CN101039526A - Method for selecting user stay and relay node of central control wireless relay network - Google Patents
Method for selecting user stay and relay node of central control wireless relay network Download PDFInfo
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Abstract
The present invention relates to a selection method of a user resident mechanism pf a wireless multi-hop relay network and synergy relay nodes centralizedly controlled by the base station. The present invention provides a user resident mechanism, uses thefriendly relay nodes relay and control the signaling transmission to complete; at the same time provides a relay node selection method of carrying out the centralized control and management to the entire relay node selection process by the base station, which is carried in synergies through potential relay nodes and the target terminal. The identification and selection of the relay node are divided into two steps: the first step is to identify the appropriate relay nodes, to constitute an alternative assembly; and the second step is to select a relay nodes subset to tansmit the carrying business from the alternative assembly according to the multi-optimization objective selection algorithm, and contemporarily completing the business carrying configuration of the relay nodes in the subset based on the business properties, as well as the hollow characteristics. The method not only focuses on a two-hop wireless relay network, but also can extend to the multi-hop wireless relay networks, or even extends to a wireless Mesh network and a wireless sensor network.
Description
Technical field
The invention belongs to wireless communication field, be specifically related in a kind of wireless relay network selection resident by the base station and collaborative via node and carry out central controlled trunk node selection method the user, this method not only lays particular emphasis on the double bounce wireless relay network, and can be generalized to the multi-hop wireless junction network, even can be generalized to wireless Mesh netword and wireless sensor network.
Background technology
Traditional cell mobile communication systems adopts honeycomb, but the 4th generation (4G) wireless communication system with superelevation data rate still adopts traditional honeycomb can have a lot of problems, main cause is: the first, and the transmission rate of 4G system is wanted high two ranks than the third generation (3G) system.Under the situation of specified transmission power level, symbol (bit) energy can be linear along with the raising of transmission rate and descend, and therefore, this demand will produce serious power problems.The second, for the frequency spectrum of 4G system granting will be positioned at more than the employed 2GHz frequency range of 3G system undoubtedly.And but the radio propagation of these frequency ranges is under non-sighting distance condition usually, and effect is on duty mutually, but but not the typical mode of operation of the current just city cellular communication of sighting distance condition.
Overcome the above problems, must significantly increase the density of base station, this can cause the quite high cost of arranging net, and if number of users does not increase with same speed, this cover solution cost is too high, the economic benefit shortcoming.In addition, cover in order to realize the whole network, necessary a large amount of layout base station, this network design to real system also is a challenge.In addition, consider that 4G will for the channeling that makes the next generation wireless communication system reaches 1 as far as possible, improve the spectrum efficiency of system based on OFDM (OFDM) technology, adopt traditional honeycomb will face a lot of challenges.
How to reduce the interference of minizone, improve systematic function, be the focus of industry research always.Present wireless communication system generally adopts the repeater to come extended coverage range, and along with the development of wireless self-organization network theory, for the ease of convenient and swift networking, and the survivability of enhancing Radio Link etc., the centralized Control Network architecture with multi-hop characteristic has also put forward.The wireless relay technology will be occupied important function in the next generation wireless communication system.
The coverage that adopts relay station to come extended network is to come from the repeater development of legacy cellular mobile communication system.But relay station no longer is traditional repeater notion, but can regard the receiver of an enhancing as, and it not only has the function of the data of relaying being carried out power amplifier, can also improve the terminal received signal quality by adopting multi-antenna technology and coding etc.Specifically, relay station is the enhancing to the repeater, and traditional repeater generally just has the function of amplifying and transmitting to signal, and the function that relay station also has decoding and transmits.The amplification of repeater and forwarding (AF) function is meant that to the signal that receives operation such as do not decode directly carry out power amplification at radio-frequency head, in general, this operation is very simple, and equipment is very cheap.And the decoding of the advanced line number word of the decoding of relay station and forwarding (DF), the signal of recompile relaying before transmitting then, this process is sometimes referred to as " regenerative repeating " or " digital junction ".By DF, relay station can with the base station together, carry out RRM and traffic control, and can adopt advanced technology, for example coordinate conflict management and joint transmission.
From present relaying technique,, relay station can be divided into three kinds of main types: fixed relay station, temporary fixed relay station and mobile-relay station according to mobility or deployment concept.Fixed relay station can not move, be installed on a fixed position, main purpose be in obtaining the access point sub-district that fully covers, do not expand the coverage area, increase capacity or each user throughput, perhaps with the zone of coverage extension to the access point coverage.Removable relay station can be defined as, can move to the relay station of another location from a position according to the needs of coverage, be that relay station can be positioned at different positions, and change in time with various relayings and base station and communicate, but do not carry out handoff procedure.And the mobility of mobile-relay station and the user terminal population/target area " relevant " that will cover need to support complicated flow process (as switching), can be regarded as a kind of portable terminal of increased functionality.
From top introduction as can be known, relaying technique has the incomparable benefit of a lot of traditional group net modes, is one of key mechanism of future broadband wireless communication systems.For service transmission rate and the service quality that guarantees to transmit by relaying can satisfy the demands, generally need 2 of selections or a plurality of via node to work in coordination with relaying, so select suitable via node, and how to carry out distributing rationally of via node, be one of the difficult point of present industry and hot issue.
In addition, how to realize the resident of terminal use in the multi-hop wireless junction network, how concrete communication process and protocol infrastructure design, and go back clearly solution of neither one at present.In the resident process of user, how to allow network know this user's potential via node, be that wireless relay network user park operation process need thinks over.
Summary of the invention
The object of the present invention is to provide a kind of valid wireless multi-hop relay node selecting method, and describe relative communication process and design of protocol, provide concrete via node optimized choice algorithm.
The present invention mainly comprises the content of following several parts:
(1) the wireless multi-hop relay network node is resident;
(2) based on the trunk node selection of signal strength signal intensity (thick determine);
(3) based on the selection of the via node of multiple-objection optimization (thin determine);
(4) power configuration of via node and resource allocation.
A user terminal of just having started shooting wants resident to wireless multi-hop relay network, and concrete method may further comprise the steps:
The first step after terminal use's start, according to the wireless signal of the base station that searches or neighbours' via node, is selected the best node of signal strength signal intensity, and it is identified as friendly via node;
In second step, friendly via node sends to the base station to not resident information of terminal user to wireless access network as yet, manage concentratedly and control by the base station, and handle successfully resident information feed back to the terminal use by friendly via node; (annotate: if should close friend's via node be exactly base station itself, then resident Signalling exchange be directly carried out in terminal and base station)
In the 3rd step, after the terminal use has received successful admission confirm information from the base station, show that oneself success is resident to wireless network.
Treat that the success of user's terminal is resident after wireless multi-hop relay network, need adjudicate whether needing to carry out multi-hop communication by via node with product, select collaborative via node institute based on standard be the adjacent via node that receives of user terminal and the broadcast signal strength of base station transmission, by being sorted, the broadcast signal strength that surpasses certain threshold value that receives obtains alternative via node set, for follow-up judgement of multi-hop communication demand and the trunk node selection first time of carrying out, promptly the thick of via node determined.It should be noted that if the multi-hop communication court verdict be terminal directly and the base station communicate, the via node of selecting so below itself is exactly the base station, does not need to consider communicating by letter between via node and base station.Concrete steps are as follows:
The 4th step, user terminal is with the peripherad via node broadcast message of a certain constant transmit power, this information comprises: individual marking (ID) information and the relevant trunk node selection information of user terminal in wireless network, relevant trunk node selection information is to have comprised user property and related service characteristic etc., and they are broadcasted with the id information of user terminal.For the via node that can correctly receive from this user terminal information, to write down judgement according to the terminal broadcast message content that receives, if can satisfy the demand of user terminal, then this user terminal network sign is joined the neighbours' terminal recognition number tabulation (RN_UID_List) of oneself, otherwise will this user terminal broadcast message not done further processing;
The 5th step, the base station is according to finishing the resident user's registration information of network contains information from this user terminal identifier (UID) to the via node broadcast packet, if via node can correctly receive and identify out this UID information, to check that this UID is whether in the RN_UID_List of oneself, if this UID is present among the RN_UID_List of this via node, this via node returns confirmation to base station and terminal use respectively so, otherwise will the broadcast message that the base station sends not done further processing;
In the 6th step, the base station determines that according to the via node feedback information different terminals user's the potential via node of serving is gathered, and gathers stored list (BS_UID_RN_List) for each terminal use sets up a potential via node of serving.Terminal can be determined own neighbours' via node on every side according to the via node feedback information, and top-quality via node is updated to friendly via node;
Above step has been finished the function that via node is slightly determined, then will carry out the second time of via node and select, and based on the traffic performance that will transmit, the current wireless channel conditions adopts multiple target combined optimization strategy, carries out the thin of many via nodes and determines.It should be noted that for terminal,, then do not need to adopt the thin determining step of via node if the member has only base station oneself among its corresponding BS_UID_RN_List.Otherwise, carry out following steps:
The 7th step, when the base station when the terminal use initiates downlink traffic transmission, perhaps the terminal use by friendly via node when the uplink traffic transmission request is initiated in the base station, the base station will be dispatched the via node that is among the BS_UID_RN_List, arrange the multiple access access-in resource of via node and user terminal;
The 8th step, the multiple access resource that via node is arranged according to the base station, send training sequence to the terminal use, the terminal use is according to the signal quality of the training sequence of the corresponding via node that receives, in conjunction with the own service characteristic, select suitable via node, and send confirmation to via node, via node is transmitted to the base station after receiving affirmation information from the terminal use;
The 9th step, the affirmation information from via node is received in the base station, to carry out centralized dispatching again, determine the via node of final bearer service transmission, and carry out configuration of power and send opportunity etc., and configuration information sent to user terminal by friendly via node, guarantee collaborative the carrying out of data transmissions between many via nodes, thereby provide transfer of data efficiently for the terminal use.
So far, selected to finish and finish relevant configuration for collaborative via node professional between carrying base station and the terminal, terminal has obtained network carrying configuration information and has entered the latency services transmission state.
More than introduced the concrete execution in step of this method, its principle and optimized Algorithm are as follows:
In order to guarantee that new user can be resident to wireless multi-hop network, each new node all needs to seek a node in the network when access network also resident to wireless multi-hop network to help new node to insert as its friendly via node.Friendly via node is the open channel of being responsible for of new node, helps it to finish node ID and obtains, and a series of access procedures such as QoS of survice negotiation between the base station.Can accept concentrated scheduling in base station and energy transceive data when new node, friendly node is closed responsible channel, indicates that new user's success is resident to wireless network.Detailed process comprises:
1. search network, set up synchronously thick with network: after initialization or lossing signal, new node should be searched for the system broadcast message of each via node timed sending, and the signal strength signal intensity of the broadcast message that sends according to base station or via node carries out the selection that friendly via node or base station are directly inserted, and receives corresponding synchronous information according to selection result and obtain synchronously thick with network.By reading the system broadcast message that receives, node obtains network time from the timestamp zone of message.All store the last network information that inserts in each new node, new node carries out when network insertion, at first attempts synchronously thick with network according to the stored nearest network information and relevant operational parameter; If thick synchronization failure, then other channel that may exist on this new node search operation bandwidth is till finding an available network.When the physical layer of new node obtain with available network synchronously after, the MAC layer of new node will be attempted by the relevant network parameter of the information acquisition on the broadcast channel that reads network, and new node begins to set up the tabulation of physics adjoint point according to the broadcast message of the adjacent network node that can correctly receive simultaneously.
2. acquisition network parameter: the system broadcast message that new node receives make its can and network keep synchronous.The system message of these periodic broadcasts will regularly be collected and upgrade to new node, receive twice system broadcast message up to it from same node; New node selects the best via node of signal strength signal intensity as friendly node from the physics neighbor node table of storage, finish simultaneously with friendly node synchronously; New node sends the access request message of the friendly node ID that comprises it to its friendly node then.By the information relay of friendly node, new node can carry out network access authentication and consult basic capacity.More efficient more reliable in order to ensure the message between new node and the base station, new node should at first be asked the open channel of being responsible for of friendly node.
3. the open channel of being responsible for: after new node has been selected friendly node, the initialization procedure of network insertion will further be finished, new node is included as the correlated channels definition that realizes the new node information updating and channel allocation etc., so that can carry out the authentication etc. of basic capacity negotiation and new node with network.
4. new node need just can enter network through authentication.In authentication process, new node will send authentication information and ask authentication; The friendly via node of receiving authentication information and authentication request sends to the base station after with this message channelization, the base station will receive authentication request information that the friendly node of new node transmits and send into relevant authentication module with authentication information and handle, and authentication module will be verified new node and judges whether new node can join in the network according to the authentication information that receives.
5. after the new node authentication is passed through, new node will be realized network registry by friendly node, and registration is the process of distributing UE ID to new node.Friendly node is after receiving new registration request from user message, it is passed to the base station, the base station will receive registration information that the friendly node of new node transmits and send into relevant Registering modules and register, and the feedback acknowledgment information of Registering modules will send to new node to acknowledge message by friendly via node.
6. setting up network connects: node obtains the IP address by dynamic host allocation protocol (DHCP), and this process takes place on responsible channel, finishes the function relevant with IP network simultaneously.
After the network of having finished new node is resident, network will carry out the trunk node selection first time jointly with new user.New user/targeted customer (SS) is in order to realize and the communication for coordination of base station (BS), to carry out following 5 steps, and select collaborative RS, BS to broadcast with preliminary suitable collaborative via node (RS): the SS of determining by broadcasting and select collaborative RS, determine that collaborative RS realizes communication for coordination for multiple access interference, BS and the SS of BS and SS, BS scheduling RS and SS to feedback information.
1.SS to RS broadcasting cooperative information
When being, the channel conditions between RS and the SS becomes and the unknown, therefore SS is necessary periodically to broadcast the information of oneself, the information relevant with SS of storing among the RS can regularly be upgraded in time, simultaneously the broadcast message by via node around receiving with upgrade alternative relaying in conjunction with in RS information.SS can also broadcast certain business and user property outside the own id information of broadcasting, whether SS's may work in coordination with via node so that allow RS adjudicate oneself to belong to.
Except can be by the information of SS active broadcast oneself, allow RS select whether to can be used as outside the via node of this SS, can also be by allowing via node periodically with a certain power broadcasting via node information, define the terminal of collaborative transmission demand by mutual broadcast message and can be used to this terminal to work in coordination with the via node set of transmission by SS and RS, improve the signaling consumption of the selection speed and the system of saving of via node like this, thereby reached the purpose that improves the trunk node selection performance.Concrete operating procedure is: through terminal use's periodic broadcast, there is the terminal use who needs relay transmission in the terminal use's who closes on via node around can knowing it, so near the via node of user terminal that has the relay transmission demand in special time these is according to the communications status of own node, whether for this reason the decision terminal carries out communication for coordination.If can, then these RS can carry out the broadcast transmission (the technology decision that the multiple access transmission means between the RS is adopted by physical layer) of training sequence with a certain specific transmitting power in special time, target SS sorts according to the signal strength signal intensity size of the training sequence that the RS that receives sends, and requires to determine the potential individual RS of K (K 〉=1) that collaborative transmission service is provided according to certain signal strength threshold value.The terminal use may feed back to RS to this K that selects by RS more again, after RS receives these information, upgrades the neighbours' terminal recognition number tabulation (RN_UID_List) of oneself.
2.BS broadcast communication
BS communicates by broadcast mode and RS, and promptly BS broadcasts message to a plurality of collaborative work RS with constant power.It should be noted that the information that is broadcast to RS also can be closed on the SS of BS and be received, because these broadcast messages of BS are to arrange special downlink transfer time slot to send to RS's, SS does not need to carry out message pick-up in section during this period of time, disturbs and consume extra energy so can not produce.
3. determine collaborative RS
Because BS sends control information by broadcast mode, so do not exist signal to disturb between RS.Each RS determines the signal to noise ratio of own received signal, have only when signal to noise ratio during greater than certain threshold value, RS just can be correctly decoded its information and the successful confirmation of decoding related its can relaying targeted customer's information all feed back to the base station.
This moment, all individual RS of M (M 〉=1) that can be correctly decoded signal tentatively were defined as at the targeted customer and RS that can collaborative work, and the record and the timing renewal of the trunk information of be correlated with at BS place.
After via node can identify the broadcast message of BS, with the broadcast message that reads wherein.The trunk node selection information that can comprise relevant SS in the BS broadcast message, suppose concerning certain user (identifying) with UID, if via node can correctly receive this broadcast message and identify this UID information, to check that this UID is whether in the RN_UID_List of oneself, if this UID is present among the RN_UID_List of this via node, this via node returns confirmation to base station and terminal use respectively so, otherwise will the broadcast message that the base station sends not done further processing.
4.BS the multiple access of scheduling RS and SS disturbs
BS is according to the RS feedack, how selected RS communicate by letter with targeted customer (SS) carry out that reasonable resources is distributed and scheduling, to reduce the multiple access interference between RS and SS.
5.BS and the communication for coordination of SS
When SS and BS will communicate by a plurality of RS are collaborative, BS will carry out the scheduling of resource to support the professional transmission requirements of SS according to the service negotiation result who has carried out with SS.BS will adopt centralized control and scheduling mechanism, when improving the whole system spectrum efficiency, satisfy professional QoS as far as possible, reduce the energy consumption of whole system simultaneously.
Above communication mechanism has been arranged, and the key problem of collaborative via node comprises: if SS need insert BS by RS, how to select suitable collaborative via node, this is the key problem that collaborative via node is concerned about, elaborates below.
Multiple target combined optimization scheme is adopted in the selection of via node, unite the energy wastage in bulk or weight of considering whole communication link, the overall transmission rate of communication link, the service quality of transmission, the Radio Resource that consumes proposes the trunk node selection dispatching algorithm after the optimization.
The optimization aim of via node is
Concrete restrictive condition comprises:
Wherein L represents the number of the relaying that all are selected, E
iThe gross energy that the selected via node i of expression consumes, E
BSBe the energy consumption of base station, E
SSBe the energy consumption of SS, SNR
iBe meant the signal to noise ratio between via node i and the user terminal, T
iBe meant the propagation delay time of via node i and user terminal communication, Cmax is meant the maximum power consumption that allows, R
TargetBe meant the low transmission rate requirement, Δ T
MaxBe meant the overall delay minimum requirements.According to above Optimization Model as can be known, when selecting via node, need the suitable via node of selection, guarantee can obtain best spectrum efficiency this moment, but can not be greater than the total power consumption C of maximum permission
Max, overall transmission rate and overall delay require to satisfy professional qos requirement simultaneously.Above optimization aim is actually a multiple target combined optimization model, is non-linear (NP) problem, has provided a suboptimal solution example here, is about to all relayings
Carry out descending, promptly the order of preference of each via node according to
Select, the selected via node that participates in forwarding is up to just satisfying condition
Till.
The invention has the beneficial effects as follows: trunk node selection method of the present invention not only lays particular emphasis on the double bounce wireless relay network, and can be generalized to the multi-hop wireless junction network, even can be generalized to wireless Mesh netword and wireless sensor network.Because the user's selection resident and collaborative via node in the wireless relay network comes centralized control by the base station, therefore all be better than existing trunk node selection method at aspects such as scheduling of resource, power control and service quality (QoS) guarantees end to end.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 network basic structure schematic diagram
The resident wireless multi-hop network flow chart of Fig. 2 terminal
Fig. 3 terminal is carried out the resident signaling process figure of network through via node
Fig. 4 terminal is directly carried out the resident signaling process figure of network through the base station
Fig. 5 via node is roughly selected and is selected flow chart
Fig. 6 via node is roughly selected and is selected signaling process figure
Fig. 7 via node is carefully selected flow chart
Fig. 8 centralized control formula wireless cooperation trunk node selection flow chart
Embodiment
Fig. 1 is a network basic structure schematic diagram, targeted customer SS1 and SS2 are beyond base station overlay area among Fig. 1, be connected with the base station by via node, their served via node set is respectively RS1, RS2, RS3, RS4 and RS4, RS5, determine that according to signal strength signal intensity RS2 is the friendly via node of SS1, RS5 is the friendly via node of SS2.Because targeted customer SS3 and SS4 are in base station overlay area, it directly is connected with the base station.
Fig. 2 is the flow chart of the resident wireless multi-hop network of terminal, the broadcast singal of user terminal start back search base station and adjacent via node, and basis signal intensity is selected friendly via node, if should close friend's via node be the base station, then the base station is carried out authentication and is sent authentication result information according to access information after the access request that receives terminal, terminal judges whether successfully residing network according to the authentication result information that receives, and initiates or receive business if successful residing network is then waited for; If should close friend's via node not be the base station, then terminal sends to friendly via node and inserts solicited message, and friendly via node is transmitted the access request of terminal again to the base station, send authentication result information by the base station again, still will transmit through via node.If last terminal does not have successful residing network then needs again the broadcast singal of base station and adjacent via node to be searched for.
Fig. 3 is that terminal is carried out the resident signaling process figure of network through via node, and at first terminal sends to friendly via node and inserts solicited message; Secondly friendly via node is transmitted the access solicited message of terminal to the base station; Terminal authentication is carried out according to terminal access solicited message in the base station once more, and sends authentication result information to friendly via node, transmits authentication result information by friendly via node to terminal; It is resident that last terminal judges whether to finish network according to the authentication result information that receives, and then do not repeat above step if successfully insert.
Fig. 4 is that terminal is directly carried out the resident signaling process figure of network through the base station, and at first terminal sends to the base station and inserts solicited message; Secondly terminal authentication is carried out according to terminal access solicited message in the base station, and sends authentication result information to terminal; It is resident that last terminal judges whether to finish network according to the authentication result information that receives, and then do not repeat above step if successfully insert.
Fig. 5 is that via node is roughly selected and selected flow chart, terminal sorts according to the broadcast signal strength of relay station and the transmission of base station cycle, and adjudicate according to ranking results whether needs are by via node communication, if necessary, then terminal is with a certain firm power broadcast message, the broadcast message of via node receiving terminal also reads the broadcast message content, judge wherein whether contain this via node network identity, if then the terminal broadcast message is not done further processing, if there is via node that the network identity of this terminal is joined among neighbours' terminal recognition number tabulation RN_UID_List, via node sends confirmation to base station and user terminal, the base station is that user terminal is set up the potential relay collection tabulation BS_UID_RN_List that serves, via node that user terminal can be served around determining according to the via node feedback information and the renewal of finishing best friendly via node according to the feedback information of via node.For the resident but via node of base station broadcast tabulation sky or the via node tabulation UID information of excellent user terminal no longer, whether the UID information that the via node inspection receives is in RN_UID_List, if do not have then the base station broadcast information that receives not to be done further processing, if have then and send confirmation to base station and user terminal, the base station is that user terminal is set up the potential relay collection tabulation BS_UID_RN_List that serves, via node that user terminal can be served around determining according to the via node feedback information and the renewal of finishing best friendly via node according to the feedback information of via node.
Fig. 6 is that via node is roughly selected and selected signaling process figure, and at first user terminal is selected friendly via node and alternative relay collection, the trunk information in via node broadcast terminal information and alternative relay collection according to the broadcast signal strength ranking results that receives; Secondly the via node sign that comprises in the alternative relay collection of via node according to the terminal broadcasting that receives adds RN_UID_List with this terminal iidentification, and the base station is to via node broadcast terminal UID information; Receive base station broadcast terminal UID information owing to via node once more, and comprise this terminal UID among the relaying RN_UID_List, via node sends confirmation to user terminal and base station broadcast respectively; End user's terminal determines to serve relay collection according to the relaying feedback information that receives and friendly via node upgrades, and the base station is that terminal is set up BS_UID_RN_List according to the feedback information of the via node that receives.
Fig. 7 is that via node is carefully selected flow chart, downlink business is initiated to user terminal in the base station, user terminal is initiated the uplink service request by via node to the base station simultaneously, dispatch the via node that is among the BS_UID_RN_List base station, for the via node user terminal is arranged the multiple access access-in resource, via node arranges the multiple access resource to send training sequence information to the terminal use according to the base station, user terminal is selected suitable via node according to the signal quality of the via node that receives in conjunction with the own service characteristic, and send trunk node selection information to the base station by friendly via node, centralized dispatching is carried out after receiving the information of transmitting from friendly via node once more in the base station, determine the via node of service bearer, the line correlation of going forward side by side configuration sends configuration information by friendly via node to user terminal.
Fig. 8 is a centralized control formula wireless cooperation trunk node selection flow chart, mainly by the resident process of network, via node roughly select the process of selecting, the thin selection course three parts of via node are formed.Search network node broadcasts information behind the starting up of terminal in the resident process of network, sort according to signal strength signal intensity, judge whether to adopt relaying according to Search Results, if do not adopt relaying then directly and the base station communicate, then determine friendly via node if adopt, send access and resident solicited message by friendly relaying to the base station, operations such as authentication are carried out according to the solicited message that receives in the base station to terminal, and by relaying transmission authenticating result, terminal is according to whether resident success of the affirmation information judgement of feedback, then judge according to Search Results again if get nowhere, roughly select the process of selecting if success then changes via node over to.
Roughly select in the process of selecting at via node, base station and terminal be the transmission broadcast message in cycle respectively, and near via node will receive these broadcast messages respectively at different time, store according to the broadcast message content that reads.Have only the broadcast message of base station and terminal all to comprise same terminal information, operation below carrying out.
Adjudicate this Termination ID whether in the relaying tabulation of oneself, if not in the relaying tabulation then via node joins service list with this terminal, send confirmation to base station and terminal simultaneously, according to the affirmation information that receives from via node, the base station is that terminal is set up the tabulation of service relaying, terminal selects best node as friendly via node from serving the via node, finish friendly relaying and upgrade, and enter the thin selection course of via node.
In the thin selection course of via node, the base station initiates downlink business or terminal is initiated service request by friendly relaying, perhaps in communication process, roughly select the process of selecting owing to triggered via node, then trigger the thin selection course of via node, dispatch the via node in this terminal corresponding lists the base station, arrange the multiple access resource of via node and terminal, and these scheduling resource information are sent to terminal by via node, the information that terminal sends according to the via node that receives, select via node, and send relevant information (useful information that comprises each via node and user) to the base station by the friendly via node of selecting, the base station is according to the terminal feedack, dispatch once more, determine final via node, and finish the transmission configuration of each trunk channel, and send necessary channel configuration information to terminal by friendly via node, so far node is selected to finish.
Although the present invention is described and illustrates with reference to embodiment, and do not mean that the present invention is limited to the execution mode of these descriptions.Be noted that simultaneously technical scheme among the present invention is not specially at any specific wireless communication system.
Claims (8)
1. the resident and trunk node selection method of the user of a centralized control formula wireless relay network, wherein the selection of via node is divided into via node and roughly selects and select and via node is thin selects two steps, it is characterized in that:
● it is resident that user terminal is finished network by friendly via node;
● roughly select definite alternative set of via node in the process of selecting at via node;
● in the thin selection course of via node, determine the via node subclass of final bearer service.
2. the resident and trunk node selection method of the user of centralized control formula wireless relay network according to claim 1 is characterized in that:
The first step, after terminal use's start, will be according to the intensity of the wireless signal that comprises nodal information of the neighbor node fixed time broadcast that searches, carry out the selection of friendly via node, signal strength signal intensity is designated friendly via node above certain threshold value and the strongest via node of signal strength signal intensity, and according to satisfying the transmitting power transmission access request that this via node can receive and correctly demodulate user terminal information; If should close friend's via node be base station itself, then forward for the 3rd step to, otherwise forwarded for second step to;
Second step, friendly via node is transmitted to the base station to the not resident access solicited message that receives to the terminal use of wireless access network as yet, the terminal use that transmit according to friendly via node the base station inserts solicited message and carries out operations such as authentication, and whether user terminal is included in the centralized management and the control of base station according to operating results such as authentication decisions, to the friendly via node transmit operation object information of user terminal, friendly node feeds back to the terminal use with the operation result information that receives simultaneously;
The 3rd step, if user terminal by operations such as authentications, then user terminal can be received the successful admission confirm information from the base station, shows that user terminal success is resident to wireless network; Otherwise failure, terminal will repeat above three steps.
3. the resident and trunk node selection method of the user of centralized control formula wireless relay network according to claim 2 is characterized in that:
Terminal is carried out the resident signaling process of network through via node, and at first terminal sends to friendly via node and inserts solicited message; Secondly friendly via node is transmitted the access solicited message of terminal to the base station; Terminal authentication is carried out according to terminal access solicited message in the base station once more, and sends authentication result information to friendly via node, transmits authenticating result by friendly via node to terminal; It is resident that last terminal judges whether to finish network according to the authentication result information that receives, and then do not repeat above step if successfully insert.
4. user's staying method of centralized control formula wireless relay network according to claim 2 carries out trunk node selection, it is characterized in that:
When user terminal success resident behind wireless relay network, the user will periodically broadcast the information of oneself, so that the via node around allowing knows user's existence and user's configuration information, user terminal is finished the renewal of friendly via node by the broadcast message that receives adjacent via node simultaneously, thereby keeps resident wireless network by friendly via node or base station;
User terminal sorts according to the broadcast signal strength of relay station and the transmission of base station cycle, and adjudicate according to ranking results whether needs are by via node communication, communicate by via node if desired, then continue to carry out the remaining step in this method, promptly via node is roughly selected the process of selecting:
The 4th step, user terminal is with the peripherad via node broadcast message of a certain constant transmit power, for the via node that can correctly receive from this user terminal information, to write down judgement according to the terminal broadcast message content that receives, if can satisfy the demand of user terminal, then this user terminal network sign is joined the neighbours' terminal recognition number tabulation of oneself, otherwise will this user terminal broadcast message not done further processing;
The 5th step, the base station is according to finishing the resident user's registration information of network contains information from this user terminal identifier to the via node broadcast packet, if via node can correctly receive and identify out this information, to check that this information is whether in own neighbours' terminal recognition number is tabulated, if this information is present in neighbours' terminal recognition number tabulation of this via node, this via node returns confirmation to base station and terminal use respectively so, otherwise will the broadcast message that the base station sends not done further processing;
The 6th step, the base station is according to the via node feedback information, that determines the different terminals user potentially serves the via node set, and for each terminal use sets up a potential via node set stored list of serving, terminal is according to the via node feedback information, can determine own neighbours' via node on every side, and the highest via node of broadcast signal strength is updated to friendly via node.
5. the trunk node selection method of centralized control formula wireless relay network according to claim 4 is characterized in that:
The information of the peripherad via node of user terminal broadcasting comprises, user terminal in wireless network individual marking information and comprised user property and the relevant trunk node selection information of related service characteristic etc.
6. the trunk node selection method of centralized control formula wireless relay network according to claim 4 is characterized in that:
Via node is roughly selected the signaling process of selecting, and at first user terminal is selected friendly via node and alternative relay collection, the trunk information in via node broadcast terminal information and alternative relay collection according to the broadcast signal strength ranking results that receives; Secondly the via node sign that comprises in the alternative relay collection of via node according to the terminal broadcasting that receives adds number tabulation of neighbours' terminal recognition with this terminal iidentification, and the base station is to via node broadcast terminal user terminal identifier information; Once more because via node receives base station broadcast end user terminal identifier information, and comprise this terminal recognition number in the relaying neighbours terminal recognition number tabulation, via node sends confirmation to user terminal and base station broadcast respectively; End user's terminal determines to serve relay collection according to the relaying feedback information that receives and friendly via node upgrades, and the base station is that terminal is set up the set stored list according to the feedback information of the via node that receives.
7. the trunk node selection method of centralized control formula wireless relay network according to claim 4 is characterized in that:
After finishing via node and slightly determining, then to carry out the second time of via node and select, based on the traffic performance that will transmit, the current wireless channel conditions, adopt multiple target combined optimization strategy, carry out the thin selection of many via nodes, for terminal, if the member has only base station oneself in the set stored list of its correspondence, then do not need to adopt the thin determining step of via node, otherwise, continue to carry out the remaining step in this method, i.e. the thin selection course of via node:
The 7th step, when the base station when the terminal use initiates downlink traffic transmission, perhaps the terminal use by friendly via node when the uplink traffic transmission request is initiated in the base station, the base station will be dispatched the via node that is in the set stored list, arrange the multiple access access-in resource of via node and user terminal;
The 8th step, the multiple access resource that via node is arranged according to the base station, send training sequence to the terminal use, the terminal use is according to the signal quality of the training sequence of the corresponding via node that receives, in conjunction with the own service characteristic, select suitable via node, and send confirmation to via node, via node is transmitted to the base station after receiving affirmation information from the terminal use;
The 9th step, the affirmation information from via node is received in the base station, to carry out centralized dispatching again, determine the via node of final bearer service transmission, and carry out configuration of power and send opportunity etc., and configuration information sent to user terminal by friendly via node, guarantee collaborative the carrying out of data transmissions between many via nodes, thereby provide transfer of data efficiently for the terminal use;
So far, node is selected to finish.
8. according to the resident and trunk node selection method of the user of the described centralized control formula of arbitrary claim wireless relay network in the claim 1 to 7, it is characterized in that:
It is as follows to carry out the thin optimized Algorithm of selecting of via node:
The optimization aim of via node is
Concrete restrictive condition comprises:
Wherein L represents the number of the relaying that all are selected, E
iThe gross energy that the selected via node i of expression consumes, E
BSBe the energy consumption of base station, E
SSBe the energy consumption of SS, SNR
iBe meant the signal to noise ratio between via node i and the user terminal, T
iBe meant the propagation delay time of via node i and user terminal communication, C
MacBe meant the maximum power consumption that allows, R
TargetBe meant the low transmission rate requirement, Δ T
MaxBe meant the overall delay minimum requirements,
When selecting via node, need the suitable via node of selection, guarantee can obtain best spectrum efficiency this moment, but can not be greater than the total power consumption C of maximum permission
Max, overall transmission rate and overall delay require to satisfy professional quality of service requirement simultaneously.
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| WO2019154074A1 (en) * | 2018-02-09 | 2019-08-15 | 电信科学技术研究院有限公司 | Relay node selection method and device |
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| CN111385855B (en) * | 2018-12-27 | 2022-07-05 | 上海新微技术研发中心有限公司 | Routing node selection method, routing node selection system, control device, and storage medium |
| CN111385823A (en) * | 2018-12-29 | 2020-07-07 | 中兴通讯股份有限公司 | Signal processing method and device |
| CN109743677A (en) * | 2019-01-16 | 2019-05-10 | 深圳职业技术学院 | A kind of multi-level data transmission method in the narrowband Internet of Things based on heterogeneous network |
| CN110868459A (en) * | 2019-11-01 | 2020-03-06 | 腾讯科技（深圳）有限公司 | Data transmission method, device, terminal and storage medium |
| CN110856232A (en) * | 2019-11-12 | 2020-02-28 | 全球能源互联网研究院有限公司 | Relay selection and frequency distribution method and device for electric power wireless private network |
| CN110831006A (en) * | 2019-11-29 | 2020-02-21 | 北京展讯高科通信技术有限公司 | Ad hoc network system and data transmission method thereof |
| CN111404792A (en) * | 2020-03-10 | 2020-07-10 | 珠海格力电器股份有限公司 | Data transmission method and device |
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| CN114630380A (en) * | 2020-12-10 | 2022-06-14 | 丰田自动车株式会社 | Method, communication system, information processing system, and computer-readable storage medium |
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| US12082104B2 (en) | 2020-12-10 | 2024-09-03 | Toyota Jidosha Kabushiki Kaisha | Method, communication system, information processing system, and computer readable medium |
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