WO2013123886A1

WO2013123886A1 - Mobility measurement method and device

Info

Publication number: WO2013123886A1
Application number: PCT/CN2013/071739
Authority: WO
Inventors: 徐婧; 潘学明; 沈祖康
Original assignee: 电信科学技术研究院
Priority date: 2012-02-22
Filing date: 2013-02-21
Publication date: 2013-08-29
Also published as: CN103298017A

Abstract

Disclosed are a mobility measurement method and device, which relate to the field of wireless communications technologies, and are used to enhance the reliability of mobility measurement. In the present invention, after acquiring a downlink measurement set, a terminal performs reference signal received power (RSRP) and/or reference signal received quality (RSRQ) measurement on a downlink subframe in the acquired downlink measurement set, and reports a measurement result. In the present invention, the terminal performs mobility measurement according to a configured downlink measurement set, so as to enhance the reliability of mobility measurement.

Description

Method and apparatus for mobility measurement This application claims to be filed on the Chinese Patent Office on February 22, 2012, with the application number 201210043614.9, and the invention name is

The priority of the Chinese Patent Application for "Method and Apparatus for Mobility Measurement" is hereby incorporated by reference in its entirety. TECHNICAL FIELD The present invention relates to the field of wireless communications, and in particular, to a method and an apparatus for mobility measurement. BACKGROUND OF THE INVENTION The Time Division Duplex (TDD) mode, one of the two basic duplex systems, has received increasing attention in the context of the increasing bandwidth demand for broadband mobile communications. In the TDD system, the uplink and downlink transmissions use the same frequency resources to transmit uplink/downlink signals on different time slots. In common TDD systems, including 3G Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems and 4G Time Division Long Term Evolution (TD-LTE) systems, the division of uplink and downlink time slots is static or semi-static, usually The practice is to determine the uniform uplink and downlink time slot ratio and keep it unchanged according to the approximate service ratio in the network planning process. This is a relatively simple approach in the context of large coverage of macro cells, and is also more effective.

Currently, the terminal (UE) needs to perform mobility measurement, and the content of the mobility measurement includes reference signal received power (RSRP) and reference symbol received shield (RSRQ).

RSRP is the linear average of the power of the downlink common pilot of the designated cell within the measurement bandwidth. RSRP is obtained by measuring the common reference signal on port R0. If port R1 is available, it can also be obtained by measuring the common reference signal on port R1. The reference point for measuring RSRP is the antenna connector of the terminal. If the UE uses receive diversity, the reported RSRP measurement value cannot be smaller than the RSRP value of a single branch.

RSRQ is the product of N and RSRP values and the indication of the received signal strength of the evolved universal terrestrial radio access network subcarrier

The ratio of (E-UTRA carrier RSSI), where N is the number of resource blocks (RBs) within the measurement bandwidth of the E-UTRA carrier RS SI value. The measurement of the numerator and denominator of RSRQ will be performed on the same resource. E-UTRA carrier RSSI value, which is a linear mean of all received energy of N orthogonal resource division (OFDM) symbols on the N resource blocks, including the pilot signal on port 0, including the serving cell and the non-serving cell Common road interference, neighboring area interference and thermal noise.

The reference point for measuring RSRQ is the antenna connector of the terminal. If the UE uses receive diversity, the reported RSRQ measurement value cannot be smaller than the RSRQ value of a single branch.

The RSRP and RSRQ measurements are used for mobility management, and mobility management is mainly implemented through two processes: cell selection/reselection and handover. Among them, cell selection/reselection usually refers to RSRP measurement results, and handover usually refers to RSRP and RSRQ measurement results.

With the development of technology, more and more micro cells (Pico cell), home base station (Home NodeB) and other low power The base station is deployed to provide local small coverage. On the one hand, the main service type (for example, data service) of the cell is different from the service type of the macro cell (for example, voice service). Therefore, the ratio of the uplink and downlink time slots has a large difference. On the other hand, the number of users in such a cell is small, and the user service demand changes greatly. Therefore, there is a dynamic change in the proportion of the uplink and downlink services of the cell.

Based on this, the proportion of uplink and downlink time slots in different cell configurations has attracted people's attention, especially to dynamically change the ratio of uplink and downlink time slots. However, these schemes cause interference between terminals and terminals between adjacent cells. Usually, such interferences are greatly different from the interference between the base station and the terminal. Therefore, for the dynamic system (that is, the system in which the uplink and downlink time slot ratio configuration dynamically changes), the interference fluctuation in the different subframes will be more serious. In addition, the dynamic system may introduce subframe-based downlink power control in order to reduce the interference between the base station and the base station. In this way, there is also a large fluctuation in the transmission power of the base station in different downlink subframes. These have a big impact on mobility measurements. However, there is currently no mobility measurement scheme for dynamic systems, and the reliability of mobility measurement cannot be guaranteed. SUMMARY OF THE INVENTION Embodiments of the present invention provide a method and an apparatus for measuring mobility, which are used to improve reliability of mobility measurement. A mobility measurement method, the method comprising:

The terminal acquires at least one downlink measurement set, and each of the obtained downlink measurement sets includes one or more downlink subframes;

For each downlink measurement set obtained, the terminal performs reference signal received power RSRP and/or reference symbol received shield RSRQ measurement on the downlink subframe in the downlink measurement set;

The terminal sends the measurement result to the base station.

A mobility measurement method, the method comprising:

The base station sends the at least one downlink measurement set to the terminal, to indicate that the terminal performs the reference signal received power RSRP and/or the reference symbol received shield RSRQ measurement on the downlink subframe in the downlink measurement set that is sent; The configuration information is sent to the terminal, to instruct the terminal to determine at least one downlink measurement set according to the uplink and downlink configuration information, and perform RSRP and/or RSRQ measurement on the downlink subframe in the downlink measurement set;

The base station receives the measurement result reported by the terminal.

A terminal, the terminal comprising:

An acquiring unit, configured to acquire at least one downlink measurement set, where each downlink measurement set obtained includes one or more downlink subframes;

a measuring unit, configured to perform reference signal received power RSRP and/or reference symbol received shield RSRQ on a downlink subframe in the downlink measurement set for each acquired downlink measurement set;

The reporting unit is configured to report the measurement result to the base station. A base station, the base station comprising:

a configuration unit, configured to send the at least one downlink measurement set to the terminal, to indicate that the terminal performs the reference signal received power RSRP and/or the reference symbol received shield RSRQ measurement on the downlink subframe in the downlink measurement set that is sent; or Sending the uplink and downlink configuration information to the terminal, to instruct the terminal to determine at least one downlink measurement set according to the uplink and downlink configuration information, and perform RSRP and/or RSRQ measurement on the downlink subframe in the downlink measurement set;

The receiving unit is configured to receive the measurement result on the terminal.

In the solution provided by the embodiment of the present invention, after acquiring the downlink measurement set, the terminal performs RSRP and/or RSRQ measurement on the downlink subframe in the obtained downlink measurement set, and performs the measurement result. In this solution, the terminal performs mobility measurement according to the configured downlink measurement set, thereby improving the reliability of the mobility measurement. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic flowchart of a method according to an embodiment of the present invention;

2 is a schematic flowchart of another method according to an embodiment of the present invention;

3 is a schematic diagram of uplink and downlink configuration of a dynamic TDD system according to an embodiment of the present invention;

4 is a schematic structural diagram of a device according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another device according to an embodiment of the present invention. In order to improve the reliability of the mobility measurement, the embodiment of the present invention provides a mobility measurement method. In the method, after acquiring the downlink measurement set, the terminal acquires the downlink subframe in the obtained downlink measurement set. Perform RSRP and/or RSRQ measurements and measure the results.

Referring to FIG. 1 , a mobility measurement method for a terminal side according to an embodiment of the present invention includes the following steps: Step 10: A terminal acquires at least one downlink measurement set, where each downlink measurement set obtained includes one or more downlink sub-subjects. frame;

Step 11: For each downlink measurement set obtained, the terminal performs RSRP and/or RSRQ measurement on the downlink subframe in the downlink measurement set.

Step 12: The terminal sends the measurement result to the base station.

In step 10, the terminal acquires at least one downlink measurement set, and the specific implementation may use the following three methods: First, the terminal acquires at least one downlink measurement set from the configuration information; where, the terminal acquires the downlink measurement set from the configuration information, where Default configured, protocol-defined downlink measurement set;

Second, the terminal acquires at least one downlink measurement set from the high layer signaling sent by the base station;

Third, the terminal obtains the current uplink and downlink configuration information from the high layer signaling sent by the base station, according to the uplink and downlink configuration. The information determines at least one downlink measurement set. Here, the downlink measurement set corresponding to the acquired uplink and downlink configuration information may be determined according to the corresponding relationship between the uplink and downlink configuration information and the downlink measurement set.

In the method, for each downlink measurement set acquired by the terminal, the base station has the same transmit power on the downlink subframe in the downlink measurement set, and/or the same inter-cell interference type of the downlink subframe in the downlink measurement set. . The small-interval types include interference between terminals and terminals, interference between terminals and base stations, interference between base stations and terminals, and interference between base stations and base stations. In this way, dynamic systems (ie, systems in which the uplink and downlink time slot ratio configurations are dynamically changed) can be avoided, because the interference fluctuations in the different downlink subframes are severe, and the mobility measurement is affected, and the dynamic system is different in the dynamic system. There is a large fluctuation in the transmission power of the base station on the downlink subframe, which causes the mobility measurement to be affected.

In step 12, if the terminal performs RSRP measurement on the downlink subframes in the obtained multiple downlink measurement sets, the terminal can use the following two methods when reporting the RSRP measurement result:

First, the terminal combines the measurement results of the RSRP measurement performed on the downlink subframes in the multiple downlink measurement sets into one measurement according to the power configuration information of the downlink reference signal corresponding to the multiple downlink measurement sets sent by the base station. As a result, the combined measurement result is sent to the base station. Specifically, the downlink reference signal may be a downlink common reference signal or a downlink measurement signal.

Second, the terminal reports the measurement result of the RSRP measurement performed on the downlink subframe in each downlink measurement set of the multiple downlink measurement sets to the base station.

If the terminal performs RSRP measurement on the downlink subframe in the obtained downlink measurement set, the terminal may perform RSRP measurement on the downlink subframe in the one downlink measurement set when the terminal performs the RSRP measurement result. The measurement result is reported to the base station.

The power configuration information may include: information about a downlink reference signal transmit power corresponding to each of the downlink measurement sets; or

The downlink reference signal transmit power corresponding to the primary measurement set in the plurality of downlink measurement sets, and the downlink reference signal transmit power corresponding to the downlink measurement set in the multiple downlink measurement sets and the downlink reference signal transmit power corresponding to the primary measurement set Difference; or

a difference between a downlink reference signal transmission power corresponding to the downlink measurement set and a downlink reference signal transmission power corresponding to the primary measurement set, where the downlink reference signal transmission power is the base station in the corresponding downlink measurement set. The power of the downlink reference signal is transmitted on the downlink subframe.

Here, the terminal may determine the primary measurement set according to the indication of the base station or the default configuration.

When the power configuration information may include information about downlink transmit signal transmit power corresponding to each of the plurality of downlink measurement sets, the terminal may perform downlinks in the multiple downlink measurement sets according to the following formula: The measurement results of the RSRP measurements made on the frame are combined into one measurement result:

R _SRp _ RSRP, + RSRP ₂ + _ P ₂ ) +... + RSRP _W + W _ P _w )

~ N - The RSR^ is a measurement result of the RSRP measurement performed by the terminal in the downlink subframe in the i-th downlink measurement set, The downlink reference signal transmission power corresponding to the primary measurement set in the plurality of downlink measurement sets, Ρ" is the downlink reference signal transmission power corresponding to the jth downlink measurement set except the primary measurement set, 1 ≤ ⁷ ' ≤ N , ^≤ j ^{≤ N} , N is the number of the plurality of downlink measurement sets.

When the power configuration information includes a difference between a downlink reference signal transmission power corresponding to the downlink measurement set in the plurality of downlink measurement sets and a downlink reference signal transmission power corresponding to the primary measurement set, the terminal may be in the following formula The measurement results of the RSRP measurements performed on the downlink subframes in the downlink measurement set are combined into one measurement result:

n _cnn RSRP, +RSRP ₂ + A ₂ + ... + RSRP _N +A _N

N ;

The RSR^ is a measurement result of the RSRP measurement performed by the terminal in the downlink subframe in the ith downlink measurement set, and is a downlink reference signal transmission power corresponding to the jth downlink measurement set except the primary measurement set. the main difference between the measurement set transmit power of downlink reference signal corresponding ^{^{to, 1≤ 7 '≤N, 2≤ j}} ≤ N, N number of sets of the plurality of downlink measurement for.

In the step 12, if the terminal performs RSRQ measurement on the downlink subframes in the obtained multiple downlink measurement sets, the terminal may use the following two methods when reporting the RSRQ measurement result:

First, the terminal combines the measurement results of the RSRQ measurement performed on the downlink subframes in the multiple downlink measurement sets into one measurement according to the power configuration information of the downlink reference signal corresponding to the multiple downlink measurement sets sent by the base station. As a result, the combined measurement result is sent to the base station; specifically, the downlink reference signal may be a downlink common reference signal or a downlink measurement signal;

Second, the terminal will perform on the downlink subframe in each downlink measurement set of the multiple downlink measurement sets.

The measurement result of the RSRQ measurement is reported to the base station.

If the terminal performs the RSRQ measurement on the downlink subframe in the obtained downlink measurement set, the terminal performs the RSRQ measurement on the downlink subframe in the one downlink measurement set when the RSRQ measurement result is performed. The measurement result is reported to the base station.

a difference between a downlink reference signal transmission power corresponding to the downlink measurement set and a downlink reference signal transmission power corresponding to the primary measurement set, where the downlink reference signal transmission power is the base station in the corresponding downlink measurement set. The power of the downlink reference signal is transmitted on the downlink subframe. Here, the terminal may determine the primary measurement set according to the indication of the base station or the default configuration.

When the power configuration information includes the downlink reference signal transmission power information corresponding to each of the plurality of downlink measurement sets, the terminal may use the downlink subframe in the multiple downlink measurement sets according to the following formula: The measurement results of the RSRQ measurements performed on one are combined into one measurement result:

E - TJTRA carrier RSSI where mean represents the averaging operation; RSRQi is the measurement result value of the RSRQ measurement performed by the terminal in the downlink subframe in the i th downlink measurement set; M is the evolved universal terrestrial radio access network subcarrier receiving signal The strength indicates the number of resource blocks RBs within the measurement bandwidth of the E-UTRA carrier RSSI value; RSRPi is the measurement result value of the RSRP measurement performed by the terminal in the downlink subframe in the i-th downlink measurement set; P _{a is} the multiple downlinks The downlink reference signal transmission power corresponding to the primary measurement set in the measurement set is the downlink reference signal transmission power corresponding to the i-th downlink measurement set, where 1≤ ≤ N, where N is the number of the plurality of downlink measurement sets.

When the power configuration information includes a difference between a downlink reference signal transmission power corresponding to the downlink measurement set in the plurality of downlink measurement sets and a downlink reference signal transmission power corresponding to the primary measurement set, the terminal may be in the following formula The measurement results of the RSRQ measurements performed on the downlink subframes in the downlink measurement set are combined into one measurement result:

RSRQ

, RSRQ ₂ ...R RQ _N ), RERQ ₄

E - TTTRA carrier RSSI where mean represents the averaging operation; RSRQi is the measurement result value of the RSRQ measurement performed by the terminal in the downlink subframe in the i th downlink measurement set; M is the evolved universal terrestrial radio access network subcarrier received signal The strength indicates the number of resource blocks RBs within the measurement bandwidth of the E-UTRA carrier RSSI value; RSRPi is the measurement result value of the RSRP measurement performed by the terminal in the downlink subframe in the i-th downlink measurement set; A is the i-th downlink measurement The difference between the downlink reference signal transmit power corresponding to the downlink measurement signal and the transmit power of the downlink reference signal corresponding to the primary measurement set, 1 ≤ ⁷ ' ≤ N, where N is the number of the plurality of downlink measurement sets.

In step 11, when the terminal performs RSRP and/or RSRQ measurement on the downlink subframe in each downlink measurement set, specifically, performs RSRP and/or RSRQ measurement on the local cell and/or the neighboring cell where the terminal is located. The following situations are included: The terminal performs RSRP measurement on the current downlink subframe in the downlink measurement set; the terminal performs RSRQ measurement on the current downlink subframe in the downlink measurement set; and the terminal downlink in the downlink measurement set. The subframe performs RSRP and RSRQ measurement on the local cell; the terminal performs RSRP measurement on the neighboring cell in the downlink subframe in the downlink measurement set; and the terminal performs RSRQ measurement on the neighboring cell in the downlink subframe in the downlink measurement set; The terminal performs RSRP and RSRQ measurement on the neighboring cell in the downlink subframe in the downlink measurement set; the terminal performs RSRP measurement on the current cell and the neighboring cell in the downlink subframe in the downlink measurement set; and the terminal is in the downlink in the downlink measurement set. In the subframe, the RSRQ measurement is performed on the local cell and the neighboring cell; the terminal performs RSRP on the current cell and the neighboring cell in the downlink subframe in the downlink measurement set. RSRQ measurement.

Referring to FIG. 2, the mobility measurement method for the base station side according to the embodiment of the present invention includes the following steps: Step 20: The base station sends the downlink measurement set to the terminal, to indicate the downlink subframe in the downlink measurement set sent by the terminal. Up-rate RSRP and/or RSRQ measurements; or,

The base station sends the uplink and downlink configuration information to the terminal, to instruct the terminal to determine the downlink measurement set according to the uplink and downlink configuration information, and perform RSRP and/or RSRQ measurement on the downlink subframe in the downlink measurement set.

Step 21: The base station receives the measurement result reported by the terminal.

In the method, for each downlink measurement set that is sent, the base station has the same transmit power on the downlink subframe in the downlink measurement set, and/or the inter-cell interference type of the downlink subframe in the downlink measurement set is the same.

Preferably, when the base station sends the downlink measurement set that needs to perform RSRP measurement to multiple, the base station may use the downlink reference signal corresponding to the multiple downlink measurement sets that need to perform RSRP measurement before the base station receives the measurement result reported by the terminal. The power configuration information is sent to the terminal.

The foregoing base station sends the power configuration information of the downlink reference signal corresponding to the multiple downlink measurement sets that need to perform the RSRP measurement to the terminal, and the specific implementation may be as follows:

The base station sends the downlink reference signal transmission power information corresponding to each downlink measurement set of the RSRP measurement to the terminal, where the downlink reference signal transmission power is sent by the base station to the downlink subframe in the corresponding downlink measurement set. The power of the reference signal; or,

The downlink reference signal transmission power corresponding to the primary measurement set in each downlink measurement set of the downlink measurement set, and the downlink reference signal transmission power corresponding to the downlink measurement set that needs to perform RSRP measurement, and the downlink reference corresponding to the primary measurement set The difference between the signal transmission powers is sent to the terminal; or

The base station sends the difference between the downlink reference signal transmission power corresponding to the downlink measurement set of the RSRP measurement and the downlink reference signal transmission power corresponding to the primary measurement set, and sends the difference to the terminal.

Preferably, when the base station sends the downlink measurement set that needs to perform the RSRQ measurement to multiple, the base station may use the downlink reference signal corresponding to the multiple downlink measurement sets that need to perform the RSRQ measurement before the base station receives the measurement result reported by the terminal. The power configuration information is sent to the terminal.

The foregoing base station sends the power configuration information of the downlink reference signal corresponding to the multiple downlink measurement sets that need to perform the RSRQ measurement to the terminal, and the specific implementation may be as follows:

The base station sends the information about the downlink reference signal transmission power corresponding to each downlink measurement set of the RSRQ measurement to the terminal, where the downlink reference signal transmission power is sent by the base station to the downlink subframe in the corresponding downlink measurement set. The power of the reference signal; or,

The downlink reference signal transmission power corresponding to the primary measurement set in each downlink measurement set of the RSRQ measurement, and the downlink reference signal transmission power corresponding to the downlink measurement set that needs to perform the RSRQ measurement, and the downlink reference corresponding to the primary measurement set The difference between the signal transmission powers is sent to the terminal; or The base station sends the difference between the downlink reference signal transmission power corresponding to the downlink measurement set of the RSRQ measurement and the downlink reference signal transmission power corresponding to the primary measurement set, and sends the difference to the terminal.

Specifically, the downlink reference signal may be a downlink common reference signal or a downlink measurement signal.

Preferably, the base station can exchange power configuration information of the downlink reference signal corresponding to the downlink measurement set and/or the downlink measurement set with other base stations; and the downlink reference set corresponding to the neighboring cell and/or the downlink reference corresponding to the downlink measurement set. The power configuration information of the signal is sent to the terminal.

The present invention will be specifically described below in conjunction with specific embodiments:

Embodiment 1:

In this embodiment, in the dynamic TDD system, the base station performs unified power control on all downlink subframes;

In a dynamic TDD system, in order to avoid inter-cell interference, the downlink subframe needs to be properly configured with power on the premise of ensuring user reception performance. When the base station uniformly performs power control on all downlink subframes, the measured RSRP in all downlink subframes is stable. Therefore, RSRP can be measured in any downlink subframe. However, since some downlink subframes only have interference between the terminal and the terminal, some downlink subframes also contain interference between the base station and the terminal, and the interference fluctuations in the two types of subframes are large. Therefore, the RSRQ measurement needs to be limited to subframes of the same type of inter-cell interference. Based on this, the following three methods can be used for mobility measurement:

Method 1: The RSRQ measurement is only on the downlink subframe in the default configuration downlink measurement set;

Step 1: The terminal obtains one or more downlink measurement sets that need to perform RSRQ measurement from the configuration information. For each downlink measurement set, the inter-cell interference types of the downlink subframes in the downlink measurement set are the same; Step 2: For For each downlink measurement set obtained, the terminal performs RSRQ measurement on the downlink subframe in the downlink measurement set;

Step 3: The terminal uploads the RSRQ measurement result to the base station;

Step 4: The base station receives the RSRQ measurement result reported by the terminal.

Method 2: The RSRQ measurement is only performed on the downlink subframe in one downlink measurement set configured by the base station.

Step 1: The base station sends a downlink measurement set that needs to perform RSRQ measurement to the terminal.

The inter-cell interference type of the downlink subframe in the downlink measurement set is the same; in the case of the cell 2 in FIG. 3, the downlink measurement set that is sent may include one or more of the subframes {3, 8}, or One or more of the frames {0, 1, 4, 5, 6, 9}.

Step 2: The terminal obtains a downlink measurement set that needs to perform RSRQ measurement from the high-level signaling sent by the base station; Step 3: For each downlink measurement set obtained, the terminal performs RSRQ on the downlink subframe in the downlink measurement set. Measurement

Step 4: The terminal uploads the RSRQ measurement result to the base station;

Step 5: The base station receives the RSRQ measurement result reported by the terminal.

Method 3: The RSRQ is measured on the downlink subframes in the two downlink measurement sets configured by the base station. Step 1: The base station sends two downlink measurement sets that need to perform RSRQ measurement to the terminal.

For each downlink measurement set, the inter-cell interference type of the downlink subframe in the downlink measurement set is the same; taking the cell 2 in FIG. 3 as an example, one downlink measurement set includes one of the subframes {3, 8} or Multiple, another downlink measurement set contains one or more of the subframes {0, 1, 4, 5, 6, 9}.

Step 2: The terminal obtains two downlink measurement sets that need to perform RSRQ measurement from the high-level signaling sent by the base station. Step 3: For each downlink measurement set obtained, the terminal is in the downlink subframe in the downlink measurement set. Perform RSRQ measurements;

Step 4: The terminal uploads the RSRQ measurement result to the base station;

The measurement results of the RSRP measurement performed on the downlink subframes in the two downlink measurement sets may be combined into one measurement result, and the combined measurement result is sent to the base station; or, in the two downlink measurement sets The measurement results of the RSRP measurement performed on the downlink subframe in each downlink measurement set are reported to the base station.

Embodiment 2:

In this embodiment, in the dynamic TDD system, the base station separately performs power control on the subframes with different types of inter-cell interference; in the dynamic TDD system, in order to ensure system coverage, the granularity of the downlink power control of the base station needs to be accurate to the sub-frame. frame. That is, the existing technology is applied to the subframe in which there is no cross-interference (inter-base station and base station interference), and the interference of the cross-interference needs to be considered for the subframe with cross-interference. Thus, the base station has different transmit powers in different subframes. Of course, due to the different types of interference between cells, the interference fluctuation in the subframe will be larger. Therefore, both RSRP and RSRQ measurements need to be made in a specific set of downstream measurements. It is judged whether or not the cross-interference is mainly referred to the cell having a large influence on the periphery. Specifically, the following three methods can be used:

Method 1: RSRP and RSRQ measurements are only on the downlink subframes in the default configured downlink measurement set.

Step 1: The terminal obtains, from the configuration information, a downlink measurement set that needs to perform RSRP and RSRQ measurement; the downlink transmission power of the downlink subframe in the downlink measurement set is the same as the inter-cell interference type; the downlink measurement set may include a subframe. One or more of {0, 1, 5, 6}.

Step 2: For the obtained downlink measurement set, the terminal performs RSRP and RSRQ measurement on the downlink subframe in the downlink measurement set.

Step 3: The terminal reports the measurement result to the base station;

Method 2: The RSRP and RSRQ measurements are respectively performed on downlink subframes in a downlink measurement set configured by the base station. Step 1: The base station sends a downlink measurement set that needs to perform RSRP measurement and a downlink measurement set that needs to perform RSRQ measurement to the terminal.

For each downlink measurement set, the downlink transmit power of the downlink subframe in the downlink measurement set is the same as the inter-cell interference type. As shown in FIG. 3, taking the cell 2 as an example, in order to reduce the influence of the cross interference, the subframe {0, 1, 5, 6} uses the transmission power P1, and the subframe {3, 4, 8, 9} is used. Transmit power P2. Therefore, the downlink measurement set that needs to perform RSRP measurement may include one or several of the subframes {0, 1, 5, 6}, or include one or several of the subframes {3, 4, 8, 9}. The subframe {3, 8} only contains the interference between the terminal and the terminal, and the subframe {0, 1, 4, 5, 6, 9} contains the interference between the base station and the terminal, and the two kinds of interference energy are different, so The downlink measurement set that needs to perform RSRQ measurement may include one or more of subframes {3, 8}, or one or more of subframes {0, 1, 4, 5, 6, 9}. In addition, the downlink measurement set that needs to perform RSRP measurement and RSRQ measurement may also be the same, and the downlink measurement set may include one or more of subframes {3, 8}.

Step 2: The terminal obtains, from the high layer signaling sent by the base station, a downlink measurement set that needs to perform RSRP measurement, and a downlink measurement set that needs to perform RSRQ measurement.

Step 3: The terminal performs RSRP measurement on the downlink subframe in the obtained downlink measurement set that needs to perform RSRP measurement, and performs RSRQ measurement on the obtained downlink subframe in the downlink measurement set that needs to perform RSRQ measurement. Step 4 : The terminal uplinks the RSRP measurement result and the RSRQ measurement result to the base station;

Step 5: The base station receives the RSRP measurement result and the RSRQ measurement result reported by the terminal.

Method 3: The RSRP and RSRQ measurements are respectively performed on downlink subframes in two downlink measurement sets configured by the base station. Step 1: The base station sends two downlink measurement sets that need to perform RSRP measurement and two downlink measurement sets that need to perform RSRQ measurement to the terminal.

For each downlink measurement set, the downlink transmission power and the inter-cell interference type of the downlink subframe in the downlink measurement set are the same.

As shown in FIG. 3, also taking cell 2 as an example, one of the downlink measurement sets that need to perform RSRP measurement includes a subframe.

One or more of {0, 1, 5, 6}, and another downlink measurement set that requires RSRP measurement includes one or more of subframes {3, 4, 8, 9}. One of the downlink measurement sets that need to perform RSRQ measurement includes one or more of subframes {3, 8}, and another downlink measurement set that needs to perform RSRQ measurement includes subframes {0, 1, 4, 5, 6, 9} One or more.

Step 2: The terminal obtains two downlink measurement sets that need to perform RSRP measurement and two downlink measurement sets that need to perform RSRQ measurement, from the high-level signaling sent by the base station;

Step 3: The terminal performs RSRP measurement on the obtained downlink subframe in each downlink measurement set that needs to perform RSRP measurement, and performs RSRQ on the obtained downlink subframe in each downlink measurement set that needs to perform RSRQ measurement. Measurement

Step 4: The terminal reports the RSRP measurement result and the RSRQ measurement result to the base station.

When the RSRP measurement result is reported, the measurement results of the RSRP measurement performed on the downlink subframes in the two downlink measurement sets may be combined into one measurement result, and the combined measurement result is sent to the base station; or The measurement result of the RSRP measurement performed on the downlink subframe in each downlink measurement set in the two downlink measurement sets, Do not report to the base station.

When reporting the RSRQ measurement result, the measurement results of the RSRQ measurement performed on the downlink subframes in the two downlink measurement sets may be combined into one measurement result, and the combined measurement result is sent to the base station; or The measurement results of the RSRQ measurement performed on the downlink subframe in each of the two downlink measurement sets are reported to the base station.

Referring to FIG. 4, an embodiment of the present invention provides a terminal, where the terminal includes:

The obtaining unit 40 is configured to obtain at least one downlink measurement set, where each downlink measurement set obtained includes one or more downlink subframes;

The measuring unit 41 is configured to perform, for each downlink measurement set obtained, a reference signal received power RSRP and/or a reference symbol received shield RSRQ measurement on a downlink subframe in the downlink measurement set;

The reporting unit 42 is configured to report the measurement result to the base station.

Further, the obtaining unit 40 is configured to:

Obtaining at least one downlink measurement set from the configuration information; or

Acquiring at least one downlink measurement set from the high layer signaling sent by the base station; or

The current uplink and downlink configuration information is obtained from the high-level signaling sent by the base station, and at least one downlink measurement set is determined according to the uplink and downlink configuration information.

Further, for each downlink measurement set acquired by the acquiring unit 40, the base station has the same transmit power on the downlink subframe in the downlink measurement set, and/or the inter-cell between the downlink subframes in the downlink measurement set. The type of interference is the same.

Further, the upper unit 42 is used to:

If the measurement unit performs RSRP measurement on the downlink subframes in the multiple acquired downlink measurement sets, the power configuration information of the downlink reference signals corresponding to the multiple downlink measurement sets sent by the base station will be The measurement results of the RSRP measurement performed on the downlink subframes in the downlink measurement set are combined into one measurement result, and the combined measurement result is reported to the base station; or

The measurement result of the RSRP measurement performed on the downlink subframe in each of the plurality of downlink measurement sets is reported to the base station.

Further, the upper unit 42 is used to:

If the measurement unit performs RSRQ measurement on the downlink subframes in the multiple acquired downlink measurement sets, the power configuration information of the downlink reference signals corresponding to the multiple downlink measurement sets sent by the base station will be in the multiple The measurement result of the RSRQ measurement performed on the downlink subframe in the downlink measurement set is combined into one measurement result, and the combined measurement result is reported to the base station; or

Measurement of RSRQ measurements to be performed on downlink subframes in each of the plurality of downlink measurement sets The result is reported to the base station.

Further, the power configuration information includes:

Information about the downlink reference signal transmission power corresponding to the plurality of downlink measurement sets; or

The downlink reference signal transmit power corresponding to the primary measurement set in the plurality of downlink measurement sets, and the downlink reference signal transmit power corresponding to the downlink measurement set in the multiple downlink measurement sets and the downlink reference signal transmit power corresponding to the primary measurement set Difference; or,

The difference between the downlink reference signal transmission power corresponding to the downlink measurement set and the downlink reference signal transmission power corresponding to the primary measurement set, where the downlink reference signal transmission power is the base station in the corresponding downlink measurement set. The power of the downlink reference signal is transmitted on the downlink subframe.

Further, the downlink reference signal is a downlink common reference signal or a downlink measurement signal.

Further, the measuring unit 41 is configured to:

The RSRP and/or RSRQ measurements are performed on the current cell and/or the neighboring cell on the downlink subframe in the downlink measurement set. Referring to FIG. 5, an embodiment of the present invention provides a base station, where the base station includes:

The configuration unit 50 is configured to send the at least one downlink measurement set to the terminal, to indicate that the terminal performs the reference signal received power RSRP and/or the reference symbol received shield RSRQ measurement on the downlink subframe in the downlink measurement set that is sent; or And transmitting the uplink and downlink configuration information to the terminal, to instruct the terminal to determine at least one downlink measurement set according to the uplink and downlink configuration information, and perform RSRP and/or RSRQ measurement on the downlink subframe in the downlink measurement set;

The receiving unit 51 is configured to receive the measurement result on the terminal.

Further, for each downlink measurement set sent by the configuration unit 50, the base station has the same transmit power on the downlink subframe in the downlink measurement set, and/or the inter-cell between the downlink subframes in the downlink measurement set. The type of interference is the same.

Further, the configuration unit 50 is further configured to:

The power configuration information of the downlink reference signal corresponding to the plurality of downlink measurement sets that need to perform RSRP measurement is sent to the terminal when the downlink measurement set that needs to perform RSRP measurement is multiple.

Further, the configuration unit 50 is configured to:

The information about the downlink reference signal transmission power corresponding to each downlink measurement set that needs to be measured by the RSRP is sent to the terminal, where the downlink reference signal transmission power is that the base station sends the downlink reference signal in the downlink subframe in the corresponding downlink measurement set. Power; or,

The downlink reference signal transmission power corresponding to the primary measurement set in each downlink measurement set that needs to perform RSRP measurement, and the downlink reference signal transmission power corresponding to the downlink measurement set corresponding to the downlink measurement set that needs to perform RSRP measurement, and the downlink reference signal transmission corresponding to the primary measurement set The difference in power, sent to the terminal; or,

The difference between the downlink reference signal transmit power corresponding to the downlink measurement set that needs to perform the RSRP measurement and the downlink reference signal transmit power corresponding to the primary measurement set is sent to the terminal. Further, the configuration unit 50 is further configured to:

When the downlink measurement set to be subjected to the RSRQ measurement is set to be multiple, the power configuration information of the downlink reference signal corresponding to the plurality of downlink measurement sets that need to perform the RSRQ measurement is sent to the terminal.

Further, the configuration unit 50 is configured to:

The information about the downlink reference signal transmission power corresponding to each downlink measurement set that needs to be measured by the RSRQ is sent to the terminal, where the downlink reference signal transmission power is that the base station sends the downlink reference signal in the downlink subframe in the corresponding downlink measurement set. Power; or,

The downlink reference signal transmission power corresponding to the primary measurement set in each downlink measurement set that needs to perform the RSRQ measurement, and the downlink reference signal transmission power corresponding to the downlink measurement set corresponding to the downlink measurement set that needs to perform the RSRQ measurement, and the downlink reference signal transmission corresponding to the primary measurement set The difference in power, sent to the terminal; or,

The difference between the downlink reference signal transmission power corresponding to the downlink measurement set of the RSRQ measurement and the downlink reference signal transmission power corresponding to the primary measurement set is sent to the terminal.

Further, the configuration unit 50 is further configured to:

The power configuration information of the downlink reference signal corresponding to the downlink measurement set and/or the downlink measurement set is exchanged with other base stations;

And transmitting power configuration information of the downlink measurement set of the neighboring cell and/or the downlink reference signal corresponding to the downlink measurement set to the terminal.

In summary, the beneficial effects of the present invention include:

In the solution provided by the embodiment of the present invention, after acquiring the downlink measurement set, the terminal performs RSRP and/or RSRQ measurement on the downlink subframe in the obtained downlink measurement set, and performs the measurement result. In this solution, the terminal performs mobility measurement according to the configured downlink measurement set, thereby improving the reliability of the mobility measurement.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. To implement the functions specified in one or more blocks of a flow or a flow and/or block diagram of a flowchart Device.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Although the preferred embodiment of the invention has been described, it will be apparent to those of ordinary skill in the art that <RTIgt; Therefore, the appended claims are intended to be construed as including the preferred embodiments and the modifications

It is apparent that those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, it is intended that the present invention cover the modifications and modifications of the embodiments of the invention.

Claims

Rights request

A mobility measurement method, the method comprising:

The terminal reports the measurement result to the base station.

The method of claim 1, wherein the acquiring, by the terminal, the at least one downlink measurement set comprises: the terminal acquiring the at least one downlink measurement set from the configuration information; or

Obtaining, by the terminal, at least one downlink measurement set from the high layer signaling sent by the base station; or

The terminal obtains the current uplink and downlink configuration information from the high-level signaling sent by the base station, and determines at least one downlink measurement set according to the uplink and downlink configuration information.

The method according to claim 1, wherein, for each downlink measurement set obtained, the base station has the same transmission power in the downlink subframe in the downlink measurement set, and/or the downlink measurement set The sub-cells of the downlink subframe are of the same type.

The method according to claim 1, wherein, if the terminal performs RSRP measurement on the downlink subframes in the plurality of acquired downlink measurement sets, the terminal reports the measurement result to the base station, including:

The terminal combines the measurement results of the RSRP measurement performed on the downlink subframes in the multiple downlink measurement sets into one measurement result according to the power configuration information of the downlink reference signal corresponding to the multiple downlink measurement sets sent by the base station, and Adding the combined measurement result to the base station; or

The terminal reports the measurement result of the RSRP measurement performed on the downlink subframe in each downlink measurement set of the multiple downlink measurement sets to the base station.

The method according to claim 1, wherein, if the terminal performs the RSRQ measurement on the downlink subframe in the plurality of acquired downlink measurement sets, the terminal reports the measurement result to the base station, including:

The terminal combines the measurement results of the RSRQ measurement performed on the downlink subframes in the multiple downlink measurement sets into one measurement result according to the power configuration information of the downlink reference signal corresponding to the multiple downlink measurement sets sent by the base station, and Adding the combined measurement result to the base station; or

The measurement result of the RSRQ measurement performed on the downlink subframe in each downlink measurement set of the plurality of downlink measurement sets is reported to the base station.

The method according to claim 4 or 5, wherein the power configuration information comprises:

Downlink reference signal transmission power corresponding to the primary measurement set in the plurality of downlink measurement sets, and the multiple downlinks Measure the difference between the downlink reference signal transmit power corresponding to the downlink measurement set in the set and the downlink reference signal transmit power corresponding to the primary measurement set; or

The method according to claim 4 or 5, wherein the downlink reference signal is a downlink common reference signal or a downlink measurement signal.

8. The method according to claim 1, wherein the terminal performs RSRP and/or RSRQ measurement on the 'J, the zone and/or the neighboring cell on the downlink subframe in the downlink measurement set.

9. A mobility measurement method, the method comprising:

The base station receives the measurement result reported by the terminal.

The method according to claim 9, wherein, for each downlink measurement set that is sent, the base station has the same transmit power on the downlink subframe in the downlink measurement set, and/or the downlink measurement set The sub-cells of the downlink subframe are of the same type.

The method according to claim 9, wherein, when the base station sends the downlink measurement set that needs to perform RSRP measurement to be multiple, before the base station receives the measurement result reported by the terminal, the method further includes:

The base station sends power configuration information of the downlink reference signal corresponding to the plurality of downlink measurement sets that need to perform RSRP measurement to the terminal.

The method according to claim 11, wherein the base station sends the power configuration information of the downlink reference signal corresponding to the plurality of downlink measurement sets that need to perform the RSRP measurement to the terminal, including:

The base station sends the downlink reference signal transmit power information corresponding to each downlink measurement set of the RSRP measurement to the terminal, where the downlink reference signal transmit power is the base station sends the downlink reference on the downlink subframe in the corresponding downlink measurement set. The power of the signal; or,

The downlink reference signal transmit power corresponding to the primary measurement set in each downlink measurement set of the downlink measurement set and the downlink reference signal transmit power corresponding to the downlink measurement set corresponding to the RSRP measurement and the downlink reference signal corresponding to the primary measurement set The difference in transmit power, sent to the terminal; or,

The method according to claim 9, wherein the downlink that is sent by the base station is required to perform RSRQ measurement. When the measurement set is multiple, before the base station receives the measurement result reported by the terminal, the method further includes:

The base station sends the power configuration information of the downlink reference signal corresponding to the plurality of downlink measurement sets that need to perform the RSRQ measurement to the terminal.

The method according to claim 13, wherein the base station sends the power configuration information of the downlink reference signal corresponding to the plurality of downlink measurement sets that need to perform the RSRQ measurement to the terminal, including:

The base station sends the downlink reference signal transmit power information corresponding to each downlink measurement set of the RSRQ measurement to the terminal, where the downlink reference signal transmit power is the base station sends the downlink reference on the downlink subframe in the corresponding downlink measurement set. The power of the signal; or,

The downlink reference signal transmit power corresponding to the primary measurement set in each downlink measurement set of the RSRQ measurement, and the downlink reference signal transmission power corresponding to the downlink measurement set corresponding to the RSRQ measurement and the downlink reference signal corresponding to the primary measurement set The difference in transmit power, sent to the terminal; or,

The base station sends the difference between the downlink reference signal transmission power corresponding to the downlink measurement set of the RSRQ measurement and the downlink reference signal transmission power corresponding to the primary measurement set, and sends the difference to the terminal.

The method according to any one of claims 11-14, wherein the downlink reference signal is a downlink common reference signal or a downlink measurement signal.

The method according to any one of claims 11-14, further comprising:

The base station interacts with other base stations to exchange power configuration information of the downlink reference signal corresponding to the downlink measurement set and/or the downlink measurement set;

The base station sends the power configuration information of the downlink measurement set of the neighboring cell and/or the downlink reference signal corresponding to the downlink measurement set to the terminal.

17. A terminal, the terminal comprising:

The reporting unit is configured to report the measurement result to the base station.

The terminal according to claim 17, wherein the acquiring unit is configured to:

The terminal according to claim 17, wherein, for each downlink measurement set acquired by the acquiring unit, the base station has the same transmission power on the downlink subframe in the downlink measurement set, and/or the Downstream measurement set The inter-cell interference type of the downlink subframe is the same.

The terminal according to claim 17, wherein the reporting unit is configured to:

The measurement result of the RSRQ measurement performed on the downlink subframe in each of the plurality of downlink measurement sets is reported to the base station.

The terminal according to claim 20 or 21, wherein the power configuration information includes: information about a downlink reference signal transmission power corresponding to each of the plurality of downlink measurement sets; or

The terminal according to claim 20 or 21, wherein the downlink reference signal is a downlink common reference signal or a downlink measurement signal.

The terminal according to claim 17, wherein the measuring unit is configured to:

The RSRP and/or RSRQ measurements are performed on the current cell and/or the neighboring cell on the downlink subframe in the downlink measurement set.

25. A base station, the base station comprising:

The receiving unit is configured to receive the measurement result of the terminal.

The base station according to claim 25, wherein, for each downlink measurement set sent by the configuration unit, the base station transmits the same power on the downlink subframe in the downlink measurement set, and/or the The inter-cell interference types of the downlink subframes in the downlink measurement set are the same.

The base station according to claim 25, wherein the configuration unit is further configured to:

The base station according to claim 27, wherein the configuration unit is configured to:

The difference between the downlink reference signal transmission power corresponding to the downlink measurement set that needs to perform the RSRP measurement and the downlink reference signal transmission power corresponding to the primary measurement set is sent to the terminal.

The base station according to claim 29, wherein the configuration unit is configured to:

The base station according to any one of claims 27-30, wherein the downlink reference signal is a downlink common reference signal or a downlink measurement signal.

The base station according to any one of claims 27 to 30, wherein the configuration unit is further configured to: exchange power configuration information of a downlink reference signal corresponding to a downlink measurement set and/or a downlink measurement set with another base station. ;

The power of the downlink reference signal corresponding to the downlink measurement set and/or the downlink measurement set of the neighboring cell obtained by the interaction Configuration information is sent to the terminal.