CN102118856A - Relay network system and downlink resource allocation method thereof - Google Patents

Relay network system and downlink resource allocation method thereof Download PDF

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CN102118856A
CN102118856A CN2009102158748A CN200910215874A CN102118856A CN 102118856 A CN102118856 A CN 102118856A CN 2009102158748 A CN2009102158748 A CN 2009102158748A CN 200910215874 A CN200910215874 A CN 200910215874A CN 102118856 A CN102118856 A CN 102118856A
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resource
terminal
base station
group
quantized value
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CN102118856B (en
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盛敏
姚君
梁枫
毕峰
袁明
杨瑾
吴栓栓
赵楠
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ZTE Corp
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ZTE Corp
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Priority to CN200910215874.8A priority Critical patent/CN102118856B/en
Priority to PCT/CN2010/079652 priority patent/WO2011079703A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user

Abstract

The invention discloses a relay network system and a downlink resource allocation method thereof. The method comprises the following steps that: a base station calculates a priority of a terminal on an allocable resource according to a channel condition quantized value of the terminal requesting a service on the allocable resource in a submission stage and an average acquired resource quantized value of the terminal; the base station allocates the allocable resource in the submission stage to the terminal having the channel condition quantized value of not less than a pre-set first threshold value and having the highest priority obtained by calculation; and the base station allocates the allocable resource in a transmission stage after the allocable resource in the submission stage is allocated. In the relay network system and the downlink resource allocation method thereof provided by the invention, radio resource allocation among three links, namely a direct link, a backhaul link and an access link in a relay network is designed reasonably, so that the throughput of a cell can be improved, and spectrum efficiency is increased.

Description

Junction network system and descending resource allocation method thereof
Technical field
The present invention relates to the communications field, in particular to a kind of junction network system and descending resource allocation method thereof.
Background technology
Relaying technique has caused attention more and more widely as a kind of emerging technology, is regarded as the key technology of B3G/4G.By relaying technique, traditional one hop link can be divided into a plurality of multi-hop links, because distance shortens, this will greatly reduce path loss, help to improve transmission quality, enlarge communication range, thereby provide quicker better service for the user.
In junction network, user and the link between relay station that relay station participates in service are called as access link (Access Link), link between relay station and base station is called as back haul link (Backhaul Link), and user and the link between the base station that the base station participates in service are called as the link that direct transfers (Direct Link).As shown in Figure 1.
For relay station in the band, back haul link, access link and the link that direct transfers all are operated on the identical frequency band.Generally speaking, relay station is in the transmission that receives from the base station in being with, if relay station is also being launched to the user in the band, then can make to produce between the transmitting terminal of relay station self and receiving terminal in the band and disturb, can cause the severe exacerbation of communication quality like this.The descending reception with relay station at present usually separates on time domain with emission process, generates two stages: delivery phase with submit the stage, solve this problem, as shown in Figure 2.In delivery phase, downlink is carried out by the back haul link and the link that direct transfers respectively to relay station and user in the base station, and relay station only carries out descending reception and do not carry out downlink at back haul link, and the user receives on the link that direct transfers; In the stage of submitting, downlink is carried out by the chain road direction user that direct transfers in the base station, and relay station only carries out downlink and do not carry out descending reception to the user on access link, and the user carries out descending reception on the access link and the link that direct transfers.
Allocation of radio resources is a characteristic of data service system, and purpose is the time-varying characteristics that make full use of channel, obtains multi-user diversity gain, improves the throughput of system.According to the wireless resource allocation methods characteristics, existing method mainly can be divided into: poll; Maximum C/I; The direct ratio justice.The reference index commonly used of weighing the performance of resource allocation methods mainly comprises: fairness, time delay border and algorithm are carried out complexity between throughput, user.At LTE (Long TermEvolution, Long Term Evolution)/LTE-A (Long Term Evolution Advance, advanced long-term evolution system) in the system, the smallest allocation unit of Radio Resource is that Physical Resource Block is to (PRB Pair), the unified in this article RB that is called, the set of being made up of a plurality of RB is called the RB group.
For junction network, it is 2 jumpings that traditional one hop link structure is expanded, the link that direct transfers, back haul link and access link have been comprised, and the existing resources distribution method is not made special design at wireless resource allocation between these three links and coordination, and only based on user's allocation criteria, can cause resource to can not get sufficient utilization, limit the performance of junction network greatly.
Summary of the invention
Main purpose of the present invention is to provide a kind of junction network system and descending resource allocation method thereof, to address the above problem at least.
According to an aspect of the present invention, the descending resource allocation method of a kind of junction network system is provided, comprise: the base station according to the terminal of request service on the allowable resource in the stage of submitting the channel conditions quantized value and terminal on average obtained resource quantized value, the priority of computing terminal on allowable resource; The allowable resource that the stage will be submitted in the base station is distributed to the channel conditions quantized value and is not less than first threshold value that sets in advance and the highest terminal of priority that calculates; After the allowable resource of submitting the stage assigns, the allowable resource of base station assigns delivery phase.
Preferably, the base station according to the terminal of request service on the allowable resource in the stage of submitting the channel conditions quantized value and terminal on average obtained the resource quantized value, computing terminal comprises in the priority on the allowable resource: the base station is being submitted in the allowable resource in stage and is being specified a Resource Block RB to be allocated or RB group; The base station is according to average obtained resource quantized value computing terminal the priority to be allocated RB or RB group on of the terminal of asking service in channel conditions quantized value on RB to be allocated or the RB group and terminal.
Preferably, the base station allowable resource that will submit the stage distributes to that the channel conditions quantized value is not less than first threshold value that sets in advance and the highest terminal of priority that calculates comprises: the base station be not less than first threshold value RB to be allocated or RB set of dispense for channel conditions quantized value in the terminal of request service and calculate the highest terminal of priority; The resource allocation result of RB or RB group is preserved in the base station, wherein, allocation result comprise RB or RB group, obtain RB or RB group terminal iidentification, obtain that network node that the terminal of RB or RB group accepts to serve identifies and network node in each relay station throughput that can provide; The base station judges according to the resource allocation result of preserving whether all RB or the RB group submitted in the assignable resource of stage all assign; If all do not assign, then the base station is assigned with the channel conditions quantized value of terminal on RB or RB group of the interference update request service of introducing the back according to RB or RB group; The base station once more RB or RB set of dispense are given the channel conditions quantized value that upgrades in the terminal of request service greater than first threshold value and with the channel conditions quantized value that upgrades calculate the highest terminal of priority, until RB or RB group are deleted from assignable resource; The base station continues to distribute the RB next to be allocated or the RB that submit in the stage allowable resource of appointment to organize until all assignable RB or RB set of dispense are finished.
Preferably, after the allowable resource of submitting the stage assigns, the allowable resource of base station assigns delivery phase comprises: the base station according to the terminal of request service and relay station on the allowable resource of delivery phase the channel conditions quantized value and terminal and relay station on average obtained resource quantized value, computing terminal and the relay station priority on the allowable resource of delivery phase; The highest terminal or the relay station of priority that the channel conditions quantized value is not less than second threshold value that sets in advance and calculates distributed to the allowable resource of delivery phase in the base station.
Preferably, the base station according to the terminal of request service and relay station on the allowable resource of delivery phase the channel conditions quantized value and terminal and relay station on average obtained the resource quantized value, computing terminal and relay station comprise in the priority on the allowable resource of delivery phase: the base station specifies a RB to be allocated or RB to organize in the allowable resource of delivery phase; The base station has on average been obtained resource quantized value computing terminal and the priority of relay station on RB to be allocated or RB group according to the terminal of request service and relay station at the channel conditions quantized value on RB to be allocated or the RB group and terminal and relay station.
Preferably, the allowable resource of delivery phase is distributed to that the channel conditions quantized value is not less than second threshold value that sets in advance and the highest terminal or the relay station of priority that calculate comprises in the base station: the base station be not less than second threshold value for channel conditions quantized value in the terminal of request service and the relay station RB to be allocated or RB set of dispense and calculate the highest terminal or the relay station of priority; The resource allocation result of RB or RB group is preserved in the base station, and wherein, allocation result comprises RB or RB group, obtains terminal or the relay station sign and the obtainable throughput of each relay station of RB or RB group; Delete RB or RB group the base station from assignable resource; The base station judges according to the resource allocation result of preserving whether all RB or RB group in the assignable resource of delivery phase all assign; If still have assignable RB or RB group, then RB next to be allocated in the delivery phase allowable resource of base station continuation distribution appointment or RB group are until all assignable RB or RB set of dispense are finished.
Preferably, after the allowable resource in the stage of submitting assigns, also comprise after the allowable resource of base station assigns delivery phase: the base station is to the Resources allocation of delivery phase and submit the Resources allocation in stage and coordinate.
Preferably, the base station is to the Resources allocation of delivery phase with submit the Resources allocation in stage and coordinate to comprise: can obtain throughput in the relay station that the base station will ask to serve and the relay station that can provide throughput and both differences to reach the 3rd threshold value that sets in advance is provided is kept in the set; The base station discharge can obtain in the relay station of request service throughput be higher than can provide throughput and both differences to reach the 4th threshold value that sets in advance relay station in the part resource that delivery phase obtained, be no more than the 3rd threshold value or the 4th threshold value until difference; If the quantity of the resource that is discharged is not 0, then the resource that is discharged is redistributed in the base station.
Preferably, if the quantity of the resource that is discharged is not 0, then the base station is redistributed the resource that is discharged and is comprised: if the quantity of the relay station in the set be 0 and the quantity of the resource that discharged be not 0, then the base station specifies a RB to be allocated or RB to organize in the resource that is discharged; The base station is according to average obtained resource quantized value computing terminal the priority RB or RB group on of the terminal of asking service in channel conditions quantized value on RB or the RB group and terminal; The base station be not less than first threshold value RB or RB set of dispense for channel conditions quantized value in the terminal of request service and calculate the highest terminal of priority; The resource allocation result of RB or RB group is preserved in the base station, and wherein, resource allocation result comprises RB or RB group and obtains RB or the terminal iidentification of RB group; Delete RB or RB group the base station from the allowable resource of the resource that discharged; If do not had allowable resource in the resource that is discharged, then the quantity of the relay station of resource coordination in set is carried out and the quantity of the resource that discharged is 0 once more in the base station.
Preferably, if the quantity of the resource that is discharged is not 0, then the base station is redistributed the resource that is discharged and is also comprised: if the quantity of the relay station in the set be not 0 and the quantity of the resource that discharged be not 0, then the base station specifies a RB to be allocated or RB to organize in the resource that is discharged; The base station is calculated the priority of relay station on RB or RB group according to the relay station in the set at the average resource quantized value that obtained of channel conditions quantized value on RB or the RB group and relay station; The base station be not less than second threshold value RB or RB set of dispense for channel conditions quantized value in the relay station of set and calculate the highest relay station of priority; The resource allocation result of RB or RB group is preserved in the base station; If do not had allowable resource in the resource that is discharged, then the quantity of the relay station of resource coordination in set is carried out and the quantity of the resource that discharged is 0 once more in the base station.
Preferably, the base station is to the Resources allocation of delivery phase and submit the Resources allocation in stage and coordinate also to comprise: if the quantity of the relay station in the set be not 0 and the quantity of the resource that discharged be 0, then the base station obtains from delivery phase according to the resource allocation result of preserving to choose terminal according to obtaining resource quantity by the few order of as many as in the terminal of resource; The base station discharges the part resource that selected terminal obtains in delivery phase; A RB to be allocated or RB group are specified in the base station in the resource that is discharged; The base station is calculated the priority of relay station on RB or RB group according to the relay station in the set at the average resource quantized value that obtained of channel conditions quantized value on RB or the RB group and relay station; The base station be not less than second threshold value RB or RB set of dispense for channel conditions quantized value in the relay station of set and calculate the highest relay station of priority; The resource allocation result of RB or RB group is preserved in the base station; If do not had allowable resource in the resource that is discharged, then the quantity of the relay station of resource coordination in set is carried out and the quantity of the resource that discharged is 0 once more in the base station.
Preferably, if terminal only provides service by the base station, then the channel conditions quantized value of terminal comprises one of following at least: the base station is to Signal to Interference plus Noise Ratio SINR, signal-to-jamming ratio SIR, channel quality indicator (CQI) and the order indication RI of link of terminal; If terminal only provides service by a certain relay station, then the channel conditions quantized value of terminal comprises one of following at least: relay station is to SINR, SIR, CQI and the RI of link of terminal; If terminal simultaneously provides service by base station and/or one or more relay station, then the channel conditions quantized value of terminal comprises one of following at least: SINR, SIR, CQI and the RI of base station to link of terminal and/or one or more relay station to the merging equivalent periodic line of link of terminal; Terminal average obtained the resource quantized value and comprised that the quantity of acquired RB of terminal or RB group or throughput that terminal has reached or the successful data packets for transmission quantity of terminal are at arithmetic mean or the weighted average of Terminal Service on the stand-by period.
Preferably, the channel conditions quantized value of relay station comprises one of following at least: the base station is to SINR, SIR, CQI and the RI of the link of relay station; Relay station average obtained the average arithmetic mean of resource quantized value sum based on the number of terminals of being served that obtained of the resource quantized value comprises that the relay station stage of submitting serves in this sub-distribution terminal.
Preferably, the mode of the resource of base station release relay station or terminal is: the channel conditions quantized value order from high to low on acquired RB or RB group discharges according to relay station or terminal.
Preferably, terminal or the relay station priority on allowable resource is:
Figure G2009102158748D00071
Wherein, SINR I, kBe the channel conditions quantized value of i terminal or relay station, T iBe i terminal or relay station on average obtained the resource quantized value, α, β and γ are regulatory factors.
According to a further aspect in the invention, provide a kind of junction network system, having comprised: base station, terminal and relay station; Wherein,
The base station, be used for terminal according to request service on the allowable resource in the stage of submitting the channel conditions quantized value and terminal on average obtained resource quantized value, the priority of computing terminal on allowable resource; Be used for that also the allowable resource in the stage of submitting is distributed to the channel conditions quantized value and be not less than first threshold value that sets in advance and the highest terminal of priority that calculates; Also be used for after the allowable resource in the stage of submitting assigns, distribute the allowable resource of delivery phase.
Preferably, the base station comprises:
The priority computing module is used for specifying a Resource Block RB to be allocated or RB group and on average having obtained the priority of resource quantized value computing terminal on RB to be allocated or RB group according to the terminal of request service in channel conditions quantized value on RB to be allocated or the RB group and terminal at the allowable resource in the stage of submitting; Also be used for if the judged result of judge module is not for all assigning, then be assigned with the channel conditions quantized value of terminal on RB or RB group of the interference update request service of introducing the back according to RB or RB group and once more RB or RB set of dispense are given the channel conditions quantized value that upgrades in the terminal of request service greater than first threshold value and with the channel conditions quantized value that upgrades calculate the highest terminal of priority, delete from assignable resource until RB or RB are organized;
Resource distribution module, be used for being not less than first threshold value for the terminal channel conditions quantized value of request service RB to be allocated or the RB set of dispense and calculate the highest terminal of priority;
Preserve module, be used to preserve the resource allocation result of RB or RB group;
Judge module is used for judging according to the resource allocation result of preserving whether all RB or the RB group of submitting assignable resource of stage all assign.
Preferably, the priority computing module also is used for specifying a RB to be allocated or RB group and on average having obtained resource quantized value computing terminal and the priority of relay station on RB to be allocated or RB group according to the terminal of request service and relay station at the channel conditions quantized value on RB to be allocated or the RB group and terminal and relay station at the allowable resource of delivery phase;
Resource distribution module also be used for being not less than second threshold value for the terminal of request service and relay station channel conditions quantized value the RB to be allocated of delivery phase or the RB set of dispense and calculate the highest terminal of priority or relay station and RB or RB group deleted from assignable resource, until all assignable RB or RB set of dispense are finished;
Judge module also is used for judging according to the resource allocation result of preserving whether all RB of the assignable resource of delivery phase or RB group all assign.
Preferably, the base station also is used for the Resources allocation of delivery phase and submits the Resources allocation in stage and coordinate.
By the present invention, owing to, solved the problem that does not design as yet in the correlation technique at the wireless resource allocation between these three links of the link that direct transfers, back haul link and access link in the junction network by successively stage of submitting and delivery phase being carried out the distribution of downlink resource.This embodiment has taken into full account the characteristics of junction network, successively two stages of descending reception in the junction network and emission process are carried out the distribution of downlink resource, thereby carried out rational design at the allocation of radio resources between these three links of the link that direct transfers, back haul link and access link in the junction network, can improve cell throughout, increase spectrum efficiency.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation according to the junction network of correlation technique;
Fig. 2 is the schematic diagram according to two stages of the junction network work of correlation technique;
Fig. 3 is the flow chart according to the descending resource allocation method of the junction network system of the embodiment of the invention;
Fig. 4 is the flow chart that distributes the allowable resource in the stage of submitting in the descending resource allocation method of junction network in accordance with a preferred embodiment of the present invention;
Fig. 5 is the flow chart that distributes the allowable resource of delivery phase in the descending resource allocation method of junction network in accordance with a preferred embodiment of the present invention;
Fig. 6 is the flow chart of resource coordination in the descending resource allocation method of junction network in accordance with a preferred embodiment of the present invention;
Fig. 7 is the schematic diagram according to the junction network system of the embodiment of the invention.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Fig. 3 is according to the flow chart of the descending resource allocation method of the junction network system of the embodiment of the invention, may further comprise the steps:
Step S102, the base station according to the terminal of request service on the allowable resource in the stage of submitting the channel conditions quantized value and terminal on average obtained resource quantized value, the priority of computing terminal on allowable resource;
Step S104, the allowable resource that the stage will be submitted in the base station is distributed to the channel conditions quantized value and is not less than first threshold value that sets in advance and the highest terminal of priority that calculates;
Step S106, after the allowable resource of submitting the stage assigns, the allowable resource of base station assigns delivery phase.
This embodiment is owing to by successively stage of submitting and delivery phase being carried out the distribution of downlink resource, solved the problem that does not design at the wireless resource allocation between these three links of the link that direct transfers, back haul link and access link in the junction network as yet in the correlation technique.This embodiment has taken into full account the characteristics of junction network, successively two stages of descending reception in the junction network and emission process are carried out the distribution of downlink resource, thereby carried out rational design at the allocation of radio resources between these three links of the link that direct transfers, back haul link and access link in the junction network, can improve cell throughout, increase spectrum efficiency.
Preferably, step S102 comprises: a Resource Block RB to be allocated or RB group are specified in the base station in the allowable resource in the stage of submitting; The base station is according to average obtained resource quantized value computing terminal the priority to be allocated RB or RB group on of the terminal of asking service in channel conditions quantized value on RB to be allocated or the RB group and terminal.
Step S104 comprises: the base station be not less than first threshold value RB to be allocated or RB set of dispense for channel conditions quantized value in the terminal of request service and calculate the highest terminal of priority; The resource allocation result of RB or RB group is preserved in the base station, wherein, allocation result comprise RB or RB group, obtain RB or RB group terminal iidentification, obtain that network node that the terminal of RB or RB group accepts to serve identifies and network node in each relay station throughput that can provide; The base station judges according to the resource allocation result of preserving whether all RB or the RB group submitted in the assignable resource of stage all assign; If all do not assign, then the base station is assigned with the channel conditions quantized value of terminal on RB or RB group of the interference update request service of introducing the back according to RB or RB group; The base station once more RB or RB set of dispense are given the channel conditions quantized value that upgrades in the terminal of request service greater than first threshold value and with the channel conditions quantized value that upgrades calculate the highest terminal of priority, until RB or RB group are deleted from assignable resource; The base station continues to distribute the RB next to be allocated or the RB that submit in the stage allowable resource of appointment to organize until all assignable RB or RB set of dispense are finished.
The preferred embodiment provides base station assigns to submit the specific embodiments of the allowable resource in stage.The preferred embodiment adopts the allocation criteria based on Radio Resource itself, specify a resource to be allocated, from the terminal of request service, select qualified terminal, should resource allocation to be allocated give this terminal, solved the correlation technique employing and only caused resource to be not fully utilized, limited the problem of the performance of junction network based on user's allocation criteria.Use this embodiment can make full use of resource, improved the performance of junction network.
Preferably, step S106 comprises: the base station according to the terminal of request service and relay station on the allowable resource of delivery phase the channel conditions quantized value and terminal and relay station on average obtained resource quantized value, computing terminal and the relay station priority on the allowable resource of delivery phase; The highest terminal or the relay station of priority that the channel conditions quantized value is not less than second threshold value that sets in advance and calculates distributed to the allowable resource of delivery phase in the base station.
Wherein, the base station according to the terminal of request service and relay station on the allowable resource of delivery phase the channel conditions quantized value and terminal and relay station on average obtained the resource quantized value, computing terminal and relay station comprise in the priority on the allowable resource of delivery phase: the base station specifies a RB to be allocated or RB to organize in the allowable resource of delivery phase; The base station has on average been obtained resource quantized value computing terminal and the priority of relay station on RB to be allocated or RB group according to the terminal of request service and relay station at the channel conditions quantized value on RB to be allocated or the RB group and terminal and relay station.
The allowable resource of delivery phase is distributed to that the channel conditions quantized value is not less than second threshold value that sets in advance and the highest terminal or the relay station of priority that calculate comprises in the base station: the base station be not less than second threshold value for channel conditions quantized value in the terminal of request service and the relay station RB to be allocated or RB set of dispense and calculate the highest terminal or the relay station of priority; The resource allocation result of RB or RB group is preserved in the base station, and wherein, allocation result comprises RB or RB group, obtains terminal or the relay station sign and the obtainable throughput of each relay station of RB or RB group; Delete RB or RB group the base station from assignable resource; The base station judges according to the resource allocation result of preserving whether all RB or RB group in the assignable resource of delivery phase all assign; If still have assignable RB or RB group, then RB next to be allocated in the delivery phase allowable resource of base station continuation distribution appointment or RB group are until all assignable RB or RB set of dispense are finished.
The preferred embodiment provides the specific embodiments of the allowable resource of base station assigns delivery phase.Equally, the preferred embodiment adopts the allocation criteria based on Radio Resource itself, specify a resource to be allocated, from the terminal of request service, select qualified terminal, should resource allocation to be allocated give this terminal, solved the correlation technique employing and only caused resource to be not fully utilized, limited the problem of the performance of junction network based on user's allocation criteria.Use this embodiment can make full use of resource, improved the performance of junction network.
Preferably, also comprise after step S106: the base station is to the Resources allocation of delivery phase and submit the Resources allocation in stage and coordinate.
Wherein, the base station is to the Resources allocation of delivery phase with submit the Resources allocation in stage and coordinate to comprise: can obtain throughput in the relay station that the base station will ask to serve and the relay station that can provide throughput and both differences to reach the 3rd threshold value that sets in advance is provided is kept in the set; The base station discharge can obtain in the relay station of request service throughput be higher than can provide throughput and both differences to reach the 4th threshold value that sets in advance relay station in the part resource that delivery phase obtained, be no more than the 3rd threshold value or the 4th threshold value until both difference; If the quantity of the resource that is discharged is not 0, then the resource that is discharged is redistributed in the base station.
If the quantity of the resource that discharged is not 0, then the base station is redistributed the resource that is discharged and is comprised: if the quantity of the relay station in the set be 0 and the quantity of the resource that discharged be not 0, then the base station specifies a RB to be allocated or RB to organize in the resource that is discharged; The base station is according to average obtained resource quantized value computing terminal the priority RB or RB group on of the terminal of asking service in channel conditions quantized value on RB or the RB group and terminal; The base station be not less than first threshold value RB or RB set of dispense for channel conditions quantized value in the terminal of request service and calculate the highest terminal of priority; The resource allocation result of RB or RB group is preserved in the base station, and wherein, resource allocation result comprises RB or RB group and obtains RB or the terminal iidentification of RB group; Delete RB or RB group the base station from the allowable resource of the resource that discharged; If do not had allowable resource in the resource that is discharged, then the quantity of the relay station of resource coordination in set is carried out and the quantity of the resource that discharged is 0 once more in the base station.
A kind of specific embodiments that the preferred embodiment provides the base station that Resources allocation is further coordinated.The base station is after the resource of resource that distributes the stage of submitting and delivery phase in the preferred embodiment, and the relay station of serving in request all can normally provide under the prerequisite of service, gives terminal with the unnecessary resource allocation that the relay station in the delivery phase obtains.
Preferably, if the quantity of the resource that is discharged is not 0, then the base station is redistributed the resource that is discharged and is also comprised: if the quantity of the relay station in the set be not 0 and the quantity of the resource that discharged be not 0, then the base station specifies a RB to be allocated or RB to organize in the resource that is discharged; The base station is calculated the priority of relay station on RB or RB group according to the relay station in the set at the average resource quantized value that obtained of channel conditions quantized value on RB or the RB group and relay station; The base station be not less than second threshold value RB or RB set of dispense for channel conditions quantized value in the relay station of set and calculate the highest relay station of priority; The resource allocation result of RB or RB group is preserved in the base station; If do not had allowable resource in the resource that is discharged, then the quantity of the relay station of resource coordination in set is carried out and the quantity of the resource that discharged is 0 once more in the base station.
Another specific embodiments that the preferred embodiment provides the base station that Resources allocation is further coordinated.The base station is after the resource of resource that distributes the stage of submitting and delivery phase in the preferred embodiment, and unnecessary resource allocation that will a part of relay station obtains in delivery phase obtains the less relay station of resource to another part.
Preferably, the base station is to the Resources allocation of delivery phase and submit the Resources allocation in stage and coordinate also to comprise: if the quantity of the relay station in the set be not 0 and the quantity of the resource that discharged be 0, then the base station obtains from delivery phase according to the resource allocation result of preserving to choose terminal according to obtaining resource quantity by the few order of as many as in the terminal of resource; The base station discharges the part resource that selected terminal obtains in delivery phase; A RB to be allocated or RB group are specified in the base station in the resource that is discharged; The base station is calculated the priority of relay station on RB or RB group according to the relay station in the set at the average resource quantized value that obtained of channel conditions quantized value on RB or the RB group and relay station; The base station be not less than second threshold value RB or RB set of dispense for channel conditions quantized value in the relay station of set and calculate the highest relay station of priority; The resource allocation result of RB or RB group is preserved in the base station; If do not had allowable resource in the resource that is discharged, then the quantity of the relay station of resource coordination in set is carried out and the quantity of the resource that discharged is 0 once more in the base station.
Another specific embodiments that the preferred embodiment provides the base station that Resources allocation is further coordinated.The base station is after the resource of resource that distributes the stage of submitting and delivery phase in the preferred embodiment, when the resource that relay station obtained of part request service is less than that resource requirement acquires a certain degree and other relay stations when not having unnecessary resource, the resource that will obtain a part of terminal of resource in delivery phase discharges, and gives the less relay station of above-mentioned acquisition resource with the resource allocation that discharges.
Above preferred embodiment is further coordinated institute's assigned radio resource, can improve cell throughout, increases spectrum efficiency, guarantees the fairness between the user, improves QoS.
In above-mentioned method, if terminal only provides service by the base station, then the channel conditions quantized value of terminal comprises one of following at least: RI (Rank Indicator) is indicated to Signal to Interference plus Noise Ratio SINR (Signal to Interference plus Noise Ratio), signal-to-jamming ratio SIR (Signal to Interference Ratio), channel quality indicator (CQI) (Channel QualityIndicator) and the order of link of terminal in the base station;
If terminal only provides service by a certain relay station, then the channel conditions quantized value of terminal comprises one of following at least: relay station is to SINR, SIR, CQI and the RI of link of terminal;
If terminal simultaneously provides service by base station and/or one or more relay station, then the channel conditions quantized value of terminal comprises one of following at least: SINR, SIR, CQI and the RI of base station to link of terminal and/or one or more relay station to the merging equivalent periodic line of link of terminal;
Terminal average obtained the resource quantized value and comprised that the quantity of acquired RB of terminal or RB group or throughput that terminal has reached or the successful data packets for transmission quantity of terminal are at arithmetic mean or the weighted average of Terminal Service on the stand-by period.
It is one of following that the channel conditions quantized value of relay station comprises at least: the base station is to SINR, SIR, CQI and the RI of the link of relay station;
Relay station average obtained the average arithmetic mean of resource quantized value sum based on the number of terminals of being served that obtained of the resource quantized value comprises that the relay station stage of submitting serves in this sub-distribution terminal.
It is one of following that the base station specifies the mode of a RB to be allocated or RB group to comprise in resource: the order according to frequency direction is specified successively; Specify at random.
The mode that the base station discharges the resource of relay station or terminal is: the channel conditions quantized value order from high to low on acquired RB or RB group discharges according to relay station or terminal.
Terminal or the relay station priority on allowable resource is:
Wherein, SINR I, kBe the channel conditions quantized value of i terminal or relay station, T iBe i terminal or relay station on average obtained the resource quantized value, α, β and γ are regulatory factors.
Fig. 4 is the flow chart that distributes the allowable resource in the stage of submitting in the descending resource allocation method of junction network in accordance with a preferred embodiment of the present invention, may further comprise the steps:
Step S402, a RB to be allocated or RB group are specified in the base station in assignable Radio Resource of the stage of submitting;
Step S404, the base station is according to user's's (being terminal) of request service the channel conditions quantized value on described RB to be allocated or RB group, the user on average obtained in the information such as resource quantized value partly or entirely, obtain the priority of user on RB to be allocated or RB group of described request service;
Step S406, the base station gives described RB or RB set of dispense wherein that the channel conditions quantized value is not less than a basic thresholding THb2 (i.e. first threshold value) and a highest user of priority;
Step S408, preserve resource allocation result, comprise the RB or the RB group of having distributed among the step S406 and obtain described RB or the user ID of RB group, and the network node that the user accepted the to serve sign that obtains described RB or RB group comprises that Base Station Identification or relay station identify, and each relay station throughput that can provide;
Step S410 checks the resource allocation result of preserving among the step S408, if all submit assignable RB of stage or the RB group all is assigned with, then skips to the step S502 in the resource allocation flow process of delivery phase as shown in Figure 5, otherwise, change step S412 over to;
Step S412, the interference value that will introduce in the transmission that is distributed according to the RB or the RB group of this sub-distribution upgrades user's channel conditions quantized value, and is back to step S402.
Fig. 5 is the flow chart that distributes the allowable resource of delivery phase in the descending resource allocation method of junction network in accordance with a preferred embodiment of the present invention, may further comprise the steps:
Step S502, a RB to be allocated or RB group are specified in the base station in the assignable Radio Resource of delivery phase;
Step S504, according to the user of request service and the channel conditions quantized value of relay station, user and relay station on average obtained in the information such as resource quantized value partly or entirely, obtain the priority of described user on RB to be allocated or RB group;
Step S506, giving described RB or RB set of dispense wherein, the channel conditions quantized value is not less than basic thresholding THb1 (i.e. second threshold value) and a highest user or the relay station of priority;
Step S508 preserves resource allocation result, and comprise the RB or the RB group of having distributed among the step S506 and obtain described RB or the user of RB group or relay station sign, and the obtainable throughput of each relay station;
Step S510 deletes the RB or the RB group of being distributed from assignable Radio Resource;
Step S512 checks the resource allocation result of preserving among the step S508, if there has not been assignable RB of delivery phase or RB group, then skips to the step S602 of resource coordination flow process as shown in Figure 6, otherwise, be back to step S502.
Fig. 6 is that the flow chart step of resource coordination comprises in the descending resource allocation method of junction network in accordance with a preferred embodiment of the present invention:
Step S602, investigate the relay station of each request service successively, if described relay station can obtain throughput and is lower than the throughput that this relay station can provide, and low degree reaches a certain thresholding TH1 (i.e. the 3rd threshold value), then preserves this relay station and is identified in the S set; If described relay station can obtain throughput and be higher than the throughput that this relay station can provide, and the degree that exceeds reaches a certain thresholding TH2 (i.e. the 4th threshold value), then discharge its in part RB that delivery phase obtained or RB group as assignable Radio Resource, be no more than TH1 or TH2 up to its difference that can obtain the throughput that throughput and this relay station can provide; Otherwise relay station institute Resources allocation remains unchanged;
Step S604 judges whether that the S set of being preserved is not empty for Radio Resource empty and that discharged, if then skip to step S606; If not, then change step S610 over to;
Step S606, specify a RB to be allocated or RB group in the Radio Resource that the base station is discharged in step S602, and according to the user's of request service channel conditions quantized value and on average obtained in the information such as resource quantized value partly or entirely, obtain described user on RB to be allocated or RB group priority and give described RB or RB set of dispense wherein that the channel conditions quantized value is not less than a basic thresholding THb2 and a highest user of priority, preserve resource allocation result, comprise the RB or the RB group of having distributed and obtain described RB or the user ID of RB group, and the RB or the RB group of being distributed are deleted from assignable Radio Resource;
Step S608 checks the resource allocation result of preserving among the step S606, if there has not been assignable RB of delivery phase or RB group, then skips to step 602, otherwise, skip to step 606;
Step S610 judges whether that the S set of being preserved is not that Radio Resource empty and that discharged is empty, if, then skip to step S612, if not, then change step S616 over to;
Step S612, result according to the resource allocation of preserving, according in this sub-distribution delivery phase obtain Radio Resource quantity from how to few order selected part or whole users, and described user is carried out part in the acquired RB of delivery phase or RB group discharge, and in the Radio Resource that is discharged, specify a RB to be allocated or RB to organize, and according to the channel conditions quantized value of the relay station among the S and on average obtained in the information such as resource quantized value partly or entirely, obtain described relay station on RB to be allocated or RB group priority and described RB or RB set of dispense be not less than a basic thresholding THb1 and a highest relay station of priority to channel conditions quantized value wherein; Preserve resource allocation result, comprise the RB or the RB group of having distributed and obtain described RB or the relay station sign of RB group, and the RB or the RB group of being distributed are deleted from assignable Radio Resource;
Step S614 checks the resource allocation result of preserving among the step S612, if there has not been assignable RB of delivery phase or RB group, then skips to step S602, otherwise, skip to step S612;
Step S616, judge whether the S set of being preserved for the empty and Radio Resource that discharged also for empty, if, process ends then; If not, then change step S6618 over to;
Step S618, a RB to be allocated or RB group are specified in the base station in the Radio Resource that is discharged, and according to the channel conditions quantized value of the relay station that is identified in the S set and on average obtained in the information such as resource quantized value partly or entirely, obtain described relay station on RB to be allocated or RB group priority and described RB or RB set of dispense be not less than a basic thresholding THb1 and a highest relay station of priority to channel conditions quantized value wherein; Preserve resource allocation result, comprise the RB or the RB group of having distributed and obtain described RB or the relay station sign of RB group, and the RB or the RB group of being distributed are deleted from assignable Radio Resource;
Step S620 checks the resource allocation result of preserving among the step S618, if there has not been assignable RB of delivery phase or RB group, then skips to step S602, otherwise, skip to step S618.
In the above preferred embodiment, if the user only provides service by the base station, then described user's channel conditions quantized value comprises that the base station arrives the SINR of user link, SIR, CQI, RI, or its quantized value is all or part of; If the user only provides service by certain relay station, then described user's channel conditions quantized value comprises that relay station arrives the SINR of user link, SIR, CQI, RI, or its quantized value is all or part of; If the user provides service by base station and/or one or more relay station simultaneously, then described user's channel conditions quantized value comprises that the base station arrives user and/or one or more relay station SINR, SIR, CQI, the RI to the merging equivalent periodic line of user link, or its quantized value is all or part of.
The channel conditions quantized value of relay station comprises that the base station arrives the SINR of relay station link, SIR, CQI, RI, or its quantized value is all or part of.
The user has on average obtained the resource quantized value, comprises that the user has obtained RB or RB group quantity or the throughput that has reached or successful data packets for transmission quantity and served arithmetic mean or weighted average on the stand-by period the user.
Relay station has on average obtained the resource quantized value, comprises the user's that the relay station stage of submitting in this sub-distribution serves the average arithmetic mean of resource quantized value sum based on institute's service-user number that obtained.
When a RB to be allocated or RB group are specified in the base station in Radio Resource, can specify appointment at random that also can be unordered successively according to the order of frequency direction.
Need to discharge the relay station of Radio Resource or user according to it in the channel conditions quantized value order from low to high that obtains on RB or the RB group, described RB or the RB of having obtained organized and discharges.
User or the relay station priority P on RB to be allocated or RB group can obtain as follows:
P = α · SINR i , k γ + β · T i
Wherein, SINR I, kBe the channel conditions quantized value of i user or relay station, T iBe i user or relay station on average obtained the resource quantized value, α, β, γ are regulatory factors.
Embodiment 1
In a junction network with 1 base station eNB, 2 relay station RN1, RN2 and 3 user UE1, UE2, UE3, user 1 and user 2 provide service by RN1 and RN2 respectively, and UE3 directly provides service by the base station.System's allowable resource is 5 RB, is designated as RB1, RB2, RB3, RB4, RB5, and the resource quantized value that on average obtained of known users i is T iIn the stage of submitting, the channel conditions quantized value of user i on RBk is SINR2 U I, k, all surpassed basic thresholding THb2; At the channel conditions quantized value of delivery phase user i on RBk is SINR1 U I, k, be SINR1 at the channel conditions quantized value of delivery phase relay station j on RBk R J, k, all surpassed basic thresholding THb1.
1, at first submit phase resource allocation, for RB1, the priority that obtains 3 users in accordance with the following methods respectively is:
P U 1,1 = SINR 2 U 1,1 T 1 , P U 2,1 = SINR 2 U 2,1 T 2 , P U 3,1 = SINR 2 U 3,1 T 3
P wherein 1,1Maximum is then distributed to UE1 with RB1.
2, consider that RB1 distributes the interference of introducing afterwards, upgrading the signal(l)ing condition quantized value of user i on RB1 is SINR2 ' I, 1, obtain its priority once more and be:
P U 1,1 = SINR 2 1,1 ′ U T 1 = 0 , P U 2,1 = SINR 2 2,1 ′ U T 2 , P U 3,1 = SINR 2 3,1 ′ U T 3
P wherein U 2,1Maximum and SINR2 ' 2,1 USurpassed basic thresholding THb2, then RB1 has also been distributed to user 2, because SINR2 ' 1,1 UAnd SINR2 ' 3,1 UAll do not surpass basic thresholding THb2, but then RB1 is got rid of outside distributing radio resource.
3, after the same method RB2, RB4 and RB5 are distributed to UE3 again, RB3 distributes to user 2, and preserves resource allocation result.
4, enter the delivery phase resource allocation, for RB1, the priority that obtains 3 users and 2 relay stations in accordance with the following methods respectively is respectively:
P U 1,1 = SINR 1 U 1,1 T 1 , P U 2,1 = SINR 1 U 2,1 T 2 , P U 3,1 = SINR 1 U 3,1 T 3
P U 1,1 = SINR 1 U 1,1 T 1 , P U 2,1 = SINR 1 U 2,1 T 2
P wherein R 1,1Maximum is then distributed to RN1 with RB1.And RB1 is deleted from assignable Radio Resource.
5, after the same method RB2 is distributed to RN1, RB3 distributes to RN2, and RB4 and RB5 distribute to UE3.
6, according to the resource allocation conditions of submitting stage and allocated phase, find that RN2 is lower than the throughput that RN2 can provide obtaining throughput on the RB3 on RB1 and RB3, and low degree reaches thresholding TH1, then preserving RN2 is identified in the S set, and RN1 can obtain throughput and be higher than the throughput that RN1 can provide on RB1 on RB1 and RB2, and the degree that exceeds reaches thresholding TH2, considers SINR1 R 1,1>SINR1 R 1,2, then discharge RB2 that it obtained as assignable Radio Resource, at this moment, it compares the throughput that it can provide obtaining throughput on the RB1 on RB1, and the part that has more is no more than TH2.
7, because the channel conditions quantized value SINR2 of RN2 on RB2 R 2,2Be not less than basic thresholding THb1, and its priority
Figure G2009102158748D00231
Maximum is then distributed to RN2 with RB2.
8, according to resource allocation conditions, find that the difference that all relay stations can obtain the throughput that throughput and this relay station can provide is no more than TH1 or TH2, assigning process finishes.
Final allocation result is: submit the stage, RB1 distributes to UE1, and RB1, RB3 distribute to UE2, and RB2, RB4, RB5 distribute to UE3; Delivery phase, RB1 distributes to RN1, and RB2, RB3 distribute to RN2, and RB4, RB5 distribute to UE3.
Fig. 7 is the schematic diagram according to the junction network system of the embodiment of the invention, and this junction network system comprises: base station 10, terminal 20 and relay station 30; Wherein,
Base station 10, be used for terminal 20 according to request service on the allowable resource in the stage of submitting the channel conditions quantized value and terminal on average obtained resource quantized value, the priority of computing terminal on allowable resource; Be used for that also the allowable resource in the stage of submitting is distributed to the channel conditions quantized value and be not less than first threshold value that sets in advance and the highest terminal of priority that calculates; Also be used for after the allowable resource in the stage of submitting assigns, distribute the allowable resource of delivery phase.
Preferably, base station 10 comprises:
Priority computing module 101 is used for specifying a Resource Block RB to be allocated or RB group and on average having obtained the priority of resource quantized value computing terminal on RB to be allocated or RB group according to the terminal of request service in channel conditions quantized value on RB to be allocated or the RB group and terminal at the allowable resource in the stage of submitting; Also be used for if the judged result of judge module 104 is not for all assigning, then be assigned with the channel conditions quantized value of terminal on RB or RB group of the interference update request service of introducing the back according to RB or RB group and once more RB or RB set of dispense are given the channel conditions quantized value that upgrades in the terminal of request service greater than first threshold value and with the channel conditions quantized value that upgrades calculate the highest terminal of priority, delete from assignable resource until RB or RB are organized;
Resource distribution module 102, be used for being not less than first threshold value for the terminal channel conditions quantized value of request service RB to be allocated or the RB set of dispense and calculate the highest terminal of priority;
Preserve module 103, be used to preserve the resource allocation result of RB or RB group;
Judge module 104 is used for judging according to the resource allocation result of preserving whether all RB or the RB group of submitting assignable resource of stage all assign.
Preferably, priority computing module 101 also is used for specifying a RB to be allocated or RB group and on average having obtained resource quantized value computing terminal and the priority of relay station on RB to be allocated or RB group according to the terminal of request service and relay station at the channel conditions quantized value on RB to be allocated or the RB group and terminal and relay station at the allowable resource of delivery phase;
Resource distribution module 102 also be used for being not less than second threshold value for the terminal of request service and relay station channel conditions quantized value the RB to be allocated of delivery phase or the RB set of dispense and calculate the highest terminal of priority or relay station and RB or RB group deleted from assignable resource, until all assignable RB or RB set of dispense are finished;
Judge module 104 also is used for judging according to the resource allocation result of preserving whether all RB of the assignable resource of delivery phase or RB group all assign.
Preferably, base station 10 also is used for the Resources allocation of delivery phase and submits the Resources allocation in stage and coordinate.
Junction network in the foregoing description uses the descending resource allocation method (extremely shown in Figure 6 as Fig. 3) of above preferred embodiment to carry out wireless resource allocation.
From above description, as can be seen, the present invention has realized following technique effect: because by successively the stage of submitting, delivery phase being carried out distributing based on the downlink resource of Radio Resource, and institute's distributing radio resource is further coordinated, can improve cell throughout, increase spectrum efficiency, guarantee the fairness between the user, improve QoS.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (19)

1. the descending resource allocation method of a junction network system is characterized in that, comprising:
The base station according to the terminal of request service on the allowable resource in the stage of submitting the channel conditions quantized value and described terminal on average obtained the resource quantized value, calculate the priority of described terminal on described allowable resource;
Described base station is distributed to the channel conditions quantized value with the described allowable resource of submitting the stage and is not less than first threshold value that sets in advance and the highest terminal of priority that calculates;
After the described allowable resource of submitting the stage assigns, the allowable resource of described base station assigns delivery phase.
2. method according to claim 1, it is characterized in that, the base station according to the terminal of request service on the allowable resource in the stage of submitting the channel conditions quantized value and described terminal on average obtained the resource quantized value, calculate the priority of described terminal on described allowable resource and comprise:
A Resource Block RB to be allocated or RB group are specified in described base station in the described allowable resource of submitting the stage;
Described base station according to the terminal of request service described RB to be allocated or channel conditions quantized value on the RB group and described terminal on average having obtained the resource quantized value calculates described terminal in described RB to be allocated or the priority on the RB group.
3. method according to claim 2 is characterized in that, the described allowable resource of submitting the stage is distributed to that the channel conditions quantized value is not less than first threshold value that sets in advance and the highest terminal of priority that calculates comprises in described base station:
Described base station described RB to be allocated or RB set of dispense are not less than described first threshold value to channel conditions quantized value in the terminal of described request service and calculate the highest terminal of priority;
The resource allocation result of described RB or RB group is preserved in described base station, wherein, described allocation result comprise described RB or RB group, obtain described RB or RB group terminal iidentification, obtain that network node that the terminal of described RB or RB group accepts to serve identifies and described network node in each relay station throughput that can provide;
Described base station judges according to the resource allocation result of preserving whether described all RB or the RB group of submitting in the assignable resource of stage all assigns;
If all do not assign, then described base station is assigned with the channel conditions quantized value of terminal on described RB or RB group that the described request service is upgraded in the interference of introducing the back according to described RB or RB group;
Described base station once more with the channel conditions quantized value that upgrades in described RB or RB set of dispense the terminal to the described request service greater than described first threshold value and with the channel conditions quantized value that upgrades calculate the highest terminal of priority, until described RB or RB group are deleted from assignable resource;
Described base station continues to distribute the RB next to be allocated or the RB that submit in the stage allowable resource of appointment to organize until all assignable RB or RB set of dispense are finished.
4. method according to claim 1 is characterized in that, after the described allowable resource of submitting the stage assigned, the allowable resource of described base station assigns delivery phase comprised:
Described base station according to the terminal of request service and relay station on the allowable resource of delivery phase the channel conditions quantized value and described terminal and relay station on average obtained the resource quantized value, calculate described terminal and the relay station priority on the allowable resource of described delivery phase;
The highest terminal or the relay station of priority that the channel conditions quantized value is not less than second threshold value that sets in advance and calculates distributed to the allowable resource of described delivery phase in described base station.
5. method according to claim 4, it is characterized in that, described base station according to the terminal of request service and relay station on the allowable resource of delivery phase the channel conditions quantized value and described terminal and relay station on average obtained the resource quantized value, calculate described terminal and the relay station priority on the allowable resource of described delivery phase and comprise:
A RB to be allocated or RB group are specified in described base station in the allowable resource of described delivery phase;
Described base station according to the terminal of described request service and relay station described RB to be allocated or the channel conditions quantized value on the RB group and described terminal and relay station on average having obtained the resource quantized value calculates described terminal and the priority of relay station on described RB to be allocated or RB group.
6. method according to claim 5, it is characterized in that the allowable resource of described delivery phase is distributed to that the channel conditions quantized value is not less than second threshold value that sets in advance and the highest terminal or the relay station of priority that calculate comprises in described base station:
Described base station described RB to be allocated or RB set of dispense are not less than described second threshold value to channel conditions quantized value in the terminal of described request service and the relay station and calculate the highest terminal or the relay station of priority;
The resource allocation result of described RB or RB group is preserved in described base station, and wherein, described allocation result comprises described RB or RB group, obtains terminal or the relay station sign and the obtainable throughput of each described relay station of described RB or RB group;
Delete described RB or RB group described base station from assignable resource;
Described base station judges according to the resource allocation result of preserving whether all RB or RB group in the assignable resource of described delivery phase all assign;
If still have assignable RB or RB group, RB next to be allocated in the delivery phase allowable resource of then described base station continuation distribution appointment or RB group are until all assignable RB or RB set of dispense are finished.
7. according to each described method of claim 1 to 6, it is characterized in that, after the described allowable resource of submitting the stage assigns, also comprise after the allowable resource of described base station assigns delivery phase:
Coordinate the Resources allocation and the described Resources allocation of submitting the stage of described delivery phase described base station.
8. method according to claim 7 is characterized in that, described base station coordinates to comprise to the Resources allocation and the described Resources allocation of submitting the stage of described delivery phase:
Described base station will be asked to obtain throughput in the relay station of service and the relay station that can provide throughput and both differences to reach the 3rd threshold value that sets in advance is provided is kept in the set;
Described base station discharge can obtain in the relay station of described request service throughput be higher than can provide throughput and both differences to reach the 4th threshold value that sets in advance relay station in the part resource that delivery phase obtained, be no more than described the 3rd threshold value or described the 4th threshold value until described difference;
If the quantity of the described resource that discharges is not 0, the described resource that discharges is redistributed in then described base station.
9. method according to claim 8 is characterized in that, if the quantity of the described resource that discharges is not 0, then described base station is redistributed the described resource that discharges and comprised:
If the quantity of the relay station in the described set be 0 and the quantity of the described resource that discharges be not 0, then described base station specifies a RB to be allocated or RB to organize in the described resource that discharges;
Described base station according to the terminal of request service channel conditions quantized value on described RB or the RB group and described terminal on average having obtained the resource quantized value calculates the priority of described terminal on described RB or RB group;
Described base station described RB or RB set of dispense are not less than described first threshold value to channel conditions quantized value in the terminal of described request service and calculate the highest terminal of priority;
The resource allocation result of described RB or RB group is preserved in described base station, and wherein, described resource allocation result comprises described RB or RB group and obtains described RB or the terminal iidentification of RB group;
Delete described RB or RB group described base station from the allowable resource of the described resource that discharges;
If do not had allowable resource in the described resource that discharges, then described base station is carried out the quantity of the relay station of resource coordination in described set once more and the quantity of the described resource that discharges is 0.
10. method according to claim 8 is characterized in that, if the quantity of the described resource that discharges is not 0, then described base station is redistributed the described resource that discharges and also comprised:
If the quantity of the relay station in the described set be not 0 and the quantity of the described resource that discharges be not 0, then described base station specifies a RB to be allocated or RB to organize in the described resource that discharges;
Described base station has been obtained the resource quantized value according to the relay station in the described set channel conditions quantized value on described RB or the RB group and described relay station average and has been calculated the priority of described relay station on described RB or RB group;
Described base station be not less than described second threshold value for channel conditions quantized value in the relay station of described set described RB or RB set of dispense and calculate the highest relay station of priority;
The resource allocation result of described RB or RB group is preserved in described base station;
If do not had allowable resource in the described resource that discharges, then described base station is carried out the quantity of the relay station of resource coordination in described set once more and the quantity of the described resource that discharges is 0.
11. method according to claim 8 is characterized in that, described base station coordinates also to comprise to the Resources allocation and the described Resources allocation of submitting the stage of described delivery phase:
If the quantity of the relay station in the described set be not 0 and the quantity of the described resource that discharges be 0, then described base station obtains from described delivery phase according to the resource allocation result of preserving to choose terminal according to obtaining resource quantity by the few order of as many as in the terminal of resource;
Described base station discharges the part resource that selected terminal obtains in described delivery phase;
A RB to be allocated or RB group are specified in described base station in the resource that is discharged;
Described base station has been obtained the resource quantized value according to the relay station in the described set channel conditions quantized value on described RB or the RB group and described relay station average and has been calculated the priority of described relay station on described RB or RB group;
Described base station be not less than described second threshold value for channel conditions quantized value in the relay station of described set described RB or RB set of dispense and calculate the highest relay station of priority;
The resource allocation result of described RB or RB group is preserved in described base station;
If do not had allowable resource in the described resource that discharges, then described base station is carried out the quantity of the relay station of resource coordination in described set once more and the quantity of the described resource that discharges is 0.
12. method according to claim 1 is characterized in that,
If terminal only provides service by the base station, then the channel conditions quantized value of described terminal comprises one of following at least: described base station is to Signal to Interference plus Noise Ratio SINR, signal-to-jamming ratio SIR, channel quality indicator (CQI) and the order indication RI of described link of terminal;
If terminal only provides service by a certain relay station, then the channel conditions quantized value of described terminal comprises one of following at least: described relay station is to SINR, SIR, CQI and the RI of described link of terminal;
If terminal simultaneously provides service by base station and/or one or more relay station, then the channel conditions quantized value of described terminal comprises one of following at least: SINR, SIR, CQI and the RI of described base station to described link of terminal and/or one or more relay station to the merging equivalent periodic line of described link of terminal;
Described terminal average obtained the resource quantized value and comprised that the quantity of acquired RB of terminal or RB group or throughput that terminal has reached or the successful data packets for transmission quantity of terminal are at arithmetic mean or the weighted average of Terminal Service on the stand-by period.
13. method according to claim 4 is characterized in that,
It is one of following that the channel conditions quantized value of described relay station comprises at least: the base station is to SINR, SIR, CQI and the RI of the link of relay station;
Described relay station average obtained the average arithmetic mean of resource quantized value sum based on the number of terminals of being served that obtained of the resource quantized value comprises that the relay station stage of submitting serves in this sub-distribution terminal.
14. method according to claim 8 is characterized in that, the mode that described base station discharges the resource of relay station or terminal is:
Channel conditions quantized value order from high to low on acquired RB or RB group discharges according to relay station or terminal.
15. method according to claim 1 is characterized in that, described terminal or the relay station priority on allowable resource is:
Figure F2009102158748C00081
Wherein, SINR I, kBe the channel conditions quantized value of i terminal or relay station, T iBe i terminal or relay station on average obtained the resource quantized value, α, β and γ are regulatory factors.
16. a junction network system is characterized in that, comprising: base station, terminal and relay station; Wherein,
Described base station, be used for terminal according to request service on the allowable resource in the stage of submitting the channel conditions quantized value and described terminal on average obtained the resource quantized value, calculate the priority of described terminal on described allowable resource; Be used for that also the described allowable resource of submitting the stage is distributed to the channel conditions quantized value and be not less than first threshold value that sets in advance and the highest terminal of priority that calculates; Also be used for after the described allowable resource of submitting the stage assigns, distribute the allowable resource of delivery phase.
17. system according to claim 16 is characterized in that, described base station comprises:
The priority computing module, be used for the described allowable resource of submitting the stage specify a Resource Block RB to be allocated or RB group and according to the terminal of request service described RB to be allocated or channel conditions quantized value on the RB group and described terminal on average having obtained the resource quantized value calculates described terminal in described RB to be allocated or the priority on the RB group; Also be used for if the judged result of judge module is not for all assigning, then be assigned with according to described RB or RB group that the channel conditions quantized value of terminal on described RB or RB group of described request service upgraded in the interference of introducing the back and the channel conditions quantized value that once more described RB or RB set of dispense upgraded in the terminal to the described request service greater than described first threshold value and with the channel conditions quantized value that upgrades calculate the highest terminal of priority, delete from assignable resource until described RB or RB are organized;
Resource distribution module, be used for that RB to be allocated or RB set of dispense be not less than described first threshold value to the terminal channel conditions quantized value of described request service and calculate the highest terminal of priority;
Preserve module, be used to preserve the resource allocation result of described RB or RB group;
Judge module is used for judging according to the resource allocation result of preserving whether described all RB or the RB group of submitting assignable resource of stage all assigns.
18. system according to claim 17 is characterized in that,
Described priority computing module also be used for the allowable resource of described delivery phase specify a RB to be allocated or RB group and according to the terminal of described request service and relay station described RB to be allocated or the channel conditions quantized value on the RB group and described terminal and relay station on average having obtained the resource quantized value calculates described terminal and the priority of relay station on described RB to be allocated or RB group;
Described resource distribution module be used for that also the RB described to be allocated of described delivery phase or RB set of dispense be not less than described second threshold value to the terminal of described request service and relay station channel conditions quantized value and calculate the highest terminal of priority or relay station and described RB or RB group deleted from assignable resource, until all assignable RB or RB set of dispense are finished;
Described judge module also is used for judging according to the resource allocation result of preserving whether all RB of the assignable resource of described delivery phase or RB group all assign.
19., it is characterized in that described base station also is used for the Resources allocation of described delivery phase and the described Resources allocation of submitting the stage are coordinated according to each described system of claim 16 to 18.
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