CN103298114A - Resource allocation method and device for uplink pilot signals in communication system - Google Patents
Resource allocation method and device for uplink pilot signals in communication system Download PDFInfo
- Publication number
- CN103298114A CN103298114A CN2012100451967A CN201210045196A CN103298114A CN 103298114 A CN103298114 A CN 103298114A CN 2012100451967 A CN2012100451967 A CN 2012100451967A CN 201210045196 A CN201210045196 A CN 201210045196A CN 103298114 A CN103298114 A CN 103298114A
- Authority
- CN
- China
- Prior art keywords
- resource
- user
- base station
- cooperation
- uplink pilot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
The invention discloses a resource allocation method and device for uplink pilot signals, and the resource allocation method and device is applied to a multi-cell communication system. The resource allocation method comprises the steps that cell dedicated allocation information of at least two base stations for the uplink pilot signals is obtained; cooperation dedicated allocation information of the uplink pilot signals is determined according to the cell dedicated allocation information; cooperation resources indicated by the cooperation dedicated allocation information are reserved for users meeting preset conditions and used for transmitting the uplink pilot signals; other resources, except the cooperation resources, in resources indicated by the cell dedicated allocation information of the uplink pilot signals of each of the two base stations are partitioned to users, who do not meet the preset conditions, of the base station and used for transmitting the uplink pilot signals. According to the resource allocation method and device for the uplink pilot signals, the cooperation resources used only by the users meeting the preset conditions are partitioned from communication resources used for transmitting the uplink pilot signals, the cooperation resources are not allowed to be used by other users, and therefore the situation that the users not meeting the preset conditions disturb the uplink pilot signals of the users meeting the preset conditions is avoided.
Description
Technical field
The embodiment of the invention relates to wireless communication technology field, particularly resource allocation method and the device of uplink pilot signal in a kind of communication system.
Background technology
Uplink pilot signal comprise for the demodulated reference signal of base station upstream data demodulation (DeModulation Reference Signal, DMRS) and be used for the detection reference signal that uplink signal-channel quality measures (Sounding Reference Signal, SRS).
In existing systems, the uplink pilot signal transfer resource need be distributed for the user in self coverage cell in the base station, and receives the uplink pilot signal that the user sends and be used for up channel is estimated.Specifically, each residential quarter has the cell-specific resource distribution at the uplink pilot signal of user in this residential quarter separately, and the base station resource that the cell-specific resource distribution of this residential quarter is indicated is distributed to the user of this residential quarter service.Each user utilizes the resource of base station assigns to send uplink pilot signal to the base station.In this case, the base station is by the phase mutual interference between the uplink pilot signal of avoiding these users for the different resource of the distribution of the different user in this residential quarter.But, the resource that the user be used for to send uplink pilot signal in this residential quarter may be used for sending data or other upward signal to the user of neighbor cell by other base station assigns, therefore, the uplink pilot signal of this community user may be subjected to the interference from the user uplink signal in the neighbor cell.Especially when the uplink pilot signal intensity of this community user a little less than, when for example far away with base station distance because the user is positioned at cell edge, the influence of neighbor cell interference is just bigger.
In addition, (Coordinated Multi-Point, CoMP) technology can improve border throughput and the average throughput of residential quarter to multipoint cooperative, therefore is regarded as one of key technology of the follow-up evolution of LTE.The CoMP technology refers to that a plurality of transmission points that the geographical position disperses are same user's service by specific cooperation mode (as joint transmission, Combined Treatment, cooperative scheduling etc.).Wherein, a plurality of transmission points can be the base stations with complete resource management module, baseband processing module and radio frequency unit, or a plurality of radio frequency units of geographical position inequality and antenna (as spaced antenna), or via node etc.When adopting the CoMP technology, a plurality of base stations (hereinafter abbreviating cooperative base station as) of carrying out cooperation transmission need to receive the uplink pilot signal of user's (hereinafter abbreviating collaboration user as) transmission of the CoMP service of enjoying a plurality of base stations, to carry out this collaboration user to the uplink channel estimation of these a plurality of cooperative base station.Also namely, base station need receive the uplink pilot signal that the collaboration user that is positioned at other residential quarter sends.
And the resource allocation mechanism of uplink pilot signal when adopting the CoMP technology not in the existing systems, the user in residential quarter be used for sending uplink pilot signal or upstream data resource may to be used for sending the resource of uplink pilot signal identical with the collaboration user of another residential quarter.When the base station of this residential quarter was the cooperative base station of this collaboration user, cooperative base station need receive the uplink pilot signal of collaboration user and extract some channel parameters and be used for cooperation transmission.At this moment, because collaboration user is far away apart from cooperative base station, its uplink signal strength a little less than, the user's of this residential quarter that cooperative base station receives uplink pilot signal or upstream data. signals can cause stronger interference to the uplink pilot signal of collaboration user, have a negative impact thereby cooperation transmission is carried out in this base station.For example, thereby a plurality of base stations of participation cooperation can utilize detection reference signal (SRS) to obtain the downlink channel condition information (CSIT) of a plurality of residential quarters serve for collaboration user provides better CoMP.For the TDD system, owing to there is channel reciprocity, it is particularly effective to utilize SRS to obtain the method for CSIT of a plurality of residential quarters.The version 10 (R10) of Long Term Evolution (LTE) adopts each residential quarter independently to dispatch the mode of SRS.Because LTE R10 does not support a plurality of residential quarter SRS cooperations, therefore the SRS transmission meeting phase mutual interference of a plurality of residential quarters or disturb with transfer of data, thereby a plurality of residential quarters CSIT quality that causes obtaining according to a plurality of residential quarters SRS channel estimating is badly damaged, and can't satisfy the requirement of CoMP.
Summary of the invention
In view of this, the embodiment of the invention provides resource allocation method and the device of uplink pilot signal in a kind of communication system, reduces the upward signal of neighbor cell to the interference of user's uplink pilot signal generation.
The embodiment of the invention provides a kind of resource allocation method of uplink pilot signal, is applied to multi-cell communication systems, it is characterized in that, comprising:
Obtain in the described communication system at least two base stations at the cell specific configuration information of uplink pilot signal;
Determine the cooperation specific configuration information of uplink pilot signal at least according to the cell specific configuration information of described two base stations;
The cooperation resource reservation of described cooperation specific configuration information indication given meet pre-conditioned user and be used for sending uplink pilot signal, do not meet described pre-conditioned user for the transmission uplink pilot signal with what other resource division except described cooperation resource in the resource of the cell specific configuration information indication of the uplink pilot signal of each base station in described at least two base stations were given this base station.
The embodiment of the invention provides a kind of device for allocating resources of uplink pilot signal, is applied to multi-cell communication systems, comprising:
The configuration acquisition module is used for obtaining at least two base stations, described base station at the cell specific configuration information of uplink pilot signal;
The cooperative arrangement determination module is for the cooperation specific configuration information of determining uplink pilot signal according to the cell specific configuration information of described configuration acquisition module acquisition;
Wherein, the cooperation resource reservation of described cooperation specific configuration information indication is given and is met pre-conditioned user for sending uplink pilot signal.
The embodiment of the invention provides a kind of base station, is positioned at the communication system of many residential quarters, comprising:
The configuration acquisition module is for obtaining this base station and at least one second base station, described base station cell specific configuration information at uplink pilot signal;
The cooperative arrangement determination module is for the cooperation specific configuration information of determining uplink pilot signal according to the cell specific configuration information of configuration acquisition module acquisition;
Resource distribution module, be used for the cooperation resource reservation of described cooperation specific configuration information indication given meeting pre-conditioned user and being used for sending uplink pilot signal, do not meet pre-conditioned user for the transmission uplink pilot signal with what other resource division except described cooperation resource in the resource of the cell specific configuration information indication of this base station were given this base station.
As seen from the above technical solutions, the method and apparatus that the embodiment of the invention provides can mark off the cooperation resource specially at the communication resource that is used for the transmission uplink pilot signal, keeps for the collaboration user in these at least two base station ranges to use.The cooperation resource of reserving does not allow to be assigned to domestic consumer and uses, that is, the domestic consumer in this zone does not allow to use the cooperation resource, thereby avoids common UE to the interference of the uplink pilot signal of cooperation UE.
Description of drawings
The flow chart of the resource allocation method of uplink pilot signal in a kind of communication system that Fig. 1 provides for the embodiment of the invention.
The structural representation of the device for allocating resources of a kind of uplink pilot signal that Fig. 2 provides for the embodiment of the invention.
The flow chart of the resource allocation method of a kind of uplink pilot signal that Fig. 3 provides for the embodiment of the invention.
The composition schematic diagram of a kind of communication system that Fig. 4 provides for the embodiment of the invention.
The structural representation of a kind of base station that Fig. 5 provides for the embodiment of the invention.
The composition schematic diagram of a kind of communication system that Fig. 6 provides for the embodiment of the invention.
The flow chart of the resource allocation method of a kind of uplink pilot signal that Fig. 7 provides for the embodiment of the invention.
Fig. 8 is at reservation and the distribution mechanism schematic diagram of the cooperation resource of SRS signal in the example.
Fig. 9 is the principle schematic that adopts the quadrature overlay code in the example.
Figure 10 is the flow chart of the resource allocation method of uplink pilot signal in the one embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make embodiments of the invention is clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the embodiment of the invention is further described.
Fig. 1 illustrates the flow chart of the resource allocation method of uplink pilot signal in a kind of communication system that the embodiment of the invention provides.As shown in Figure 1, this method mainly comprises the following steps.
Said method marks off the cooperation resource specially at the communication resource that is used for the transmission uplink pilot signal, keeps for the pre-conditioned user that meets in these at least two base station ranges to use.The cooperation resource of reserving does not allow to be assigned to and does not meet pre-conditioned user's use, thereby avoids the phase mutual interference between these users.For example, when this method is applied to support in coordinate multipoint (CoMP) the transmission wireless communication system, comprise in this communication system and can provide CoMP serving base station for collaboration user, it is described that to meet pre-conditioned user be collaboration user, it is described that not meet pre-conditioned user be non-collaboration user (hereinafter abbreviating domestic consumer as), domestic consumer in these at least two base station ranges does not allow to use the cooperation resource, thereby avoids common UE to the interference of the uplink pilot signal of cooperation UE; When this method is applied to common multi-cell communication systems, describedly meet the user that intensity that pre-conditioned user can be its upward signal of receiving of described base station or Signal to Interference plus Noise Ratio (SINR) are lower than default thresholding, uplink signal strength in these at least two base station ranges or the higher user of SINR do not allow to use the cooperation resource, thereby avoid the uplink pilot signal of the UE of the good difference in signal strength of UE of signal strength signal intensity to produce interference.
Wherein, at least two above-mentioned base stations can be the base stations that cooperation relation is arranged arbitrarily, adjacent base station for example, or belong to base station among the same cooperation group (cluster) etc.
Cell specific configuration information is the resource allocation information that is exclusively used in the transmission uplink pilot signal for the user preset in the residential quarter, and can there be different cell specific configuration information different residential quarters.
Described cooperation specific configuration information is used to indicate bandwidth and the position on time domain and frequency domain of described cooperation resource.Described cooperation resource can be time domain and/or the appearance of frequency domain intercycle, can be a frequency range of concentrating on frequency domain, also can be the set of some frequency ranges of distribution.
Said method can be finished by a device that is independent of the base station, also can be realized by the base station, below illustrates respectively.
The device for allocating resources of a kind of uplink pilot signal that Fig. 2 provides for the embodiment of the invention.As shown in Figure 2, this device 200 mainly comprises:
Cooperative arrangement determination module 202 is for the cooperation specific configuration information of determining uplink pilot signal according to the cell specific configuration information of described configuration acquisition module acquisition; Wherein, the cooperation resource reservation of described cooperation specific configuration information indication is given and is met pre-conditioned user for sending uplink pilot signal.
Above-mentioned configuration acquisition module 201 and cooperative arrangement determination module 202 only are to divide the logic module that obtains by function, can be realized by same module during realization, also can divide by a plurality of submodules and realize.Below only list and the present invention program's function associated module, in fact, this device can also comprise other module.For example, this device can also comprise: CPU (CPU) 203, memory module 204, communication module 205, internal bus 206 etc.The function of above-mentioned configuration acquisition module 201 and cooperative arrangement determination module 202 may need other module to assist when realizing, for example need CPU 203 to carry out data operation, memory module 204 is used for storing each cell specific configuration information and definite cooperation specific configuration information, communication module 206 is used for carrying out information interaction etc. with described at least two base stations, for the sake of brevity, these functions all are described as being finished by configuration acquisition module 201 and cooperative arrangement determination module 202.206 information interaction passage that each intermodule is provided of internal bus can be buses that connects each module, also can be made up of many circuits of above-mentioned each intermodule.
Said apparatus can be applied to support the communication system of CoMP, comprise in this communication system and can provide CoMP serving base station for collaboration user, then describedly meet pre-conditioned user for described collaboration user, describedly do not meet described pre-conditioned user and be domestic consumer.Said apparatus also can be applied to common multi-cell communication systems, then describedly meets the user that intensity that pre-conditioned user can be its upward signal of receiving of described base station or SINR are lower than default thresholding.
Said apparatus can be separate equipment in the above-mentioned communication system, also can be the module in existing device in the above-mentioned communication system.In the latter event, then above-mentioned module 201-206 can be newly-installed module, also can be to utilize existing module realization in the existing device.
This device can carry out information interaction by communication module 206 and the base station in this communication system.This information interaction can be directly, also can carry out transfer by miscellaneous equipment or network.Communicating to connect of this device and base station can be wired connection, also can be wireless connections, can adopt existing communication protocol, also can adopt custom-designed communication protocol.
This device obtains described at least two base stations, and to need cell specific configuration information can be to receive the base station initiatively or should ask to send to this device, perhaps by this device from each base station or a specific equipment read.
The flow chart of the resource allocation method of a kind of uplink pilot signal that Fig. 3 provides for the embodiment of the invention.This method is applied in the communication system shown in Figure 4 400.This communication system 400 comprises base station 401-40n, user terminal 411-41n, and device for allocating resources 430, i.e. device for allocating resources 200 shown in Figure 2.As shown in Figure 3, this method mainly comprises the following steps.
In the step 302, the cooperative arrangement determination module 202 of device 200 can be determined described cooperation resource according to predetermined strategy according to the resource that the cell specific configuration information of described at least two base stations is indicated.For example, can for the resource of the cell specific configuration information of described at least two base stations indication get occur simultaneously or union as the cooperation resource, and generate the cooperation specific configuration information that is used to indicate described cooperation resource; Perhaps, for the resource that the cell specific configuration information of described at least two base stations is indicated is got common factor or union, selecting from default resource collection has one or more resource collections of common factor as the resource that cooperates with described common factor or union, and generate the cooperation specific configuration information be used to indicate described cooperation resource, etc.
In the step 302, the cooperative arrangement determination module 202 of device 200 can be determined the bandwidth of cooperation resource according to the number of collaboration user and domestic consumer.For example, can mark off the bandwidth of same ratio as the total amount of bandwidth of described cooperate resource with the ratio of total number of users from the total bandwidth that is used for the transmission uplink pilot signal with the ratio of the number of domestic consumer or the number of collaboration user according to the number of the collaboration user in described at least two base station ranges, ratio as collaboration user number and domestic consumer's number is 1: 5 o'clock, the ratio that is collaboration user number and total number of users is 1: 6, then can mark off bandwidth resources for 1/6 size of the total bandwidth that sends uplink pilot signal as the cooperation resource; Perhaps, when the ratio of the number of the ratio of the number of the number of the number of collaboration user or collaboration user and domestic consumer or collaboration user and total number of users during greater than preset threshold value, with the total amount of bandwidth of the default bandwidth corresponding with described threshold value as described cooperation resource, for example, can preset the corresponding relation of several threshold values and bandwidth, determine the bandwidth of the cooperation resource of correspondence then according to actual collaboration user number and/or total number of users.Can also adopt other strategy, for example, can set the priority relationship of collaboration user and domestic consumer, the preferential communication quality that ensures collaboration user or domestic consumer of expression, at this moment, can distribute more bandwidth resources for enjoying preferential user group according to priority relationship.For example, when system arranged the communication quality of preferential guarantee collaboration user, device 200 can be determined the bandwidth of cooperation resource earlier according to said method, and then increased the bandwidth of preset ratio on the basis of the amount of bandwidth that obtains as the total bandwidth of cooperation resource.
Like this, base station 401-40n just can distribute to collaboration user with the cooperation resource that conditioning unit 430 is divided and be used for sending uplink pilot signal, and do not allow domestic consumer to use this cooperation resource, thereby avoided the upward signal of domestic consumer to the interference of the uplink pilot signal of collaboration user.
Among this embodiment, the base station 401-40n in this communication system 400 supports CoMP.Those skilled in the art only need carry out simple accommodation to top scheme just can be applied to said method other system, for example common multi-cell system.
The described method of Fig. 1 can also be realized by the base station.The structural representation of a kind of base station that Fig. 5 provides for the embodiment of the invention.As shown in Figure 5, base station 500 mainly comprises:
Cooperative arrangement determination module 502 is for the cooperation specific configuration information of determining uplink pilot signal according to the cell specific configuration information of configuration acquisition module acquisition;
Above-mentioned configuration acquisition module 501, cooperative arrangement determination module 502 and resource distribution module 510 only are to divide the logic module that obtains by function, can be realized by same module during realization, also can divide by a plurality of submodules and realize.Below only list and the present invention program's function associated module, in fact, this device can also comprise other module.For example, this device can also comprise: CPU (CPU) 503, memory module 504, communication module 505, internal bus 506, radio receiving transmitting module 507 etc.As previously mentioned, above-mentioned module 501,502 and 510 function may need other module to assist when realizing, for the sake of brevity, all are described as being finished by above-mentioned module 501,502 and 510.506 information interaction passage that each intermodule is provided of internal bus can be buses that connects each module, also can be made up of many circuits of above-mentioned each intermodule.
Above-mentioned module 501-506 can be newly-installed module in the base station, also can be to utilize the existing module in base station to realize.
Can carry out information interaction by communication module 506 separately between the base station.This information interaction can be directly, also can carry out transfer by miscellaneous equipment or network; Can pass through wired connection, also adopt wireless connections.
The cell specific configuration information that the base station obtains other base station can be to receive other base station initiatively or should ask to send to this device, perhaps by this device from each base station or a specific equipment read.
The flow chart of the resource allocation method of a kind of uplink pilot signal that Fig. 7 provides for the embodiment of the invention.This method is applied to communication system 600 as shown in Figure 6.Comprise base station 601-60n and user terminal 611-61n in this communication system 600.Wherein base station 601-60n adopts base station 500 shown in Figure 5.As shown in Figure 7, this method mainly comprises the following steps.
In the step 702, the method for cooperative arrangement determination module 202 employings of device 200 is identical in the method that the cooperative arrangement determination module of base station 500 502 is determined the cooperation resources and the abovementioned steps 302, repeats no more here.
In the said method, first base station and described at least one second base station can be that the base station of cooperation relation or any several adjacent base stations etc. are arranged, and for example belong to base station among the same cluster etc.According to configuration in advance, the mutual cell specific configuration information separately in the base station among the cluster for example, receives the cell specific configuration information of other base station among the cluster and self cell specific configuration information is offered other base station among the cluster.
Make a strategic decision voluntarily and obtain the resource that cooperates in each base station, if configured strategy is identical, the cooperation resource that different base stations is determined will be identical.Perhaps, can be pre-configured among each cluster a dominant base of being responsible for determining the cooperation resource, other base station offers this dominant base with the cell specific configuration information of self, and generation was used to indicate the cooperation specific configuration information of described cooperation resource and offers other base station after dominant base was determined the cooperation resource.Again or, alternative cooperation resource can be determined according to certain pre-configured strategy in each base station, the information of the mutual alternative cooperation resource of determining separately in each base station consults to determine the final cooperation resource that adopts of this cluster then.The present invention determines that to a plurality of base stations the mode of cooperation resource does not limit.
Among this embodiment, the base station 601-60n in this communication system 600 supports CoMP.Those skilled in the art only need carry out simple accommodation to top scheme just can be applied to said method other system, for example common multi-cell system.
Adopt the scheme of the various embodiments described above, the base station just can obtain the specific configuration information that cooperates, and from the cooperation resource of cooperation specific configuration information indication, select the pre-conditioned user that meets that adequate resources distributes in self coverage and be used for sending uplink pilot signal, and do not allow not meet pre-conditioned user and use described cooperation resource, thereby can avoid a kind of user in back to preceding a kind of user's interference.
The base station is to meet pre-conditioned user to divide and be used in the resource that sends uplink pilot signal and can comprise according to the cooperation resource of cooperation specific configuration information indication: the base station is selected the described first pre-conditioned user that meets that first resource distributes in this base station range and is used for sending uplink pilot signal from described cooperation resource; Choosing resource in the resource from the resource of the cell specific configuration information of this residential quarter indication except described cooperation resource distributes to and does not meet the described second pre-conditioned user for the transmission uplink pilot signal.Wherein, the base station can not be distributed to the cooperation resource and not meet pre-conditioned user, does not meet pre-conditioned user and does not allow to use the cooperation resource.This step can be carried out by the resource distribution module in the base station.
To be used for sending second resource of uplink pilot signal different for the second pre-conditioned user that meets in first resource and this base station and described second base station range.For example, first resource can adopt different frequencies or frequency range or different subcarrier or subcarrier set etc. with second resource.
The base station can generate the user's specific configuration information that is used to indicate this resource and send to collaboration user after having determined the resource that is used for the transmission uplink pilot signal of distributing for the user.
Base station concrete resource that adopts of definite certain user from the cooperation resource can be carried out the division in time domain, frequency domain, sign indicating number territory by the resource that will cooperate, resource after dividing distributed to meet pre-conditioned different user as above-mentioned first resource, thereby realize that time-division, frequency division, sign indicating number between the collaboration user divide.Fig. 8 illustrates in the example reservation and the distribution mechanism schematic diagram at the cooperation resource of SRS signal.
For example, the bandwidth of the resource that can will cooperate in the mode of frequency division multiplexing (FDM) is divided into a plurality of frequency ranges, for different users distributes different frequency ranges as above-mentioned first resource; The bandwidth of cooperation resource can also be divided into a plurality of subcarriers, the set of different sub carrier is distributed to different users as above-mentioned first resource.
Adopt under the situation of subcarrier, can also define frequency comb (Comb) according to different subcarrier spacings.Different users can be distinguished for different users distributes different Comb, the user of different districts can be distinguished for the user who is positioned at different districts distributes different Comb.In the later case, the Comb that adopt each residential quarter can determine by the device for allocating resources of concentrating, and also can be held consultation or determined according to predetermined strategy by a plurality of base stations.
The pilot frequency sequence of different user produces according to the different cyclic shifts (CS) of basic sequence, and the pilot frequency sequence of different user is distinguished by different Comb and CS in the similar frequency bands.The maximum of the CS that supports in the agreement is that the maximum of 8, comb is 2 at present, and the maximum multiplexing capacity of SRS is 16 in the similar frequency bands so.
According to one embodiment of present invention, can adopt more multiple Comb and less CS number, make its product constant simultaneously, for example keeping product is 16.For example, 4 kinds of Comb can be determined in the base station from described cooperation resource, make up in twos with 4 kinds of cyclic shifts of a basic sequence and obtain 16 different combination of resources; Perhaps, 8 kinds of Comb are determined in the base station from described cooperation resource, make up in twos with 2 kinds of cyclic shifts of a basic sequence and obtain 16 different combination of resources, choose one as described first resource from described 16 different combination of resources.Reducing the CS number that uses when increasing the Comb number according to the scheme of present embodiment can increase the flexibility of scheduling under the prerequisite that guarantees channel condition information (CSI) quality.Certainly, such scheme not only be adapted to the to cooperate distribution of resource, the also general domestic consumer's Resources allocation that is suitable for; And be not only applicable to DMRS and SRS, also be applicable to the upward signal of other type.
According to one embodiment of present invention, the precoding of collaboration user is also supported in the base station.The base station can will be used for sending uplink pilot signal for the above-mentioned information that meets the pre-coding matrix of pre-conditioned user's distribution offers described user.Described user utilizes described pre-coding matrix to carry out precoding to sent uplink pilot signal, will send in the cooperation resource of distributing through the uplink pilot signal of precoding.
The precoding configuration can be adopted the mode based on code book (codebook), also can adopt the mode based on non-code book.
In the mode based on code book, the set of the pre-defined some code words in base station (codeword), i.e. code book, the index (index) with selected code word is notified to UE then, and UE uses the code word of base station appointment that SRS is carried out pre-encode operation.
In the mode based on non-code book, the base station is only notified the equivalent aerial port number after whether UE carries out precoding and precoding, and does not specify UE to use which kind of pre-coding matrix, and UE can select pre-coding matrix voluntarily.
LTE R10 does not support SRS is carried out pre-encode operation at present, but in the present embodiment at also allowing collaboration user to use precoding under the situation of SRS, thereby save SRS sign indicating number resource, and signal energy is focused on the narrower direction in space, improve the signal quality of collaboration user.
In one embodiment of the present of invention, adopt different quadrature overlay codes (OCC) to distinguish different users.
The first quadrature overlay code can be distributed for first user in first base station, and first user utilizes the first quadrature overlay code to be weighted to sent the uplink pilot signal symbol, and the uplink pilot signal after the weighting is sent in the cooperation resource of distributing.Wherein, in the first quadrature overlay code and second base station range and the second quadrature overlay code that adopts of shared cooperation resource part or identical second user different.
This scheme is particularly useful for the TDD system.For the TDD system, if UpPTS only has 1 SC-FDMA symbol, this symbol can be used for the SRS transmission so; If UpPTS has 2 SC-FDMA symbols, these 2 symbols may be used to the SRS transmission so, and can distribute to same UE and use.By adopting the scheme of front embodiment, 2 in UpPTS mark off the search coverage of a special use as in the SC-FDMA symbol of SRS, namely should the zone only be used for meeting pre-conditioned user's SRS.At this moment, just can be in this special use search coverage of these 2 symbols, introduce the weighting operation of quadrature overlay code for 2 SRS symbols that meet pre-conditioned user, thereby can distinguish different users by the quadrature overlay code and with the combination of FDM or Comb, be lower than the user of default thresholding as collaboration user (CoMP-UE) or uplink signal strength or SINR.
Introduce the quadrature overlay code and can utilize the time, frequency, code resource more fully, for example, can be used for uplink with the identical or identical resource of second user's distribution portion for first user, only distinguish this two users by the quadrature overlay code.
Fig. 9 illustrates the principle schematic that adopts the quadrature overlay code in the example.Among the figure, {+1 ,+1} is weighted processing as the quadrature overlay code to 2 SRS symbols in user's utilization; Another user utilizes then that {+1 ,-1} is weighted processing as the quadrature overlay code to 2 SRS symbols.Through above-mentioned processing, these two users' SRS is orthogonal.
By adopting the quadrature overlay code, can increase the flexibility of base station scheduling, improve user's signal quality.When different districts adopts different quadrature overlay codes to distinguish the user of different districts, can reduce the interference between the user of different districts.
Certainly, the scheme of above-mentioned employing quadrature overlay code not only can be used for collaboration user, can also be used for domestic consumer, and be applicable to various uplink pilot signal.And the scheme of above-mentioned employing quadrature overlay code can be used separately, also can with other scheme, be used in combination as schemes such as above-mentioned FDM, Comb, CS, be used for distinguishing different users.
In addition, in one embodiment of the present of invention, the cooperation resource is supported frequency hopping.
In addition, the bandwidth of cooperation resource and the cycle occurs and also can dynamically adjust.For example, when the bandwidth of cooperation resource is determined according to the number of collaboration user, can under preset condition, trigger redefining or adjustment process of cooperation resource.Preset condition can be the duration of being scheduled to, the amplitude of variation of collaboration user number etc.When preset condition satisfied, definite process of cooperation resource can re-execute once to upgrade the cooperation resource; Perhaps, can increase or reduce the cooperation resource on the basis of the cooperation resource of current use according to the number of variations situation of collaboration user.
Help the technical staff below for a specific example to the present invention program's understanding.It is that example describes that this example adopts SRS, and those skilled in the art should will adjust and be used for the uplink pilot signal of other type at an easy rate.
Figure 10 is the flow chart of the resource allocation method of uplink pilot signal in the one embodiment of the invention.As shown in figure 10, this method can may further comprise the steps.
Step 1001 in the SC-FDMA symbol that is used for the SRS transmission, is determined the special-purpose search coverage of one or more cooperations according to the cell-specific SRS configuration information of a plurality of residential quarters.
Step 1002, resource reservation in this special-purpose search coverage that cooperates is used for sending SRS to collaboration user, and each base station is used for sending SRS for the domestic consumer of this residential quarter the resource division except the resource of this special-purpose search coverage that cooperates in the resource of the cell-specific SRS configuration information indication of this residential quarter.That is to say that the resource in this special-purpose search coverage that cooperates only is used for collaboration user and sends SRS, does not allow domestic consumer to use.
The resource division that step 1003, base station will cooperate in the special-purpose search coverage goes out multiple different Comb.
Step 1004, increase the Comb number that uses and reduce the CS number that uses, namely under the constant situation of the multiplexing exponent number of total SRS 16 keeping, 4 kinds or 8 kinds of Comb and a basic sequence 4 or 2 cyclic shifts (CS) are made up in twos, form 16 different alternative resource groups.
Step 1005, base station select a untapped set of resources dispensing collaboration user to be used for sending SRS from the alternative resource group.
Step 1006, base station are that described collaboration user distributes pre-coding matrix and quadrature overlay code, and the information of pre-coding matrix and quadrature overlay code is sent to described collaboration user.
Step 1007, described collaboration user utilizes the cyclic shift of the basic sequence in the resource group of base station assigns to generate SRS sequence to be sent, and carry out precoding and utilize the weighting of quadrature overlay code to handle to sent the SRS sequence, will utilize the Comb in the described resource group to send through the SRS sequence after precoding and the weighting processing.
Need to prove that not every step and module all are necessary in above-mentioned each flow process and each structure chart, can ignore some step or module according to the actual needs.The execution sequence of each step is not fixed, and can adjust as required.The division of each module only is the division on the function that adopts for convenience of description, during actual the realization, a module can be divided by a plurality of modules realizations, and the function of a plurality of modules also can be realized by same module, these modules can be arranged in same equipment, also can be arranged in different equipment.In addition, adopt " first ", " second " just to convenient two objects with same implication of distinguishing in describing above, do not represent its tangible difference.
The scheme of the embodiment of the invention can be reduced to and realize the required Signalling exchange expense of a plurality of residential quarter SRS cooperations by reserving the cooperation private resource.Simultaneously, avoid the phase mutual interference with domestic consumer, kept backwards compatibility.In the cooperation private resource, can realize that the SRS of different user is orthogonal by Comb and/or OCC, guarantee the quality of a plurality of residential quarter CSIT, and need not to be the special SRS of the reservation basic sequence that cooperates.Simultaneously, the collaboration user of different districts can use this search coverage simultaneously, has improved the level of resources utilization.Simultaneously, increase the Comb number that uses and also be conducive to increase dispatching flexibility.
In sum, more than be part embodiment of the present invention only, be not for limiting protection scope of the present invention.All any modifications of doing within the scope of the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (21)
1. the resource allocation method of a uplink pilot signal is applied to multi-cell communication systems, it is characterized in that, comprising:
Obtain in the described communication system at least two base stations at the cell specific configuration information of uplink pilot signal;
Determine the cooperation specific configuration information of uplink pilot signal at least according to the cell specific configuration information of described two base stations;
The cooperation resource reservation of described cooperation specific configuration information indication given meet pre-conditioned user and be used for sending uplink pilot signal, do not meet described pre-conditioned user for the transmission uplink pilot signal with what other resource division except described cooperation resource in the resource of the cell specific configuration information indication of the uplink pilot signal of each base station in described at least two base stations were given this base station.
2. the method for claim 1 is characterized in that, the cell specific configuration information of at least two base stations of described basis determines that the cooperation specific configuration information of uplink pilot signal comprises:
For the resource of the cell specific configuration information of described at least two base stations indication get occur simultaneously or union as the cooperation resource, and generate the cooperation specific configuration information that is used to indicate described cooperation resource; Perhaps
For the resource that the cell specific configuration information of described at least two base stations is indicated is got common factor or union, one or more resource collections of selecting with described common factor or union common factor to be arranged from default resource collection are as the resource that cooperates, and generation is used to indicate the cooperation specific configuration information of described cooperation resource.
3. method as claimed in claim 2, it is characterized in that, described method is applied to support the communication system of coordinate multipoint (CoMP), comprise in this communication system and can provide CoMP serving base station for collaboration user, describedly meet pre-conditioned user for described collaboration user, describedly do not meet described pre-conditioned user and be domestic consumer;
The cell specific configuration information of at least two base stations of described basis determines that the cooperation specific configuration information comprises:
Number according to the collaboration user in described at least two base station ranges marks off the bandwidth of same ratio as the total amount of bandwidth of described cooperate resource with the ratio of total number of users from the total bandwidth that is used for the transmission uplink pilot signal with the ratio of the number of domestic consumer or the number of collaboration user; Perhaps
When the ratio of the number of the ratio of the number of the number of the number of collaboration user or collaboration user and domestic consumer or collaboration user and total number of users during greater than preset threshold value, with the total amount of bandwidth of the default bandwidth corresponding with described threshold value as described cooperation resource.
4. the method for claim 1 is characterized in that, further comprises:
First base station in described at least two base stations is selected first resource and is distributed to and meet the first pre-conditioned user in described first base station range and be used for to send uplink pilot signal from described cooperation resource, to be used for second resource of transmission uplink pilot signal different for the second pre-conditioned user that meets in described first resource and described at least two base station ranges.
5. method as claimed in claim 4 is characterized in that, described first resource adopts different subcarrier set with second resource.
6. method as claimed in claim 4 is characterized in that, describedly selects first resource the resource from cooperation and distributes to and meet the first pre-conditioned user in described first base station range and be used for sending uplink pilot signal and comprise:
From described cooperation resource, determine M sub-carrier (Comb) at interval, make up in twos with the N kind cyclic shift of a basic sequence and obtain 16 different combination of resources; Wherein, the value of M, N is 2 and 8 or 4 and 4 or 8 and 2 or 16 and 1;
From described 16 different combination of resources, choose one as described first resource.
7. the method for claim 1 is characterized in that, further comprises:
First base station in described at least two base stations is to meet the first pre-conditioned user in described first base station range to distribute the first quadrature overlay code to be used for sending uplink pilot signal, wherein, it is different to meet the second quadrature overlay code that pre-conditioned and shared cooperation resource part or identical second user adopt at least in the first quadrature overlay code and described two base station ranges;
Described first user utilizes the described first quadrature overlay code to be weighted to sent at least two uplink pilot signal symbols, and the uplink pilot signal after the weighting is sent in the cooperation resource of distributing; The equal in length of the symbol numbers of the uplink pilot signal that wherein, is weighted and quadrature overlay code.
8. the method for claim 1 is characterized in that, further comprises:
First base station in described at least two base stations will offer first user for the information that meets the pre-coding matrix that pre-conditioned first user distributes and be used for sending uplink pilot signal;
Described first user utilizes described pre-coding matrix to carry out precoding to sent uplink pilot signal, will send in the cooperation resource of distributing through the uplink pilot signal of precoding.
9. as the described method of arbitrary claim among claim 1,2, the 4-8, it is characterized in that,
Describedly meet the intensity of its upward signal that pre-conditioned user receives for described base station or the user that Signal to Interference plus Noise Ratio (SINR) is lower than default thresholding; Perhaps
Described method is applied to support the communication system of coordinate multipoint (CoMP), comprise in this communication system and can provide CoMP serving base station for collaboration user, describedly meet pre-conditioned user for described collaboration user, describedly do not meet described pre-conditioned user and be domestic consumer.
10. the device for allocating resources of a uplink pilot signal is applied to multi-cell communication systems, it is characterized in that, comprising:
The configuration acquisition module is used for obtaining at least two base stations of described communication system at the cell specific configuration information of uplink pilot signal;
The cooperative arrangement determination module is for the cooperation specific configuration information of determining uplink pilot signal according to the cell specific configuration information of described configuration acquisition module acquisition;
Wherein, the cooperation resource reservation of described cooperation specific configuration information indication is given and is met pre-conditioned user for sending uplink pilot signal.
11. device as claimed in claim 10 is characterized in that,
Described cooperative arrangement determination module is used for: for the resource of the cell specific configuration information of described at least two base stations indication get occur simultaneously or union as the cooperation resource, and generate the cooperation specific configuration information that is used to indicate described cooperation resource; Perhaps, for the resource that the cell specific configuration information of described at least two base stations is indicated is got common factor or union, one or more resource collections of selecting with described common factor or union common factor to be arranged from default resource collection are as the resource that cooperates, and generation is used to indicate the cooperation specific configuration information of described cooperation resource.
12. device as claimed in claim 11, it is characterized in that, comprising in this communication system can be for collaboration user provides CoMP serving base station, describedly meets pre-conditioned user and is described collaboration user, does not describedly meet described pre-conditioned user and is domestic consumer;
Described cooperative arrangement determination module is used for: the number according to the collaboration user in described at least two base station ranges marks off the bandwidth of same ratio as the total amount of bandwidth of described cooperate resource with the ratio of total number of users from the total bandwidth that is used for the transmission uplink pilot signal with the ratio of the number of domestic consumer or the number of collaboration user; Perhaps, when the ratio of the number of the ratio of the number of the number of the number of collaboration user or collaboration user and domestic consumer or collaboration user and total number of users during greater than preset threshold value, with the total amount of bandwidth of the default bandwidth corresponding with described threshold value as described cooperation resource.
13. a base station is positioned at the communication system of many residential quarters, it is characterized in that, comprising:
The configuration acquisition module is used for obtaining at least two base stations of described communication system at the cell specific configuration information of uplink pilot signal, and wherein, described at least two base stations comprise this base station and at least one second base station;
The cooperative arrangement determination module is for the cooperation specific configuration information of determining uplink pilot signal according to the cell specific configuration information of configuration acquisition module acquisition;
Resource distribution module, be used for the cooperation resource reservation of described cooperation specific configuration information indication given meeting pre-conditioned user and being used for sending uplink pilot signal, do not meet pre-conditioned user for the transmission uplink pilot signal with what other resource division except described cooperation resource in the resource of the cell specific configuration information indication of this base station were given this base station.
14. base station as claimed in claim 13 is characterized in that,
Described cooperative arrangement determination module is used for: for the resource of the cell specific configuration information of described at least two base stations indication get occur simultaneously or union as the cooperation resource, and generate the cooperation specific configuration information that is used to indicate described cooperation resource; Perhaps, for the resource that the cell specific configuration information of described at least two base stations is indicated is got common factor or union, one or more resource collections of selecting with described common factor or union common factor to be arranged from default resource collection are as the resource that cooperates, and generation is used to indicate the cooperation specific configuration information of described cooperation resource.
15. base station as claimed in claim 14, it is characterized in that, this base station can with this communication system at least one other base station collaboration provide CoMP service for collaboration user, describedly meet pre-conditioned user for described collaboration user, describedly do not meet described pre-conditioned user and be domestic consumer;
Described cooperative arrangement determination module is used for: the number according to the collaboration user in described at least two base station ranges marks off the bandwidth of same ratio as the total amount of bandwidth of described cooperate resource with the ratio of total number of users from the total bandwidth that is used for the transmission uplink pilot signal with the ratio of the number of domestic consumer or the number of collaboration user; Perhaps, when the ratio of the number of the ratio of the number of the number of the number of collaboration user or collaboration user and domestic consumer or collaboration user and total number of users during greater than preset threshold value, with the total amount of bandwidth of the default bandwidth corresponding with described threshold value as described cooperation resource.
16. base station as claimed in claim 13 is characterized in that,
Described resource distribution module is further used for selecting first resource and distributes to and meet the first pre-conditioned user in this base station range and be used for to send uplink pilot signal from described cooperation resource; Wherein, meeting the second pre-conditioned user in described first resource and this base station and described second base station range, to be used for sending second resource of uplink pilot signal different.
17. base station as claimed in claim 16 is characterized in that,
Described resource distribution module is used for selecting first resource that adopts different subcarriers to gather with second resource from described cooperation resource and distributes to first user for sending uplink pilot signal.
18. base station as claimed in claim 16 is characterized in that,
Described resource distribution module is used for determining M sub-carrier (Comb) at interval from described cooperation resource, makes up in twos with the N kind cyclic shift of a basic sequence and obtains 16 different combination of resources; From described 16 different combination of resources, choose one as described first resource; Wherein, the value of M and N is 2 and 8 or 4 and 4 or 8 and 2 or 16 and 1.
19. base station as claimed in claim 13 is characterized in that,
Described resource distribution module is further used for distributing the first quadrature overlay code to utilize the first quadrature overlay code to be weighted to sent at least two uplink pilot signal symbols for first user for meeting the first pre-conditioned user, wherein, it is different to meet the second quadrature overlay code that pre-conditioned and shared cooperation resource part or identical second user adopt in the first quadrature overlay code and described at least one second base station range, the equal in length of the symbol numbers of the uplink pilot signal that is weighted and quadrature overlay code.
20. base station as claimed in claim 13 is characterized in that,
It will be that the information that meets the pre-coding matrix of pre-conditioned first user distribution offers first user for sending uplink pilot signal that described resource distribution module is further used for.
21. as the described base station of arbitrary claim among claim 13,14, the 16-20, it is characterized in that,
Described resource distribution module is used for the intensity of its upward signal that will receive or user that Signal to Interference plus Noise Ratio (SINR) is lower than default thresholding and meets pre-conditioned user as described; Perhaps
This base station can with this communication system at least one other base station collaboration provide CoMP service for collaboration user, described resource distribution module is used for collaboration user is met pre-conditioned user as described, and domestic consumer is not met described pre-conditioned user as described.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210045196.7A CN103298114B (en) | 2012-02-24 | 2012-02-24 | The resource allocation method and device of uplink pilot signal in communication system |
| JP2013020512A JP6121180B2 (en) | 2012-02-24 | 2013-02-05 | Resource allocation method and apparatus for uplink reference signal in communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210045196.7A CN103298114B (en) | 2012-02-24 | 2012-02-24 | The resource allocation method and device of uplink pilot signal in communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103298114A true CN103298114A (en) | 2013-09-11 |
| CN103298114B CN103298114B (en) | 2018-12-14 |
Family
ID=49098244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210045196.7A Active CN103298114B (en) | 2012-02-24 | 2012-02-24 | The resource allocation method and device of uplink pilot signal in communication system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6121180B2 (en) |
| CN (1) | CN103298114B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104168656A (en) * | 2014-08-25 | 2014-11-26 | 大唐移动通信设备有限公司 | Detection reference signal SRS resource allocation method and device |
| WO2019028924A1 (en) * | 2017-08-11 | 2019-02-14 | 华为技术有限公司 | Communication method and related device |
| CN109891809A (en) * | 2016-11-04 | 2019-06-14 | 三菱电机株式会社 | The resource allocation with different parameters collection is carried out on same carrier wave |
| CN110808763A (en) * | 2019-09-20 | 2020-02-18 | 三维通信股份有限公司 | Cooperative pilot interference suppression method for large-scale antenna system |
| CN110999386A (en) * | 2017-08-11 | 2020-04-10 | 华为技术有限公司 | Communication method and related equipment |
| US11438785B2 (en) * | 2019-02-03 | 2022-09-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and device for measuring interference or signal received power |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3422617A4 (en) | 2016-03-16 | 2019-03-06 | Huawei Technologies Co., Ltd. | Signal transmission method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101019400A (en) * | 2004-07-16 | 2007-08-15 | 高通股份有限公司 | Incremental pilot insertion for channel and interference estimation |
| CN101401338A (en) * | 2006-03-14 | 2009-04-01 | 三星电子株式会社 | Apparatus and method for performing resource allocation and communication in a wireless communication system, and system using the same |
| US20090109908A1 (en) * | 2007-10-30 | 2009-04-30 | Pierre Bertrand | Transmission of Sounding Reference Signal and Scheduling Request in Single Carrier Systems |
| WO2011068995A2 (en) * | 2009-12-03 | 2011-06-09 | Qualcomm Incorporated | Sounding reference signal enhancements for wireless communication |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8938247B2 (en) * | 2009-04-23 | 2015-01-20 | Qualcomm Incorporated | Sounding reference signal for coordinated multi-point operation |
| JP5413964B2 (en) * | 2009-09-14 | 2014-02-12 | パナソニック株式会社 | Radio base station apparatus, radio terminal apparatus, and radio communication method |
-
2012
- 2012-02-24 CN CN201210045196.7A patent/CN103298114B/en active Active
-
2013
- 2013-02-05 JP JP2013020512A patent/JP6121180B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101019400A (en) * | 2004-07-16 | 2007-08-15 | 高通股份有限公司 | Incremental pilot insertion for channel and interference estimation |
| CN101401338A (en) * | 2006-03-14 | 2009-04-01 | 三星电子株式会社 | Apparatus and method for performing resource allocation and communication in a wireless communication system, and system using the same |
| US20090109908A1 (en) * | 2007-10-30 | 2009-04-30 | Pierre Bertrand | Transmission of Sounding Reference Signal and Scheduling Request in Single Carrier Systems |
| WO2011068995A2 (en) * | 2009-12-03 | 2011-06-09 | Qualcomm Incorporated | Sounding reference signal enhancements for wireless communication |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104168656A (en) * | 2014-08-25 | 2014-11-26 | 大唐移动通信设备有限公司 | Detection reference signal SRS resource allocation method and device |
| CN104168656B (en) * | 2014-08-25 | 2018-07-24 | 大唐移动通信设备有限公司 | A kind of detection reference signal SRS resource distribution method and device |
| CN109891809A (en) * | 2016-11-04 | 2019-06-14 | 三菱电机株式会社 | The resource allocation with different parameters collection is carried out on same carrier wave |
| WO2019028924A1 (en) * | 2017-08-11 | 2019-02-14 | 华为技术有限公司 | Communication method and related device |
| CN110999386A (en) * | 2017-08-11 | 2020-04-10 | 华为技术有限公司 | Communication method and related equipment |
| CN110999455A (en) * | 2017-08-11 | 2020-04-10 | 华为技术有限公司 | Communication method and related equipment |
| CN110999386B (en) * | 2017-08-11 | 2022-04-12 | 华为技术有限公司 | Communication method and related equipment |
| CN110999455B (en) * | 2017-08-11 | 2022-04-29 | 华为技术有限公司 | Communication method and related equipment |
| US11438785B2 (en) * | 2019-02-03 | 2022-09-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and device for measuring interference or signal received power |
| US11910220B2 (en) | 2019-02-03 | 2024-02-20 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and device for measuring interference or signal received power |
| CN110808763A (en) * | 2019-09-20 | 2020-02-18 | 三维通信股份有限公司 | Cooperative pilot interference suppression method for large-scale antenna system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6121180B2 (en) | 2017-04-26 |
| JP2013214955A (en) | 2013-10-17 |
| CN103298114B (en) | 2018-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101777941B (en) | Downlink mode of transmission, network devices and wireless device in the coordinated multiple-point transmission systems | |
| JP6437493B2 (en) | Insertion of virtual carrier into conventional OFDM host carrier in communication system | |
| JP5976681B2 (en) | Insertion of virtual carrier into conventional OFDM host carrier in communication system | |
| CN103444122B (en) | In a communications system virtual carrier is inserted tradition OFDM main carrier | |
| CN101777940B (en) | Method, device and system for transmitting uplink information | |
| CN101385262B (en) | Apparatus and method for allocating resources and performing communication in a wireless communication system | |
| CN103298114A (en) | Resource allocation method and device for uplink pilot signals in communication system | |
| CN102158449B (en) | Method, base station and terminal for generating reference signal | |
| CN101989871B (en) | Sending method, device and system of detection reference signal | |
| CN103002581B (en) | Physical Downlink Control Channel bearing method and system based on demodulated reference signal | |
| EP3032863A1 (en) | Wireless communication system, and method for determining antenna configuration | |
| CN105472745A (en) | Sounding reference signal resource allocation method and equipment | |
| CN103096389A (en) | Transmission method of uplink reference signals and user equipment and base station | |
| CN102884751A (en) | Methods and apparatuses for using channel state information reference signals | |
| CN103687042A (en) | Transmission method and system for physical downlink shared channel | |
| CN103973392A (en) | Parameter sending method and device and uplink demodulation reference signal emission method and device | |
| CN103391151A (en) | Method and device for transmitting information on enhanced physical downlink control channel | |
| CN102142918A (en) | Method and equipment for processing pilot sequence | |
| CN102958183A (en) | Method, equipment and system for transmitting enhanced downlink control channel | |
| CN101848541A (en) | Method and device for sending sounding reference signal | |
| CN102932932B (en) | SRS and PUSCH method of coordinated transmission and system | |
| CN103931253A (en) | Methods and devices for dynamic allocation of identifiers in hybrid cell identifier scenarios | |
| CN103716132A (en) | Downlink control information processing device and method | |
| CN102932797A (en) | SRS (Sounding Reference Signal) and PUCCH (Physical Uplink Control Channel) coordinate transmission method and system | |
| CN102026377A (en) | Transmission method for uplink control signaling, base station and user equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |