in wireless communication system and the block diagram of RS.BS has identical block diagram with RS, therefore will only describe the block diagram of RS.

Figure 10 shows according to the RS in the multi hop relay wireless communication of the present invention system.

With reference to Figure 10, RS comprises reception (RX) radio frequency (RF) processor 1001, analog-digital converter (ADC) 1003, OFDM (OFDM) demodulator 1005, decoder 1007, message handling device 1009, controller 1011, message generator 1013, encoder 1015, OFDM modulator 1017, figure pattern transducer (DAC) 1019, sends (TX) RF processor 1021, switch 1023 and timing controller 1025.

Timing controller 1025 is based on the handover operation of frame synchronization control switch 1023.For example, in the RX of frame part, timing controller 1025 control switchs 1023 make antenna be connected to RX RF processor 1001.In the TX of frame part, timing controller 1025 control switchs 1023 make antenna be connected to TX RF processor 1021.

In the RX of frame part, RX RF processor 1001 will become base-band analog signal by the RF conversion of signals that antenna receives.1003 couples of ADC are received from the analog signal sampling of RX RF processor 1001, so that this analog signal conversion is become sampled data (digital signal).1005 pairs of sampled datas of ofdm demodulator are carried out the fast Fourier transform (FFT) processing, with the output frequency domain data.

Decoder 1007 is selected the data of useful subcarrier from this frequency domain data.Decoder 1007 carries out the demodulation sign indicating number with predetermined modulation and encoding scheme (MCS) level to selected data.

1009 pairs of control messages from decoder 1007 of message handling device are handled, and result is offered controller 1011.For example, when initial the connection, message handling device 1009 provides the DL MAP that comprises from the frame information of the control messages that is received from BS or upstream RS for controller 1011.In addition, after initial the connection, message handling device 1009 provides the control messages (R-FCH, R-DL-MAP or R-UL-MAP) that comprises from the frame information of the control messages that is received from BS or upstream RS by the part at junction traffic for controller 1011.

Controller 1011 obtains frame information by the information that analysis is received from message handling device 1009.For example, in initial junction, controller 1011 obtains the start information of the DL part that is used for communicating with BS or upstream RS from DL MAP.After initial the connection, controller 1011 obtains from the control messages that partly receives by junction traffic at junction traffic and is used for the frame information of communicating by letter with BS or upstream RS.In addition, controller 1011 obtains from the control messages that partly receives by junction traffic and is used for the frame information that communicates with downstream RS.

In the TX part, message generator 1013 uses the various information that are received from controller 1011 to produce message, and this message is offered the encoder 1015 of physical layer.For example, be used for RS downstream and provide the RS junction, downstream of frame information, message generator 1013 to produce comprising the DL MAP that is used for the subframe partial information that after the initial connection of downstream RS, communicates with RS.After initial the connection, message generator 1013 produces to comprise at junction traffic and is used for control messages with the frame information of communicating by letter of downstream RS.

Encoder 1015 is encoded to the message that is received from message generator 1013 according to the MCS level and is modulated.1007 pairs of OFDM modulators receive the data of own coding device 1015 and carry out the inverse fourier transform processing, with output sampled data (OFDM symbol).DAC 1023 converts this sampled data to analog signal.The base-band analog signal that TX RF processor 1021 will be received from DAC 1023 converts the RF signal by antenna transmission to.

Among the module of the operation that is used to carry out the RX/TX part, except message generator 1013, all modules of BS are all with the pattern operation identical with RS.

Message generator 1013 produces the message that is used for frame information is sent to RS.For example, in initial junction, message generator 1013 produces the DL MAP that comprises DL subframe partial information, so as after initial the connection, to be used at junction traffic with the communicating by letter of RS.

After initial the connection, message generator 1013 produces the control messages that comprises frame information, is used for communicating by letter at junction traffic and RS.Promptly be exactly, message generator 1013 produces the RS frame header (R-FCH) that comprises DL subframe partial information, is used for next frame communicating by letter at junction traffic and RS.In addition, message generator 1013 produces the RS UL MAP that comprises UL subframe partial information, is used for communicating by letter at junction traffic and RS.If wireless communication system uses three or more jumpings, then message generator 1013 produces the RS DL MAP that comprises DL subframe partial information, is used for communicating by letter of RS and downstream RS.In addition, message generator 1013 produces the RS UL MAP that comprises UL subframe partial information, is used for communicating by letter of RS and downstream RS.

Here, be used for frame information is sent to downstream RS is included in frame partial information that above-mentioned control messages comprised and the sync channel that is comprised the subframe part with the control messages that realizes junction traffic positional information from BS or upstream RS.

In the above-described embodiments, BS or upstream RS constitute the MAP that comprises the junction traffic partial information with the form of information element, and the MAP that is constituted is sent to downstream RS.In another embodiment, when BS or upstream RS use MAC message or DCD message transmission junction traffic partial information, can constitute MAC message or DCD message with form as shown in table 2.

As mentioned above, the present invention is according to the cell environment parameter, send and detect the junction traffic partial information in multi-hop wireless communication system, making thus can be according to cell environment parameter adaptive ground configuration frame, and exactly corresponding frame information is decoded according to the frame information that is constituted.

Although illustrate and described the present invention with reference to certain preferred embodiment of the present invention, it should be appreciated by those skilled in the art that, under the prerequisite of the spirit and scope of the present invention that do not deviate from claims and limited, can carry out various changes to the present invention in form and details.

Claims

1. method that is used for the wireless communication system of the scheme that in use continues from upstream node transmit frame information comprises:

Answer downstream relay station at initial connection requests, will send to downstream relay station at the downlink portion information that junction traffic is used for communicating with downstream relay station; And

With initial connection of downstream relay station after, will send to downstream relay station at the frame information that junction traffic is used for communicating with downstream relay station by downlink portion.

2. method according to claim 1 wherein, sends to downstream relay station with downlink portion information and also comprises:

Produce first control messages, the medium access protocol MAP message that described first control messages comprises the downlink portion information of one of following form: downlink channel descriptor DCD, medium access control MAC message and comprises the downlink portion information of information element IE form; And

Described first control messages is sent to downstream relay station.

3. method according to claim 2, wherein, described first control messages also comprise following one of at least: OFDM OFDMA symbolic information is used to begin the downlink portion that communicates at junction traffic and downstream relay station; The OFDMA symbol lengths information of downlink portion; Send and receive the TX/RX pattern information, be used for indicating downstream relay station to operate in TX pattern, RX pattern and the idle pulley which in downlink portion; Be used for indicating downlink portion whether to comprise the information of control messages; Be used for indicating downlink portion whether to comprise the information of synchronizing channel; The positional information that is used for the included synchronizing channel of frame number information that downstream relay station begins to communicate by letter by downlink portion and downlink portion.

4. method according to claim 1, wherein, described upstream node is base station or upstream relay stations.

5. method according to claim 1 wherein, sends to downstream relay station with frame information and also comprises:

Produce second control messages, what described second control messages comprised one of following form is used for the downlink information part that communicates with downstream relay station at junction traffic: downlink channel descriptor DCD, medium access control MAC message and the medium access protocol MAP message that comprises the downlink portion information of information element IE form; And

Described second control messages is sent to described downstream relay station.

6. method according to claim 5, wherein, it is one of at least following that described second control messages comprises: OFDM OFDMA symbolic information is used to begin the uplink portion that communicates with downstream relay station and is used for the uplink portion that downstream relay station and another downstream relay station that is subordinated to described downstream relay station communicate; The OFDMA symbol lengths information of uplink portion; Send and receive the TX/RX pattern information, be used for indicating downstream relay station to operate in TX pattern, RX pattern and the idle pulley which in uplink portion; Be used for indicating uplink portion whether to comprise the information of control messages; Be used for indicating uplink portion whether to comprise the information of synchronizing channel; Be used for the frame number information that downstream relay station uses the information of uplink portion to begin to communicate by letter; And the positional information of included synchronizing channel in the uplink portion.

7. method according to claim 5, also comprise producing the 3rd control messages, described the 3rd control messages comprise one of following form, be used for the downlink portion information that downstream relay station and another downstream relay station that is subordinated to described downstream relay station communicate: DCD, MAC message and the MAP message that comprises the downlink portion information of information element IE form.

8. method according to claim 7, wherein, described the 3rd control messages also comprise following one of at least: OFDM OFDMA symbolic information is used to begin the downlink portion that downstream relay station and another downstream relay station that is subordinated to described downstream relay station communicate; The OFDMA symbol lengths information of downlink portion; Send and receive the TX/RX pattern information, be used for indicating downstream relay station to operate in TX pattern, RX pattern and the idle pulley which in downlink portion; Be used for indicating downlink portion whether to comprise the information of control messages; Be used for indicating downlink portion whether to comprise the information of synchronizing channel; Be used for the frame number information that downstream relay station uses the information of downlink portion to begin to communicate by letter; And the positional information of included synchronizing channel in the downlink portion.

9. method according to claim 1 also comprises:

Frame information and downstream relay station that use sends to downstream relay station communicate;

Whether the subframe that is identified for the frame that communicates with downstream relay station changes;

If described subframe changes, then produce the 4th control messages of the change information of the structure that comprises described subframe; And

Described the 4th control messages is sent to downstream relay station.

10. method according to claim 9, wherein, described the 4th control messages comprises the change information of structure of the subframe of one of following form: frame control header, comprise medium access protocol MAP message, medium access control MAC message and the downlink channel descriptor DCD of the downlink portion information of information element form.

11. method according to claim 9, wherein, described the 4th control messages comprises the positional information of synchronizing channel.

12. a relay station place that is used for the wireless communication system of the scheme that in use continues obtains the method for frame information, comprising:

With the initial junction of upstream node, obtain at junction traffic from described upstream node and to be used for the downlink portion information that communicates with described upstream node; And

With initial connection of upstream node after, obtain at junction traffic by described downlink portion information and to be used for the frame information that communicates with described upstream node.

13. method according to claim 12, wherein, described upstream node is base station or upstream relay stations.

14. method according to claim 12 wherein, is obtained downlink portion information and is also comprised:

Upstream node detects whether receive first control messages, the medium access protocol MAP message that described first control messages comprises one of following form downlink portion information: downlink channel descriptor DCD, medium access control MAC message and comprises the downlink portion information of information element IE form; And

If receive described first control messages, then from described first control messages, obtain and be used for the downlink portion information that communicates with upstream node.

15. method according to claim 14, wherein, described first control messages also comprise following one of at least: OFDM OFDMA symbolic information is used to begin be used for the downlink portion that communicates with downstream relay station at junction traffic; The OFDMA symbol lengths information of downlink portion; Send and receive (TX/RX) pattern information, be used for indicating downstream relay station to operate in TX pattern, RX pattern and the idle pulley which in downlink portion; Be used for indicating downlink portion whether to comprise the information of control messages; Be used for indicating downlink portion whether to comprise the information of synchronizing channel; Be used for the frame number information that downstream relay station begins to communicate by letter by downlink portion; And the positional information of included synchronizing channel in the downlink portion.

16. method according to claim 12 wherein, is obtained frame information and is also comprised:

Determine whether to receive control messages by the downlink portion that is used at junction traffic communicating with upstream node; And

If the medium access protocol MAP message that receives second control messages of the uplink portion information that comprises one of following form: downlink channel descriptor DCD, medium access control MAC message by downlink portion and comprise the downlink portion information of information element IE form then detects at least one of the uplink portion information that is used for the ascender information that communicates with upstream node and is used for communicating with downstream relay station according to described second control messages.

17. method according to claim 12, wherein, described second control messages also wrap also comprise following one of at least: OFDM OFDMA symbolic information is used to begin the uplink portion that is used for the uplink portion that communicates with upstream node and is used for communicating with downstream relay station; The OFDMA symbol lengths information of uplink portion; Send and receive (TX/RX) pattern information, be used for indicating downstream relay station to operate in TX pattern, RX pattern and the idle pulley which in uplink portion; Be used for indicating uplink portion whether to comprise the information of control messages; Be used for indicating uplink portion whether to comprise the information of synchronizing channel; Be used for the frame number information that downstream relay station uses the information of uplink portion to begin to communicate by letter; And the positional information of included synchronizing channel in the uplink portion.

18. method according to claim 16, also comprise: if the medium access protocol MAP message that the 3rd control messages comprises the downlink portion information of one of following form: downlink channel descriptor DCD, medium access control MAC message and comprises the downlink portion information of information element IE form then detects according to described the 3rd control messages and is used for the downlink portion information that communicates with downstream relay station.

19. method according to claim 18, wherein, described the 3rd control messages also comprise following one of at least: OFDM OFDMA symbolic information is used to begin the downlink portion that communicates with downstream relay station; The OFDMA symbol lengths information of downlink portion; Send and receive (TX/RX) pattern information, be used for indicating downstream relay station to operate in TX pattern, RX pattern and the idle pulley which in downlink portion; Be used for indicating downlink portion whether to comprise the information of control messages; Be used for indicating downlink portion whether to comprise the information of synchronizing channel; Be used for the frame number information that downstream relay station uses the information of downlink portion to begin to communicate by letter; And the positional information of included synchronizing channel in the downlink portion.

20. method according to claim 12 also comprises:

Use communicates from frame information and the described upstream node that upstream node obtains;

Determine whether to receive the 4th control messages from upstream node, described the 4th control messages comprises at least one in following: frame control header; The medium access protocol MAP message, medium access control MAC message and the downlink channel descriptor DCD that comprise the downlink portion information of information element IE form; And

If receive described the 4th control messages, then detect the change information of the subframe structure that is used for the frame that communicates with upstream node according to described the 4th control messages.

21. the equipment of the relay station of a wireless communication system that is used for using trunking plan, described equipment comprises:

Receiver is used for from the upstream node received signal;

Message handling device obtains frame information the control messages that is used for comprising from received signal;

Message generator is used to produce the control messages that is used for frame information is sent to downstream node; And

Transmitter is used for control messages is sent to downstream relay station.

22. equipment according to claim 21, wherein, described message handling device

With the initial junction of upstream node, from the control messages that is received from upstream node by receiver, obtain the frame information that is used for the downlink portion that communicates with upstream node at junction traffic; And

With initial connection of upstream node after, from the control messages that receives by downlink portion, obtain the frame information that is used for the frame information that communicates with upstream node and is used for communicating at junction traffic with downstream relay station.

23. equipment according to claim 22, wherein, the described control messages medium access protocol MAP message that comprises the frame information that is used for junction traffic of one of following form: downlink channel descriptor DCD, medium access control MAC message and comprise the downlink portion information of information element IE form.

24. equipment according to claim 21, wherein, described message generator

With the initial junction of downstream relay station, produce and comprise the control messages that is used for the down link frame information that communicates with downstream relay station at junction traffic; And

With initial connection of downstream relay station after, produce and comprise the control messages that is used for the frame information that communicates with downstream relay station and is used for the frame information that described downstream relay station and another downstream relay station that is subordinated to described downstream relay station communicate at junction traffic.

25. equipment according to claim 24, wherein, the described control messages medium access protocol MAP message that comprises the frame information that is used for junction traffic of one of following form: downlink channel descriptor DCD, medium access control MAC message and comprise the downlink portion information of information element IE form.