CN103096349A - Method and device for dynamically determining USTP value - Google Patents

Method and device for dynamically determining USTP value Download PDF

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CN103096349A
CN103096349A CN2011103506806A CN201110350680A CN103096349A CN 103096349 A CN103096349 A CN 103096349A CN 2011103506806 A CN2011103506806 A CN 2011103506806A CN 201110350680 A CN201110350680 A CN 201110350680A CN 103096349 A CN103096349 A CN 103096349A
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ustp
value
dynamic
mobile radio
radio station
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CN103096349B (en
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周宝龙
赵生捷
张雷
曹伟
林凌峰
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Nokia Shanghai Bell Co Ltd
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Alcatel Lucent Shanghai Bell Co Ltd
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Abstract

The invention aims at providing a method and a device for dynamically determining USTP value. According to the technical scheme, a dynamic determining device comprises an acquiring device, a determining device and a sending device, wherein the acquiring device is used for acquiring communication channel environment information of a mobile station corresponding to a base station, the determining device is used for determining present dynamic USTP value according to the communication channel environment information, and the sending device is used for sending the determined USTP value to the mobile station. The invention further provides a period regulation device which comprises a receiving device and a regulation device, wherein the receiving device is used for receiving the dynamic USTP, and the regulation device is used for regulating period of sending SRS by the mobile station according to the dynamic USTP. The method and the device can dynamically determine the USTP value, and a transmission channel formed by CSI of the mobile station and a downlink connection beam is enabled to achieve superior matching.

Description

A kind of method and apparatus of dynamically determining the USTP value
Technical field
The present invention relates to the communications field, relate in particular to a kind of method and apparatus of dynamically determining the USTP value.
Background technology
In current TDD Beam Forming System, the base station receives the channel detection signal (SRS that mobile radio station regularly sends, sounding reference signal), and assess the channel condition information (CSI of mobile radio station based on described SRS, and generate the beam vector of descending connection data transmission by the channel reciprocity of TDD system with described CSI channel state information).But due to the restriction of TDD frame structure and the expense of up connection detecting pilot frequency, understand generation CSI delay and channel estimating error in inevitable assessment at CSI and use procedure.In the system of actual use usually, as in TDD LTE system, if adopt 3GPPR8 or R9 agreement, survey time domain periodic quantity (USTP by the fixing up connection that second layer dispatching device controls the CSI delay for each mobile radio station configuration, uplink sounding time-domain period), but very fast for the residing channel circumstance variation in high-speed mobile station, the mechanism of the USTP that employing is fixing can cause the throughput of the reduction Beam Forming System of very big degree; And if adopt 3GPP R10 agreement, the time domain periodic quantity of SRS is by the 3rd layer of configuration, and can not change according to the change of channel circumstance, the Optimum Matching between the CSI that can not guarantee equally transmitting device and the descending transmission channel that is connected wave beam formation.
Summary of the invention
The purpose of this invention is to provide a kind of method and apparatus of dynamically determining the USTP value.
According to an aspect of the present invention, provide a kind of dynamic definite device for determining dynamic USTP, wherein, described dynamically definite device is contained in the base station, and wherein, described dynamically definite device comprises:
Deriving means is for the channel environmental information of obtaining the mobile radio station corresponding with described base station;
Determine device, be used for determining current dynamic USTP value according to described channel environmental information;
Dispensing device is used for determined dynamic USTP value is sent to described mobile radio station.
According to another aspect of the present invention, also provide the dynamic USTP value of a kind of basis to adjust the cycle adjusting device that sends the SRS cycle, wherein, described cycle adjusting device is contained in mobile radio station, and wherein, described adjusting device comprises:
Receiving system receives described dynamic USTP, and wherein, described dynamic USTP value is from the base station corresponding with described mobile radio station;
Adjusting device adjusts according to described dynamic USTP the cycle that described mobile radio station sends SRS.
According to another aspect of the present invention, also provide a kind of method of dynamically determining the USTP value in the base station, wherein, said method comprising the steps of:
A obtains the channel environmental information of the mobile radio station corresponding with described base station;
B determines current USTP value according to described channel environmental information;
C is sent to described mobile radio station with described dynamic USTP value.。
According to another aspect of the present invention, also provide a kind of method of adjusting the cycle that sends SRS in mobile radio station according to dynamic USTP value, wherein, said method comprising the steps of:
-receive described dynamic USTP value, wherein, described dynamic USTP value is from the base station corresponding with described mobile radio station;
-adjust according to described dynamic USTP value the cycle that described mobile radio station sends SRS.
According to a further aspect of the invention, also provide a kind of communication system, described communication system comprises base station and the mobile radio station corresponding with described base station, and wherein, described base station comprises the described device of dynamically determining, described mobile radio station comprises described cycle adjusting device.
Compared with prior art, the present invention has the following advantages: can channel circumstance residing according to mobile radio station according to base station of the present invention, adjust the value of USTP, and the value of described USTP is sent to mobile radio station, adjust the cycle that self sends SRS for mobile radio station according to the value of described USTP.Thereby can make the CSI of mobile radio station realize more excellent coupling with the descending transmission channel that is connected wave beam formation.
Description of drawings
By reading the detailed description that non-limiting example is done of doing with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 is the structural representation of a kind of communication system of the present invention;
Fig. 2 of the present inventionly a kind ofly dynamically determines USTP value in the base station, and adjusts the method flow diagram in the cycle of transmission SRS in mobile radio station according to dynamic USTP value.
In accompanying drawing, same or analogous Reference numeral represents same or analogous parts.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 has illustrated the structural representation of a kind of communication system of the present invention.Described communication system includes but not limited to be the wireless communication system based on 3GPP LTE.Described communication system comprises base station and mobile radio station.Wherein, described base station includes but not limited to BS, e-NodeB, Home eNodeB, macro base station etc.Described mobile radio station comprises and can with wireless mode directly or indirectly and the electronic installation of base station communication, include but not limited to mobile phone, PDA etc.Preferably, described communication system is many single-input single-output system (SISO system)s, and wherein, described base station comprises a plurality of antennas, and described mobile radio station comprises at least one antenna.
Need to prove, it should be appreciated by those skilled in the art that described communication system, base station and mobile radio station are not to be limited with described.
Base station according to the present invention comprises dynamically determines device 1, and wherein, described dynamically definite device comprises the first deriving means 11, determines device 12 and dispensing device 13.Mobile radio station according to the present invention comprises cycle adjusting device 2, and wherein, described cycle adjusting device 2 comprises receiving system 21 and adjusting device 22.
Deriving means 11 obtains the channel environmental information of the mobile radio station corresponding with described base station.Wherein, described channel environmental information comprises following at least one information: 1) pilot tone signal to noise ratio information; 2) maximum doppler frequency information.
Wherein, those skilled in the art should determine to obtain according to actual conditions and demand the mode of the channel environmental information of the mobile radio station corresponding with described base station, for example, adopt current LTE product to estimate and obtain the pilot tone signal to noise ratio information of mobile radio station and/or the mode of maximum doppler frequency information etc., not repeating them here.
Then, determine that device 12 determines current dynamic USTP value according to described channel environmental information.
Particularly, determine device 12 according to the corresponding relation between predefined channel environmental information and USTP value, determine current dynamic USTP value.Preferably, based on predetermined formula, calculate and obtain current dynamic USTP value according to described channel environmental information.
For example, when deriving means 11 obtains pilot tone signal to noise ratio information, determine current dynamic USTP value according to the formula of the predetermined USTP value that calculating obtains according to pilot tone signal to noise ratio information.
More preferably, described channel environmental information comprises described pilot tone signal to noise ratio information and described maximum doppler frequency information, and wherein, described definite device 11 is determined current dynamic USTP value according to following formula:
Figure BSA00000608335200041
Wherein, described κ is the frequency pilot sign number under each data symbol of being determined by the control system of described base station,
Figure BSA00000608335200042
Determine according to following formula:
Figure BSA00000608335200043
Wherein, A = 1 2 6 ( π F d T s ) 4 ( γ p κ ) 2 - 125 6192 ( π F d T s ) 2 ( γ p κ ) 4 - 125 1728 ( γ p κ ) 3 + 1 2 3 ( π F d T s ) 2 γ p κ 3 , B=144 (γ pκ) 2,
Figure BSA00000608335200045
Wherein, described F dBe maximum doppler frequency information, γ pBe pilot tone signal to noise ratio information.
Dispensing device 13 is sent to described mobile radio station with determined USTP value.
Then, be arranged in the receiving system 21 that the cycle adjusting device 2 of mobile radio station comprises and receive described dynamic USTP values.
Then, adjusting device 22 adjusts according to described dynamic USTP value the cycle that described mobile radio station sends SRS.
According to the present invention program, the base station can channel circumstance residing according to mobile radio station, adjusts the value of USTP, and the value of described USTP is sent to mobile radio station, adjusts the cycle that self sends SRS according to the value of described USTP for mobile radio station.Thereby can make the CSI of mobile radio station realize more excellent coupling with the descending transmission channel that is connected wave beam formation.
Fig. 2 illustrated and of the present inventionly a kind ofly dynamically determined USTP value in the base station, and adjusts the method flow diagram in the cycle of transmission SRS in mobile radio station according to dynamic USTP value.The method according to this invention comprises step S11, step S12, step S13, step S21 and step S22.
In step S11, determine that dynamically device obtains the channel environmental information of the mobile radio station corresponding with described base station.Wherein, described channel environmental information comprises following at least one information: 1) pilot tone signal to noise ratio information; 2) maximum doppler frequency information.
Wherein, those skilled in the art should determine to obtain according to actual conditions and demand the mode of the channel environmental information of the mobile radio station corresponding with described base station, for example, adopt current LTE product to estimate and obtain the pilot tone signal to noise ratio information of mobile radio station and/or the mode of maximum doppler frequency information etc., not repeating them here.
Then, in step S12, dynamically definite device is determined current dynamic USTP value according to described channel environmental information.
Particularly, dynamically definite device according to the corresponding relation between predefined channel environmental information and USTP value, is determined current dynamic USTP value.Preferably, determine that dynamically device based on predetermined formula, calculates and obtain current dynamic USTP value according to described channel environmental information.
For example, when dynamically determining that device obtains pilot tone signal to noise ratio information in step S11, determine current dynamic USTP value according to the formula of the predetermined USTP value that calculating obtains according to pilot tone signal to noise ratio information.
More preferably, described channel environmental information comprises described pilot tone signal to noise ratio information and described maximum doppler frequency information, and described dynamically definite device is determined current dynamic USTP value according to following formula:
Figure BSA00000608335200051
Wherein, described κ is the frequency pilot sign number under each data symbol of being determined by the control system of described base station, Determine according to following formula:
Figure BSA00000608335200053
Wherein, A = 1 2 6 ( π F d T s ) 4 ( γ p κ ) 2 - 125 6192 ( π F d T s ) 2 ( γ p κ ) 4 - 125 1728 ( γ p κ ) 3 + 1 2 3 ( π F d T s ) 2 γ p κ 3 , B=144 (γ pκ) 2, Wherein, described F dBe maximum doppler frequency information, γ pBe pilot tone signal to noise ratio information.
Then, in step S13, determine that dynamically device is sent to described mobile radio station with determined USTP value.
Then, in step S21, the cycle adjusting device that is arranged in mobile radio station receives described dynamic USTP value.
Then, the cycle adjusting device adjusts according to described dynamic USTP value the cycle that described mobile radio station sends SRS.
According to the present invention program, the base station can channel circumstance residing according to mobile radio station, adjusts the value of USTP, and the value of described USTP is sent to mobile radio station, adjusts the cycle that self sends SRS according to the value of described USTP for mobile radio station.Thereby can make the CSI of mobile radio station realize more excellent coupling with the descending transmission channel that is connected wave beam formation.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and in the situation that do not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, therefore is intended to be included in the present invention dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limit related claim.In addition, obviously other unit or step do not got rid of in " comprising " word, and odd number is not got rid of plural number.A plurality of unit of stating in system's claim or device also can be realized by software or hardware by a unit or device.The first, the second word such as grade is used for representing title, and does not represent any specific order.

Claims (10)

  1. One kind be used for to determine dynamic USTP dynamically determine device, wherein, describedly determine that dynamically device is contained in the base station, wherein, describedly determine that dynamically device comprises:
    Deriving means is for the channel environmental information of obtaining the mobile radio station corresponding with described base station;
    Determine device, be used for determining current dynamic USTP value according to described channel environmental information;
    Dispensing device is used for determined dynamic USTP value is sent to described mobile radio station.
  2. 2. according to claim 1ly dynamically determine device, wherein, described channel environmental information comprises following at least one:
    -pilot tone signal to noise ratio information;
    -maximum doppler frequency information.
  3. 3. according to claim 2ly dynamically determine device, wherein, described channel environmental information comprises described pilot tone signal to noise ratio information and described maximum doppler frequency information, and wherein, described definite device is determined current dynamic USTP value according to following formula:
    USTP = ( 1 + κ ) n d opt ;
    Wherein, described κ is the frequency pilot sign number under each data symbol of being determined by the control system of described base station, Determine according to following formula: Wherein: A = 1 2 6 ( π F d T s ) 4 ( γ p κ ) 2 - 125 6192 ( π F d T s ) 2 ( γ p κ ) 4 - 125 1728 ( γ p κ ) 3 + 1 2 3 ( π F d T s ) 2 γ p κ 3 , B=144 (γ pκ) 2,
    Figure FSA00000608335100015
    Wherein, described F dBe maximum doppler frequency information, γ pBe pilot tone signal to noise ratio information.
  4. 4. the dynamic USTP value of basis is adjusted the cycle adjusting device that sends the SRS cycle, and wherein, described cycle adjusting device is contained in mobile radio station, and wherein, described adjusting device comprises:
    Receiving system receives described dynamic USTP, and wherein, described dynamic USTP value is from the base station corresponding with described mobile radio station;
    Adjusting device adjusts according to described dynamic USTP the cycle that described mobile radio station sends SRS.
  5. 5. communication system, described communication system comprises base station and the mobile radio station corresponding with described base station, wherein, described base station comprises the device of dynamically determining as described in any one in claims 1 to 3, and described mobile radio station comprises cycle adjusting device as claimed in claim 4.
  6. 6. communication system according to claim 4, described communication system is many single-input single-output system (SISO system)s.
  7. 7. method of dynamically determining the USTP value in the base station wherein, said method comprising the steps of:
    A obtains the channel environmental information of the mobile radio station corresponding with described base station;
    B determines current dynamic USTP value according to described channel environmental information;
    C is sent to described mobile radio station with described dynamic USTP value.
  8. 8. method according to claim 7, wherein, described channel environmental information comprises following at least one information:
    -pilot tone signal to noise ratio information;
    The maximum doppler frequency information of-described mobile radio station.
  9. 9. method according to claim 8, wherein, described channel environmental information comprises described pilot tone signal to noise ratio information and described maximum doppler frequency information, wherein, determines current dynamic USTP value according to following formula in described step b:
    USTP = ( 1 + κ ) n d opt ;
    Wherein, described κ is the frequency pilot sign number under each data symbol of being determined by the control system of described base station,
    Figure FSA00000608335100022
    Determine according to following formula:
    Figure FSA00000608335100023
    Wherein: A = 1 2 6 ( π F d T s ) 4 ( γ p κ ) 2 - 125 6192 ( π F d T s ) 2 ( γ p κ ) 4 - 125 1728 ( γ p κ ) 3 + 1 2 3 ( π F d T s ) 2 γ p κ 3 , B=144 (γ pκ) 2, Wherein, described F dBe maximum doppler frequency information, γ pBe pilot tone signal to noise ratio information.
  10. 10. method of adjusting the cycle that sends SRS in mobile radio station according to dynamic USTP value wherein, said method comprising the steps of:
    -receive described dynamic USTP value, wherein, described dynamic USTP value is from the base station corresponding with described mobile radio station;
    -adjust according to described dynamic USTP value the cycle that described mobile radio station sends SRS.
CN201110350680.6A 2011-11-08 A kind of method and apparatus being dynamically determined USTP value Active CN103096349B (en)

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* Cited by examiner, † Cited by third party
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WO2023116535A1 (en) * 2021-12-20 2023-06-29 中兴通讯股份有限公司 Srs resource allocation method and apparatus, and computer-readable storage medium

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WO2010140298A1 (en) * 2009-06-02 2010-12-09 パナソニック株式会社 Wireless communication apparatus and wireless communication method
WO2011083986A2 (en) * 2010-01-07 2011-07-14 Samsung Electronics Co., Ltd. Apparatus and method for enhancing features of uplink reference signals
CN102457359A (en) * 2010-10-28 2012-05-16 上海贝尔股份有限公司 Sounding reference symbol sending method and base station

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060056533A1 (en) * 2004-09-10 2006-03-16 Molisch Andreas F Minimizing feedback rate for channel state information in MIMO systems
CN101626588A (en) * 2008-07-11 2010-01-13 财团法人工业技术研究院 Apparatus and method for channel state information feedback
WO2010140298A1 (en) * 2009-06-02 2010-12-09 パナソニック株式会社 Wireless communication apparatus and wireless communication method
WO2011083986A2 (en) * 2010-01-07 2011-07-14 Samsung Electronics Co., Ltd. Apparatus and method for enhancing features of uplink reference signals
CN102457359A (en) * 2010-10-28 2012-05-16 上海贝尔股份有限公司 Sounding reference symbol sending method and base station

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023116535A1 (en) * 2021-12-20 2023-06-29 中兴通讯股份有限公司 Srs resource allocation method and apparatus, and computer-readable storage medium

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Patentee after: Shanghai NOKIA Baer Limited by Share Ltd

Address before: 201206 Pudong Jinqiao Ning Road, Shanghai, No. 388

Patentee before: Shanghai Alcatel-Lucent Co., Ltd.