CN103313417A - Resource scheduling method, device and system - Google Patents
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- CN103313417A CN103313417A CN2012100719720A CN201210071972A CN103313417A CN 103313417 A CN103313417 A CN 103313417A CN 2012100719720 A CN2012100719720 A CN 2012100719720A CN 201210071972 A CN201210071972 A CN 201210071972A CN 103313417 A CN103313417 A CN 103313417A
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Abstract
The invention discloses a resource scheduling method, device and system. The method comprises the steps of: writing an initial position of a resource block allocated to user equipment, a discrete jump rule of configured effective orthogonal frequency division multiplexing technology OFDM resource elements and the total number of the effective OFDM resource elements into a resource allocation indication information; transmitting the resource allocation indication information to the user equipment; and determining the effective OFDM resource elements according to the initial position of the resource block, the discrete jump rule of the OFDM resource elements and the total number of the effective OFDM resource elements, and bearing downlink data to be transmitted by using the effective OFDM resource elements. The data is born by using the discretely changing OFDM resource elements, the collision probability with strong interference during signal reception is reduced, and the reliability of signal transmission is improved.
Description
Technical field
The invention belongs to communication technical field, relate in particular to resource regulating method, Apparatus and system in a kind of cordless communication network.
Background technology
Under the wireless communication network environments, interference is the key factor of system for restricting capacity, at present, usually adopts interference coordination technique to reduce or eliminate interference in the mobile communication system.Interference coordination technique need to be carried out resource distribution in advance to the residential quarter, and the exclusive Resource Block of distributing to residential quarter is static configuration in advance, and in order to realize interference coordination, the time of each residential quarter of system requirements is synchronous.
In Long Term Evolution as shown in Figure 1 (Long Term Evolution, the LTE) system, frequency resource block A (RBA) distributes to residential quarter BS0, and frequency resource block B (RBB) distributes to residential quarter BS1; Frequency resource block A, frequency resource block B use for the subscriber equipment (User Equipment, UE) that is positioned at the cell edge position among BS0, the BS1 respectively, and the UE that is positioned at the center of housing estate position can use shared resource.
Existing interference coordination technique generally is applicable to such as in the good mobile communication system of the in advance planning such as mobile cellular network, and the employed Radio Resource in each base station is configured by the network planning and optimization, thereby has guaranteed the feasibility of interference coordination schemes.But no longer planned in advance in the communication network of deployment by operator in WLAN (wireless local area network) and Home eNodeB etc., existing interference coordination technique is then no longer applicable.
And the communication network great majority such as WLAN (wireless local area network) and Home eNodeB are deployed in the indoor environment, global positioning system (Global Positioning System, GPS) signal is difficult for obtaining, therefore between each access point, realize relatively difficulty of time synchronized, and in the situation that not free synchronous, for time division duplex (Time Division Duplexing, TDD) WLAN (wireless local area network) of working form, for example use the WLAN (wireless local area network) of 802.11 agreements, superelevation (NUHT) wireless communication system etc. of handling up, and Home eNodeB, timesharing Long Term Evolution (Time Division Long Term Evolution for example, TD-LTE) Home eNodeB (Femto) etc., the phenomenon that cross time-slot between its neighbor cell disturbs is all more serious, affects also more abominable.
The cross time-slot of minizone disturbs and refers under the prerequisite of two residential quarters with frequently work, adjacent two residential quarters, when the signal of receiving terminal receives overlapping on the life period in the emission of the signal of one of them residential quarter and another residential quarter, may receive the signal of receiving terminal in another residential quarter causes strong jamming, the interference of minizone may have following multiple interference scene.For example: the transmitting of the base station of subscriber equipment or network side in residential quarter, the interference that the signal of the subscriber equipment in another residential quarter is received.Again for example: the transmitting of the base station of subscriber equipment or network side in residential quarter, the interference that the signal of base station in another residential quarter is received.The below illustrates wherein two kinds of more serious scenes of interference ratio:
Disturb scene just like shown in Figure 2, residential quarter A is in the downlink transfer cycle, and the base station BS 0 among the A of residential quarter is to user equipment (UE) 0 the transmission of data; Residential quarter B is in uplink transmission cycle, and the base station BS 1 among the B of residential quarter is receiving the data of subscriber equipment U E1 transmission.If the user equipment (UE) of descending reception among the A of residential quarter 0 is nearer apart with the user equipment (UE) 1 of the up emission of residential quarter B, and as shown in Figure 3, base station BS 0 is distributed to the resource STA0 of subscriber equipment U E0 and resource STA1 that base station BS 1 is distributed to user equipment (UE) 1 and is existed in time certain overlappingly, and the user equipment (UE) 0 of so descending reception of residential quarter A will be subject to the strong jamming of signal of user equipment (UE) 1 emission of up emission among the B of residential quarter.
Disturb scene two as shown in Figure 4, residential quarter A is in uplink transmission cycle, and the base station BS 0 among the A of residential quarter is receiving the data of user equipment (UE) 0 transmission; Residential quarter B is in the downlink transfer cycle, and the base station BS 1 among the B of residential quarter is to user equipment (UE) 1 the transmission of data.Base station BS 0 among the A of residential quarter can be subject to the strong jamming of the signal of base station BS 1 emission among the B of residential quarter when receiving signal.
Common such as the mobile communication system that planning is good in advance such as mobile cellular network in, because the up-downgoing transmitting power is asymmetric, base station transmitting power is much larger than the transmitting power of subscriber equipment, and the base station is deployed in higher geographical position usually, propagation conditions is better between the base station, therefore disturbs the impact of scene two even more serious.And no longer planned in advance in the communication network of deployment by operator in WLAN (wireless local area network) or Home eNodeB etc., because the base station is identical or approaching with the transmitting power of subscriber equipment, the power of interference signal is more relevant with the distance of interference source and receiving terminal, therefore disturbs scene for a moment more abominable.
As seen, in the prior art, when neighbor cell is worked with frequency in the mobile communications network, when receiving end signal receives, inevitably exist the cross time-slot of signal to disturb.
Summary of the invention
In view of this, an object of the present invention is to provide the resource regulating method in a kind of cordless communication network, the problem that the cross time-slot when receiving in order to solve the signal that exists between the prior art small area disturbs.For there is a basic understanding some aspects to the embodiment that discloses, the below has provided simple summary.This summary part is not to comment general, neither determine the key/critical component or describe the protection range of these embodiment.Its sole purpose is to present some concepts with simple form, with this preamble as following detailed description.
The embodiment of the invention provides a kind of resource regulating method, comprising:
To write resource for the total quantity of the discrete saltus step rule of the efficient orthogonal frequency division multiplexing technology OFDM resource element of the original position of the Resource Block of user equipment allocation, configuration and described effective OFDM resource element and distribute in the indication information, and distribute indication information to send to subscriber equipment described resource; And
Determine effective OFDM resource element according to the discrete saltus step rule of the original position of described Resource Block, effective OFDM resource element and the total quantity of effective OFDM resource element, use described effective OFDM resource element to carry downlink data waiting for transmission.
In some optional embodiments, in described resource distribution indication information, write the original position of described Resource Block in the designated bit position of the first setting quantity, in the designated bit position of the second setting quantity, write the discrete saltus step rule of described effective OFDM resource element, in the designated bit position of the 3rd setting quantity, write the total quantity of described effective OFDM resource element.
In some optional embodiments, the saltus step rule of described effective OFDM resource element is the pseudorandom saltus step in the hop period of setting of described effective OFDM resource element.
In some optional embodiments, the described process of determining effective OFDM resource element specifically comprises:
Determine the original position of spendable Resource Block;
From the original position of the spendable Resource Block determined, discrete saltus step rule according to described effective OFDM resource element, choose successively effective OFDM resource element, and when choosing effective OFDM resource element, upgrade effective OFDM resource element stored count value, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
In some optional embodiments, discrete saltus step rule according to described effective OFDM resource element, when choosing successively effective OFDM resource element, after having traveled through the discrete saltus step rule of described effective OFDM resource element at every turn, if described effective OFDM resource element stored count value does not reach the total quantity of described effective OFDM resource element, then repeat to travel through the discrete saltus step rule of described effective OFDM resource element, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
In some optional embodiments, described OFDM resource element is OFDM symbol or OFDM subcarrier or basic OFDM time/frequency source block.
The embodiment of the invention also provides a kind of resource regulating method, comprising:
Receive the resource distribution indication information that the network equipment sends;
Distribute original position, the discrete saltus step rule of efficient orthogonal frequency division multiplexing technology OFDM resource element and the total quantity of described effective OFDM resource element of the Resource Block of the described network equipment distribution of carrying in the indication information according to described resource, determine effective OFDM resource element;
Use described effective OFDM resource element to carry upstream data waiting for transmission.
In some optional embodiments, from described resource distribution indication information, parse the original position of the Resource Block of distribution in the designated bit position of the first setting quantity; And distribute the indication information second to set the discrete saltus step rule of the effective OFDM resource element that parses distribution in the designated bit position of quantity and set the total quantity that parses described effective OFDM resource element of distribution the designated bit position of quantity from the 3rd from resource.
In some optional embodiments, the saltus step rule of described effective OFDM resource element is the pseudorandom saltus step in the hop period of setting of described effective OFDM resource element.
In some optional embodiments, the described process of determining effective OFDM resource element specifically comprises:
The original position of distributing the Resource Block that distributes in the indication information according to described resource is determined the original position of self spendable Resource Block;
From the original position of the spendable Resource Block determined, discrete saltus step rule according to described effective OFDM resource element, choose successively effective OFDM resource element, and when choosing effective OFDM resource element, upgrade effective OFDM resource element stored count value, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
In some optional embodiments, discrete saltus step rule according to described effective OFDM resource element, when choosing successively effective OFDM resource element, after having traveled through the discrete saltus step rule of described effective OFDM resource element at every turn, if described effective OFDM resource element stored count value does not reach the total quantity of described effective OFDM resource element, then repeat to travel through the discrete saltus step rule of described effective OFDM resource element, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
In some optional embodiments, described OFDM resource element is OFDM symbol or OFDM subcarrier or basic OFDM time/frequency source block.
The embodiment of the invention also provides a kind of resource scheduling device, comprising:
The resource distribution module is used for writing resource for the total quantity of the discrete saltus step rule of the efficient orthogonal frequency division multiplexing technology OFDM resource element of the original position of the Resource Block of user equipment allocation, configuration and described effective OFDM resource element and distributes indication information;
Information sending module is used for distributing indication information to send to subscriber equipment described resource;
The scheduling of resource module, be used for the discrete saltus step rule of the original position according to described Resource Block, effective OFDM resource element and the total quantity of effective OFDM resource element and determine effective OFDM resource element, use described effective OFDM resource element to carry downlink data waiting for transmission.
In some optional embodiments, described resource distribution module specifically is used for:
In described resource distribution indication information, write the original position of described Resource Block in the designated bit position of the first setting quantity, in the designated bit position of the second setting quantity, write the discrete saltus step rule of described effective OFDM resource element, in the designated bit position of the 3rd setting quantity, write the total quantity of described effective OFDM resource element.
In some optional embodiments, described resource distribution module specifically is used for:
The saltus step rule of described effective OFDM resource element is set to the pseudorandom saltus step in the hop period of setting of described effective OFDM resource element.
In some optional embodiments, described scheduling of resource module specifically is used for:
According to the original position of the Resource Block that distributes, determine the original position of self spendable Resource Block;
From the original position of the spendable Resource Block determined, discrete saltus step rule according to described effective OFDM resource element, choose successively effective OFDM resource element, and when choosing effective OFDM resource element, upgrade effective OFDM resource element stored count value, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
In some optional embodiments, described scheduling of resource module specifically is used for:
Discrete saltus step rule according to described effective OFDM resource element, when choosing successively effective OFDM resource element, after having traveled through the discrete saltus step rule of described effective OFDM resource element at every turn, if described effective OFDM resource element stored count value does not reach the total quantity of described effective OFDM resource element, then repeat to travel through the discrete saltus step rule of described effective OFDM resource element, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
The embodiment of the invention also provides a kind of network equipment, comprises above-mentioned resource scheduling device.
The embodiment of the invention also provides a kind of resource scheduling device, comprising:
Information receiving module is used for receiving the resource distribution indication information that the network equipment sends;
Schedule process module, be used for original position, the discrete saltus step rule of efficient orthogonal frequency division multiplexing technology OFDM resource element and the total quantity of described effective OFDM resource element of the Resource Block that distributes according to the described network equipment that described resource distributes indication information to carry, determine effective OFDM resource element;
Data transmission module is used for using described effective OFDM resource element to carry upstream data waiting for transmission.
In some optional embodiments, described schedule process module specifically is used for:
From described resource distribution indication information, parse the original position of the Resource Block of distribution in the designated bit position of the first setting quantity; And distribute the indication information second to set the discrete saltus step rule of the effective OFDM resource element that parses distribution in the designated bit position of quantity and set the total quantity that parses described effective OFDM resource element of distribution the designated bit position of quantity from the 3rd from resource.
In some optional embodiments, described schedule process module, the concrete saltus step rule that is used for parsing the pseudorandom saltus step in the hop period of setting of described effective OFDM resource element.
In some optional embodiments, described schedule process module specifically is used for:
The original position of distributing the Resource Block that distributes in the indication information according to described resource is determined the original position of self spendable Resource Block;
From the original position of the spendable Resource Block determined, discrete saltus step rule according to described effective OFDM resource element, choose successively effective OFDM resource element, and when choosing effective OFDM resource element, upgrade effective OFDM resource element stored count value, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
In some optional embodiments, described schedule process module specifically is used for:
Discrete saltus step rule according to described effective OFDM resource element, when choosing successively effective OFDM resource element, after having traveled through the discrete saltus step rule of described effective OFDM resource element at every turn, if described effective OFDM resource element stored count value does not reach the total quantity of described effective OFDM resource element, then repeat to travel through the discrete saltus step rule of described effective OFDM resource element, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
The embodiment of the invention also provides a kind of subscriber equipment, comprises above-mentioned resource scheduling device.
The embodiment of the invention also provides a kind of resource scheduling system, comprises the above-mentioned network equipment and above-mentioned subscriber equipment.
The resource regulating method that the embodiment of the invention provides, Apparatus and system, for effective OFDM resource element conduct of the discrete saltus step of user equipment allocation can be used resource, and the resource used of the discrete saltus step of use is to user's transmitting downlink data, so that the overlapping probability of OFDM resource element of carrying data reduces greatly, thereby when having reduced signal and having received and strongly disturbing collision probability, inhibition as much as possible the time-slot cross between different districts disturb, improve the reliability of signal transmission, improved systematic function.
For above-mentioned and relevant purpose, one or more embodiment comprise the feature that the back will describe in detail and particularly point out in the claims.Below explanation and accompanying drawing describe some illustrative aspects in detail, and its indication only is some modes in the utilizable variety of way of principle of each embodiment.Other benefit and novel features will consider by reference to the accompanying drawings and become obviously along with following detailed description, and the disclosed embodiments are to comprise being equal to of all these aspects and they.
Figure of description
Fig. 1 is the principle schematic that the LTE resources in network is distributed in the prior art;
Fig. 2 is the schematic diagram of the scene one that signal cross is disturbed between the prior art small area;
Fig. 3 is the principle schematic that cross time-slot disturbs in the prior art;
Fig. 4 is the schematic diagram of the scene two that signal cross is disturbed between the prior art small area;
Fig. 5 is the flow chart of resource regulating method in the embodiment of the invention;
Fig. 6 is the principle schematic that resource is distributed in the embodiment of the invention;
Fig. 7 is the realization flow figure of the user equipment side of resource regulating method in the embodiment of the invention;
Fig. 8 is the structural representation of the resource scheduling device of network side in the embodiment of the invention;
Fig. 9 is the structural representation of the resource scheduling device in the subscriber equipment in the embodiment of the invention.
Embodiment
The following description and drawings illustrate specific embodiments of the present invention fully, to enable those skilled in the art to put into practice them.Other embodiments can comprise structure, logic, electric, process and other change.Embodiment only represents possible variation.Unless explicitly call for, otherwise independent assembly and function are optional, and the order of operation can change.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.The scope of embodiment of the present invention comprises the gamut of claims, and all obtainable equivalents of claims.In this article, these embodiments of the present invention can be represented with term " invention " individually or always, this only is for convenient, and if in fact disclose and surpass one invention, not that the scope that will automatically limit this application is any single invention or inventive concept.
For the problem that the cross time-slot that exists between the existing wireless communications network small area disturbs, the embodiment of the invention provides a kind of resource regulating method, and its flow process comprises the steps: as shown in Figure 5
S11: will for the discrete saltus step rule of efficient orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, the OFDM) resource element of the original position of the Resource Block of user equipment allocation, configuration and effectively the total quantity of OFDM resource element write resource and distribute in the indication information.
Distribute in the indication information in resource, in the designated bit position of the first setting quantity, write the original position of Resource Block, in the designated bit position of the second setting quantity, write the discrete saltus step rule of effective OFDM resource element, in the designated bit position of the 3rd setting quantity, write the total quantity of effective OFDM resource element.For example: the network equipment will write for the original position of the Resource Block of user equipment allocation resource and distribute and be used for front 9 bits that resource is distributed the relevant field of indication in the indication information, the discrete saltus step rule of effective OFDM of distributing is write in 3 bits of these 9 bit back, the total quantity of effective OFDM resource element is write in 6 bits of these 3 bit back.
Preferably, effectively the saltus step rule of OFDM resource element is the pseudorandom saltus step in the hop period of setting of effective OFDM resource element.
Above-mentioned resource distributes indication information can use existing various resource allocation signal for the resource allocation information feedback, carry therein the original position of Resource Block, the discrete saltus step rule of efficient orthogonal frequency division multiplexing technology OFDM resource element and the information such as total quantity of effective OFDM resource element, can carry these information with N selected bit in the resource allocation signal.
Above-mentioned OFDM resource element can be OFDM symbol or OFDM subcarrier or basic OFDM time/frequency source block.
As shown in Figure 6, take the OFDM resource element as the OFDM symbol as example, base station BS 0 among the A of residential quarter be the discrete saltus step rule of effective OFDM symbol of user equipment (UE) 0 configuration shown in the STA0 saltus step rule among Fig. 6, the base station BS 1 among the B of residential quarter be that the discrete saltus step rule of effective OFDM symbol of configuring of subscriber equipment U E1 is shown in the STA1 saltus step rule among Fig. 6.
Suppose that the base station BS 0 among the A of residential quarter is effective OFDM symbol for the discrete saltus step rule (STA0 saltus step rule) of effective OFDM symbol of user equipment (UE) 0 configuration for the 1st, 5,8,14,16,24,34 the OFDM symbol that begins from original position, one of them hop period takies 35 OFDM symbols.Suppose that the base station BS 1 among the B of residential quarter is effective OFDM symbol for the discrete saltus step rule (STA1 saltus step rule) of effective OFDM symbol of subscriber equipment U E1 configuration for the 3rd, 8,11,17,20,29,35 the OFDM symbol that begins from original position, one of them hop period takies 35 OFDM symbols.The part of specifically filling referring to grid among Fig. 6.Choose effective OFDM symbol according to such saltus step rule, the overlapping possibility of OFDM of wherein carrying the transmission of data reduces greatly, for example shown in the figure, even both zero-times are in full accord, also only have an OFDM symbol shown in the part of dotted ellipse among Fig. 6 overlapping, this minute quantity overlapping, can impact hardly the correct receive data of system, therefore, such resource distribution mode greatly reduces time-slot cross and disturbs, and has greatly improved accuracy and the reliability of transfer of data.
S12: distribute indication information to send to subscriber equipment resource.
The network equipment distributes indication information to send to subscriber equipment resource, realizes the resource that notifying user equipment is distributed.
S13: determine effective OFDM resource element according to the discrete saltus step rule of the original position of Resource Block, effective OFDM resource element and the total quantity of effective OFDM resource element, use effective OFDM resource element to carry downlink data waiting for transmission.
The network equipment can use the preferred OFDM resource element of determining to carry the downlink datas such as down management data waiting for transmission and/or downlink service data.
Determine the process of effective OFDM resource element, specifically comprise the original position according to the Resource Block that distributes, determine the original position of self spendable Resource Block; From the original position of the spendable Resource Block determined, discrete saltus step rule according to effective OFDM resource element, choose successively effective OFDM resource element, and when choosing effective OFDM resource element, upgrade effective OFDM resource element stored count value, until effective OFDM resource element stored count value reaches the total quantity of effective OFDM resource element.
Discrete saltus step rule according to effective OFDM resource element, when choosing successively effective OFDM resource element, after having traveled through the discrete saltus step rule of effective OFDM resource element at every turn, if effectively OFDM resource element stored count value does not reach the total quantity of effective OFDM resource element, then repeat to travel through the discrete saltus step rule of effective OFDM resource element, until effective OFDM resource element stored count value reaches the total quantity of effective OFDM resource element.
Continue to use the example of top, base station BS 0 is among the Resource Block STA0 of user equipment (UE) 0 distribution, effectively the discrete saltus step rule of OFDM symbol is effective OFDM symbol for the 1st, 5,8,14,16,24,34 the OFDM symbol that begins from original position, with these location positionings out.When traversal when once effectively above-mentioned 8 effective OFDM symbols of obtaining of the discrete saltus step rule of OFDM symbol do not reach the total quantity M of effective OFDM symbol, the discrete saltus step rule that repeats to travel through effective OFDM symbol continues to choose effective OFDM symbol, until reach till the total quantity of effective OFDM symbol.For example for the second time the original position of traversal is the 36th OFDM symbol, and the effective OFDM symbol that then obtains is the 1st, 5,8,14,16,24,34,36,40,43, a 49...... OFDM symbol.
The execution sequence of above-mentioned steps S12 and step S13 in no particular order.
Optionally, in the said method, when the network equipment can receive the resource allocation request that subscriber equipment sends again again execution in step S11 be the user equipment allocation resource.Be subscriber equipment need to establish a communications link the time, send the resource allocation request of request Resources allocation to the network equipment, wherein the network equipment generally is the access device of the network sides such as base station, the access point in the local area network (LAN) or Home eNodeB in the mobile communication system.After the network equipment receives resource allocation request, be the user equipment allocation Internet resources, subscriber equipment then can use the Internet resources of distribution to communicate.Wherein resource allocation request can be used existing various signaling for resource allocation request.
Said method has described that the network equipment is the implementation procedure of user equipment allocation resource in the communication network, accordingly, subscriber equipment is after the relevant information that receives the resource distribution, corresponding processing procedure is also arranged, therefore, the embodiment of the invention also provides a kind of resource regulating method, describes the scheduling of resource processing procedure of user equipment side in detail, the method flow process comprises the steps: as shown in Figure 7
S21: receive the resource distribution indication information that the network equipment sends.
Subscriber equipment receives the network equipment for self distributing the resource of returning behind the available Internet resources to distribute indication information.
S22: distribute the discrete saltus step rule of the original position of the Resource Block of the network equipment distribution of carrying in the indication information, effective OFDM resource element and the total quantity of effective OFDM resource element according to the resource that receives, determine effective OFDM resource element.
Subscriber equipment is resolved this information after receiving resource distribution indication information.From the resource distribution indication information that receives, parse the original position of the Resource Block of network equipment distribution in the designated bit position of the first setting quantity; And distribute the indication information second to set the discrete saltus step rule that parses effective OFDM resource element that the network equipment distributes in the designated bit position of quantity and set the total quantity that parses effective OFDM resource element that the network equipment distributes the designated bit position of quantity from the 3rd from resource.
Preferably, effectively the saltus step rule of OFDM resource element is the pseudorandom saltus step in the hop period of setting of effective OFDM resource element.
The above-mentioned process of determining effective OFDM resource element specifically comprises the original position of distributing the Resource Block that the network equipment distributes in the indication information according to resource, determines the original position of self spendable Resource Block; From the original position of the spendable Resource Block determined, discrete saltus step rule according to effective OFDM resource element, choose successively effective OFDM resource element, and when choosing effective OFDM resource element, upgrade effective OFDM resource element stored count value, until effective OFDM resource element stored count value reaches the total quantity of effective OFDM resource element.
Discrete saltus step rule according to effective OFDM resource element, when choosing successively effective OFDM resource element, after having traveled through the discrete saltus step rule of effective OFDM resource element at every turn, if effectively OFDM resource element stored count value does not reach the total quantity of effective OFDM resource element, then repeat to travel through the discrete saltus step rule of effective OFDM resource element, continue to choose effective OFDM resource element, until effectively OFDM resource element stored count value reaches till the total quantity of effective OFDM resource element.
Above-mentioned OFDM resource element can be OFDM symbol or OFDM subcarrier or basic OFDM time/frequency source block.
Continue to use the example of top, still take the OFDM resource element as the OFDM symbol as example, subscriber equipment distributes the relevant field that identifies the indication information for resource distribution indication from resource, front 9 bits in this field parse the original position of Resource Block, in 3 bits of these 9 bit back, parse the discrete saltus step rule of effective OFDM symbol, in 6 bits of these 3 bit back, parse the total quantity of effective OFDM symbol.
After the original position of determining spendable Resource Block, discrete saltus step rule according to effective OFDM resource element, begin to determine according to the saltus step rule position of indicated effective OFDM resource element from original position, for example: base station BS 0 is among the Resource Block STA0 of user equipment (UE) 0 distribution, effectively the discrete saltus step rule of OFDM symbol is effective OFDM symbol for the 1st, 5,8,14,16,24,34 the OFDM symbol that begins from original position, with these location positionings out.When traversal when once effectively above-mentioned 8 effective OFDM symbols of obtaining of the discrete saltus step rule of OFDM symbol do not reach the total quantity M of effective OFDM symbol, the discrete saltus step rule that repeats to travel through effective OFDM symbol continues to choose effective OFDM symbol, until reach till the total quantity of effective OFDM symbol.For example for the second time the original position of traversal is the 36th OFDM symbol, and the effective OFDM symbol that then obtains is the 1st, 5,8,14,16,24,34,36,40,43, a 49...... OFDM symbol.Base station BS 1 is among the Resource Block STA1 of user equipment (UE) 1 distribution, and effectively the OFDM symbol determines it also is similar.
S23: use the effective OFDM resource element of determining to carry upstream data waiting for transmission.
Continue to use the example of top, use determine the 1st, 5,8,14,16 ... individual OFDM symbols carry upstream data waiting for transmission.
Based on same inventive concept, the embodiment of the invention also provides a kind of resource scheduling device, this device can be arranged in any one network equipment in the communication network, be embodied as the user equipment allocation Internet resources, wherein, the network equipment can be base station or Home eNodeB etc., and the structure of this device comprises as shown in Figure 8: resource distribution module 11, information sending module 12 and scheduling of resource module 13.
Scheduling of resource module 13, be used for the discrete saltus step rule of the original position according to the Resource Block that distributes, effective OFDM resource element and the total quantity of effective OFDM resource element and determine effective OFDM resource element, use effective OFDM resource element to carry downlink data waiting for transmission.
Preferably, above-mentioned resource distribution module 11, concrete being used for distributes indication information first to set the original position that writes Resource Block in the designated bit position of quantity in resource, in the designated bit position of the second setting quantity, write the discrete saltus step rule of effective OFDM resource element, in the designated bit position of the 3rd setting quantity, write the total quantity of effective OFDM resource element.
Preferably, above-mentioned resource distribution module 11, the concrete saltus step rule that is used for effective OFDM resource element is set to the pseudorandom saltus step in the hop period of setting of effective OFDM resource element.
Preferably, above-mentioned scheduling of resource module 13, the concrete original position that is used for according to the Resource Block that distributes is determined the original position of self spendable Resource Block; From the original position of the spendable Resource Block determined, discrete saltus step rule according to effective OFDM resource element, choose successively effective OFDM resource element, and when choosing effective OFDM resource element, upgrade effective OFDM resource element stored count value, until effective OFDM resource element stored count value reaches the total quantity of effective OFDM resource element.
Preferably, above-mentioned scheduling of resource module 13, the concrete discrete saltus step rule that is used for according to effective OFDM resource element, when choosing successively effective OFDM resource element, after having traveled through the discrete saltus step rule of effective OFDM resource element at every turn, if effectively OFDM resource element stored count value does not reach the total quantity of effective OFDM resource element, then repeat to travel through the discrete saltus step rule of effective OFDM resource element, until effective OFDM resource element stored count value reaches the total quantity of effective OFDM resource element.
Based on same inventive concept, the embodiment of the invention also provides another kind of resource scheduling device, this device can be arranged in any one subscriber equipment in the communication network, Adoption Network equipment is user equipment allocation Internet resources carrying data, realize transfer of data, the structure of this device comprises as shown in Figure 9: information receiving module 21, schedule process module 22 and data transmission module 23.
Information receiving module 21 is used for receiving the resource distribution indication information that the network equipment sends.
Schedule process module 22, be used for discrete saltus step rule and the effective total quantity of OFDM resource element of original position, the efficient orthogonal frequency division multiplexing technology OFDM resource element of the Resource Block that distributes according to the network equipment that resource distributes indication information to carry, determine effective OFDM resource element.
Data transmission module 23 is used for using effective OFDM resource element to carry data waiting for transmission.
Preferably, above-mentioned schedule process module 22, concrete being used for distributes indication information first to set the original position that parses the Resource Block of network equipment distribution the designated bit position of quantity from resource; And distribute the indication information second to set the discrete saltus step rule that parses effective OFDM resource element that the network equipment distributes in the designated bit position of quantity and set the total quantity that parses effective OFDM resource element that the network equipment distributes the designated bit position of quantity from the 3rd from resource.
Preferably, above-mentioned schedule process module 22, the concrete saltus step rule that is used for parsing the pseudorandom saltus step in the hop period of setting of effective OFDM resource element.
Preferably, above-mentioned schedule process module 22, the concrete original position that is used for distributing according to resource the Resource Block that the indication information network equipment distributes is determined the original position of self spendable Resource Block; From the original position of the spendable Resource Block determined, discrete saltus step rule according to effective OFDM resource element, choose successively effective OFDM resource element, and when choosing effective OFDM resource element, upgrade effective OFDM resource element stored count value, until effective OFDM resource element stored count value reaches the total quantity of effective OFDM resource element.
Preferably, above-mentioned schedule process module 22, the concrete discrete saltus step rule that is used for according to effective OFDM resource element, when choosing successively effective OFDM resource element, after having traveled through the discrete saltus step rule of effective OFDM resource element at every turn, if effectively OFDM resource element stored count value does not reach the total quantity of described effective OFDM resource element, then repeat to travel through the discrete saltus step rule of effective OFDM resource element, until effective OFDM resource element stored count value reaches the total quantity of effective OFDM resource element.
The above-mentioned network equipment and subscriber equipment can form a resource scheduling system, realize that the resource regulating method that adopts the embodiment of the invention to provide carries out resource allocation scheduling, have avoided the time-slot cross between different districts to disturb.Above-mentioned resource regulating method and system, in the diverse networks such as ultrahigh speed WLAN (wireless local area network), no matter whether whether free synchronous requirement and frame format be consistent in the communication system, can by above-mentioned resource randomization distribution mechanism, evade and suppress interference.Also very applicable for communication networks such as WLAN (wireless local area network) or Home eNodeB, be convenient in this way the deployment of AP, also be beneficial to the efficient that improves interface-free resources.
Be described as an example of time-division resource example in above-mentioned description, the Radio Resource that base station or access point are distributed to the user is the randomized OFDM symbol of a group repetition interval, distributes UE0 and UE1 emission randomization by this randomized resource.Even UE0 and UE1 occur overlapping at some OFDM symbols, but other symbol again overlapping probability is lower, thereby the probability that two signal slots in the residential quarter are intersected to be disturbed, signal conflict occurs reduces greatly, has effectively alleviated the strong jamming of Cell Edge User.Same, in other system, also can adopt similar resource distribution mode to reach at frequency domain and reduce the purpose of disturbing, reducing conflict.When indivedual OFDM symbol conflict was arranged once in a while, in conjunction with the error correcting capability of chnnel coding, the mistake that overlapping OFDM symbol occurs also can in time be corrected.
Unless otherwise specific statement, term is such as action and/or the process of processing, determine etc. to refer to one or more processing or computing system or similar devices.Should be understood that the particular order of the step in the disclosed process or the example that level is illustrative methods.Based on design preference, should be appreciated that, the particular order of the step in the process or level can be in the situation that do not break away from protection range of the present disclosure and rearranged.Appended claim to a method has provided the key element of various steps with exemplary order, and is not to be limited to described particular order or level.
In above-mentioned detailed description, various features are combined in the single embodiment together, to simplify the disclosure.This open method should be interpreted as reflecting such intention, that is, and the more feature of feature that the embodiment of theme required for protection need to clearly be stated in each claim.On the contrary, as appending claims reflected, the present invention was in the state that lacks than whole features of disclosed single embodiment.Therefore, appending claims clearly is merged in the detailed description hereby, and wherein every claim is alone as the independent preferred embodiment of the present invention.
Those skilled in the art it is also understood that various illustrative box, module and the algorithm steps in conjunction with the embodiment description of this paper all can be embodied as electronic hardware, computer software or its combination.For the interchangeability between the hardware and software clearly is described, the above has all carried out usually describing around its function to various illustrative parts, frame, module and step.Be embodied as hardware or be embodied as software as for this function, depend on specific application and the design constraint that whole system is applied.Those skilled in the art can be for each application-specific, realizes described function in the mode of accommodation, and still, this realization decision-making should not be construed as and deviates from protection range of the present disclosure.
Description above comprises giving an example of one or more embodiment.Certainly, all possible combination of describing parts or method in order to describe above-described embodiment is impossible, but those of ordinary skills should be realized that, each embodiment can do further combinations and permutations.Therefore, the embodiment that describes herein is intended to contain all the such changes, modifications and variations in the protection range that falls into appended claims.In addition, " comprise " with regard to the term that uses in specification or claims, the mode that contains of this word is similar to term and " comprises ", just as " comprising, " in the claims as link word explain like that.In addition, using any one term " perhaps " in the specification of claims is to represent " non-exclusionism or ".
Claims (25)
1. a resource regulating method is characterized in that, comprising:
To write resource for the total quantity of the discrete saltus step rule of the efficient orthogonal frequency division multiplexing OFDM resource element of the original position of the Resource Block of user equipment allocation, configuration and described effective OFDM resource element and distribute in the indication information, and distribute indication information to send to subscriber equipment described resource; And
Determine effective OFDM resource element according to the discrete saltus step rule of the original position of described Resource Block, effective OFDM resource element and the total quantity of effective OFDM resource element, use described effective OFDM resource element to carry downlink data waiting for transmission.
2. the method for claim 1, it is characterized in that, in described resource distribution indication information, write the original position of described Resource Block in the designated bit position of the first setting quantity, in the designated bit position of the second setting quantity, write the discrete saltus step rule of described effective OFDM resource element, in the designated bit position of the 3rd setting quantity, write the total quantity of described effective OFDM resource element.
3. the method for claim 1 is characterized in that, the saltus step rule of described effective OFDM resource element is the pseudorandom saltus step in the hop period of setting of described effective OFDM resource element.
4. the method for claim 1 is characterized in that, the described process of determining effective OFDM resource element specifically comprises:
Determine the original position of spendable Resource Block;
From the original position of the spendable Resource Block determined, discrete saltus step rule according to described effective OFDM resource element, choose successively effective OFDM resource element, and when choosing effective OFDM resource element, upgrade effective OFDM resource element stored count value, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
5. method as claimed in claim 4, it is characterized in that, discrete saltus step rule according to described effective OFDM resource element, when choosing successively effective OFDM resource element, after having traveled through the discrete saltus step rule of described effective OFDM resource element at every turn, if described effective OFDM resource element stored count value does not reach the total quantity of described effective OFDM resource element, then repeat to travel through the discrete saltus step rule of described effective OFDM resource element, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
6. such as the arbitrary described method of claim 1-5, it is characterized in that, described OFDM resource element is OFDM symbol or OFDM subcarrier or basic OFDM time/frequency source block.
7. a resource regulating method is characterized in that, comprising:
Receive the resource distribution indication information that the network equipment sends;
Distribute original position, the discrete saltus step rule of efficient orthogonal frequency division multiplexing technology OFDM resource element and the total quantity of described effective OFDM resource element of the Resource Block of the described network equipment distribution of carrying in the indication information according to described resource, determine effective OFDM resource element;
Use described effective OFDM resource element to carry upstream data waiting for transmission.
8. method as claimed in claim 7 is characterized in that, parses the original position of the Resource Block of distribution from described resource distribution indication information in the designated bit position of the first setting quantity; And distribute the indication information second to set the discrete saltus step rule of the effective OFDM resource element that parses distribution in the designated bit position of quantity and set the total quantity that parses described effective OFDM resource element of distribution the designated bit position of quantity from the 3rd from resource.
9. method as claimed in claim 7 is characterized in that, the saltus step rule of described effective OFDM resource element is the pseudorandom saltus step in the hop period of setting of described effective OFDM resource element.
10. method as claimed in claim 7 is characterized in that, the described process of determining effective OFDM resource element specifically comprises:
The original position of distributing the Resource Block that distributes in the indication information according to described resource is determined the original position of self spendable Resource Block;
From the original position of the spendable Resource Block determined, discrete saltus step rule according to described effective OFDM resource element, choose successively effective OFDM resource element, and when choosing effective OFDM resource element, upgrade effective OFDM resource element stored count value, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
11. method as claimed in claim 10, it is characterized in that, discrete saltus step rule according to described effective OFDM resource element, when choosing successively effective OFDM resource element, after having traveled through the discrete saltus step rule of described effective OFDM resource element at every turn, if described effective OFDM resource element stored count value does not reach the total quantity of described effective OFDM resource element, then repeat to travel through the discrete saltus step rule of described effective OFDM resource element, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
12. such as the arbitrary described method of claim 7-11, it is characterized in that, described OFDM resource element is OFDM symbol or OFDM subcarrier or basic OFDM time/frequency source block.
13. a resource scheduling device is characterized in that, comprising:
The resource distribution module is used for writing resource for the total quantity of the discrete saltus step rule of the efficient orthogonal frequency division multiplexing technology OFDM resource element of the original position of the Resource Block of user equipment allocation, configuration and described effective OFDM resource element and distributes indication information;
Information sending module is used for distributing indication information to send to subscriber equipment described resource;
The scheduling of resource module, be used for the discrete saltus step rule of the original position according to described Resource Block, effective OFDM resource element and the total quantity of effective OFDM resource element and determine effective OFDM resource element, use described effective OFDM resource element to carry downlink data waiting for transmission.
14. device as claimed in claim 13 is characterized in that, described resource distribution module specifically is used for:
In described resource distribution indication information, write the original position of described Resource Block in the designated bit position of the first setting quantity, in the designated bit position of the second setting quantity, write the discrete saltus step rule of described effective OFDM resource element, in the designated bit position of the 3rd setting quantity, write the total quantity of described effective OFDM resource element.
15. device as claimed in claim 13 is characterized in that, described resource distribution module specifically is used for:
The saltus step rule of described effective OFDM resource element is set to the pseudorandom saltus step in the hop period of setting of described effective OFDM resource element.
16. such as the arbitrary described device of claim 13-15, it is characterized in that, described scheduling of resource module specifically is used for:
According to the original position of the Resource Block that distributes, determine the original position of self spendable Resource Block;
From the original position of the spendable Resource Block determined, discrete saltus step rule according to described effective OFDM resource element, choose successively effective OFDM resource element, and when choosing effective OFDM resource element, upgrade effective OFDM resource element stored count value, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
17. device as claimed in claim 16 is characterized in that, described scheduling of resource module specifically is used for:
Discrete saltus step rule according to described effective OFDM resource element, when choosing successively effective OFDM resource element, after having traveled through the discrete saltus step rule of described effective OFDM resource element at every turn, if described effective OFDM resource element stored count value does not reach the total quantity of described effective OFDM resource element, then repeat to travel through the discrete saltus step rule of described effective OFDM resource element, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
18. a network equipment is characterized in that, comprises arbitrary described resource scheduling device such as claim 13-17.
19. a resource scheduling device is characterized in that, comprising:
Information receiving module is used for receiving the resource distribution indication information that the network equipment sends;
Schedule process module, be used for original position, the discrete saltus step rule of efficient orthogonal frequency division multiplexing technology OFDM resource element and the total quantity of described effective OFDM resource element of the Resource Block that distributes according to the described network equipment that described resource distributes indication information to carry, determine effective OFDM resource element;
Data transmission module is used for using described effective OFDM resource element to carry upstream data waiting for transmission.
20. device as claimed in claim 19 is characterized in that, described schedule process module specifically is used for:
From described resource distribution indication information, parse the original position of the Resource Block of distribution in the designated bit position of the first setting quantity; And distribute the indication information second to set the discrete saltus step rule of the effective OFDM resource element that parses distribution in the designated bit position of quantity and set the total quantity that parses described effective OFDM resource element of distribution the designated bit position of quantity from the 3rd from resource.
21. device as claimed in claim 19 is characterized in that, described schedule process module, the concrete saltus step rule that is used for parsing the pseudorandom saltus step in the hop period of setting of described effective OFDM resource element.
22. such as the arbitrary described device of claim 19-21, it is characterized in that, described schedule process module specifically is used for:
The original position of distributing the Resource Block that distributes in the indication information according to described resource is determined the original position of self spendable Resource Block;
From the original position of the spendable Resource Block determined, discrete saltus step rule according to described effective OFDM resource element, choose successively effective OFDM resource element, and when choosing effective OFDM resource element, upgrade effective OFDM resource element stored count value, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
23. device as claimed in claim 22 is characterized in that, described schedule process module specifically is used for:
Discrete saltus step rule according to described effective OFDM resource element, when choosing successively effective OFDM resource element, after having traveled through the discrete saltus step rule of described effective OFDM resource element at every turn, if described effective OFDM resource element stored count value does not reach the total quantity of described effective OFDM resource element, then repeat to travel through the discrete saltus step rule of described effective OFDM resource element, until effective OFDM resource element stored count value reaches the total quantity of described effective OFDM resource element.
24. a subscriber equipment is characterized in that, comprises arbitrary described resource scheduling device such as claim 19-23.
25. a resource scheduling system is characterized in that, comprises the network equipment as claimed in claim 18 and subscriber equipment as claimed in claim 24.
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| CN2012100719720A CN103313417A (en) | 2012-03-16 | 2012-03-16 | Resource scheduling method, device and system |
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