CN101848538A - Method and equipment for determining SRS transmission bandwidth - Google Patents
Method and equipment for determining SRS transmission bandwidth Download PDFInfo
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- CN101848538A CN101848538A CN200910080930A CN200910080930A CN101848538A CN 101848538 A CN101848538 A CN 101848538A CN 200910080930 A CN200910080930 A CN 200910080930A CN 200910080930 A CN200910080930 A CN 200910080930A CN 101848538 A CN101848538 A CN 101848538A
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Abstract
The invention provides a method and access network equipment for determining sounding reference signal SRS transmission bandwidth. The method comprises the following steps: the access network equipment determines an SRS transmission bandwidth collection according to system scheduling bandwidth; and the access network equipment reports PHR information according to user equipment UE type information and/ or UE power space and determines the SRS transmission bandwidth of the UE from the SRS transmission bandwidth collection. The access network equipment comprises a configuration module and a determination module, wherein the configuration module is used for determining the SRS transmission bandwidth collection according to the system scheduling bandwidth; and the determining module is used for reporting the PHR information according to the user equipment UE type information and/ or the UE power space and determining the SRS transmission bandwidth of the UE from the SRS transmission bandwidth collection. The method and the access network equipment provided by the invention can ensure that CQI information is updated in time on the premise of ensuring the the SRS signal detection performance of the UE and CQI measurement precision.
Description
Technical field
The present invention relates generally to the mobile communication technology field, relate in particular to the SRS transmission bandwidth of determining subscriber equipment.
Background technology
At LTE (Long Term Evolution, Long Term Evolution) in the system, in order to support frequency selective scheduling, UE (User Equipment, subscriber equipment) SRS (Sounding Reference Signal need sent in the scope of its data transfer bandwidth, survey and use reference signal), to obtain up CQI (Channel Quality Indicator, channel quality indication) information.In addition, because the restriction and the position distribution of UE in the sub-district of terminal transmit power is at random,,, then certainly exist the phenomenon that UE can not once finish the SRS transmission in the SRS band width configuration scope of sub-district because path loss is very big as UE during away from the base station.
In the LTE system, maximum supported up-downgoing system bandwidth reaches 20MHz.At present standard has been stipulated the SRS transmission bandwidth supported under the various bandwidth according to the up-link bandwidth, and wherein the SRS transmission bandwidth supported of 20MHz system is as shown in table 1.
The SRS transmission bandwidth configuration that system supported under the table 1:20MHz bandwidth
In the table 1, the SRS band width configuration is a cell parameter, is used to determine SRS maximum transmission bandwidth that current area is supported and used multilevel code tree structure.With SRS band width configuration 0 is example, and this sub-district is supported the SRS transmission bandwidth of 4 kinds of UE altogether, i.e. 96,48,24,4 SRS band width configuration BSRS=0 of corresponding UE respectively, 1,2,3 situation.Specifically select which kind of SRS transmission bandwidth for use as for UE, and which type of principle to determine that standard does not provide regulation, and relevant with the realization of equipment according to.The open scheme of the SRS transmission bandwidth of determining each UE in how still has nothing to do at present.
Because the restriction of UE transmitting power and the randomness of UE position, if with the SRS band width configuration of UE is sub-district SRS maximum transmission bandwidth, then must cause PSD (the Power Spectrum Density on each subcarrier, power spectral density) very low, thereby the signal to noise ratio on each subcarrier is very low, therefore must influence the performance of SRS input and carry out the precision that CQI measures thus.If with the SRS band width configuration of UE for very little, as at every turn only at 4 PRB (Physical Resource Block, Physical Resource Block) goes up emission SRS signal, though the CQI measurement performance on each subband can be guaranteed, but measure needed SRS the number of transmissions and become many owing to finish full bandwidth CQI, under certain SRS transmission cycle, must cause finishing the required time increase of full bandwidth CQI information updating, then occur easily because the untimely situation of CQI information updating, the situation that can cause CQI information not catch up with channel variation trend like this occurs, thereby influences the performance of frequency selective scheduling.
Therefore, need a kind of scheme of definite SRS transmission bandwidth at present, can under the prerequisite that guarantees the CQI certainty of measurement, guarantee the frequency requirement that CQI upgrades.
Summary of the invention
In order one of to address the above problem, the present invention proposes the method for a kind of definite detection with reference signal SRS transmission bandwidth, may further comprise the steps: A, access network equipment are determined the set of SRS transmission bandwidth according to the system call bandwidth; B, described access network equipment report PHR information according to the power space of user equipment (UE) type information and/or described UE, determine the SRS transmission bandwidth of described UE from described SRS transmission bandwidth set.
According to embodiments of the invention, described UE type information comprises center of housing estate/edge customer information that Inter-Cell Interference Coordination ICIC algorithm is obtained.Described step B comprises: B1, described access network equipment are according to described center of housing estate/when edge customer information judges that described UE is central user, choose the SRS transmission bandwidth of first value as described UE from described SRS transmission bandwidth set; Described access network equipment is chosen the SRS transmission bandwidth of second value as described UE according to described center of housing estate/when edge customer information judges that described UE is edge customer from described SRS transmission bandwidth set.Wherein, described first value is greater than described second value.
According to embodiments of the invention, described step B also comprises: B2, described access network equipment receive the PHR information of described UE, and determine the SRS transmission bandwidth upper limit of described UE according to described PHR information; B3, described access network equipment are determined the SRS transmission bandwidth of described UE according to the described SRS transmission bandwidth upper limit and the set of described SRS transmission bandwidth.
According to embodiments of the invention, described step B comprises: described access network equipment is determined the initial value of the SRS transmission bandwidth of described UE according to described UE type information and the set of described SRS transmission bandwidth; Described access network equipment is determined the adjusted value of described SRS transmission bandwidth according to the initial value of described SRS transmission bandwidth, described PHR information and the set of described SRS transmission bandwidth.
According to embodiments of the invention, described step B2 comprises: the described SRS transmission bandwidth upper limit obtains by following formula:
Wherein
Be the described SRS transmission bandwidth upper limit,
Be original SRS transmission bandwidth, PHR ' is the power difference between the actual transmission power of the transmittability of described UE and described UE, and n (PHR ') expression is converted into described power difference the difference of SRS transmission bandwidth.
According to embodiments of the invention, described power difference PHR ' obtains by following formula: PHR '=PHR-10log (M
SRS)+10log (M
PUSCH)+Δ
TF(i), wherein, PHR ' is the power difference between the actual transmission power of the transmittability of described UE and described UE, M
SRSBe the single SRS transmission bandwidth of described UE, M
PUSCHBe the Physical Uplink Shared Channel PUSCH transmission bandwidth of described UE, Δ
TF(i) power back-off for making, wherein M with respect to different modulation coding modes
SRSAnd M
PUSCHUnit be Physical Resource Block PRB number.
According to embodiments of the invention, described step B3 comprises: described access network equipment is selected less than the described SRS transmission bandwidth upper limit in described SRS transmission bandwidth set and is approached the SRS transmission bandwidth of the value of the described SRS transmission bandwidth upper limit as described UE most.
According to embodiments of the invention, also comprise after the described step B: when C, described access network equipment are different from original SRS transmission bandwidth at described definite SRS transmission bandwidth, notify described UE described definite SRS transmission bandwidth.
According to embodiments of the invention, described access network equipment is notified described UE by the RRC signaling with described definite SRS transmission bandwidth.
The invention allows for a kind of access network equipment, comprising: configuration module, it is used for determining the set of SRS transmission bandwidth according to the system call bandwidth; Determination module, it is used for reporting PHR information according to the power space of user equipment (UE) type information and/or described UE, determines the SRS transmission bandwidth of described UE from described SRS transmission bandwidth set.
According to embodiments of the invention, described UE type information comprises center of housing estate/edge customer information that Inter-Cell Interference Coordination ICIC algorithm is obtained.Described determination module comprises first determination module, and it is used for choosing the SRS transmission bandwidth of first value as described UE according to described center of housing estate/when edge customer information judges that described UE is central user from described SRS transmission bandwidth set; According to described center of housing estate/when edge customer information judges that described UE is edge customer, from described SRS transmission bandwidth set, choose the SRS transmission bandwidth of second value as described UE, wherein, described first value is worth greater than described second.
According to embodiments of the invention, described determination module comprises second determination module, it is used to receive the PHR information of described UE, determine the SRS transmission bandwidth upper limit of described UE according to described PHR information, and the SRS transmission bandwidth of determining described UE according to the described SRS transmission bandwidth upper limit and the set of described SRS transmission bandwidth.
According to embodiments of the invention, described determination module comprises initialization module and adjusting module.Described initialization module is used for the initial value according to the SRS transmission bandwidth of described UE type information and the definite described UE of described SRS transmission bandwidth set.Described adjusting module is used for determining according to the initial value of described SRS transmission bandwidth, described PHR information and the set of described SRS transmission bandwidth the adjusted value of described SRS transmission bandwidth.
According to embodiments of the invention, described access network equipment also comprises notification module, and it is used for notifying described UE with described definite SRS transmission bandwidth when described definite SRS transmission bandwidth is different from original SRS transmission bandwidth.
Method and apparatus proposed by the invention can be guaranteed the SRS transmission cycle of UE as far as possible under the prerequisite of SRS signal detection performance that guarantees UE and CQI certainty of measurement, guarantee upgrading in time of CQI information, thereby guarantee the correctness and the validity of the input information when access network equipment carries out frequency selective scheduling, and then improve throughput of system and efficiency of transmission.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the flow chart of an embodiment of method of the present invention;
Fig. 2 is the flow chart of an embodiment of method of the present invention;
Fig. 3 is the flow chart of an embodiment of method of the present invention;
Fig. 4 is the functional structure chart of access network equipment of the present invention.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
It should be noted that; access network equipment of the present invention can comprise the base station; Relay (relaying) or the like; below simple in order to describe; with the base station is that example describes; yet the embodiment of method and apparatus of the present invention also can be applied to other any access network equipment, can not be interpreted as the restriction to the protection range of invention.
The present invention proposes the method for the SRS transmission bandwidth of a kind of definite UE, be illustrated in figure 1 as the flow chart of an embodiment 100 of method of the present invention, as shown in Figure 1, may further comprise the steps:
S101: the set of SRS transmission bandwidth is determined according to the system call bandwidth in the base station.As one embodiment of the present of invention, cell parameter SRS band width configuration is at first determined in the base station, after cell parameter SRS band width configuration has been determined, just can determine that in conjunction with the up-link bandwidth of this sub-district this sub-district SRS has transmitted the bandwidth aggregation supported.
As one embodiment of the present of invention, can pass through PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) shared PRB number and the shared PRB number of PRACH (Physical Random Access Channel, Physical Random Access Channel) are determined the SRS band width configuration of this sub-district:
Wherein
Be up-link bandwidth, N
PUCCHBe the shared bandwidth of PUCCH, N
PRACHBe the shared bandwidth of PRACH, N
SRSBe the shared bandwidth of SRS transmission, the unit of each parameter is PRB in the following formula.
After having determined the shared PRB number of SRS transmission, in the band width configuration that can support according to current up-link, the maximum SRS transmission bandwidth in the SRS band width configuration (that is m in the table 1,
SRS, 0Corresponding SRS transmission bandwidth) determine the SRS band width configuration pattern supported the sub-district: promptly select under the various configurations SRS maximum transmission bandwidth less than and approach N most
SRSConfiguration mode.Notice to have the different configurations identical situation of SRS maximum transmission bandwidth down, at this moment can carry out the decision-making of sub-district SRS transmission bandwidth configuration mode further combined with the SRS code tree structure.
For example, suppose to determine that according to the foregoing description the SRS band width configuration of current system, current area adopts configuration 2, the SRS transmission bandwidth set that can determine current each UE of support in this sub-district thus for 80,40,20,4}.
S102: the SRS transmission bandwidth of UE is determined according to the UE type information in the base station from the set of SRS transmission bandwidth.As one embodiment of the present of invention, the UE type information can be indicated the distance between UE and the base station, for example, can be the output information of the center of housing estate/edge customer discriminating module in ICIC (Inter-Cell Interference Coordination, the Inter-Cell Interference Coordination) algorithm.As one embodiment of the present of invention,, illustrate that then this UE is far away apart from the base station if UE is judged to be edge customer through center of housing estate/edge customer discriminating module, therefore less bandwidth in this UE set that can select to determine by step S101, for example, can choose 4 PRB (that is, BSRS=3).If certain UE is judged as Cell Center User, illustrate that then this UE is nearer apart from the base station, then can select bigger SRS transmission bandwidth, for example, can choose 40 PRB (that is, BSRS=1).
The embodiment 100 of this method can choose the SRS transmission bandwidth according to the distance between UE and the base station, and can avoid influences transmission performance greatly because of path loss between edge customer and the base station.
As shown in Figure 2, be the flow chart of another embodiment 200 of method of the present invention.As shown in Figure 2, may further comprise the steps:
S201: the set of SRS transmission bandwidth is determined according to the system call bandwidth in the base station.Its specific implementation and above-mentioned steps S101 are basic identical.
S202: PHR (the Power Headroom Report that receives UE when the base station, power space reports) after, PHR reported result and PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) power according to UE is controlled, the relation of SRS power control strategy is determined the SRS transmission bandwidth upper limit of this UE.Wherein, the PHR of UE reports the transmittability that reflected UE and the difference between the UE actual transmission power, and this difference is with respect to PUSCH's (Physical Uplink Shared Channel, Physical Uplink Shared Channel).
As one embodiment of the present of invention, the PUSCH of UE, SRS power control formula and PH (Power Headroom, power space) to embody formula as follows:
SRS：P
SRS(i)＝min{P
MAX，P
SRS_OFFSET+10log
10(M
SRS)+P
O_PUSCH(j)+α·PL+f(i)}[dBm]，
PUSCH：P
PUSCH(i)＝min{P
MAX，10log
10(M
PUSCH(i))+P
O_PUSCH(j)+α(j)·PL+Δ
TF(i)+f(i)}[dBm]，
PHR：PH(i)＝P
MAX-{10log
10(M
PUSCH(i))+P
O_PUSCH(j)+α·PL+Δ
TF(i)+(f(i)}[dB]，
Wherein, i represents subframe numbers, j is the parameter by the high level configuration, its concrete value is relevant with scheduling type, and possible value has 0,1,2, wherein j=0 is corresponding to PUSCH transmission and the semi-continuous scheduling permission that retransmits, and j=1 is corresponding to PUSCH transmission and the dynamic dispatching permission that retransmits, and j=2 is corresponding to inserting transmission permission at random.P
SRS(i) be the SRS through-put power of i subframe, P
PUSCH(i) be the through-put power of the PUSCH channel of i subframe, the surplus of the power space of i subframe of PH (i) expression, P
MAXBe the base station UE maximum transmission power definite according to the UE ability rating; P
SRS_OFFSETBe the power excursion of SRS reference signal with respect to the PUSCH transmission of this UE; M
SRSBe the single SRS transmission bandwidth of UE, unit is the number of PRB, P
O_PUSCHIt is the business objective signal to noise ratio of receiving terminal; PL is the base station that measures of UE and the path loss between the UE, and a is the parameter smaller or equal to 1, can realize the compensation of part path loss in conjunction with PL.Δ
TF(i) power back-off for making with respect to different modulation coding modes; F (i) is the transmission power control command word of closed power control, comprises absolute value and accumulation dual mode.M
PUSCHPUSCH transmission bandwidth for UE is expressed as the PRB number.
As one embodiment of the present of invention, can report by PHR and revise the PUSCH channel of same UE, obtain the difference of this UE with respect to the SRS transmittability, modification method is shown below:
PHR′＝PHR-10log(M
SRS)+10log(M
PUSCH)+Δ
TF(i)
Wherein, PHR ' is the power difference between the actual transmission power of the transmittability of described UE and described UE, and PHR is the surplus of power space, i.e. PH (i), M
SRSBe the single SRS transmission bandwidth of described UE, M
PUSCHBe the Physical Uplink Shared Channel PUSCH transmission bandwidth of described UE, Δ
TF(i) power back-off for making, wherein M with respect to different modulation coding modes
SRSAnd M
PUSCHUnit be Physical Resource Block PRB number.
As one embodiment of the present of invention, more than revise the upper limit of the SRS transmittability that can obtain UE, this upper limit can obtain by following formula:
Wherein, wherein
Be the described SRS transmission bandwidth upper limit,
Be original SRS transmission bandwidth, PHR ' is the power difference between the actual transmission power of the transmittability of described UE and described UE, and the effect of function n (PHR ') is the surplus that the power headroom of UE is converted into the bandwidth of support.
S203: after the SRS of the UE transmission bandwidth upper limit has been determined, transmit the SRS actual transmission bandwidth that the bandwidth aggregation of being supported is determined this UE in conjunction with this sub-district SRS.As one embodiment of the present of invention, can carry out in the following way: in the SRS of this current support in sub-district transmission bandwidth set, select less than the SRS transmission bandwidth upper limit of UE and approach the transmission bandwidth value of this upper limit most.For example, the initial SRS transmission bandwidth of certain UE is 4, by said method the PHR of UE is reported to revise on the SRS transmission bandwidth of determining this UE and be limited to 24, gather { 80 in conjunction with the SRS transmission bandwidth that this sub-district is supported, 40,20,4}, select the value be no more than the SRS transmission bandwidth upper limit and approach this upper limit most in set, the SRS transmission bandwidth that then can determine this UE is 20.
As shown in Figure 3, be the flow chart of another embodiment 300 of method of the present invention.As shown in Figure 3, method 300 may further comprise the steps:
S301: the set of SRS transmission bandwidth is determined according to the system call bandwidth in the base station.As one embodiment of the present of invention, its specific implementation is similar to above-mentioned steps S101.
S302: the initial value of the SRS transmission bandwidth of UE is determined in the base station according to UE type information and the set of SRS transmission bandwidth.As one embodiment of the present of invention, the UE type information can comprise center of housing estate/edge customer information.As one embodiment of the present of invention, its specific implementation is similar to above-mentioned steps S102.
S303: after the base station receives that the PHR of UE reports, determine the SRS transmission bandwidth upper limit of this UE according to the relation of the PHR reported result of UE and the control of PUSCH power, SRS power control strategy.As one embodiment of the present of invention, its specific implementation is similar to above-mentioned steps S202.
S304: after the SRS of the UE transmission bandwidth upper limit has been determined, transmit the SRS actual transmission bandwidth that the bandwidth aggregation of being supported is determined this UE in conjunction with this sub-district SRS.As one embodiment of the present of invention, its specific implementation is similar to above-mentioned steps S203.
S305: the SRS transmission bandwidth of the UE that will newly determine compares with the SRS transmission bandwidth of this UE before, if change, then notifies UE new SRS transmission bandwidth.As one embodiment of the present of invention, the new SRS transmission bandwidth of RRC signaling UE can be passed through in the base station.For example, the SRS transmission bandwidth of certain UE need be revised as BSRS=2 (corresponding PRB number is 20) by BSRS=3 (corresponding PRB number is 4), then need to reconfigure the BSRS of this UE by the RRC signaling.UE in follow-up SRS transmission, will adopt amended bandwidth to carry out the SRS transmission after receiving new BSRS, up to Cell Broadcast CB modification sub-district SRS band width configuration or RRC once more till the SRS transmission bandwidth of this UE of reprovision.
The present invention proposes a kind of access network equipment.As shown in Figure 4, be the functional structure chart of an embodiment 400 of access network equipment of the present invention.As shown in the figure, access network equipment 400 comprises:
Configuration module 401, it is used for determining the set of SRS transmission bandwidth according to the system call bandwidth;
Determination module 402, it is used for reporting PHR information according to the power space of UE type information and/or UE, determines the SRS transmission bandwidth from the set of SRS transmission bandwidth.
As one embodiment of the present of invention, the UE type information can comprise center of housing estate/edge customer information that Inter-Cell Interference Coordination ICIC algorithm is obtained.
As one embodiment of the present of invention, determination module 402 comprises initialization module 4021, and it is used for choosing the SRS transmission bandwidth of first value as UE from the set of SRS transmission bandwidth when judging that according to center of housing estate/edge customer information UE is central user; When judging that according to center of housing estate/edge customer information UE is edge customer, from the set of SRS transmission bandwidth, choose the SRS transmission bandwidth of second value as UE, wherein, described first value is greater than described second value.
As one embodiment of the present of invention, determination module 402 also comprises adjusting module 4022, it is used to receive the PHR information of UE, determines the SRS transmission bandwidth upper limit of UE according to PHR information, and the SRS transmission bandwidth of determining UE according to the SRS transmission bandwidth upper limit and the set of SRS transmission bandwidth.
Notification module 403, it is used for when the SRS transmission bandwidth of determining is different from original SRS transmission bandwidth, with the SRS transmission bandwidth notice UE that determines.
The method and apparatus of definite SRS transmission bandwidth of the present invention, guarantee the SRS transmission cycle of UE under the prerequisite of the precision that can measure at SRS signal detection performance and the CQI of assurance UE simultaneously as far as possible, guarantee upgrading in time of CQI information, thereby guarantee the correctness and the validity of the input information when access network equipment carries out frequency selective scheduling, and then improve throughput of system and efficiency of transmission.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification that scope of the present invention is by claims and be equal to and limit to these embodiment.
Claims (14)
1. a method of determining to survey with reference signal SRS transmission bandwidth is characterized in that, may further comprise the steps:
A, access network equipment are determined the set of SRS transmission bandwidth according to the system call bandwidth;
B, described access network equipment report PHR information according to the power space of user equipment (UE) type information and/or described UE, determine the SRS transmission bandwidth of described UE from described SRS transmission bandwidth set.
2. method according to claim 1 is characterized in that, described UE type information comprises center of housing estate/edge customer information that Inter-Cell Interference Coordination ICIC algorithm is obtained,
Described step B comprises:
B1, described access network equipment are according to described center of housing estate/when edge customer information judges that described UE is central user, choose the SRS transmission bandwidth of first value as described UE from described SRS transmission bandwidth set;
Described access network equipment is chosen the SRS transmission bandwidth of second value as described UE according to described center of housing estate/when edge customer information judges that described UE is edge customer from described SRS transmission bandwidth set,
Wherein, described first value is greater than described second value.
3. method according to claim 1 is characterized in that, described step B also comprises:
B2, described access network equipment receive the PHR information of described UE, and determine the SRS transmission bandwidth upper limit of described UE according to described PHR information;
B3, described access network equipment are determined the SRS transmission bandwidth of described UE according to the described SRS transmission bandwidth upper limit and the set of described SRS transmission bandwidth.
4. method according to claim 1 is characterized in that, described step B comprises:
Described access network equipment is determined the initial value of the SRS transmission bandwidth of described UE according to described UE type information and the set of described SRS transmission bandwidth;
Described access network equipment is determined the adjusted value of described SRS transmission bandwidth according to the initial value of described SRS transmission bandwidth, described PHR information and the set of described SRS transmission bandwidth.
5. method according to claim 3 is characterized in that, described step B2 comprises:
The described SRS transmission bandwidth upper limit obtains by following formula:
6. method according to claim 5 is characterized in that, described power difference PHR ' obtains by following formula:
PHR′＝PHR-10log(M
SRS)+10log(M
PUSCH)+Δ
TF(i)，
Wherein, PHR ' is the power difference between the actual transmission power of the transmittability of described UE and described UE, M
SRSBe the single SRS transmission bandwidth of described UE, M
PUSCHBe the Physical Uplink Shared Channel PUSCH transmission bandwidth of described UE, Δ
TF(i) power back-off for making, wherein M with respect to different modulation coding modes
SRSAnd M
PUSCHUnit be Physical Resource Block PRB number.
7. method according to claim 3 is characterized in that, described step B3 comprises:
Described access network equipment is selected less than the described SRS transmission bandwidth upper limit in described SRS transmission bandwidth set and is approached the SRS transmission bandwidth of the value of the described SRS transmission bandwidth upper limit as described UE most.
8. method according to claim 1 is characterized in that, also comprises after the described step B:
When C, described access network equipment are different from original SRS transmission bandwidth at described definite SRS transmission bandwidth, notify described UE with described definite SRS transmission bandwidth.
9. method according to claim 8 is characterized in that, described access network equipment is notified described UE by the RRC signaling with described definite SRS transmission bandwidth.
10. an access network equipment is characterized in that, comprising:
Configuration module, it is used for determining the set of SRS transmission bandwidth according to the system call bandwidth;
Determination module, it is used for reporting PHR information according to the power space of user equipment (UE) type information and/or described UE, determines the SRS transmission bandwidth of described UE from described SRS transmission bandwidth set.
11. access network equipment according to claim 10 is characterized in that, described UE type information comprises center of housing estate/edge customer information that Inter-Cell Interference Coordination ICIC algorithm is obtained,
Described determination module comprises first determination module, and it is used for choosing the SRS transmission bandwidth of first value as described UE according to described center of housing estate/when edge customer information judges that described UE is central user from described SRS transmission bandwidth set; According to described center of housing estate/when edge customer information judges that described UE is edge customer, from described SRS transmission bandwidth set, choose the SRS transmission bandwidth of second value as described UE, wherein, described first value is worth greater than described second.
12. access network equipment according to claim 10, it is characterized in that, described determination module comprises second determination module, it is used to receive the PHR information of described UE, determine the SRS transmission bandwidth upper limit of described UE according to described PHR information, and the SRS transmission bandwidth of determining described UE according to the described SRS transmission bandwidth upper limit and the set of described SRS transmission bandwidth.
13. access network equipment according to claim 10 is characterized in that, described determination module comprises initialization module and adjusting module,
Described initialization module is used for the initial value according to the SRS transmission bandwidth of described UE type information and the definite described UE of described SRS transmission bandwidth set;
Described adjusting module is used for determining according to the initial value of described SRS transmission bandwidth, described PHR information and the set of described SRS transmission bandwidth the adjusted value of described SRS transmission bandwidth.
14. access network equipment according to claim 10 is characterized in that, also comprises notification module, it is used for notifying described UE with described definite SRS transmission bandwidth when described definite SRS transmission bandwidth is different from original SRS transmission bandwidth.
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| CN101959284A (en) * | 2010-09-30 | 2011-01-26 | 中兴通讯股份有限公司 | Control information transmission method and device thereof |
| CN102761969A (en) * | 2011-04-26 | 2012-10-31 | 中兴通讯股份有限公司 | Measuring reference signal transmitting method and device |
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