CN103916903B - A kind of measurement method and device of Reference Signal Received Power - Google Patents
A kind of measurement method and device of Reference Signal Received Power Download PDFInfo
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Abstract
This application discloses a kind of measurement method of Reference Signal Received Power and devices, including：The measurement configuration information that eNB is sent is received, working frequency points are carried in the measurement configuration information and measures report condition；The PSS and SSS of first kind adjacent cell are detected in pre-set time window in working frequency points, and measures the RSRP values of each first kind adjacent cell according to the PSS and SSS that detect；When determining need to the progress RSRP measurements of the second class adjacent cell, the PSS and SSS of the second class adjacent cell are detected in time window in working frequency points, and the RSRP values of each second class adjacent cell are measured according to the PSS and SSS that detect；The RSRP values of the RSRP values and the second class adjacent cell that meet the first kind adjacent cell for measuring report condition are reported to eNB.Now compare with the prior art, the measurement method and device of Reference Signal Received Power proposed by the present invention, RSRP measurements can not only be carried out to the adjacent cell using conventional carrier type, and can be to carrying out RSRP measurements using the adjacent cell of new carrier type.
Description
Technical Field
The present invention relates to mobile communication technologies, and in particular, to a method and an apparatus for measuring reference signal received power.
Background
Reference Signal Received Power (RSRP) is an average value of Signal Power Received on all Resource Elements (REs) that carry a Common Reference Signal (CRS) within a certain OFDM (Orthogonal Frequency Division Multiplexing) symbol. The method is one of important bases for cell reselection and handover of User Equipment (UE), and the accuracy directly determines the accuracy of cell reselection and handover of the UE, so that the performance of the whole system is influenced.
In an existing Long Term Evolution (LTE) system, an evolved node B (eNB) may issue measurement configuration information to a UE in a connected state, and determine whether the UE performs handover according to a received measurement result reported by the UE. Specifically, the measurement quantity triggered when the eNB issues the measurement configuration information to the UE includes: RSRP and Reference Signal Received Quality (RSRQ). Fig. 1 is a flowchart illustrating a method for measuring a reference signal received power in the prior art. As shown in fig. 1, the method comprises the following steps:
step 101: and the UE receives measurement configuration information sent by the eNB, wherein the measurement configuration information carries a working frequency point and a measurement reporting condition.
Step 102: and the UE detects the PSS and the SSS of the adjacent cells in a preset time window on the working frequency point, and measures the RSRP value of each adjacent cell according to the detected PSS and SSS.
In the existing LTE system, the downlink synchronization signal includes: primary Synchronization Signal (PSS) and Secondary Synchronization Signal (SSS). In this step, the UE detects the PSS and SSS of the neighboring cells within a preset time window on the working frequency point, and measures the RSRP value of each neighboring cell according to the detected PSS and SSS.
Step 103: and the UE reports the RSRP value of the adjacent cell meeting the measurement reporting condition to the eNB.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:
currently, a New Carrier Type (NCT) is proposed in the LTE Rel-11 standard, since the existing RSRP measurement method detects the PSS and SSS of the neighbor cell according to the design structure of the PSS and SSS corresponding to the legacy carrier type, while the PSS and SSS corresponding to the new carrier type and the PSS and SSS corresponding to the legacy carrier type are different in design structure, only neighbor cells using conventional carrier types can be detected using existing RSRP measurement methods, therefore, only the adjacent cells adopting the traditional carrier wave type can be subjected to RSRP measurement, the adjacent cells adopting the new carrier wave type cannot be subjected to RSRP measurement, in the subsequent RSRP reporting process, the UE can only report the RSRP of the adjacent cell adopting the traditional carrier type and cannot report the RSRP of the adjacent cell adopting the new carrier type, this will lead to insufficient information reported by the UE and insufficient optimization of the handover decision performed by the eNB for the UE.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide two reference signal received power measurement methods, which can not only perform RSRP measurement on neighboring cells using a conventional carrier type, but also perform RSRP measurement on neighboring cells using a new carrier type.
Another object of the present invention is to provide two reference signal received power measurement apparatuses, which can not only perform RSRP measurement on neighboring cells using a conventional carrier type, but also perform RSRP measurement on neighboring cells using a new carrier type.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a method of measuring reference signal received power, the method comprising:
receiving measurement configuration information sent by an evolved node B (eNB), wherein the measurement configuration information carries a working frequency point and a measurement reporting condition;
detecting a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS) of a first type of adjacent cells adopting a first carrier type in a preset time window on the working frequency point, and measuring a Reference Signal Received Power (RSRP) value of each first type of adjacent cell according to the detected PSS and SSS;
determining whether RSRP measurement needs to be carried out on a second type of adjacent cell adopting a second carrier type;
when it is determined that the RSRP measurement of the second type neighbor cells is needed, detecting the PSS and the SSS of the second type neighbor cells in the time window on the working frequency point, and measuring the RSRP value of each second type neighbor cell according to the detected PSS and SSS;
and reporting the RSRP value of the first type of adjacent cell and the RSRP value of the second type of adjacent cell which meet the measurement reporting condition to the eNB.
A method of measuring reference signal received power, the method comprising:
sending measurement configuration information to User Equipment (UE), wherein the measurement configuration information carries a working frequency point and a measurement reporting condition;
when it is determined that the UE needs to perform RSRP measurement on a second type of neighbor cell adopting a second carrier type, receiving a Reference Signal Received Power (RSRP) value of a first type of neighbor cell adopting a first carrier type and an RSRP value of the second type of neighbor cell, which meet the measurement reporting condition, reported by the UE.
A user equipment, comprising: the device comprises a first receiving unit, a measuring unit, a determining unit and a reporting unit;
the first receiving unit is configured to receive measurement configuration information sent by an evolved node b (eNB), where the measurement configuration information carries a working frequency point and a measurement reporting condition, and send the measurement configuration information to the measuring unit;
the measurement unit is configured to detect a primary synchronization signal PSS and a secondary synchronization signal SSS of a first type of neighbor cell using a first carrier type within a preset time window on the working frequency point, measure a reference signal received power RSRP value of each first type of neighbor cell according to the detected PSS and SSS, send the RSRP value of the first type of neighbor cell to the reporting unit, and send a determination instruction to the determination unit; the measurement reporting unit is further configured to detect, on the working frequency point, a PSS and a SSS of the second type neighbor cell within the time window after receiving the measurement notification message, measure an RSRP value of each of the second type neighbor cells according to the detected PSS and SSS, and send the RSRP value of the second type neighbor cell to the reporting unit;
the determining unit is configured to determine whether RSRP measurement needs to be performed on a second type of neighboring cell using a second carrier type after receiving the determining instruction, and send the measurement notification message to the measuring unit when it is determined that RSRP measurement needs to be performed on the second type of neighboring cell;
the reporting unit is configured to report, to the eNB, the RSRP value of the first type of neighboring cell and the RSRP value of the second type of neighboring cell that satisfy the measurement reporting condition.
An evolved base station comprising: a transmitting unit and a second receiving unit;
the sending unit is configured to send measurement configuration information to the UE, where the measurement configuration information carries a working frequency point and a measurement reporting condition, and notifies the second receiving unit;
the second receiving unit is configured to receive, when it is determined that the UE needs to perform RSRP measurement on a second-type neighboring cell that uses a second carrier type, a reference signal received power RSRP value of the first-type neighboring cell that uses the first carrier type and that satisfies the measurement reporting condition, and the RSRP value of the second-type neighboring cell that are reported by the UE.
As can be seen from the above, in the technical solution of the present invention, first, the PSS and the SSS of a first type of neighbor cell using a first carrier type are detected within a preset time window on a working frequency point, and the RSRP value of each first type of neighbor cell is measured according to the detected PSS and the SSS, then it is determined whether RSRP measurement needs to be performed on a second type of neighbor cell using a second carrier type, and when it is determined that RSRP measurement needs to be performed on the second type of neighbor cell, the PSS and the SSS of the second type of neighbor cell are detected within the time window on the working frequency point, and the RSRP value of each second type of neighbor cell is measured according to the detected PSS and the SSS. Compared with the prior art, the method and the device for measuring the reference signal received power can not only carry out RSRP measurement on the first-class adjacent cell, but also carry out RSRP measurement on the second-class adjacent cell; moreover, the method is simple and convenient to implement and convenient to popularize.
Drawings
Fig. 1 is a flowchart illustrating a method for measuring a reference signal received power in the prior art.
Fig. 2 is a flowchart of a first implementation of a method for measuring received power of a reference signal according to the present invention.
Fig. 3 is a flowchart of a second implementation of the method for measuring the received power of the reference signal according to the present invention.
Fig. 4 is a schematic structural diagram of a user equipment in the present invention.
Fig. 5 is a schematic structural diagram of an evolved node b in the present invention.
Detailed Description
Aiming at the problems in the prior art, the invention provides an improved reference signal received power measurement scheme, which can realize the RSRP measurement of the adopted new carrier.
In order to make the technical solution of the present invention clearer and more obvious, the solution of the present invention is further described in detail below by referring to the drawings and examples.
Fig. 2 is a flowchart of a first implementation of a method for measuring received power of a reference signal according to the present invention. As shown in fig. 2, the method comprises the following steps:
step 201: receiving measurement configuration information sent by an evolved node B (eNB), wherein the measurement configuration information carries a working frequency point and a measurement reporting condition.
In this step, the UE receives measurement configuration information sent by the eNB, where the measurement configuration information carries a working frequency point and a measurement reporting condition.
In an embodiment of the present invention, the measurement reporting condition may be of various types. For example, the RSRP value of the neighboring cell higher than the fixed threshold may be reported, or the RSRP value of the neighboring cell higher than the RSRP value of the local cell obtained in advance may be reported.
In a preferred embodiment of the present invention, the UE may receive measurement configuration information transmitted by the eNB through Radio Resource Control (RRC) signaling.
Step 202: detecting a primary synchronization signal PSS and a secondary synchronization signal SSS of first-class adjacent cells adopting a first carrier type in a preset time window on a working frequency point, and measuring a Reference Signal Received Power (RSRP) value of each first-class adjacent cell according to the detected PSS and SSS.
In a specific embodiment of the present invention, the first type of carrier type refers to a conventional carrier type in the prior art; the subsequently mentioned second type of carrier type refers to a new carrier type proposed in the LTE Rel-11 standard.
In the existing frame format for LTE TDD, PSS mapping is on the third OFDM alignment of subframe 1 and subframe 6; the SSS is mapped on the last OFDM symbol of subframe 0 and subframe 5. Because the distances between the UE and the enbs in different neighboring cells are different, the time for the UE to receive the PSS and the SSS sent by the enbs in different neighboring cells may be different, and therefore, in the specific embodiment of the present invention, a time window needs to be preset to ensure that the UE can receive the PSS and the SSS sent by the enbs in different neighboring cells. In a preferred embodiment of the present invention, the length of the preset time window may be 10 milliseconds.
According to the LTE Rel-8 standard, the PSS uses Zadoff-Chu sequences, there are 3 PSS sequences, each PSS sequence corresponds to an ID in a physical layer cell group:the value is an integer of 0-2; SSS uses m sequences, 168 sequences in total, one physical layer cell number for each SSS sequence:the value is an integer from 0 to 167. CellByAndtogether determine the location of the first and second end regions, in particular,andandsatisfies the following relation:wherein,represents a cell ID;representing physicsA layer cell group number;indicating an ID within the physical layer cell group. Therefore, after the UE detects the PSS and the SSS, the cell ID may be determined according to the detected PSS and SSS.
Therefore, in this step, the UE may detect the PSS and the SSS of the first type of neighbor cell using the first carrier type within a preset time window on the working frequency point. Further, the UE may detect the PSS and the SSS of the first type neighbor cell according to a predetermined design structure of the PSS and the SSS of the first type neighbor cell. The design structure of the PSS and the SSS refers to the positions of the PSS and the SSS in time and frequency and the sequences adopted by the PSS and the SSS. Specifically, the UE may detect the PSS and the SSS of the first neighbor cell by using a common detection method, for example, the UE may perform synchronous correlation with a received signal on each OFDM symbol by using a predetermined PSS sequence and a predetermined SSS sequence corresponding to the first carrier type, and determine the positions of the PSS and the SSS according to an obtained peak value.
In the embodiment of the present invention, the UE may detect the PSS and SSS of one first-type neighbor cell, or may detect the PSS and SSS of multiple first-type neighbor cells. In this step, the UE may measure the RSRP value of each first-type neighbor cell by using a variety of common methods according to the detected PSS and SSS. For example, the UE may measure RSRP values of each first type neighbor cell directly from the PSS and SSS of each first type neighbor cell; in addition, the UE may also detect the CRS of each first-type neighbor cell according to the detected PSS and SSS of each first-type neighbor cell and a predetermined positional relationship between the CRS and the PSS or the SSS, and measure the RSRP value of each first-type neighbor cell according to the detected CRS; in addition, the UE may also measure an RSRP value of each first-type neighbor cell according to the CRS, PSS, and SSS of each first-type neighbor cell.
Step 203: it is determined whether RSRP measurements need to be performed for a second type of neighbor cell employing a second carrier type.
In the specific embodiment of the present invention, after measuring the RSRP value of each first-type neighbor cell, the UE may first determine whether RSRP measurement needs to be performed on a second-type neighbor cell adopting a second-type carrier type, and when it is determined that RSRP measurement needs to be performed on the second-type neighbor cell, execute step 204; when it is determined that RSRP measurement is not required for the second-type neighbor cell, the UE may directly report, to the eNB, an RSRP value of the first-type neighbor cell that satisfies the measurement report condition.
In the preferred embodiment of the present invention, the UE may determine whether RSRP measurement needs to be performed on the second type neighbor cell according to whether the indication message sent by the eNB is received. Specifically, when the UE does not receive the indication message sent by the eNB, it indicates that the eNB defaults that the UE needs to perform RSRP measurement on the second-class neighbor cell, and therefore when the UE does not receive the indication message sent by the eNB, the UE determines that the RSRP measurement needs to be performed on the second-class neighbor cell. When the UE receives the indication message sent by the eNB, it indicates that the eNB indicates that the UE does not need to perform RSRP measurement on the second-class neighboring cell.
Preferably, the UE may receive an indication message transmitted by the eNB through a System Information Block (SIB).
Step 204: and when the RSRP of the second type of adjacent cells needs to be measured, detecting the PSS and the SSS of the second type of adjacent cells in a time window on a working frequency point, and measuring the RSRP value of each second type of adjacent cell according to the detected PSS and SSS.
In this step, when it is determined that RSRP of the second type neighbor cell needs to be measured, the UE detects the PSS and the SSS of the second type neighbor cell within a time window on the working frequency point. Further, the UE may detect the PSS and the SSS of the second type neighbor cell according to a predetermined design structure of the PSS and the SSS of the second type neighbor cell. Specifically, the UE may detect the PSS and the SSS of the second type neighbor cell according to predetermined positions, in time and frequency, of the PSS and the SSS of the second type neighbor cell and sequences adopted by the PSS and the SSS, for example, the UE may perform synchronization correlation with a received signal on each OFDM symbol by using a predetermined PSS sequence and a predetermined SSS sequence corresponding to the second type carrier, and determine the positions of the PSS and the SSS according to an obtained peak value.
In the embodiment of the present invention, the UE may detect the PSS and SSS of one second type neighbor cell, or may detect the PSS and SSS of multiple second type neighbor cells. In this step, the UE may measure the RSRP value of each second-type neighbor cell by using a variety of common methods according to the detected PSS and SSS. For example, the UE may measure the RSRP value of each second type neighbor cell directly from the PSS and SSS of each second type neighbor cell; in addition, the UE may also detect the CRS of each second-type neighbor cell according to the detected PSS and SSS of each second-type neighbor cell and a predetermined location relationship between the CRS and the PSS or the SSS, and measure an RSRP value of each second-type neighbor cell according to the detected CRS and the PSS and the SSS.
Step 205: and reporting the RSRP value of the first-class neighbor cell and the RSRP value of the second-class neighbor cell meeting the measurement reporting condition to the eNB.
In the specific embodiment of the present invention, the UE reports the RSRP value of the first type of neighboring cell and the RSRP value of the second type of neighboring cell that satisfy the measurement reporting condition to the eNB. For example, the measurement reporting condition is to report an RSRP value of a neighboring cell higher than a fixed threshold, and if the fixed threshold is 10db, in this step, the UE reports the RSRP value of the first neighboring cell and the RSRP value of the second neighboring cell higher than 10db to the eNB.
Fig. 3 is a flowchart of a second implementation of the method for measuring the received power of the reference signal according to the present invention. As shown in fig. 3, the method comprises the following steps:
step 301: and sending measurement configuration information to the UE, wherein the measurement configuration information carries the working frequency point and the measurement reporting condition.
In this step, the eNB sends measurement configuration information to the UE, where the measurement configuration information carries a working frequency point and a measurement reporting condition.
In an embodiment of the present invention, the measurement reporting condition may be of various types. For example, the RSRP value of the neighboring cell higher than the fixed threshold may be reported, or the RSRP value of the neighboring cell higher than the RSRP value of the local cell obtained in advance may be reported.
In a preferred embodiment of the present invention, the UE may receive measurement configuration information transmitted by the eNB through Radio Resource Control (RRC) signaling.
Preferably, in an embodiment of the present invention, the method further includes:
step 311: and judging whether the UE needs to carry out RSRP measurement on the second-type neighbor cell.
In this step, the eNB determines whether the UE needs to perform RSRP measurement on the second-type neighbor cell. In the specific embodiment of the present invention, the eNB may determine whether the UE needs to perform RSRP measurement on the second-type neighbor cell by using multiple methods. For example, the eNB may determine whether a second type of neighbor cell exists in the neighbor cells of the UE, and if the second type of neighbor cell exists in the neighbor cells of the UE, it is determined that the UE needs to perform RSRP measurement on the second type of neighbor cell; and if the second type of adjacent cell does not exist in the adjacent cells of the UE, determining that the UE does not need to carry out RSRP measurement on the second type of adjacent cell.
Step 312: and when the UE is determined not to be required to carry out RSRP measurement on the second-type neighbor cell, sending an indication message to the UE.
In this step, when it is determined that the UE is not required to perform RSRP measurement on the second-type neighbor cell, the eNB sends an indication message to the UE.
Preferably, the eNB may transmit the indication message to the UE through a system information block SIB.
Preferably, when it is determined that the UE needs to perform RSRP measurement on the second-type neighbor cell, the eNB may not send the indication message to the UE, that is, the eNB defaults that the UE needs to perform RSRP measurement on the second-type neighbor cell.
Step 302: when it is determined that the UE needs to perform RSRP measurement on a second type of adjacent cell adopting a second carrier type, receiving the RSRP value of the first type of adjacent cell adopting the first carrier type and the RSRP value of the second type of adjacent cell meeting measurement reporting conditions, which are reported by the UE.
In this step, when it is determined that the UE needs to perform RSRP measurement on a second type of neighbor cell using a second carrier type, the eNB receives an RSRP value of the first type of neighbor cell and an RSRP value of the second type of neighbor cell that satisfy a measurement report condition and are reported by the UE. For example, the measurement reporting condition is to report an RSRP value of a neighboring cell higher than a fixed threshold, and if the fixed threshold is 10db, in this step, the UE reports the RSRP value of the first neighboring cell and the RSRP value of the second neighboring cell higher than 10db to the eNB.
The method for measuring the received power of the reference signal comprises the steps of firstly detecting PSS and SSS of first-class adjacent cells adopting a first carrier type in a preset time window on a working frequency point, measuring the RSRP value of each first-class adjacent cell according to the detected PSS and SSS, then determining whether RSRP measurement needs to be carried out on second-class adjacent cells adopting a second carrier type, detecting the PSS and SSS of the second-class adjacent cells in the time window on the working frequency point when the RSRP measurement needs to be carried out on the second-class adjacent cells, and measuring the RSRP value of each second-class adjacent cell according to the detected PSS and SSS. Compared with the prior art, the method and the device for measuring the reference signal received power can not only carry out RSRP measurement on the first-class adjacent cell, but also carry out RSRP measurement on the second-class adjacent cell; moreover, the method is simple and convenient to implement and convenient to popularize.
Fig. 4 is a schematic structural diagram of a user equipment in the present invention. As shown in fig. 4, includes: a first receiving unit 401, a measuring unit 402, a determining unit 403 and a reporting unit 404;
the first receiving unit 401 is configured to receive measurement configuration information sent by an eNB, where the measurement configuration information carries a working frequency point and a measurement reporting condition, and send the measurement configuration information to the measuring unit 402;
the measuring unit 402 is configured to detect a primary synchronization signal PSS and a secondary synchronization signal SSS of a first type of neighboring cell using a first carrier type within a preset time window on the working frequency point, measure an RSRP value of each first type of neighboring cell according to the detected PSS and SSS, send a reference signal received power RSRP value of the first type of neighboring cell to the reporting unit 404, and send a determination instruction to the determining unit 403; the ue is further configured to detect, on the working frequency point, a PSS and a SSS of the second type neighbor cell within the time window after receiving the measurement notification message, measure an RSRP value of each second type neighbor cell according to the detected PSS and SSS, and send the RSRP value of the second type neighbor cell to the reporting unit 404;
the determining unit 403 is configured to determine whether RSRP measurement needs to be performed on a second type of neighboring cell using a second carrier type after receiving the determining instruction, and send the measurement notification message to the measuring unit 402 when it is determined that RSRP measurement needs to be performed on the second type of neighboring cell;
the reporting unit 404 is configured to report, to the eNB, the RSRP value of the first-class neighboring cell and the RSRP value of the second-class neighboring cell that satisfy the measurement reporting condition.
Further, the determining unit 403 is specifically configured to determine that the RSRP of the second-type neighbor cell needs to be measured when the indication message sent by the eNB is not received; and the UE is further configured to determine that no measurement is required for the RSRP of the second-type neighbor cell when receiving the indication message sent by the eNB.
Further, the first receiving unit 401 is specifically configured to receive an indication message sent by the eNB through a system information block SIB.
Fig. 5 is a schematic structural diagram of an evolved node b in the present invention. As shown in fig. 5, includes: a transmitting unit 501 and a second receiving unit 502;
the sending unit 501 is configured to send measurement configuration information to the UE, where the measurement configuration information carries a working frequency point and a measurement reporting condition, and notifies the second receiving unit 502;
the second receiving unit 502 is configured to receive, when it is determined that the UE needs to perform RSRP measurement on a second type of neighboring cell that uses a second carrier type, a reference signal received power RSRP value of a first type of neighboring cell that uses a first carrier type and that satisfies the measurement reporting condition, and the RSRP value of the second type of neighboring cell that are reported by the UE.
Further, the enb further includes: a judgment unit 503;
the determining unit 503 is configured to determine whether a user equipment UE needs to perform RSRP measurement on the second-type neighboring cell, and send a sending instruction to the sending unit 501 when the UE needs to perform RSRP measurement on the second-type neighboring cell;
the sending unit 501 is configured to send an indication message to the UE.
Further, the sending unit 501 is specifically configured to send the indication message to the UE through a system information block SIB.
Further, the determining unit 503 is specifically configured to determine whether the second type of neighboring cell exists in the neighboring cells of the UE, and if the second type of neighboring cell exists in the neighboring cells of the UE, it is determined that the UE needs to perform RSRP measurement on the second type of neighboring cell; and if the second type of neighbor cell does not exist in the neighbor cells of the UE, determining that the UE is not required to perform RSRP measurement on the second type of neighbor cell.
The invention provides a device for measuring reference signal received power, which comprises the steps of firstly detecting PSS and SSS of first-class adjacent cells adopting a first carrier type in a preset time window on a working frequency point, measuring the RSRP value of each first-class adjacent cell according to the detected PSS and SSS, then determining whether RSRP measurement needs to be carried out on a second-class adjacent cell adopting a second carrier type, detecting the PSS and SSS of the second-class adjacent cell in the time window on the working frequency point when the RSRP measurement needs to be carried out on the second-class adjacent cell, and measuring the RSRP value of each second-class adjacent cell according to the detected PSS and SSS. Compared with the prior art, the method and the device for measuring the reference signal received power can not only carry out RSRP measurement on the first-class adjacent cell, but also carry out RSRP measurement on the second-class adjacent cell; moreover, the method is simple and convenient to implement and convenient to popularize.
For a specific work flow of the apparatus embodiment shown in fig. 4 and 5, please refer to the corresponding description in the method embodiment shown in fig. 1, which is not repeated.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (16)
1. A method for measuring reference signal received power, comprising:
receiving measurement configuration information sent by an evolved node B (eNB), wherein the measurement configuration information carries a working frequency point and a measurement reporting condition;
detecting a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS) of a first type of adjacent cells adopting a first carrier type in a preset time window on the working frequency point, and measuring a Reference Signal Received Power (RSRP) value of each first type of adjacent cell according to the detected PSS and SSS;
determining whether RSRP measurement needs to be carried out on a second type of adjacent cell adopting a second carrier type;
when it is determined that the RSRP measurement of the second type neighbor cells is needed, detecting the PSS and the SSS of the second type neighbor cells in the time window on the working frequency point, and measuring the RSRP value of each second type neighbor cell according to the detected PSS and SSS;
reporting the RSRP value of the first type of adjacent cell and the RSRP value of the second type of adjacent cell which meet the measurement reporting condition to the eNB;
the first carrier type is a conventional carrier type; the second carrier type is a new carrier type NCT proposed in the LTE Rel-11 standard.
2. The method of claim 1, wherein the determining whether the RSRP of the second type of neighbor cell using the second carrier type needs to be measured comprises:
when the indication message sent by the eNB is not received, determining that the RSRP of the second-type neighbor cell needs to be measured;
when receiving the indication message sent by the eNB, determining that the RSRP of the second-type neighbor cell does not need to be measured.
3. The method of claim 1, wherein the length of the preset time window is 10 milliseconds.
4. The method of claim 2, wherein the receiving the indication message sent by the eNB comprises:
and receiving an indication message sent by the eNB through a system information block SIB.
5. The method of claim 1, wherein the measurement reporting condition is: reporting the RSRP value of the adjacent cell higher than the fixed threshold value;
or reporting the RSRP value of the adjacent cell higher than the previously obtained RSRP value of the cell.
6. A method for measuring reference signal received power, comprising:
sending measurement configuration information to User Equipment (UE), wherein the measurement configuration information carries a working frequency point and a measurement reporting condition;
when it is determined that the UE needs to perform RSRP measurement on a second type of adjacent cell adopting a second carrier type, receiving a Reference Signal Received Power (RSRP) value of a first type of adjacent cell adopting a first carrier type and an RSRP value of the second type of adjacent cell, which meet the measurement reporting condition and are reported by the UE;
the UE detects PSS and SSS of first-class neighbor cells adopting a first carrier type in a preset time window on the working frequency point, and measures the RSRP value of each first-class neighbor cell according to the detected PSS and SSS; the UE detects the PSS and the SSS of the second type neighbor cells in the time window on the working frequency point, and measures the RSRP value of each second type neighbor cell according to the detected PSS and SSS;
the first carrier type is a conventional carrier type; the second carrier type is a new carrier type NCT proposed in the LTE Rel-11 standard.
7. The method of claim 6, further comprising:
judging whether the UE needs to carry out RSRP measurement on the second type of adjacent cells;
and when the UE is required to perform RSRP measurement on a second type of adjacent cell adopting a second carrier type, sending an indication message to the UE.
8. The method of claim 7, wherein the sending the indication message to the UE comprises:
and sending the indication message to the UE through a System Information Block (SIB).
9. The method of claim 7, wherein the determining whether the UE needs to perform RSRP measurement on the second-type neighbor cell comprises:
judging whether the second type of neighbor cell exists in the neighbor cells of the UE, and if the second type of neighbor cell exists in the neighbor cells of the UE, determining that the UE is required to carry out RSRP measurement on the second type of neighbor cell; and if the second type of neighbor cell does not exist in the neighbor cells of the UE, determining that the UE is not required to perform RSRP measurement on the second type of neighbor cell.
10. A user device, comprising: the device comprises a first receiving unit, a measuring unit, a determining unit and a reporting unit;
the first receiving unit is configured to receive measurement configuration information sent by an evolved node b (eNB), where the measurement configuration information carries a working frequency point and a measurement reporting condition, and send the measurement configuration information to the measuring unit;
the measurement unit is configured to detect a primary synchronization signal PSS and a secondary synchronization signal SSS of a first type of neighbor cell using a first carrier type within a preset time window on the working frequency point, measure a reference signal received power RSRP value of each first type of neighbor cell according to the detected PSS and SSS, send the RSRP value of the first type of neighbor cell to the reporting unit, and send a determination instruction to the determination unit; the base station is further configured to detect a PSS and a SSS of a second type of neighbor cell within the time window on the working frequency point after receiving the measurement notification message, measure an RSRP value of each second type of neighbor cell according to the detected PSS and SSS, and send the RSRP value of the second type of neighbor cell to the reporting unit;
the determining unit is configured to determine whether RSRP measurement needs to be performed on a second type of neighboring cell using a second carrier type after receiving the determining instruction, and send the measurement notification message to the measuring unit when it is determined that RSRP measurement needs to be performed on the second type of neighboring cell;
the reporting unit is configured to report, to the eNB, an RSRP value of the first type of neighboring cell and an RSRP value of the second type of neighboring cell that satisfy the measurement reporting condition;
the first carrier type is a conventional carrier type; the second carrier type is a new carrier type NCT proposed in the LTE Rel-11 standard.
11. The ue according to claim 10, wherein the determining unit is specifically configured to determine that the RSRP of the second-type neighbor cell needs to be measured when the indication message sent by the eNB is not received; and the UE is further configured to determine that no measurement is required for the RSRP of the second-type neighbor cell when receiving the indication message sent by the eNB.
12. The UE of claim 11, wherein the first receiving unit is specifically configured to receive an indication message sent by the eNB via a System Information Block (SIB).
13. An evolved base station using the method of claim 6, comprising: a transmitting unit and a second receiving unit;
the sending unit is configured to send measurement configuration information to the UE, where the measurement configuration information carries a working frequency point and a measurement reporting condition, and notifies the second receiving unit;
the second receiving unit is configured to receive, when it is determined that the UE needs to perform RSRP measurement on a second-type neighboring cell that uses a second carrier type, a reference signal received power RSRP value of the first-type neighboring cell that uses the first carrier type and that satisfies the measurement reporting condition, and the RSRP value of the second-type neighboring cell that are reported by the UE;
the first carrier type is a conventional carrier type; the second carrier type is a new carrier type NCT proposed in the LTE Rel-11 standard.
14. The enb according to claim 13, further comprising: a judgment unit;
the judging unit is configured to judge whether user equipment UE needs to perform RSRP measurement on the second-type neighboring cell, and send a sending instruction to the sending unit when the UE needs to perform RSRP measurement on the second-type neighboring cell;
the sending unit is configured to send an indication message to the UE.
15. The enb according to claim 14, wherein the sending unit is specifically configured to send the indication message to the UE through a system information block SIB.
16. The enb according to claim 14, wherein the determining unit is specifically configured to determine whether the second-type neighbor cell exists in the neighbor cells of the UE, and if the second-type neighbor cell exists in the neighbor cells of the UE, determine that the UE needs to perform RSRP measurement on the second-type neighbor cell; and if the second type of neighbor cell does not exist in the neighbor cells of the UE, determining that the UE is not required to perform RSRP measurement on the second type of neighbor cell.
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| CN109561401B (en) * | 2014-12-31 | 2020-03-10 | 华为技术有限公司 | Method and device for transmitting reference signal in cell using unlicensed frequency band |
| CN107306417B (en) * | 2016-04-17 | 2019-09-06 | 上海朗帛通信技术有限公司 | A kind of method and apparatus in the UE and base station of narrow-band mobile communication |
| CN109041105B (en) * | 2017-06-09 | 2020-10-16 | 维沃移动通信有限公司 | Sending method of adjacent cell information, and processing method and device of adjacent cell information |
| CN112601251B (en) * | 2017-06-15 | 2023-06-27 | Oppo广东移动通信有限公司 | Method and apparatus for radio resource management measurement |
| CN109391996B (en) * | 2017-08-03 | 2021-11-23 | 维沃移动通信有限公司 | Method for reporting measurement report, method for receiving measurement report, terminal and network equipment |
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