CN105025581A - Uplink carrier wave radio resource allocation method - Google Patents

Uplink carrier wave radio resource allocation method Download PDF

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Publication number
CN105025581A
CN105025581A CN201410174202.8A CN201410174202A CN105025581A CN 105025581 A CN105025581 A CN 105025581A CN 201410174202 A CN201410174202 A CN 201410174202A CN 105025581 A CN105025581 A CN 105025581A
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China
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user
pucch
community
rev
base station
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CN201410174202.8A
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韦玮
吕征南
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Potevio Information Technology Co Ltd
Putian Information Technology Co Ltd
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Putian Information Technology Co Ltd
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Priority to CN201410174202.8A priority Critical patent/CN105025581A/en
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Abstract

The present invention discloses an uplink carrier wave radio resource allocation method. The method comprises determining the uplink transmitting efficiency of which users of users in a cell does not interfere with a physical uplink control channel (PUCCH) of adjacent cells, and denoting the above users as a user set M; and during uplink scheduling, allocating physical uplink shared channel (PUSCH) resources, with the same frequency, of the cell and adjacent cell PUCCHs to the users in the set M.

Description

A kind of up-link carrier wireless resource allocation methods
Technical field
The application relates to wireless communication technology field, particularly relates to a kind of up-link carrier wireless resource allocation methods.
Background technology
In LTE wireless communication system, base station is subscriber equipment (UE) the collocating uplink Multi-Carrier Radio Resource in coverage, and this Radio Resource is determined by the one or more combination in time-domain resource, frequency domain resource, code domain resource and power resource.Time-domain resource comprises OFDM (OFDM) symbol, time slot, subframe, frame etc.; Frequency resource comprises subcarrier, carrier wave, frequency band, subband etc.; Code domain resource comprises codewords indexes, code length, cyclic shift etc.; Power resource comprises power, power adjustment commands etc.; Up-link carrier Radio Resource comprises Physical Uplink Control Channel (PUCCH), Physical Random Access Channel (PRACH), interception reference signal (SRS) respectively, and the Radio Resource of Physical Uplink Shared Channel (PUSCH), wherein the resource of PRACH is configured by the high-level signaling of system, and the resource of SRS is by the SRS optimum configurations of community specific (cell-specific).
LTE protocol defines PUCCH resource position, PUCCH is placed on the two ends of available frequency resources in sub-frame of uplink, and middle monoblock frequency spectrum resource is used for transmitting PUSCH.As shown in Figure 1.
The number of each community PUCCH resource quantity depends on the factor such as number of users, overlay environment, volume of business of this community, and therefore the PUCCH resource quantity of different districts can be different.When the PUCCH of neighbor cell takies resource quantity difference, there will be the PUSCH channel of some community and the adjacent area PUCCH channel situation with frequency division cloth, as shown in Figure 2, if now PUSCH channel adopts relatively high power to send, produce comparatively strong jamming by being positioned at adjacent area PUCCH channel frequently, thus affect PUCCH channel performance.
For avoiding PUSCH between neighbor cell to produce comparatively strong jamming to PUCCH, prior art mainly comprises two types:
Scheme one: when the part PUSCH resource of this community and adjacent area PUCCH are positioned at same frequency, these PUSCH resources do not carry out uplink traffic transmission.
Scheme two: when the part PUSCH resource of this community and adjacent area PUCCH are positioned at same frequency, the transmitted power that will be positioned at the uplink service of these PUSCH resources reduces.
All there is following technological deficiency in existing two kinds of allocative decisions:
Scheme one decreases the actual available PUSCH resource quantity in community, thus affects the transmittability of Traffic Channel, and power system capacity is reduced;
Scheme two reduces the transmitted power with the PUSCH of PUCCH same frequency resource by force, and does not carry out rational MRP, is affected making the service transmission performance of user on these PUSCH channels.When Cell Edge User uses these PUSCH resources, its transmitted power is suppressed, and is difficult to the data effectively detecting this user by causing this cell base station.
Summary of the invention
This application provides a kind of up-link carrier wireless resource allocation methods, can effectively suppress PUCCH to be subject to the interference of PUSCH signal.
A kind of up-link carrier wireless resource allocation methods that the embodiment of the present application provides, comprising:
A, determine which user in this community user uplink transmission power can not to adjacent area Physical Uplink Control Channel PUCCH produce interference, these these community users are designated as user and gather M;
B, when uplink scheduling, this community and adjacent area PUCCH are positioned at the part Physical Uplink Shared Channel PUSCH Resourse Distribute of same frequency to gathering the user of M.
Preferably, the described user user gathered in M meets following condition: the PUSCH transmission of this user arrives the power that the PUCCH having the received power of the neighbor base station of same frequency PUCCH resource to be less than these adjacent areas user respectively arrives its own base station.
Preferably, steps A comprises:
A1, calculate the uplink of this community user and arrive the received power P of neighbor base station rev_neighbor(i)=P rev_serving(i)-PPR (i); Wherein, P rev_neighbori () represents that the uplink of this community user i arrives the received power of neighbor base station; PPR (i) represents that the reference signal RS of this community and neighbor base station is poor in the received power of this community user i; P rev_servingi () represents that the uplink of this community user i arrives the received power of this cell base station
The PUCCH of A2, calculating adjacent area user j is transferred to the received power P of neighbor base station described in it rev_PUCCH(j);
A3, base station judge which this community user meets formula P rev_neighbor(i) < P rev_PUCCHj (), is listed in user and is gathered M.
Preferably, the uplink of this community user i arrives the received power P of this cell base station rev_servingi () is according to following formulae discovery:
P Rev_serving(i)＝min{P CMAX,P 0_PUSCH+10log 10M+(α-1)·PL(i)}；
Wherein, P cMAXthe maximum allowable power of high-rise configuration, P 0_PUSCHbe user's open loop transmitted power, M represents the Physical Resource Block PRB number that user i actual allocated uses, and α represents the road loss compensation factor that cell-level configures, and PL represents the circuit loss value of user i.
Preferably, according to formula P rev_PUCCH(j)=min{P cMAX, P 0_NOMINAL_pUCCHdetermine that the PUCCH of adjacent area user j is transferred to the received power P of neighbor base station described in it rev_PUCCHthe minimum value of (j), wherein, P cMAXthe maximum allowable power of high-rise configuration, P o_NOMINAL_PUCCHit is the cell-level parameter of high-rise configuration.
As can be seen from the above technical solutions, this community and adjacent area PUCCH are positioned at the part PUSCH Resourse Distribute of same frequency to producing to the PUCCH of adjacent area the user disturbed, thus can effectively suppress PUCCH to be subject to the interference of PUSCH signal, simultaneously again can fully, effectively utilize system PUSCH resource, do not produce the wasting of resources, and ensure effective transmission of uplink business data.
Accompanying drawing explanation
Fig. 1 is that PUCCH Physical Resource Block maps schematic diagram;
Fig. 2 is adjacent area PUCCH distribution schematic diagram;
The up-link carrier wireless resource allocation methods schematic flow sheet that Fig. 3 provides for the embodiment of the present application;
Fig. 4 is the user scheduling schematic diagram in the embodiment of the present application.
Embodiment
The up-link carrier wireless resource allocation methods that the application provides, its fundamental design idea is: when doing uplink scheduling, select the user that transmitted power is lower, can not produce interference to the PUCCH of adjacent area, the part PUSCH Resourse Distribute this community and adjacent area PUCCH being positioned at same frequency uses to these users.
For making the know-why of technical scheme, feature and technique effect clearly, below in conjunction with specific embodiment, technical scheme is described in detail.
The up-link carrier wireless resource allocation methods flow process that the embodiment of the present application provides as shown in Figure 3, comprises the steps:
Step 301: determine that the uplink transmission power of which user in this community user can not produce interference to adjacent area PUCCH, these these community users are designated as user and gather M.
In another embodiment of the application, determine that user gathers M according to following standard: the user in set M should meet its uplink and arrive the received power that PUCCH transmission that the received power of neighbor base station is less than adjacent area user arrives its own base station.
Step 302: when uplink scheduling, is positioned at by this community and adjacent area PUCCH in the part PUSCH Resourse Distribute of same frequency to the user gathering M.
Figure 4 shows that the user scheduling schematic diagram in the embodiment of the present application.Community A, community B and community C adjacent cell each other.Wherein, the community B frequency allocation of numeral shown in 1 is to the community party B-subscriber meeting following condition: PUSCH transmission arrives the received power of community A and community C and is less than the received power that PUCCH that community party A-subscriber and community C user send arrives its own base station respectively.The community B frequency allocation of numeral shown in 2 is to the community party B-subscriber meeting following condition: PUSCH transmission arrives the received power of community A and is less than the received power that PUCCH that community party A-subscriber sends arrives its own base station; The community C frequency allocation of numeral shown in 3 is to the community C user meeting following condition: PUSCH transmission arrives the received power of community A and is less than the received power that PUCCH that community party A-subscriber sends arrives its own base station.
What user gathered M specifically determines that mode can adopt multiple standards, and the application is not construed as limiting this, as long as meet the condition that can not produce interference to adjacent area PUCCH.Such as, the reference signal power value (RSRP) according to this community of reception of user divides center/edge customer, central user can be included into user and gather M.
In another embodiment of the application, the described user user gathered in M meets following condition: the PUCCH that its PUSCH transmission arrives has the received power of the neighbor base station of same frequency PUCCH resource to be less than these adjacent areas user respectively arrives the power of its own base station.
Another embodiment of the application gives the specific implementation flow process selecting user to gather M, comprises the steps:
Step 301-1: calculate the received power that the uplink of this community user arrives neighbor base station.
Specific formula for calculation is as follows:
P Rev_neighbor(i)＝P Rev_serving(i)-PPR(i) (1)
Wherein:
-P rev_neighbori () represents that the uplink of this community user i arrives the received power of neighbor base station;
-PPR (i) represents that the reference signal (RS) of this community and neighbor base station is poor in the received power of user i, poor for the path loss and decline embodying this community and neighbor base station arrival user i.Use RSRP serving(i) and RSRP neigbour_ki () represents the reference signal power value of this community that user i receives and adjacent cell k respectively, then the expression formula of PPR (i) is as follows:
PPR(i)＝RSRP serving(i)-RSRP neigbour_k(i) (2)
-P rev_servingi () represents that the uplink of user i arrives the received power of this cell base station, according to 3GPP agreement regulation, and P rev_serving(i) be expressed as follows formula:
P Rev_serving(i)＝min{P CMAX,P 0_PUSCH+10log 10M+(α-1)·PL(i)} (3)
Wherein, P cMAXthe maximum allowable power of high-rise configuration, P 0_PUSCHbe user's open loop transmitted power, M represents Physical Resource Block (PRB, the Physical Resource Block) number that user i actual allocated uses, and α represents the road loss compensation factor that cell-level configures, and PL represents the circuit loss value of user i.
Step 301-2: the received power of PUCCH at neighbor base station calculating each user in adjacent area.
P rev_PUCCHj () represents that the PUCCH transmission of adjacent area user j arrives the received power of its own base station.According to 3GPP agreement regulation, the PUCCH transmitted power P of user j pUCCHj () expression formula is as follows:
P PUCCH(j)＝min{P CMAX,P 0_PUCCH+PL+h(n CQI,n HARQ)+Δ F_PUCCH(F)+g(j)}
(4)
-Δ f_PUCCH(F) be the PUCCH format increment size of a relative PUCCH format 1a, minimum is 0;
-P 0_PUCCHthe cell-level parameter P configured by high level o_NOMINAL_PUCCHwith the UE level parameter P configured by high level o_UE_PUCCHsum forms;
-h (n cQI, n hARQ) be a value relevant to PUCCH format, wherein nCQI is relevant with channel quality information bits number, n hARQhARQ bit number, h (n cQI, n hARQ) value is minimum is 0;
-g (j) is the closed-loop power control adjusted value of user j, and minimum is 0.
Therefore, the PUCCH transmission of user j arrives the received power P of its own base station rev_PUCCHj the minimum value of () is:
P Rev_PUCCH(j)＝min{P CMAX,P 0_NOMINAL_pUCCH} (5)
Guarantee that the received power of the uplink arrival neighbor base station of user i is less than the received power of PUCCH in base station of each user in adjacent area.Namely following formula is met:
P Rev_neighbor(i)＜P Rev_PUCCH(j) (6)
In conjunction with formula (1), (3), (5, (6), the received power for the uplink arrival neighbor base station ensureing user i is less than the received power of PUCCH in base station of each user in adjacent area, the following formula of demand fulfillment: min{P cMAX, P 0_PUSCH+ 10log 10m+ (α- 1) PL (i)-PPR (i) < min{P cMAX, P 0_NOMINAL_pUCCH(7)
Step 301-3: base station is according to the P of each user in this community 0_PUSCHvalue, resource allocation conditions, path loss value, parameter alpha Configuration Values, and the information such as the reference signal power value of this community of receiving of user and adjacent cell, in conjunction with adjacent cell P o_NOMINAL_PUCCHvalue, judges which user meets formula (7), is listed in user and gather M.
The foregoing is only the preferred embodiment of the application; not in order to limit the protection range of the application; within all spirit in technical scheme and principle, any amendment made, equivalent replacements, improvement etc., all should be included within scope that the application protects.

Claims (5)

1. a up-link carrier wireless resource allocation methods, is characterized in that, comprising:
A, determine which user in this community user uplink transmission power can not to adjacent area Physical Uplink Control Channel PUCCH produce interference, these these community users are designated as user and gather M;
B, when uplink scheduling, this community and adjacent area PUCCH are positioned at the part Physical Uplink Shared Channel PUSCH Resourse Distribute of same frequency to gathering the user of M.
2. method according to claim 1, it is characterized in that, the described user user gathered in M meets following condition: the PUSCH transmission of this user arrives the power that the PUCCH having the received power of the neighbor base station of same frequency PUCCH resource to be less than these adjacent areas user respectively arrives its own base station.
3. method according to claim 2, is characterized in that, steps A comprises:
A1, calculate the uplink of this community user and arrive the received power P of neighbor base station rev_neighbor(i)=P rev_serving(i)-PPR (i); Wherein, P rev_neighbori () represents that the uplink of this community user i arrives the received power of neighbor base station; PPR (i) represents that the reference signal RS of this community and neighbor base station is poor in the received power of this community user i; P rev_servingi () represents that the uplink of this community user i arrives the received power of this cell base station
The PUCCH of A2, calculating adjacent area user j is transferred to the received power P of neighbor base station described in it rev_PUCCH(j);
A3, base station judge which this community user meets formula P rev_neighbor(i) < P rev_PUCCHj (), is listed in user and is gathered M.
4. method according to claim 3, is characterized in that, the uplink of this community user i arrives the received power P of this cell base station rev_servingi () is according to following formulae discovery:
P Rev_serving(i)＝min{P CMAX,P 0_PUSCH+10log 10M+(α-1)·PL(i)}；
Wherein, P cMAXthe maximum allowable power of high-rise configuration, P 0_PUSCHbe user's open loop transmitted power, M represents the Physical Resource Block PRB number that user i actual allocated uses, and α represents the road loss compensation factor that cell-level configures, and PL represents the circuit loss value of user i.
5. method according to claim 3, is characterized in that, according to formula P rev_PUCCH(j)=min{P cMAX, P 0_NOMINAL_pUCCHdetermine that the PUCCH of adjacent area user j is transferred to the received power P of neighbor base station described in it rev_PUCCHthe minimum value of (j), wherein, P cMAXthe maximum allowable power of high-rise configuration, P o_NOMINAL_PUCCHit is the cell-level parameter of high-rise configuration.
CN201410174202.8A 2014-04-28 2014-04-28 Uplink carrier wave radio resource allocation method Pending CN105025581A (en)

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CN102036251A (en) * 2009-09-25 2011-04-27 鼎桥通信技术有限公司 Method for reducing same frequency interference
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CN102547727A (en) * 2010-12-31 2012-07-04 中国移动通信集团公司 Frequency band distribution method and device
CN102595421A (en) * 2011-01-17 2012-07-18 鼎桥通信技术有限公司 Inter-community interference control method and base station dispatcher
CN102790969A (en) * 2011-05-16 2012-11-21 普天信息技术研究院有限公司 Method for allocating border frequency bands in upstream interference

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102007808A (en) * 2008-04-14 2011-04-06 高通股份有限公司 Allocation of control resources of a femto cell to avoid interference with a macro cell
US20100142467A1 (en) * 2008-12-05 2010-06-10 Nokia Siemens Networks Oy Resource Allocation Technique For Physical Uplink Control Channel Blanking
CN102036251A (en) * 2009-09-25 2011-04-27 鼎桥通信技术有限公司 Method for reducing same frequency interference
CN102158964A (en) * 2010-02-12 2011-08-17 华为技术有限公司 Resource coordination method and device in communication system
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Application publication date: 20151104