CN104333899A - Method for power control, and method and device for CSI measurements - Google Patents

Method for power control, and method and device for CSI measurements Download PDF

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Publication number
CN104333899A
CN104333899A CN201310308732.2A CN201310308732A CN104333899A CN 104333899 A CN104333899 A CN 104333899A CN 201310308732 A CN201310308732 A CN 201310308732A CN 104333899 A CN104333899 A CN 104333899A
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CN
China
Prior art keywords
frame
subframe
sub
uplink
indication information
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CN201310308732.2A
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Chinese (zh)
Inventor
赵铮
李迎阳
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Beijing Samsung Telecom R&D Center
Beijing Samsung Telecommunications Technology Research Co Ltd
Samsung Electronics Co Ltd
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Beijing Samsung Telecommunications Technology Research Co Ltd
Samsung Electronics Co Ltd
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Priority to CN201310308732.2A priority Critical patent/CN104333899A/en
Publication of CN104333899A publication Critical patent/CN104333899A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences

Abstract

The present application discloses a method for uplink power control. UE first obtains indication information, and then performs power control on a corresponding sub-frame using corresponding power control parameters according to the indication information. The present application further discloses a device and a method for CSI measurements. The application of the technical solution disclosed by the present application can use few resources to enable the UE to know conditions of interferences in the uplink sub-frame and the downlink sub-frame, and to accurately perform corresponding operations, thereby improving the performance of a system.

Description

Carry out the method for power control, carry out the method and apparatus of CSI measurement
Technical field
The application relates to mobile communication technology field, particularly carries out the method for power control, carries out the method and apparatus of CSI measurement.
Background technology
Long Term Evolution (LTE) system of 3GPP standardization body supports Frequency Division Duplexing (FDD) (FDD) and time division duplex (TDD) two kinds of duplex modes.In LTE TDD, the length of each radio frames is 10ms, and it is divided into two length is the field of 5ms, specifically LTE tdd frame structure as shown in Figure 1.And each field comprises time slot and 3 special domain that 8 length are 0.5ms, these 3 special domain comprise descending pilot frequency time slot (DwPTS), protection interval (GP) and uplink pilot time slot (UpPTS), the length of these 3 special domain be 1ms.In addition, each subframe of the LTE tdd frame structure shown in Fig. 1 is made up of two continuous print time slots, and namely a kth subframe comprises time slot 2k and time slot 2k+1.
LTE TDD supports 7 kinds of upstream and downstream configurations, and as shown in table 1, wherein, the D in table 1 represents descending sub frame, and U represents sub-frame of uplink, and S representative comprises the special subframe of above-mentioned 3 special domain.
In the regulation of current LTE protocol, the TDD uplink-downlink configuration of community notifies UE(User Equipment by base station by broadcast signaling), eNB frequently can not change the TDD uplink-downlink configuration in community.
Table 1
In order to meet the growing business demand of mobile subscriber, in LTE-A, dynamic service self adaptation TDD system obtains increasing concern.Dynamic service Adaptable System can make the ratio of current sub-frame of uplink and descending sub frame more meet the ratio of current upstream traffic and downlink traffic, is conducive to improving the up-downgoing peak rate of user and improves the throughput of system.
For dynamic service Adaptable System, the TDD uplink-downlink configuration of community is dynamic change along with the up-downgoing traffic carrying capacity in current area, and this just means that some subframe dynamically can change up-downlink direction, and this part subframe is called flexible sub-frame.In addition, the wireless environment at place, dynamic service adaptive cell can be subject to the impact of around adjacent frequency or co-frequency neighbor cell, when the TDD uplink-downlink configuration of adjacent cell is different with this community, dynamic service adaptive cell interior molecules frame can be subject to the stronger interference of dominant interference adjacent cell, and other a part of subframe can be subject to the comparatively weak jamming of dominant interference adjacent cell.Such as: for the descending sub frame in dynamic service adaptive cell, when dominant interference adjacent cell is also descending sub frame in these subframe position, these descending sub frames in dynamic service adaptive cell will be subject to the stronger interference of dominant interference adjacent cell, and when dominant interference community is sub-frame of uplink in these subframe position, these descending sub frames in dynamic service adaptive cell will be subject to the more weak interference of dominant interference adjacent cell.
In existing LTE/LTE-A system, UE can according to the configuration of eNB, CSI(Channel State Information is carried out to down channel) measure, and feed back CSI information, so that eNB obtains the down channel situation of UE and the information of interference, when the disturbance regime of each descending sub frame differs greatly, tackle these descending sub frames and carry out CSI measurement respectively and report.For uplink, the power contorl parameters that UE notifies according to eNB, take suitable power to send to up channel, up channel disturbance regime is the principal element affecting power control, and different interference can cause different power contorl parameters.
For convenience of explanation, be illustrated with the sub-frame set being subject to the interference of dominant interference adjacent cell sub-frame of uplink with the sub-frame set being subject to the interference of dominant interference adjacent cell descending sub frame.As shown in Figure 2, Tu Zhongzhe community adopts TDD uplink-downlink configuration 1, dominant interference adjacent cell adopts TDD uplink-downlink configuration 0, descending sub frame TTI#0 shown in 201 receives the interference of neighbor cell descending sub frame, descending sub frame TTI#4 shown in 202 receives the interference of neighbor cell sub-frame of uplink, the interference strength that TTI#0 with TTI#4 is subject to is different, the CSI that therefore will measure respectively and report TTI#0 and TTI#4 corresponding.
In addition, Tu3Zhong Zhe community adopts TDD uplink-downlink configuration 0, dominant interference adjacent cell adopts TDD uplink-downlink configuration 1, TTI#2 shown in 301 receives the interference of neighbor cell sub-frame of uplink, TTI#4 shown in 302 receives the interference of neighbor cell descending sub frame, the interference strength that TTI#2 with TTI#4 is subject to is different, therefore should take different power contorl parameters to TTI#2 and TTI#4.
Like this, in dynamic service adaptive cell, the descending sub frame (comprising flexible sub-frame) of each radio frames can be divided into the descending sub frame set being subject to more strongly disturbing descending sub frame set and being subject to compared with weak jamming, needs to carry out CSI measurement to these two set respectively and reports.For sub-frame of uplink, the sub-frame of uplink (comprising flexible sub-frame) of each radio frames also can be divided into the sub-frame of uplink set being subject to more strongly disturbing sub-frame of uplink set and being subject to compared with weak jamming, should carry out power control respectively to these two set.
In order to carry out CSI measurement or power control to two set respectively, UE needs to know which set is each subframe belong to.
Summary of the invention
This application provides a kind of method and apparatus carrying out power control, can by less resource, make UE know power contorl parameters corresponding to each subframe, thus carry out power control exactly, improve the performance of system.
Present invention also provides a kind of method and apparatus carrying out CSI measurement, can by less resource, UE is known, and the CSI corresponding to each subframe configures, thus carries out CSI measurement exactly, improves the performance of system.
A kind of method of carrying out power control that the application provides, comprising:
A, UE obtain indication information;
B, UE adopt corresponding power contorl parameters to carry out power control according to described indication information to corresponding subframe.
Preferably, described A comprises: UE receives the high-level signaling of instruction physical layer configurations, obtains the Bit String of the power contorl parameters be used to indicate corresponding to each subframe from described high-level signaling;
Described B comprises: UE determines according to the value of bit each in described Bit String the power contorl parameters that corresponding sub-frame of uplink adopts.
Preferably, described A comprises: UE receives the physical layer signaling that length is N number of bit; Wherein, N equals the quantity of flexible sub-frame, and described N number of bit corresponds respectively to a flexible sub-frame;
Described B comprises: UE, according to the actual TDD uplink-downlink configuration of the value of bit each in described physical layer signaling and this community, determines the power contorl parameters that corresponding flexible sub-frame adopts.
Preferably, described A comprises: UE receives the high-level signaling that indicated horsepower controls configuration, obtains the Bit String of the power contorl parameters be used to indicate corresponding to each sub-frame of uplink from described high-level signaling;
Described B comprises: UE determines according to the value of bit each in described Bit String the power contorl parameters that corresponding sub-frame of uplink adopts.
Preferably, the method comprises further: UE determines on-fixed sub-frame of uplink or fixing sub-frame of uplink;
Described A comprises: UE receives DCI, from described DCI, obtain TPC command;
Described B comprises: if the sub-frame of uplink corresponding to described TPC command is on-fixed sub-frame of uplink, UE determines according to the value of described TPC command bit the power contorl parameters that described on-fixed sub-frame of uplink adopts, and the dynamic offset that the power of on-fixed sub-frame of uplink controls according to another bit determination of described TPC command.
Preferably, described A comprises: UE receives DCI format 0, from described DCI format 0, obtain UL Index;
Described B comprises: UE to determine to be scheduled the power contorl parameters that subframe and this subframe adopt according to the value of described UL Index.
Preferably, described A comprises: UE receives DCI format 0, from described DCI format 0, obtain UL DAI;
Described B comprises: UE determines according to the value of described UL DAI the power contorl parameters that the sub-frame of uplink being scheduled PUSCH place adopts.
A kind of method of carrying out CSI measurement that the application provides, comprising:
A, UE obtain indication information;
B, UE measure as a CSI measurement or the 2nd CSI corresponding subframe according to described indication information.
The length of described indication information is 3 bits, indicates the actual TDD uplink-downlink configuration of this community; Wherein, the corresponding 8 kinds of values of described 3 bits, 7 kinds of values wherein correspond respectively to 7 kinds of TDD uplink-downlink configuration, and remaining a kind of value corresponds at least one of 7 kinds of TDD uplink-downlink configuration, and often kind of value also has corresponding descending sub frame;
Described B comprises: UE determines the actual TDD uplink-downlink configuration of this community according to the value of described indication information, and determines that descending sub frame corresponding to described value is used as the 2nd CSI and measures.
Preferably, described indication information also comprises the indication information whether having the subframe measured as the 2nd CSI;
Described B comprises: UE is the actual TDD uplink-downlink configuration that the value of the indication information of 3 bits determines this community according to described length, and described be used to indicate whether have the instruction of the indication information of the subframe measured as the 2nd CSI to have a subframe measured as the 2nd CSI time, determine that described length is that descending sub frame corresponding to the value of the indication information of 3 bits is used as the 2nd CSI and measures.
Preferably, the length of described indication information is 3 bits, indicates the actual TDD uplink-downlink configuration that this community is possible; Wherein, the corresponding 8 kinds of values of described 3 bits, often kind of value corresponding N1 kind TDD uplink-downlink configuration, and a corresponding N2 subframe; Wherein, N1 and N2 is more than or equal to 0, and described N1 kind TDD uplink-downlink configuration comprises the TDD uplink-downlink configuration of this community reality;
Described B comprises: UE, according to the value of described indication information, determines that N2 subframe corresponding to described value is used as the 2nd CSI and measures.
Preferably, described indication information comprises the indication information that indication information that length is 3 bits and length are N3 bit; Described length is the actual TDD uplink-downlink configuration that the indication information of 3 bits indicates this community; N3 is more than or equal to 1;
Described B comprises: UE is the actual TDD uplink-downlink configuration that the value of the indication information of 3 bits determines this community according to described length, and be the TDD up-downgoing reference configuration of the indication information determination adjacent cell of N3 bit in conjunction with described length, adjacent cell up-downgoing reference configuration is designated as up this cell downlink subframe and is defined as being used as the subframe that the 2nd CSI measures by UE.
Preferably, described indication information is used to indicate the descending sub frame measured as the 2nd CSI;
Described B comprises: the descending sub frame indicated by described indication information is defined as the subframe being used as the 2nd CSI measurement by UE;
Or described indication information is used to indicate the TDD up-downgoing reference configuration of descending sub frame and the adjacent cell measured as the 2nd CSI;
Described B comprises: the descending sub frame indicated by described indication information is defined as being used as the subframe that the 2nd CSI measures by UE, and according to the TDD up-downgoing reference configuration of indication information determination adjacent cell.
A kind of equipment that the application provides, comprising: indication information acquisition module and power control module, wherein:
Indication information acquisition module, for obtaining indication information;
Power control module, for adopting corresponding power contorl parameters to carry out power control according to described indication information to corresponding subframe.
As seen from the above technical solution, the method and apparatus of the determination sub-frame set that the application provides, can by less resource, UE is made to know power contorl parameters corresponding to each subframe and/or CSI measurement parameter, thus adopt corresponding power contorl parameters to carry out power control respectively to corresponding subframe, or corresponding CSI measurement is carried out to corresponding subframe, improves and carry out the accuracy that CSI measures and power controls, and improve the performance of system.In addition, the such scheme that the application proposes, changes very little to existing equipment or system, can not affect the compatibility of equipment, and it realizes not only simple but also efficient.
Accompanying drawing explanation
Fig. 1 is the frame structure schematic diagram of LTE TDD;
Fig. 2 is subject to the descending sub frame of dominant interference adjacent cell descending sub frame interference and is subject to the schematic diagram of the descending sub frame that dominant interference adjacent cell sub-frame of uplink disturbs;
Fig. 3 is subject to the sub-frame of uplink of dominant interference adjacent cell descending sub frame interference and is subject to the schematic diagram of the sub-frame of uplink that dominant interference adjacent cell sub-frame of uplink disturbs;
Fig. 4 is the better flow chart carrying out the method for power control of the application one;
Fig. 5 is the flow chart of the embodiment of the present application one;
Fig. 6 is the flow chart of the embodiment of the present application two;
Fig. 7 is the flow chart of the embodiment of the present application three;
Fig. 8 is the flow chart of the embodiment of the present application four;
Fig. 9 is the composition structural representation of the better equipment of the application one.
Embodiment
For making the object of the application, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the application is described in further detail.
The technical problem that the application will solve is, makes UE know the power contorl parameters that each sub-frame of uplink adopts and the CSI measurement parameter that each descending sub frame adopts.For ease of explanation, in some describe, according to the power contorl parameters that each sub-frame of uplink adopts, to the sub-frame division of same set of power contorl parameters be adopted in a set, and according to the CSI measurement parameter that each descending sub frame adopts, will be used as the one CSI measure sub-frame division to one set in, as the 2nd CSI measure sub-frame division to another set in, obtain two sub-frame of uplink set and two descending sub frame set, and be described based on divided sub-frame set.It is pointed out that dividing sub-frame set is only for convenience of explanation, non-essential division sub-frame set, as long as make UE know, the power contorl parameters that each sub-frame of uplink adopts and the CSI that each descending sub frame adopts configure.
Below by order to make UE carry out CSI measurement to different descending sub frame set respectively, and divide the set obtained and be called descending sub frame set 1 and descending sub frame set 2, a corresponding CSI measures and the 2nd CSI measures respectively; By in order to make UE carry out power control to different sub-frame of uplink set respectively, and divide the set obtained and be called sub-frame of uplink set 1 and sub-frame of uplink set 2, adopt first set power contorl parameters and the second cover power contorl parameters respectively.When dividing sub-frame set, can carry out according to different division principles, below several better division principle being described.
Such as: sub-frame of uplink set 1 can be regarded as and is subject to more strongly disturbing sub-frame of uplink set, sub-frame of uplink set 2 can be regarded as the sub-frame of uplink set be subject to compared with weak jamming, descending sub frame set 1 can be regarded as and is subject to more strongly disturbing descending sub frame set, and descending sub frame set 2 can be regarded as the descending sub frame set be subject to compared with weak jamming.
Again such as: being subject to comparatively strong jamming can be replaced with dominant interference and come from adjacent cell downlink transfer by equivalent, be subject to comparatively weak jamming to be replaced with dominant interference and come from adjacent cell uplink by equivalent; Or, be subject to compared with strong jamming can by equivalent replace with carry out downlink transfer interference adjacent cell number more than the interference adjacent cell number carrying out uplink, be subject to be replaced with the no more than interference adjacent cell number carrying out uplink of the interference adjacent cell number carrying out downlink transfer by equivalent compared with weak jamming.
Again such as: descending sub frame set 1 can be regarded as fixing descending sub frame, descending sub frame set 2 can be regarded as descending sub frame flexibly, and sub-frame of uplink set 1 can be regarded as sub-frame of uplink flexibly, and sub-frame of uplink set 2 can be regarded as fixing sub-frame of uplink.Wherein, fixing sub-frame of uplink represents the difference along with TDD uplink-downlink configuration, UE knows that this subframe is always sub-frame of uplink, fixing descending sub frame represents the difference along with TDD uplink-downlink configuration, UE knows that this subframe is always descending sub frame, flexible sub-frame represents the difference along with TDD uplink-downlink configuration, and this subframe can change between sub-frame of uplink and descending sub frame.
The application is not only applicable to dynamic service Adaptable System, also be applicable to following situation: the situation adopting common signaling to indicate to the sorting parameter of sub-frame of uplink and descending sub frame, and gather by DCI(Downlink Control Information belonging to sub-frame of uplink) TPC or UL Index in form 0 or UL DAI order situation about indicating.In this application, mainly illustrate for dynamic service Adaptable System.
Fig. 4 is the flow chart that the application one preferably carries out the method for power control, comprises the following steps:
Step 401:UE obtains indication information.
Step 402:UE adopts corresponding power contorl parameters to carry out power control according to described indication information to corresponding subframe.
Similarly, the method that the application carries out CSI measurement can comprise the following steps:
UE obtains indication information;
UE according to described indication information to corresponding subframe carry out the one CSI measure or the 2nd CSI measure.
In above-mentioned steps 401, the CSI that the indication information that UE obtains is used to indicate corresponding to each subframe measures or power contorl parameters, that is: for determining the dividing condition of sub-frame set, descending sub frame set 1 and descending sub frame set 2 respectively a corresponding CSI measurement and the 2nd CSI are measured, and sub-frame of uplink set 1 and sub-frame of uplink set 2 adopt first set power contorl parameters and the second cover power contorl parameters respectively.Introduce the form of several preferably indication information below.
The first is form preferably: the CSI that indication information indicates relevant sub-frame corresponding by the mode of bit mapping measures or power contorl parameters, that is: the sub-frame set of instruction belonging to relevant sub-frame, a corresponding subframe of bit, represents the sub-frame set belonging to corresponding subframe by the different values of bit.To disturb the strong and weak principle as dividing sub-frame set, each bit may be used for representing that corresponding subframe is subject to adjacent cell comparatively strong jamming or comparatively weak jamming.The division of sub-frame of uplink set and the division of descending sub frame set can adopt the mode of bit mapping to indicate in same signaling, or in independently signaling, adopt the mode of bit mapping to the division of the division and descending sub frame set that indicate sub-frame of uplink set respectively.
The second is form preferably: indication information comprises the TDD uplink-downlink configuration of this community reality, 7 kinds of TDD uplink-downlink configuration are indicated by 7 kinds of values respectively, in addition wherein one or more configurations in 7 kinds of TDD uplink-downlink configuration may correspond to the 8th kind of value of indication information, each value has corresponding sub-frame set to divide, and the corresponding different CSI of different set measures or power contorl parameters.Implication representated by often kind of value notifies UE by high-level signaling, or arranges in a standard.
The third is form preferably: the actual TDD uplink-downlink configuration that indication information indicates this community possible, this indication information is indicated by physical layer signaling, possible actual TDD uplink-downlink configuration corresponding to each value of indication information, one or more TDD uplink-downlink configuration can be corresponded to, possible actual TDD uplink-downlink configuration comprises the TDD uplink-downlink configuration of this community reality, according to the dividing condition of possible actual TDD uplink-downlink configuration determination descending sub frame set, namely determine that subframe is used as a CSI measurement or the 2nd CSI measures.
Whether the 4th kind of preferably form: indication information is used to indicate the descending sub frame whether having and belong to descending sub frame set 2, namely have the subframe measured as the 2nd CSI, and the subframe sequence number of these descending sub frames.In order to save the expense of indication signaling, the descending sub frame merger belonging to descending sub frame set 2 is become several situation by the application, and often kind of situation adopts a value of indication information to indicate.Merger is based on following principle: each instruction two at most belongs to the descending sub frame of descending sub frame set 2; If instruction is two subframes, be then spaced apart 5 milliseconds between two subframes; When the actual TDD uplink-downlink configuration of this community and adjacent cell is respectively any one, if subframe Y is the descending sub frame belonging to descending sub frame set 2, subframe X also necessarily belongs to descending sub frame set 2, then subframe Y is excluded as the situation of the descending sub frame belonging to descending sub frame set 2 separately; Fixing descending sub frame can not be instructed to.
5th kind of preferably form: indication information is used to indicate adjacent cell disturbed condition, represented by adjacent cell TDD up-downgoing reference configuration, adjacent cell TDD up-downgoing reference configuration can be different from the actual TDD uplink-downlink configuration of adjacent cell, be used for determining in step 402 the sub-frame set dividing condition of sub-frame of uplink, namely determine the power contorl parameters that sub-frame of uplink adopts.Adjacent cell interference and this cell information can indicate in different signaling or same signaling, and wherein the information of this community refers to or several in following information: the possible actual TDD uplink-downlink configuration in the TDD uplink-downlink configuration of this community reality, this community, whether have the subframe measured as CSI, the sequence number measuring subframe as the 2nd CSI.
If this cell information adopts the instruction of different signaling with adjacent cell interference, for the actual TDD uplink-downlink configuration in each this community, the actual TDD uplink-downlink configuration that adjacent cell is different has identical sub-frame of uplink set and divides, then adopt same sequence number instruction, otherwise, adopt different sequence number instructions.If this cell information adopts the instruction of identical signaling with adjacent cell interference, the various combination of this community multiple and the actual TDD uplink-downlink configuration of adjacent cell, if the set of the identical descending sub frame of correspondence and sub-frame of uplink divides, then adopts same sequence number instruction, otherwise, adopt different sequence number instructions.
6th kind of preferably form: notify sub-frame of uplink set belonging to the subframe of UE corresponding up channel place in physical layer command, namely power controls the parameter that adopts, and physical layer command comprises TPC command, UL Index order and UL DAI order.
In above-mentioned steps 402, UE receives indication information according in step 401, adopts corresponding power contorl parameters to carry out power control to corresponding subframe, namely adopts first set or the second cover parameter to carry out power control.
If comprise adjacent cell TDD up-downgoing reference configuration in the indication information received in step 401, so, adjacent cell TDD up-downgoing reference configuration is designated as in the actual TDD uplink-downlink configuration of up Qie Zhe community and is designated as up subframe, belong to sub-frame of uplink set 2, adopt the second cover power contorl parameters; Adjacent cell TDD up-downgoing reference configuration is designated as in the actual TDD uplink-downlink configuration of descending Qie Zhe community and is designated as up subframe, belongs to sub-frame of uplink set 1, adopts first set power contorl parameters.
Below by several preferred embodiment, technical scheme is further elaborated.
Embodiment one
The mode of the present embodiment employing bit mapping indicates the sub-frame set belonging to each subframe, as shown in Figure 5.
Step 501:UE receives the high-level signaling of instruction physical layer configurations, comprises the Bit String being used to indicate CSI measurement corresponding to each subframe or power contorl parameters, the Bit String of sub-frame set namely in this high-level signaling.
In this step, sub-frame set belonging to each subframe is indicated by the mode of bit mapping, that is: the bit mapping signaling being used to indicate sub-frame set belonging to each subframe is included in this high-level signaling, the corresponding subframe of each bit in this bit mapping signaling, each bit represents the sub-frame set belonging to the subframe of correspondence by different values.
Such as: actual TDD uplink-downlink configuration current or recent each other between neighbor cell, can be obtained, the base station of this community is according to the actual TDD uplink-downlink configuration of obtained adjacent cell, can determine the UE of this community is subject to comparatively strong jamming in which subframe, which subframe is subject to comparatively weak jamming.Accordingly, to each bit in bit mapping signaling, by of this bit value, base station can represent that corresponding subframe is subject to strong jamming, another value represents that corresponding subframe is subject to weak jamming.
Following example-1 to example-4 defines a new IE type: IE InterfSubframePattern.IE InterfSubframePattern is defined as the Bit String of certain length, is represented the information of sub-frame set belonging to each subframe by the value of each bit.This IE type can be used as above-mentioned bit mapping signaling.In the application's example shown, be 10,20,60 and 70 to be described for the length of Bit String.To determine in agreement that a kind of IE InterfSubframePattern defines.
In each example, first (i.e. the leftmost side) bit correspondence in Bit String meets the subframe #0 of SFN mod x=0 radio frames, wherein SFN is the frame number of main plot, x be Bit String divided by the value after 10, bit value is that " 1 " represents that corresponding subframe belongs to sub-frame set 1; Correspondingly, bit value " 0 " represents that corresponding subframe belongs to sub-frame set 2.Certainly, also the implication corresponding to two kinds of values can be exchanged, the implication of each value as long as base station and UE both sides know for sure.In the follow-up similar citing of the application, if no special instructions, the implication corresponding to bit value is all interchangeable.
Example-1InterfSubframePattern IE
Example-2InterfSubframePattern IE
Example-3InterfSubframePattern IE
Example-4InterfSubframePattern IE
In this step, the high-level signaling of instruction physical layer configurations is as follows, comprises the bit mapping signaling of an interfSubframePattern type: InterfSubframePattern-r12 in this high-level signaling.
PhysicalConfigDedicated IE example
Step 502:UE, according to the value of bit each in described Bit String, determines the corresponding sub-frame set belonging to subframe, namely determines that the CSI of corresponding subframe measures and power contorl parameters.Specifically: interSubframePattern intermediate value is that the descending sub frame that the bit of " 1 " is corresponding belongs to descending sub frame set 1, measure as a CSI, the descending sub frame that the bit that value is " 0 " is corresponding belongs to descending sub frame set 2, measure as the 2nd CSI, the sub-frame of uplink that the bit that value is " 1 " is corresponding belongs to sub-frame of uplink set 1, power controls to adopt first set power contorl parameters, the sub-frame of uplink that the bit that value is " 0 " is corresponding belongs to sub-frame of uplink set 2, and power controls employing second and overlaps power contorl parameters.
Step 503:UE carries out CSI measurement respectively to the descending sub frame set of two in step 502, carries out power control respectively to the sub-frame of uplink set of two in step 502.
In method shown in Fig. 5, be the dividing condition indicating sub-frame set in high-level signaling by the mode of bit mapping, in fact, adopt the dividing condition of bit mapping instruction sub-frame set also to realize by physical layer signaling.
For saving physical layer signaling expense, can distribute a bit for each flexible sub-frame, indicating corresponding flexible sub-frame to belong to sub-frame set 1 or sub-frame set 2 respectively by the different values of each bit, the parameter that namely CSI measures or power controls is 1 or 2.Here, sub-frame set 1 has two kinds of possibilities: sub-frame of uplink set 1 and descending sub frame set 1; Sub-frame set 2 also has two kinds of possibilities: sub-frame of uplink set 2 and descending sub frame set 2, specifically refer to any, also needs to determine according to the transmission direction of flexible sub-frame in actual TDD uplink-downlink configuration.This physical layer signaling can be community common signaling, or user organizes interior common signaling, or the specific signaling of user.If consider all 7 kinds of TDD uplink-downlink configuration, there are at most five subframes to be flexible sub-frame, therefore can set this physical layer signaling and comprise 5 bits.UE is according to the indication information of the actual TDD uplink-downlink configuration received, determine that flexible sub-frame is sub-frame of uplink or descending sub frame, in conjunction with the physical layer signaling bit of instruction corresponding to this subframe sub-frame set belonging to it, determine the concrete affiliated sub-frame set of this subframe, that is: belong to sub-frame of uplink set 1 or 2, or belong to descending sub frame set 1 or 2.
Embodiment two
Step 601:UE receives the high-level signaling that instruction CSI measures subframe, the Bit String of the measurable descending sub frame be used to indicate corresponding to each CSI configuration is comprised in this high-level signaling, UE receives the high-level signaling that indicated horsepower controls configuration, comprises the Bit String being used to indicate the power contorl parameters that each sub-frame of uplink adopts in this high-level signaling.
When using the mode of bit mapping to indicate relevant information, the IE type of definition in example-1 to example-4 as previously mentioned still can be used: IE InterfSubframePattern.In each example:
First (i.e. the leftmost side) bit correspondence in Bit String meets the subframe #0 of SFN mod x=0 radio frames, and wherein SFN is the frame number of main plot, x be Bit String divided by values after 10;
Measure for the high-level signaling of subframe for instruction in CSI configuration, bit value is that " 1 " represents that corresponding subframe is used as CSI and measures, the concrete CSI adopted measures subframe instruction as shown in follow-up csi-SubframePatternConfig-r12IE example, and " 0 " represents that corresponding subframe is not used as CSI and measures;
For the high-level signaling that indicated horsepower controls configuration, bit value is that " 1 " represents that corresponding subframe adopts first set power contorl parameters to carry out power control, and " 0 " represents that corresponding subframe adopts the second cover power contorl parameters to carry out power control.
Certainly, also the implication corresponding to two kinds of values can be exchanged, the implication of each value as long as base station and UE both sides know for sure.
In example below, CSI related signaling csi-SubframePatternConfig-r12 is used to measure the high-level signaling of subframe as described instruction CSI, and using PC-SubframePatternConfig-r12 to control the high-level signaling of configuration as described indicated horsepower, the example of above-mentioned two signalings is as follows.
Csi-SubframePatternConfig-r12IE example
In above-mentioned example, csi-MeasSubframeSet1-r12 and csi-MeasSubframeSet2-r12 is the variable of application-defined interSubframePattern type, two descending sub frame set can be determined according to these two Bit Strings, these two descending sub frame set correspond respectively to two CSI and measure, wherein, in csi-MeasSubframeSet1-r12, the subframe of value corresponding to the bit of " 1 " is used as a CSI measurement, in csi-MeasSubframeSet2-r12, the subframe of value corresponding to the bit of " 1 " is used as the 2nd CSI measurement, in two Bit Strings, the subframe of value corresponding to the bit of " 0 " does not carry out CSI measurement.
PC-SubframePatternConfig-r12IE example
In above-mentioned example, PC-SubframeSet-r12 is the variable of application-defined interSubframePattern type, in PC-SubframeSet-r12, the subframe of value corresponding to the bit of " 1 " adopts first set power contorl parameters to carry out power control, and the subframe of value corresponding to the bit of " 0 " adopts the second cover power contorl parameters to carry out power control.
Step 602:UE determines the measurable descending sub frame corresponding to each CSI configuration according to the value of each bit in the Bit String in the high-level signaling of instruction CSI measurement subframe, and the value controlling each bit in the Bit String in the high-level signaling of configuration according to indicated horsepower determines the power contorl parameters that each sub-frame of uplink adopts.
Step 603:UE carries out CSI measurement according to the CSI configuration of correspondence respectively to descending sub frame measurable described in step 602, and carries out power control respectively to the sub-frame of uplink described in step 602.
Embodiment three
Step 701:UE, according to indication information, determines on-fixed sub-frame of uplink or fixing sub-frame of uplink.
Such as, suppose that UE receives high-level signaling, this high-level signaling instruction PUSCH(Physical Uplink Shared Channel) sequential obedience TDD uplink-downlink configuration x, so, fixing sub-frame of uplink is then the sub-frame of uplink of the HARQ-ACK of feeding back downlink data under this TDD uplink-downlink configuration.
Again such as: tentative standard regulation only has subframe 2 for fixing sub-frame of uplink, and so, all the other sub-frame of uplink are not just fixing sub-frame of uplink.
Step 702:UE receives the DCI in down control channel.When including TPC command in DCI format, for fixing sub-frame of uplink, the implication of TPC command is identical with existing standard; For on-fixed sub-frame of uplink, the sub-frame of uplink of a bit instruction corresponding to TPC command in TPC command belongs to sub-frame of uplink set 1 or sub-frame of uplink set 2, namely power contorl parameters is the dynamic offset of first set or the second cover, another bit indicated horsepower control of TPC command.Wherein, the sub-frame of uplink corresponding to TPC command refers to according to existing standard, the channel place subframe of TPC command effect, and the channel of effect is PUSCH or PUCCH(Physical Uplink Control Channel).Following table provides the example of TPC command instruction sub-frame set.
Table 2
Wherein: DCI format x refers in existing standard, containing any one in the DCI format of TPC command;
δ pUSCHor δ pUCCHrefer to the dynamic offset δ that in existing standard, power controls pUSCHor δ pUCCH, but the application revises, as x its value 1, y 1, x 2, y 2can be 1 ,-1,1 ,-1.
For many subframe schedulings, TPC command acting in conjunction is in dispatched multiple subframes.
In example shown in table 2, the value of the LSB in TPC command territory is used to indicate the sub-frame of uplink set belonging to sub-frame of uplink corresponding to TPC command, for " 0 ", value represents that corresponding sub-frame of uplink belongs to sub-frame of uplink set 1, adopt first set power contorl parameters, for " 1 ", value represents that corresponding sub-frame of uplink belongs to sub-frame of uplink set 2, adopt the second cover power contorl parameters; The value of the MSB in TPC command territory is used to indicate the dynamic offset of power control.Certainly, also the implication corresponding to MSB and LSB can be exchanged, its implication as long as base station and UE both sides know for sure.
Step 703: according to the instruction of TPC, UE adopts corresponding power contorl parameters to carry out power control to up channel.
Embodiment four
This example utilizes the UL Index in DCI format 0, and sub-frame set belonging to the PUSCH that instruction DCI format 0 is dispatched, namely indicates the power contorl parameters that PUSCH adopts.In existing standard, UL Index only acts on TDD uplink-downlink configuration 0, and it comprises two bits, and " 01 " instruction subframe x is scheduled, and " 10 " instruction subframe y is scheduled, and " 11 " instruction subframe x and subframe y is scheduled simultaneously.
When the PUSCH on subframe x and subframe y is scheduled simultaneously, two PUSCH channels adopt unified MCS(Modulation and Coding Scheme), therefore have reason to think, two subframes belong to same sub-frame of uplink set, adopt same set of power contorl parameters, or belong to sub-frame of uplink set 1, or belong to sub-frame of uplink set 2 namely.According to the analysis to existing many subframe schedulings, when carrying out many subframe schedulings, must be subframe 2 or 7 and other subframes by many subframe schedulings, that is, relate to many subframe schedulings, scheduling subframe 2 or 7 must be related to.Therefore, when subframe x together with subframe 2 or 7 by many subframe schedulings time, sub-frame set belonging to subframe x obeys sub-frame set belonging to subframe 2 or 7.
Based on above-mentioned analysis, in the technical scheme that the present embodiment proposes, UL Index is redefined, make UL Index indicate being scheduled subframe and the sub-frame of uplink set belonging to this subframe simultaneously.Be described for UL Index scheduling subframe 2 and/or subframe 3 below, UL Index indicates the situation of be scheduled subframe and the sub-frame of uplink set belonging to this subframe as shown in the table.
Table 3
In example shown in table 3:
MSB and LSB of UL Index command field is " 1 " and represents subframe 2(or 7) be scheduled with subframe x simultaneously, the sub-frame set belonging to subframe x is according to subframe 2(or 7) belonging to sub-frame set determine;
MSB and LSB of UL Index command field is " 0 " and represents that subframe x is scheduled, and subframe x belongs to sub-frame of uplink set 1;
Residue two states of UL Index command field represent that subframe x is scheduled respectively, and subframe 2(or 7) be scheduled, this is identical with existing standard, and the state be scheduled unlike instruction subframe x indicates subframe x to belong to sub-frame of uplink set 2 simultaneously.
Certainly, also the position corresponding to sub-frame set 1 and sub-frame set 2 and implication can be exchanged, its position and implication as long as base station and UE both sides know for sure.
Specifically, the implementation procedure of the present embodiment as shown in Figure 8, comprises the steps:
Step 801:UE receives DCI format 0 at subframe n, when uplink scheduling sequential obeys TDD uplink-downlink configuration 0, determines the sub-frame of uplink set belonging to the subframe that is scheduled and this subframe according to the UL Index in DCI format 0.
According to table 1, subframe 0,1,5,6 is fixing descending sub frame, may be used for transmitting DCI format 0.According to prior art, if receive the DCI format 0 of scheduling PUSCH in subframe 0 or subframe 5, so, the UL Index in this DCI format 0 may indicate scheduling subframe n+4 and/or n+7; If receive the DCI format 0 of scheduling PUSCH in subframe 1 or subframe 6, so, the UL Index in this DCI format 0 may indicate scheduling subframe n+6 and/or n+7, and wherein n is the descending sub frame receiving DCI format 0.The present embodiment redefines the implication of UL Index in DCI format 0, and below by an example, a point situation is described as follows:
As n=0 or 5:
If in DCI format 0, two bits of UL Index are 0, UE and should carry out corresponding PUSCH transmission at subframe n+4, and subframe n+4 belongs to sub-frame of uplink set 1;
If only have MSB(Most Significant Bit in UL Index) be " 1 ", UE should carry out corresponding PUSCH transmission at subframe n+4, and subframe n+4 belongs to sub-frame of uplink set 2;
If only have LSB(Least Significant Bit in UL Index) be " 1 ", UE should carry out corresponding PUSCH transmission at subframe n+7, and subframe n+7 belongs to sub-frame of uplink set A, if n=0, A is defined as B by other signalings, if n=5, A=2;
If only have LSB and MSB to be " 1 " in UL Index, UE should carry out corresponding PUSCH transmission at subframe n+4 and n+7, and subframe n+4 and n+7 belongs to sub-frame of uplink set A, if n=0, A are defined as B by other signalings, if n=5, A=2.
As n=1 or 6:
If in DCI format 0, two bits of UL Index are 0, UE and should carry out corresponding PUSCH transmission at subframe n+7, and subframe n+7 belongs to sub-frame of uplink set 1; .
If only have MSB(Most Significant Bit in UL Index) be " 1 ", UE should carry out corresponding PUSCH transmission at subframe n+6, and subframe n+6 belongs to sub-frame of uplink set A, A is determined by other signalings, if n=1, A are defined as B by other signalings, if n=6, A=2;
If only have LSB(Least Significant Bit in UL Index) be " 1 ", UE should carry out corresponding PUSCH transmission at subframe n+7, and subframe n+7 belongs to sub-frame of uplink set 2;
If only have LSB and MSB to be " 1 " in UL Index, UE should carry out corresponding PUSCH transmission at subframe n+6 and n+7, and subframe n+6 and n+7 belongs to sub-frame of uplink set A, if n=1, A are defined as B by other signalings, if n=6, A=2.
Step 802:UE receives adjacent cell TDD up-downgoing reference configuration, if adjacent cell TDD up-downgoing reference configuration belongs to configuration 0,1,2,6, then and B=2, correspondence is subject to the sub-frame of uplink set compared with weak jamming; If adjacent cell TDD up-downgoing reference configuration belongs to configuration 3,4,5, then B=1, correspondence is subject to more strongly disturbing sub-frame of uplink set.Here, adjacent cell TDD up-downgoing reference configuration is used as the transmission direction judging adjacent cell subframe.
The sub-frame of uplink set be scheduled belonging to subframe that step 803:UE determines according to step 802, carries out power control respectively to different sub-frame of uplink set.
Embodiment five
This example utilizes UL DAI(UpLink Downlink Assignment Index in DCI format 0) order the sub-frame of uplink set indicating and be scheduled belonging to the sub-frame of uplink of PUSCH place, namely adopted power contorl parameters.In existing standard, UL DAI acts on TDD uplink-downlink configuration 1 ~ 6, and it comprises two bits, indicates the number of sub frames discharged at the DL SPS of the be scheduled PDSCH transmission of sub-frame of uplink feeding back HARQ-ACK and PDCCH instruction.
Due in some cases, four kinds of values in the UL DAI territory in DCI format 0 are not completely defined, and that is, UL DAI territory also has several value to be redefined.Based on this, in the present embodiment, the UL DAI in some DCI format 0 is utilized to indicate the sub-frame of uplink set belonging to sub-frame of uplink at the PUSCH place that is scheduled.These DCI format 0 comprise: when uplink scheduling sequential obeys TDD uplink-downlink configuration 1, the DCI format 0 of scheduling subframe 4 and subframe 9, and when uplink scheduling sequential obeys TDD uplink-downlink configuration 6, the DCI format 0 in the subframe of all scheduling PUSCH.In these DCI format 0, the implication of UL DAI can be redefined, and such as, can be defined as shown in table 4:
Table 4UL DAI value
The parameter of the true constant dc power control of sub-frame of uplink set belonging to subframe that is scheduled that UE indicates according to UL DAI.Table 4 is only a kind of example, can in like manner draw according to table 4: when maximum PDSCH transmission and PDCCH indicate the number of sub frames N of DL SPS release to be less than 4, do not used, can be utilized value instruction sub-frame of uplink set belonging to tune frame.
Embodiment six
The present embodiment introduction utilizes the division of this community actual TDD uplink-downlink configuration or possible actual TDD uplink-downlink configuration notice UE sub-frame set.
When the actual TDD uplink-downlink configuration in this community of instruction, at least need 3 bits, 3 than peculiar 8 kinds of values, 7 kinds of TDD uplink-downlink configuration correspondence wherein 7 kinds of values respectively, these 7 kinds of values of sequence number 0 ~ 6 can be established to correspond respectively to TDD uplink-downlink configuration 0 ~ 6, and the subframe sequence number of descending sub frame set 2 under each value is set respectively, may be belonged to, be namely used as the subframe sequence number that the 2nd CSI measures, or the situation of TDD uplink-downlink configuration that adjacent cell adopts.In addition, also has a untapped value, the present embodiment allows the corresponding a kind of TDD uplink-downlink configuration of this value, and the situation of the TDD uplink-downlink configuration that may adopt as the subframe sequence number of the 2nd CSI measurement or adjacent cell under this value is set, or there is no with the instruction of this value the descending sub frame being used as the 2nd CSI measurement, all descending sub frames are all measured as a CSI, and within the time period that this indication information acts on, the 2nd CSI ignoring high-rise configuration measures.
Such as, the corresponding TDD uplink-downlink configuration 0 of value 7 can be made, and make following regulation: value 7 represents that the actual TDD uplink-downlink configuration in this community is configuration 0, and the actual TDD uplink-downlink configuration of adjacent cell is configuration 0,1,2, the one in 6; Value 0 represents that the actual TDD uplink-downlink configuration in this community is configuration 0, and the actual TDD uplink-downlink configuration of adjacent cell is configuration 3,4, the one in 5, so that UE determines the division of sub-frame of uplink set, namely determines the power contorl parameters that uplink power control adopts.
In like manner, the corresponding TDD uplink-downlink configuration 6 of value 7 can be made, and make following regulation: value 7 represents that the actual TDD uplink-downlink configuration in this community is configuration 6, and the actual TDD uplink-downlink configuration of adjacent cell is configuration 0; Value 6 represents that the actual TDD uplink-downlink configuration in this community is configuration 6, the actual TDD uplink-downlink configuration of adjacent cell is the one in configuration 1 ~ 6, according to such instruction, UE can determine whether subframe 9 is subject to comparatively weak jamming, thus determine that subframe 9 belongs to descending sub frame set 1 or descending sub frame set 2, be namely used as a CSI and measure or the 2nd CSI measurement.
Table 5 gives the example of an actual TDD uplink-downlink configuration of instruction, and in table, sequence number 7 gives actual TDD uplink-downlink configuration when being uplink-downlink configuration 4 or 5, and the subframe measured as the 2nd CSI is subframe 7.Specifically, UE receives the signaling of the actual TDD uplink-downlink configuration of instruction, determines actual TDD uplink-downlink configuration according to the sequence number of this instruction, and is used as the second subframe sequence number measured, and UE carries out the 2nd CSI and measures in the subframe measured as the 2nd CSI.
The subframe that table 5 descending sub frame set 2 comprises
Except indicating 7 kinds of TDD uplink-downlink configuration with the bit of three in the common signaling of community, a signaling can also being had to indicate UE to be disturbed situation further, if this signaling is a bit, indicating whether the subframe containing being used as the 2nd CSI measurement.When containing the subframe measured as the 2nd CSI, the 3rd row in table 5 are only effective, otherwise not can be used as the subframe of the 2nd CSI measurement, and all descending sub frames are all measured as a CSI, within the time period that this indication information acts on, the 2nd CSI ignoring high-rise configuration measures.
Can specify which kind of TDD uplink-downlink configuration is value 7 indicate actually by high-level signaling, and when regulation value 7 indicates the value of same configuration to combine with another, the implication representated by two values.
In addition, the actual TDD uplink-downlink configuration that this community can be indicated possible with 3 bits in physical layer.3 than peculiar 8 kinds of values, make each value one or more TDD uplink-downlink configuration corresponding respectively, these one or more TDD uplink-downlink configuration comprise the TDD uplink-downlink configuration of this community reality, and specify the descending sub frame that each value is corresponding respectively, the subframe that UE just can comprise according to this indication information determination descending sub frame set 2, is namely used as the subframe that the 2nd CSI measures.The subframe being used as the 2nd CSI measurement indicated according to which is as being subject to the subframe the highest compared with the descending sub frame probability of weak jamming, the so-called the highest finger of descending sub frame probability as being subject to compared with weak jamming: as descending sub-frame set 2 includes subframe, then necessarily comprise this subframe.
Following table gives an example.It is indicated in table that to be used as subframe that the 2nd CSI measures be the more weak descending sub frame that is interfered obtained according to the actual TDD uplink-downlink configuration of this community and adjacent cell.
The subframe that table 6 descending sub frame set 2 comprises
Embodiment seven
The present embodiment describes several preferably by the scheme of physical layer signaling instruction sub-frame set dividing condition.
For often kind of actual TDD uplink-downlink configuration of this community, the different TDD uplink-downlink configuration of adjacent cell may be identical on the impact of the upstream or downstream subframe be disturbed.The actual TDD uplink-downlink configuration of such as this community is configuration 2, and the actual TDD uplink-downlink configuration of adjacent cell is configuration 0,1, when 6, from the angle of sub-frame of uplink, subframe 2 and subframe 7 are all be subject to the sub-frame of uplink compared with weak jamming, do not have subframe to belong to and are subject to more strongly disturbing sub-frame of uplink set; From the angle of descending sub frame, subframe 3 and subframe 8 are all be subject to the descending sub frame compared with weak jamming, subframe 0,1, and 5,6 is belong to be subject to more strongly disturbing descending sub frame set.In order to reduce the load of indication signaling, if the various combination of the actual TDD uplink-downlink configuration of this community and adjacent cell, correspond to identical descending sub frame set or the division of sub-frame of uplink set, then adopting identical signaling content to indicate.
The first is scheme preferably:
Except in the common signaling of community, three bits indicate 7 kinds of configurations, signaling instruction UE can also be had to be disturbed situation, the situation that is disturbed indicates by the TDD uplink-downlink configuration of dominant interference adjacent cell.Based on the analysis of the preceding paragraph, for each actual TDD uplink-downlink configuration of this community, the uplink/downlink sub-frame set being subject to comparatively strong/weak jamming obtained under different adjacent cell TDD uplink-downlink configuration is identical, at this moment, can only configure representatively with one of them, instruction adjacent cell is to the interference of this community, and indicated configuration is adjacent cell TDD up-downgoing reference configuration.Following table gives an example, in the group comprising 2 bits, common signaling is used to indicate the TDD up-downgoing reference configuration of adjacent cell, the command field of this signaling is the first row of table 7, in conjunction with the actual TDD uplink-downlink configuration of this community, find the corresponding entry of form, this sequence number is adjacent cell TDD up-downgoing reference configuration.Adjacent cell up-downgoing reference configuration is designated as the subframe that up this cell downlink subframe is defined as being used as the 2nd CSI measurement by UE, adjacent cell up-downgoing reference configuration is designated as the subframe that descending this cell downlink subframe is defined as being used as a CSI measurement, up this cell uplink subframe is designated as to adjacent cell up-downgoing reference configuration and adopts first set power contorl parameters, descending this cell uplink subframe is designated as to adjacent cell up-downgoing reference configuration and adopts the second cover power contorl parameters.
Table 7 adjacent cell TDD up-downgoing reference configuration
The second is scheme preferably:
The subframe that direct indicating downlink sub-frame set 2 comprises, is namely used as the subframe that the 2nd CSI measures.Such as: can determine based on following constraint the subframe that descending sub frame set 2 comprises: indicate two subframes at most in each radio frames, if two subframes, between two subframes, be spaced apart 5 milliseconds; In dynamic self-adapting TDD system, subframe 3,4,8,9,7 subframes that can be used as descending sub frame set 2, are namely subject to the descending sub frame compared with weak jamming; If subframe 8 belongs to descending sub frame set 2, then subframe 3 necessarily belongs to descending sub frame set 2, and therefore, the situation of instruction subframe 8 is excluded separately, and such one has six kinds of situations, can represent with 3 bits, is defined as follows the content of table sequence number 0 ~ 5 correspondence.Two tables provide two examples below.
The descending sub frame that table 8 descending sub frame set 2 comprises
Sequence number The descending sub frame that descending sub frame set 2 comprises
0 Subframe 4
1 Subframe 4, subframe 9
2 Subframe 9
3 Subframe 3, subframe 8
4 Subframe 3
5 Subframe 7
6 Nothing
7 Nothing
The descending sub frame that table 9 descending sub frame set 2 comprises
Sequence number The descending sub frame that descending sub frame set 2 comprises
0 Subframe 4
1 Subframe 9
2 Subframe 3
3 Subframe 7
The third is scheme preferably:
To the descending sub frame compared with weak jamming be subject to, be namely used as the subframe that the 2nd CSI measures, and adjacent cell TDD up-downgoing reference configuration combine expression.Be subject to the instruction of the descending sub frame compared with weak jamming, still the situation of the second preferably described in scheme can be adopted, the wherein TDD uplink-downlink configuration combination of corresponding this community multiple of some situation and adjacent cell, the set that different combinations has different sub-frame of uplink divides, when each situation of sequence number in table 80 ~ 5 correspondence, when having the set of different sub-frame of uplink to divide, then adopt different sequence number instructions; When not belonging to the subframe of descending sub frame set 2, when not namely being subject to the descending sub frame compared with weak jamming, all descending sub frames are and are subject to more strongly disturbing subframe, within the time period that this indication information acts on, the 2nd CSI ignoring high-rise configuration measures, and indicates 7 kinds of adjacent cell TDD up-downgoing reference configuration by different sequence numbers.Following table gives an example, and when covering all configuration combinations of this community and adjacent cell, the set of descending sub frame and sub-frame of uplink divides, and only needs 4 bits can represent that 7*7=49 kind combines, has effectively saved the precious resources of physical layer control signal.
Table 10 is subject to the descending sub frame compared with weak jamming
Below by reference to the accompanying drawings the application's method has been described in detail, below the composition structure and working principle of brief description the application equipment.
Fig. 9 is the composition structural representation of the better equipment of the application one.This equipment corresponds to the method that the application carries out power control, and this equipment comprises: indication information acquisition module and power control module, wherein:
Described indication information acquisition module, for obtaining indication information;
Described power control module, for adopting corresponding power contorl parameters to carry out power control according to described indication information to corresponding subframe.
Carry out the method for CSI measurement corresponding to the application, the application also provides a kind of equipment, and this equipment can comprise: indication information acquisition module and CSI measurement module, wherein:
Described indication information acquisition module, for obtaining indication information;
Described CSI measurement module, for according to described indication information to corresponding subframe carry out the one CSI measure or the 2nd CSI measure.
According to technique scheme disclosed in the present application, can by less resource, UE is made to know power contorl parameters corresponding to each subframe and/or CSI measurement parameter, thus adopt corresponding power contorl parameters to carry out power control respectively to corresponding subframe, or corresponding CSI measurement is carried out to corresponding subframe, improve and carry out the accuracy that CSI measures and power controls, and improve the performance of system.In addition, the such scheme that the application proposes, changes very little to existing equipment or system, can not affect the compatibility of equipment, and it realizes not only simple but also efficient.
The foregoing is only the preferred embodiment of the application, not in order to limit the application, within all spirit in the application and principle, any amendment made, equivalent replacements, improvement etc., all should be included within scope that the application protects.

Claims (14)

1. carry out a method for power control, it is characterized in that, comprising:
A, UE obtain indication information;
B, UE adopt corresponding power contorl parameters to carry out power control according to described indication information to corresponding subframe.
2. method according to claim 1, is characterized in that:
Described A comprises: UE receives the high-level signaling of instruction physical layer configurations, obtains the Bit String of the power contorl parameters be used to indicate corresponding to each subframe from described high-level signaling;
Described B comprises: UE determines according to the value of bit each in described Bit String the power contorl parameters that corresponding sub-frame of uplink adopts.
3. method according to claim 1, is characterized in that:
Described A comprises: UE receives the physical layer signaling that length is N number of bit; Wherein, N equals the quantity of flexible sub-frame, and described N number of bit corresponds respectively to a flexible sub-frame;
Described B comprises: UE, according to the actual TDD uplink-downlink configuration of the value of bit each in described physical layer signaling and this community, determines the power contorl parameters that corresponding flexible sub-frame adopts.
4. method according to claim 1, is characterized in that:
Described A comprises: UE receives the high-level signaling that indicated horsepower controls configuration, obtains the Bit String of the power contorl parameters be used to indicate corresponding to each sub-frame of uplink from described high-level signaling;
Described B comprises: UE determines according to the value of bit each in described Bit String the power contorl parameters that corresponding sub-frame of uplink adopts.
5. method according to claim 1, is characterized in that:
The method comprises further: UE determines on-fixed sub-frame of uplink or fixing sub-frame of uplink;
Described A comprises: UE receives DCI, from described DCI, obtain TPC command;
Described B comprises: if the sub-frame of uplink corresponding to described TPC command is on-fixed sub-frame of uplink, UE determines according to the value of described TPC command bit the power contorl parameters that described on-fixed sub-frame of uplink adopts, and the dynamic offset that the power of on-fixed sub-frame of uplink controls according to another bit determination of described TPC command.
6. method according to claim 1, is characterized in that:
Described A comprises: UE receives DCI format 0, from described DCI format 0, obtain UL Index;
Described B comprises: UE to determine to be scheduled the power contorl parameters that subframe and this subframe adopt according to the value of described UL Index.
7. method according to claim 1, is characterized in that:
Described A comprises: UE receives DCI format 0, from described DCI format 0, obtain UL DAI;
Described B comprises: UE determines according to the value of described UL DAI the power contorl parameters that the sub-frame of uplink being scheduled PUSCH place adopts.
8. carry out a method for CSI measurement, it is characterized in that, comprising:
A, UE obtain indication information;
B, UE measure as a CSI measurement or the 2nd CSI corresponding subframe according to described indication information.
9. method according to claim 8, is characterized in that:
The length of described indication information is 3 bits, indicates the actual TDD uplink-downlink configuration of this community; Wherein, the corresponding 8 kinds of values of described 3 bits, 7 kinds of values wherein correspond respectively to 7 kinds of TDD uplink-downlink configuration, and remaining a kind of value corresponds at least one of 7 kinds of TDD uplink-downlink configuration, and often kind of value also has corresponding descending sub frame;
Described B comprises: UE determines the actual TDD uplink-downlink configuration of this community according to the value of described indication information, and determines that descending sub frame corresponding to described value is used as the 2nd CSI and measures.
10. method according to claim 9, is characterized in that:
Described indication information also comprises the indication information whether having the subframe measured as the 2nd CSI;
Described B comprises: UE is the actual TDD uplink-downlink configuration that the value of the indication information of 3 bits determines this community according to described length, and described be used to indicate whether have the instruction of the indication information of the subframe measured as the 2nd CSI to have a subframe measured as the 2nd CSI time, determine that described length is that descending sub frame corresponding to the value of the indication information of 3 bits is used as the 2nd CSI and measures.
11. methods according to claim 8, is characterized in that:
The length of described indication information is 3 bits, indicates the actual TDD uplink-downlink configuration that this community is possible; Wherein, the corresponding 8 kinds of values of described 3 bits, often kind of value corresponding N1 kind TDD uplink-downlink configuration, and a corresponding N2 subframe; Wherein, N1 and N2 is more than or equal to 0, and described N1 kind TDD uplink-downlink configuration comprises the TDD uplink-downlink configuration of this community reality;
Described B comprises: UE, according to the value of described indication information, determines that N2 subframe corresponding to described value is used as the 2nd CSI and measures.
12. methods according to claim 8, is characterized in that:
Described indication information comprises the indication information that indication information that length is 3 bits and length are N3 bit; Described length is the actual TDD uplink-downlink configuration that the indication information of 3 bits indicates this community; N3 is more than or equal to 1;
Described B comprises: UE is the actual TDD uplink-downlink configuration that the value of the indication information of 3 bits determines this community according to described length, and be the TDD up-downgoing reference configuration of the indication information determination adjacent cell of N3 bit in conjunction with described length, adjacent cell up-downgoing reference configuration is designated as up this cell downlink subframe and is defined as being used as the subframe that the 2nd CSI measures by UE.
13. carry out the method described in requirement 8 according to right, it is characterized in that:
Described indication information is used to indicate the descending sub frame measured as the 2nd CSI;
Described B comprises: the descending sub frame indicated by described indication information is defined as the subframe being used as the 2nd CSI measurement by UE;
Or described indication information is used to indicate the TDD up-downgoing reference configuration of descending sub frame and the adjacent cell measured as the 2nd CSI;
Described B comprises: the descending sub frame indicated by described indication information is defined as being used as the subframe that the 2nd CSI measures by UE, and according to the TDD up-downgoing reference configuration of indication information determination adjacent cell.
14. an equipment, it is characterized in that, comprising: indication information acquisition module and power control module, wherein:
Indication information acquisition module, for obtaining indication information;
Power control module, for adopting corresponding power contorl parameters to carry out power control according to described indication information to corresponding subframe.
CN201310308732.2A 2013-07-22 2013-07-22 Method for power control, and method and device for CSI measurements Pending CN104333899A (en)

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WO2017173920A1 (en) * 2016-04-06 2017-10-12 华为技术有限公司 Power control method and device
WO2019001161A1 (en) * 2017-06-29 2019-01-03 华为技术有限公司 Power control method and related device
WO2019071625A1 (en) * 2017-10-14 2019-04-18 Oppo广东移动通信有限公司 Data transmission method, terminal device, and network device
CN109923906A (en) * 2016-11-14 2019-06-21 瑞典爱立信有限公司 The UE emission control parameter adaptive being overlapped under TTI

Cited By (11)

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Publication number Priority date Publication date Assignee Title
WO2017173920A1 (en) * 2016-04-06 2017-10-12 华为技术有限公司 Power control method and device
CN107277908A (en) * 2016-04-06 2017-10-20 华为技术有限公司 A kind of Poewr control method and equipment
US10595279B2 (en) 2016-04-06 2020-03-17 Huawei Technologies Co., Ltd. Power control method and device
CN109923906A (en) * 2016-11-14 2019-06-21 瑞典爱立信有限公司 The UE emission control parameter adaptive being overlapped under TTI
CN109923906B (en) * 2016-11-14 2022-04-26 瑞典爱立信有限公司 UE transmission control parameter adaptation under overlapping TTIs
US11323232B2 (en) 2016-11-14 2022-05-03 Telefonaktiebolaget Lm Ericsson (Publ) UE emission control parameter adaption under overlapping TTIs
WO2019001161A1 (en) * 2017-06-29 2019-01-03 华为技术有限公司 Power control method and related device
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CN109219121B (en) * 2017-06-29 2020-12-01 上海华为技术有限公司 Power control method and related equipment
WO2019071625A1 (en) * 2017-10-14 2019-04-18 Oppo广东移动通信有限公司 Data transmission method, terminal device, and network device
US11368924B2 (en) 2017-10-14 2022-06-21 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Data transmission method, terminal device, and network device

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