CN101340267A - Transmission control methods and devices for communication systems - Google Patents

Transmission control methods and devices for communication systems Download PDF

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Publication number
CN101340267A
CN101340267A CNA2008101295902A CN200810129590A CN101340267A CN 101340267 A CN101340267 A CN 101340267A CN A2008101295902 A CNA2008101295902 A CN A2008101295902A CN 200810129590 A CN200810129590 A CN 200810129590A CN 101340267 A CN101340267 A CN 101340267A
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data
index signal
state
transmission
communication apparatus
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CN101340267B (en
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林咨铭
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Industrial Technology Research Institute ITRI
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Industrial Technology Research Institute ITRI
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Abstract

Disclosed is a system and method for transmission control in a wireless communication system, including receiving data for transmission to a receiving device, and forwarding the data to a subordinate device. The method also includes initiating a timer, and generating a supplemental receipt indicator. If the intermediate device receives at least one of a receipt indicator and one or more subordinate supplemental receipt indicators before expiration of the timer, the intermediate device includes the generated supplemental receipt indicator with the receipt indicator or one or more subordinate supplemental receipt indicators, and sends the indicators to a next superordinate device. If the intermediate device does not receive at least one of a receipt indicator or one or more subordinate supplemental receipt indicators before the expiration of the timer, the intermediate device sends the generated supplemental receipt indicator to the next superordinate device.

Description

The transfer control method of communication system and device
Technical field
The invention relates to the method and apparatus of communication system, and particularly relevant for the method and apparatus of controlling in the transmission of data communication system.
Background technology
Wireless telecommunication system allows wireless device to carry out communication under the situation that does not need wired connection.Because wireless system is integrated in the daily life, so need to support the wireless telecommunication system of multimedia service day by day, these multimedia services are such as being speech, audio frequency, video, archives and page download or the like.In order to support the multimedia service of wireless device, developed various wireless telecommunication system and agreement, with the growth demand of the multimedia service of complying with the wireless telecommunications networking.
One of this kind agreement is wide band code division multitask (W-CDMA), and it is cooperated to plan (3GPPTM) by third generation Mobile Communications partner and is delivered, by the joint research of institute of how tame standard development mechanism.W-CDMA opens up the broadcast interface of frequently taking action for a kind of broadband, and it uses direct sequence demal multitask (CDMA).
The communication of this wireless system can comprise single node (single-hop) transmission and multinode (multi-hop) transmission.In the single node wireless transmission, start node directly and destination node carry out communication.In comparison, in the multinode wireless transmission, the start node of wireless system can use one or more intermediate nodes (being sometimes referred to as via node) and carry out communication with destination node.In some system, via node can be described as relay station (relay station), and can be called transmission path with node between destination node with the combination that is connected at start node.The midsequent system can be present in the wireless network of any pattern.
Fig. 1 is the schematic diagram with known wireless network 100 of multinode transmission and single node transmission.Wireless network 100 shown in Figure 1 is based on the standard of Institute of Electrical and Electronics Engineers (IEEE) 802.16 families.As shown in Figure 1, wireless network 100 can comprise one or more transmitters (for example base station (BS) 110), one or more relay stations (RS) 120 (comprising RS 120a, 120b and 120c), and one or more subscriber station (SS) 130 (comprising SS 130a, 130b, 130c and 130d).
In wireless network 100, start node (for example BS 110) and destination node are (for example, SS130a, SS 130b, SS 130c, SS 130d etc.) between communication, can reach by one or more relay stations (for example, RS 120a, RS 120b, RS 120c etc.).For example, in wireless network 100, RS 120a can receive the data from BS 110, and these data are sent to another relay station (for example, RS 120b).Perhaps, RS 120a can receive from another relay station () data for example, RS 120b, and be sent to BS 110.In another example, RS 120c can receive the data from RS 120b, and these data are sent to subscriber station (for example SS 130a).Perhaps, RS 120c can receive the data from subscriber station (for example SS 130a), and is sent to domination relay station (for example RS 120b).These are examples of multinode transmission.In the single node transmission of wireless network 100, can directly reach the communication between start node (for example BS 110) and destination node (for example SS 130d).For example, BS 110 can directly transmit data to SS 130d, and SS 130d can directly transmit data to BS 110.
The wireless system 100 of Fig. 1 can be realized medium access control (MAC) frame (frame) form, and it uses IEEE 802.16 standards of orthogonal frequency division multiple access (0FDMA).In wireless system 100, the transmission time may be partitioned into a plurality of adjustable length subframes: cochain (UL) subframe and following chain (DL) subframe.Generally speaking, this UL subframe can comprise a plurality of range finding passages (ranging channels), passage quality information passage (CQICH) and a plurality of UL data pulse strings (data burst) that comprise data.
The DL subframe can comprise: preorder (preamble), frame control header (FCH), DL figure (DL-MAP), UL scheme (UL-MAP) and DL data pulse string zone.Preorder can be in order to provide synchronous.For example, this preorder can be in order to adjust timing off-set, frequency shift (FS) and power.FCH can comprise each frame control information that connects, and comprises the frame control information such as SS 130.
DL figure and UL figure can be in order to the passage access of location cochain with following chain communication.That is, the catalogue of access time slot (access slot) position under this DL figure can be provided at present in the chain subframe, and UL figure can be provided at the catalogue of the access time slot position in the present cochain subframe.In this DL figure, this kind catalogue can be one or more DL figure message elements (MAP Information Element, forms MAPIE).Each MAPIE in this DL figure can comprise several parameters of single connection (that is, with being connected of single SS 130).These parameters can be in order to confirm in present subframe the position of data pulse string, the length of data pulse string, recipient's identity of data pulse string, and transmission parameter.
For example, each MAP IE can comprise: and connection ID (Connection ID, CID), the identity of the destination apparatus of its data discrimination pulse train (for example, SS 130a, SS 130b, SS 130c, SS 130d etc.); Following chain use at interval sign indicating number (Downlink Interval Usage Code, DIUC), sign indicating number is used in its expression down chain at interval, following chain transmission is defined by it; The OFDMA symbol offset, the skew of the OFDMA symbol of its expression data pulse start of string; The subchannel skew, it is represented in order to transmit the minimum pointer OFDMA subchannel of this pulse train.Other parameter also can be included among this MAP IE, and for example, (boosting) parameter that raises, OFDMA symbolic representation parameter, subchannel are represented parameter etc.Known MAC header (for example FCH) can be called with MAP IE and be connected the conversion and control data.
DL figure all can follow this to be connected the conversion and control data with UL figure.Connect the conversion and control data and can comprise one or more data pulse strings.Each data pulse string that connects in the conversion and control data can be according to the control pattern of corresponding connection conversion and control data by modulation and coding.Generally speaking, DL figure and UL figure can be called the packet data unit (packet data unit, PDU) or abbreviate packet data as.
The used transmission controlling mechanism of the wireless network 100 of Fig. 1 such as be automatic repeat request (Automatic Repeat Request, ARQ).By using ARQ, the device of wireless system (for example, BS 110, RS120a, 120b and 120c, and SS 130a, 130b, 130c and 130d etc.) can be designed to, when packet data is not received or receives when wrong by the purpose recipient, it can transmit packet data again.ARQ transmission controlling mechanism can use the combination of ACK, NACK and overtime (timeout) with the Data transmission transmission state.The ARQ agreement can comprise: stop and wait (Stop-And-Wait (SAW)), get back to N (Go-Back-N) and selectivity and repeat.
In the wireless system that uses ARQ transmission controlling mechanism, when receiving system received (new or transmission) again packet data, receiving system can produce and transmit ACK or NACK conveyer so far.ACK confirms index signal, and it can be included in the information or be additional to information, and can be sent to transmitter by receiver, has correctly received this transmission data with the expression receiver.NACK is the negative acknowledgment index signal, and it is included in the information or is additional to information, and can be sent to transmitter by receiver, and the transmission data that received with indication have one or more mistakes.
Fig. 2 is sender Figure 200 of the operation of (end-to-end) ARQ transmission controlling mechanism between end points.As shown in Figure 2, in the distribute type resource configuration system, in the transmission path each node can Resources allocation next node to the relay route.For example, in the distribute type resource configuration system, BS 110 can be RS 120a deploy resources, and it is denoted as the arrow between BS 110 and RS 120a.Similarly, RS 120a can be RS 120b deploy resources, and it is denoted as the arrow between RS 120a and RS 120b.In the centralized resources configuration-system, BS 110 can control information transmission all nodes to the transmission path, RS 120a for example, RS 120b, RS 120c and SS 130a are to finish resource distribution.In either case, after resource distribution was finished, BS 110 can be via intermediate node RS 120a, and RS 120b and RS 120c and Data transmission are to destination node (SS 130a).In addition, BS 110 can store the copy of the data of sending in buffer.In the example of Fig. 2, these data can comprise eight (8) individual packet datas.
RS 120a can successfully receive this 8 packet datas, and the copy of storage data is to its buffer, and transmits these data to RS 120b.Yet, between RS 120a and RS 120b, may be owing to damage, interference, mistake etc. are lost 2 packet datas, so RS 120b may receive only 6 packet datas.RS 120b can transmit these 6 packet datas to RS 120c, and store transmit the copy of data to its buffer.Similarly, RS 120c can receive this 6 packet datas, transmits these 6 packet datas to SS 130a, and store transmit the copy of data to its buffer.Yet between RS 120c and SS 130a, 3 packet datas may be lost in addition, cause having only 3 packet datas successfully to be received by SS 130a.When receiving these 3 packet datas, SS 130a can transmit the ACK index signal to BS 110 along the upper link transmission path via RS 120c, RS 120b and RS 120c.The ACK index signal can inform that success receives this 3 packet datas.When BS 110 received this ACK index signal, BS 110 can remove these 3 packet datas that identified in buffer.
In case BS 110 has removed buffer, then BS 110 can prepare 3 new packet datas to transfer to SS 130a.In some cases, BS 110 can carry out communication with RS 120a, 120b and 120c, determining the how transmission again of locator data, so that can make each RS 120 can receive the correct data of its most direct node in upper link direction (that is, upper node).When BS 110 has determined how to locate when transmitting again, BS 110 can then utilize the centralization resource distribution, redeploys these resources along transmission path.Perhaps, carry out the distribute type resource distribution, each node can redeploy resource to next node along transmission path (cochain or following chain) in transmission path.In either case, in case these resources are redeployed, BS 110 can transmit these 3 new packet datas to SS 130a via RS 120a.Then, RS 120a can add data so far with 2 packet datas being lost between RS 120a and RS 120b, to transfer to RS 120b (that is, Data (2+3 ')) again.RS 120b can receive Data (2+3 '), transmission Data (2+3 ') to RS 120c, and stores new Data (that is, Data (3 ')) to its buffer.Similarly, RS 120c can receive Data (2+3 ') and these 3 packet datas that will be lost between RS 120c and SS 130a are added into Data (2+3 '), with generation Data (5+3 ').RS 120c can transmit Data (5+3 ') to SS130a, and the copy of stores new (that is, Data (3 ')) to its buffer.SS 130a can receive new data and data retransmission (that is, Data (5+3 ')), and via RS 120a, RS 120b and RS 120c and the transferring ACK index signal to BS 110.The ACK index signal that is transferred out is to inform to receive 8 packet datas (that is, ACK (5+3 ')), and wherein 3 packages are new data, the attach most importance to data of new transmission of 5 packages.Receiving that in the ACK index signal, BS 110 can remove its buffer.
Fig. 3 A is sender Figure 30 0a of the operation of ARQ transmission controlling mechanism, and it may be implemented in the employing two-part or pursues in the system of node type ARQ.In the system that uses two-part ARQ transmission controlling mechanism, access node (intermediate node RS 120a for example, RS 120b and RS 120c) return the ACK index signal to transmission node (for example BS 110), whether successfully received to represent present transmission state and this transmission by access node.Access node is the intermediate node (for example, RS 120a, RS 120b, RS 120c etc.) of directly communication to destination node (for example, SS 130a, SS130b, SS 130c, SS 130d etc.).For example, the access node corresponding to SS 130a can be RS 120c.
Be similar to Fig. 2, Fig. 3 A demonstrates, BS 110 can control information transmission to all nodes of transmission path, in the centralized resources configuration-system, to carry out resource distribution.For example, about the transmission path from BS 110 to SS 130a, BS 110 can carry out resource distribution for RS 120a, RS 120b, RS 120c and SS 130a.Under another situation, in the distribute type resource configuration system, each node in this transmission path can be along transmission path (cochain or following chain) deploy resources to next node.For example, about transmission path from BS 110 to SS 130a, BS 110 can carry out from the resource distribution of BS 110 to RS 120a, RS 120a can carry out the resource distribution from RS 120a to RS 120b, RS 120b can carry out the resource distribution from RS 120b to RS 120c, and RS 120c can carry out the resource distribution from RS 120c to SS 130a.In either case, in case resource distribution is finished, BS 110 can be via intermediate node RS 120a, and RS 120b and RS 120c and Data transmission are to destination node (SS 130a).In addition, BS 110 can store the copy of the data of sending to buffer.In the example of Fig. 3 A, these data can comprise eight (8) individual packet datas.
RS 120a can successfully receive this 8 packet datas, and the copy that stores received data is to its buffer, and the transmission data are to RS 120b.Yet, between RS 120a and RS 120b, may lose 2 packet datas owing to damage, interference mistake etc., so RS 120b may only receive 6 packet datas.RS 120b can transmit these 6 packet datas to RS 120c, and store transmit the copy of data to its buffer.In addition, RS 120b can transmit the ACK index signal to BS 110 to acknowledge receipt of this 6 packet datas.
RS 120c can receive this 6 packet datas, and the reception data of transmitting these 6 packages are to SS130a, and store transmit the copy of data to its buffer.RS 120c can transmit in advance ACK (pre-ACK) index signal to BS 110, to acknowledge receipt of this 6 packet datas.Yet in the transmission between RS 120c and SS 130a, 3 packet datas may be lost in addition, cause having only 3 packet datas successfully to be received by SS 130a.Receiving that in these 3 packet datas, SS 130a can be via RS 120c, RS 120b and RS 120c transmit the ACK index signal to BS 110 along the upper link transmission path.The ACK index signal can successfully be received this 3 packet datas in order to inform.When BS 110 received the ACK index signal, BS 110 can remove 3 packet datas that identified from its buffer.
In case BS 110 has removed its buffer, BS 110 can prepare 3 new packet datas to transfer to SS 130a.In some situation, BS 110 can with RS 120a, 120b and 120c carry out communication, the location of transmitting again with determination data is in order to do making each RS 120 can receive it in the correct data along the most direct node of upper link direction (that is, upper node).When BS 110 has determined how to locate when transmitting again, in the centralized resources configuration-system, BS 110 can then redeploy these resources along transmission path.Perhaps, in the distribute type resource configuration system, each node in transmission path can redeploy resource to next node along transmission path (cochain or following chain).In either case, in case resource is redeployed, BS 110 can transmit these 3 new packet datas to SS 130a via RS 120a.Then, RS 120a can be added into these 2 packet datas of being lost new data to transfer to RS 120b (that is, Data (2+3 ')) again between RS 120a and RS 120b.RS 120b can receive Data (2+3 '), and transmission Data (2+3 ') is to RS120c, and stores new Data (that is, Data (3 ')) in its buffer.Similarly, RS 120c can receive Data (2+3 '), and these 3 packet datas that will be lost between RS 120c and SS 130a are added into Data (2+3 ') and use and produce Data (5+3 ').RS 120c can transmit Data (5+3) to SS 130a, and the copy of stores new (that is, Data (3 ')) is to its buffer.SS 130a can receive the data (that is, Data (5+3 ')) of new data and transmission again, and via RS 120a, 120b and 120c and the transferring ACK index signal to BS 110.The ACK index signal that is spread out of informs and receives 8 packet datas (that is, ACK (5+3 ')), and wherein 3 packages are new data, and the attach most importance to data of new transmission of 5 packages.Receiving that in the ACK index signal, BS 110 can remove the buffer that has new data and legacy data.
Fig. 3 B shows sender Figure 30 0b of the operation of ARQ transmission controlling mechanism, and its use is similar to the ACK in advance (pre-ACK) of 3A figure or pursues node (pre-hop) ACK communication.Be similar to Fig. 3 A, Fig. 3 B demonstrates, BS 110 can control information transmission all nodes to the transmission path, RS120a for example, RS 120b, RS 120c and SS 130a are in order to finish resource distribution in pooling of resources formula configuration-system.In this situation, in the distribute type resource configuration system, each node in this transmission path can be along this transmission path (cochain or following chain) deploy resources to next node.In either case, in case resource distribution is done, BS 110 can be via intermediate node RS 120a, and RS 120b and RS 120c come Data transmission to destination node (SS 130a).In addition, BS 110 can store the copy of the data of sending to its buffer.In the example of Fig. 3 B figure, these data can comprise eight (8) individual packet datas.
RS 120a can successfully receive this 8 packet datas, and the copy of storage data is to its buffer, and transmits these data to RS 120b.In addition, RS 120a can transmit in advance the ACK index signal to BS 110, to acknowledge receipt of this 8 packet datas.Yet between RS 120a and RS 120b, 2 packet datas may be owing to damage, interference, mistake etc. be lost, so RS 120b may have only 6 packet datas of reception.RS 120b can transmit these 6 packet datas to RS 120c, and store transmit the copy of data to its buffer.In addition, RS 120b can transmit in advance the ACK index signal to BS 110, to acknowledge receipt of 6 packet datas.
RS 120c can receive this 6 packet datas, transmits these 6 packet datas to SS 130a, and store transmit the copy of data to its buffer.RS 120c can transmit in advance the ACK index signal to BS 110, to acknowledge receipt of this 6 packet datas.Yet in the transmission between RS 120c and SS 130a, 3 packet datas may be lost in addition, cause having only 3 packet datas successfully to be received by SS130a.Receiving in these 3 packet datas that SS 130a can transmit the ACK index signal to BS 110 via RS 120c, RS 120b and RS 120c along the upper link transmission path.The ACK index signal can successfully be received this 3 packet datas in order to inform.
Yet under Fig. 3 A, Fig. 3 B illustrates that following situation: BS 110 prepares 8 new packet datas to transfer to SS 130a.Therefore, RS 120a receive 8 new packet datas and make an addition to RS 120a and RS 120b between 2 packet datas being lost.Receiving that in the data (that is, Data (2+8 ')), RS 120b may experience and be jammed and/or the buffer overflow.The Data that RS 120b can attempt passing on being received (2+8 ') is to RS 120c, and RS 120c may experience equally and is jammed and/or the buffer overflow.When RS 120c adds these 3 packet datas of before being lost (that is, Data (5+8 ')) between RS 120c and SS 130a, and transmission Data (5+8 ') may run into similar results during to SS 130a.That is SS 130a also experience is jammed and/or the buffer overflow.
Because the hop count of transmission path increases, compared to the single node wireless network, the error detection of multinode wireless network is even more important with correction.In addition, handshaking (for example between RS 120c and the RS outside the BS110 coverage 120) also may increase the error detection of wireless network and the effect of correction between unit internal signal exchange (handover) (for example between RS 120c and RS 120b) and unit.For example, see also Fig. 1, if SS 130c moves to RS 120b from RS 120c, the packet data that is not transferred to SS 130c by RS 120c as yet before handshaking may be lost, and needs the transmission again of packet data.About another example, if SS 130c moves to another RS 120 (not being shown in Fig. 1) of the coverage outside of BS110 from RS 120c, the packet data that is not transferred to SS 130c by RS 120c as yet before handshaking also may be lost, and needs the transmission again of packet data.Therefore, in the multinode transmission, traditional error detection may cause cost significantly to increase with correction, the long delay and the wasting of resources.
Disclosed enforcement demonstration example is in order to overcome the problems referred to above.
Summary of the invention
Implement in the demonstration example in one, the invention relates to a kind of method of the transmission control in a wireless telecommunication system, comprise: at least one section transfer resource configuration of the transmission path of decision between a conveyer and a receiving system, wherein this transmission path comprises one or more middle devices; By this conveyer, data are sent to this receiving system; By this conveyer, receive one or more additional reception index signals from these one or more middle devices, wherein these one or more additional reception index signals are that relevant band is sent these data to this receiving system; This transfer resource again and again of at least one section configuration of this transmission path of decision between this conveyer, these one or more middle devices and this receiving system; And, begin the transmission again of these data based at least one of this one or more additional reception index signals.
In another illustrative enforcement example, the invention relates to a kind of wireless communication apparatus of wireless telecommunications, it comprises at least one memory and at least one processor.At least one memory is in order to the storage data and instruction.At least one processor is designed in order to this memory of access, and when carrying out described instruction, in order to: at least one section transfer resource configuration of the transmission path of decision between a wireless communication apparatus and a receiving system, wherein this transmission path comprises one or more middle devices; Data are sent to this receiving system; From these one or more middle devices, receive one or more additional reception index signals by this conveyer, wherein these one or more additional reception index signals are relevant to these data of sending to this receiving system; This transfer resource again and again of at least one section configuration of this transmission path of decision between this wireless communication apparatus, these one or more middle devices and this receiving system; And, begin the transmission again of these data based at least one of this one or more additional reception index signals.
In an illustrative enforcement example, the invention relates to a kind of method of the transmission control in a wireless telecommunication system, comprise: receive the transmission data for transferring to a receiving system by a middle device; These transmission data are transferred to next the next middle device or this receiving system in the transmission path between this middle device and this receiving system; Begin a timer, wherein this timer is to set according to the round-trip transmission time between this middle device and this receiving system; And produce one and replenish to receive index signal.If before this timer expires, this middle device receives at least one of index signal and one or more the next additional reception index signals, then: comprise should replenishing of being produced and receive index signal, its have this reception index signal and these one or more the next additional reception index signals this at least one, and will receive index signal and these one or more the next additional reception index signals this at least one, and this additional index signal that receives that is produced that is comprised, be sent to the next upper middle device in this transmission path between this middle device and a conveyer or be sent to this conveyer.If before this timer expires, this middle device does not receive at least one of index signal or one or more the next additional reception index signals, then: the reception index signal of should replenishing that is produced is sent to the upper middle device of this next one or this conveyer.
In another illustrative enforcement example, the invention relates to a kind of wireless communication apparatus that supplies wireless telecommunications to use, it comprises at least one memory and at least one processor.At least one memory is in order to the storage data and instruction.At least one processor is designed in order to this memory of access, and when carrying out described instruction, in order to: receive the transmission data for transferring to a receiving system by this wireless communication apparatus; These transmission data are transferred to next the next middle device or this receiving system in the transmission path between this wireless communication apparatus and this receiving system; Begin a timer, wherein this timer is to set according to the round-trip transmission time between this wireless communication apparatus and this receiving system; Produce one and replenish the reception index signal.If before this timer expires, this wireless communication apparatus receives at least one of index signal and one or more the next additional reception index signals, then: comprise should replenishing of being produced and receive index signal, its have this reception index signal and these one or more the next additional reception index signals this at least one, and will receive index signal and these one or more the next additional reception index signals this at least one, and this additional reception index signal that is produced in being included in, be sent to the next upper middle device in this transmission path between this wireless communication apparatus and a conveyer or be sent to this conveyer.If before this timer expires, this wireless communication apparatus does not receive at least one of index signal or one or more the next additional reception index signals, then: the reception index signal of should replenishing that is produced is sent to the upper middle device of this next one or this conveyer.
In another illustrative enforcement example, the invention relates to a kind of method of operation of the wireless communication apparatus in a wireless telecommunication system, this method comprises: set a unit state for one first state, wherein this first state is to be an initial condition; Taking place this unit state to be changed over one second state from this first state in one first trigger event, wherein this second state is that to be defined as a state and a relaying timer (Relay timer) that data have been transmitted still not yet due; When this relaying timer expires, this unit state is changed over a third state and begins the transmission again of these data from this second state; When still not yet due and this wireless communication apparatus receives one of them of an intermediate node negative acknowledgment index signal, an endpoint node negative acknowledgment index signal or an overtime signal when this relaying timer, this unit state is changed over this third state from this second state; And when this wireless communication apparatus receives an endpoint node and confirms that index signal and this relaying timer are still not yet due, this unit state is changed over a four condition from this second state.
In another illustrative enforcement example, the invention relates to a kind of wireless communication apparatus of wireless telecommunications, this wireless communication apparatus comprises at least one memory and at least one processor.At least one memory is in order to the storage data and instruction.At least one processor is designed in order to access memory, and when carrying out described instruction, in order to: set a unit state for one first state, wherein this first state is to be an initial condition; Taking place this unit state to be changed over one second state from this first state in one first trigger event, wherein this second state is that to be defined as a state and a relaying timer that data have been transmitted still not yet due; When this relaying timer expires, this unit state is changed over a third state and begins the transmission again of these data from this second state; When still not yet due and this wireless communication apparatus receives one of them of an intermediate node negative acknowledgment index signal, an endpoint node negative acknowledgment index signal or an overtime signal when this relaying timer, this unit state is changed over this third state from this second state; And when this wireless communication apparatus receives an endpoint node and confirms that index signal and this relaying timer are still not yet due, this unit state is changed over a four condition from this second state.
Description of drawings
For foregoing of the present invention can be become apparent, some enforcement demonstration example cited below particularly, and conjunction with figs. are described in detail below, wherein:
Fig. 1 is the calcspar of wireless telecommunication system;
The sender figure that Fig. 2 uses for the known technology wireless telecommunication system that ACK information between a kind of use side sends;
Fig. 3 A is a kind of use sender figure of ACK or the known technology wireless telecommunication system that sends by node ACK information in advance;
Fig. 3 B is a kind of use sender figure of ACK or the known technology wireless telecommunication system that sends by node ACK information in advance;
Fig. 4 is the calcspar according to the wireless telecommunication system of an exemplifying embodiment of the present invention;
Fig. 5 A is the calcspar according to the radio network controller (RNC) of an exemplifying embodiment of the present invention;
Fig. 5 B is the calcspar according to the base station (BS) of an exemplifying embodiment of the present invention;
Fig. 5 C is the calcspar according to the relay station (RS) of an exemplifying embodiment of the present invention;
Fig. 5 D is the calcspar according to the subscriber station of the invention process demonstration example (SS);
Fig. 6 is the flow chart of handling according to of the present invention one packet data of implementing demonstration example;
Fig. 7 implements the error detection of demonstration example and the flow chart of correction according to of the present invention one;
Fig. 8 implements the error detection of demonstration example and the flow chart of correction according to of the present invention one;
Fig. 9 is the sender figure according to an enforcement demonstration example of the present invention;
Figure 10 is the sender figure according to an enforcement demonstration example of the present invention;
Figure 11 is the sender figure according to an enforcement demonstration example of the present invention;
Figure 12 is for implementing the sender figure that demonstration example has the ACK index signal of RACK index signal according to of the present invention one;
Figure 13 is the calcspar according to the RACK index signal pattern of an enforcement demonstration example of the present invention; And
Figure 14 is the state diagram according to the state machine of an enforcement demonstration example of the present invention.
Embodiment
Fig. 4 is the calcspar of wireless telecommunication system 400.The wireless telecommunication system 400 of Fig. 4 may be such as the standard based on IEEE802.16 family.As shown in Figure 4, wireless telecommunication system 400 can comprise one or more radio network controller (RNC, radio network controller) 420 (for example RNC 420), one or more base stations (BS) 430 (for example BS 430), one or more relay stations (RS) 440 (for example RS 440a, RS 440b and RS 440c), and one or more subscriber station (SS) 450 (for example SS 450a, SS 450b, SS 450c and SS 450d).
RNC 420 can be the known communication device of any pattern, and it can operate in wireless telecommunication system 400.RNC 420 can be responsible for resource management, mobility management, encryption in wireless telecommunication system 400 etc.In addition, RNC 420 can be responsible for the control of one or more BS 430.
Fig. 5 A is the calcspar according to the RNC 420 of an enforcement demonstration example of the present invention.Shown in Fig. 5 A, each RNC 420 may comprise one or more following elements: CPU (CPU) 421, and it is in order to carry out several computer program instructions to finish various processing and method; Random-access memory (ram) 422 and read-only memory (ROM) 423, it is in order to access information and computer program instructions; Memory 424 is in order to storage data and information; A plurality of databases 425 are in order to store form, detail list (list) or other data structure; A plurality of I/O devices 426; A plurality of interfaces 427; A plurality of antennas 428 etc.These elements are known by haveing the knack of this operator, and its details is omitted at this.
BS 430 can be the known communication device of any pattern, and it is in order to data transmit-receive and the communication of 450 of the RS in wireless telecommunication system 400 440 and/or SS.In certain embodiments, BS 430 can also be called Node B (Node-B), base transceiver device system (base transceiver system, BTS), access point (access point) etc.Communication between BS 430 and RNC 420 can be wired and/or wireless connections.Communication between BS 430 and RS 440 may be wireless.Similarly, the communication between BS 430 and SS 450 may be wireless.In one embodiment, full BS 430 can carry out wireless telecommunications with more than one RS 440 and/or more than one SS 450 in its broadcasting/range of receiving.Broadcasting area may be owing to power, position and interference (physics, electrical characteristic etc.) change.
Fig. 5 B is a calcspar of implementing the BS 430 of demonstration example for foundation of the present invention.Shown in Fig. 5 B, each BS 430 may comprise one or more following elements: at least one CPU (CPU) 431, and it is in order to carry out several computer program instructions to finish various processing and method; Random-access memory (ram) 432 and read-only memory (ROM) 433, it is in order to access information and computer program instructions; Memory 434 is in order to storage data and information; A plurality of databases 435 are in order to store form, detail list or other data structure; A plurality of I/O devices 436; A plurality of interfaces 437: a plurality of antennas 438 etc.These elements are known by haveing the knack of this operator, and its details is omitted at this.
RS 440 can be the known calculations device of any pattern, and it is in order in wireless telecommunication system 400, and BS 430, one or more other RS 440 and/or 450 of one or more SS carry out wireless data transmit-receive.RS 440 and BS 430, one or more other RS 440, and the communication between one or more SS 450 may be wireless telecommunications.Implement in the demonstration example one, in its broadcasting/range of receiving, RS 440 can carry out wireless telecommunications with BS 430, one or more RS 440 and/or one or more SS 450.Broadcasting area may be owing to power, position and interference (physics, electrical characteristic etc.) change.
Fig. 5 C is the calcspar according to the RS 440 of an enforcement demonstration example of the present invention.Shown in Fig. 5 C, each RS 440 may comprise one or more following elements: at least one CPU (CPU) 441, and it is in order to carry out several computer program instructions to finish various processing and method; Random-access memory (ram) 442 and read-only memory (ROM) 443, it is in order to access information and computer program instructions; Memory 444 is in order to storage data and information; A plurality of databases 445 are in order to store form, detail list or other data structure; A plurality of I/O devices 446; A plurality of interfaces 447; A plurality of antennas 448 etc.These elements are known by haveing the knack of this operator, and its details is omitted at this.
SS 450 can be the calculation element of any pattern, and it is in wireless telecommunication system 400, and BS 430 and/or 440 of one or more RS carry out wireless transfer of data and/or reception.SS 450 may comprise such as server, client, desktop PC, laptop computer, network computer, work station, PDA(Personal Digital Assistant), flat computer, scanner, telephone device, calling set, camera, music apparatus etc.In addition, SS 450 may comprise the one or more wireless sensers in the wireless sensor network, and it is in order to utilize centralized and/or communication is carried out in the distribute type communication.In one embodiment, SS 450 may be an action calculation element.In another embodiment, SS 450 may be the fixedly calculation element of operation in mobile environment (for example bus, train, aircraft, ship, automobile etc.).
Fig. 5 D is the calcspar according to the SS 450 of an enforcement demonstration example of the present invention.Shown in Fig. 5 D, each SS 450 may comprise one or more following elements: at least one CPU (CPU) 451, and it is in order to carry out several computer program instructions to finish various processing and method; Random-access memory (ram) 452 and read-only memory (ROM) 453, it is in order to access and store information and computer program instructions; Memory 454 is in order to storage data and information; A plurality of databases 455 are in order to store form, detail list or other data structure; A plurality of I/O devices 456; A plurality of interfaces 457; A plurality of antennas 458 etc.These elements are known for haveing the knack of this operator, and its details is omitted at this.
In addition, each node in wireless telecommunication system 400 (for example BS 430, RS 440a, 440b and 440c, and SS 450a, 450b, 450c and 450d) can comprise one or more timers, is called as " relaying is transmission timer again " in this.In one embodiment, described relaying again transmission timer may reflect data vital values (lifetiime).Relaying transmission timer again may comprise any combination of hardware and/or software.In addition, relaying transmission timer again can be by its internal mechanism, with relevant for transfer of data.That is the setting of transmission timer may be according to the set two-way time to specific objective node (for example SS 450a, SS 450b, SS 450c, SS 450d etc.) again for each relaying.
For example, time of setting of transmission timer will comprise the overall transmission time in the round-trip transmission path of RS 440a, RS 440b, RS 440c and SS 450a to the relaying of RS 440a again.Similarly, the relaying of RS440b again time of setting of transmission timer will comprise the overall transmission time in the round-trip transmission path of RS 440b, RS 440c and SS 450a, and the relaying of RS 440c time of setting of transmission timer will comprise the overall transmission time in the round-trip transmission path of RS 440c and SS 450a again.Except round-trip transmission the time, overall transmission time also can comprise one or more timing off-sets, for example data processing, transmission node and receiving node transition gap (transition gap) (for example Tx/Rx), extra part transmission time etc. again.In one embodiment, this overall transmission time Ttotal may be defined by following equation:
T total＝T Round_Trip+Δt，(1)
Wherein:
T Round_TripBe the round-trip transmission time between transmission node and the destination node; And
Δ t comprises timing off-set.
In one embodiment, the correlation values of transmission timer can be definite during connecting setting again for each relaying, and therefore can set the relaying numerical value of transmission timer again.In other embodiment, when determining one or more transmission conditions, and/or when changing one or more transmission conditions, each relaying correlation values of transmission timer again can be determined during network entry (network entry).For example, login to the network (for example wireless telecommunication system 400) at RS 440c, the relaying that can determine RS 440c is the correlation values of transmission timer (for example, T again Round_TripDeng), and can set the relaying total value of transmission timer (for example, T again TotalDeng).
In this disclosed System and method for, have three ARQ patterns.The one ARQ pattern is called the end inter mode.That is described ARQ transmission controlling mechanism operates on the other end from an end of a certain transmission path (for example BS 430 or SS 450) to same transmission path (for example SS 450 or BS 430).The 2nd ARQ pattern is called two sections ARQ patterns.Two sections ARQ mode operatings are between " trunk link " and " access link ", trunk link be BS 430 with relay station RS 440 between link (that is, this RS 440 provides service to SS 450 in transmission path), and access link is relay station RS 440 and the linking of 450 of (being subjected to its service) SS.The 3rd ARQ pattern is called by node ARQ.Operate on two adjacent nodes in the same transmission path by node ARQ transmission controlling mechanism.For example, referring to Fig. 4, operate on by node ARQ: between BS 430 and the RS 440a, between RS 440a and the RS 440b, between RS 440b and the RS 440c and between RS 440c and the SS 450a.
In certain embodiments, two sections ARQ patterns may be adapted at tunnel type and non-tunnel type transmission (tunnel and non-tunnel forwarding).May be adapted in the non-tunnel type transmission by node ARQ pattern, and it is suitable for using the distribute type resource distribution as RS 440.The ARQ pattern configuration and setting of RS 440 can be executed in during RS 440 network entry.
Fig. 6 discloses the flow chart of data processing Figure 60 0 in the wireless telecommunication system (for example wireless telecommunication system 400) of the embodiment of the invention.In specific words, Fig. 6 shows that RS 440 receives the processing of packet datas from upper (superordinate) RS 440, or BS 430 receives packet datas and delivers to the processing of the next (subordinate) RS 440 or SS 450.At this, " the next " is in order to the relative position of a node to another node to be described with " upper ".The next node is to be the node in the following chain stream of waiting to discuss between node and the receiving node SS 450.Upper node is to be the node in the cochain stream of waiting to discuss between node and the BS 430.
As shown in Figure 6, RS 440 may receive the packet data (step 605) from BS 430 or upper RS 440.Use control information, RS 440 may determine whether received packet data will transfer to the next RS 440 or SS 450 (step 610), wherein control information comprise receive packet data header information in the packet data and/or figure message elements (information element, IE).If this packet data does not transfer to the next RS 440 or SS 450 (step 610 denys), RS 440 may handle and give up the packet data (step 620) of sign like this.In one embodiment, this packet data may be contained in and receive in the data packet.Perhaps, this packet data may be the data before sent or follow-up data packet.
Yet if this packet data will be transferred to the next RS 440 or SS 450 (step 610 is), RS 440 may determine whether the data that receive comprise one or more data packets (step 615) of transmission again.Again Chuan Shu data packet means, has before transferred to RS 440 but because transmission fault or the wrong data packet that transmits again of needing.Again Chuan Shu packet data may be included in the data packet with new data, maybe may be sent in only comprising the data packet that transmits data again.In one embodiment, the packet data of transmission may be before by the data index signal (indicator) or the identification signal (identifier) of the buffer of RS 440 that RS 440 receives and is stored in again.Whether RS 440 may use the resource allocation information of before having been sent by control station (for example BS 430 or upper RS 440), serve as transmission packet data or for transmitting packet data again to determine this packet data.If the data package new biography transmission of data of attaching most importance to is arranged in this packet data, RS 440 will determine received data to comprise to transmit packet data again.
If the data that RS 440 decisions receive comprise one or more data packet (steps 615 of transmission again, be), then RS 440 may transfer to the next RS 440 or SS 450 (step 625) together with the new data packet in the received data again with this packet data.In an embodiment, RS 440 may be from obtaining the packet data that will transmit again from its buffer, and the resource allocation that uses these data to transmit again transmits this packet data again.If this packet data is for transmitting data again, then RS440 may receive only the control data from upper BS 430 or RS 440.That is received data may only comprise flow and/or application data, and do not have user's data.Do not transmit data (step 615 denys) again if this packet data does not comprise, RS 440 may be with the received packet data transmission that comprises control information and/or user's data to the next RS 440 or SS 450 (step 630).
Though be not shown among Fig. 6, if RS 440 is provided with relaying transmission timer again, when transmitting (step 630) and/or transmitting (step 625) again, the relaying that RS 440 the sets value of transmission timer again can reflect the RS 440 total round-trip transmission time T total between the datum target node therewith.
Fig. 7 discloses the flow chart of data processing Figure 70 0 according to the wireless telecommunication system (for example wireless telecommunication system 400) of an enforcement demonstration example of the present invention.In specific words, Fig. 7 shows that RS 440 receives ACK (affirmation), NACK (negative acknowledgment) and/or RACK (relaying affirmation) index signal from the next RS 440 or SS 450, to transfer to upper RS 440 or BS 430.
As shown in Figure 7, RS 440 may receive the index signal (step 705) from the next RS 440 or SS 450.If described index signal is to send from the next RS 440, then described index signal may comprise ACK or NACK index signal and one or more RACK index signal.Perhaps, this index signal may only comprise ACK or NACK index signal.Under another situation, this index signal may only comprise one or more RACK index signals.At this, the packet data that the RACK index signal is distinguished is, RS 440 successfully receives and transfer to the packet data of the next RS 440 or SS 450 from upper BS 430 or RS 440.For example, if BS 430 transmits 8 packet datas (for example data packet 1-8), but RS 440 receives only 6 data packages (for example data packet 1,3,4,5,6 and 8), and the RACK index signal may be successfully to receive (for example data packet 1,3,4,5,6 and 8) and/or this 8 data packages that is not successfully to receive (for example data packet 2 and 7) in order to confirm in these 8 data packages that.The identification signal whether RS 440 successfully receives packet data may directly and/or indirectly be finished.That is ACK, NACK and/or RACK index signal possibility by confirming received packet data and/or the packet data that does not receive, are directly confirmed received packet data; Or by distinguishing that a certain person who successfully receives packet data provides information, with indirect acknowledgment.
After receiving ACK, NACK and/or RACK index signal, RS 440 may relatively be contained in information and the buffer status information (step 710) in ACK, NACK and/or the RACK index signal.In one embodiment, RS 440 may compare ACK, NACK and/or RACK index signal information and buffer information, with the packet data of confirming that destination node receives.Based on this relatively, RS 440 whether need may determine a RACK index signal (step 715).If (step 715, not), then RS 440 may transfer to upper RS 440 or BS 430 with ACK, NACK and/or the RACK index signal that receives not need the RACK index signal.
Yet, RACK index signal (step 715 is) if desired, RS 440 may revise received index signal, to comprise RACK index signal (step 720).For example, the RACK index signal that comprised of RS 440 has received index signal.Then, RS 440 may transfer to upper RS440 or BS 430 (step 725) with the RACK index signal that is comprised with ACK, NACK and/or RACK index signal.Perhaps, RS 440 may revise header information and successfully be received and transferred to the packet data of the next RS 440 or SS 450 by upper BS 430 or RS 440 to distinguish RS 440.
Fig. 8 discloses according to of the present invention one and implements demonstration example flow chart of data processing Figure 80 0 in wireless telecommunication system (for example wireless telecommunication system 400).In specific words, Fig. 8 shows, when ACK, NACK and/or RACK index signal not when relevant relaying is received by RS 440 before transmission timer expires again, the situation of the generation RACK index signal of RS 440.
As shown in Figure 8, if this relaying is transmission timer expired before RS 440 receives ACK, NACK and/or RACK index signal (step 805) again, then RS 440 may produce the RACK index signal automatically, and the RACK index signal that is produced is sent to upper RS 440 or BS 430 (step 810).When RS 440 produces the RACK index signals automatically, but it is not when receiving from ACK, the NACK of the next RS 440 or SS 450 and/or RACK index signal, and the index signal that is produced can't comprise ACK or NACK index signal.Get and generation be that the index signal of this generation will only comprise the RACK information of RS 440.
Fig. 9 shows the sender Figure 90 0 according to the transmission controlling mechanism of an enforcement demonstration example of the present invention.In specific words, the embodiment of Fig. 9 is disclosed to be, the RACK index signal comprises ACK or NACK index signal.In the embodiment of Fig. 9, before the node from following chain transmission path received ACK, NACK and/or RACK index signal, relaying is transmission timer and not yet due again.In the system of the sender mechanism that adopts Fig. 9, resource distribution may be a distribute type or centralized.
As shown in Figure 9, BS 430 may transfer to control information all nodes (for example RS 440a, RS 440b, RS 440c and SS 450a) in the set transmission path, in order to carry out resource distribution (that is, centralization resource distribution).After resource distribution was finished, BS 430 may be sent to destination node (for example SS 450a) with packet data via one or more intermediate nodes (for example RS 440a, RS 440b and RS 440c).In addition, BS 430 may be stored in the copy of the packet data sent in the buffer.In the example of Fig. 9, this packet data can comprise 8 data packages (that is, Data (8)).
RS 440a may successfully receive this 8 packet datas, the copy of this packet data is stored to its buffer, and this packet data is sent to RS 440b.In one embodiment, to RS 440b the time, RS 440a may set relaying transmission timer T1 again with this packet data transmission.As mentioned above, the relaying of each RS 440 again the set point of transmission timer can be reflected in total two-way time between this RS 440 and the destination node (for example SS 450a).
During transferring to RS 440b from RS 440a, 2 packet datas may be owing to damage, interference, mistake etc. are lost, so RS 440b may receive only 6 packet datas.RS 440b may be with these 6 packet data transmission to RS 440c, and the copy of transmission packet data is stored to its buffer.In one embodiment, RS 440b may set its relaying transmission timer T again 2Similarly, RS 440c may receive this 6 packet datas, and with these 6 packet data transmission to SS450a.In addition, RS 440c may be stored to the copy of transmission packet data its buffer, and if feasible, set its relaying transmission timer T again 3Yet, transferring between the SS450a at RS 440c, 3 packet datas may be lost in addition, to cause having only 3 packet datas successfully to be received by SS 450a.
Receiving that in these 3 packet datas, SS 450a may be sent to BS 430 with the ACK index signal along the upper link transmission path.As shown in Figure 9, RS 440c may be at relaying transmission timer T again 3Receive this ACK index signal before expiring.Again, as mentioned above in conjunction with Fig. 6, RS 440c may be compared to the information that includes this ACK index signal the data that before are stored in its buffer.Based on this relatively, RS 440c may produce the RACK index signal, its included RACK index signal have an ACK index signal, and ACK and RACK index signal are transferred to its upper node (RS 440b).RS 440b may be at relaying transmission timer T again 2Receive before expiring this ACK with and the RACK index signal, and the information that received ACK and/or RACK index signal are comprised is compared to the data that before are stored in its buffer.Based on this relatively, self RACK index signal that RS 440b is comprised has ACK and RACK index signal, the data packet that is successfully received by RS 440b in order to affirmation.RS 440b may transfer to RS 440a with this ACK and two RACK index signals.Similarly, RS 440a may be at relaying transmission timer T again 1Receive this ACK and two RACK index signals before expiring, and the information that will be contained in this ACK and the RACK index signal is compared to the data that before are stored in its buffer.Based on this relatively, RS 440a may comprise its oneself RACK index signal, and this ACK and three RACK index signals are transferred to BS 430.
Receiving in ACK and/or the RACK index signal that BS 430 decodable code ACK and/or RACK index signal are in order to the transmission state of each internodal packet data of determining this transmission path.Based on this decoding, BS 430 may remove the packet data that SS 450a successfully receives from its buffer.BS 430 may prepare new packet data transferring to SS 450a, and redeploys these resources along this transmission path.In the situation that adopts the centralized resources configuration, BS 430 may carry out communication with RS 440a, RS 440b and RS 440c, transmit required resource again in order to decision and deployment data, in order to do making each RS 440 can receive the correct data of its most direct node (that is, upper node) in upper link direction.In the situation that adopts the distribute type resource distribution, can determine and dispose for data and transmit required resource again along each node (for example, BS 430 and RS 440) of transmission path.In the example (centralized resources configuration) of Fig. 9, BS 430 may dispose 0 resource with data transmit again (sum-RACK=8-8) with dispose 3 ' individual resource for new data transmission along first node or section (that is, between BS 430 and RS 440a); Dispose 2 resources for data transmit again (sum-RACK=8-6) with dispose 3 ' individual resource for the new data transmission in Section Point or section (that is, between RS 440a and RS440b); Dispose 2 resources for data transmit again (sum-RACK=8-6) with dispose 3 ' individual resource for the new data transmission in the 3rd node or section (that is, between RS 440b and RS440c); And dispose 5 resources for transmission again (sum-RACK=8-3) with dispose 3 ' individual resource for the new data transmission in the 4th node or section (that is, between RS 440c and SS450a).In case these resources are redeployed, then BS 430 may be sent to RS 440a with this 3 ' individual new data packet.
RS 440a may obtain these 2 data packages of being lost from its buffer between RS 440a and RS 440b, and transmits data packet again with these 2 and be added into new data transferring to RS 440b, to produce Data (2+3 ').RS 440b may receive Data (2+3 '), Data (2+3 ') is transferred to RS 440c, and this new data Data (3 ') is stored to its buffer.Similarly, RS 440c may receive Data (2+3 '), obtains these 3 data packages of being lost from its buffer between RS 440c and SS 450a, and transmits data packet again with these 3 and be added into received data, that is be Data (2+3 '), use producing Data (5+3 ').Then, RS 440c may transfer to Data (5+3 ') SS 450a, and the copy Data (3 ') of new data is stored to it removes buffer.SS 450a may receive new data and transmission again data (that is, Data (5+3 '), and the ACK index signal is transferred to BS 430 via RS 440c, RS 440b and RS 440a.The ACK index signal of being transmitted can approve and received 8 packet datas (that is, ACK (5+3 ')), wherein 3 packages be for new data and 5 packages are the data of new transmission of attaching most importance to.Receiving that in this ACK index signal, BS 430 may remove the buffer that contains new legacy data.
Though Fig. 9 demonstrates SS 450a transferring ACK index signal, SS 450a also may transmit the NACK index signal.In either case, error detection carries out as mentioned above with correction.Again, though sender Figure 90 0 is presented at single transmission path three RS 440 are arranged, we anticipate that the number of the RS 440 in transmission path may be greater than or less than shown number.In addition, though relaying transmission timer is again used in Fig. 9 demonstration during the transmission new data, also may use relaying transmission timer more again between transmission period in data.
Figure 10 is for showing the sender Figure 100 0 according to the transmission controlling mechanism of an enforcement demonstration example of the present invention.In specific words, in Figure 10, do not receive under the situation of ACK, NACK and/or RACK index signal at the next node of this transmission path, the relaying of RS 440 transmission timer again can expire.
In the system that adopts the shown sender mechanism of Figure 10, may carry out resource distribution by using distribute type or centralized resources to dispose.For example, as shown in figure 10, BS 430 may transfer to control information all nodes (for example RS 440a, RS 440b, RS 440c and SS 450a) in the set transmission path, in order to carry out resource distribution (that is centralized resources disposes).Though do not show that resource distribution also can be finished (for example, distribute type resource distribution) by the upper node in this transmission path.
After resource distribution was finished, BS 430 may be sent to destination node (for example SS 450a) with packet data via one or more intermediate nodes (for example RS440a, RS 440b and RS 440c).In addition, BS 430 may be stored in the copy of sending packet data in the buffer.In the example of Figure 10, this packet data can comprise 8 data packages (that is, Data (8)).RS 440a may successfully receive this 8 packet datas, the copy of this packet data is stored to its buffer, and this packet data is sent to RS 440b.With this packet data transmission to RS 440b simultaneously, in an embodiment, RS 440a may set relaying transmission timer T again 1As mentioned above, the relaying of each RS 440 again the set point of transmission timer can reflect total two-way time between RS 440 (for example RS 440a) and the destination node (for example SS 450a).
During transferring to RS 440b from RS 440a, 2 packet datas may be owing to damage, interference, mistake etc. are lost, so RS 440b may receive only 6 packet datas.RS 440b may be with these 6 packet data transmission to RS 440c, and the copy of transmission data is stored to its buffer.In one embodiment, RS 440b may set its relaying transmission timer T again 2Yet in the example of Figure 10, these 6 packet datas may be lost between RS 440b and RS 440c.Therefore, RS 440c and SS 450a can't receive data, and will can not carry out any action.Therefore, RS 440c and SS 450a can't prepare ACK, NACK and/or RACK index signal, also can not transmit ACK, NACK and/or RACK index signal along this upper link transmission path to BS 430.Therefore, as mentioned above and in conjunction with Fig. 8, do not receive under the situation of ACK, NACK and/or RACK index signal from the next node R S 440c or SS 450a at RS 440b, the relaying of RS 440b is transmission timer T again 2To expire.
In case relaying is transmission timer T again 2Expire, RS 440b may produce the RACK index signal and be sent to RS 440a along this upper link transmission path.The RACK index signal that is produced by RS 440b will reflect 6 packet datas that RS 440b is successfully received by RS 440a.Yet, because RS440b does not receive ACK, NACK and/or RACK index signal, so the RACK index signal that is produced by RS 440b will can not comprise other index signal.RS 440a may be at relaying transmission timer T again 1Receive this RACK index signal before expiring, and the information that will be included in this RACK index signal is compared to the data that before are stored in its buffer.Based on this relatively, RS 440a may comprise its oneself RACK index signal, and these two RACK index signals are transferred to BS 430.
Receiving that in the described RACK index signal, BS 430 may decipher described RACK index signal, in order to the transmission state of decision at each internodal packet data of this transmission path.In this embodiment, BS 430 will determine that RS 440a has received 8 data packages and RS 440b has received 6 data packages.In addition, BS 430 can determine RS 440c and SS 450a not to receive data packet.Therefore, based on this decoding, BS 430 will know any data that need not remove buffer and not transmit new data.Get and generation be will be redeployed the packet data of having lost with transmission again along the described resource of this transmission path.In some cases, BS 430 may be by to the communication of RS440a, RS 440b and RS 440c and redeploy resource along this transmission path, transmit again in order to determination data, so that can make each RS 440 receive correct data (that is, centralization resource distribution) from its most direct node in upper link direction.In other situation, will determine the reconfiguring of resource (that is, distribute type resource distribution) between itself and the next node in this transmission path along each node of this transmission path.
In the example of Figure 10, BS 430 may along first node or the section (that is, between BS 430 and RS 440a) dispose 0 resource and transmit (sum-RACK=8-8) again for data, along Section Point or the section (that is, between RS 440a and RS 440b) dispose 2 resources and transmit (sum-RACK=8-6) again for data, along the 3rd node or the section (that is, between RS 440b and RS 440c) dispose 8 resources and transmit (sum-RACK=8-0) again for data, and transmit (sum-RACK=8-0) again for data along the 4th node or 8 resources of section (that is, between RS 440c and SS 450a) deployment.In case these resources redeploy, then BS 430 may begin the transmission again of packet data.
RS 440a may obtain these 2 data packages of being lost from its buffer between RS 440a and RS 440b, and these 2 data packages (that is, Data (2)) are transferred to RS 440b again.RS 440b can receive Data (2), and is added on these 6 data packages of being lost between RS 440b and the RS 440c.Then, RS 440b can transfer to RS 440c with Data (8).Similarly, RS 440c can receive Data (8), the copy of data packet is stored in its buffer, and these 8 data packages are transferred to SS 450a.
SS 450a can receive these data of transmitting again (that is, Data (8)), and via RS 440c, RS 440b and RS 440a the ACK index signal is transferred to BS 430.As shown in figure 10, RS 440c can receive this ACK index signal, and the information that will be contained in this ACK index signal is compared to the data that before are stored in its buffer.Based on this relatively, RS 440c can produce the RACK index signal, and the RACK index signal that RS440c comprised has this ACK index signal, and this ACK and RACK index signal are transferred to its upper node (RS 440b).RS 440b can receive this ACK index signal and the RACK index signal that is comprised, and the information that will be contained in this ACK and/or the RACK index signal is compared to the data that before are stored in its buffer.Based on this relatively, RS 440b can comprise: (1) has the RACK index signal own and (2) RACK index signal of this ACK, in order to confirm the data packet of RS 440b institute success reception.RS 440b can transfer to RS 440a with this ACK and two RACK index signals.Similarly, RS 440a can receive this ACK and two RACK index signals, and the information that will be contained in this ACK and the RACK index signal is compared to the data that before are stored in its buffer.Based on this relatively, RS 440a can comprise its oneself RACK index signal, and this ACK and three RACK index signals are transferred to BS 430.
Receiving in this ACK and the RACK index signal that this ACK of BS 430 decodable codes and RACK index signal are in order to the transmission state of decision at each internodal packet data of this transmission path.Based on this decoding, BS 430 can remove the packet data of SS 450a institute success reception from its buffer, and prepares new packet data to transfer to SS 450a.In the system that uses the centralized resources configuration, BS 430 can redeploy these resources along this transmission path.Perhaps, in the system that uses the distribute type resource distribution, the upper node of each in this transmission path (for example, BS 430 or RS 440) can redeploy in the resource between itself and the next node along this transmission path.
Though Figure 10 exposes SS 450a transferring ACK index signal, we expect that SS 450a may transmit the NACK index signal.In either case, error detection will continue with correction, as mentioned above.Again, though sender Figure 100 0 is presented at single transmission path three RS 440 are arranged, we anticipate that the number of the RS 440 in transmission path may be greater than or less than shown number.In addition, though Figure 10 uses relaying transmission timer again during being presented at new data transmission, also may use relaying transmission timer more again between transmission period in data.
Figure 11 is for showing the sender Figure 110 0 according to the transmission controlling mechanism of an enforcement demonstration example of the present invention.In specific words, at Figure 11, ACK and RACK index signal are that (that is, from the transmission path of SS 450a to BS 430) loses in the upper link transmission path.Therefore, in Figure 11, do not receive under the situation of ACK, NACK and/or RACK index signal from the next node of transmission path at RS 440, the relaying of RS 440 transmission timer again can expire.
In the system that adopts the shown sender of Figure 11 mechanism, may use distribute type or centralized resources to dispose and carry out resource distribution.As shown in figure 11, BS 430 may transfer to control information all nodes in the set transmission path (for example RS 440a, RS 440b, RS 440c and SS 450a), in order to carry out resource distribution (that is centralized resources disposes).Though do not show that resource distribution also can be finished (for example, distribute type resource distribution) by the upper node in this transmission path.
After resource distribution was finished, BS 430 may be sent to destination node (for example SS 450a) with packet data via one or more intermediate nodes (for example RS440a, RS 440b and RS 440c).In addition, BS 430 may be stored in the copy of sending packet data in the buffer.In the example of Figure 11, this packet data can comprise 8 data packages, that is, Data (8).RS 440a may successfully receive this 8 packet datas, the copy of this packet data is stored to its buffer, and this packet data is sent to RS 440b.With this packet data transmission in RS 440b, in implementing demonstration example, RS 440a can set relaying transmission timer T again 1As mentioned above, the relaying of each RS440 again the set point of transmission timer can reflect total two-way time between RS 440 and the destination node (for example SS 450a).
During transferring to RS 440b from RS 440a, 2 packet datas may be owing to damage, interference, mistake etc. are lost, so RS 440b may receive only 6 packet datas.RS 440b may be with these 6 packet data transmission to RS 440c, and the copy of transmission data is stored to its buffer.In implementing demonstration example, RS 440b may set its relaying transmission timer T again 2Similarly, RS 440c may receive this 6 packet datas, and with these 6 packet data transmission to SS 450a.In addition, RS 440c may be stored to the copy of transmission data its buffer, and if feasible, set its relaying transmission timer T3 again.Yet between RS 440c and SS 450a, 4 packet datas may be lost in addition, to cause having only 2 packet data successes to be received by SS 450a.
When receiving these 2 packet datas, SS 450a may be sent to BS 430 with the ACK index signal along the upper link transmission path.As shown in figure 11, RS 440c may receive this ACK index signal before transmission timer T3 expires again at relaying.Again, as mentioned above, refer again to Fig. 6, RS 440c may be compared to the information that includes this ACK index signal the data that before are stored in its buffer.Based on this relatively, RS 440c may produce the RACK index signal, and the RACK index signal that it comprised has this ACK index signal, and with this ACK index signal therewith the RACK index signal transfer to its upper node R S 440b.
Yet in the example of Figure 11, RS 440b can't be at relaying transmission timer T again 2Receive ACK index signal and RACK index signal before expiring.The loss of ACK index signal and RACK index signal may be owing to damage, mistake, interference etc. produce.Therefore, as mentioned above and with reference to figure 8, can't receive under the situation of ACK, NACK and/or RACK index signal from the next node R S 440c or SS 450a at RS 440b, the relaying of RS 440b is transmission timer T again 2Can expire.
In case relaying is transmission timer T again 2Expire, then RS 440b may produce the RACK index signal and transmit the RACK index signal to RS 440a along this upper link transmission path.The RACK index signal that is produced by RS 440b will reflect that RS 440b successfully receives 6 packet datas from RS 440a.Yet, because RS 440b does not receive ACK, NACK or RACK index signal, so the RACK index signal that is produced by RS 440b will can not comprise other ACK, NACK or RACK index signal.
Similarly, RS 440a may be at relaying transmission timer T again 1Receive this RACK index signal before expiring, and the information that will be contained in this RACK index signal is compared to the data that before are stored in its buffer.Based on this relatively, RS 440a can comprise the RACK index signal of itself, and these two RACK index signals are transferred to BS 430.
Receiving in the described RACK index signal that the described RACK index signal of BS 430 decodable codes is in order to the transmission state of each internodal packet data of determining this transmission path.In this embodiment, BS 430 can determine RS 440a to receive 8 data packages and 6 data packages of RS 440b reception.Yet though RS 440c and SS 450a receive the data packet subclass, BS 430 can not determine whether RS 440c and SS 450a successfully receive any data packet.Therefore, based on this decoding, BS 430 will can not clear data from its buffer, can and not transmit new data yet.Get and generation be may to be redeployed along the described resource of this transmission path, with the transmission again of the transmission again of the packet data that allows to have lost or the data that are not successfully received.In some cases, BS 430 may carry out communication with RS 440a, RS 440b and RS 440c, transmit again in order to determination data, in order to do can make each RS 440 can receive its most direct node in upper link direction (that is, upper node) correct data, and BS 430 may then redeploy these resources (that is centralized resources disposes) along this transmission path.In other situation, the upper node of each of this transmission path can redeploy the resource between itself and the next node (that is, distribute type resource distribution) along this transmission path.
In the example of Figure 11, BS 430 can along first node or the section (that is, between BS 430 and RS 440a) dispose 0 resource and transmit (sum-RACK=8-8) again for data, along Section Point or the section (that is, between RS 440a and RS 440b) dispose 2 resources and transmit (sum-RACK=8-6) again for data, along the 3rd node or the section (that is, between RS 440b and RS 440c) dispose 8 resources and transmit (sum-RACK=8-0) again for data, and dispose 8 resources for transmitting (sum-RACK=8-0) again along the 4th node or section (that is, between RS 440c and SS 450a).In case these resources are redeployed, then BS 430 may begin the transmission again of this packet data.
RS 440a can obtain these 2 data packages of being lost from its buffer between RS 440a and RS 440b, and transmits transmission of data packets again to RS 440b (that is, Data (2)) with these 2.RS 440b may receive Data (2), and is added on these 6 data packages of being lost between RS 440b and the RS 440c.Then, RS 440b can transfer to RS 440c with Data (8).Similarly, RS 440c can receive Data (8), the copy of data packet is stored in its buffer, and these 8 data packages are transferred to SS 450a.
SS 450a can receive these data of transmitting again (that is, Data (8)), and via RS 440c, RS 440b and RS 440a the ACK index signal is transferred to BS 430.As shown in figure 11, RS 440c can receive this ACK index signal, and relatively is contained in information and the data that before were stored in its buffer in this ACK index signal.Based on this relatively, RS 440c can produce the RACK index signal, and the RACK index signal that RS 440c is comprised has this ACK index signal, and this ACK and RACK index signal can be transferred to its upper node (RS 440b).RS 440b can receive this ACK index signal and RACK index signal, and relatively is contained in information and the data that before were stored in its buffer in this ACK and/or the RACK index signal.Based on this relatively, the RACK index signal that RS 440b oneself is produced can comprise this ACK and RACK index signal, in order to the data packet of confirming successfully to be received by RS 440b.RS 440b can transfer to RS 440a with this ACK and two RACK index signals.Similarly, RS 440a can receive this ACK and two RACK index signals, and relatively is contained in information and the data that before were stored in its buffer in this ACK and the RACK index signal.Based on this relatively, RS 440a can do by myself and produces the RACK index signal, and this ACK and three RACK index signals are transferred to BS430.
Receiving in this ACK and the RACK index signal that this ACK of BS 430 decodable codes and RACK index signal are in order to the transmission state of decision at each internodal packet data of this transmission path.Based on this decoding, BS 430 can remove the packet data that has successfully been received by SS 450a from its buffer.BS 430 can prepare new packet data to transfer to SS 450a, therefore can redeploy these resources along this transmission path.
Though Figure 11 discloses SS 450a transferring ACK index signal, SS 450a also may transmit the NACK index signal.In either case, error detection will continue with correction, as mentioned above.Again, though sender Figure 110 0 is presented at three RS440 that single transmission path has, we anticipate that the number of the RS 440 in transmission path may be greater than or less than this number.In addition, though Figure 11 uses relaying transmission timer again during being presented at new data transmission, also may use relaying transmission timer more again between transmission period in data.
Figure 12 shows according to the ACK of an enforcement demonstration example of the present invention and the sender figure of RACK index signal.For this ACK and RACK index signal are described, Figure 12 uses the example of Fig. 9.That is, BS430 transmits 8 data packages to RS 440a, RS 440a successfully receives and transmits 8 data packages to RS 440b, and RS 440b successfully receives and transmit these 6 data packages to RS 440c, and RS 440c successfully receives and transmit these 6 data packages to SS 450a.Yet SS 450a only successfully receives 3 data packages, and therefore, the ACK index signal that SS 450a the is transmitted merit of can accomplishing is received 3 data packages.
As shown in figure 12, this ACK index signal that is produced by SS 450a may comprise 8 data zones, and SS 450a can confirm 3 data packages that success receives.Though the employed data area of the example of Figure 12 is single position, the figure place of these data areas or configuration and setting can be any.As shown in figure 12, SS 450 may produce the ACK index signal of " 11000100 ".SS 450a may be sent to RS 440c with the ACK index signal that is produced.
RS 440c more thus the information that provided of ACK index signal (that is, the identification signal of the data packet that successfully receives by SS 450a), the data packet that successfully receives by RS 440c and in this ACK index signal, be denoted as the data packet that successfully receives by SS 450a and relatively.The RACK index signal that RS440c produced can be confirmed successfully to be received but the data packet of not informed by this ACK index signal by RS 440c.About the data that successfully receive and informed by the ACK index signal by RS 440c, RS 440c may insert " don ' t care (no matter it) " or " no additionalinformation (no extraneous information) " index signal (for example "-"), and it produces the RACK index signal and can comprise received ACK index signal.As shown in figure 12, the RACK index signal that is produced by RS 440c may be "--110-10 ", and this ACK and RACK index signal will be " 11000100 " and "--110-10 ".In certain embodiments, the RACK index signal is added in the control section that the ACK index signal may be illustrated in information, uses such as a certain position at this information heading.RS 440c may be sent to RS 440b with this ACK and RACK index signal.
RS 440b more thus the information that provided of ACK index signal and RACK index signal (that is, the identification signal of the data packet that success is received by SS 450a and RS 440c), and more the data that received by RS 440b of success are denoted as in the ACK index signal successfully by the data packet of SS450a reception therewith and are denoted as successfully data packet by the RS440c reception in this RACK index signals.The RACK index signal that RS 440b is produced can be confirmed successfully by RS 440b reception but not by the data packet of this ACK and/or RACK index signal sign.About the data that successfully receive and indicated by ACK and/or RACK index signal by RS 440b, RS440b may insert " don ' t care " or " no additional information " index signal (for example "-"), and the RACK index signal that it produced can comprise received ACK and RACK index signal.As shown in figure 12, the RACK index signal that is produced by RS 440b may be "----0-0 ", and this ACK and RACK index signal will to be " 11000100 " follow "--110-10 " and "----0-0 ".As mentioned above, in certain embodiments, add described RACK index signal so far the ACK index signal may be illustrated in the control section of this information, by using such as the position in this information heading.In this example, RS 440b may be illustrated in this information heading, and all positions of this kind RACK are " don ' t care ".RS 440b may be sent to RS 440a with this ACK index signal and the RACK index signal that is comprised.
RS 440b more thus the information that provided of ACK index signal and RACK index signal (that is, successfully by SS 450a, the identification signal of the data packet that RS 440c and RS 440b are received), and more successfully the data that receive by RS 440a with in this ACK index signal, be denoted as successfully the data packet that receives by SS 450a and in this RACK index signal, be denoted as successfully by the data packet of RS 440c with RS 440b reception.Based on this relatively, the RACK index signal that RS440a produced can be confirmed successfully by RS 440a reception but not by the data packet of this ACK and/or RACK index signal sign.About the data that successfully receive and indicated by ACK and/or RACK index signal by RS 440a, RS 440a may insert " don ' t care " or " no additional information " index signal (for example "-"), and the RACK index signal that it produced comprises received ACK and RACK index signal.As shown in figure 12, the RACK index signal that is produced by RS 440a may be "----1-1 ", and this ACK and RACK index signal will to be " 11000100 " follow "--110-10 " and "----1-0 ".RS 440a can transmit ACK and RACK index signal to BS 430.
Figure 13 shows different RACK index signal patterns.As shown in figure 13, have four kinds of RACK patterns, it can be in order to represent one or more RACK index signals.Generally speaking, in disclosed embodiment, 440 couples of each RS are expressed as the data that received and are considered as " don ' t care (no matter it) " in the ACK index signal, and only report intermediate node or the received data of access node (that is RS 440) on the transmission path.In Figure 13, the ACK index signal confirms that block 1 and 7 is for successfully being received by SS 450.In Figure 13, block 1 and 7 is by solid demonstration.
In RACK pattern 0, be called " Selective RACK Map (selectivity RACK figure) " in this, (block sequence number is to re-use in the RACK index signal BSN), to economize on resources to the block of information sequence number of ACK.Therefore, in this RACK pattern, have only 4 data blocks (that is, 3,5,6 and 8) to be reported in the RACK index signal, and block 1 and 7 is reported in the ACK index signal.Block 3,5,6 and 8 is to show that with point- like block 1 and 7 is with solid demonstration.Therefore, this node or section are used pattern 0 (selectivity RACK figure), and the RACK data flow after BSN is " 00101101 ".
RACK pattern 1 is called " Cumulative RACK Map (cumulative bad RACK figure) " in this, can be used in the time of will reporting the continuous data block.In this example, the RACK index signal will be reported 4 continuous data blocks, that is, 2,3,4 and 5.Therefore, data flow " 0100 " will be apprised of in order to represent four data blocks.Block 2,3,4 and 5 is to show that by point- like block 1 and 7 is with solid demonstration.Data flow will continue and begin after BSN.Therefore, this section uses the Cumulative RACK Map of pattern 1, and the RACK data flow behind BSN may be " 00100000 ", and preceding four bit tables are shown with 4 continuous data blocks (that is " 0010 " is other four positions then).Perhaps, this section uses the Cumulative RACK Map of pattern 1, and then the RACK data flow after BSN may be " 00000100 ", uses final four positions to represent to have 4 continuous data blocks (that is " 0010 " is after other four positions).
RACK pattern 2 is called " Cumulative with Selective RACK Map (accumulation formula selectivity RACK figure) " in this, may use when the continuous data block has some mask data block.In this example, except the block 1 and 7 of ACK, block 2,3,4,6 and 8 also needs to be reported.Therefore, data flow " 0011 " will be used among the Selective RACK Map with expression block 2-4.In Selective RACK Map, will be from the data flow " 10101 " that final expression block of information begins in order to expression block 6 and 8.In other words, in the Cumulative of pattern 2 with Selective RACK Map, first block that is expressed as " 1 " is the final block of information in Selective RACK Map.In Figure 13, block 1 and 7 is with solid demonstration, and block 2,3,6 and 8 shows with point-like, and the Cumulative with Selective RACK Map of Selective RACK Map and pattern 2 shows with diagonal stripes.Therefore, this section uses the Cumulative with Selective RACK Map of pattern 2, and the RACK data flow behind BSN may be " 01110101 ".Perhaps, this section uses the Cumulativewith Selective RACK Map of pattern 2, and the RACK data flow behind BSN can be " 10101011 ".In either case, the RACK data flow can be any combination of " 011 " and " 10101 ".
RACK pattern 3 is called " Cumulative with R-Block Sequence (accumulation formula Zone R piece order) " in this, may be in order to confirm the ACK and the NACK of the block of reporting.In this, " 1 " can represent ACK and " 0 " can represent NACK.In this example, except the block 1 and 7 of ACK, block 2 and 3 should be reported to ACK, and block 4-7 should be reported to NACK, and block 8 should be reported to ACK.Therefore, this Sequence ACK Map is " 101 ", and the length of follow-up block is " 0010 ", " 0100 " and " 0001 ".
By using ACK and RACK index signal, Control Node (for example BS 430) but acquired information and determine every section resource distribution.In resource distribution, such as, the number of resource requirement can be taken passages (abstract).In embodiment, the length of number that does not indicate the position in Selective RACK Map (RACK pattern 0 and RACK pattern 2) and block of information order (RACK pattern 1, RACK pattern 2 and RACK pattern 3) can be in order to confirm to transmit the resource needed number again.In data are transmitted again, transmit needed correct data block again and also may be taken passages.For example, the data that are expressed as " 0 " in Selective/Cumulative RACK Map (RACK pattern 0, RACK pattern 1 and RACK pattern 2), and the data in the NACK block order in Cumulative with R-Block Sequence ACKMap (accumulation formula R-Block order ACK figure) may be identified, for transmission again.
Figure 14 shows the ARQ state diagram 1400 according to an enforcement demonstration example of the present invention.Generally speaking, state diagram may be in order to explanation, in response in one or more trigger events, and the state of state machine and/or operation.In response in one or more trigger events, state machine may storage device or the state of equipment, changes the state of this device or equipment, and/or makes this device or equipment carry out one or more actions.
State machine may be implemented by any combination of using software and/or hardware.Implement in the demonstration example one, each RS 440 may comprise one or more state machines with BS 430.Implement in the demonstration example one, referring to Fig. 5 C, each RS 440 may comprise one or more state machines with each BS 430, it is implemented by the combination of using software and hardware, wherein software for example is stored on RAM442 or the ROM 443, and hardware is then carried out in response to one or more trigger events and handled or action.For example, when trigger event was received and/or discerns by RS 440, interrupt signal may be delivered to CPU 441, caused the one or more processing of CPU 441 beginnings.In certain embodiments, state machine may be relevant to one group of transmission of specific receiving system (for example SS 450 and/or BS 430).In other embodiments, state machine may be relevant to each transmission of specific receiving system (for example SS 450 and/or BS430).For simplicity, will Figure 14 be described with reference to the ARQ state machine of RS 440.Yet, BS 430 also may implement the ARQ state machine with and function, for example be exposed in the state diagram 1400 of Figure 14.
As shown in figure 14, the ARQ state machine of RS 440 and/or BS 430 (for example may comprise a plurality of states, Not Sent (not sending) 1410, Outstanding (unresolved) 1420, Done (finishing) 1430, Discard (giving up) 1440 and Waiting for Retransmission (wait for transmission) again 1450, and the operation of ARQ state machine may relate to from some state-transition and becomes another state.In one embodiment, the ARQ state may be defined among ARQ control information piece or tunneling data unit (TDU).TDU may be in order to be compressed into single transmission data units with several packet data unit (PDU) or ARQ block.ARQ state diagram shown in Figure 14 may be applied to the data unit transmission of any pattern, such as PDU, TDU, ARQ block etc.
Before RS 440 sent data, the state of the ARQ state machine of RS 440 may be not send 1410.In certain embodiments, the ARQ state machine may be set or be initialized to Not Sent1410 earlier.When transferring data to another node of network, it is unresolved 1420 that the ARQ state machine of RS 440 may move to, and can be maintained in unresolved 1420, produces up to one or more trigger events.For example, under the situation that does not have error in data to produce, RS 440 may receive the ACK from endpoint node (for example SS 450), and therefore the ARQ state machine of RS 440 may move to from unresolved 1420 and finish 1430.Yet, if RS 440 is before the ACK that receives from endpoint node (for example SS 450), just (for example receive from another intermediate node, another RS 440) ACK, it represents that some node successfully transfers data to endpoint node, then the ARQ state machine of RS 440 may rest in unresolved 1420, and waits for the transmission again between another intermediate node and the endpoint node.In one embodiment, when RS 440 received ACK from intermediate node, it can't change state, and on the contrary, the ARQ state machine of RS 440 may be maintained in unresolved 1420.
Some trigger event may make RS 440 move to wait from unresolved 1420 to transmit 1450 again.For example, if ARQ_Retry_Timeout produces, then the ARQ state machine of RS 440 may move to wait and transmits.The generation of ARQ_Retry_Timeout may reflect, tries to transmit again the passage of the relevant scheduled time of data.The ARQ state machine of RS 440 may be maintained at wait and transmit 1450 again, is transmitted again from the ACK of endpoint node or another intermediate node or up to data up to its reception.Similarly, the ARQ state machine of RS 440 may move to wait from unresolved 1420 and transmit 1450 again when it receive NACK from endpoint node (for example SS 450) or intermediate node (for example, another RS 440).The ARQ state machine of RS 440 may be maintained at wait and transmit 1450 again, till it receives trigger event.In one embodiment, the ARQ state machine of RS 440 may be maintained at wait and transmit 1450 again, receives from the ACK of endpoint node or another intermediate node or till data need to be transmitted again up to it.
In one embodiment, in case ACK or data that RS 440 receives from another intermediate node need to be transmitted again, the ARQ state machine of RS 440 will be from waiting for that transmitting 1450 again is moved back into unresolved 1420.When data need to be transmitted again, can transmit again earlier after the data more again data to be transmitted again behind transition status or the first transition status and all can.Yet, if transfer of data or again transmission in data vital values (being called as " Data_Lifetime "), do not finish, data can be rejected and the ARQ state machine of RS 440 can move to and gives up 1440.In another embodiment, when the ACK that receives from intermediate node, the ARQ state machine of RS 440 can't be unresolved 1420 from waiting for that transmission again is transformed into, and it may be maintained at wait and transmit 1450 again, till another predetermined trigger incident of generation.
In two sections ARQ patterns, have the state machine of two patterns: a kind of is access link (access link) ARQ state machine, and another kind is trunk link (relay link) ARQ state machine.The operation of access link ARQ state machine may be relevant to the transmission that utilizes between SS450 that access link carries out and its access RS 440 (that is, the network access point of SS 450).The operation of trunk link ARQ state machine may be relevant to the transmission that utilizes 440 of BS 430 that trunk link carries out and relay station RS.When two sections ARQ mode operatings, when ARQ block of information or TDU damaged in trunk link or lose, BS 430 may be ranked to the transmission again of access RS 440.Correspondingly, when ARQ block of information or TDU damaged in access link, RS 440 may be ranked to the transmission again of SS 450.When middle RS 440 was present between BS 430 and the access RS 440, middle RS 440 can pass on ARQ block of information and ARQ information between BS 430 and access RS 440.
In non-tunnel mode system, may be used by BS 430 and access RS 440 corresponding to the ARQ message elements (IE) of non-tunnel transmission, in order to the ACK and/or the NACK of the transmission data that are illustrated in 440 of BS 430 and access RS.In the tunnel mode system, the ARQ IE of tunnel package transmission may be used by BS 430 and access RS 440, in order to the ACK and/or the NACK of the transmission data that are illustrated in 440 of BS 430 and access RS.Both patterns at this (that is, tunnel and non-tunnel transmission pattern) in, these ARQ IE are transmitted as the compression payload (that is " piggybacked ") with package MAC PDU, or the payload (payload) of independent MAC PDU.
Disclosed embodiment may be implemented in any network configuration of utilizing wireless technology, agreement or standard.Mode according to this, disclosed embodiment can make system more effectively utilize resource.By the transmission again of location packet data, disclosed embodiment can improve performance.Especially, disclosed embodiment can shorten the error detection of wireless network and signal processing time that data are transmitted again and improve data traffic.Especially, disclosed System and method for can improve error detection and the correction at multinode transmission wireless network.In addition, disclosed System and method for can reduce leads because of (for example exchanging in the unit internal signal, between RS 440c and RS 440b) and the unit between the mobility of the wireless network that caused of handshaking (for example, between the RS 440c and RS 440 of the coverage outside of BS 430).
In sum, though the present invention discloses as above with a preferred embodiment, so it is not in order to limit the present invention.The persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when looking being as the criterion that claim defines.

Claims (35)

1. the method for the transmission control in a wireless telecommunication system is characterized in that, comprises:
At least one section transfer resource configuration of the transmission path of decision between a conveyer and a receiving system, wherein this transmission path comprises one or more middle devices;
By this conveyer, data are sent to this receiving system;
By this conveyer, receive one or more additional reception index signals from these one or more middle devices, wherein these one or more additional reception index signals are relevant to these data of delivering to this receiving system;
This transfer resource again and again of at least one section configuration of this transmission path of decision between this conveyer, these one or more middle devices and this receiving system; And
Based on these one or more additional reception index signals at least one, begin the transmission again of these data.
2. the method for the transmission control in a wireless telecommunication system as claimed in claim 1 is characterized in that, wherein determine every section of this transmission path this again the transfer resource configuration also comprise:
Communication is in each middle device of these one or more middle devices that are provided with along this transmission path between this conveyer and this receiving system.
3. the method for the transmission control in a wireless telecommunication system as claimed in claim 1 is characterized in that, also comprises:
This receiving system receives index signal, and wherein this reception index signal is in response to these data of delivering to this receiving system;
Based on this reception index signal at least one, this of one or more snippets of this transmission path of decision between this conveyer, these one or more middle devices and this receiving system transfer resource configuration again with these one or more additional reception index signals;
Based on this reception index signal at least one, begin the transmission again of these data with these one or more additional reception index signals; And
Receive index signal and these one or more additional reception index signals based on this, this conveyer decision is by the identification of these data that respectively this middle device and this receiving system received.
4. the method for the transmission control in a wireless telecommunication system as claimed in claim 3, it is characterized in that, wherein this reception index signal is to be an affirmation index signal or a negative acknowledgment index signal, and these one or more additional reception index signals are to be that a relaying is confirmed index signal; And this affirmation index signal or this negative acknowledgment index signal are confirmed successfully one first group by one or more transmission data packets that this receiving system received; And this relaying affirmation index signal is confirmed one second group of one or more transmission data packets, and it is successfully received by this one or more middle device, but is not successfully received by this receiving system as yet.
5. the method for the transmission control in a wireless telecommunication system as claimed in claim 1 is characterized in that, wherein these one or more additional reception index signals are to confirm index signal for relaying; And this relaying confirms that index signal confirms wherein a group of one or more transmission data packets, and it is successfully to be received by this one or more middle device, but is not successfully received by this receiving system as yet.
6. the method for the transmission control in a wireless telecommunication system as claimed in claim 1 is characterized in that, also comprises:
By this conveyer with this data storing in a storage area.
7. the wireless communication apparatus of wireless telecommunications is characterized in that, comprises:
At least one memory is in order to the storage data and instruction; And
At least one processor, it is in order to this memory of access, and when carrying out this instruction, its in order to:
At least one section transfer resource configuration of the transmission path of decision between this wireless communication apparatus and a receiving system, wherein this transmission path comprises one or more middle devices;
Data are sent to this receiving system;
This conveyer receives one or more additional reception index signals from these one or more middle devices, and wherein these one or more additional reception index signals are relevant to these data of delivering to this receiving system;
This transfer resource again and again of at least one section configuration of this transmission path of decision between this wireless communication apparatus, these one or more middle devices and this receiving system; And
Based on these one or more additional reception index signals at least one, begin the transmission again of these data.
8. the wireless communication apparatus of wireless telecommunications as claimed in claim 7 is characterized in that, wherein when this at least one processor be to be designed in order to determining this transfer resource when configuration again, this at least one processor be further be designed in order to:
Communication is in each middle device of these one or more middle devices that are provided with along this transmission path between this conveyer and this receiving system.
9. the wireless communication apparatus of wireless telecommunications as claimed in claim 7 is characterized in that, wherein this at least one processor be further be designed in order to:
Receive index signal from this receiving system, wherein this reception index signal is in response to these data of delivering to this receiving system;
Based on this reception index signal at least one, this of one or more snippets of this transmission path of decision between this wireless communication apparatus, these one or more middle devices and this receiving system transfer resource configuration again with these one or more additional reception index signals;
Based on this reception index signal at least one, begin the transmission again of these data with these one or more additional reception index signals; And
Receive index signal and these one or more additional reception index signals based on this, decision is by the identification of these data that each middle device and this receiving system received.
10. the wireless communication apparatus of wireless telecommunications as claimed in claim 9, it is characterized in that, wherein this reception index signal is to be an affirmation index signal or a negative acknowledgment index signal, and these one or more additional reception index signals are to be that relaying is confirmed index signal; And this affirmation index signal or this negative acknowledgment index signal are confirmed successfully one first group by one or more transmission data packets that this receiving system received; And this relaying affirmation index signal is confirmed one second group of one or more transmission data packets, and it is successfully to be received by this one or more middle device, but is not successfully received by this receiving system as yet.
11. the wireless communication apparatus of wireless telecommunications as claimed in claim 7 is characterized in that, wherein these one or more additional reception index signals are to confirm index signal for relaying; And described relaying confirms that index signal confirms wherein a group of one or more transmission data packets, and it is successfully to be received by this one or more middle device, but is not successfully received by this receiving system as yet.
12. the wireless communication apparatus of wireless telecommunications as claimed in claim 7 is characterized in that, wherein this at least one processor further be designed in order to:
With this data storing in a storage area.
13. the method in the transmission control of a wireless telecommunication system is characterized in that, comprises:
Receive the transmission data to transfer to a receiving system by a middle device;
These transmission data are transferred to next the next middle device or this receiving system in the transmission path between this middle device and this receiving system;
Begin a timer, wherein this timer is to set according to the round-trip transmission time between this middle device and this receiving system;
Produce one and replenish the reception index signal;
If before this timer expires, this middle device receives at least one of index signal and one or more the next additional reception index signals, then:
Comprise produced should replenish receive index signal, its have this receptions index signal and these one or more the next additional reception index signals this at least one, and;
With this receive index signal and these one or more the next additional reception index signals this at least one, and this additional index signal that receives that is produced that is comprised, be sent to the next upper middle device in this transmission path between this middle device and a conveyer or be sent to this conveyer; And
If before this timer expires, this middle device does not receive at least one of index signal or one or more the next additional reception index signals, then:
The reception index signal of should replenishing that is produced is sent to the upper middle device of this next one or this conveyer.
14. the method for controlling in the transmission of a wireless telecommunication system as claimed in claim 13, it is characterized in that, wherein this round-trip transmission time comprised along a transmission time of every period of this transmission path between this middle device and this receiving system, and one or more timing off-sets, it is relevant to this receiving system and along any middle device set on this transmission path between this middle device and this receiving system.
15. the method for controlling in the transmission of a wireless telecommunication system as claimed in claim 13 is characterized in that, also comprises:
Determine whether these transmission data comprise new data;
If this transmits data packets contains new data, then this new data is stored in the storage area of this middle device;
Determine these transmission data whether will comprise and transmit data again;
Transmit data again if these transmission data will comprise, then fetch this and transmit data again from a storage area of this middle device; And
With these transmission data and transmit data again and transfer to the next middle device in the transmission path between this middle device and this receiving system or transfer to this receiving system.
16. the method for controlling in the transmission of a wireless telecommunication system as claimed in claim 13, it is characterized in that, wherein this reception index signal is to be an affirmation index signal or a negative acknowledgment index signal, and these one or more the next additional reception index signals are to be that relaying is confirmed index signal; And this affirmation index signal or this negative acknowledgment index signal confirm one first group of one or more transmission data packets, and it is successfully received by this receiving system; And these one or more relayings affirmation index signals are confirmed one second group of one or more transmission data packets, and it is successfully to be received by one or more the next middle device, but is not successfully received by this receiving system as yet.
17. the method for controlling in the transmission of a wireless telecommunication system as claimed in claim 13 is characterized in that, wherein should replenish and receive index signal be to be that a relaying is confirmed index signal; And this relaying confirms that index signal is confirmed successfully to be received by this middle device but as yet not successfully by these transmission data that this receiving system received.
18. the wireless communication apparatus of wireless telecommunications is characterized in that, comprises:
At least one memory is in order to the storage data and instruction; And
At least one processor, it is in order to this memory of access, and when carrying out described instruction, in order to:
Receive the transmission data to transfer to a receiving system by this wireless communication apparatus;
These transmission data are transferred to next the next middle device or this receiving system in the transmission path between this wireless communication apparatus and this receiving system;
Begin a timer, wherein this timer is to set according to the round-trip transmission time between this wireless communication apparatus and this receiving system;
Produce one and replenish the reception index signal;
If before this timer expires, this wireless communication apparatus receives at least one of index signal and one or more the next additional reception index signals, then:
Comprise produced should replenish receive index signal, its have this receptions index signal and these one or more the next additional reception index signals this at least one, and
With this receive index signal and these one or more the next additional reception index signals this at least one, and this additional index signal that receives that is produced that is comprised, be sent to the next upper middle device in this transmission path between this wireless communication apparatus and a conveyer or be sent to this conveyer; And
If before this timer expires, this wireless communication apparatus does not receive at least one of this reception index signal or one or more the next additional reception index signals, then:
The reception index signal of should replenishing that is produced is sent to the upper middle device of this next one or this conveyer.
19. the wireless communication apparatus of wireless telecommunications as claimed in claim 18, it is characterized in that, wherein this round-trip transmission time comprises a transmission time of every period along this transmission path between this wireless communication apparatus and this receiving system, and one or more timing off-sets, it is relevant to this receiving system and along any middle device set on this transmission path between this wireless communication apparatus and this receiving system.
20. the wireless communication apparatus of wireless telecommunications as claimed in claim 18 is characterized in that, wherein this at least one processor be further be designed in order to:
Determine whether these transmission data comprise new data;
If this transmits data packets contains new data, then this new data is stored in the storage area of this wireless communication apparatus;
Determine these transmission data whether will comprise and transmit data again;
Transmit data again if these transmission data will comprise, then fetch this and transmit data again from a storage area of this wireless communication apparatus; And
With these transmission data and transmit data again and transfer to a next middle device or this receiving system in the transmission path between this wireless communication apparatus and this receiving system.
21. the wireless communication apparatus of wireless telecommunications as claimed in claim 18, it is characterized in that, wherein this reception index signal is to be an affirmation index signal or a negative acknowledgment index signal, and these one or more the next additional reception index signals are to be that relaying is confirmed index signal; And being somebody's turn to do one first group that confirms index signal or this negative acknowledgment index signal affirmation transmission data, it is successfully received by this receiving system; And these one or more relayings confirm that index signals confirm one second group of one or more transmission data, and it is successfully to be received by one or more the next middle device but successfully do not received by this receiving system as yet.
22. the wireless communication apparatus of wireless telecommunications as claimed in claim 18 is characterized in that, wherein should replenish and receive index signal is to confirm index signal for a relaying; And this relaying confirms that index signal confirms successfully to be received by this wireless communication apparatus, but as yet not successfully by these transmission data that this receiving system received.
23. the method for operation of the wireless communication apparatus in a wireless telecommunication system is characterized in that, this method comprises:
Set a unit state for one first state, wherein this first state is to be an initial condition;
Taking place this unit state to be changed over one second state from this first state in one first trigger event, wherein this second state is to be defined as that data have been transmitted and a relaying timer is still not yet due;
When this relaying timer expires, this unit state is changed over a third state and begins the transmission again of these data from this second state;
When still not yet due and this wireless communication apparatus receives one of them of an intermediate node negative acknowledgment index signal, an endpoint node negative acknowledgment index signal or an overtime signal when this relaying timer, this unit state is changed over this third state from this second state; And
When this wireless communication apparatus receives an endpoint node and confirms that index signal and this relaying timer are still not yet due, this unit state is changed over a four condition from this second state.
24. the method for operation of the wireless communication apparatus in a wireless telecommunication system as claimed in claim 23 is characterized in that, also comprises:
When this wireless communication apparatus receives intermediate node affirmation index signal, this second state is maintained this unit state; And
When this unit state is when being in this third state and this wireless communication apparatus and receiving this intermediate node and confirm index signal or transmit index signal again and again, this third state is maintained this unit state.
25. the method for operation of the wireless communication apparatus in a wireless telecommunication system as claimed in claim 23 is characterized in that, also comprises:
When this unit state is when being in this third state and this data and needing be transmitted again, this unit state is changed over this second state from this third state;
Again transmit these data; And
When this unit state is when being in this third state and this wireless communication apparatus and receiving this intermediate node and confirm index signal, this unit state is changed over this second state from this third state.
26. the method for operation of the wireless communication apparatus in a wireless telecommunication system as claimed in claim 23 is characterized in that, also comprises:
When this unit state is when being in this third state and this wireless communication apparatus and receiving this endpoint node and confirm index signal, this unit state is changed over this four condition from this third state;
When this unit state is when being in this third state and this relaying timer and expiring, give up this data; And
When this unit state is when being in this third state and this relaying timer and expiring, this unit state is changed over one the 5th state from this third state.
27. the method for operation of the wireless communication apparatus in a wireless telecommunication system as claimed in claim 23 is characterized in that, also comprises:
If this unit state is to be in one the 5th state and this wireless communication apparatus to receive an endpoint node and confirm index signal, then this device is changed over this four condition from the 5th state;
If this unit state is to be in one the 5th state and this wireless communication apparatus to receive an intermediate node and confirm index signal, then the 5th state is maintained this unit state; And
When this unit state is to be in one of them of this second state or this four condition, and wireless communication apparatus is when receiving a data life overtime signal, with this unit state from this second state or this four condition this one of them change over the 5th state.
28. the method for operation of the wireless communication apparatus in a wireless telecommunication system as claimed in claim 23 is characterized in that, wherein this first trigger event is the transmission for new data.
29. the wireless communication apparatus of wireless telecommunications is characterized in that, this wireless communication apparatus comprises:
At least one memory is in order to the storage data and instruction; And
At least one processor, it is in order to access memory, and when carrying out described instruction, in order to:
Set a unit state for one first state, wherein this first state is to be an initial condition;
Taking place this unit state to be changed over one second state from this first state in one first trigger event, wherein this second state is to be defined as that data have been transmitted and a relaying timer is still not yet due;
When this relaying timer expires, this unit state is changed over a third state and begins the transmission again of these data from this second state;
When still not yet due and this wireless communication apparatus receives one of them of an intermediate node negative acknowledgment index signal, an endpoint node negative acknowledgment index signal or an overtime signal when this relaying timer, this unit state is changed over this third state from this second state; And
When this wireless communication apparatus receives an endpoint node and confirms that index signal and this relaying timer are still not yet due, this unit state is changed over a four condition from this second state.
30. the wireless communication apparatus of wireless telecommunications as claimed in claim 29 is characterized in that, wherein this processor be further be designed in order to:
When this wireless communication apparatus receives intermediate node affirmation index signal, this second state is maintained this unit state; And
When this unit state is when being in this third state and this wireless communication apparatus and receiving this intermediate node and confirm index signal or transmit index signal again and again, this third state is maintained this unit state.
31. the wireless communication apparatus of wireless telecommunications as claimed in claim 29 is characterized in that, wherein this processor be further be designed in order to:
When this unit state is when being in this third state and this data and needing be transmitted again, this unit state is changed over this second state from this third state;
Again transmit these data; And
When this unit state is when being in this third state and this wireless communication apparatus and receiving this intermediate node and confirm index signal, this unit state is changed over this second state from this third state.
32. the wireless communication apparatus of wireless telecommunications as claimed in claim 29 is characterized in that, wherein this processor be further be designed in order to:
When this unit state is when being in this third state and this wireless communication apparatus and receiving this endpoint node and confirm index signal, this unit state is changed over this four condition from this third state;
When this unit state is when being in this third state and this relaying timer and expiring, give up this data; And
When this unit state is when being in this third state and this relaying timer and expiring, this unit state is changed over one the 5th state from this third state.
33. the wireless communication apparatus of wireless telecommunications as claimed in claim 29 is characterized in that, wherein this processor be further be designed in order to:
If this unit state is to be in one the 5th state and this wireless communication apparatus to receive an endpoint node and confirm index signal, then this device is changed over this four condition from the 5th state; And
If this unit state is to be in one the 5th state and this wireless communication apparatus to receive an intermediate node and confirm index signal, then the 5th state is maintained this unit state.
34. the wireless communication apparatus of wireless telecommunications as claimed in claim 29 is characterized in that, wherein this processor be further be designed in order to:
When this unit state is when being in one the 5th state and this wireless communication apparatus and receiving an intermediate node and confirm index signal, the 5th state is maintained this unit state; And
When this unit state is to be in one of them of this second state or this four condition, and this wireless communication apparatus is when receiving a data life overtime signal, with this unit state from this second state or this four condition this one of them change over one the 5th state.
35. the wireless communication apparatus of wireless telecommunications as claimed in claim 29 is characterized in that, wherein this first trigger event is the transmission for new data.
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