CN102014498B - Transmission method based on two-hop relay station wireless communication - Google Patents
Transmission method based on two-hop relay station wireless communication Download PDFInfo
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Abstract
The present invention relates to a two-jump relay station wireless communication method, which comprises the initialization of channel quality threshold values, the distribution of resource blocks, the distribution of link data, the adjustment of buffer memory and threshold values, the processing of residual resource blocks, the determination of relay users transmission rate, the distribution of second-hop resource blocks, the integrated distribution of first hop resource blocks and the second hop resource blocks, the determination of the direct-connected users transmission rate, the determination of that whether the second jump resource blocks have been distributed completely, the processing of the direct-connected users whose rate are lower than the minimum rate. The present method comprises: setting a channel threshold values during the first hop; distributing the resource blocks to the backhaul link under good channel conditions; configuring the upper limit of buffer memory for every relay user, and respectively configuring the minimum rate for the relay users and direct-connected users to safeguard the fairness; improving the transmission efficiency by 30% and user fairness by 50% respectively; having the characteristics of sufficient resource utilization of system backhaul link, high powerful real-timing for relay users communication, fair communication between direct-connected users and relay users and high transmission efficiency of system.
Description
Technical field
The invention belongs to broadband wireless communication technique, particularly a kind of transmission method for the double bounce relay station wireless communication.
Background technology
To mobile communication, the demand for development of WLAN (wireless local area network) and broadband wireless network realizes that wide area covers continuously, supports the transmission of higher rate at present.These demands are that wide prospect has been opened up in the application of relaying technique, by relaying technique, can improve cell edge area and hot zones user's communication quality, have enlarged the residential quarter area coverage, have increased simultaneously the availability of frequency spectrum of system.Yet because the adding of via node (station), traditional residential quarter multi-user transmission and resource allocation policy are no longer suitable, design the key issue that novel allotment (transmission) method will become research.In addition, modern WLAN (wireless local area network) and broadband wireless network multi-access mode often adopt orthogonal frequency division multiplexing multiple access (Orthogonal Frequency DivisionMultiplexing Access, OFDMA) technology, under multi-access mode, the resource of multiple access is distributed is to occur with time and frequency two-dimensional way, therefore the resource of multiple access is distributed and the method for expressing more complex, especially during broader bandwidth, the flexibility that resource is distributed be should consider, the simplicity of method for expressing and the problems such as high efficiency of expense thereof considered again.The distribution method of traditional cellular OFDM system commonly used is to distribute take Resource Block (Resource Block, RB) as unit at present.And common based on resource block allocation method such as the fair method of direct ratio, the basic thought of the method is based on priority: the user of channel condition better (carrier/interface ratio is higher), and priority is higher; The user of existing high throughput, priority is lower.This priority list is shown carrier/interface ratio/throughput, and then system carries out transfer of data with resource block assignments to the high user of priority.Utilize the method, even some subscriber channel condition is poor, will descend but can not get for a long time serving rear throughput, its priority is risen, thereby obtain the chance of the transmission of data, satisfy the fairness of concocting method.
In WLAN (wireless local area network) and broadband wireless network, relay-model commonly used is the double bounce relaying, and namely user and base station communication are at most only through a relay station transfer.Under this model, communication link between base station and the relay station is called back haul link, communication link between relay station and the user is called access link, and those do not need in the relay station then directly and the user of base station communication and the link between the base station be called direct connected link.Correspondingly, need the user of relay station transfer to be called trunk subscriber, and do not need the user of relay station transfer to be called direct-connected user.In addition, communicating by letter between direct-connected user, relay station and the base station is called first jumps, and communicating by letter between trunk subscriber and relay station is called second and jumps.And in two-hop relaying, trunk subscriber need to through double bounce could and base station communication, and relay station and direct-connected user can be directly and base station communication, so its allotment (transmission) method is than in traditional ofdm system complexity.At " A two-hop proportional fairnessscheduling algorithm for relay based OFDMA systems. (based on the double bounce fair scheduling algorithm of OFDMA system) " (L.Xiao, L.Cuthbert, WiCOM ' 08, pp.1-4,2008.) although document in to disclose a kind of suppose relay user be through double bounce, but it is identical with direct-connected user to take the allotment time slot, be to ignore the relay station used time of forwarding, on this basis, directly direct ratio fair algorithm (processing method) is applied to direct-connected user and trunk subscriber, this hypothesis does not obviously meet actual conditions because of it, and is difficult to be promoted application actual.There is in addition interactional relation between base station and the relay station, this is mainly reflected in the not equity of relay station between the channel condition of back haul link and access link, caused two link selection modulating-coding patterns (Modulation and Coding Scheme, MCS) difference, if the capacity of back haul link is greater than the capacity of access link, then relay station needs certain buffer memory, in order to repeatedly transmit at access link, but this will strengthen the time-delay of trunk subscriber; Otherwise when the capacity of back haul link during less than the capacity of access link, then there is a large amount of wastes in access link bandwidth; For fear of producing unnecessary interference between trunk subscriber and the direct-connected user, common method is that trunk subscriber is used different spectrum space with direct-connected user, at " Further Advancements for E-UTRA Physical Layer Aspects. (further developing of E-UTRA physical layer) " (R1-093680,3GPP TR 36.814, v1.3.0, August 2009.) disclosed these class methods that namely belong in the document, the method is by making trunk subscriber and direct-connected user adopt respectively different spectrum space to transmit, to avoid it to influence each other, although this method can reduce the complexity of allotment (transmission) method, but but bring the waste of Radio Resource in the system, also can cause simultaneously the complete unfairness between trunk subscriber and the direct-connected user.
Summary of the invention
The object of the present invention is to provide a kind of transmission method based on the double bounce relay station wireless communication, in order to can and strengthen on the basis of real-time of trunk subscriber communication in the resource that takes full advantage of back haul link, better satisfy the fairness of direct-connected user and trunk subscriber, its efficiency of transmission of Effective Raise is beneficial to the purposes such as development of double bounce relay wireless local area network (LAN) and broadband wireless network.
Solution of the present invention is in first jumps the channel threshold values to be set, and with resource block assignments to channel condition back haul link preferably, to reduce the transmission delay of trunk subscriber; In relay station, each trunk subscriber is arranged the upper limit of buffer memory, jump taking full advantage of of Resource Block to guarantee second, also further reduce the transmission delay of trunk subscriber simultaneously; Simultaneously trunk subscriber and direct-connected user are set respectively the minimum-rate requirement, to ensure trunk subscriber and direct-connected user's fairness and business demand; Thereby realize its purpose.Therefore, the inventive method comprises:
Step 1. Initial Channel Assignment quality threshold: the grade of Initial Channel Assignment quality threshold modulating-coding pattern (MCS) in the initialization system;
The distribution of step 2. Resource Block: relatively first all Resource Block of jumping are in channel quality and the threshold values size of back haul link, be used for transfer of data for the back haul link greater than threshold values resource block assignments, remaining Resource Block is distributed to direct-connected user according to the concocting method of routine with it;
The adjustment of the distribution of step 3. link data, buffer memory and threshold values: from configuration give the data of taking out last storage in the corresponding trunk subscriber buffer and the data that transmit with back haul link according to the concocting method of routine with all data allocations to this trunk subscriber; To the data that can not satisfy a Resource Block bearing capacity or after satisfying the Resource Block bearing capacity, remaining data process as the remaining data amount, if the remaining data amount is prescribed a time limit less than the upper of this trunk subscriber capacity register, then deposit in the buffer of this trunk subscriber, execution in step 4 then, otherwise threshold values is increased a MCS grade, re-executes step 2;
The processing of step 4. surplus resources piece: judge whether the overall transmission rate of distributing to each trunk subscriber and each direct-connected user is the minimum-rate requirement of setting, when relaying user and direct-connected user are minimum-rate, then the second surplus resources piece of jumping is distributed to direct-connected user according to the concocting method of routine; Otherwise, only distribute to trunk subscriber or direct-connected user that transmission rate is minimum-rate; When only trunk subscriber is minimum-rate, execution in step 5, and direct-connected user when being minimum-rate, execution in step 8;
The judgement of step 5. trunk subscriber transmission rate: judge after obtaining step 4 distributes resource blocks, whether the speed of trunk subscriber still be minimum-rate, if, execution in step 6 then, otherwise execution in step 7;
Step 6. is for the second allocation process of jumping Resource Block: judge that second jumps Resource Block and whether be assigned with, if distribute, then with MCS grade of threshold values standard increase, re-execute step 2; Otherwise, jump remaining all Resource Block to second and distribute to direct-connected user according to the concocting method of routine; Then judge whether the direct-connected user after obtaining distributing still is minimum-rate, if, then assigning process finishes, otherwise threshold values is increased a MCS grade, re-executes step 2;
Step 7. is jumped the comprehensive allocation process of Resource Block to first, second: when relaying user's transmission rate is lower than minimum-rate, judge that at first second jumps Resource Block and whether be assigned with, if distribute, then assigning process finish; Otherwise, jump that the surplus resources piece is distributed to trunk subscriber according to the concocting method of routine to second until trunk subscriber reaches that minimum-rate requires to end or the Resource Block of all access link has been assigned with ends, and add up total amount of data and the remaining Resource Block amount that all trunk subscribers occupy, and remaining Resource Block is distributed to direct-connected user according to the concocting method of routine; Then in first jumps according to channel quality from get well to going bad successively selection resource block assignments wherein to back haul link, make it satisfy the required total amount of data of all trunk subscribers, jump remaining all Resource Block with first again and distribute to direct-connected user according to the concocting method of routine, until first all Resource Block of jumping have been assigned with;
The judgement of the direct-connected user's transmission rate of step 8.: after judge obtaining step 4 distributes resource blocks, whether direct-connected user's speed still be minimum-rate, if, execution in step 9 then, otherwise, execution in step 10;
Whether step 9. second is jumped Resource Block and is assigned: judge that second jumps Resource Block and whether be assigned with, if be assigned with, then allocation process end; Otherwise, threshold values is reduced a MCS grade, re-executes step 2;
Step 10: to being lower than the direct-connected user's of minimum-rate processing: when direct-connected user is lower than the minimum-rate requirement, judge that whether the second jumping Resource Block has been assigned with, if be assigned with, reduce threshold values a MCS grade, re-executes step 2; Otherwise the second surplus resources piece of jumping is distributed to this direct-connected user according to the concocting method of routine, whether the speed of then judging the direct-connected user after obtaining distributing meets the requirements of minimum-rate, if, then assigning process finishes, otherwise threshold values is reduced a MCS grade, re-executes step 2.
The grade of Initial Channel Assignment quality threshold modulating-coding pattern (MCS) in the described initialization system is when the MCS channel quality level is that ten grades when processed, Initial Channel Assignment quality threshold grade then are made as the 4-6 level.Conventional concocting method described in the above steps is the fair subscription of direct ratio or polling method.Described user cache device refers to be in the relay station each user configured buffer, be used for this user of storage because of the information that do not reach a complete Resource Block so that after the data message that next round and back haul link transmit together forms complete Resource Block, give trunk subscriber again, perhaps store the remaining data that can not distribute at access link trunk subscriber of this user; Configuration does not all have data in the buffer during to each user's buffer, initial condition.Described trunk subscriber and direct-connected user's minimum-rate refers to the minimum transmission rate of each user's request, the set basis communication environments of this minimum transmission rate and deciding.
The present invention because: one. in first jumps, the channel threshold values is set, and with resource block assignments to channel condition back haul link preferably, to reduce the transmission delay of trunk subscriber; They are two years old. and in relay station, each trunk subscriber is arranged the upper limit of buffer memory, jump taking full advantage of of Resource Block to guarantee second, also reduce the transmission delay of trunk subscriber simultaneously; They are three years old. trunk subscriber and direct-connected user are set respectively the minimum-rate requirement, to ensure trunk subscriber and direct-connected user's fairness and business demand; The inventive method efficiency of transmission (throughput) can improve about 30% than background technology, is improving about 50% simultaneously aspect the fairness of direct-connected user and trunk subscriber.Thereby the inventive method has that the resource that can make double bounce relay station communication system back haul link is fully used, trunk subscriber communication real-time, satisfied better the fairness that direct-connected user communicates by letter with trunk subscriber, Effective Raise the efficiency of transmission of system, be conducive to the characteristics such as development of double bounce relay wireless local area network (LAN) and broadband wireless network.
Description of drawings
Fig. 1 is indication double bounce relay station wireless communication system link schematic diagram of the present invention;
Fig. 2 is the inventive method schematic flow sheet (block diagram).
Embodiment
Embodiment 1: present embodiment to be comprising 1 relay station under the base station, 10 direct-connected users, and the network of 10 trunk subscribers is example.The transmission method of communication is:
Step 1. Initial Channel Assignment quality threshold: the grade of initial channel quality threshold values modulating-coding pattern (MCS) in the initialization system is ten grades of systems in this MCS channel quality level, and initial channel quality threshold values grade then is made as 5 grades;
The distribution of step 2. Resource Block: relatively first all Resource Block of jumping are in channel quality and the threshold values size of back haul link, to the threshold values of the channel back haul link greater than 5 grades, remaining Resource Block is given direct-connected user according to the fair concocting method of direct ratio with data allocations with resource block assignments;
The adjustment of the distribution of step 3. link data, buffer memory and threshold values: from configuration give the data of taking out last storage in the corresponding trunk subscriber buffer and the data that transmit with back haul link according to the fair allotment of direct ratio with all data allocations to this trunk subscriber; Process as the remaining data amount satisfying behind the Resource Block bearing capacity remaining data, present embodiment remaining data amount is less than the higher limit of this trunk subscriber buffer memory capacity, so deposit in the buffer, execution in step 4 then;
The processing of step 4. surplus resources piece: only have trunk subscriber to be minimum-rate, therefore the second surplus resources piece of jumping to be distributed to direct-connected user according to the fair concocting method of direct ratio in the implementation case, then execution in step 5;
The judgement of step 5. trunk subscriber transmission rate: in the present embodiment, after obtaining the Resource Block that step 4 distributes, the speed of this trunk subscriber is less than minimum-rate, so execution in step 7;
Step 7. is jumped the comprehensive allocation process of Resource Block to first, second: when the transmission rate of trunk subscriber is lower than minimum-rate at this moment, and second jumps Resource Block does not distribute, therefore jump the surplus resources piece to second and distribute to trunk subscriber until trunk subscriber reaches the minimum-rate requirement according to the concocting method of routine, this fashion has the surplus resources piece, add up the total amount of data that all trunk subscribers occupy after, remaining Resource Block is distributed to direct-connected user according to the fair concocting method of direct ratio; Then in first jumps according to channel quality from get well to going bad successively selection resource block assignments wherein to back haul link, make it satisfy the required total amount of data of all trunk subscribers, then jump remaining all Resource Block to first and distribute to direct-connected user according to the fair concocting method of direct ratio, until first all Resource Block of jumping have been assigned with;
Present embodiment is compared with traditional double bounce equity dispatching method based on the OFDMA system, and efficiency of transmission (throughput) can improve about 30% than background technology, is improving about 50% aspect the fairness of direct-connected user and trunk subscriber.
Case study on implementation 2: moving with embodiment 1 identical network.The transmission method of its communication is:
Step 1: Initial Channel Assignment quality threshold: initial channel quality threshold values grade still is made as 5 grades;
Step 2: the distribution of Resource Block: relatively first all Resource Block of jumping are in channel quality and the threshold values size of back haul link, to the threshold values of the channel back haul link greater than 5 grades, remaining Resource Block is given direct-connected user according to the fair concocting method of direct ratio with data allocations with resource block assignments;
Step 3: the adjustment of the distribution of link data, buffer memory and threshold values: from configuration give the data of taking out last storage in the corresponding trunk subscriber buffer and the data that transmit with back haul link according to the fair allotment of direct ratio with all data allocations to this trunk subscriber; The data of present embodiment storage add bearing capacity that data that back haul link transmits can not satisfy a Resource Block therefore all data process as the remaining data amount, and the remaining data amount is during less than the higher limit of this trunk subscriber capacity register, thus after depositing in the buffer of this trunk subscriber, execution in step 4;
Step 4: the processing of surplus resources piece: direct-connected user is minimum-rate, therefore the second surplus resources piece of jumping is distributed to this direct-connected user according to the fair concocting method of direct ratio in the present embodiment, and then execution in step 8;
Step 8: the judgement of direct-connected user's transmission rate: above-mentioned direct-connected user after obtaining the Resource Block that step 4 distributes, this direct-connected user's speed still is lower than minimum-rate, so execution in step 10;
Step 10. pair is lower than the direct-connected user's of minimum-rate processing: this moment trunk subscriber transmission rate when being lower than minimum-rate, and second jumps Resource Block does not distribute, then the second surplus resources piece of jumping is distributed to this direct-connected user according to the fair concocting method of direct ratio, this moment, direct-connected user's speed met the requirements of minimum-rate, and then assigning process finishes.
Present embodiment is compared with traditional double bounce equity dispatching method based on the OFDMA system, and efficiency of transmission (throughput) still improves about 30% than background technology, is also improving about 50% aspect the fairness of direct-connected user and trunk subscriber.
Claims (5)
1. transmission method based on the double bounce relay station wireless communication comprises:
Step 1. Initial Channel Assignment quality threshold: the grade of Initial Channel Assignment quality threshold modulating-coding pattern in the initialization system;
The distribution of step 2. Resource Block: relatively first all Resource Block of jumping are in channel quality and the threshold values size of back haul link, be used for transfer of data for the back haul link greater than threshold values resource block assignments, remaining Resource Block is distributed to direct-connected user according to the concocting method of routine with it;
The adjustment of the distribution of step 3. link data, buffer memory and threshold values: from configuration give the data of taking out last storage in the corresponding trunk subscriber buffer and the data that transmit with back haul link according to the concocting method of routine with all data allocations to this trunk subscriber; To the data that can not satisfy a Resource Block bearing capacity or after satisfying the Resource Block bearing capacity, remaining data process as the remaining data amount, if the remaining data amount is prescribed a time limit less than the upper of this trunk subscriber capacity register, then deposit in the buffer of this trunk subscriber, execution in step 4 then, otherwise threshold values is increased a MCS grade, re-executes step 2;
The processing of step 4. surplus resources piece: judge whether the overall transmission rate of distributing to each trunk subscriber and each direct-connected user is the minimum-rate requirement of setting, when relaying user and direct-connected user are minimum-rate, then the second surplus resources piece of jumping is distributed to direct-connected user according to the concocting method of routine; Otherwise, only distribute to trunk subscriber or direct-connected user that transmission rate is minimum-rate; When only trunk subscriber is minimum-rate, execution in step 5, and direct-connected user when being minimum-rate, execution in step 8;
The judgement of step 5. trunk subscriber transmission rate: judge after obtaining step 4 distributes resource blocks, whether the speed of trunk subscriber still be minimum-rate, if, execution in step 6 then, otherwise execution in step 7;
Step 6. is for the second allocation process of jumping Resource Block: judge that second jumps Resource Block and whether be assigned with, if distribute, then with MCS grade of threshold values standard increase, re-execute step 2; Otherwise, jump remaining all Resource Block to second and distribute to direct-connected user according to the concocting method of routine; Then judge whether the direct-connected user after obtaining distributing still is minimum-rate, if, then assigning process finishes, otherwise threshold values is increased a MCS grade, re-executes step 2;
Step 7. is jumped the comprehensive allocation process of Resource Block to first, second: when relaying user's transmission rate is lower than minimum-rate, judge that at first second jumps Resource Block and whether be assigned with, if distribute, then assigning process finish; Otherwise, jump that the surplus resources piece is distributed to trunk subscriber according to the concocting method of routine to second until trunk subscriber reaches that minimum-rate requires to end or the Resource Block of all access link has been assigned with ends, and add up total amount of data and the remaining Resource Block amount that all trunk subscribers occupy, and remaining Resource Block is distributed to direct-connected user according to the concocting method of routine; Then in first jumps according to channel quality from get well to going bad successively selection resource block assignments wherein to back haul link, make it satisfy the required total amount of data of all trunk subscribers, jump remaining all Resource Block with first again and distribute to direct-connected user according to the concocting method of routine, until first all Resource Block of jumping have been assigned with;
The judgement of the direct-connected user's transmission rate of step 8.: after judge obtaining step 4 distributes resource blocks, whether direct-connected user's speed still be minimum-rate, if, execution in step 9 then, otherwise, execution in step 10;
Step 9. judges that second jumps Resource Block and whether assign: judge that second jumps Resource Block and whether be assigned with, if be assigned with, then allocation process end; Otherwise, threshold values is reduced a MCS grade, re-executes step 2;
Step 10: to being lower than the direct-connected user's of minimum-rate processing: when direct-connected user is lower than the minimum-rate requirement, judge that whether the second jumping Resource Block has been assigned with, if be assigned with, reduce threshold values a MCS grade, re-executes step 2; Otherwise the second surplus resources piece of jumping is distributed to this direct-connected user according to the concocting method of routine, whether the speed of then judging the direct-connected user after obtaining distributing meets the requirements of minimum-rate, if, then assigning process finishes, otherwise threshold values is reduced a MCS grade, re-executes step 2.
2. by the described transmission method based on the double bounce relay station wireless communication of claim 1, the grade that it is characterized in that Initial Channel Assignment quality threshold modulating-coding pattern in the described initialization system is when the channel quality level of MCS is that ten grades when processed, Initial Channel Assignment quality threshold grade then are made as the 4-6 level.
3. by the described transmission method based on the double bounce relay station wireless communication of claim 1, it is characterized in that at the conventional concocting method described in the claims 1 each step be the fair subscription of direct ratio or polling method.
4. by the described transmission method based on the double bounce relay station wireless communication of claim 1, it is characterized in that described user cache device refers to be in the relay station each user configured buffer, be used for this user of storage because of the information that do not reach a complete Resource Block so that after the data message that next round and back haul link transmit together forms complete Resource Block, give trunk subscriber again, perhaps store the remaining data that can not distribute at access link trunk subscriber of this user; Configuration does not all have data in the buffer during to each user's buffer, initial condition.
5. by the described transmission method based on the double bounce relay station wireless communication of claim 1, the minimum-rate that it is characterized in that described trunk subscriber and direct-connected user refers to the minimum transmission rate of each user's request, the set basis communication environments of this minimum transmission rate and deciding.
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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CN101471756A (en) * | 2007-12-27 | 2009-07-01 | 上海无线通信研究中心 | Centralization type scheduling HARQ method for multi-hop relay downward system |
WO2010005839A1 (en) * | 2008-07-11 | 2010-01-14 | Qualcomm Incorporated | Flash position signaling: multiplexing and interference management |
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WO2010005839A1 (en) * | 2008-07-11 | 2010-01-14 | Qualcomm Incorporated | Flash position signaling: multiplexing and interference management |
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