CN111432430B - Reference signal measurement method, interference measurement method, power control method and device - Google Patents
Reference signal measurement method, interference measurement method, power control method and device Download PDFInfo
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Abstract
The invention provides a reference signal measuring method, an interference measuring method, a power control method and a device, wherein the reference signal measuring method comprises the following steps: determining sampling points in a cell signal transmitting time period in a filtering period; cell reference signal measurement is carried out on the sampling points, and corresponding cell reference signal measurement results are obtained; and filtering the cell reference signal measurement result to obtain a cell reference signal measurement value. The embodiment of the invention solves the problem of inaccurate measurement results caused by adopting a fixed measurement period to carry out RRM measurement in a discontinuous cell reference signal transmission environment.
Description
Technical Field
The invention relates to a reference signal measurement method, an interference measurement method, a power control method and a device.
Background
The current long term evolution (LTE, long Term Evolution) system design is designed on the premise that LTE works at an authorized frequency, and corresponding measurement and power control are also designed on the premise that LTE systems continuously transmit at the authorized frequency. While when the LTE system is deployed on an unlicensed frequency, the transmission time of the cell may be discontinuous and the transmission power may be unstable. There is a need for improvements in the art to accommodate transmissions on licensed frequencies. The specific examples are: cell reference signal (CRS, cell-Specific Reference Signal) measurement in a long term evolution system refers to measurement of a Cell common reference signal, in order to obtain a location where the Cell reference signal appears, a User Equipment (UE) needs to detect a synchronization channel of a Cell first, define frame boundary information according to the synchronization channel, and then determine a location where the Cell reference signal appears (i.e. a domain location and a frequency domain location) according to the frame boundary information and a Physical Cell Identifier (PCI) of the Cell. The cell reference signal measurements can be further divided into radio resource management (RRM, radio Resource Management) measurements, channel quality information (CQI, channel Quality Indicator) measurements, and radio link management (RLM, radio Link Management) measurements.
When the cell reference signal is used as RRM measurement, the UE performs cell reference signal measurement according to a certain sampling period. That is, the UE samples one or more measurement points in one sampling period and performs an average filtering process on the sampled measurement results to generate one measurement value. The measurement value is then reported to the base station through the RRC layer of the UE. The base station determines whether the measured cell is suitable as a serving cell for the UE based on the measurement value.
However, since the measurement period of this measurement method is a fixed period, in this fixed period, the sampled measurement point may include a sampling point of normal transmission of the cell, or a sampling point of stop transmission of the cell, and if the sampling point of stop transmission of the cell is included, the measurement value may be inaccurate. Thereby reducing the measurement efficiency of the reference signal during cell transmission.
In addition, in the LTE system, the design of the base station working mechanism is designed by adopting stable power and continuous long-time transmission for a cell specific CRS/physical downlink shared channel (PDSCH, physical Downlink Shared Channel). And the UE manages RRM measurement according to the radio resources of the CRS and reports a measurement event, and the base station determines a service working cell for the UE according to the measurement event. The UE performs CRS measurement in the working cell, and measures the power offset of the PDSCH relative to the CRS, and feeds back CQI, and the base station performs downlink scheduling on the UE according to the CQI, so that power control is realized: however, the CRS transmission time and power of the cells on the unlicensed frequencies and the PDSCH transmission power are not in a stable state, so how to improve the accuracy of interference measurement and the fast adjustment of the power offset reference coefficient under the condition that the CRS or CRS/PDSCH power which is discontinuous in time is frequently changed, so that maintaining normal working cell maintenance and data reception are the problems to be solved at present.
Disclosure of Invention
The embodiment of the invention provides a reference signal measurement method and a reference signal measurement device, which are used for solving the problem of inaccurate measurement results caused by the fact that RRM measurement is carried out in a discontinuous cell reference signal transmission environment by adopting a fixed measurement period.
The embodiment of the invention provides an interference measurement method for improving the accuracy of interference measurement.
The embodiment of the invention provides a power control method and a device, which are used for realizing the rapid adjustment of a power bias reference coefficient.
In order to solve the technical problems, the embodiment of the invention discloses the following technical scheme:
the first aspect provides a reference signal measurement method, comprising:
determining sampling points in a cell signal transmitting time period in a filtering period;
cell reference signal measurement is carried out on the sampling points, and corresponding cell reference signal measurement results are obtained;
and filtering the cell reference signal measurement result to obtain a cell reference signal measurement value.
In a first possible implementation manner of the first aspect, the determining a sampling point in the cell signal transmission period in the filtering period includes:
acquiring a cell signal transmitting time period and a cell stop signal transmitting time period;
And determining sampling points of the cell signal transmission time period in the filtering period according to the cell signal transmission time period and the cell stop signal transmission time period.
With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner, the acquiring a cell signal transmission period and a cell stop signal transmission period includes:
receiving the starting time or stopping time of the cell signal transmission sent by the network side equipment, and determining the cell signal transmission time period according to the starting time or stopping time of the cell signal transmission; or alternatively
And receiving the time length of transmitting or stopping transmitting the cell signal sent by the network side equipment, and determining the time period of transmitting the cell signal according to the time length of transmitting or stopping transmitting the cell signal.
With reference to the first aspect or the first or second possible implementation manner of the first aspect, in a third possible implementation manner, the method further includes:
and receiving the cell reference signal according to a set period in the cell stop signal transmission time period, wherein the set period is at least 2 subframes apart.
With reference to the first aspect or the first or second or third possible implementation manner of the first aspect, in a fourth possible implementation manner, performing cell reference signal measurement on the sampling point to obtain a corresponding cell reference signal measurement result, where the method includes:
Measuring the intensity or channel quality information of a cell reference signal of a cell at the sampling point;
and taking the intensity or channel quality information of the cell reference signal which is larger than a preset threshold value as a corresponding cell reference signal measurement result.
With reference to the first aspect or the first or the second or the third or the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, the method further includes:
and reporting the cell reference signal measured value to network side equipment.
With reference to the first aspect or the first or second or third or fourth or fifth possible implementation manner of the first aspect, in a sixth possible implementation manner, the method further includes:
judging whether the number of sampling points in a cell signal transmitting time period in the filtering period is smaller than the number of preset sampling points or not;
and if the number of the sampling points in the cell signal transmitting time period in the filtering period is less than the number of the preset sampling points, reporting indication information that the measured value of the cell reference signal cannot meet the measurement precision requirement to the network side equipment.
A second aspect provides an interference measurement method, comprising:
determining resource position information of a zero-power reference symbol;
Notifying the resource position information of the zero-power reference symbol to the User Equipment (UE), and indicating the UE to perform interference measurement on the resource position corresponding to the resource position information;
and receiving an interference measurement value reported by the UE, wherein the interference measurement value comprises signal power measured by the UE at the resource position.
In a first possible implementation manner of the second aspect, the determining the resource location information of the zero-power reference symbol includes:
the position information of at least two reference symbols of fourteen reference symbols of each subframe in at least one period is determined as the resource position information of the zero power reference symbol.
With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner, the resource location information includes: a period value and a resource location of zero power transmission of reference symbols within each of said periods.
A third aspect provides an interference measurement method, comprising:
receiving resource position information of a zero-power reference symbol sent by network side equipment, wherein the resource position information of the zero-power reference symbol indicates a resource position where a network side does not transmit a cell reference signal;
Determining the resource position of the reference signal of the non-transmitting cell of the network side according to the resource position information;
performing interference measurement on the resource position to obtain an interference measurement value;
and reporting the interference measurement value to network side equipment, wherein the interference measurement value comprises signal power measured by the UE at the resource position.
In a first possible implementation manner of the third aspect, the resource location information includes: a period value, and a resource location of zero power transmission of reference symbols within each of said periods.
A fourth aspect provides an interference measurement method, comprising:
determining sampling points in a time period when the cell signals stop transmitting in a filtering period;
performing interference measurement on the sampling points to obtain interference measurement values;
and reporting the interference measurement value to network side equipment, wherein the interference measurement value comprises signal power measured by the UE at the resource position.
In a first possible implementation manner of the fourth aspect, the determining a sampling point in a cell signal transmission stop period in the filtering period includes:
acquiring a cell signal transmitting time period and a cell stop signal transmitting time period;
and determining sampling points of the cell signal transmission stopping time period in the filtering period according to the cell signal transmission stopping time period and the cell signal transmission stopping time period.
With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the acquiring a cell signal transmission period and a cell stop signal transmission period includes:
receiving the starting time or stopping time of the cell signal transmission sent by the network side equipment, and determining the time period for stopping the cell signal transmission according to the starting time or stopping time of the cell signal transmission; or alternatively
And receiving the time length of transmitting or stopping transmitting the cell signal sent by the network side equipment, and determining the time period of stopping transmitting the cell signal according to the time length of transmitting or stopping transmitting the cell signal.
With reference to the fourth aspect or the first or the second possible implementation manner of the fourth aspect, in a third possible implementation manner, the performing an interference measurement on the sampling point to obtain an interference measurement value includes:
measuring the intensity or channel quality information of a cell reference signal of a cell at the sampling point;
and taking the intensity or channel quality information of the cell reference signal which is larger than a preset threshold value as a corresponding cell reference signal measurement result.
A fifth aspect provides a power control method, comprising:
Configuring a first power bias reference coefficient for User Equipment (UE), wherein the first power bias reference coefficient is used for indicating the UE to calculate Channel Quality Information (CQI);
transmitting the configured first power offset reference coefficient to the UE;
adjusting a first power bias reference coefficient configured by the UE to obtain power adjustment bias parameter information; the power adjustment bias parameter information is used for indicating the UE to adjust a power bias reference coefficient, and the adjusted power bias reference coefficient is used for calculating CQI in a subsequent set frame;
and sending the power adjustment bias parameter information to the UE.
In a first possible implementation manner of the fifth aspect, the method further includes:
and receiving indication information which is sent by the UE and is used for calculating CQI by using the adjusted power offset reference coefficient.
With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a second possible implementation manner,
the sending the configured first power offset reference coefficient to the UE includes: transmitting a first power offset reference factor to the UE through radio resource control, RRC, signaling;
the sending the power adjustment bias parameter information to the UE includes: and the power adjustment bias parameter information is sent to the UE through a physical downlink control channel PDCCH or a media access control layer control unit (MAC CE).
A sixth aspect provides a power control method, comprising:
receiving a first power bias reference coefficient sent by network side equipment;
calculating channel quality information CQI according to the first power offset reference coefficient;
receiving power adjustment bias parameter information sent by the network side equipment, wherein the power adjustment bias parameter information is received in an N sub-frame, and N is a positive integer greater than zero;
adjusting a power bias reference coefficient according to the power bias adjustment parameter information;
and calculating CQI in the set frames following the N+M subframes by using the adjusted power offset reference coefficient, wherein M is a positive integer greater than zero.
In a first possible implementation manner of the sixth aspect,
the power adjustment bias parameter information includes: a second power offset reference coefficient;
the adjusting the power bias reference coefficient according to the power bias adjustment parameter information comprises the following steps: and taking the second power bias reference coefficient as an adjusted power bias reference coefficient.
With reference to the sixth aspect or the first possible implementation manner of the sixth aspect, in a second possible implementation manner,
the power adjustment bias parameter information includes: a power offset reference adjustment amount;
The adjusting the power bias reference coefficient according to the power bias adjustment parameter information comprises the following steps: calculating a third power bias reference coefficient according to the power bias reference adjustment quantity; and taking the third power bias reference coefficient as the adjusted power bias reference coefficient.
With reference to the sixth aspect or the first or second possible implementation manner of the sixth aspect, in a third possible implementation manner, the set frame subframes include D subframes, where D is a positive integer greater than zero; the method further comprises the steps of:
and recovering to calculate CQI by using the first power offset reference coefficient in the subsequent subframes of the N+M+D subframes.
With reference to the sixth aspect or the first or second or third possible implementation manner of the sixth aspect, in a fourth possible implementation manner, the method further includes:
and sending indication information for calculating CQI by using the adjusted power offset reference coefficient to network side equipment.
A seventh aspect provides a reference signal measurement apparatus comprising:
the determining unit is used for determining sampling points in a cell signal transmitting time period in the filtering period;
the measuring unit is used for measuring the cell reference signals of the sampling points to obtain corresponding cell reference signal measuring results;
And the processing unit is used for carrying out filtering processing on the cell reference signal measurement result to obtain a cell reference signal measurement value.
In a first possible implementation manner of the seventh aspect, the determining unit includes:
an acquisition unit configured to acquire a cell signal transmission period and a cell stop signal transmission period;
and the first determining unit is used for determining sampling points of the cell signal transmission time period in the filtering period according to the cell signal transmission time period and the cell stop signal transmission time period.
With reference to the seventh aspect or the first possible implementation manner of the seventh aspect, in a second possible implementation manner, the acquiring unit includes: a first receiving unit and a first period determining unit; and/or a second receiving unit and a second time period determining unit, wherein,
the first receiving unit is used for receiving the starting time or stopping time of the cell signal transmission sent by the network side equipment;
the first time period determining unit is used for determining the cell signal transmission time period according to the starting time or the stopping time of the cell signal transmission;
the second receiving unit is configured to receive a time length of transmitting or stopping transmitting a cell signal sent by the network side device;
The second time period determining unit is configured to determine the cell signal transmission time period according to the time length of the cell signal transmission or the stop of the transmission.
With reference to the seventh aspect or the first or second possible implementation manner of the seventh aspect, in a third possible implementation manner, the method further includes:
and a third receiving unit, configured to receive a cell reference signal according to a set period in the cell stop signal transmission period, where the set period is at least 2 subframes apart.
With reference to the seventh aspect or the first or second or third possible implementation manner of the seventh aspect, in a fourth possible implementation manner, the measurement unit includes:
a first measurement unit, configured to measure, at the sampling point, strength or channel quality information of a cell reference signal;
and the second determining unit is used for taking the intensity or channel quality information of the cell reference signal which is larger than a preset threshold value as a corresponding cell reference signal measuring result.
With reference to the seventh aspect or the first or second or third or fourth possible implementation manner of the seventh aspect, in a fifth possible implementation manner, the method further includes:
and the second sending unit is used for reporting the cell reference signal measured value obtained by the processing unit to network side equipment.
With reference to the seventh aspect or the first or second or third or fourth or fifth possible implementation manner of the seventh aspect, in a sixth possible implementation manner, the method further includes:
the judging unit is used for judging whether the number of sampling points in the cell signal transmitting time period in the filtering period determined by the determining unit is smaller than the number of preset sampling points;
and the second sending unit is further configured to report, to the network side device, indication information that the measured value of the cell reference signal fails to meet the measurement accuracy requirement when the judging unit judges that the number of sampling points in the cell signal transmission time period is less than the preset number of sampling points.
An eighth aspect provides an interference measurement device, comprising:
a determining unit, configured to determine resource location information of a zero-power reference symbol;
a sending unit, configured to notify the UE of the resource location information of the zero-power reference symbol, so that the UE performs interference measurement on a resource location corresponding to the resource location information;
and the receiving unit is used for receiving the interference measurement value reported by the UE, wherein the interference measurement value comprises signal power measured by the UE at the resource position.
In a first possible implementation manner of the eighth aspect, the determining unit is specifically configured to determine the location information of at least two reference symbols of the 14 reference symbols of each subframe in at least one period as the resource location information of the zero power reference symbol.
With reference to the eighth aspect or the first possible implementation manner of the eighth aspect, in a second possible implementation manner, the resource location information determined by the determining unit includes: a period value and a resource location of zero power transmission of reference symbols within each of said periods.
A ninth aspect provides an interference measurement device, comprising:
a receiving unit, configured to receive resource location information of a zero-power reference symbol sent by a network side device, where the resource location information of the zero-power reference symbol indicates a resource location where a network side does not transmit a cell reference signal;
a determining unit, configured to determine a resource location where the network side does not transmit the cell reference signal according to the resource location information;
and the measuring unit is used for carrying out interference measurement on the resource positions to obtain interference measurement values.
And the sending unit is used for reporting the interference measurement value to the network side equipment, wherein the interference measurement value comprises signal power measured by the UE at the resource position.
In a first possible implementation manner of the ninth aspect, the resource location information received by the receiving unit includes: a period value, and a resource location of zero power transmission of reference symbols within each of said periods.
A tenth aspect provides an interference measurement device comprising:
a determining unit, configured to determine a sampling point in a time period when the cell signal stops transmitting in the filtering period;
the measuring unit is used for carrying out interference measurement on the sampling points to obtain interference measurement values;
and the sending unit is used for reporting the interference measurement value to the network side equipment, wherein the interference measurement value comprises signal power measured by the UE at the resource position.
In a first possible implementation manner of the tenth aspect, the determining unit includes:
an acquisition unit configured to acquire a cell signal transmission period and a cell stop signal transmission period;
and the first determining unit is used for determining sampling points of the cell signal transmission stopping time period in the filtering period according to the cell signal transmission time period and the cell signal transmission stopping time period.
With reference to the tenth aspect or the first possible implementation manner of the tenth aspect, in a second possible implementation manner, the acquiring unit includes: a first receiving unit and a first period determining unit; and/or a second receiving unit and a second time period determining unit, wherein,
The first receiving unit is used for receiving the starting time or stopping time of the cell signal transmission sent by the network side equipment;
the first time period determining unit is used for determining a time period for stopping transmitting the cell signal in a filtering period according to the starting time or the stopping time of transmitting the cell signal;
the second receiving unit is configured to receive a time length of transmitting or stopping transmitting a cell signal sent by the network side device;
and the second time period determining unit is used for determining the time period for stopping transmitting the cell signal in the filtering period according to the time length for transmitting or stopping transmitting the cell signal.
With reference to the tenth aspect or the first or second possible implementation manner of the tenth aspect, in a third possible implementation manner, the measurement unit includes:
a first measurement unit, configured to measure, at the sampling point, strength or channel quality information of a cell reference signal of a cell;
and the second determining unit is used for taking the intensity or channel quality information of the cell reference signal which is larger than a preset threshold value as a corresponding cell reference signal measuring result.
An eleventh aspect provides a power control apparatus comprising:
A configuration unit, configured to configure a first power offset reference coefficient for a user equipment UE, where the first power offset reference coefficient is used to instruct the UE to calculate channel quality information CQI;
a first transmitting unit, configured to transmit the configured first power offset reference coefficient to the UE;
the adjusting unit is used for adjusting the first power bias reference coefficient configured by the UE to obtain power adjustment bias parameter information, the power adjustment bias parameter information is used for indicating the UE to adjust the power bias reference coefficient, and the adjusted power bias reference coefficient is used for calculating CQI in a subsequent setting frame;
and the second sending unit is used for sending the adjusted power adjustment bias parameter information to the UE.
In a first possible implementation manner of the eleventh aspect, the method further includes:
and the receiving unit is used for receiving the indication information which is sent by the UE and is used for calculating CQI by using the adjusted power offset reference coefficient.
A twelfth aspect provides a power control apparatus comprising:
the first receiving unit is used for receiving a first power offset reference coefficient sent by the network side equipment;
a first calculating unit, configured to calculate channel quality information CQI according to the first power offset reference coefficient; the N is a positive integer greater than zero;
The second receiving unit is used for receiving the power adjustment bias parameter information sent by the network side equipment; the power adjustment bias parameter information is received in an nth subframe, and M is a positive integer greater than zero;
the adjusting unit is used for adjusting the power bias reference coefficient according to the power bias adjustment parameter information;
and a second calculating unit, configured to calculate channel quality information CQI using the adjusted power offset reference coefficient in a set frame subsequent to the n+m subframes.
In a first possible implementation manner of the twelfth aspect, the power adjustment bias parameter information received by the second receiving unit includes: the adjusted second power offset reference coefficient;
the adjusting unit is specifically configured to adjust the first power offset reference frame to a second power offset reference coefficient.
With reference to the twelfth aspect or the first possible implementation manner of the twelfth aspect, in a second possible implementation manner,
the power adjustment bias parameter information received by the second receiving unit includes: a power offset reference adjustment amount; the adjusting unit includes:
the third calculation unit is used for calculating a third power bias reference coefficient according to the power bias reference adjustment quantity;
And the bias coefficient adjusting unit is used for adjusting the first power bias reference system to be a third power bias reference coefficient.
With reference to the twelfth aspect or the first or second possible implementation manner of the twelfth aspect, in a third possible implementation manner, the method is characterized in that,
the first receiving unit is specifically configured to receive, through radio resource control RRC signaling, a first power offset reference coefficient sent by the network side device;
the second receiving unit is specifically configured to receive, through a physical downlink control channel PDCCH or a medium access control layer control unit MAC CE, the power adjustment bias parameter information sent by the network side device.
With reference to the twelfth aspect or the first or second or third possible implementation manner of the twelfth aspect, in a fourth possible implementation manner, the set frame subframes include D subframes, where D is a positive integer greater than zero; further comprises:
and a fourth calculation unit, configured to resume using the first power offset reference coefficient to calculate CQI in a subsequent subframe of the n+m+d subframes.
With reference to the twelfth aspect or the first or second or third or fourth possible implementation manner of the twelfth aspect, in a fifth possible implementation manner, the method further includes:
And the sending unit is also used for sending the indication information for calculating the CQI by using the adjusted power bias reference coefficient to the network side equipment after the adjustment of the adjustment unit.
According to the technical scheme, in the filtering period, only the sampling points in the cell signal transmitting time period are measured, so that the measurement of the sampling points in the cell signal transmitting stop time period is avoided, and the accuracy of the measured value is improved. Meanwhile, cell reference signal measurement is also realized for cells with discontinuous occurrence.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a reference signal measurement device according to an embodiment of the present invention;
fig. 1A is a schematic diagram of measuring only sampling points in a cell signal transmission time period in a filtering period according to an embodiment of the present invention;
Fig. 2 is another schematic structural diagram of a reference signal measurement device according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of a reference signal measurement device according to an embodiment of the present invention;
fig. 3A is a schematic diagram of sampling points in a period of time when emission is stopped according to measured CRS measured intensity or quality discharge;
fig. 4 is another schematic structural diagram of a reference signal measurement device according to an embodiment of the present invention;
fig. 5 is another schematic structural diagram of a reference signal measurement device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an interference measurement device according to an embodiment of the present invention;
FIG. 6A is a diagram illustrating the resource locations of existing transmitted reference symbols according to an embodiment of the present invention;
fig. 6B is a schematic diagram illustrating determining a resource location of a zero-power reference symbol according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of another structure of an interference measurement device according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of another structure of an interference measurement device according to an embodiment of the present invention;
fig. 8A is a schematic diagram of interference measurement only during a period of time when a serving cell stops transmitting, which is provided in an embodiment of the present invention;
Fig. 9 is a schematic structural diagram of a power control device according to an embodiment of the present invention;
fig. 10 is another schematic structural diagram of a power control device according to an embodiment of the present invention;
FIG. 11 is a flowchart of a reference signal measurement method according to an embodiment of the present invention;
FIG. 12 is a flowchart of an interference measurement method according to an embodiment of the present invention;
FIG. 13 is another flow chart of an interference measurement method according to an embodiment of the present invention;
FIG. 14 is a flowchart of an interference measurement method according to an embodiment of the present invention;
FIG. 15 is a flowchart of a power control method according to an embodiment of the present invention;
FIG. 16 is a flowchart of a power control method according to an embodiment of the present invention;
FIG. 17 is a block diagram of a data processing apparatus implemented on the basis of a computer system according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a reference signal measurement device according to an embodiment of the present invention, where the device includes: a determination unit 11, a measurement unit 12 and a processing unit 13, wherein,
the determining unit 11 is configured to determine a sampling point in a cell signal transmission time period in a filtering period;
the sampling points, that is, one or more measuring points that can be sampled in a filtering period, may include sampling points when the cell signal is normally transmitted, and may also include sampling points when the cell signal is stopped transmitting. In this embodiment, in order to improve accuracy of the measurement result, the sampling point in the cell signal transmission time period is determined first, and then only the sampling point in the cell signal transmission time period is measured.
The measurement unit 12 is configured to perform cell reference signal measurement on the sampling point to obtain a corresponding cell reference signal measurement result;
for example, measuring the intensity of the sampling points or the channel quality information, the specific measuring process is well known to those skilled in the art, and will not be described herein.
The processing unit 13 is configured to perform filtering processing on the measurement result of the cell reference signal to obtain a measurement value of the cell reference signal.
And carrying out average filtering processing on the cell reference signal measurement result measured by each sampling point to obtain an average cell reference signal measurement value.
That is, in this embodiment, the cell signal transmission period and the cell stop signal transmission period are determined first, then the sampling points of the cell signal transmission period in the filtering period are determined according to the determined cell signal transmission period, then the sampling points in the stop signal transmission period are not measured in the filtering period, only the sampling points in the cell signal transmission period are measured, and then the filtering process is performed according to the measured values. Specifically, as shown in fig. 1A, fig. 1A is a schematic diagram of measuring only sampling points in a cell signal transmission time period in a filtering period, where fig. 1A includes a filtering period, sampling points, a stopping transmission time period, and so on.
In the embodiment of the invention, in the filtering period, the measurement is carried out only on the sampling points in the cell signal transmitting time period, so that the measurement on the sampling points in the cell signal transmitting stopping time period is avoided, and the accuracy of the measured value is improved. Meanwhile, cell reference signal measurement is also realized for cells with discontinuous occurrence.
Alternatively, in another embodiment, which is based on the above embodiment, the determining unit 11 may include an acquiring unit 21 and a first determining unit 22, the structure of which is schematically shown in fig. 2, wherein,
the acquiring unit 21 is configured to acquire a cell signal transmission period and a cell stop signal transmission period;
wherein the acquisition unit 21 further comprises: a first receiving unit and a first period determining unit; and/or a second receiving unit and a second time period determining unit (not shown), wherein,
the first receiving unit is used for receiving the starting time or stopping time of the cell signal transmission sent by the network side equipment; the first time period determining unit is used for determining the cell signal transmission time period according to the starting time or the stopping time of the cell signal transmission;
in such an embodiment, the network side device notifies the UE of a start time or a stop time of cell signal transmission each time the cell signal transmission starts or ends, and the UE determines a cell signal transmission period and a stop transmission period according to the received start time or stop time of the cell signal transmission.
The second receiving unit is configured to receive a time length of transmitting or stopping transmitting a cell signal sent by the network side device; the second time period determining unit is configured to determine the cell signal transmission time period according to the time length of the cell signal transmission or the stop of the transmission.
In such an embodiment, the network side device notifies the UE of the time length of cell signal transmission or stop transmission at the beginning or end of each cell signal transmission, and the UE determines the cell signal transmission time period and the stop transmission time period according to the received time length of cell signal transmission or stop transmission.
The specific notification manner of the network side device may notify the UE through the licensed spectrum cell associated with the unlicensed frequency, which may, of course, also be notified through other manners, which is not limited in this embodiment.
The first determining unit 22 is configured to determine a sampling point of the cell signal transmission period in the filtering period according to the cell signal transmission period and the cell stop signal transmission period.
Optionally, in another embodiment, the apparatus may further include a third receiving unit, configured to receive a cell reference signal in a set period during the cell stop signal transmission period, where the set period is at least 2 subframes apart.
That is, in this embodiment, the signal transmission stopping period is generally used to not interfere with the device using the spectrum resource by another UE, and although the signal transmission stopping period completely eliminates the interference, the UE in the cell cannot measure the sample, and if the sum duration is long, the measurement result is not available for a long time. In this embodiment, as an enhancement, only the cell reference signal may be transmitted and data may be stopped from being transmitted in the cell signal transmission stop period. At present, the cell reference signal is sent in each subframe, but in this embodiment, in order to reduce interference, the cell reference signal is sent in a sparse period, for example, once every 5 subframes, so that the UE also performs sampling according to a filtering period during measurement, and a measurement result is generated, and the process is similar to the above-mentioned sampling process, which is described in detail herein, and is not repeated.
Alternatively, in another embodiment, based on the above embodiment, the measuring unit 11 may include a first measuring unit 31 and a second determining unit 32, and the schematic structure thereof is shown in fig. 3. Wherein,
the first measuring unit 31 is configured to measure, at the sampling point, strength or channel quality information of a cell reference signal;
the channel quality information measurement is reported to a network side device (such as an eNB) to assist the network side device in scheduling downlink data. In the measurement of the channel quality information, the first measurement unit 31 may sample one or more measurement points for measurement.
The second determining unit 32 is configured to take the strength or channel quality information of the cell reference signal greater than a preset threshold value as a corresponding cell reference signal measurement result.
Among the measurement results of the second measurement unit 31, some measurement results are greater than a preset threshold value, and some measurement results are less than or equal to the preset threshold value, and the measurement results with the measurement results greater than the preset threshold value are used as the corresponding cell reference signal measurement results.
That is, in each filtering period, the measured intensity or quality of the cell reference signal at the sampling point in the transmission stop period is relatively low, and the second measuring unit 31 may remove the sampling point according to the measured intensity or channel quality information of the cell reference signal, and perform filtering processing on the measurement result that the intensity or channel quality information is higher than a certain threshold. As particularly shown in fig. 3A. In fig. 3A, the sampling point in the transmission stop period (3 sampling points are taken as an example in the drawing, but not limited to this) is the sampling point where the cell reference signal measurement strength or the channel quality information is relatively low.
Optionally, in another embodiment, based on the foregoing embodiment, the apparatus may further include: the second transmitting unit 41 is schematically shown in fig. 4, and fig. 4 is based on fig. 3, but is not limited thereto, and the second transmitting unit 41 is configured to report the measured value of the cell reference signal obtained by the processing unit 13 to a network side device, so that the network side device determines a serving cell for the UE.
That is, in this embodiment, the cell reference signal measurement value is reported to the network side device (such as the base station) through a measurement report or a measurement event, so that the network side device (such as the base station) selects a suitable serving cell for the UE according to the cell reference signal measurement value.
Optionally, in another embodiment, on the basis of the foregoing embodiment, the apparatus further includes: a determining unit 51, whose structure schematic diagram is shown in fig. 5, wherein the determining unit 51 is configured to determine whether the number of sampling points in the cell signal transmission time period in the filtering period determined by the determining unit 11 (specifically, the first determining unit 22) is less than the preset number of sampling points;
the second sending unit 41 is further configured to report, to the network side device, indication information that the measured value of the cell reference signal fails to meet the measurement accuracy requirement when the determining unit 51 determines that the number of sampling points in the cell signal transmission period is less than the preset number of sampling points.
Referring to fig. 6, a schematic structural diagram of an interference measurement device provided in an embodiment of the present invention is shown, where in an embodiment of the present invention, a network side device (such as a base station) may configure a UE to perform interference measurement, the UE reports an interference measurement result, and the network side device may adjust transmission power based on the reported interference value, or stop transmission and start transmission. The device comprises: a determining unit 61, a transmitting unit 62 and a receiving unit 63, wherein,
the determining unit 61 is configured to determine resource location information of a zero-power reference symbol; the resource location information includes: a period value and a position of zero power transmission of a reference symbol within each of said periods. The determining unit is specifically configured to determine, as resource location information of the zero power reference symbol, location information of at least two reference symbols in 14 reference symbols of each subframe in at least one period, for example, reference symbol location information in 1 st, 3 rd, 5 th symbol in each period is used as resource location information of the zero power reference symbol.
Fig. 6A and 6B specifically show a resource location of an existing transmission reference symbol in fig. 6A according to an embodiment of the present invention; fig. 6B is a schematic diagram of determining a resource location of a zero-power reference symbol according to an embodiment of the present invention.
In fig. 6A, the time domain position and the frequency domain position where the current reference symbol appears are shown and taken as reference positions. The base station transmits reference symbols at specific powers at corresponding reference symbol positions (such as R0 in the figure) at which the UE makes cell reference signal measurements. In addition to the locations of these reference symbols, the remaining symbol locations are used to transmit data for use.
The purpose of interference measurement is to detect signals generated by other transmitting nodes, and when a serving cell transmits data or reference symbols, because the signals from the cell are not accurately measured, in order to eliminate the influence of the cell, one or more of the resource positions of the existing transmitting reference symbols are determined to transmit the resource position of the zero-power reference symbol (such as R0 with oblique lines in the figure), and the resource position information of the resource positions is notified to the UE.
The sending unit 62 is configured to notify the UE of the resource location information of the zero-power reference symbol, so that the UE performs interference measurement on a resource location of a network side corresponding to the resource location information.
And the method is specifically used for notifying the User Equipment (UE) of each period value in the at least one period and the resource position of reference symbol zero power transmission in each period. For example, the notification period is 10ms, and within each 10ms, reference symbol zero power transmissions for reference symbol positions within the 2,4,6 symbols; so that the UE can determine from this configuration that the network is not transmitting serving cell reference signals at that location and then make interference measurements at those particular symbol locations.
The receiving unit 63 is configured to receive an interference measurement value reported by the UE, where the interference measurement value includes signal power measured by the UE at the resource location.
In the embodiment of the invention, the network side equipment determines the resource position information of the zero-power reference symbol first, and then informs the resource position information to the UE so that the UE can judge that the network side does not transmit the reference signal of the serving cell at that position for the resource position information, and then the specific symbol positions are used for interference measurement, thereby improving the accuracy of the interference measurement.
Referring to fig. 7, fig. 7 is another schematic structural diagram of an interference measurement device according to an embodiment of the present invention, where the interference measurement device includes: a receiving unit 71, a determining unit 72, a measuring unit 73 and a transmitting unit 74, wherein,
The receiving unit 71 is configured to receive resource location information of a zero power reference symbol sent by a network side device, where the resource location information of the zero power reference symbol indicates a resource location where a network side does not transmit a cell reference signal;
wherein the resource location information includes: a period value, and a resource location of zero power transmission of reference symbols within each of said periods. Such as a 10ms period, where the resource locations of the reference symbol zero power transmissions within the 1,3,5 th symbol are received within each 10 ms.
The determining unit 72 is configured to determine a resource location where the network side does not transmit the cell reference signal according to the resource location information;
the determining unit 72 may determine, according to the resource location information, that the network side does not transmit the serving cell reference signal at that location, and then perform interference measurement at these reference symbol locations.
The measurement unit 73 is configured to perform interference measurement on the resource location, to obtain an interference measurement value.
The specific measurement procedure is well known to those skilled in the art and will not be described here.
The sending unit 74 is configured to report the interference measurement value to a network side device, where the interference measurement value includes signal power measured by the UE at the resource location.
In the embodiment of the invention, the UE judges that the network side does not transmit the reference signal of the serving cell at that position according to the received resource position information, and then the specific symbol positions are used for interference measurement, thereby improving the accuracy of the interference measurement.
Referring to fig. 8, fig. 8 is another schematic structural diagram of an interference measurement device according to an embodiment of the present invention, where the interference measurement device includes: a determination unit 81, a measurement unit 82 and a transmission unit 83, wherein,
the determining unit 81 is configured to determine a sampling point in a time period when the cell signal stops transmitting in the filtering period;
in one embodiment, the determining unit 81 includes: an acquisition unit for acquiring a cell signal transmission period and a cell stop signal transmission period, and a first determination unit (not shown in the figure); the first determining subunit is configured to determine a sampling point of the cell signal transmission stopping time period in the filtering period according to the cell signal transmission time period and the cell signal transmission stopping time period.
Wherein the acquisition unit includes: a first receiving unit and a first period determining unit; and/or a second receiving unit and a second time period determining unit, where the first receiving unit is configured to receive a start time or a stop time of cell signal transmission sent by the network side device; the first time period determining unit is used for determining a time period for stopping transmitting the cell signal in a filtering period according to the starting time or the stopping time of transmitting the cell signal; the second receiving unit is configured to receive a time length of transmitting or stopping transmitting a cell signal sent by the network side device; and the second time period determining unit is used for determining the time period for stopping transmitting the cell signal in the filtering period according to the time length for transmitting or stopping transmitting the cell signal.
The specific process of determining the cell signal transmission stop time period and the transmission time period is detailed in the corresponding implementation process in the above embodiment, and will not be described herein.
The measurement unit 82 is configured to perform interference measurement on the sampling point to obtain an interference measurement value.
In another embodiment, the measuring unit 82 includes: a first measurement unit and a second determination unit (not shown in the figure), wherein the first measurement unit is configured to measure, at the sampling point, strength or channel quality information of a cell reference signal of a cell;
the second determining unit is configured to use the strength or channel quality information of the cell reference signal greater than a preset threshold value as a corresponding cell reference signal measurement result.
The process of measuring the strength or channel quality information of the cell reference signal of the cell and determining whether the strength or channel quality information is smaller than the preset threshold is similar to the above process, and detailed description thereof is omitted herein.
The procedure of interference measurement is well known to those skilled in the art, and will not be described here.
The sending unit 83 is configured to report the interference measurement value to a network side device, where the interference measurement value includes signal power measured by the UE at the resource location.
Fig. 8A is a schematic diagram of interference measurement only during a period of time when a serving cell stops transmitting, which is provided in an embodiment of the present invention; in fig. 8A, the solid curve is a serving cell signal curve, the broken curve is an interference signal curve, and the interference measurement device performs interference measurement only at sampling points in a period in which the serving cell stops transmitting. The specific determining of the period of time to stop transmitting may be the same as the above embodiments, for example, receiving a network notification, or determining according to a measurement result of a reference signal of a serving cell, which is described in detail above.
Referring to fig. 9, fig. 9 is a schematic structural diagram of a power control apparatus according to an embodiment of the present invention, in this embodiment, since an existing network side device carries a power offset reference coefficient (such as PA/PB/PC) through an RRC message, so that a UE calculates PDSCH power offset relative to a reference signal power offset according to the power offset reference coefficient, however, since RRC signaling has no strict timing relationship, that is, after a network sends an adjustment command, there is no strict rule about which subframe the UE uses a new power offset, and the RRC message is generally slower, and is generally completed about 100 ms. Therefore, at present, this adjustment mode is not suitable for fast power bias adjustment, but is only suitable for relatively slow adjustment, but is based on interference power adjustment, and needs to track the change of interference, when the change of interference is fast, a fast adjustment mode is needed, and the existing adjustment mode based on RRC signaling is not suitable any more, so the present embodiment introduces a fast power bias reference coefficient notification mechanism, and the power control device includes: a configuration unit 91, a first transmission unit 92, an adjustment unit 93 and a second transmission unit 94, wherein,
The configuration unit 91 is configured to configure a first power offset reference coefficient for a user equipment UE, where the first power offset reference coefficient is used to instruct the UE to calculate channel quality information CQI;
the first sending unit 92 is configured to send the configured first power offset reference coefficient to the UE, so that the UE calculates CQI according to the first power offset reference coefficient;
the first sending unit 92 may send, through RRC signaling, the first power offset reference coefficient configured by the configuring unit 91 for the UE to the UE.
The adjusting unit 93 is configured to adjust a first power offset reference coefficient configured by the UE to obtain power adjustment offset parameter information, where the power adjustment offset parameter information is used to instruct the UE to adjust the power offset reference coefficient, and the adjusted power offset reference coefficient is used to calculate CQI in a subsequent set frame;
wherein, the power adjustment bias parameter information may include: an updated second power offset reference coefficient or an updated power offset reference adjustment amount.
The second sending unit 94 is configured to send the adjusted power adjustment bias parameter information to the UE, so that the UE adjusts a power offset reference coefficient according to the power offset adjustment information, and calculates CQI in a subsequent set frame using the adjusted power offset reference coefficient.
Wherein, if the power adjustment bias parameter information is the updated second power bias reference coefficient; the second sending unit 94 is specifically configured to send the updated second power offset reference coefficient to the UE through a physical downlink control channel (PDCCH, physical Downlink Control Channel) or a medium access control layer control unit (MAC CE, medium Access Control Layer Control Element), so that the UE adjusts the first power offset reference frame to the second power offset reference coefficient, and calculates CQI using the second power offset reference coefficient in a subsequent set frame.
Alternatively, the second transmitting unit 94 may notify the updated second power offset reference coefficient through the PDCCH or the MAC CE in the nth subframe, but is not limited thereto, and may also use other methods, which are not limited thereto.
If the power adjustment bias parameter information is an updated power bias reference adjustment amount, the second sending unit 94 is specifically configured to send the updated power bias reference adjustment amount to the UE through a physical downlink control channel PDCCH or MAC CE, so that the UE calculates a third power bias reference coefficient according to the power bias reference adjustment amount, and adjusts the first power bias reference coefficient to the third power bias reference coefficient; and calculating CQI using the third power offset reference factor in a subsequent set frame.
Alternatively, in this manner, the second transmitting unit 94 may notify the updated power offset reference coefficient adjustment amount through the PDCCH or the MAC CE in the nth subframe. Further, the PDCCH or MAC CE may optionally be transmitted using a common radio network temporary identity (RNTI, radio Network Temporary Identity) so that all UEs within the cell that monitor the RNTI can receive the update command.
Optionally, in another embodiment, based on the foregoing embodiment, the apparatus may further include: and the receiving unit is used for receiving the indication information which is sent by the UE and is used for calculating CQI by using the adjusted power offset reference coefficient.
The receiving unit may receive, through MAC CE or CQI, information transmitted by the UE using the second power offset reference coefficient or the third power offset reference coefficient.
In the embodiment of the invention, the network side equipment rapidly sends the obtained power adjustment bias parameter information to the UE so that the UE can conveniently adjust the power bias reference coefficient according to the power bias adjustment information, and the CQI is calculated by using the adjusted power bias reference coefficient in a subsequent setting frame so as to adapt to rapid power bias adjustment.
Referring to fig. 10, fig. 10 is another schematic structural diagram of a power control device according to an embodiment of the present invention, where the power control device includes: a first receiving unit 101, a first calculating unit 102, a second receiving unit 103, an adjusting unit 104 and a second calculating unit 105, wherein,
the first receiving unit 101 is configured to receive a first power offset reference coefficient sent by a network side device;
the first power offset reference factor transmitted by the network side device may be received through radio resource control (RRC, radio Resource Control) signaling, but is not limited thereto.
The first calculating unit 102 is configured to calculate channel quality information CQI according to the first power offset reference coefficient, where N is a positive integer greater than zero;
the process of CQI technology is well known to those skilled in the art, and will not be described in detail herein.
The second receiving unit 103 is configured to receive power adjustment bias parameter information sent by the network side device; the power adjustment bias parameter information is received in an nth subframe, and M is a positive integer greater than zero;
the adjusting unit 104 is configured to adjust a power bias reference coefficient according to the power bias adjustment parameter information;
The power adjustment bias parameter information may be received through the PDCCH or the MAC CE, or may be received through other means. Wherein, the power adjustment bias parameter information may include: the adjusted second power offset reference coefficient; or an updated power offset reference adjustment. Of course, it is not limited thereto, and applications may include other parameters.
The second calculating unit 105 is configured to calculate CQI using the adjusted power offset reference coefficient in a set frame subsequent to the n+m subframes.
After receiving the power adjustment bias parameter information, the second receiving unit 103 performs bias reference coefficient adjustment, and starts to calculate CQI using the new power bias reference coefficient in the n+m subframe, where N and M are integers greater than or equal to zero, N frames and M frames are adjacent frames, and M frames are frames following the N frames.
Optionally, in one embodiment, the power adjustment bias parameter information received by the second receiving unit includes: a second power offset reference coefficient; the adjusting unit is specifically configured to adjust the first power offset reference frame to a second power offset reference coefficient.
Optionally, in one embodiment, the power adjustment bias parameter information received by the second receiving unit includes: a power offset reference adjustment amount; the adjusting unit includes: a third calculation unit and a bias coefficient adjustment unit, wherein,
the third calculation unit is used for calculating a third power bias reference coefficient according to the power bias reference adjustment quantity;
the bias coefficient adjusting unit is used for adjusting the first power bias reference system to be a third power bias reference coefficient.
The setting frame comprises D subframes, wherein after M subframes of the power adjustment bias parameter information are received, D is a positive integer greater than zero, and M is a positive integer greater than or equal to zero; or, the set frame is D subframes starting after M subframes of the subframes in which the power adjustment bias parameter information is received.
That is, the setting frame starts after M subframes of the subframes in which the power adjustment bias parameter information is received, where M is a positive integer greater than or equal to zero, or the setting frame ends after D subframes after the setting frame starts, and CQI is calculated using the first power bias reference coefficient after the setting frame ends, where D is a positive integer greater than zero.
The UE second power offset reference factor is used in the subsequent M subframes, and the CQI is calculated using the first power offset reference factor in the subsequent subframes of n+m+d. Wherein, N, M and D are integers greater than or equal to zero, N frames, M frames and D frames are adjacent frames in sequence, M frames are frames following the N frames, D frames are frames following the M frames, i.e. the UE starts to use the second rate offset reference coefficient after n+m subframes, and resumes using the first power offset reference coefficient to calculate CQI after continuously using D subframes.
Optionally, in another embodiment, based on the foregoing embodiment, the first receiving unit is specifically configured to receive, in a current subframe, a first power offset reference coefficient sent by the network side device through radio resource control RRC signaling;
the second receiving unit is specifically configured to receive, through a physical downlink control channel PDCCH or a medium access control layer control unit MAC CE, the power adjustment bias parameter information sent by the network side device.
Optionally, in another embodiment, based on the foregoing embodiment, the set frame subframes include D subframes, where D is a positive integer greater than zero; the apparatus may further include: and a fourth calculation unit, configured to resume using the first power offset reference coefficient to calculate CQI in a subsequent subframe of the n+m+d subframes.
Optionally, in another embodiment, based on the foregoing embodiment, the apparatus may further include: and the sending unit is also used for sending the indication information for calculating the CQI by using the adjusted power bias reference coefficient to the network side equipment after the adjustment of the adjustment unit.
That is, after the adjustment unit and the reverse power offset reference coefficient are adjusted, the indication information using the second power offset reference coefficient is sent to the network side device through the MAC CE or CQI.
Optionally, the network side device in the embodiment of the present invention may be an eNB, or may be a BSC, an RNC, an eNode B, or a network element such as a Node B.
In the embodiment of the invention, when the power adjustment bias information sent by the network side equipment is received, the adjustment of the power bias reference coefficient is carried out according to the power bias adjustment information, and the CQI is calculated by using the adjusted power bias reference coefficient in a subsequent set frame, and further, the CQI can be calculated by recovering the first power bias reference coefficient in the subsequent frame. To accommodate fast power offset adjustments.
The embodiment of the invention also provides a network device, which comprises: the device comprises a processor and a transceiver, wherein the transceiver is used for determining sampling points in a cell signal transmitting time period in a filtering period; the processor is used for measuring the cell reference signal of the sampling point to obtain a corresponding cell reference signal measurement result; and filtering the cell reference signal measurement result to obtain a cell reference signal measurement value.
Optionally, the transceiver is further configured to acquire a cell signal transmission period and a cell stop signal transmission period;
the processor is further configured to determine a sampling point of the cell signal transmission time period in the filtering period according to the cell signal transmission time period and the cell stop signal transmission time period.
Optionally, the transceiver is further configured to receive a start time or a stop time of cell signal transmission sent by the network side device;
the processor is further configured to determine the cell signal transmission time period according to a start time or a stop time of the cell signal transmission; or alternatively
The transceiver is further configured to receive a time length of transmitting or stopping transmitting a cell signal sent by the network side device; the processor is further configured to determine the cell signal transmission time period according to a time length of the cell signal transmission or the stop of the transmission.
Optionally, the transceiver is further configured to receive a cell reference signal in a set period during the cell stop signal transmission period, where the set period is at least 2 subframes apart.
Optionally, the processor is further configured to measure, at the sampling point, strength or channel quality information of a cell reference signal of a cell; and taking the intensity or channel quality information of the cell reference signal which is larger than a preset threshold value as a corresponding cell reference signal measurement result.
Optionally, the transceiver is further configured to report the measured value of the cell reference signal to a network side device, so that the network side device determines a serving cell for the UE.
Optionally, the processor is further configured to determine whether the number of sampling points in the cell signal transmission time period in the filtering period is less than a preset number of sampling points;
and the transceiver is further configured to report, to the network side device, indication information that the measured value of the cell reference signal fails to meet the measurement accuracy requirement when the processor determines that the number of sampling points in the cell signal transmission time period in the filtering period is less than the preset number of sampling points.
An embodiment of the present invention provides a network device, including: a processor, and a transceiver, wherein,
the processor is used for determining the resource position information of the zero-power reference symbol;
the transceiver is configured to notify the UE of the resource location information of the zero-power reference symbol, so that the UE performs interference measurement on a resource location corresponding to the resource location information;
the transceiver is further configured to receive an interference measurement value reported by the UE, where the interference measurement value includes signal power measured by the UE at the resource location.
Optionally, the processor is further configured to determine the location information of at least two reference symbols in fourteen reference symbols of each subframe in at least one period as resource location information of a zero power reference symbol.
Optionally, the transceiver is further configured to notify the UE of each period value in the at least one period and a resource location of reference symbol zero power transmission in the each period. Wherein the resource location information includes: a period value and a resource location of zero power transmission of reference symbols within each of said periods.
The embodiment of the invention also provides a terminal, which comprises: a transceiver, and a processor, wherein,
the transceiver is configured to receive resource location information of a zero-power reference symbol sent by a network side device;
the processor is further configured to determine a resource location where the network side does not transmit a cell reference signal according to the resource location information; performing interference measurement on the resource position to obtain an interference measurement value;
the transceiver is further configured to report the interference measurement value to a network side device, where the interference measurement value includes signal power measured by the UE at the resource location.
Wherein the resource location information includes: a period value, and a resource location of zero power transmission of reference symbols within each of said periods.
The embodiment of the invention also provides a terminal, which comprises: a transceiver, and a processor, wherein,
the transceiver is used for determining sampling points in a time period when the cell signal stops transmitting in a filtering period;
the processor is used for carrying out interference measurement on the sampling points to obtain interference measurement values;
the transceiver is further configured to report the interference measurement value to a network side device, where the interference measurement value includes signal power measured by the UE at the resource location.
Optionally, the transceiver is further configured to acquire a cell signal transmission period and a cell stop signal transmission period;
the processor is further configured to determine a sampling point of the cell signal transmission stop period in the filtering period according to the cell signal transmission period and the cell signal transmission stop period.
Optionally, the transceiver is further configured to receive a start time or a stop time of cell signal transmission sent by the network side device;
the processor is further configured to determine a time period for stopping transmitting the cell signal according to a start time or a stop time of transmitting the cell signal; or alternatively
The transceiver is further configured to receive a time length of transmitting or stopping transmitting a cell signal sent by the network side device;
the processor is further configured to determine the time period for stopping transmission of the cell signal according to the time length for which the cell signal is transmitted or stopped.
Optionally, the processor is further configured to measure, at the sampling point, a strength or CQI quality of a cell reference signal of a cell; and taking the intensity or channel quality information of the cell reference signal larger than a preset threshold value as a corresponding cell reference signal measurement result.
The embodiment of the invention also provides a network device, which comprises: a processor, and a transceiver, wherein,
the processor is further configured to configure a first power offset reference coefficient for a user equipment UE;
the transceiver is further configured to send the configured first power offset reference coefficient to the UE, so that the UE calculates CQI according to the first power offset reference coefficient; adjusting a first power bias reference coefficient configured by the UE to obtain power adjustment bias parameter information;
the transceiver is further configured to send the adjusted power adjustment bias parameter information to the UE, so that the UE adjusts a power offset reference coefficient according to the power offset adjustment information, and calculates CQI in a subsequent set frame using the adjusted power offset reference coefficient.
Optionally, the transceiver is further configured to send the updated second power offset reference coefficient to the UE, so that the UE adjusts the first power offset reference frame to the second power offset reference coefficient, and calculates CQI using the second power offset reference coefficient in a subsequent set frame; or alternatively
The updated power offset reference adjustment quantity is sent to the UE, so that the UE calculates a third power offset reference coefficient according to the power offset reference adjustment quantity, and adjusts the first power offset reference system into the third power offset reference coefficient; and calculating CQI using the third power offset reference factor in a subsequent set frame.
Optionally, the transceiver is further configured to receive indication information sent by the UE to calculate CQI using the adjusted power offset reference coefficient.
The embodiment of the invention also provides a terminal, which comprises: a transceiver, and a processor, wherein,
the transceiver is used for receiving a first power offset reference coefficient sent by network side equipment in the current subframe;
a processor, configured to calculate CQI using the first power offset reference coefficient in N subframes after the current subframe, where N is a positive integer greater than zero;
The transceiver is further configured to receive power adjustment bias parameter information sent by the network side device in an mth subframe after the N subframes;
the processor is further configured to adjust a power bias reference coefficient according to the power adjustment bias parameter information by the mth subframe; CQI is calculated using the adjusted power offset reference coefficient in a subsequent set frame.
Optionally, the power adjustment bias parameter information received by the transceiver includes: the adjusted second power offset reference coefficient;
the processor is further configured to adjust the first power offset reference frame to a second power offset reference coefficient.
Optionally, the power adjustment bias parameter information received by the transceiver includes: updated power offset reference adjustment.
The processor is further configured to calculate a third power offset reference coefficient according to the power offset reference adjustment amount; adjusting the first power offset reference frame to a third power offset reference coefficient; and calculating CQI using the third power offset reference factor in a subsequent set frame.
And after receiving the M subframes of the power adjustment bias parameter information, the setting frame starts, wherein M is a positive integer greater than or equal to zero, or D subframes after the setting frame starts, and after the setting frame ends, the CQI is calculated by using the first power bias reference coefficient, wherein D is a positive integer greater than zero.
Optionally, the transceiver is further configured to receive, in a current subframe, a first power offset reference coefficient sent by the network side device through RRC signaling, and/or receive, in an mth subframe after the N subframes, the power adjustment offset parameter information sent by the network side device through PDCCH or MAC CE.
Optionally, the processor is further configured to resume calculating CQI using the first power offset reference coefficient in a frame subsequent to the set frame.
Optionally, the transceiver is further configured to calculate CQI using the first power offset reference coefficient in a subsequent subframe of the set frame.
Optionally, the transceiver is further configured to send, after the adjustment, indication information for calculating CQI using the adjusted power offset reference coefficient to the network side device.
Based on the implementation process of the device, the embodiment of the invention also provides a reference signal measurement method, the flowchart of which is shown in fig. 11, and the method comprises the following steps:
step 111: determining sampling points in a cell signal transmitting time period in a filtering period;
wherein, determining sampling points in the cell signal transmitting time period in the filtering period comprises: acquiring a cell signal transmitting time period and a cell stop signal transmitting time period; and determining sampling points of the cell signal transmission time period in the filtering period according to the cell signal transmission time period and the cell stop signal transmission time period.
The acquiring the cell signal transmission time period and the cell stop signal transmission time period includes: receiving the starting time or stopping time of the cell signal transmission sent by the network side equipment, and determining the cell signal transmission time period according to the starting time or stopping time of the cell signal transmission; or receiving the time length of transmitting or stopping transmitting the cell signal sent by the network side equipment, and determining the time period of transmitting the cell signal according to the time length of transmitting or stopping transmitting the cell signal.
Step 112: cell reference signal measurement is carried out on the sampling points, and corresponding cell reference signal measurement results are obtained;
cell reference signal measurement is carried out on the sampling points to obtain corresponding cell reference signal measurement results, and the method comprises the following steps: measuring the intensity or channel quality information of a cell reference signal of a cell at the sampling point; and taking the intensity or channel quality information of the cell reference signal which is larger than a preset threshold value as a corresponding cell reference signal measurement result.
Step 113: and filtering the cell reference signal measurement result to obtain a cell reference signal measurement value.
Optionally, the method may further include: and receiving the cell reference signal according to a set period in the cell stop signal transmission time period, wherein the set period is at least 2 subframes apart.
Optionally, the method may further include: and reporting the cell reference signal measured value to network side equipment so that the network side equipment can determine a service cell for the UE.
Optionally, the method may further include: judging whether the number of sampling points in a cell signal transmitting time period in the filtering period is smaller than the number of preset sampling points or not;
and if the number of the sampling points in the cell signal transmitting time period in the filtering period is less than the number of the preset sampling points, reporting indication information that the measured value of the cell reference signal cannot meet the measurement precision requirement to the network side equipment.
The implementation process of each step in the method is detailed in the functions and roles of the corresponding functional modules of the method device, and are not repeated here.
Referring also to fig. 12, a flowchart of an interference measurement method is provided in an embodiment of the present invention, where the method includes:
step 121: determining resource position information of a zero-power reference symbol;
Wherein the determining the resource location information of the zero-power reference symbol includes: the position information of at least two reference symbols among fourteen reference symbols of each subframe in at least one period is determined as the resource position information of the zero power reference symbol, but is not limited thereto.
Wherein the resource location information includes: a period value and a resource location of zero power transmission of reference symbols within each of said periods.
Step 122: and notifying the resource position information of the zero-power reference symbol to the UE so as to facilitate the UE to carry out interference measurement on the resource position corresponding to the resource position information.
The method specifically comprises the following steps: and notifying the User Equipment (UE) of each period value in the at least one period and the resource position of the reference symbol zero power transmission in each period.
Step 123: receiving an interference measurement value reported by the UE, wherein the interference measurement value comprises signal power measured by the UE at the resource position
Referring also to fig. 13, another flowchart of an interference measurement method is provided in an embodiment of the present invention, where the method includes:
step 131: receiving resource position information of a zero-power reference symbol sent by network side equipment, wherein the resource position information of the zero-power reference symbol indicates a resource position where a network side does not transmit a cell reference signal;
Wherein the resource location information includes: a period value, and a resource location of zero power transmission of reference symbols within each of said periods.
Step 132: determining the resource position of the reference signal of the non-transmitting cell of the network side according to the resource position information;
step 133: performing interference measurement on the resource position to obtain an interference measurement value;
step 134: and reporting the interference measurement value to network side equipment, wherein the interference measurement value comprises signal power measured by the UE at the resource position.
Referring also to fig. 14, another flowchart of an interference measurement method is provided in an embodiment of the present invention, where the method includes:
step 141: determining sampling points in a time period when the cell signals stop transmitting in a filtering period;
determining a sampling point in a period of time during which a cell signal stops transmitting during a filtering period includes: acquiring a cell signal transmitting time period and a cell stop signal transmitting time period; and determining sampling points of the cell signal transmission stopping time period in the filtering period according to the cell signal transmission stopping time period and the cell signal transmission stopping time period.
The acquiring the cell signal transmission time period and the cell stop signal transmission time period includes: receiving the starting time or stopping time of the cell signal transmission sent by the network side equipment, and determining the time period for stopping the cell signal transmission according to the starting time or stopping time of the cell signal transmission; or receiving the time length of transmitting or stopping transmitting the cell signal sent by the network side equipment, and determining the time period of stopping transmitting the cell signal according to the time length of transmitting or stopping transmitting the cell signal.
Step 142: performing interference measurement on the sampling points to obtain interference measurement values;
performing interference measurement on the sampling points to obtain interference measurement values, wherein the interference measurement values comprise: measuring the intensity or channel quality information of a cell reference signal of a cell at the sampling point; and taking the intensity or channel quality information of the cell reference signal which is larger than a preset threshold value as a corresponding cell reference signal measurement result.
Step 143: and reporting the interference measurement value to network side equipment, wherein the interference measurement value comprises signal power measured by the UE at the resource position.
In addition, after the UE performs channel measurement or interference measurement, an unlicensed carrier may be configured as an auxiliary carrier to the UE, even after being configured as an auxiliary carrier; the secondary carrier may still be interfered by other systems, which may be from neighboring frequency LTE cells, neighboring frequency bluetooth or neighboring frequency WIFI (wireless fidelity wireless fidelity) systems, or other systems of the same frequency. It is possible that these interfering nodes are relatively far from the base station, which cannot detect these interferences. At this time, the UE needs to report information of the interfered frequency points to the network, so that the network processes the frequency points. Such as reconfiguring the UE secondary carriers from these frequency points to other frequency points. In order to more precisely inform the network of the type of interference, the UE needs to indicate to the network that the interference received causes the interference of the same frequency and the interference of the adjacent frequency. The interference of the same frequency means that the frequency where the interference source is located and the frequency of the interfered frequency point are partially or completely overlapped. The interference of the adjacent frequency refers to that the frequency where the interference source is located is close to the distance between the interfered frequency point. And the base station adopts different processing modes according to different interference types, for example, if the reported frequency point F1 is interfered by the same frequency, the base station stops scheduling the UE on the F1, or if the reported frequency point F1 is interfered by adjacent frequency, the base station configures DRX (discontinous reception discontinuous reception) for the UE, so that the UE only has part of time to communicate with the base station, and the rest of time to communicate with equipment where an interference source is located.
Referring also to fig. 15, a flowchart of a power control method is provided in an embodiment of the present invention, where the method includes:
step 151: configuring a first power bias reference coefficient for User Equipment (UE), wherein the first power bias reference coefficient is used for indicating the UE to calculate Channel Quality Information (CQI);
step 152: transmitting the configured first power offset reference coefficient to the UE;
step 153: adjusting a first power bias reference coefficient configured by the UE to obtain power adjustment bias parameter information, wherein the power adjustment bias parameter information is used for indicating the UE to adjust the power bias reference coefficient, and the adjusted power bias reference coefficient is used for calculating CQI in a subsequent set frame;
step 154: and sending the adjusted power adjustment bias parameter information to the UE.
In this embodiment, when the UE receives the power adjustment bias parameter information, the UE adjusts a power offset reference coefficient according to the power offset adjustment information, and calculates CQI using the adjusted power offset reference coefficient in a subsequent set frame.
The method specifically comprises the following steps:
transmitting the updated second power offset reference coefficient to the UE, so that the UE adjusts the first power offset reference frame to the second power offset reference coefficient, and calculates CQI using the second power offset reference coefficient in a subsequent set frame; or alternatively
The updated power offset reference adjustment quantity is sent to the UE, so that the UE calculates a third power offset reference coefficient according to the power offset reference adjustment quantity, and adjusts the first power offset reference system into the third power offset reference coefficient; and calculating CQI using the third power offset reference factor in a subsequent set frame.
Optionally, in another embodiment, based on the foregoing embodiment, the method may further include: and receiving indication information which is sent by the UE and is used for calculating CQI by using the adjusted power offset reference coefficient.
Optionally, in another embodiment, the sending, by the embodiment, the configured first power offset reference coefficient to the UE based on the foregoing embodiment includes: transmitting a first power offset reference factor to the UE through radio resource control, RRC, signaling;
transmitting the power adjustment bias parameter information to the UE, comprising: and the power adjustment bias parameter information is sent to the UE through a physical downlink control channel PDCCH or a media access control layer control unit (MAC CE).
Referring also to fig. 16, another flowchart of a power control method is provided in an embodiment of the present invention, where the method includes:
Step 161: receiving a first power bias reference coefficient sent by network side equipment;
and receiving a first power bias reference coefficient transmitted by the network side equipment through Radio Resource Control (RRC) signaling in the current subframe.
Step 162: calculating channel quality information CQI according to the first power bias reference coefficient, wherein N is a positive integer greater than zero;
step 163: receiving power adjustment bias parameter information sent by the network side equipment, wherein the power adjustment bias parameter information is received in an N sub-frame, and N is a positive integer greater than zero;
wherein the power adjustment bias parameter information includes: the adjusted second power offset reference coefficient; or an updated power offset reference adjustment.
And receiving the power adjustment bias parameter information sent by the network equipment through a PDCCH or a MAC CE.
Step 164: adjusting a power bias reference coefficient according to the power bias adjustment parameter information;
in this step, in one way, if the power adjustment bias parameter information includes: and a second power bias reference coefficient, wherein the adjusting the power bias reference coefficient according to the power adjustment bias parameter information comprises: taking the second power bias reference coefficient as an adjusted power bias reference coefficient;
Alternatively, if the power adjustment bias parameter information includes: a power offset reference adjustment amount; the adjusting the power bias reference coefficient according to the power bias adjustment parameter information comprises the following steps: and calculating a third power bias reference coefficient according to the power bias reference adjustment quantity, and taking the third power bias reference coefficient as an adjusted power bias reference coefficient.
Step 165: and calculating CQI in the set frames following the N+M subframes by using the adjusted power offset reference coefficient, wherein M is a positive integer greater than zero.
Based on the above steps, there are two ways to calculate CQI in the subsequent set frame using the second power offset reference coefficient; alternatively, CQI is calculated using the third power offset reference factor in a subsequent set frame.
And after receiving the M subframes of the power adjustment bias parameter information, the setting frame starts, wherein M is a positive integer greater than or equal to zero, or D subframes after the setting frame starts, and after the setting frame ends, the CQI is calculated by using the first power bias reference coefficient, wherein D is a positive integer greater than zero.
Optionally, in another embodiment, based on the foregoing embodiment, the set frame subframes include D subframes, where D is a positive integer greater than zero; the method may further comprise: and recovering to calculate CQI by using the first power offset reference coefficient in the subsequent frames of the N+M+D subframes.
Optionally, in another embodiment, based on the foregoing embodiment, the method may further include: after the adjustment, sending indication information for calculating CQI by using the adjusted power offset reference coefficient to network side equipment.
Optionally, in another embodiment, based on the foregoing embodiment, the method may further include: the CQI is calculated using a first power offset reference coefficient in a subsequent subframe of the set frame.
In the existing LTE system, a UE receives a timing adjustment command sent from a base station, so as to adjust an uplink transmission time advance of the UE, and the UE determines uplink transmission timing according to downlink timing information and the uplink transmission time advance. According to the difference of the uplink transmission time advance, different service cells are divided into different timing advance groups (TAG, timing Advance Group), and the service cells in the same TAG have the same timing advance. For example, a Primary timing advance group (pTAG) indicates a TAG group where a Primary cell is located, and a Secondary timing advance group (second TAG) indicates a TAG group where a Secondary cell is located, and for one UE, there may be only one pTAG and multiple STAGs. In the dual connectivity scenario, the UE's serving cell is in turn divided into two groups of primary cells (MCG, master Cell Group) and secondary cells (SCG, secondary Cell Group). The MCG includes a primary serving cell and a secondary serving cell under the same base station as the primary serving cell. The SCG includes a serving cell that is not under the same base station as the primary cell. The SCG includes one primary and secondary cell (PSCell, primary Secondary Cell), and the cell has uplink transmission capability in the SCG. In a dual connectivity scenario, the pTAG represents the pTAG including the primary cell in a primary cell group (MCG); the sTAG can be the sTAG of the MCG or the sTAG of the SCG; wherein the TAG comprising PSCell is psTAG.
If the uplink transmission timing difference of the cells of different TAGs of the UE exceeds a threshold (for example, 32.74 us), the problem of exceeding the uplink transmission processing capability of the UE may be caused, and even a scenario that the base station cannot decode the uplink data of the UE may be formed. In order to solve the above problem, an embodiment of the present invention proposes a solution to solve the problem of uplink transmission processing when the timing difference of uplink transmission by a UE exceeds the processing capability of the UE, and based on a terminal side, the implementation process of the method includes:
1) The UE receives serving cell configuration information, the configuration information comprising at least two serving cells, and the at least two serving cells belonging to at least two different TAGs.
The service configuration information configures a plurality of service cells for the UE, so that the UE can perform service transceiving from a plurality of cells at the same time. The configuration information may include two or more serving cell messages. And contains TAG information to which the serving cell belongs. The TAG to which the serving cell belongs contains at least one PTAG and one STAG.
2) And the UE receives the uplink timing adjustment command and adjusts uplink sending timing according to the uplink timing adjustment command.
The UE receives an uplink timing adjustment command, wherein the uplink timing adjustment command comprises a TAG mark corresponding to the uplink timing adjustment command, adjusts a corresponding uplink timing advance of the TAG according to the TAG mark, and determines uplink sending timing of the service cell in the TAG according to the uplink timing advance. The uplink timing adjustment command may be received by the random access response or the uplink timing adjustment medium access control layer control unit.
Optionally, the UE starts or restarts the uplink timing adjustment timer when receiving the uplink timing adjustment command.
3) And the UE determines an uplink data transmission starting boundary according to the uplink transmission timing.
And the UE determines an uplink data transmission starting boundary according to the uplink transmission timing.
Optionally, the step further includes: and the UE determines the transmission of uplink data according to the uplink grant and uplink transmission timing deviation between a first TAG of a cell to which the uplink grant belongs and other TAGs configured by the UE. Specifically, when the UE receives an uplink grant of the base station and the uplink grant is directed to a first serving cell of the UE, where the first serving cell belongs to a first TAG, if an uplink transmission timing deviation between the first TAG and a second TAG is less than or equal to a first threshold, the UE submits the uplink grant to an HARQ (Hybrid Automatic Repeat request hybrid automatic repeat request) entity, so that the HARQ entity performs uplink data encapsulation and transmission according to the grant. Or when the UE receives an uplink grant of a base station, and if an uplink transmission timing deviation between the first TAG and the second TAG is greater than or equal to the first threshold, the UE discards the uplink grant. The first threshold may be a predetermined value, such as 32us, or the maximum timing deviation that the UE can handle. The first TAG and the second TAG are TAGs to which different serving cells of the UE belong, and the second TAG satisfies at least one of the following conditions:
At least one cell in the second TAG already determines to send data;
the HARQ cache of at least one cell in the second TAG stores data;
the uplink grant of at least one cell in the second TAG is already submitted to the HARQ entity;
or at least one cell in the second TAG receives the uplink authorization;
or data is stored in at least one cell cache in the second TAG.
Optionally, the step further includes: when the uplink sending timing deviation between the first TAG and the second TAG contained in at least two TAGs configured by the UE is larger than or equal to a first threshold, the UE sets an uplink timing adjustment timer corresponding to at least one TAG in the two TAGs to be overtime. And the UE eliminates the HARQ buffer of the serving cell contained in the TAG corresponding to the uplink timing adjustment timer according to the overtime of the uplink timing adjustment timer, and releases sounding reference signal (SRS, sounding Reference Signal) resources. The first threshold may be a predetermined value, such as 32us, or the maximum timing deviation that the UE can handle.
Optionally, the step further includes: when the uplink transmission timing deviation between the first TAG and the second TAG contained in at least two TAGs configured by the UE is greater than or equal to a first threshold, the UE sends indication information to the base station to indicate that the uplink transmission timing deviation between the first TAG and the second TAG of the base station is greater than or equal to the first threshold, where the indication information may include at least one of the following information:
A flag that an uplink transmission time difference between the first TAG and the second TAG exceeds the threshold value;
an indication of at least one of the first TAG and the second TAG;
an indication of at least one serving cell contained in the first TAG and the second TAG;
and uplink transmission timing deviation information between the first TAG and the second TAG.
The UE may send the indication to the base station via a radio resource management message, or a medium access layer control unit, or a physical layer command, or a predefined logical channel indicator. The first TAG or the second TAG may be pTAG or sTAG. The UE comprises a processing device, wherein the processing device is used for sending indication information to the base station when uplink sending timing deviation between a first TAG and a second TAG contained in at least two TAGs configured by the UE is larger than or equal to a first threshold.
Optionally, the step further includes: when uplink transmission timing deviation between a first TAG and a second TAG contained in at least two TAGs configured by UE is larger than or equal to a first threshold, a first timer is started, and when the first timer is overtime, the UE transmits indication information to the base station to indicate that the uplink transmission timing deviation between the first TAG and the second TAG of the base station is larger than or equal to the first threshold. The first timer time length may be a predefined time length or a length of a receiving base station configuration. The UE comprises a processing device, wherein the processing device is used for starting a first timer when uplink transmission timing deviation between a first TAG and a second TAG contained in at least two TAGs configured by the UE is larger than or equal to a first threshold, and sending indication information to the base station by the UE when the first timer is overtime.
Optionally, the step further includes: and stopping uplink data transmission of the UE in the secondary cell after uplink transmission timing deviation between a first TAG and a second TAG contained in at least two TAGs configured by the UE is greater than or equal to a first threshold, wherein at least one of the first TAG and the second TAG is sTAG. Or if the first TAG and the second TAG are STAG, stopping the transmission of the secondary cell contained in the TAG with poor channel quality, or stopping the transmission of the service cell contained in the TAG with larger uplink definite deviation from other TAGs except the first TAG and the second TAG.
Based on the implementation process of the terminal method, the embodiment of the invention also provides a user equipment UE, which comprises:
and the receiving device is used for receiving the service cell configuration information.
The receiving device is further configured to receive the uplink timing adjustment command. The UE comprises a timing device which is used for starting or restarting an uplink timing adjustment timer when the UE receives an uplink timing adjustment command.
And the sending device is used for sending the uplink timing adjustment command.
Optionally, the UE further includes a processing device, configured to determine, according to an uplink grant and an uplink transmission timing offset between a first TAG where a cell to which the uplink grant belongs and other TAGs configured by the UE, the transmission of uplink data.
Optionally, when the uplink transmission timing deviation between the first TAG and the second TAG contained in the configured at least two TAGs is greater than or equal to a first threshold, the UE sets an uplink timing adjustment timer corresponding to at least one TAG of the two TAGs to be overtime.
Optionally, the processing device is further configured to stop uplink data transmission of the UE in the secondary cell when an uplink transmission timing deviation between a first TAG and a second TAG included in at least two TAGs configured by the UE is greater than or equal to a first threshold.
On the other hand, based on the network side, the implementation process of the square sender comprises the following steps:
1) The base station configures service cell information to the UE, wherein the configuration information at least comprises two service cells, and the at least two service cells at least belong to two different TAGs.
The service configuration information configures a plurality of service cells for the UE, so that the UE can perform service transceiving from a plurality of cells at the same time. The configuration information may include two or more serving cell messages. And contains TAG information to which the serving cell belongs. The TAG to which the serving cell belongs contains at least one PTAG and one STAG.
2) And sending an uplink timing adjustment command to the UE so that the UE adjusts uplink sending timing according to the uplink timing adjustment command.
And sending an uplink timing adjustment command to the UE, wherein the uplink timing adjustment command comprises a TAG mark corresponding to the uplink timing adjustment command, so that the UE adjusts the corresponding uplink timing advance of the TAG according to the TAG mark, and determines the uplink sending timing of the service cell in the TAG according to the uplink timing advance. The uplink timing adjustment command may be sent to the UE by a random access response or an uplink timing adjustment medium access control layer control unit.
3) And receiving indication information that the uplink sending timing deviation reported by the UE exceeds a first threshold.
Optionally, the step further includes: receiving indication information that the uplink fixed deviation reported by the UE exceeds a first threshold, wherein the indication information can comprise at least one of the following information:
a flag that an uplink transmission time difference between the first TAG and the second TAG exceeds the threshold value;
an indication of at least one of the first TAG and the second TAG;
an indication of at least one serving cell contained in the first TAG and the second TAG;
And uplink transmission timing deviation information between the first TAG and the second TAG.
The UE may send the indication to the base station via a radio resource management message, or a medium access layer control unit, or a physical layer command, or a predefined logical channel indicator. The first TAG or the second TAG may be pTAG or sTAG.
And the base station judges to stop the transmission of the auxiliary carrier data according to the indication information that the timing deviation exceeds a first threshold. The stopping the secondary carrier data transmission includes deactivating the secondary carrier or stopping sending scheduling information to the secondary carrier.
Based on the implementation process of the network side method, the embodiment of the invention also provides a base station, which comprises:
and a transceiver configured to configure service cell information to the UE, where the configuration information includes at least two service cells, and the at least two service cells belong to at least two different TAGs.
The transceiver is further configured to send an uplink timing adjustment command to the UE, so that the UE adjusts uplink transmission timing according to the uplink timing adjustment command.
The transceiver is further configured to receive indication information that the uplink transmission timing deviation reported by the UE exceeds a first threshold.
Optionally, the method further includes a processor, configured to determine to stop transmission of the secondary carrier data according to the indication information that the timing deviation exceeds the first threshold. The stopping the secondary carrier data transmission includes deactivating the secondary carrier or stopping sending scheduling information to the secondary carrier.
As shown in fig. 17, the present invention further provides a data processing apparatus implemented based on a computer system, and in a specific implementation, the data processing apparatus may include: a processor 1701, memory 1702, and bus 1703; the processor 1701 and the memory 1702 are interconnected by a bus 1703; wherein the memory 1702 is configured to store computer-executable instructions; a processor 1701 for executing the computer-executable instructions stored in the memory 1702 and determining sampling points within a cell signal transmission time period within a filtering period according to a database execution plan; cell reference signal measurement is carried out on the sampling points, and corresponding cell reference signal measurement results are obtained; and filtering the cell reference signal measurement result to obtain a cell reference signal measurement value.
In a specific implementation, the processor may be a central processing unit (central processing unit, CPU), an Application Specific Integrated Circuit (ASIC), or the like. The computer storage medium may store a program that, when executed, may include some or all of the steps of the various embodiments of the method of data transmission provided by the embodiments of the present invention. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a random-access Memory (Random Access Memory, RAM), or the like.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present invention to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present invention. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
In the embodiment of the present invention, the UE may be any one of static UE, or mobile UE, where the static UE may specifically be a terminal (terminal), a mobile station (mobile station), a subscriber unit (subscriber unit), a station (station), or the like, and the mobile UE may specifically be a cellular phone (cellular phone), a personal digital assistant (PDA, personal digital assistant), a modem (modem), a wireless communication device, a handheld device (handheld), a laptop (laptop computer), a cordless phone (cord) or a wireless local loop (WLL, wireless local loop) station, and the UE may be distributed throughout the wireless network.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. The method for processing the uplink transmission timing is characterized by comprising the following steps:
the base station sends service cell configuration information to User Equipment (UE), wherein the configuration information at least comprises two service cells, and the at least two service cells belong to at least two different Timing Advance Groups (TAGs);
sending an uplink timing adjustment command to the UE, where the uplink timing adjustment command is used to inform the UE to adjust uplink transmission timing according to the uplink timing adjustment command;
and receiving indication information that the uplink transmission timing deviation between the first TAG and the second TAG contained in the at least two different TAGs and reported by the UE is greater than or equal to a first threshold.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the indication information is sent through a radio resource management message, or a media access layer control unit, or a physical layer command, or a predefined logic channel mark.
3. The method according to claim 1 or 2, further comprising:
and the base station judges to stop the transmission of the auxiliary carrier data according to the indication information.
4. The method of claim 3, wherein the step of,
the stopping the secondary carrier data transmission includes deactivating the secondary carrier or stopping sending scheduling information to the secondary carrier.
5. The method according to claim 1 or 2, characterized in that the first threshold is a predetermined value or the largest timing deviation that the UE can handle.
6. A base station, comprising:
a transceiver, configured to send service cell configuration information to a user equipment UE, where the configuration information includes at least two service cells, and the at least two service cells belong to at least two different timing advance groups TAGs;
the transceiver is further configured to send an uplink timing adjustment command to the UE, where the uplink timing adjustment command is configured to notify the UE to adjust uplink transmission timing according to the uplink timing adjustment command;
the transceiver is further configured to receive indication information that an uplink transmission timing deviation between a first TAG and a second TAG included in the at least two different TAGs reported by the UE is greater than or equal to a first threshold.
7. The base station of claim 6, further comprising:
and the processor is used for judging to stop the transmission of the auxiliary carrier data according to the indication information.
8. The base station of claim 7, wherein the base station,
the stopping the secondary carrier data transmission includes deactivating the secondary carrier or stopping sending scheduling information to the secondary carrier.
9. Base station according to any of the claims 6-8, characterized in that,
the indication information is sent through a radio resource management message, or a media access layer control unit, or a physical layer command, or a predefined logic channel mark.
10. The base station according to any of the claims 6-8, wherein the first threshold is a predetermined value or a maximum timing deviation that the UE can handle.
11. A computer storage medium storing instructions which, when run on a processor, cause the processor to perform the method of any one of claims 1-5.
12. An uplink transmission timing processing apparatus comprising a processor for invoking a program in a memory to perform the method of any of claims 1 to 5.
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CN104094548A (en) * | 2012-02-07 | 2014-10-08 | 瑞典爱立信有限公司 | Method and apparatus for transmit timing adjustment |
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