CN101141156A - Power control information transmitting method and system - Google Patents
Power control information transmitting method and system Download PDFInfo
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- CN101141156A CN101141156A CNA2006101287447A CN200610128744A CN101141156A CN 101141156 A CN101141156 A CN 101141156A CN A2006101287447 A CNA2006101287447 A CN A2006101287447A CN 200610128744 A CN200610128744 A CN 200610128744A CN 101141156 A CN101141156 A CN 101141156A
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Abstract
The present invention discloses a power control information transmission method, which mainly comprises steps below: A. Configuring marks for each mobile terminal featuring successful access to uplink CDMA services to make the mobile terminal different from other mobile terminals and transmitting the mark to this mobile terminal; B. Distributing transmission resources to transmit power control information of the mobile terminal; C. Transmitting the power control information to the mobile terminal through the transmission source; D. The mobile terminal acquires its power control information from the transmission resource carrying the power control information according to the mark as above. In addition, the present invention discloses a power control information transmission system based on the method mentioned above. The present invention is suitable for mixed wireless communication systems with downlink OFDMA technology and uplink CDMA technology.
Description
Technical field
The present invention relates to the power control mechanism in the wireless communication system, relate in particular to and be applicable to that descending employing orthogonal frequency division multiplex OFDM A technology, up employing comprise the transmission technology of the power control information in the mixed wireless communications system of code division multiple access CDMA technology.
Background technology
Consider the advantage of OFDMA (OFDM) at present in the draft of 3GPP2 AIE (evolution of eating dishes without rice or wine) normal structure, adopt the mixed mobile communication technology of downlink OFDMA/up CDMA.Wherein, the OFDMA technology is a kind of multi-carrier transmission technology, and this technology can be divided into frequency spectrum many subcarriers, and by distributing different subcarriers to different users, realizes that the multiple access of OFDM inserts.
All adopt the cdma system of CDMA (code division multiple access) technology for up-downgoing, because all insert the shared same frequency of portable terminal of CDMA uplink services, therefore " near-far interference " problem seems particularly outstanding in this system.Described " near-far interference " is the problem that regular meeting occurs in the radio communication.If all portable terminals all adopt identical power emission signal in the sub-district, the signal that nearer apart from the base station so portable terminal the sends signal power that the portable terminal far away apart from the base station send of comparing is eager to excel when arriving the base station, and the result who causes like this is exactly in the base station during this termination collection of letters, the strong signal of power is with the blanket power weak signal, and this has just produced described " near-far interference ".
The power control techniques of cdma system makes the power that transmits when arriving the base station of each portable terminal identical or approaching as far as possible, thereby overcomes " near-far interference " by the transmitting power of each portable terminal in this system of control, makes the system held high quality communication.
Wherein a kind of mode of the power control techniques of cdma system is closed power control.Closed power control is by portable terminal and base station fellowship.In case portable terminal begins to communicate by letter with base station foundation, the closed power control technology promptly plays a role.Reverse channel quality is ceaselessly monitored in the base station, and according to channel quality, by reducing or increase transmitting power to portable terminal transmission power control message command portable terminal.Portable terminal is correspondingly regulated transmitting power according to the power control information that the base station sends.Comprising the requirement portable terminal in the described power control information adjusts the amplitude size of power and adjusts direction.
Cdma system is that the portable terminal of each access service distributes the time slot channel all identical with frequency, and system is by distinguishing the access service of each portable terminal for each described portable terminal distributes PN sign indicating number (Pseudo-Random Noise Code) sequence.Correspondingly, the transmission of power control information also is based on the CDMA mode in this system, and promptly the portable terminal of each access cdma service comes transmission power control information at all corresponding corresponding downstream channel of CDMA up channel.The base station is after described portable terminal distributes up-downgoing PN sign indicating number resource, tell different portable terminals according to different PN sequence area, and the power control information of each portable terminal correspondence sent on each portable terminal by descending CDMA transfer resource, thereby can be on identical temporal frequency transmission power control information simultaneously, described CDMA transfer resource be a sign indicating number branch transfer resource.
Because the AIE system is in up employing CDMA technology, therefore still need the transmitting power of the up CDMA signal of portable terminal is controlled, and since descending in this system no longer be the CDMA mode, therefore can't use different PN sequences to distinguish the power control information of different user.Original power control information transmission means is no longer suitable in the hybrid system of this up-downgoing employing different technologies.
Summary of the invention
In view of this, first main purpose of the present invention is: the transmission method that a kind of power control information is provided, this method can be applicable to descending employing orthogonal frequency division multiplex OFDM A technology, and up employing comprises the mixed wireless communications system of code division multiple access CDMA technology.
Second main purpose of the present invention is: a kind of transmission system of power control information is provided, and this system can be applicable to descending employing orthogonal frequency division multiplex OFDM A technology, and up employing comprises the mixed wireless communications system of code division multiple access CDMA technology.
First aspect according to above-mentioned purpose, the invention provides a kind of transmission method of power control information, be applicable to descending employing orthogonal frequency division multiplex OFDM A technology, up employing comprises the mixed wireless communications system of code division multiple access CDMA technology, and this method may further comprise the steps:
A, the sign that this portable terminal is different from other described portable terminal is set, and described sign is sent to this portable terminal for each up cdma service inserts successful portable terminal;
B, for the transmission each inserted the power control information allocation of downlink OFDMA transfer resource of the portable terminal of up cdma service;
C, power control information is sent to the portable terminal that each has inserted up cdma service by transfer resource;
D, each portable terminal that has inserted up cdma service obtain the power control information that belongs to this portable terminal according to described sign from the transfer resource that carries power control information.
The method that sign is set for each portable terminal that has inserted up cdma service comprises:
The base station is numbered the portable terminal that each has inserted up cdma service, and what draw is numbered the sign that the base station is provided with described portable terminal.
The method of described sign being informed this portable terminal comprises:
Inform described sign and this sign corresponding mobile terminal by layer 3 signaling the base station.
Described transfer resource is the two-dimentional OFDMA transfer resource of time and frequency, comprises one or more child resources, is concentrated continuous between each child resource, or discrete, each child resource is used to transmit a power control information.
The method of described allocation of transmission resources comprises:
Fixing transfer resource is distributed according to the maximum number of the portable terminal of the up cdma service that can hold in the base station; Perhaps dynamic transmission resources is distributed according to the current portable terminal number that has inserted up cdma service in the base station.
Before execution in step C, further comprise:
The base station is according to determining that for each described sign that has inserted the portable terminal setting of up cdma service each described portable terminal and each carry the corresponding relation between the child resource of power control information of this portable terminal, and is placed into respectively in each child resource of correspondence according to the power control information of this corresponding relation with each portable terminal.
The base station is provided with the sign of the child resource of each power control information that carries this portable terminal according to each sign that has inserted the portable terminal of up cdma service, determines the corresponding relation between each described portable terminal and each the described child resource.
Described power control information is comprised by the method that transfer resource sends to the portable terminal that inserts up cdma service:
The transfer resource that power control information will be carried in the base station is distributed on one or more physical frames in the transmission cycle to described portable terminal transmission power control information.
The described transmission cycle is the time interval that the base station sends a power control information, determines the described transmission cycle by setting in advance.
Described step D specifically comprises:
Each portable terminal that has inserted up cdma service determines to carry the transfer resource of power control information according to the position of the transfer resource of precognition, and, from each child resource of this transfer resource, find the power control information that belongs to this portable terminal according to described sign.
When the base station assigns dynamic transmission resources, described method further comprised before execution in step C: the resource information that will comprise the position of the size of transfer resource and/or transfer resource sends to the portable terminal that inserts up cdma service by broadcast resource, each portable terminal that has inserted up cdma service receives described resource information, determines to carry the transfer resource of power control information according to this resource information.
Described step D specifically comprises:
Each described portable terminal finds the power control information that belongs to this portable terminal according to the sign of this portable terminal from each child resource of above-mentioned transfer resource.
Described broadcast resource comprises: previous video frames preamble.
When the portable terminal that inserts up cdma service finishes up cdma service, and the base station assigns dynamic transmission resources, described method further comprises:
If finish maximum or the lowest number in the occupied numbering of being numbered that the portable terminal of up cdma service once took, then the base station does not adjust the numbering of current each described portable terminal; Otherwise the numbering that the base station once took this portable terminal is redistributed to maximum numbering or lowest number corresponding mobile terminal in the current occupied numbering, and described maximum numbering or lowest number are so far idle;
The power control information of the controlled portable terminal of numbering is reapposed in the child resource corresponding with this portable terminal numbering after the adjustment.
Second aspect according to above-mentioned purpose, the invention provides a kind of transmission system of power control information, this system is applicable to descending employing OFDMA, up employing comprises the mixed wireless communications system of CDMA technology, comprise: the dispensing device of power control information and the receiving system of power control information, described power control information dispensing device is provided with the sign that this portable terminal is different from other described portable terminal for each up cdma service inserts successful portable terminal, and described sign is sent to this portable terminal; For transmitting the power control information allocation of downlink OFDMA transfer resource of each portable terminal that has inserted up cdma service; Power control information is sent to the portable terminal that each has inserted up cdma service by transfer resource;
The power control information that described power control information receiving system received power control information sending module sends, and from the transfer resource that carries power control information, obtain the power control information that belongs to this portable terminal according to the sign that receives.
Described power control information dispensing device comprises: transfer resource distribution module, sign are provided with module, identification information sending module, power control information sending module;
Described transfer resource distribution module is the power control information allocation of transmission resources of transmission portable terminal;
Described sign is provided with module and for each portable terminal that has inserted up cdma service the sign that this portable terminal is different from other described portable terminal is set, and this sign is offered described sign sending module;
Described identification information sending module sends to described sign and this sign corresponding mobile terminal by broadcast resource;
Described power control information sending module is sent to the portable terminal that each has inserted up cdma service with power control information by transfer resource.
Described power control information sending module comprises transmission cycle setting module, power control information placement module and sending module;
Described transmission cycle setting module is set the time interval that sends a power control information, and the physical frame of promptly every interval same number sends a power control information; And setting result that should the transmission cycle offers described sending module;
Described power control information placement module is according to the corresponding relation between each child resource in each described portable terminal and the transfer resource, the power control information of each described portable terminal is placed in each corresponding child resource, and triggers described sending module;
Described sending module sends to each portable terminal with power control information by described transfer resource according to the transmission cycle of setting.
Described power control information receiving system comprises the power control information receiver module, identification information receiver module, power control information acquisition module;
Described power control information receiver module receives the power control information that sends from described power control information sending module, and the information that receives is offered the power control information acquisition module;
Described identification information receiver module receives the described sign that described identification information sending module sends; And the numbering that will receive offers the power control information acquisition module;
Described power control information acquisition module finds the power control information that belongs to this portable terminal according to described sign from each child resource.
Described transfer resource distribution module is distributed fixing transfer resource or dynamic transmission resources for the power control information of transmission portable terminal.
When described transfer resource module assigns dynamic transmission resources, described power control information dispensing device also comprises: the resource information sending module;
Described resource information sending module is sent to the portable terminal that all have inserted up cdma service by broadcast resource with the resource information of the transfer resource that is assigned with.
Described power control information receiving system also comprises: resource information receiver module, this module receive the resource information that described resource information sending module sends, and this information is offered described power control information acquisition module.
Described power control information acquisition module finds the power control information that belongs to this portable terminal according to the sign of resource information and this portable terminal from the child resource of correspondence.
The dispensing device of described power control information also comprises the transfer resource recycling module, when the portable terminal that inserts up cdma service finishes up cdma service, this module adjusts the sign of the portable terminal of current up cdma service, the recovery section transfer resource.
Described transfer resource recycling module specifically comprises numbering adjusting module and power control information replacement module;
Described numbering adjusting module judges whether the numbering that the portable terminal that stops up cdma service once took is maximum or lowest number in the occupied numbering, if then the numbering of current each described portable terminal is not adjusted; Otherwise, the numbering that this portable terminal once took is redistributed to maximum numbering or lowest number corresponding mobile terminal in the current occupied numbering; And trigger described power control information replacement module;
Described power control information replacement module reapposes the power control information of controlled portable terminal in the child resource corresponding with this portable terminal numbering after the adjustment.
Described power control information dispensing device is arranged at the base station.
Described power control information receiving system is arranged at the portable terminal that each has inserted up cdma service.
By foregoing as seen, technical scheme provided by the invention realizes the control to mobile terminal emitting power by the transmission resources for transmitting power control information.The present invention also is applicable to the mixed wireless communications system of downlink OFDMA/up CDMA.In addition, the present invention can count allocation of transmission resources according to the portable terminal of current access uplink service, reduces the required transfer resource of transmission power control information to greatest extent; When described portable terminal end uplink service, the present invention fully, rationally utilizes limited transfer resource by reclaiming once occupied transfer resource.
Description of drawings
Fig. 1 is to be transverse axis with time, is the two-dimensional coordinate axle that the longitudinal axis constitutes with the frequency, and the schematic diagram of the described transfer resource of Regional Representative that is surrounded by time and frequency;
Fig. 2 is the embodiment one pairing flow chart that the present invention provides;
Fig. 3 is that the present invention specifically implements the frame structure and the distribution schematic diagram of transfer resource on frame that adopt;
Fig. 4 is that the present invention specifically implements the frame structure and the distribution schematic diagram of transfer resource on frame that adopt;
Fig. 5 is the flow chart of embodiment two correspondences that provide of the present invention;
Fig. 6 is the corresponding relation schematic diagram between the two to obtaining after each portable terminal and each child resource numbering in the concrete enforcement of the present invention;
Fig. 7 is that the mode of employing adjustment current mobile terminal numbering in the concrete enforcement of the present invention realizes the flow chart to the recovery of transfer resource;
Fig. 8 is the transmission system schematic diagram of the power control information of embodiment one correspondence that provides of the present invention;
Fig. 9 is the transmission system schematic diagram of the power control information of embodiment two correspondences that provide of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawings and the specific embodiments the present invention is described in further detail.
For adopting the OFDMA technology on the down direction, and up direction adopts the mixed wireless communications system that comprises CDMA technology, as the AIE system, the portable terminal that has inserted up cdma service in this type systematic is carried out power control, the present invention is thought of as each portable terminal that has inserted up cdma service the sign that this portable terminal is different from other described portable terminal is set, and described sign is sent to this portable terminal; Portable terminal just can find a power control information that belongs to this portable terminal according to the sign of this portable terminal when receiving the power control information that the base station sends from the numerous power control informations that receive like this.In addition, the present invention passes through the power control information allocation of transmission resources for the described portable terminal of transmission, and described power control information is sent to described portable terminal by transfer resource.
Wherein, described transfer resource is the two-dimentional resource that is made of time and frequency, and therefore described transfer resource can be the OFDMA transfer resource.In conjunction with Fig. 1 described transfer resource is described further.
Shown in Figure 1 is to be transverse axis with time, is the two-dimensional coordinate axle that the longitudinal axis constitutes with the frequency, and then described transfer resource is promptly represented in the zone that is surrounded by time and frequency in the reference axis.With Fig. 1 is example, if going out the transfer resource of a among Fig. 1, b, c, d, these 5 zone compositions of e, base station assigns is used for transmission power control information, so these 5 zones be this sub-distribution of base station the described transfer resource of composition in child resource, if need utilize described transmission resources for transmitting power control information, then the base station can be placed a power control information respectively in each child resource; If only need parton resource transmission power control information wherein, then power control information only can be placed in the base station in the parton resource.
The size of the transfer resource shown in Fig. 1 is the area in above-mentioned 5 zones, the position of this transfer resource i.e. this transfer resource time corresponding and frequency original position or final position, the position of transfer resource can be the time in a zone and the original position of frequency as shown in fig. 1, or is that the time in e zone and the final position of frequency are described.The child resource that comprises in the transfer resource can disperse, and as shown in Figure 1, perhaps is the resource of monoblock, and promptly each child resource is concentrated continuous distribution.Can utilize resource information to describe the transfer resource that carries power control information, so described resource information can comprise the size of transfer resource and/or the position of transfer resource.
The present invention is in concrete enforcement, and the mode of base station assigns resource can comprise two kinds: a kind of maximum number that is the base station according to the described portable terminal that can hold, distribute fixing transfer resource, and size is fixing in the described fixing transfer resource, location aware; Perhaps dynamic transmission resources is distributed according to described portable terminal number in the base station, and described dynamic transmission resources can be divided into two kinds of situations again: a kind of is described dynamic transmission resources size dynamic assignment, fixed-site; Another kind is described transfer resource size dynamic assignment, and the position is unfixing.Therefore, according to the difference of the mode of base station assigns transfer resource, respectively the base station is elaborated by the process of transfer resource to current each portable terminal transmission power control information below.
At first embodiments of the invention one are described, i.e. the fixing transfer resource of base station assigns, the perhaps situation of the dynamic transmission resources of base station assigns size dynamic assignment, fixed-site, the process of the base station's transmission power control information of these two kinds of situation correspondences in conjunction with Fig. 2.
Step 201, base station are provided with the sign that this portable terminal is different from other described portable terminal for each portable terminal that has inserted up cdma service;
The base station can send to the power control information of current all described portable terminals each described portable terminal, therefore, as mentioned above, for realizing that described portable terminal is after receiving numerous power control informations, can find the power control information that belongs to this portable terminal, at first need described portable terminal is done sign, to distinguish other described portable terminals in this portable terminal and the system.Be in the prior art, cdma system is distinguished the portable terminal that each has inserted up cdma service by the PN sign indicating number, and the present invention distinguishes each described portable terminal by sign is set for each described portable terminal.
Concrete identification means can for: the base station is numbered each described portable terminal, and what draw is numbered the sign that the base station is provided with described portable terminal; This numbering is:
When up CDMA had the portable terminal of new access, the base station was numbered this portable terminal.
If newly having inserted the portable terminal of up cdma service is the portable terminal of the first connecting system, the base station adopts the numbering of ascending (or descending) that current mobile terminal is numbered, and this first newly-increased portable terminal obtains corresponding being numbered 1.
Setting up departments, the current numbering situation that has inserted the portable terminal of up cdma service is in the system: 1,2,3,5, and also surplus 4,6,7,8 these numberings are still unoccupied.So, the portable terminal of new access is arranged in system, the base station is just still selecting a numbering to distribute to the portable terminal of new access in the unappropriated numbering.The base station can be according to certain rule, as selects numbering minimum in the unappropriated numbering to distribute to the portable terminal of this new access, will number 4 portable terminals of distributing to this new access as the base station.Like this, in whole numberings of 1 to 8, unappropriatedly be numbered 6,7,8, when these numberings treat down to occur in the subsystem the new portable terminal that inserts as numbering to be selected for base station selected.
Each has inserted corresponding numbering of portable terminal of up cdma service in the system so, and with system in other to have inserted the corresponding numbering of the portable terminal of up cdma service inequality.
If the different portable terminal of numbering sign is adopted in the base station, after the portable terminal that has newly inserted up cdma service is finished numbering, numbering is sent to corresponding mobile terminal so by layer 3 signaling.
Described transfer resource comprises the situation of the above-mentioned two kinds of transfer resources of the base station assigns corresponding with this embodiment.Required explanation is, the resource information of the described transfer resource correspondence terminal that relatively moves can be known, comprise: can in base station and portable terminal, set described resource information in advance, perhaps before described portable terminal inserts cdma service, this resource information is sent to described portable terminal by the base station.Above-mentioned dual mode is attainable prior art.Also it should be noted that, though described portable terminal can be predicted described resource information in the mode of this base station assigns transfer resource,, can not know the wherein specifying information of each child resource, comprise size and/or positional information.
Step 204, base station be according to determining that for the described sign of each described portable terminal setting each described portable terminal and each carry the corresponding relation between the child resource of power control information of this portable terminal, and the power control information of each described portable terminal is placed in each child resource of correspondence;
Each described portable terminal also is not enough to allow each described portable terminal know the power control information that belongs to this portable terminal from the transfer resource that may comprise numerous child resources after determining to obtain the transfer resource of power control information.Therefore, among this embodiment of the present invention, be the corresponding relation that exists between the described sign of described portable terminal setting and each child resource according to the base station, in each child resource, place corresponding power control information.Can help described portable terminal to know the power control information that belongs to this portable terminal like this.
In this step, the physical frame of every interval, base station same number sends a power control information, can claim that this process of transmitting is a transmission cycle of power control information, and this transmission cycle can be definite by setting in advance, and should the transmission cycle be modifiable.Wherein, the described transfer resource that the base station will be distributed is distributed on one or more physical frames in a transmission cycle, carries power control information by described transfer resource, and power control information is sent on each described portable terminal.Can understand the method for base station distribution transfer resource on one or more physical frames in conjunction with Fig. 3, Fig. 4.Among these 4 figure, if 3 physical frames in every interval, base station send a power control information, the mode of the described transfer resource of base station distribution can be about to described transfer resource and concentrate on wherein 1 frame of 3 physical frames that are distributed in a transmission cycle correspondence as Fig. 3 or shown in Figure 4 so; Perhaps as shown in Figure 4, described transfer resource is divided equally on described 3 physical frames; Or also can be distributed on wherein 2 frames of described 3 physical frames.
Send power control information by above-mentioned steps among Fig. 2 the base station, and accordingly, following steps receive described power control information in portable terminal place execution graph 2:
If the different described portable terminal of numbering sign is adopted in the base station, each described portable terminal receives the numbering that the base station sends to this portable terminal so.
Step 207, each described portable terminal find the power control information that belongs to this portable terminal according to the sign of oneself and the resource information of precognition.
The numbering that is each described portable terminal basis oneself finds corresponding child resource from this transfer resource, and therefrom obtains the power control information that belongs to this portable terminal.
So far, the process of the embodiment one that provides of the present invention finishes.
In conjunction with Fig. 5 embodiments of the invention two are described then, i.e. base station assigns dynamic transmission resources, and, described transfer resource size dynamic assignment, the process of the transmission power control information of the unfixed situation correspondence in position.
Step 501, identical with above-mentioned steps 201, and also identical at the explanatory content of this step;
Being the base station distributes dynamic transmission resources according to described portable terminal number, and size and position all are that portable terminal according to current C DMA business distributes in the described dynamic transmission resources.
Step 504, base station are sent to all described portable terminals with the resource information of the transfer resource that is assigned with;
Described resource information by broadcast resource, on Fig. 3 or the preamble (previous video frames) shown in Figure 4, is sent to all described portable terminals by the base station.As previously mentioned, the part of drawing oblique line among Fig. 3 or Fig. 4 is promptly represented the transfer resource of base station assigns, carries power control information in these transfer resources.As seen, resource information can not be later than power control information and is sent out.
When described portable terminal receives described ground resource information, just can determine to obtain power control information from this transfer resource.This step can with above-mentioned steps 203 is further explained in the prior art that makes described portable terminal precognition transfer resource mentioned corresponding, but the solution that provides among this embodiment of the present invention is to allow each described portable terminal determine which transfer resource to obtain power control information from by send resource information to described portable terminal.Reality in embodiment one, also can allow described portable terminal determine which transfer resource to obtain power control information from by sending resource information.
Step 506, identical with above-mentioned steps 205, and also identical at the explanatory content of this step; Just the dynamic transmission resources of power control information by base station assigns sends in this step;
Send power control information by above-mentioned steps among Fig. 5 the base station, and accordingly, following steps receive described power control information in portable terminal place execution graph 5:
Described portable terminal determines which transfer resource to obtain power control information from by this step.
Step 509, each described portable terminal be according to separately sign and described resource information, obtains one's own power control information from each child resource of the transfer resource of correspondence.
Can understand the realization of this step referring to Fig. 6, promptly establish each corresponding among Fig. 6 numbering that is designated of each described portable terminal, correspondingly, each child resource with the corresponding relation of each described portable terminal is in the transfer resource: each child resource is identical with the numbering of corresponding described portable terminal.So, described portable terminal obtains to belong to the power control information of this portable terminal from the child resource of correspondence after receiving the numbering of oneself.
So far, the whole transmission course of power control information finishes.
Need to prove, the above-mentioned mode that described portable terminal is numbered just realizes one of specific implementation method that described portable terminal is provided with sign of the present invention, in the practical application, can adopt other identification method to be used to distinguish each described portable terminal.
When the portable terminal that inserts up cdma service disconnects up cdma service, for ease of after the reallocation of transfer resource that the portable terminal of this cdma service was once occupied use, the present invention considers the current sign that has inserted the portable terminal of up cdma service to be adjusted the recovery section transfer resource.As can be known, the processing of reclaiming transfer resource is applicable to that the base station employing distributes the situation of dynamic transmission resources, comprises transfer resource size dynamic assignment, fixed-site or unfixed situation; The situation of distributing fixing transfer resource is adopted in the base station, and the processing of this recovery transfer resource there is no too big meaning.
Illustrate that below in conjunction with Fig. 7 and specific embodiment the present invention reclaims the processing procedure of transfer resource.The mode that adopts following adjustment current mobile terminal to number among the embodiment realizes the recovery to the part transfer resource.
The numbering of this portable terminal is reclaimed in step 702, base station;
If this portable terminal correspondence be numbered 3, this numbering is regained in the base station so, reclaims then that the back is current occupiedly to be numbered 1,2,4,5,6,7; Corresponding, unappropriated being numbered: 3,8,9,10,11.
Both numberings are adjusted in step 704, base station, and the numbering that is about to be recovered is redistributed to maximum and numbered corresponding portable terminal, and so once occupied maximum numbering is idle;
Be numbered 3 as the recovery of above-mentioned base station, current occupied maximum numbering is 7, and the base station will be numbered 3 and be distributed to former numbering 7 corresponding mobile terminal so, and numbering 3 is used again, come out by vacant and number 7, adjust then that the back is current occupiedly to be numbered 1,2,3,5,6; Corresponding, unappropriated being numbered: 7,8,9,10,11.
The power control information that controlled portable terminal will be numbered in step 705, base station reapposes in the child resource corresponding with this portable terminal numbering after the adjustment;
The transfer resource that described portable terminal before described part transfer resource is promptly numbered and is adjusted takies.
Step 706, base station are sent to this portable terminal with the new numbering of controlled described portable terminal by layer 3 signaling; This reclaims the processing procedure of transfer resource.
Step 707, to keep original numbering to take situation constant, if the numbering that promptly is recovered does not so adjust existing numbering greater than current occupied maximum numbering, this reclaims the processing procedure of transfer resource.
Perhaps, when the base station adjusts in occupied numbering, also numbering minimum in the occupied numbering and the numbering that is recovered can be made comparisons, if the former is greater than the latter, it is constant then to keep original numbering to take situation; Otherwise, both are done corresponding adjustment, process can simple and easyly from step shown in Figure 7 be known by inference, repeats no more.
The present invention also provides a kind of transmission system as Fig. 8 or power control information shown in Figure 9, this system designs according to the transmission method of the power control information that the invention described above provides, be applicable to descending employing OFDMA, up employing comprises the mixed wireless communications system of CDMA technology, mainly comprise: the dispensing device of power control information and the receiving system of power control information, described power control information dispensing device is provided with the sign that this portable terminal is different from other described portable terminal for each up cdma service inserts successful portable terminal, and described sign is sent to this portable terminal; For transmitting the power control information allocation of downlink OFDMA transfer resource of each portable terminal that has inserted up cdma service; Power control information is sent to the portable terminal that each has inserted up cdma service by transfer resource;
The transmission system of power control information shown in Figure 8 is designed according to the embodiment one that the invention described above provides, wherein, the transfer resource that base station assigns is fixing, the perhaps dynamic transmission resources of base station assigns size dynamic assignment, fixed-site, the transmission system of described power control information comprise the dispensing device 8a of power control information and the receiving system 8b of power control information.
Wherein, described power control information dispensing device 8a mainly comprises: transfer resource distribution module 8a1, sign are provided with module 8a2, identification information sending module 8a3, power control information sending module 8a4.
Described transfer resource distribution module 8a1 is distributed in described transfer resource on one or more physical frames for the power control information allocation of transmission resources of transmission portable terminal.
Described sign is provided with module 8a2 and for each portable terminal that has inserted up cdma service the sign that this portable terminal is different from other described portable terminal is set, and this sign is offered described sign sending module 8a3.In concrete the enforcement, described sign is provided with module 8a2 can identify each described portable terminal by each described portable terminal is numbered, and will number the result and offer described sign sending module 8a3.Wherein, the corresponding content among the concrete numbering described embodiment one that can provide referring to the invention described above.
Described sign sending module 8a3 sends to described sign and this sign corresponding mobile terminal by broadcast resource, the corresponding portable terminal of sign.In concrete the enforcement, with described sign, the numbering of portable terminal as described is sent to this portable terminal to described sign sending module 8a3 by layer 3 signaling.
Described power control information sending module 8a4 comprises transmission cycle setting module 8a41, power control information placement module 8a42 and sending module 8a43.
Wherein, described transmission cycle setting module 8a41 sends the time interval of a power control information, it is the physical frame of every interval same number, as waiting for every 1 physical frame or each 2 physical frame, send one time power control information, can claim that this process of transmitting is a transmission cycle of power control information; And setting result that should the transmission cycle offers described sending module 8a43;
Described power control information placement module 8a42 is placed on the power control information of each described portable terminal in each corresponding child resource, and triggers described sending module 8a43;
Described sending module 8a43 sends to each portable terminal with power control information by described transfer resource according to the transmission cycle of setting.
Described power control information dispensing device can be arranged at the base station end.
The receiving system 8b of described power control information mainly receives the power control information that sends from described power control information dispensing device 8a, mainly comprise: power control information receiver module 8b1, identification information receiver module 8b2, power control information acquisition module 8b3.
Described power control information receiver module 8b1 receives the power control information that sends from above-mentioned power control information sending module 8a4, and the information that receives is offered power control information acquisition module 8b3.The power control information that receives may comprise a lot of bars.
Described identification information receiver module 8b2 receives the described sign that above-mentioned identification information sending module 8a3 sends.What send as identification information sending module 8a3 is the numbering of this portable terminal correspondence, and so described identification information receiver module 8b2 receives this numbering; And the numbering that will receive offers power control information acquisition module 8b3.
Described power control information acquisition module 8b3 finds the power control information that belongs to this portable terminal according to described sign from each child resource.
The transmission system of power control information shown in Figure 9 is designed according to the embodiment two that the invention described above provides, wherein, the dynamic transmission resources size dynamic assignment of base station assigns, the position is unfixing, and the transmission system of described power control information comprises the dispensing device 9a of power control information and the receiving system 9b of power control information.
Wherein, the dispensing device 9a of described power control information mainly comprises: transfer resource distribution module 9a1, sign are provided with module 9a2, identification information sending module 9a3, power control information sending module 9a4; Wherein, it is basic identical that described sign is provided with the function of each module of the same name among the dispensing device 8a of module 9a2, identification information sending module 9a3, power control information sending module 9a4 and described power control information, and different is:
Described transfer resource distribution module 9a1 distributes dynamic transmission resources according to the portable terminal number of current up CDMA.
Remove among the dispensing device 9a of described power control information and comprise above-mentioned each module, also comprise resource information sending module 9a5, this module is sent to all described portable terminals by broadcast resource with the resource information of the transfer resource that is assigned with.The explanation of relevant described resource information can be found corresponding content hereinbefore, does not repeat them here.Described broadcast resource can comprise the preamble of physical frame.
The receiving system 9b of power control information mainly comprises power control information receiver module 9b1, identification information receiver module 9b2, power control information acquisition module 9b3; Wherein, the function of each module of the same name is basic identical among the receiving system 8b of described power control information receiver module 9b1 and identification information receiver module 9b2 and described power control information.And, correspondingly, in this embodiment, the receiving system 9b of described power control information removes and comprises above-mentioned each module, also comprise resource information receiver module 9b4, this module receives the resource information that above-mentioned resource information sending module 9a5 sends, and this information is offered described power control information acquisition module 9b3.
Described power control information acquisition module 9b3 finds the numbering that belongs to this portable terminal according to the sign of resource information and this portable terminal from the child resource of correspondence.
In system shown in Figure 9, when described portable terminal finishes up cdma service, the dispensing device 9a of described power control information also comprises transfer resource recycling module 9a7, this module is to adjusting the recovery section transfer resource to the current sign that has inserted the portable terminal of up cdma service.
Described transfer resource recycling module 9a7 specifically comprises numbering adjusting module 9a71 and power control information replacement module 9a72:
Described numbering adjusting module 9a71 judges whether the numbering that the portable terminal that stops up cdma service once took is maximum or lowest number in the occupied numbering, if then the numbering of current each described portable terminal is not adjusted; Otherwise, the numbering that this portable terminal once took is redistributed to maximum numbering or lowest number corresponding mobile terminal in the current occupied numbering; And trigger described power control information replacement module 9a72;
Described power control information replacement module 9a72 reapposes the power control information of controlled portable terminal in the child resource corresponding with this portable terminal numbering after the adjustment.
In sum, technical scheme provided by the invention realizes the control to mobile terminal emitting power by the transmission resources for transmitting power control information.The present invention also is applicable to the mixed wireless communications system of downlink OFDMA/up CDMA.In addition, the present invention can count allocation of transmission resources according to the portable terminal of current access uplink service, reduces the required transfer resource of transmission power control information to greatest extent; When described portable terminal end uplink service, the present invention fully, rationally utilizes limited transfer resource by reclaiming once occupied transfer resource.
Claims (26)
1. the transmission method of a power control information is characterized in that, is applicable to descending employing orthogonal frequency division multiplex OFDM A technology, and up employing comprises the mixed wireless communications system of code division multiple access CDMA technology, may further comprise the steps:
A, the sign that this portable terminal is different from other described portable terminal is set, and described sign is sent to this portable terminal for each up cdma service inserts successful portable terminal;
B, for the transmission each inserted the power control information allocation of downlink OFDMA transfer resource of the portable terminal of up cdma service;
C, power control information is sent to the portable terminal that each has inserted up cdma service by transfer resource;
D, each portable terminal that has inserted up cdma service obtain the power control information that belongs to this portable terminal according to described sign from the transfer resource that carries power control information.
2. method according to claim 1 is characterized in that, the method that sign is set for each portable terminal that has inserted up cdma service comprises:
The base station is numbered the portable terminal that each has inserted up cdma service, and what draw is numbered the sign that the base station is provided with described portable terminal.
3. method according to claim 1 and 2 is characterized in that, described sign is informed the method for this portable terminal comprises:
Inform described sign and this sign corresponding mobile terminal by layer 3 signaling the base station.
4. method according to claim 1, it is characterized in that, described transfer resource is the two-dimentional OFDMA transfer resource of time and frequency, comprise one or more child resources, be concentrated continuous between each child resource, or discrete, each child resource is used to transmit a power control information.
5. method according to claim 4 is characterized in that, the method for described allocation of transmission resources comprises:
Fixing transfer resource is distributed according to the maximum number of the portable terminal of the up cdma service that can hold in the base station; Perhaps dynamic transmission resources is distributed according to the current portable terminal number that has inserted up cdma service in the base station.
6. method according to claim 5 is characterized in that, further comprises before execution in step C:
The base station is according to determining that for each described sign that has inserted the portable terminal setting of up cdma service each described portable terminal and each carry the corresponding relation between the child resource of power control information of this portable terminal, and is placed into respectively in each child resource of correspondence according to the power control information of this corresponding relation with each portable terminal.
7. method according to claim 6, it is characterized in that, the base station is provided with the sign of the child resource of each power control information that carries this portable terminal according to each sign that has inserted the portable terminal of up cdma service, determines the corresponding relation between each described portable terminal and each the described child resource.
8. method according to claim 6 is characterized in that, described power control information is comprised by the method that transfer resource sends to the portable terminal that inserts up cdma service:
The transfer resource that power control information will be carried in the base station is distributed on one or more physical frames in the transmission cycle to described portable terminal transmission power control information.
9. method according to claim 8 is characterized in that, the described transmission cycle is the time interval that the base station sends a power control information, determines the described transmission cycle by setting in advance.
10. method according to claim 8 is characterized in that, described step D specifically comprises:
Each portable terminal that has inserted up cdma service determines to carry the transfer resource of power control information according to the position of the transfer resource of precognition, and, from each child resource of this transfer resource, find the power control information that belongs to this portable terminal according to described sign.
11. method according to claim 8, it is characterized in that, when the base station assigns dynamic transmission resources, described method further comprised before execution in step C: the resource information that will comprise the position of the size of transfer resource and/or transfer resource sends to the portable terminal that inserts up cdma service by broadcast resource, each portable terminal that has inserted up cdma service receives described resource information, determines to carry the transfer resource of power control information according to this resource information.
12. method according to claim 11 is characterized in that, described step D specifically comprises:
Each described portable terminal finds the power control information that belongs to this portable terminal according to the sign of this portable terminal from each child resource of above-mentioned transfer resource.
13. method according to claim 11 is characterized in that, described broadcast resource comprises: previous video frames preamble.
14. method according to claim 2 is characterized in that, when the portable terminal of up cdma service finishes up cdma service, and the base station assigns dynamic transmission resources, described method further comprises:
If finish maximum or the lowest number in the occupied numbering of being numbered that the portable terminal of up cdma service once took, then the base station does not adjust the numbering of current each described portable terminal; Otherwise the numbering that the base station once took this portable terminal is redistributed to maximum numbering or lowest number corresponding mobile terminal in the current occupied numbering, and described maximum numbering or lowest number are so far idle;
The power control information of the controlled portable terminal of numbering is reapposed in the child resource corresponding with this portable terminal numbering after the adjustment.
15. the transmission system of a power control information, it is characterized in that, be applicable to descending employing OFDMA, up employing comprises the mixed wireless communications system of CDMA technology, comprise: the dispensing device of power control information and the receiving system of power control information, described power control information dispensing device is provided with the sign that this portable terminal is different from other described portable terminal for each up cdma service inserts successful portable terminal, and described sign is sent to this portable terminal; For transmitting the power control information allocation of downlink OFDMA transfer resource of each portable terminal that has inserted up cdma service; Power control information is sent to the portable terminal that each has inserted up cdma service by transfer resource;
The power control information that described power control information receiving system received power control information sending module sends, and from the transfer resource that carries power control information, obtain the power control information that belongs to this portable terminal according to the sign that receives.
16. system according to claim 15 is characterized in that, described power control information dispensing device comprises: transfer resource distribution module, sign are provided with module, identification information sending module, power control information sending module;
Described transfer resource distribution module is the power control information allocation of transmission resources of transmission portable terminal;
Described sign is provided with module and for each up cdma service inserts successful portable terminal the sign that this portable terminal is different from other described portable terminal is set, and this sign is offered described sign sending module;
Described identification information sending module sends to described sign and this sign corresponding mobile terminal by broadcast resource;
Described power control information sending module is sent to the portable terminal that each has inserted up cdma service with power control information by transfer resource.
17. system according to claim 16 is characterized in that, described power control information sending module comprises transmission cycle setting module, power control information placement module and sending module;
Described transmission cycle setting module is set the time interval that sends a power control information, and the physical frame of promptly every interval same number sends a power control information; And setting result that should the transmission cycle offers described sending module;
Described power control information placement module is according to the corresponding relation between each child resource in each described portable terminal and the transfer resource, the power control information of each described portable terminal is placed in each corresponding child resource, and triggers described sending module;
Described sending module sends to each portable terminal with power control information by described transfer resource according to the transmission cycle of setting.
18. system according to claim 16 is characterized in that, described power control information receiving system comprises the power control information receiver module, identification information receiver module, power control information acquisition module;
Described power control information receiver module receives the power control information that sends from described power control information sending module, and the information that receives is offered the power control information acquisition module;
Described identification information receiver module receives the described sign that described identification information sending module sends; And the numbering that will receive offers the power control information acquisition module;
Described power control information acquisition module finds the power control information that belongs to this portable terminal according to described sign from each child resource.
19. system according to claim 18 is characterized in that, described transfer resource distribution module is distributed fixing transfer resource or dynamic transmission resources for the power control information of transmission portable terminal.
20. system according to claim 19 is characterized in that, when described transfer resource module assigns dynamic transmission resources, described power control information dispensing device also comprises: the resource information sending module;
Described resource information sending module is sent to the portable terminal that all have inserted up cdma service by broadcast resource with the resource information of the transfer resource that is assigned with.
21. system according to claim 20, it is characterized in that, described power control information receiving system also comprises: the resource information receiver module, this module receives the resource information that described resource information sending module sends, and this information is offered described power control information acquisition module.
22. system according to claim 21 is characterized in that, described power control information acquisition module finds the power control information that belongs to this portable terminal according to the sign of resource information and this portable terminal from the child resource of correspondence.
23. according to the described system of one of claim 16 to 22, it is characterized in that, the dispensing device of described power control information also comprises the transfer resource recycling module, when the portable terminal that inserts up cdma service finishes up cdma service, this module adjusts the sign of the portable terminal of current up cdma service, the recovery section transfer resource.
24. system according to claim 23 is characterized in that, described transfer resource recycling module specifically comprises numbering adjusting module and power control information replacement module;
Described numbering adjusting module judges whether the numbering that the portable terminal that stops up cdma service once took is maximum or lowest number in the occupied numbering, if then the numbering of current each described portable terminal is not adjusted; Otherwise, the numbering that this portable terminal once took is redistributed to maximum numbering or lowest number corresponding mobile terminal in the current occupied numbering; And trigger described power control information replacement module;
Described power control information replacement module reapposes the power control information of controlled portable terminal in the child resource corresponding with this portable terminal numbering after the adjustment.
25., it is characterized in that described power control information dispensing device is arranged at the base station according to claim 15 or 16 described systems.
26., it is characterized in that described power control information receiving system is arranged at the portable terminal that each has inserted up cdma service according to claim 15 or 18 described systems.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101287447A CN101141156B (en) | 2006-09-04 | 2006-09-04 | Power control information transmitting method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101287447A CN101141156B (en) | 2006-09-04 | 2006-09-04 | Power control information transmitting method and system |
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| CN101141156A true CN101141156A (en) | 2008-03-12 |
| CN101141156B CN101141156B (en) | 2012-04-25 |
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| CN2006101287447A Expired - Fee Related CN101141156B (en) | 2006-09-04 | 2006-09-04 | Power control information transmitting method and system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101778462A (en) * | 2010-01-08 | 2010-07-14 | 中兴通讯股份有限公司 | Method and device for sending uplink transmission power control information |
| WO2011023057A1 (en) * | 2009-08-31 | 2011-03-03 | 中国移动通信集团公司 | Terminal access method, system and associated devices |
| CN102215473A (en) * | 2010-04-09 | 2011-10-12 | 电信科学技术研究院 | Information interaction method, system and device for hierarchical network system |
| WO2014161175A1 (en) * | 2013-04-03 | 2014-10-09 | Nokia Siemens Networks Oy | Method and apparatus for uplink power control enhancement |
| CN105519207A (en) * | 2014-11-25 | 2016-04-20 | 华为技术有限公司 | Power control device, network side equipment, user equipment and power control method |
| CN103517426B (en) * | 2012-06-19 | 2017-03-29 | 电信科学技术研究院 | A kind of determination method and device of PUCCH resource |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030081538A1 (en) * | 2001-10-18 | 2003-05-01 | Walton Jay R. | Multiple-access hybrid OFDM-CDMA system |
| EP1551115A4 (en) * | 2002-10-07 | 2008-09-17 | Fujitsu Ltd | Transmission power control method for ofdm-cdma system and transmission power controller |
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2006
- 2006-09-04 CN CN2006101287447A patent/CN101141156B/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011023057A1 (en) * | 2009-08-31 | 2011-03-03 | 中国移动通信集团公司 | Terminal access method, system and associated devices |
| CN101998607B (en) * | 2009-08-31 | 2013-07-31 | 中国移动通信集团公司 | Method, system and device for transmitting secondary synchronization signals by introducing uplink time slot to downlink |
| US8811319B2 (en) | 2009-08-31 | 2014-08-19 | China Mobile Communications Corporation | Terminal access method, system and associated devices |
| CN101778462A (en) * | 2010-01-08 | 2010-07-14 | 中兴通讯股份有限公司 | Method and device for sending uplink transmission power control information |
| WO2010149109A1 (en) * | 2010-01-08 | 2010-12-29 | 中兴通讯股份有限公司 | Method and device for transmitting uplink transmission power control information |
| CN101778462B (en) * | 2010-01-08 | 2015-05-20 | 中兴通讯股份有限公司 | Method and device for sending uplink transmission power control information |
| US9066307B2 (en) | 2010-01-08 | 2015-06-23 | Zte Corporation | Method and device for transmitting uplink transmission power control information |
| CN102215473A (en) * | 2010-04-09 | 2011-10-12 | 电信科学技术研究院 | Information interaction method, system and device for hierarchical network system |
| CN102215473B (en) * | 2010-04-09 | 2014-08-13 | 电信科学技术研究院 | Information interaction method, system and device for hierarchical network system |
| CN103517426B (en) * | 2012-06-19 | 2017-03-29 | 电信科学技术研究院 | A kind of determination method and device of PUCCH resource |
| WO2014161175A1 (en) * | 2013-04-03 | 2014-10-09 | Nokia Siemens Networks Oy | Method and apparatus for uplink power control enhancement |
| CN105519207A (en) * | 2014-11-25 | 2016-04-20 | 华为技术有限公司 | Power control device, network side equipment, user equipment and power control method |
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| CN101141156B (en) | 2012-04-25 |
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