CN102065436A - Frequency partition selecting method and device - Google Patents

Frequency partition selecting method and device Download PDF

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Publication number
CN102065436A
CN102065436A CN2009102236268A CN200910223626A CN102065436A CN 102065436 A CN102065436 A CN 102065436A CN 2009102236268 A CN2009102236268 A CN 2009102236268A CN 200910223626 A CN200910223626 A CN 200910223626A CN 102065436 A CN102065436 A CN 102065436A
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equal
time
less
mapping ruler
smaller
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CN102065436B (en
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刘锟
鲁照华
朱登魁
刘向宇
肖华华
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ZTE Corp
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ZTE Corp
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Priority to CN200910223626.8A priority Critical patent/CN102065436B/en
Priority to KR1020127008709A priority patent/KR101702091B1/en
Priority to JP2012538176A priority patent/JP2013511174A/en
Priority to PCT/CN2010/077471 priority patent/WO2011057524A1/en
Publication of CN102065436A publication Critical patent/CN102065436A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a frequency partition selecting method and a frequency partition selecting device. The method comprises the following steps of: recovering a resource metric (RM) from a quantized RM received by a terminal according to a predetermined mapping rule; and selecting the frequency partition by the terminal according to the RM, wherein the mapping rule is represented by the following formulae: when Y is greater than or equal to 0 and less than 4, RM=(Y+delta1)*0.125; when Y is greater than or equal to 4 and less than 12, RM=(Y-4+delta2)*0.3/8+0.5; and when Y is greater than or equal to 12 and less than or equal to 15, RM=(Y-12+delta3)*0.05+0.8, wherein Y is the quantized RM, and the delta1, the delta2 and the delta3 are any real numbers greater than or equal to 0 and less than or equal to 1. By using the method, the RM is recovered from the quantized RM and assists the terminal in selecting the frequency partition.

Description

The system of selection of frequency partition and device
Technical field
The present invention relates to the communications field, in particular to a kind of system of selection and device of frequency partition.
Background technology
In wireless communication system, the base station is meant the equipment that service is provided for terminal, and the base station communicates by Uplink/Downlink and terminal, and descending or forward direction is meant that the base station arrives the direction of terminal, and is up or oppositely be meant the direction of terminal to base station.A plurality of terminals can send data by up link to the base station simultaneously, also can receive data simultaneously from the base station by down link.
Adopt in the data transmission system of base station scheduling control, the scheduling of all resources of system distributes to be undertaken by the base station usually, for example, the resource situation that can use when resource allocation conditions when downlink transfer is carried out in the base station and terminal are carried out uplink etc., these are all distributed by base station scheduling.
At OFDM (Orthogonal Frequency Division Multiplexing, abbreviate OFDM as) in the system, when base station and different terminals carry out downlink data transmission in the same sub-district,, therefore can avoid disturbing in the sub-district because these down links are orthogonal.Yet the down link between the different districts may not be a quadrature, so each terminal all may be subjected to the descending interference from other neighbor cell base station, i.e. presence of intercell interference.
The reduction presence of intercell interference is an important goal of cellular system design to the influence of systematic function, if the serious interference of minizone, then the transmittability of power system capacity, particularly Cell Edge User be can reduce, and then the covering power of system and the performance of terminal influenced.In order to overcome presence of intercell interference, can adopt fractional frequency reuse (Fractional FrequencyReuse abbreviates FFR as) scheme to reduce presence of intercell interference intensity.
Fig. 1 is the schematic diagram according to the transmission power limit situation of the frequency resource allocation mode of the adjacent sectors of correlation technique and each subband, as shown in Figure 1, schematic diagram for the transmission power limit situation of the frequency resource allocation mode of adjacent sectors and each frequency partition (Frequency Partition abbreviates FP as).The cardinal principle of FFR scheme is:
At first, available frequency resources is divided into N FP, N is the integer greater than zero, supposes N=4, is about to available frequency resources and is divided into [FP1, FP2, FP3, FP4].Wherein, FP1, FP2, the frequency re-use factor of FP3 is 3 (to be Reuse3, be also referred to as Reuse1/3), FP1, FP2, frequency resource allocation among the FP3 is given sector in three adjacent sectors, and this frequency resource can not be used in other two sectors or need to adopt the method for the subcarrier transmitting power that limits this frequency resource to use this frequency resource; The FP4 frequency re-use factor is 1 (being Reuse 1), and three adjacent sectors can use this frequency resource.
Then, a resource measurement value (Resource Metric is distributed for each FP in the base station, abbreviate RM as), promptly [RM 1, RM 2, RM 3, and RM 4], and with this resource measurement value notice terminal, each terminal is by measuring spectrum efficiency (the Spectral Efficiency of each FP, abbreviate SE as), and the size of the nSEi (nSEi=SEi/RMi, wherein i is the call number of FP) by calculating each FP, channel quality information (the Channel Quality Information of the individual FP of M (M is more than or equal to 1) of feedback nSEi maximum, abbreviate CQI as) to the base station, resource allocation is carried out according to the CQI situation of the FP of terminal to report in the base station.
At last, the base station self adaptation is adjusted the size of each FP, the transmitting power of each FP sub-carriers and the RM value of each FP, and notifies all terminals in this sector, and then terminal is selected optimum frequency partition.
Signaling consumption when sending RM in order to reduce, produced the quantification manner of a kind of RM, be that the quantification manner that the resource measurement value after the quantification of the frequency partition that sends of base station is adopted is: when RM more than or equal to 0 and less than 0.5 the time, be Y=floor (RM/0.125) to the quantitative formula of RM; When RM more than or equal to 0.5 and less than 0.8 the time, be Y=floor ((RM-0.5) * 8/0.3)+4 to the quantitative formula of RM; When RM more than or equal to 0.8 and smaller or equal to 1 the time, be Y=floor ((RM-0.8)/0.125)+12 to the quantitative formula of RM; Wherein, Y is a RM corresponding quantitative value.RM can be quantified as the information of 4bit through above-mentioned formula, and send to terminal by the base station, when but terminal receives through the RM (being Y) after quantizing, how to recover RM and but do not have description, and then can't carry out the selection of frequency partition according to the RM accessory terminal from Y.
At exist in the correlation technique can't from the resource measurement value after quantizing recover the resource measurement value, and then the problem that can't carry out the selection of frequency partition according to the RM accessory terminal does not propose effective solution at present as yet.
Summary of the invention
At can't be in the correlation technique from the resource measurement value after quantizing recover the resource measurement value, and then can't the present invention be proposed according to the problem that the RM accessory terminal carries out the selection of frequency partition, for this reason, main purpose of the present invention is to provide a kind of system of selection and device of frequency partition, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of system of selection of frequency partition.
System of selection according to frequency partition of the present invention comprises: the resource measurement value RM after the quantification that is received by terminal according to the mapping ruler that sets in advance recovers RM, wherein, mapping ruler by formulate is: when Y more than or equal to 0 and less than 4 the time, RM=(Y+ Δ 1) * 0.125; When Y more than or equal to 4 and less than 12 the time, RM=(Y-4+ Δ 2) * 0.3/8+0.5; When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-12+ Δ 3) * 0.05+0.8; Wherein, Y is the RM after quantizing; Δ 1, Δ 2, Δ 3 are respectively more than or equal to 0 and smaller or equal to any real number of 1; Terminal is carried out the selection of frequency partition according to RM.
Preferably, when Δ 1, Δ 2 and Δ 3 values were 1, mapping ruler by formulate was: when Y more than or equal to 0 and less than 4 the time, RM=(Y+1) * 0.125; When Y more than or equal to 4 and less than 12 the time, RM=(Y-3) * 0.3/8+0.5; When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-11) * 0.05+0.8; Wherein, Y is the RM after quantizing.
Preferably, when Δ 1, Δ 2 and Δ 3 values were 0, mapping ruler by formulate was: when Y more than or equal to 0 and less than 4 the time, RM=Y*0.125; When Y more than or equal to 4 and less than 12 the time, RM=(Y-4) * 0.3/8+0.5; When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-12) * 0.05+0.8; Wherein, Y is the RM after quantizing.
Preferably, when Δ 1, Δ 2 and Δ 3 values were 0.5, mapping ruler by formulate was: when Y more than or equal to 0 and less than 4 the time, RM=(Y+0.5) * 0.125; When Y more than or equal to 4 and less than 12 the time, RM=(Y-3.5) * 0.3/8+0.5; When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-11.5) * 0.05+0.8; Wherein, Y is the RM after quantizing.
Preferably, RM choose Δ 1, Δ 2 and Δ 3 equal values be 0,0.5 or 1 o'clock by any combination of mapping ruler by the RM value that obtains on the corresponding Y; RM choose Δ 1, Δ 2 and Δ 3 for more than or equal to 0 and during smaller or equal to any real number of 1 by any combination of mapping ruler by the RM value that obtains on the corresponding Y; And/or the mapping form that generates according to mapping ruler, wherein, Δ 1, Δ 2 and Δ 3 are more than or equal to 0 and smaller or equal to any real number of 1.
Preferably, the mapping ruler that sets in advance is to notify terminal by relevant signaling with mapping ruler by default configuration, terminal configuration or base station.
To achieve these goals, according to a further aspect in the invention, provide a kind of choice device of frequency partition.
Choice device according to frequency partition of the present invention comprises: recover module, be used for recovering the RM of the frequency partition correspondence after the quantification according to the mapping ruler that sets in advance, wherein, mapping ruler by formulate is: when Y more than or equal to 0 and less than 4 the time, RM=(Y+ Δ 1) * 0.125; When Y more than or equal to 4 and less than 12 the time, RM=(Y-4+ Δ 2) * 0.3/8+0.5; When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-12+ Δ 3) * 0.05+0.8; Wherein, Y is the RM after quantizing; Δ 1, Δ 2, Δ 3 are respectively more than or equal to 0 and smaller or equal to any real number of 1; Select module, be used for carrying out the selection of frequency partition according to the RM that recovers module recovery.
Preferably, when Δ 1, Δ 2 and Δ 3 values were 1, mapping ruler by formulate was: when Y more than or equal to 0 and less than 4 the time, RM=(Y+1) * 0.125; When Y more than or equal to 4 and less than 12 the time, RM=(Y-3) * 0.3/8+0.5; When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-11) * 0.05+0.8; Wherein, Y is a RM corresponding quantitative value.
Preferably, when Δ 1, Δ 2 and Δ 3 values were 0, mapping ruler by formulate was: when Y more than or equal to 0 and less than 4 the time, RM=Y*0.125; When Y more than or equal to 4 and less than 12 the time, RM=(Y-4) * 0.3/8+0.5; When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-12) * 0.05+0.8; Wherein, Y is a RM corresponding quantitative value.
Preferably, when Δ 1, Δ 2 and Δ 3 values were 0.5, mapping ruler by formulate was: when Y more than or equal to 0 and less than 4 the time, RM=(Y+0.5) * 0.125; When Y more than or equal to 4 and less than 12 the time, RM=(Y-3.5) * 0.3/8+0.5; When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-11.5) * 0.05+0.8; Wherein, Y is a RM corresponding quantitative value.
Preferably, RM choose Δ 1, Δ 2 and Δ 3 equal values be 0,0.5 or 1 o'clock by any combination of mapping ruler by the RM value that obtains on the corresponding Y; RM choose Δ 1, Δ 2 and Δ 3 for more than or equal to 0 and during smaller or equal to any real number of 1 by any combination of mapping ruler by the RM value that obtains on the corresponding Y; And/or the mapping form that generates according to mapping ruler, wherein, Δ 1, Δ 2 and Δ 3 are more than or equal to 0 and smaller or equal to any real number of 1.
Preferably, the mapping ruler that sets in advance is to notify terminal by relevant signaling with mapping ruler by default configuration, terminal configuration or terminal configuration or base station.
By the present invention, adopt the resource measurement value RM after the quantification that receives by terminal according to the mapping ruler that sets in advance to recover RM, solved exist in the correlation technique can't be from the RM that recovers of the resource measurement value after quantizing, and then the problem that can't carry out the selection of frequency partition according to the RM accessory terminal, reached the RM that effectively recovers the base station transmission, and then terminal can be carried out the selection of frequency partition according to the RM accessory terminal.
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 schematic diagram according to the transmission power limit situation of the frequency resource allocation mode of the adjacent sectors of correlation technique and each subband;
Fig. 2 is the flow chart according to the system of selection of the frequency partition of the embodiment of the invention;
Fig. 3 is the schematic diagram according to the transmission power limit situation of the frequency resource allocation mode of adjacent sectors among the embodiment 1,2,3 of the embodiment of the invention and each subband;
Fig. 4 is the structured flowchart according to the choice device of the frequency partition of the embodiment of the invention.
Embodiment
Functional overview
Consider exist in the correlation technique can't be from the RM that recovers of the resource measurement value after quantizing, and then the problem that can't carry out the selection of frequency partition according to the RM accessory terminal, the embodiment of the invention provides a kind of selection scheme of frequency partition, RM after being used to recover to quantize, accessory terminal carries out the selection of frequency partition, by recover the RM of the frequency partition correspondence after the quantification according to the mapping ruler that sets in advance, wherein, mapping ruler by formulate is: when Y more than or equal to 0 and less than 4 the time, RM=(Y+ Δ 1) * 0.125; When Y more than or equal to 4 and less than 12 the time, RM=(Y-4+ Δ 2) * 0.3/8+0.5; When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-12+ Δ 3) * 0.05+0.8; Wherein, Y is the quantized value after RM quantizes; Δ 1, Δ 2, Δ 3 are respectively more than or equal to 0 and smaller or equal to any real number of 1.What solved that correlation technique exists can't be from the problem that RM and accessory terminal carry out the selection of frequency partition that recovers of the resource measurement value after quantizing, and reached effectively to recover the RM that the base station sends, and accessory terminal carries out the effect that frequency partition is selected.
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Method embodiment
According to embodiments of the invention, provide a kind of system of selection of frequency partition.
Fig. 2 is the flow chart according to the system of selection of the frequency partition of the embodiment of the invention, and as shown in Figure 2, this method comprises that following step S202 is to step S204:
Step S202, the resource measurement value RM after the quantification that is received by terminal according to the mapping ruler that sets in advance recovers RM, wherein, mapping ruler by formulate is: when Y more than or equal to 0 and less than 4 the time, RM=(Y+ Δ 1) * 0.125; When Y more than or equal to 4 and less than 12 the time, RM=(Y-4+ Δ 2) * 0.3/8+0.5; When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-12+ Δ 3) * 0.05+0.8; Wherein, Y is the quantized value after RM quantizes; Δ 1, Δ 2, Δ 3 are respectively more than or equal to 0 and smaller or equal to any real number of 1.
Particularly, when Δ 1, Δ 2 and Δ 3 values were 1, mapping ruler by formulate was: when Y more than or equal to 0 and less than 4 the time, RM=(Y+1) * 0.125; When Y more than or equal to 4 and less than 12 the time, RM=(Y-3) * 0.3/8+0.5; When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-11) * 0.05+0.8; Wherein, Y is a RM corresponding quantitative value.
Further, when Δ 1, Δ 2 and Δ 3 values were 1, mapping ruler was expressed as by form:
Quantized value Y RM value after the recovery Quantized value Y RM value after the recovery
0 0.125 8 0.6875
1 0.25 9 0.725
2 0.375 10 0.7625
3 0.5 11 0.8
4 0.5375 12 0.85
5 0.575 13 0.9
6 0.6125 14 0.95
7 0.65 15 1
Particularly, when Δ 1, Δ 2 and Δ 3 values were 0, mapping ruler by formulate was: when Y more than or equal to 0 and less than 4 the time, RM=Y*0.125; When Y more than or equal to 4 and less than 12 the time, RM=(Y-4) * 0.3/8+0.5; When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-12) * 0.05+0.8; Wherein, Y is a RM corresponding quantitative value.
Further, when Δ 1, Δ 2 and Δ 3 values were 0, mapping ruler was expressed as by form:
Quantized value Y RM value after the recovery Quantized value Y RM value after the recovery
?0 0 ?8 0.65
?1 0.125 ?9 0.6875
?2 0.25 ?10 0.725
?3 0.375 ?11 0.7625
?4 0.5 ?12 0.8
?5 0.5375 ?13 0.85
?6 0.575 ?14 0.9
?7 0.6125 ?15 0.95
Particularly, when Δ 1, Δ 2 and Δ 3 values were 0.5, mapping ruler by formulate was: when Y more than or equal to 0 and less than 4 the time, RM=(Y+0.5) * 0.125; When Y more than or equal to 4 and less than 12 the time, RM=(Y-3.5) * 0.3/8+0.5; When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-11.5) * 0.05+0.8; Wherein, Y is a RM corresponding quantitative value.
Further, when Δ 1, Δ 2 and Δ 3 values were 0.5, mapping ruler was expressed as by form:
Quantized value Y RM value after the recovery Quantized value Y RM value after the recovery
0 0.0625 ?8 0.66875
1 0.1875 ?9 0.70625
2 0.3125 ?10 0.74375
3 0.4375 ?11 0.78125
4 0.51875 ?12 0.825
5 0.55625 ?13 0.875
6 0.59375 ?14 0.925
7 0.63125 ?15 0.975
Wherein, to choose Δ 1, Δ 2 and Δ 3 equal values be 0,0.5 or 1 o'clock any combination on each quantized value to RM.
Wherein, the mapping ruler that sets in advance is to notify terminal by relevant signaling with mapping ruler by default configuration, terminal configuration or base station.
Step S204, terminal is carried out the selection of frequency partition according to above-mentioned RM.
Be described in detail below in conjunction with the implementation procedure of example the embodiment of the invention.
Embodiment 1:
In the present embodiment, frequency resource is divided into four FP.[FP1 wherein, FP2, FP3] frequency re-use factor be Reuse3, the frequency re-use factor of FP4 is Reuse1, Fig. 3 is the schematic diagram according to the transmission power limit situation of the frequency resource allocation mode of adjacent sectors among the embodiment 1,2,3 of the embodiment of the invention and each subband, as shown in Figure 3.The transmitting power of [FP1, FP2, FP3, FP4] is [P in the sector 1 High, P Low1, P Low2, P Reuse1], the transmitting power of [FP1, FP2, FP3, FP4] is [P in the sector 2 Low2, P High, P Low1, P Reuse1], the transmitting power of [FP1, FP2, FP3, FP4] is [P in the sector 3 Low1, P Low2, P High, P Reuse1].
Be example with sector 1 below, specifically describe the restoration methods of the resource measurement value after quantizing, and carry out the selection of frequency partition, comprise that following step S102 is to step S108 according to the RM accessory terminal after recovering.
In the present embodiment, [FP1, FP2, FP3, FP4] goes up corresponding RM value and is respectively [1.8,0.7,0.5,1], and the base station selection frequency re-use factor is that two lower powered frequency partition of Reuse3 are [FP2, FP3] corresponding RM value [0.7,0.5].
Step S102, the base station quantizes [0.7,0.5] according to following formula, the RM value [9,4] after obtaining quantizing.
When RM more than or equal to 0 and less than 0.5 the time, the quantitative formula of RM is Y=floor (RM/0.125);
When RM more than or equal to 0.5 and less than 0.8 the time, the quantitative formula Y=floor of RM ((RM-0.5) * 8/0.3)+4; When RM more than or equal to 0.8 and smaller or equal to 1 the time, the quantitative formula of RM is Y=floor ((RM-0.8)/0.125)+12;
Wherein, Y is a RM corresponding quantitative value.
Step S104, the RM value [9,4] that the base station obtains after RM is quantized adopts the 4bit coding to send to terminal.
Step S106, after terminal received RM value [9,4] after the quantification that the base station sends, as shown in table 1 according to the mapping form of storage in advance, by searching [9] and [4] corresponding RM initial value, the RM value after the acquisition recovery was respectively [0.725,0.5375].
Table 1
Quantized value Y RM value after the recovery Quantized value Y RM value after the recovery
0 0.125 8 0.6875
1 0.25 9 0.725
2 0.375 10 0.7625
3 0.5 11 0.8
4 0.5375 12 0.85
5 0.575 13 0.9
6 0.6125 14 0.95
7 0.65 15 1
Wherein, not only operable table 1 among the step S106 can also replace with table 1 table 2, and then by searching [9] and [4] corresponding RM initial value, the RM value after obtaining to recover is respectively [0.6875,0.5].
Wherein, not only operable table 1 among the step S106 can also replace with table 1 table 3, and then by searching [9] and [4] corresponding RM initial value, the RM value after obtaining to recover is respectively [0.70625,0.51875].
Table 2
Quantized value Y RM value after the recovery Quantized value Y RM value after the recovery
?0 0 ?8 0.65
?1 0.125 ?9 0.6875
?2 0.25 ?10 0.725
?3 0.375 ?11 0.7625
?4 0.5 ?12 0.8
?5 0.5375 ?13 0.85
?6 0.575 ?14 0.9
?7 0.6125 ?15 0.95
Table 3
Quantized value Y RM value after the recovery Quantized value Y RM value after the recovery
0 0.0625 8 0.66875
1 0.1875 9 0.70625
2 0.3125 10 0.74375
3 0.4375 11 0.78125
4 0.51875 12 0.825
5 0.55625 13 0.875
6 0.59375 14 0.925
7 0.63125 15 0.975
Step S108, terminal is carried out the selection of frequency partition according to above-mentioned RM.
Embodiment 2:
In the present embodiment, frequency resource is divided into four FP.Wherein the frequency re-use factor of [FP1, FP2, FP3] is Reuse3, and the frequency re-use factor of FP4 is Reuse1, as shown in Figure 3.The transmitting power of [FP1, FP2, FP3, FP4] is [P in the sector 1 High, P Low1, P Low2, P Reuse1], the transmitting power of [FP1, FP2, FP3, FP4] is [P in the sector 2 Low2, P High, P Low1, P Reuse1], the transmitting power of [FP1, FP2, FP3, FP4] is [P in the sector 3 Low1, P Low2, P High, P Reuse1].
Be example with sector 1 below, specifically describe the restoration methods of the resource measurement value after quantizing, and carry out the selection of frequency partition, comprise that following step S212 is to step S218 according to the RM accessory terminal after recovering.
In the present embodiment, [FP1, FP2, FP3, FP4] goes up corresponding RM value and is respectively [1.8,0.7,0.5,1], and the base station selection frequency re-use factor is that two lower powered frequency partition of Reuse3 are [FP2, FP3] corresponding RM value [0.7,0.5].
Step S212, the base station quantizes [0.7,0.5] according to following formula, the RM value [9,4] after obtaining quantizing.
When RM more than or equal to 0 and less than 0.5 the time, the quantitative formula of RM is Y=floor (RM/0.125);
When RM more than or equal to 0.5 and less than 0.8 the time, the quantitative formula Y=floor of RM ((RM-0.5) * 8/0.3)+4; When RM more than or equal to 0.8 and smaller or equal to 1 the time, the quantitative formula of RM is Y=floor ((RM-0.8)/0.125)+12;
Wherein, Y is a RM corresponding quantitative value.
Step S214, the RM value [9,4] that the base station obtains after RM is quantized adopts the 4bit coding to send to terminal.
Step S216, as shown below after terminal receives RM value [9,4] after the quantification that the base station sends according to the mapping formula 1 of storage in advance, be respectively [0.725,0.5375] by calculating the RM value that obtains after the recovery.
Formula 1
When Y more than or equal to 0 and less than 4 the time, RM=(Y+1) * 0.125;
When Y more than or equal to 4 and less than 12 the time, RM=(Y-3) * 0.3/8+0.5;
When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-11) * 0.05+0.8;
Wherein, Y is a RM corresponding quantitative value.
Wherein, not only operable formula 1 among the step S206 can also replace with formula 2 with formula 1, then is respectively [0.6875,0.5] by the RM value of calculating after obtaining to recover.
Formula 2
When Y more than or equal to 0 and less than 4 the time, RM=Y*0.125;
When Y more than or equal to 4 and less than 12 the time, RM=(Y-4) * 0.3/8+0.5;
When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-12) * 0.05+0.8;
Wherein, Y is a RM corresponding quantitative value.
Wherein, not only can use formula 1 among the step S206, formula 1 can also be replaced with formula 3, then be respectively [0.70625,0.51875] by the RM value of calculating after obtaining to recover.
Formula 3
When Y more than or equal to 0 and less than 4 the time, RM=(Y+0.5) * 0.125;
When Y more than or equal to 4 and less than 12 the time, RM=(Y-3.5) * 0.3/8+0.5;
When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-11.5) * 0.05+0.8;
Wherein, Y is a RM corresponding quantitative value.
Step S218, terminal is carried out the selection of frequency partition according to above-mentioned RM.
Embodiment 3:
In the present embodiment, frequency resource is divided into four FP.Wherein the frequency re-use factor of [FP1, FP2, FP3] is Reuse3, and the frequency re-use factor of FP4 is Reuse1, as shown in Figure 3.The transmitting power of [FP1, FP2, FP3, FP4] is [P in the sector 1 High, P Low1, P Low2, P Reuse1], the transmitting power of [FP1, FP2, FP3, FP4] is [P in the sector 2 Low2, P High, P Low1, P Reuse1], the transmitting power of [FP1, FP2, FP3, FP4] is [P in the sector 3 Low1, P Low2, P High, P Reuse1].
Be example with sector 1 below, specifically describe the restoration methods of the resource measurement value after quantizing, and carry out the selection of frequency partition, comprise that following step S302 is to step S308 according to the RM accessory terminal after recovering.
In the present embodiment, [FP1, FP2, FP3, FP4] goes up corresponding RM value and is respectively [1.8,0.7,0.5,1], and the base station selection frequency re-use factor is that two lower powered frequency partition of Reuse3 are [FP2, FP3] corresponding RM value [0.7,0.5].
Step S302, the base station quantizes [0.7,0.5] according to following formula, the RM value [9,4] after obtaining quantizing.
When RM more than or equal to 0 and less than 0.5 the time, the quantitative formula of RM is Y=floor (RM/0.125);
When RM more than or equal to 0.5 and less than 0.8 the time, the quantitative formula Y=floor of RM ((RM-0.5) * 8/0.3)+4; When RM more than or equal to 0.8 and smaller or equal to 1 the time, the quantitative formula of RM is Y=floor ((RM-0.8)/0.125)+12;
Wherein, Y is a RM corresponding quantitative value.
Step S304, the RM value [9,4] that the base station obtains after RM is quantized adopts the 4bit coding to send to terminal.
Step S306, as shown below after terminal receives RM value [9,4] after the quantification that the base station sends according to the mapping formula 1 of storage in advance, by calculating the RM value that obtains after the recovery.
Formula 1
When Y more than or equal to 0 and less than 4 the time, RM=(Y+ Δ 1) * 0.125;
When Y more than or equal to 4 and less than 12 the time, RM=(Y-4+ Δ 2) * 0.3/8+0.5;
When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-12+ Δ 3) * 0.05+0.8;
Wherein, Y is a RM corresponding quantitative value; Δ 1, Δ 2, Δ 3 are respectively more than or equal to 0 and smaller or equal to 1 real number.
Δ 1, Δ 2, Δ 3 are pre-determined by standard respectively in this enforcement, suppose Δ 1=0.5, Δ 2=0.5, Δ 3=0.5, and the RM value after then recovering is [0.70625,0.51875].
Step S308, terminal is carried out the selection of frequency partition according to above-mentioned RM.
Device embodiment
According to embodiments of the invention, provide a kind of choice device of frequency partition.
Fig. 4 is the structured flowchart according to the choice device of the frequency partition of the embodiment of the invention, as shown in Figure 4, this device comprises: recover module 42, be used for recovering the RM of the frequency partition correspondence after the quantification according to the mapping ruler that sets in advance, wherein, mapping ruler by formulate is: when Y more than or equal to 0 and less than 4 the time, RM=(Y+ Δ 1) * 0.125; When Y more than or equal to 4 and less than 12 the time, RM=(Y-4+ Δ 2) * 0.3/8+0.5; When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-12+ Δ 3) * 0.05+0.8; Wherein, Y is the quantized value after RM quantizes; Δ 1, Δ 2, Δ 3 are respectively more than or equal to 0 and smaller or equal to any real number of 1; Select module 44, be connected to and recover module 42, be used for finishing the selection of frequency partition according to the RM accessory terminal that recovers module 42 recoveries.
Need to prove that the choice device of the frequency partition of describing among the device embodiment is corresponding to above-mentioned method embodiment, its concrete implementation procedure had been carried out detailed description in method embodiment, do not repeat them here.
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, 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.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, 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 (12)

1. the system of selection of a frequency partition is characterized in that, comprising:
Resource measurement value RM after the quantification that is received by terminal according to the mapping ruler that sets in advance recovers RM, and wherein, mapping ruler by formulate is:
When Y more than or equal to 0 and less than 4 the time, RM=(Y+ Δ 1) * 0.125;
When Y more than or equal to 4 and less than 12 the time, RM=(Y-4+ Δ 2) * 0.3/8+0.5;
When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-12+ Δ 3) * 0.05+0.8;
Wherein, Y is the RM after the described quantification; Δ 1, Δ 2, Δ 3 are respectively more than or equal to 0 and smaller or equal to any real number of 1;
Terminal is carried out the selection of frequency partition according to described RM.
2. according to the method for claim 1, it is characterized in that when Δ 1, Δ 2 and Δ 3 values were 1, described mapping ruler by formulate was:
When Y more than or equal to 0 and less than 4 the time, RM=(Y+1) * 0.125;
When Y more than or equal to 4 and less than 12 the time, RM=(Y-3) * 0.3/8+0.5;
When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-11) * 0.05+0.8;
Wherein, Y is the RM after the described quantification.
3. according to the method for claim 1, it is characterized in that when Δ 1, Δ 2 and Δ 3 values were 0, described mapping ruler by formulate was:
When Y more than or equal to 0 and less than 4 the time, RM=Y*0.125;
When Y more than or equal to 4 and less than 12 the time, RM=(Y-4) * 0.3/8+0.5;
When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-12) * 0.05+0.8;
Wherein, Y is the RM after the described quantification.
4. according to the method for claim 1, it is characterized in that when Δ 1, Δ 2 and Δ 3 values were 0.5, described mapping ruler by formulate was:
When Y more than or equal to 0 and less than 4 the time, RM=(Y+0.5) * 0.125;
When Y more than or equal to 4 and less than 12 the time, RM=(Y-3.5) * 0.3/8+0.5;
When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-11.5) * 0.05+0.8;
Wherein, Y is the RM after the described quantification.
5. according to claim 2,3 or 4 method, it is characterized in that, described RM choose Δ 1, Δ 2 and Δ 3 equal values be 0,0.5 or 1 o'clock by any combination of described mapping ruler by the RM value that obtains on the corresponding Y;
Described RM choose Δ 1, Δ 2 and Δ 3 for more than or equal to 0 and during smaller or equal to any real number of 1 by any combination of described mapping ruler by the RM value that obtains on the corresponding Y;
And/or the mapping form that generates according to described mapping ruler, wherein, Δ 1, Δ 2 and Δ 3 are more than or equal to 0 and smaller or equal to any real number of 1.
6. according to the method for claim 1, it is characterized in that the described mapping ruler that sets in advance is to notify described terminal by relevant signaling with mapping ruler by default configuration, terminal configuration or base station.
7. the choice device of a frequency partition is characterized in that, comprising:
Recover module, the resource measurement value RM after the quantification that is used for being received by terminal according to the mapping ruler that sets in advance recovers RM, and wherein, mapping ruler by formulate is:
When Y more than or equal to 0 and less than 4 the time, RM=(Y+ Δ 1) * 0.125;
When Y more than or equal to 4 and less than 12 the time, RM=(Y-4+ Δ 2) * 0.3/8+0.5;
When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-12+ Δ 3) * 0.05+0.8;
Wherein, Y is the RM after the described quantification; Δ 1, Δ 2, Δ 3 are respectively more than or equal to 0 and smaller or equal to any real number of 1;
Select module, be used for carrying out the selection of frequency partition according to the RM that recovers module recovery.
8. according to the device of claim 7, it is characterized in that when Δ 1, Δ 2 and Δ 3 values were 1, described mapping ruler by formulate was:
When Y more than or equal to 0 and less than 4 the time, RM=(Y+1) * 0.125;
When Y more than or equal to 4 and less than 12 the time, RM=(Y-3) * 0.3/8+0.5;
When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-11) * 0.05+0.8;
Wherein, Y is a RM corresponding quantitative value.
9. according to the device of claim 7, it is characterized in that when Δ 1, Δ 2 and Δ 3 values were 0, described mapping ruler by formulate was:
When Y more than or equal to 0 and less than 4 the time, RM=Y*0.125;
When Y more than or equal to 4 and less than 12 the time, RM=(Y-4) * 0.3/8+0.5;
When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-12) * 0.05+0.8;
Wherein, Y is a RM corresponding quantitative value.
10. according to the device of claim 7, it is characterized in that when Δ 1, Δ 2 and Δ 3 values were 0.5, described mapping ruler by formulate was:
When Y more than or equal to 0 and less than 4 the time, RM=(Y+0.5) * 0.125;
When Y more than or equal to 4 and less than 12 the time, RM=(Y-3.5) * 0.3/8+0.5;
When Y more than or equal to 12 and smaller or equal to 15 the time, RM=(Y-11.5) * 0.05+0.8;
Wherein, Y is a RM corresponding quantitative value.
11. according to Claim 8,9 or 10 method, it is characterized in that, described RM choose Δ 1, Δ 2 and Δ 3 equal values be 0,0.5 or 1 o'clock by any combination of described mapping ruler by the RM value that obtains on the corresponding Y;
Described RM choose Δ 1, Δ 2 and Δ 3 for more than or equal to 0 and during smaller or equal to any real number of 1 by any combination of described mapping ruler by the RM value that obtains on the corresponding Y;
And/or the mapping form that generates according to described mapping ruler, wherein, Δ 1, Δ 2 and Δ 3 are more than or equal to 0 and smaller or equal to any real number of 1.
12. the method according to claim 7 is characterized in that, the described mapping ruler that sets in advance is to notify described terminal by relevant signaling with mapping ruler by default configuration, terminal configuration or terminal configuration or base station.
CN200910223626.8A 2009-11-13 2009-11-13 The system of selection of frequency partition and device Expired - Fee Related CN102065436B (en)

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JP2012538176A JP2013511174A (en) 2009-11-13 2010-09-29 Frequency partition selection method and apparatus
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CN1271238A (en) * 1998-12-18 2000-10-25 北方电信网络公司 CDMA frequency distribution for fixed radio application
CN101449614A (en) * 2006-04-28 2009-06-03 摩托罗拉公司 Method and apparatus for distributed call admission control in a wireless network

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US8625568B2 (en) * 2007-09-21 2014-01-07 Lg Electronics Inc. Method of mapping physical resource to logical resource in wireless communication system

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
CN1271238A (en) * 1998-12-18 2000-10-25 北方电信网络公司 CDMA frequency distribution for fixed radio application
CN101449614A (en) * 2006-04-28 2009-06-03 摩托罗拉公司 Method and apparatus for distributed call admission control in a wireless network

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