CN103391177B - Method and device for generating continuous resource allocation signals - Google Patents

Method and device for generating continuous resource allocation signals Download PDF

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CN103391177B
CN103391177B CN201210140240.2A CN201210140240A CN103391177B CN 103391177 B CN103391177 B CN 103391177B CN 201210140240 A CN201210140240 A CN 201210140240A CN 103391177 B CN103391177 B CN 103391177B
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resource allocation
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numerical value
allocation signal
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CN103391177A (en
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曾可
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

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Abstract

The invention discloses a method for generating continuous resource allocation signals. The method includes the steps that a transmitting end determines the value of an NRB parameter according to the total resource amount in a system and determines the value of an LCRBs parameter and an RB start parameter according to the percentage of the number and position of continuous resources allocated to a target user device occupying of in the total resource amount; the transmitting end computes an RIV1 value and an R2V2 value, compares the RIV1 value and the R2V2 value, determines the smaller value of the RIV1 value and the R2V2 value to serve as the value of resource allocation signal value, R1V, and sends the RIV to the user device. According to the scheme, the actual expenditure of the resource allocation signals can be within a preset range, and the continuous resource allocation signals can be more compact and more reasonable.

Description

A kind of generation method and device thereof of continuous resource allocation signal
Technical field
The present invention relates to Radio Spectrum Resource and distribute field, relate in particular to method and the device of acquiring idle radio frequencies from network nodes.
Background technology
In current technology, the mode that physical channel resources is distributed mainly contains two kinds.One is the mode of centralized distribution (localization), and another kind is the mode of discrete distribution (distribution).The mode of centralized distribution is that whole channel is divided into some Resource Block, the white continuous subcarrier composition of each Resource Block.The mode of discrete distribution is by the data allocations of each subscriber equipment o on whole temporal frequency face
One of main candidate scheme of future wireless system technology based on OFDM (OFDMA) technology.This scheme is the different some different subcarriers of user equipment allocation, and these subcarriers allow overlapping but remain mutually orthogonal at frequency domain.A major defect of OFDMA is to have larger peak-to-average force ratio, can cause the reduction greatly of power amplification efficiency.In order to overcome this shortcoming, can inherit again the advantage of OFDMA simultaneously, 3GPP long evolving system (LTE, Long Term Evolution) a kind of single-carrier technology one DFT-s-OFDMA technology of up employing, be user data first by DFT precoder, output valve after DFT conversion is exactly that centralized distribution (localization) is on the subcarrier of OFDMA.Although DFT-s-OFDMA technology is equally more responsive to frequency departure with OFDMA technology, it has lower peak-to-average force ratio than OFDMA technology, and has good effect for opposing multidiameter delay.
For a certain system bandwidth, suppose total N Resource Block, each Resource Block contains 12 subcarriers, and resource allocation information comprises two parameters: the number of the Resource Block of initial resource block logic sequence number and continuous dispensing, represents this two parameters with alphabetical O and P respectively.Corresponding control signal needs to represent all possible (O, P) combination.
Conventional method of the prior art (as CN101405983A) is to use two binary numbers to represent respectively O and P, and required signaling consumption is ceil (log 2nXN), and in fact the combination of (O, P) only has altogether
Figure BDA00001615776500021
plant possibility, in order to reduce the expense of control signal, a kind of resource allocation methods based on tree-like is suggested, and corresponding signaling consumption is
Figure BDA00001615776500022
and the method has provided the generation formula of corresponding resource allocation signal, as shown in Figure 1, specific as follows:
Transmitting terminal is by L cRBs-1 with compare, if L cRBs-1 is greater than
Figure BDA00001615776500024
the numerical value RIV of computational resource allocation signaling, described RIV is N rB(N rB-L cRBs+ 1)+(N rB-1-RB start), otherwise RIV is N rB(L cRBs-1)+RB start; Wherein:
N rBfor the sum of Resource Block in system, L cRBsfor distributing to the number P of continuous resource piece of subscriber equipment, RB startfor distributing to the sequence number O of initial Resource Block in the continuous resource piece of subscriber equipment, RIV represents the binary numeral of resource allocation signal.
But, work as N rBbe 5, L cRBsbe 4, RB startbe 1 o'clock, because
Figure BDA00001615776500025
so utilizing the numerical value RIV of the resource allocation signal that this formula calculates is 16, need to represent with the binary number of 5 bits.And in fact, the expression of this signaling only have in 15 may, can all represent with the binary number of 4 bits.
Documents (CN101132267A) discloses a kind of generation and analytic method and device thereof of continuous resource allocation signal, it has overcome the problems referred to above by the Rule of judgment of changing in above-mentioned prior art conventional method, thereby ensures that the actual overhead of resource allocation signal is
Figure BDA00001615776500026
and make continuous resource allocation signal numerical value compacter and more reasonable.As shown in Figure 2, described scheme is specifically passed through Rule of judgment L cRBs-1 with (N rB/ 2) round up
Figure BDA00001615776500027
change into L cRBs-1 with (N rB/ 2) round downwards
Figure BDA00001615776500028
compare.Additive method step is identical with the step in described conventional method.
But, method in documents CN101132267A is not the method that can reach uniquely described technique effect, exist other to be different from the described scheme of documents CN101132267A completely and exist, can reach equally and ensure that the actual overhead of resource allocation signal is
Figure BDA00001615776500031
and make the compacter and more rational technique effect of continuous resource allocation signal numerical value.
Summary of the invention
The embodiment of the present invention provides a kind of generation method and apparatus of the continuous resource allocation signal that is different from prior art completely, but but can obtain identical effect.
The scheme that the embodiment of the present invention provides is as follows:
A generation method for continuous resource allocation signal, the method comprises:
Transmitting terminal is determined parameter N according to total resources number in system rBnumerical value and take quantity and the location positioning parameter L of total resources according to the continuous resource of distributing to target UE cRBsand RB startnumerical value;
Wherein, N rBthe sum of Resource Block in expression system, L cRBsrepresent the number of the continuous resource piece of distributing to subscriber equipment, RB startthe sequence number of distributing to initial Resource Block in the continuous resource piece of subscriber equipment described in expression, RIV represents the numerical value of the resource allocation signal of subscriber equipment;
Transmitting terminal calculates RIV1 and RIV2, wherein RIV1=N rB(L cRBs-1)+RB start,
RIV2＝N RB(N RB-L CRBs+1)+(N RB-1-RB start)；
Transmitting terminal compares the size of RIV1 and RIV2 value, determines the value of wherein less value as resource allocation signal numerical value RIV;
Transmitting terminal sends to subscriber equipment using the numerical value RIV of described definite resource allocation signal as resource allocation signal.
A generating apparatus for continuous resource allocation signal, this device comprises:
Parameter determining unit, for determining parameter N according to system total resources number rBnumerical value and take quantity and the location positioning parameter L of total resources according to the continuous resource of distributing to target UE cRBsand RB startnumerical value;
Wherein, N rBthe sum of Resource Block in expression system, L cRBsrepresent the number of the continuous resource piece of distributing to subscriber equipment, RB startthe sequence number of distributing to initial Resource Block in the continuous resource piece of subscriber equipment described in expression, RIV represents the numerical value of the resource allocation signal of subscriber equipment;
Computing unit, for calculating RIV1 and RIV2, wherein RIV1=N rB(L cRBs-1)+RB start
RIV2＝N RB(N RB-L CRBs+1)+(N RB-1-RB start)；
Relatively determining unit, for comparing the size of RIV1 and RIV2 value; And definite wherein less value is as the value of resource allocation signal numerical value RIV;
Transmitting element, for sending the numerical value RIV of described definite resource allocation signal to subscriber equipment.
The embodiment of the present invention provides a kind of generation method and apparatus of the continuous resource allocation signal that is different from prior art completely, adopts described scheme, can reach equally and ensure that the actual overhead of resource allocation signal is
Figure BDA00001615776500041
Figure BDA00001615776500042
and make the compacter and more rational technique effect of continuous resource allocation signal numerical value.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below.
Fig. 1 is the generation method of a kind of continuous resource allocation signal in prior art;
Fig. 2 is the generation method of another continuous resource allocation signal in prior art;
Fig. 3 is the generation method of a kind of continuous resource allocation signal of the embodiment of the present invention;
Fig. 4 is the generating apparatus of a kind of continuous resource allocation signal of the embodiment of the present invention;
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Suppose that a kind of communication system has N rBindividual Resource Block, resource allocation information comprises two parameters: distribute to the logic sequence number of initial Resource Block in the number of continuous resource piece of subscriber equipment and these continuous resource pieces, use respectively alphabetical L cRBsand RB startrepresent this two parameters, the generative process of the numerical value RIV of resource allocation signal of the present invention is as follows:
L is determined in base station cRBsand RB starttwo values, determine N according to the situation of bandwidth of cell rBvalue, preferably, N rBmainly get in 6,15,25,50,75 and 100 these 6 numerical value.
Calculate RIV1 and RIV2, wherein RIV1=N rB(L cRBs-1)+RB startand
RIV2＝N RB(N RB-L CRBs+1)+(N RB-1-RB start)；
Relatively the size of RIV1 and RIV2 value, according to comparative result, gets the value of wherein less value as final RIV; With function representation be RIV=Min (RIV1, RIV2).Wherein: N rBfor the sum of Resource Block in system, L cRBsfor distributing to the number of continuous resource piece of subscriber equipment, RB startfor distributing to the sequence number of initial Resource Block in the continuous resource piece of subscriber equipment.
Described binary resource allocation signal numerical value RIV is sent to terminal as resource allocation signal.
By said method, (work as N for example in background technology rBbe 5, L cRBsbe 4, RB startbe 1 o'clock) in, the problem that needs the binary number of 5 bits to represent overcomes, and the RIV value obtaining is compacter and reasonable.
Below, be described in detail with reference to Fig. 3.Fig. 3 describes the generation method of continuous resource allocation signal described in one embodiment of the invention.Detailed process is as follows:
Step 301, transmitting terminal is determined parameter N according to total resources number in system rBnumerical value and take quantity and location positioning parameter and the L of total resources according to the continuous resource of distributing to target UE cRBsand RB startnumerical value;
Step 302, calculates RIV1 and RIV2, wherein RIV1=N rB(L cRBs-1)+RB start,
RIV2＝N RB(N RB-L CRBs+1)+(N RB-1-RB start)；
Step 303, the size of RIV1 and RIV2 numerical value in comparison step 302;
Step 304, determines the value of wherein less value as resource allocation signal RIV, and sends to subscriber equipment.
Be used for carrying out the device of above-mentioned continuous resource allocation signal generation method as shown in Figure 4, be positioned on transmitting terminal, comprise parameter determining unit, computing unit, comparison determining unit and transmitting element, wherein:
Described parameter determining unit, for determining parameter N according to system total resources number rBnumerical value and take quantity and the location positioning parameter L of total resources according to the continuous resource of distributing to target UE cRBsand RB startnumerical value;
Described computing unit, for calculating RIV1 and RIV2, wherein RIV1=N rB(L cRBs-1)+RB start; RIV2=N rB(N rB-L cRBs+ 1)+(N rB-1-RB start);
Described relatively determining unit, for comparing the size of RIV1 and RIV2 numerical value; And definite wherein less value is as the value of resource allocation signal RIV;
Described transmitting element, for sending the numerical value RIV of described definite resource allocation signal to subscriber equipment.
The present invention mainly contains following effect:
With respect to documents CN101132267A, the embodiment of the present invention provides another diverse technical scheme, and it can reach same effect with documents CN101132267A, ensures that the actual overhead of resource allocation signal is and make continuous resource allocation signal numerical value compacter and more reasonable.
For target UE, it receives described RIV value, adopts method and the formula in prior art (as CN101405983A or CN101132267A), described to resolve accordingly, can obtain same L cRBsand RB startthereby, obtain correct Resource Block.Here no longer describe in detail.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.

Claims (4)

1. a generation method for continuous resource allocation signal, is characterized in that, the method comprises:
Transmitting terminal is determined parameter N according to total resources number in system rBnumerical value and take quantity and the location positioning parameter L of total resources according to the continuous resource of distributing to target UE cRBsand RB startnumerical value;
Wherein, N rBthe sum of Resource Block in expression system, L cRBsrepresent the number of the continuous resource piece of distributing to subscriber equipment, RB startthe sequence number of distributing to initial Resource Block in the continuous resource piece of subscriber equipment described in expression, RIV represents the numerical value of the resource allocation signal of subscriber equipment;
Transmitting terminal calculates RIV1 and RIV2, wherein RIV1=N rB(L cRBs-1)+RB start,
RIV2＝N RB(N RB-L CRBs+1)+(N RB-1-RB start)；
Transmitting terminal compares the size of RIV1 and RIV2 value, determines the value of wherein less value as resource allocation signal numerical value RIV;
Transmitting terminal sends to subscriber equipment using the numerical value RIV of described definite resource allocation signal as resource allocation signal.
2. the generation method of a kind of continuous resource allocation signal according to claim 1, is characterized in that, described N rBbe any one in 6,15,25,50,75 and 100 these 6 numerical value.
3. a generating apparatus for continuous resource allocation signal, is characterized in that, this device comprises:
Parameter determining unit, for determining parameter N according to system total resources number rBnumerical value and take quantity and the location positioning parameter L of total resources according to the continuous resource of distributing to target UE cRBsand RB startnumerical value;
Wherein, N rBthe sum of Resource Block in expression system, L cRBsrepresent the number of the continuous resource piece of distributing to subscriber equipment, RB startthe sequence number of distributing to initial Resource Block in the continuous resource piece of subscriber equipment described in expression, RIV represents the numerical value of the resource allocation signal of subscriber equipment;
Computing unit, for calculating RIV1 and RIV2, wherein RIV1=N rB(L cRBs-1)+RB start
RIV2＝N RB(N RB-L CRBs+1)+(N RB-1-RB start)；
Relatively determining unit, for comparing the size of RIV1 and RIV2 value; And definite wherein less value is as the value of resource allocation signal numerical value RIV;
Transmitting element, for sending the numerical value RIV of described definite resource allocation signal to subscriber equipment.
4. the generating apparatus of a kind of continuous resource allocation signal according to claim 3, is characterized in that, described N rBbe any one in 6,15,25,50,75 and 100 these 6 numerical value.
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CN102057735A (en) * 2008-06-19 2011-05-11 Lg电子株式会社 Method for signaling of resource allocation to adjust granularity in cellular multi-carrier system
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CN102057735A (en) * 2008-06-19 2011-05-11 Lg电子株式会社 Method for signaling of resource allocation to adjust granularity in cellular multi-carrier system
CN102113254A (en) * 2008-08-08 2011-06-29 Lg电子株式会社 Method and device for allocating resources in multiple frequency band system
CN101883434A (en) * 2010-06-18 2010-11-10 中兴通讯股份有限公司 Method for allocating channel resources and base station

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