CN101507144B - Wireless data frame structure between nodes - Google Patents

Wireless data frame structure between nodes Download PDF

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Publication number
CN101507144B
CN101507144B CN200780030595.3A CN200780030595A CN101507144B CN 101507144 B CN101507144 B CN 101507144B CN 200780030595 A CN200780030595 A CN 200780030595A CN 101507144 B CN101507144 B CN 101507144B
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section point
node
relaying
relaying section
radio resource
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CN101507144A (en
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朱晨曦
陈伟鹏
乔纳森·阿格雷
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Fujitsu Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2603—Arrangements for wireless physical layer control
    • H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations

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Abstract

The invention provides transmitting at same time first and relay second node preambles aligning data frames among the first node and the relay second node wirelessly communicating in a channel and transmitting by the first node one or more radio resource control parameters managing radio resources of the wireless communicating in the channel among the aligned first node and the relay second node. A relay resynchronization amble sequence managing synchronizing in the channel the first node frames with the relay second node frames is periodically transmitted to the relay second node.

Description

Wireless data frame structure between node
Reference to related application
The application relates to and requires the applying date is that August 18, application number in 2006 are 60/822,861, application people be ChenxiZhu, Wei-PengChen and JonathanAgre and the priority that is called the U.S. Provisional Patent Application of " wireless network management (MANAGING A WIRELESS NETWORK) ", and relate to and require to submit on August 18th, 2006, sequence number is 60/822, the priority of 791 U.S. Provisional Application, and require to submit on July 31st, 2007, sequence number is the priority of U.S.'s non-provisional application of 11/831,108.
Technical field
In literary composition, disclosed execution mode relates to radio communication device/network frame structure.
Background technology
In wireless cellular network, the user in community diverse location experiences different signal qualitys conventionally, and therefore experiences service quality (QoS) in various degree.This is because user's channel quality depends on many factors, comprises path loss, shielding and interference.The user who is positioned at cell edge is often subject to from the strong jamming of neighbor cell and observes lower dry the making an uproar than (CINR) of carrying.In urban environment, large building has caused serious obstruction to the user after it, produces sometimes coverage hole.The signal of building or tunnel internal penetrates and decays and also seriously reduced signal quality.By improving transmitting power or changing antenna structure, conventionally cannot improve the signal quality of these being served to not enough region.This situation will be improved in the size and the more base station of configuration that reduce community, but because access limitation and the corresponding high operating cost of the cell site to traditional and wired back haul link makes this scheme normally impossible.
Summary of the invention
The one side of the execution mode of discussing in literary composition is to specify the Radio Resource of the Radio Resource of the radio communication in management individual channel to control parameter between frame structure alignment or synchronous first node and relaying Section Point to the three nodes, and periodically by relaying more synchronous code-guiding sequence be sent to relaying Section Point, this relaying is aliging in the individual channel of synchronous code-guiding sequence management first segment point frame and relaying second section point frame again.Execution mode is not restricted to individual channel, but according to the aspect of execution mode, has specified Radio Resource to control parameter and by having a plurality of channels between the relaying node that synchronous code-guiding sequence is safeguarded the arrangement of frame structure again at these for it.
According to the one side of execution mode, radio communication is carried out within comprising single base station (BS) MMR community, radio communication is carried out by one or more relay stations (RS) and one or more mobile radio stations in base station, and execution mode provides the better beneficial effect of coverage of the cell area of the higher and single BS service of cell capacity.According to another execution mode, network comprises many BS and many RS, and wherein all BS and RS are synchronous in its frame structure.Another kind of beneficial effect is to have formed in the cell area that a kind of single BS in individual channel covers to set the method for RS, and makes the angle from MS, and the operation of RS there is no different from the operation of BS.
With reference to having formed the accompanying drawing of a specification part, from hereinafter illustrating more comprehensively the details with claimed structure and operation, can understand above aspect and advantage with other, wherein in institute's drawings attached, like numerals will refers to like.
Accompanying drawing explanation
Fig. 1 is according to the topological diagram of execution mode MMR community.
Unjustified up link in Tu2Wei MMR community and the tdd frame structure chart in downlink communication.
The flow chart of Fig. 3 for distributing between wireless communication node according to a kind of amount of radio resources by individual channel of execution mode.
Fig. 4 is according to the up link in a kind of execution mode MMR community and the structure chart of the tdd frame in downlink communication.
Fig. 5 is according to the up link in a kind of use MMR community of execution mode and the control message of the tdd frame structure in downlink communication and the temporal correlation figure of data flow.
Fig. 6 be according to a kind of execution mode at the functional-block diagram that uses the equipment of wireless communication frame structure between the node of individual channel.
Fig. 7 is according to the functional-block diagram of the processing layer in a kind of Fig. 6 equipment of execution mode (software and/or computing hardware).
Embodiment
Execution mode with between radio communication device (wireless device/node), share relevant as same frequency spectrum or the same frequency band (channel) of radio resource, these radio communication devices according to one or more in TDD and/or FDD system with individual channel radio communication each other.According to the aspect of execution mode, wireless communication data frame structure installs relaying in the number tape that information is provided between first device and one or more the 3rd devices by relaying second.According in access to wireless communication network can employing wireless communication network connecting system (MAC/ physical layer system), Radio Resource refers to wireless communication bandwidth.Bandwidth can comprise sub-carriers/subchannels (if any), symbol, time slot, transmitting power, frequency or a part wherein or its combination in any.In band, refer to that the first equipment and relaying the second equipment are between the cascade wireless communication link between one or more the 3rd equipment, use similar frequency bands and do not need the individual channel of other frequency range.According to execution mode aspect, any equipment of combine digital baseband functions and radio transmitting/receiving function between two equipment (that is, carrying out suitable signal/data processing) can be trunking.According to execution mode aspect, first node is via non-one or more the 3rd node of directly controlling of relaying Section Point.
Execution mode can be contained in any cordless communication network that uses time-division multiplex (MUX) in media access control (MAC) and/or physical layer.For example, these execution modes are not limited to but can be included in, in any broadband wireless access standard such as (being not limited to) IEEE802.16 standard (be also referred to as global inserting of microwave and can operate mutually (WIMAX) network), wherein in MAC and/or physical layer, stipulated the combination of various cordless communication network access criterias and/or these standards, time division multiplexing (TDD) system of these cordless communication network access criterias based on adopting (being not limited to) time division multiple access (TDMA) wherein, code division multiple access (CDMA) system, the combination of frequency division multiple access (FDMA) and/or OFDM (FDMA) or above scheme.
In WiMAX wireless cellular network, using radio relay is the effective ways that improve subscriber signal quality, it replaces to a plurality of shorter high quality links via one or more relay station (RS) by long between base station (BS) and travelling carriage/subscriber board (MS/SS) (being after this called MS) and low-quality communication link.Because relay station does not need its oneself wired backhaul, and it does not have global function BS complicated conventionally, thus the layout of relay station compare traditional BS with operation more cheap.The service that relay station can be expanded BS originally cannot obtain the blind area of service to cover user, and has expanded the efficient cell size of BS.Relay station can also be used for improving that carrying of user is dry makes an uproar than (CINR) and service quality (QoS) and improve cell capacity.
Relaying technique can be according to the IEEE802.16 standard being included in 802.16j relaying working group.In IEEE802.16 standard, relay station communicates with BS as MS, and communicates with MS as (being called RS microcellulor) BS in its overlay area.Whole service coverage areas of BS and all corresponding RS can be known as based on mobile multi-hop relaying community (MMR community or MMR network).There is the relay station of 3 types: fixedly RS, nomadic RS and mobile RS.The RS of first two type for good and all or be fixed on certain position with the time more much longer than common user conversation.Conventionally mobile RS is arranged on moving vehicle and to those MS in vehicle service is provided.Execution mode relates to all types of RS.
Execution mode is applied in following cordless communication network, and this channel radio communication network has 3 or the more node communicating with wireless mode of shared single frequency.In an illustrative embodiments, Fig. 1 is the topological diagram with BS 102 and two relay stations (RS1 and RS2) 104a, 104b MMR community 100.BS 102 directly serves MS bSmS in group 1～6106a～f (MS 1106a and MS 2106b).Two relay station (RS 1104a, RS 2104b) be used for expanding covering and the service MS of BS 102 rS1(MS 3106c and MS 4106d) and MS rS2(MS 5106e and MS 6106f) the MS in group 3～6106C～f.MMR community 100 comprises the communication coverage area of BS 102 and all RS 104.Repeated link 110 refers between BS and RS or main RS and it is from the single communication link (uplink/downlink) between RS.MS access link 112 refers to the single communication link (uplink/downlink) that relates to MS 106, for example single communication link between RS and MS or between BS and MS.The communication coverage area (uplink/downlink) of RS microcellulor 108 finger BS 102, single RS 104 and the MS 106 that directly served by this single RS 104.Uplink communication refers to from MS to RS to the communication of BS or MS directly to the communication of BS again, downlink communication refer to from BS to RS again the communication of MS or from BS directly to the communication of RS.
Frame structure in MMR community 100 determines how BS 102 and RS 104 share Radio Resource.This is most important for MS 106 provides the ability of QoS for MMR community 100.Because RS 104 provides relay function between BS 102 and MS 106 (and other possible RS 104), so RS 104 can be as MS 106 communicate with BS 102, and can be as BS 102 and MS 106 communicate.If RS 104 only has single wave point, RS 104 must be at it
Figure G2007800305953D00051
interface and
Figure G2007800305953D00052
between interface, switch its electric wave.Therefore need
Figure G2007800305953D00053
with between communication time-domain multiplexed.
Non-alignment up link in Tu2Wei MMR community and the tdd frame structure chart in downlink communication.In Fig. 2, BS 102 and RS 104 transmit lead code at different time.All Transfer Windows: BS → RS, RS → MS rS, RS → BS and MS rS→ RS has the fixing duration, and cannot adjust by the flow based in RS Microcell 108.More specifically ，MMR community 100, BS 102 periodically transmit conventional preamble sequence 202 in the beginning of each frame.This lead code 202 is the beginning that whole MMR community 100 has defined tdd frame.Lead code 202 is used by MS 106, so as to network position and realization and BS 102 between synchronize.For those MS 106 to cannot directly receiving from BS 102 provide service, RS 104 need to be these MS 106 services as conventional BS 102, is included in transmission lead code 202 (203) in each frame.The lead code 202 that RS 104 transmits defines the time relationship between BS frame 204 and RS frame 206 with respect to the position of BS lead code 202.Such as, the position of lead code 202 can determine that the downlink subframe 206 of RS 104 to what extent can be used for transmitting to its MS 106 by RS 104, and the uplink sub-frames 208 of RS 104 to what extent can be used for transmitting to RS 104 by these MS 106.Because MS 106 expects lead code 202 in fixed position, so RS 104 cannot arbitrarily change its frame.Thereby causing can be used for immobilizes for the MS 104 in RS Microcell 108 provides the amount of radio resources of service, namely Transfer Window BS → RS, RS → MS rS, RS → BS, MS rS→ RS immobilizes, and the traffic requirement adjustment that the Transfer Window in the individual channel between BS, RS and MS cannot be based in RS Microcell 108.This may limit the dynamic flexibility of Liao MMR community 100 interior support.This also may force MS that its frame is arranged and changed at MS when the coverage area of BS moves to the coverage area of RS.At all BS, have in some networks of frame sequential of alignment, this is undesirable, because may cause service disruption in the MS search time that it need to be longer and the handoff procedure between BS and RS.
According to the one side of execution mode, cordless communication network ShiMMR community 100, and first device is BS 102, relaying the second device is RS 104, and the 3rd device is MS 106 (such as radio telephone, wireless personal digital assistant, wireless media player).Execution mode provides frame structure at first device and relaying second device of use individual channel radio communication between one or more individual the 3rd devices, and this frame structure is specified/defined and safeguards when when first device install to the 3rd communication (transmission/reception) plan (communication schedule) transmitting to relaying the second device transmission and/or relaying the second device.In an illustrative embodiments, between first device and relaying the second device and relaying the second device to the signal plan in the individual channel between the 3rd device align and dynamically (in real time) maintain and align.According to another kind of execution mode, according to application standard, from alignment, dynamically signal plan is adjusted.
The flow chart of Fig. 3 for the amount of radio resources in the individual channel between wireless communication node being adjusted according to a kind of execution mode.In operation 302, at the first node that carries out trunking traffic in number tape by relaying Section Point, between one or more the 3rd nodes, start synchronizing network.Such as, first node transmits start frame leading code (lead code), and relaying Section Point is sent to three node (such as subscriber station) at synchronization by lead code at individual channel (in band).Synchronizing network refers to the network when transmitting all down links that first and relaying Section Point that the lead code of first node and the lead code of relaying Section Point align in individual channel transmit and uplink frame at same time.According to the one side of execution mode, relaying Section Point is configured to have to the function of relay station.According to the one side of execution mode, the data frame alignment between first node control or coordination and relaying Section Point.In an illustrative embodiments, in ， MMR community 100, first node is BS 102, and relaying Section Point is RS 104, and the 3rd node is MS 106.
In operation 304, (in real time) specific radio resource control parameters between synchronous first node and relaying Section Point and the 3rd node dynamically, this Radio Resource is controlled the Radio Resource of the interior radio communication of parameter management individual channel.According to the one side of execution mode, for further managing radio resources, comprise relay synchronization, repetitive operation at any time 302.RRM refer to Radio Resource and/or use the radio communication of Radio Resource communication, distribution (distribute/divide), initialization/configuration, configure again, adjust, safeguard, test/control of carrying out such as simulate.
In operation 306, first node periodically by relaying more synchronous code-guiding sequence be sent to relaying Section Point, relaying is synchronizeing between first segment point frame and relaying second section point frame in synchronous code-guiding sequence management individual channel again.According to the one side of execution mode, relaying can be sent to relay station in the various positions (the namely any position from the beginning to ending) of synchronous code-guiding sequence in downlink communication chain circuit-switched data frame again.Relaying more synchronous code-guiding sequence (the synchronous code-guiding sequence of intermediate relay) refers to any code-guiding sequence except start frame leading code (lead code), this code-guiding sequence carries out synchronous again to first node and relaying Section Point, and can be sent to relay station in the various positions (the namely any position from the beginning to ending) in downlink communication chain circuit-switched data frame.Such as, relaying more synchronous code-guiding sequence can be in the middle near communication link subframe as intermediate code or in the ending of communication link subframe or be transmitted as rear leading code or as its any combination near ending place.According to the one side of execution mode, such as the application requires the relevant provisional application 60/822 of its priority, 861 and be that ChenxiZhu, Wei-PengChen and JonathanAgre and name are called the relevant outstanding formal patent application 11/830 altogether of " NEW AND LEGACY WIRELESSCOMMUNICATION DEVICE COEXISTING AMBLE SEQUENCE " as the application people on the application basis, 929 have described a kind of method of structure and the synchronous code-guiding sequence of broadcast relay, and its content is incorporated into this by reference.
Fig. 4 is according to the up link in a kind of execution mode MMR community and the tdd frame structure chart in downlink communication.Yet execution mode is not limited to MMR community, but can offer any cordless communication network.In Fig. 4, execution mode provides a kind of new frame structure, and RS 104 is sending with BS 102 the time transmission lead code 202 that lead code 202 is identical, so the frame in the frame in BS102 and RS 104 overlaps.Allow the frame of BS 102 and the frame of RS 104 align also may to be conducive to MS 106 switching of (such as 108, MMR community, RS Microcell 100 etc.) to next community, this is because whole network may be synchronous.In downlink subframe, first RS receives the transmission from BS from subframe first, then by relevant information is sent to MS in downlink subframe second portion, relevant information is forwarded to MS.In uplink sub-frames, first RS receives from its MS, then by information is sent to BS in uplink sub-frames second portion, this information is forwarded to BS from MS.BS is by RS trunk information back and forth, and sends to the MS that those BS cannot directly arrive (or do not use in the situation of relaying and can not arrive with sufficiently high signal quality).MS 106 the operation of MS 106 is not described, because cannot distinguish the difference between BS 102 and RS 104.In network, all BS transmit lead code with RS so that having the fact of synchronization frame sequential can allow MS search and connect with the RS as BS simultaneously, and this is because the operation of RS and the operation of BS are indiscriminate.
In Fig. 4, the operation of BS 102 and RS 104 is as follows.Suppose operation in BS 102 Zheng MMR communities 100.When opening for the first time RS 104, RS 104 is, and primary image MS 106 is the same first with reception/seek mode, operates.RS 104 searches the lead code 202 from BS102 as conventional MS 106.After RS 104 is synchronizeed with BS 102, RS 104 experiences initial ranging and access as MS 106, and carries out any other message (comprising checking, mandate, configuration messages etc.).After these initialization, RS 104 is switched to RS operational mode, and RS 104 starts transmission for RS 104 lead codes 202 of MS 106, to carry out radio communication.Sending with BS 102 time transmission RS 104 lead codes 202 that lead code 202 is identical.RS 104 can (according to the request from BS) transmit RS 104 lead codes 202 in one group of subcarrier identical or different from BS 102 and with the code-guiding sequence identical or different with BS 102.In Fig. 4, BS102 frame and MS 104 frames are alignment in time each other.In the beginning of downlink subframe, BS and RS are sent to its relevant MS by its lead code 202 and UL/DL-MAP (downlink/uplink MAP) separately.UL/DL MAP message refers to any radio resource control information of the parameter that comprises management of wireless communications Radio Resource.
According to the one side of execution mode, it is the independent relaying MAP message of relaying Section Point that first node (such as BS 102) transmits destination.The destination of the UL/DLMAP message of typically, being managed by first node is the 3rd node (MS 106a, 106b) of directly communicating by letter with first node.In the situation that thering is relaying Section Point between first node and the 3rd node, relay map message to Section Point is sent to relaying Section Point ( RS 104a, 104b), to control transmission and reception between first node and relaying Section Point.According to the one side of execution mode, first node is by the division of UL/DL MAP message or be divided into two parts that destination is respectively the 3rd node and relaying Section Point, and separately each several part is sent to relaying Section Point (such as RS 104) and one or more the 3rd nodes (such as MS 106).
Particularly, BS 102 and RS 104 are sent to its MS106 in the beginning of downlink subframe using the BS → MS_MAP as UL/DL-MAP 402 and RS → MS_MAP 404.According to the one side of execution mode, the UL/DL MAP message from BS 102 is split into two message, BS → MS bS_ MAP 402 and BS → RS_MAP 406.BS → MS bS _ MAP 402 carry channel strip assignment information (with RS can be for to MS rSthe relevant information of Radio Resource part transmitting) and BS 102 be its MS (MS bS) the 106 relevant information of the transmission with between BS and MS of preparing, and sent in the beginning of downlink subframe 204 by BS 102.RS → MS rS_mAP 406 carries from RS to its relevant MS (MS rS) assignment messages of 106 channel strip.Channel allocation refers to the Radio Resource part to using between node, such as the distribution of being with a part (part for individual channel) for interior Radio Resource to carry out.Individual channel can refer to comprise any radio resource that the one or more wave bands of limited radio resource for node are provided, and can be divided or share according to execution mode.
Because RS 104 must with BS 102 communicate by letter with and MS rSbetween 106 communication, its radio is carried out multiplexingly, so RS 104 only can be in the first of downlink subframe 204 and uplink sub-frames 205 and its MS rS106 communicate.According to the one side of execution mode, BS → RS_MAP 406 is that RS is prepared by BS 102, destination is those MS 106 that are directly connected to RS104, and can carry in addition for the down link of MS 106 of RS 104 and RS 104 and/or the channel allocation information of the combination in any of uplink communication link.According to the one side of execution mode, BS → RS_MAP 406 is prepared by BS, and carry the channel allocation information for all RSs 104 relevant with the transmission between RS of the BS with up link and down link, and can in the ending of downlink subframe 204, be sent by BS 102, and broadcast or be multicasted to all RS 104.If ending place in each downlink subframe sends BS → RS_MAP, RS 104 can be by BS 102 by Transmit enable Parameter Programming or control, to expect BS → RS_MAP 406 at the postamble place as broadcast, therefore by transmit BS → RS mapping 406 at postamble place, before arriving postamble (according to time measurement), RS 104 may needn't optionally be switched to receiving mode.In other words, at postamble place, transmit the switching time that BS → RS_MAP406 has reduced RS 104 transceivers.Even so, execution mode is not restricted to this configuration, if such as not needing to be broadcast to switching time of all RS 104 or transceiver when unimportant.In this BS → RS MAP 406, BS 102 is that up link and downlink channel allocation have been specified in the transmission between BS 102 and RS 104.BS → RS_MAP 406 has also specified which part (representing with time slot or symbol) that RS 104 can use resource in upcoming frame to transmit and from they MS 106 receptions separately to their MS 106 separately.In current BS → RS_MAP 406, also specified the burst attribute of next BS → RS MAP message.
According to the one side of execution mode, for each RS 104, BS 102 can dispatch the protection interval of symbol 408 during downlink subframe 204, to allow RS 104 be switched to receiving mode from transfer mode.As long as RS changes to receiving mode in time according to BS → RS_MAP, receive just passablely from its BS, when needn't limit RS 104 must be from transfer mode (to its MS rStransmission) be switched to receiving mode (receiving from BS).The switching time of each RS can be different.BS 102 dynamically determines BS → RS and RS → MS in this way rStransmission can be used the degree of downlink subframe.And, RS 104 at beginning of uplink sub-frames everywhere in receiving mode, so that from its MS rSreceive, be then switched to transfer mode, to transmit to BS 102 in the second portion of uplink sub-frames.Also be by BS appointment in previous BS → RS MAP406 this switching time, and based on RS → BS and MS rSthe bandwidth requirement of → RS link can change between frame.In this way, the single allocation of radio resources in can the RS Microcell 108 of JiangMMR community 100 becomes very flexible, and it is dynamic to adapt to very well network.
In Fig. 4, because the clock at RS 104 places may be with respect to the clock drift (namely BS may not synchronizeed with RS) of BS 102, so RS 104 can periodically be synchronizeed with BS 102 again.BS 102 can be for example every M frame downlink subframe ending place using additional character 408 as relaying more synchronous leading code 408 to RS 104, transmit once.Relaying more synchronous leading code 408 is undertaken by lead code 202 to RS, carrying out synchronous after initialization synchronously at operation 304 places again.If this special relaying again synchronizing symbol is not positioned at beginning of frame, but respectively near the centre of frame or be positioned at postamble, can this special relaying again synchronizing symbol be called intermediate code or leading code afterwards.The relaying again exact position of synchronous code-guiding sequence can be specified by previous BS → RS_MAP message.A relaying again exemplary position (but being not limited to) of synchronous code-guiding sequence is last symbol of down link (according to circumstances also can be up link) subframe 204, because now all RS are in receiving mode.This allows leading code to combine (such as being included, adjacent etc.) as a part for BS → RS_MAP message, thus make BS → RS MAP 406 and relaying more synchronous leading code in identical or a receiving mode session, by RS, received.Can in BS → RS MAP message, retain particular bit position, to indicate next BS → RS_MAP message whether in the end to comprise the middle synchronous leading code of relaying in a symbol.According to execution mode aspect, relaying more synchronous leading code may only be identified by RS 104, but invisible or transparent for MS 106, because MS 106 will not need this relaying synchronous leading code again, and may be because waste processing time and poor efficiency to its locking.
In Fig. 4, BS 102 and RS 104 transmit lead code 202 simultaneously, and BS 102 transmits relaying synchronous rear code-guiding sequence 408 (after being called in Fig. 4, leading code 408) more once in a while, to carry out the synchronous of RS104.The position of rear leading code 408 (not needing in each frame) and BS → RS_MAP message 406 can be pointed out by BS 102, and can be adjusted the relaying ratio of synchronous code-guiding sequence (being limited by certain minimum rate requires) again in previous BS → RS MAP message 406 (or other RS configuration messages).In other words, when opening RS 104, RS 104 is first as MS 106 and BS 102 exchange messages.Then RS 104 starts its oneself frame by transmitting alignedly lead code 202 and DL/UL MAP with BS 102.RS frame 206 aligns with BS frame 204.In an illustrative embodiments, BS 102 is divided into two parts by its UL/DL MAP: the BS → MS MAP 402 sending at the beginning place of descending chain circuit frame and the BS → RS MAP 406 sending in ending place of descending chain circuit frame, yet execution mode is not restricted to this configuration, and also can cut apart UL/DL MAP.In addition, BS 102 after BS → RS MAP 406 or in small time slot once in a while the ending of down link BS frame 204 (near ending place) send new relaying synchronous again after code-guiding sequence 408 so that it is synchronous to carry out RS.
In the illustrative embodiments based on MMR 100, in order to support the frame structure in execution mode, can define following new information:
1. the default CID (connection ID) that in couple MMR 100, all RS are known.For message is broadcast to all RS (such as BS → RS configuration messages) from BS.
2.BS → RS_MAP 406 comprises the more of in any combination of following part or combination in any:
A.BS → RS broadcast message
If i. relaying more synchronous code-guiding sequence 408 exist and be not a part for BS → RS_MAP message 406, in next frame, specify the relaying position of synchronous code-guiding sequence 408 again.If leading code 408 is parts of (comprise/be included in) BS → RS MAP, or after being just in time positioned at BS → RS MAP, if or leading code 408 last symbol of frame always, may not need in Frame, specify its position.If possible there are a plurality of leading codes 408, specify the index of the leading code of RS use.
Ii. the burst attribute of next BS → RS_MAP (burst profile), comprise the subcarrier (subchannel) of use, the symbol using, encoding scheme and the duplication code of use, and whether leading code 408 is included in last symbol of BS → RS MAP 406.
b.BS→RS i?DL_MAP
I. in next downlink subframe 204, be can Applied Physics layer system such as OFDMA specifies from BS to RS itransmission.Transmit the subcarrier (subchannel) that standard can comprise that channel partly distributes, uses, the symbol using, encoding scheme, for the delivering power that transmits and duplication code and the information relevant with the grouping of transmission in transmitting burst one or (combination in any) more.
c.RS i→BSUL_MAP
I. in upcoming uplink sub-frames according to the temporal correlation of network definition be can Applied Physics layer system such as OFDMA appointment is from RS itransmission to BS.Transmitting standard can comprise and BS → RS ithe similar information of transmission standard in DL_MAP.
d.RS i→MSDL_MAP
I. be each RS ispecify RS ican be used for to MS rSitransmit for downlink radio resource (section, sub-carriers/subchannels, symbol and maximum transmission power) that can Applied Physics layer system (such as OFDMA).May not specify RS i→ MS rSithe detailed burst attribute transmitting.In other words, BS → RS_MAP 406 can comprise (comprising) by RS 104 channel allocation to the MS106 associated with RS 104.RS idispatching it to MS rSidown link transmit and produce its RS → MS rSithe information providing in this DL_MAP is provided in the time of DL_MAP.
e.MS→RSiUL_MAP
I, for each RS i, be RS ican be used for from MS rSiwhat be sent to RSi can Applied Physics layer system, such as OFDMA specific uplink Radio Resource (sub-carriers/subchannels, symbol).May not specify MS rSithe detailed burst attribute that → RS transmits.RS idispatching from MS rSiup link transmit and produce its RS → MS rSithe information providing in this UL MAP is provided in the time of UL_MAP.
At RS i→ MS DL_MAP and MS → RS ithe channel strip that carries out in UL_MAP distributes k frame from now on and l frame (for UL and DL, k and l can be different, and by BS appointment in BS → MS_MAP) effectively, until changed by the next BS → RS_MAP that carries this information.Fig. 5 is according to the view of the data flow of the up link in a kind of control message temporal correlation of execution mode and use LiaoMMR community and the example T DD frame structure in downlink communication.In Fig. 5, the data flow arrow extending from colored indicator collet has the colour indication identical with colored indicator collet.In Fig. 5, supposed UL-MAP and the up link that the is scheduled minimum time between transmitting.
According to the one side of execution mode, the in the situation that of exemplary frame structure, can carry out two layers of RRM, wherein 102 couples of BS distribute to each RS 104 for it and by the direct service of RS 104 or the MS 106 (MS under RS controls rS) between the radio resource that transmits of the UL/DL that carries out partly distribute, and the MS that directly serves of RS 104 and RS 104 rSdetailed transmission plan (set of MS access link 112) between 106 is managed by RS → MS MAP 404 by RS 104.This has reduced communication overhead between RS and BS and BS and has produced the calculated load of detailed transmission plan for each RS, increased the capacity of each RS Microcell 108 simultaneously, this is because each MS is more at the channel quality information of the renewal at RS place, and RS promptly responds the channel information of these variations to MS.
Fig. 6 be according to a kind of execution mode at the functional-block diagram that uses the equipment of wireless communication frame structure between the node of individual channel.In Fig. 6, equipment 600 can for such as (but being not limited to), as BS 102 and/or RS 104, bring into play function and operation and use any calculation element that carries out radio communication according to other devices of the frame structure of execution mode.Equipment 600 can comprise for showing user interface or for being connected to the display 602 of the interface of exterior display device.Controller 604 (such as CPU) is carried out instruction (such as computer program or software), and this instruction control appliance is carried out baseband operations.Typically, the instruction that the interior storage of memory 606 is carried out by controller 604.According to the one side of execution mode, this equipment and any computer-readable medium 610, communicate such as (but being not limited to) physical computer readable medium recording program performing (such as hard disk, memory) or with the wired/wireless communication network unit of software realization and/or the computing hardware communicating by wire/wireless carrier signal.According to the one side of execution mode, equipment 600 and Target Wireless communication network are such as radio communication is carried out in (but being not limited to) MMR community 100.Display 602, CPU 604, memory 604 and computer-readable medium 610 are communicated by letter mutually by data/address bus 608.
Fig. 7 is according to the function diagram of the processing layer in the device of Fig. 6 of execution mode (software and/or computing hardware).In Fig. 7, processing layer comprises network layer 702, media interviews controls (MAC) layer 704 and physical layer 706.The processing layer of Fig. 7 is logical layer, and execution mode is not limited to the processing layer of these examples, and other processing layer structures also can be provided.According to execution mode aspect, network layer 702 is the software of being carried out by controller 704.MAC 704 and physical layer 706 are software and/or the computing hardware that are included in wireless communication network unit 610 as computer-readable medium.MAC layer 704 and physical layer 706 realize all types of target wireless network access criteria, as (being not limited to) TDD, FDD and/or CDMA.The example of target radio network can ShiMMR community 100.Execution mode can be that any known computer-readable medium 610 is stored or be encoded in to software (, as, computer readable recording medium storing program for performing, is not limited to, CD, digital versatile disc (DVD), memory or carrier communication medium or electromagnetic signal etc.) and/or any computing hardware.In one embodiment, wireless communication frame is in the MAC layer 704 of target radio network node (such as in base station (BS) 102 and/or in relaying Section Point (RS) 104) and/or the standard of physical layer 706, to construct and transmit.Conventionally (but being not limited to), network layer 702 provides the wired and/or radio communication access to the private/public networks outside target radio network (as, the Internet).Network layer 403 can be used as management function, as dynamically (in real time) (as, according to Internet resources situation) provide (download) by carrying out with relaying Section Point to the three nodes configuration/control parameter that the first node of radio communication is set up.
The beneficial effect of execution mode has been to provide first node and relaying Section Point to the at utmost flexibility of one or more the 3rd nodes sharing individual channel resources (bandwidth), in situation such as MMR community 100, BS 102 and RS 104 are used the flexibility of individual channel Radio Resource in RS Microcell 108.Compare with the scheme in Fig. 2, new execution mode frame structure is very flexible, because such as the flow that BS can produce according to different piece (such as the different RS Microcell 108 in MMR network 100), any share of bandwidth is distributed to and is transmitted BS → RS, RS → MS, RS → BS, MS → RS.Thereby make MMR network 100 adapt to different user distribution and user traffic patterns.The execution mode of describing provides the relaying Section Point with single radio interface, such as for reducing cost, this execution mode also regulation relaying Section Point is used the 3rd node of identical channel and first node and the service of relaying Section Point to communicate, yet execution mode is not restricted to this configuration, and execution mode can be provided in such wireless communication cell, in this wireless communication cell, one or more in relaying Section Point communicate with individual channel, and other relaying Section Points can communicate with a plurality of channels.According to the one side of execution mode, in this mixed type individual channel or multichannel relaying Section Point community, one or more in individual channel relaying Section Point can be the target of RRM.
According to detailed specification, many feature and advantage of execution mode will become apparent, and therefore, be intended to contain by claims all this feature and advantage of the execution mode falling in its true spirit and scope.In addition, because to those of ordinary skill in the art, be easy to carry out many modifications and change, therefore, do not expect working of an invention mode to be restricted to accurate structure and the operation of institute's example and description, and can cover all suitable modification and the equivalent falling within the scope of it.

Claims (21)

1. a method for align data frame in node, the method comprises:
Send the lead code of first node and the lead code of relaying Section Point simultaneously and with align described first node and described relaying Section Point, arrive the Frame of one or more the 3rd nodes, described first node and described relaying Section Point all carry out radio communication with individual channel to described one or more the 3rd nodes;
Specific radio electric resources is controlled parameter, described radio resource control parameter at the first node of alignment and described relaying Section Point to the radio resource of managing the described radio communication in described individual channel between described one or more the 3rd nodes; With
Periodically by relaying more synchronous code-guiding sequence be sent to described relaying Section Point, described relaying more synchronous code-guiding sequence is managed the Frame of described first node and the alignment of the Frame of described relaying Section Point in described individual channel.
2. method according to claim 1, wherein said radio resource is controlled parameter and is comprised for the described relaying of described relaying Section Point existence and/or the position of synchronous code-guiding sequence in next wireless communication link Frame again, a plurality of described relaying Section Points are the index of synchronous code-guiding sequence again, next radio resource is controlled the burst attribute of parameter, the down link carrying out to described relaying Section Point in next Frame transmits, the up link of carrying out to described first node from described relaying Section Point in next Frame transmits, described relaying Section Point in described individual channel is to down link and/or the uplink radio resources of described one or more the 3rd nodes, or its any combination.
3. method according to claim 1, wherein said radio resource is controlled parameter and has been specified down link and/or the uplink channel to described one or more individual the 3rd nodes at relaying Section Point described in described individual channel partly to distribute, and
Described method further comprises the signal plans of according to described channel strip allocation manager, described one or more individual the 3rd nodes being carried out by described relaying Section Point.
4. method according to claim 1, it is that ending place at wireless communication link frame transmits that wherein said radio resource is controlled parameter.
5. method according to claim 3, wherein for described relaying synchronous code-guiding sequence transmission after described radio resource is controlled parameter again of described relaying Section Point.
6. method according to claim 1, wherein said radio resource is controlled parameter and is comprised for the described relaying of described relaying Section Point synchronous code-guiding sequence again.
7. method according to claim 1, wherein said first node has dynamically specified described radio resource to control parameter.
8. method according to claim 1, wherein said radio resource control parameter based on described first node and described relaying Section Point to the up link between described one or more the 3rd nodes and/or the Radio Resource requirement on downlink communication chain road, in described individual channel for described relaying Section Point has been specified transceiver mode switching time.
9. method according to claim 1,
Wherein said radio resource is controlled parameter and has been specified in described individual channel, and described first node and described relaying Section Point partly distribute to down link and/or the uplink channel between described one or more the 3rd nodes, and
Described method further comprises:
By described first node and/or described relaying Section Point, according to described channel strip, distributed, management is to the signal plan of the described relaying Section Point in the channel of appointment and/or described one or more the 3rd nodes;
By described first node, described relaying Section Point or its any combination, specify described radio resource to control parameter.
10. method according to claim 9, wherein said radio resource is controlled parameter and is comprised for the described relaying of described relaying Section Point existence and/or the position of synchronous code-guiding sequence in next wireless communication link Frame again, described a plurality of index of synchronous code-guiding sequence again for described relaying Section Point, next Radio Resource is controlled the burst attribute of parameter, the down link carrying out to described relaying Section Point in next Frame transmits, the up link of carrying out to described first node from described relaying Section Point in next Frame transmits, described relaying Section Point is to down link and/or uplink radio resources in the described individual channel of described one or more the 3rd nodes, the transceiver mode switching time of the described described individual channel for relaying Section Point, or its any combination.
11. methods according to claim 1, wherein said first node, described relaying Section Point and described one or more the 3rd node are according to having used in described individual channel one group or OFDM (OFDMA) system of more groups of subcarriers to carry out radio communication.
12. 1 kinds are carried out the equipment of radio communication as node and via node to one or more other nodes with individual channel, this equipment comprises:
Computing hardware and/or carry out to realize the software with lower module by described computing hardware:
Control send simultaneously the lead code of first node and the lead code of relaying Section Point using alignment as the described node of first node and relaying Section Point the module to the Frame of one or more the 3rd nodes, described first node and described relaying Section Point carry out radio communication to described one or more individual the 3rd nodes with individual channel;
By described first node, send the module that one or more radio resource is controlled parameter, described radio resource control parameter at the first node of alignment and described relaying Section Point to the radio resource of managing the described radio communication in described individual channel between described one or more the 3rd nodes; With
Periodically by relaying more synchronous code-guiding sequence be sent to the module of described relaying Section Point, described relaying more synchronous code-guiding sequence is managed synchronous in described individual channel of the Frame of described first node and the Frame of described relaying Section Point.
13. equipment according to claim 12, wherein said radio resource is controlled parameter and is comprised for the described relaying of described relaying Section Point existence and/or the position of synchronous code-guiding sequence in next wireless communication link Frame again, for a plurality of described relaying of the described relaying Section Point index of synchronous code-guiding sequence again, next radio resource is controlled the burst attribute of parameter, the down link carrying out to described relaying Section Point in next Frame transmits, the up link of carrying out to described first node from described relaying Section Point in next Frame transmits, described relaying Section Point in described individual channel is to down link and/or the uplink radio resources of described one or more the 3rd nodes, or its any combination.
14. equipment according to claim 13, wherein said radio resource is controlled parameter and has been specified down link and/or the uplink channel to described one or more the 3rd nodes at relaying Section Point described in described individual channel partly to distribute.
15. equipment according to claim 13, it is to transmit in ending place near wireless communication link Frame that wherein said radio resource is controlled parameter.
16. equipment according to claim 14, wherein for the synchronous code-guiding sequence transmission after described radio resource is controlled parameter again of the described relaying of described relaying Section Point.
17. equipment according to claim 13, wherein said radio resource is controlled parameter and is comprised for the described relaying of relaying Section Point synchronous code-guiding sequence again.
18. equipment according to claim 13, wherein said radio resource is controlled parameter and is dynamically specified and send.
19. equipment according to claim 13, wherein said module is configured to carry out the operation as the described node of base station, to carry out radio communication with described relaying Section Point to described one or more the 3rd nodes in the community based on mobile multi-hop relaying at WiMAX, and described the 3rd node is user's mobile radio station.
20. equipment according to claim 13, wherein said module is configured to carry out the operation as the described node of base station, this operates in the community of WiMAX based on mobile multi-hop relaying and directly carries out radio communication with described one or more the 3rd nodes, and described one or more the 3rd nodes are user's mobile radio station.
21. equipment according to claim 19, wherein said module is configured to use a group in described individual channel or organizes subcarrier more, according to orthogonal frequency-division access (OFDMA) system, carries out wireless communication operation.
CN200780030595.3A 2006-08-18 2007-07-31 Wireless data frame structure between nodes Expired - Fee Related CN101507144B (en)

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