WO2009138023A1

WO2009138023A1 - Method, device and system for measuring area signals

Info

Publication number: WO2009138023A1
Application number: PCT/CN2009/071742
Authority: WO
Inventors: 王俊伟; 范霄安
Original assignee: 华为技术有限公司
Priority date: 2008-05-12
Filing date: 2009-05-12
Publication date: 2009-11-19
Also published as: CN101583080B; CN101583080A

Abstract

A method, device and system for measuring area signals, the method is: the terminal receives the cell identification code of specific cell transmitted by serving cell, measures the unicast reference signal of the specific cell based on the cell identification code, and composes the value of the reference signal transmitted in the mode of Single Frequency Network SFN based on the measured value of the unicast reference signal. Thus the problem that large number of commands cost for notifying the terminal target about subframe distributing increase the complexity of the terminal when the terminal measures the intensity of the reference signal transmitted in SFN mode is avoided, and the problem that the measuring period is too long and power consuming of the terminal increases caused by the sparse distributing of the target subframe is also avoided.

Description

Method, device and system for measuring regional signal The present application claims priority to Chinese patent application filed on May 12, 2008, the Chinese Patent Office, Application No. 200810096960.7, entitled "Method, Apparatus and System for Measuring Area Signal" The entire contents of which are incorporated herein by reference.

Technical field

The present invention relates to the field of mobile communication technologies, and in particular, to a method, apparatus and system for measuring a regional signal.

Background technique

With the advancement of society and the development of technology, the demand for users to use multimedia services anytime and anywhere through mobile networks is becoming more and more obvious. How to accurately measure regional signals becomes one of the key issues affecting service quality.

In 2005, the Third Generation Partnership Project (3GPP, Third Generation Partnership Projects) launched the third generation (3G, 3rd Generation) Long Term Evolution (LTE) project to evolve access technologies (E- UTRA, Evolved Universal Terrestrial Radio Access and Evolved Universal Terrestrial Radio Access Network (E-UTRAN) provide better support for the growing needs of operators and terminals.

In the LTE system, downlink communication services can be divided into two categories: Unicast service and Multimedia Broadcast Multicast Service (MBMS). A unicast service is a point-to-point service in which a data source sends data to a terminal, such as a traditional traffic service. The MBMS service refers to a point-to-multipoint service in which a data source sends data to multiple terminals, such as a mobile TV service. The introduction of the MBMS service is to realize the resource sharing of the network (including the core network and the access network), and realize the service of the multimedia terminal with as many identical needs as possible with as few resources as possible. In the radio access network, MBMS services can achieve both plain text and low-rate message-like multicast and broadcast, as well as multicast and broadcast of higher-speed (256 kbps) multimedia services by using common transport channels and public radio bearers. .

In the traditional transmission mode, a cell sends a service to a terminal in a cell, which is called a single-cell transmission mode, and a unicast service usually adopts a single-cell transmission mode. The MBMS service can adopt single cell transmission or multi-cell transmission, when the MBMS service adopts a single cell. When transmitting, it is usually a point-to-multipoint method called SC-PTM (Single-cell Point To Multipoint transmission). When the MBMS service adopts the multi-cell transmission mode, the manner in which multiple cells simultaneously transmit the MBMS service at the same frequency and the same content is also called the SFN (Single Rrequency Network) mode, and the same frequency and the same content are transmitted. The area composed of a group of cells of the MBMS service is called a co-frequency network area (SFA, SFN Area). A cell can participate in forming a plurality of different intra-frequency network regions.

The MBMS service can use the same carrier as the unicast service, that is, the MC (Mixed Carrier) mode, or can independently use a separate carrier, that is, a DC (Dedicated Carrier) mode. In the case of the MC mode, the unicast service, the MBMS service transmitted in the single cell mode, and the MBMS service (MBSF service) transmitted in the SF mode are time-division multiplexed. According to the decision of the 3GPP conference, the two services are sub-frame time-division multiplexed, that is, one subframe is used for unicast service and single-cell MBMS service transmission, or for MBSFN service transmission. The subframe used for the unicast service and the single cell MBMS service transmission is called a unicast subframe, and the subframe used for the MBSFN service transmission is called an MBSF subframe, as shown in FIG. According to the decision of the 3GPP meeting, the distribution of MBSFN subframes is notified by using high layer signaling, and the remaining subframes are unicast subframes.

In the same cell, the services sent by different SFAs are also time-division multiplexed at the sub-frame level, that is, the same sub-frame can only send services from one SFA, as shown in Figure 2.

When the user is at the cell edge, the user needs to measure the signals of the serving cell and the neighboring cell to determine whether to stay in the serving cell, or to switch or reselect to the neighboring cell. When the user only receives the unicast service, the user measures the signal transmitted by the single cell of the serving cell and the neighboring cell, specifically, the strength of the unicast reference signal (RSRP). According to the agreement, in the LTE system, the serving cell does not broadcast the identification code of the adjacent intra-frequency cell, and the user blindly detects the identification code and the reference signal of the neighboring cell.

When the user receives the MBMS service, there may be a case where the user needs to select between the SC-PTM transmission mode and the SF transmission mode. As shown in FIG. 3, the user receiving the MBMS service is at the cell edge, and the service is sent in the SC-PTM mode on one side and the SFA mode on the other side, and the MC mode is on the other side. Case. When the user is at the edge of the two cells, the signals of the cells on both sides are measured. According to the prior art, when the user only measures the signal sent by the single cell mode, the signal of the MBMS service sent by the SF mode is generally underestimated, thereby affecting the judgment of switching and reselection, and reducing the receiving performance of the user. words. The prior art method is to allow the user to measure the reference signal strength (MRSRP) sent by the SF mode for the handover and reselection when the user receives the MBMS service. The reference signal is from the same SFA as the MBMS service received by the user.

The inventor found in the research that if the user wants to measure the reference signal strength transmitted by the SFN mode, it needs to know the distribution of the subframe where the reference signal strength transmitted by the SF mode is located, and the sub-frame where the SF mode transmits the reference signal strength. The distribution of the frame requires a large amount of local cell signaling to be notified, or the user is allowed to read the neighbor cell signaling, thereby increasing user complexity. In addition, the distribution of these sub-frames may be sparse, which will increase the measurement period and increase the user's power consumption.

Summary of the invention

In view of this, an object of the embodiments of the present invention is to provide a method, an apparatus, and a system for implementing a measurement area signal, so that a user can measure a regional signal without increasing the signaling of the local cell and without reading the signaling of the neighboring cell. value.

To achieve the above objective, the embodiment of the present invention provides the following technical solutions:

A method of measuring a regional signal, the method comprising:

Receiving a cell identifier of a specific cell sent by the serving cell;

Measuring a unicast reference signal of the specific cell according to the cell identifier;

And synthesizing the value of the reference signal transmitted in the same frequency network SFN manner according to the measured value of the unicast reference signal.

A terminal for measuring a regional signal, comprising:

a receiving unit, configured to receive a cell identifier of a specific cell;

a measuring unit, configured to measure a unicast reference signal of a cell corresponding to the cell identifier;

And a synthesizing unit, configured to synthesize the measured value of the unicast reference signal into a value of the reference signal sent by the SF mode.

A system for measuring regional signals, including:

a network side device, configured to notify a cell identifier of a specific cell of the terminal;

The terminal is configured to measure a unicast reference signal of the cell corresponding to the cell identifier, and synthesize the measured value of the unicast reference signal into a value of the reference signal sent by the SF mode.

A method of measuring a regional signal, comprising:

Receiving a cell identifier of a specific cell sent by the serving cell; Measuring a unicast reference signal of the specific cell according to the cell identifier;

A measured value of the CoMP region signal is synthesized based on the measured value of the unicast reference signal.

A terminal for measuring a regional signal, comprising:

a receiving unit, configured to receive a cell identifier of a specific cell;

And a synthesizing unit, configured to synthesize a measurement value of the CoMP region signal according to the measured value of the unicast reference signal.

A system for measuring regional signals, including:

a terminal, configured to measure a unicast reference signal of a cell corresponding to the cell identifier, and according to a measured value of the unicast reference signal, a measured value of the CoMP region signal.

It can be seen that, in the embodiment of the present invention, receiving a cell identifier of a specific cell sent by the serving cell; measuring a unicast reference signal of the specific cell according to the cell identifier; and synthesizing the measured value according to the unicast reference signal The method of the embodiment of the present invention avoids the large amount of signaling that is required to notify the terminal of the target subframe distribution, increases the complexity of the terminal, and avoids the problem caused by the sparse distribution of the target subframe. The measurement cycle is too long, which increases the power consumption of the terminal. DRAWINGS

FIG. 1 is a schematic diagram of multiplexing of an MB mode, an MBSF subframe, and a unicast subframe;

2 is a schematic diagram of multiplexing of MBSF subframes and unicast subframes from different SFAs in MC mode;

Figure 3 is a schematic diagram of a scenario in which SC-PTM and MBSF switch reselection;

4 is a flowchart of a method according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an apparatus according to an embodiment of the present invention; FIG.

6 is a schematic structural diagram of a device according to another embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a device according to another embodiment of the present invention; FIG.

FIG. 8 is a schematic structural diagram of a system according to an embodiment of the present invention; FIG.

FIG. 9 is a scene diagram of a method according to an embodiment of the present invention;

FIG. 10 is a scene diagram of a method according to another embodiment of the present invention.

detailed description The embodiments of the present invention provide a method, an apparatus, and a system for measuring a region signal. The embodiments of the present invention are described in detail below with reference to the accompanying drawings. The method provided by the embodiment of the present invention is described in detail below in combination with different application scenarios. The details include the following steps:

Step 401: Receive a cell identifier of a specific cell sent by the serving cell.

The specific cell specifically includes one or more cells within the SFA that transmit the target MBMS service.

The serving cell is typically a cell that transmits the target MBMS service in the form of a single cell.

If there are multiple SFAs around the serving cell, the cell identifier in one or more SFAs needs to be notified to the terminal.

The specific form of the notification may be a high layer signaling, which may be sent on a control channel MCCH channel corresponding to the MBMS service.

Preferably, one or more cells in the SFA may be all cells in the SFA that can be detected when the terminal is in the serving cell.

Preferably, one or more cells in the SFA may be a cell adjacent to the serving cell.

Preferably, one or more cells in the SFA may be one or more cells that have the greatest impact on the serving cell. The specific meaning of the one or more cells having the greatest impact is the cell with the shortest equivalent distance after considering the problems of transmission power, path loss, and the like.

Step 402: Measure a unicast reference signal of a specific cell according to the cell identifier.

Preferably, the strength (RSRP) of the unicast reference signal can be measured.

A certain number of reference signals (referred to as pilot Pilots) are transmitted in each subframe. o Within multiple symbols of a unicast subframe and within the first or first two symbols of the MBSF subframe, the base station will Send a unicast reference signal. The unicast reference signal differs depending on the cell identification code and is called a cell-specific signal. In the MBSF subframe, the base stations belonging to the same SFA area are The same MBSF reference signal is transmitted on the same time-frequency resource, and the MBSF reference signal received by the terminal is a superposed signal of a plurality of signals. The MBSFN reference signal differs depending on the SFA area and is called a SFA-specific signal.

The existing method is to directly measure the MBSFN reference signal, and the obtained value is a superimposed signal that the base station belonging to the same SFA area transmits the same MBSF reference signal on the same time-frequency resource. The MBSF reference signal is directly measured, and the terminal needs to know the subframe distribution of the target MBMS service. This requires a large amount of local cell signaling to be notified, or the terminal is allowed to read the neighbor cell signaling and increase the terminal complexity.

In addition, the distribution of these subframes may be sparse, which will increase the measurement period and increase the terminal power consumption.

There is a fixed relationship between the unicast reference signal sent by the same cell and the MBSF reference signal, for example, the power is equal, or there is a fixed power difference.

Preferably, the fixed relationship is predetermined.

According to the agreement, in the LTE system, the serving cell does not broadcast the identification code of the adjacent intra-frequency cell, and the terminal blindly detects the identification code and the reference signal of the neighboring cell.

Therefore, if the identification code of the cell in the SFA of the target MBMS service is not known, the terminal can only blindly detect the identification code and reference signal of the neighboring cell, and does not know which one is related to the target service and participates in the SF transmission mode. After the serving cell notifies the one or more cells in the SFA of the target MBMS service to send the cell identity code of the cell, the terminal may distinguish the SF mode from the plurality of unicast reference signals in the cell in the SF mode to send the target MBMS service. Broadcast reference signal. Preferably, in an embodiment of the present invention, before step 402, the method further includes:

The cell identification code to be detected is selected from the received cell identification code.

The step 402 is specifically as follows:

The unicast reference signal of the corresponding cell is measured according to the selected cell identifier to be detected.

For example, currently, 10 cell identification codes are received, and 7 of them can be selected as the cell identification code to be detected, and the unicast reference signals of the corresponding 7 cells are detected according to the 7 to-be-detected cell identification codes.

Step 403: Synthesize the value of the reference signal sent by the SF mode according to the measured value of the unicast reference signal.

The terminal measures the unicast reference signal strength of the cell in the SFA that transmits the target MBMS service at the terminal. After that, the value of the reference signal transmitted by the SF method is synthesized using the measured values.

There are many specific implementation methods for the synthesis, including:

The terminal selects one or more measured values from the measured values for synthesis.

Preferably, one or more measured values having the largest value may be selected for synthesis.

When only one unicast reference signal measurement value is used for synthesis, an adjustment amount may be added to the unicast reference signal as the strength of the signal transmitted by the SF mode;

When synthesizing with a plurality of unicast reference signal measurement values, a plurality of measurement values may be accumulated, or a plurality of measurement values may be cumulatively added, or an adjustment amount may be added after the accumulation, or a weighted addition and an adjustment amount may be added.

Preferably, before step 403, the method further includes:

Receiving, by the terminal, a weight or/and an adjustment amount sent by the serving cell;

Alternatively, the terminal stores the weight or/and the amount of adjustment on its own.

The synthesis methods listed herein are only a few examples, and the synthesis methods are not exhaustive and are limited by the embodiments of the present invention.

Corresponding to the method embodiment, referring to FIG. 5, an embodiment of the present invention provides a terminal for measuring an area signal, where the terminal includes:

The receiving unit 501 is configured to receive a cell identifier of a specific cell.

The specific cell specifically includes one or more cells in the SFA that sends the target MBMS service;

The measuring unit 502 is configured to measure a unicast reference signal of the cell corresponding to the cell identifier, and the synthesizing unit 503 is configured to synthesize the value of the reference signal sent by the SF mode according to the measured value of the unicast reference signal.

Different algorithms may be used in the synthesizing unit 503, and different parameters may be used in each algorithm.

Preferably, when only one unicast reference signal is measured, an adjustment amount may be added to the unicast reference signal as the strength of the signal transmitted by the SF mode.

Preferably, the specific implementation of the synthesizing unit 503 is:

a first synthesizing unit, configured to accumulate measured values of the unicast reference signal, and use the accumulated value as a reference for sending in the SF mode; Or a second synthesizing unit, configured to perform weighted accumulation on the measured value of the unicast reference signal by using the weighting coefficient, and use the accumulated value as a reference for transmitting in the SF mode;

Alternatively, the third combining unit is configured to accumulate the measured values of the unicast reference signal by using the adjustment amount, and adjust the value as the value of the reference signal sent by the SF mode.

Preferably, the second synthesizing unit further includes:

a parameter receiving module, configured to receive a weighting coefficient sent by the serving cell;

Alternatively, a parameter storage module for storing weighting coefficients.

Preferably, the third synthesizing unit further includes:

a parameter receiving module, configured to receive a serving cell sending an adjustment amount;

Or, a parameter storage module for storing the adjustment amount.

The following is a detailed description of an embodiment of the present invention by taking a synthesis unit in the device as a second synthesis unit. Referring to FIG. 6, the device includes a receiving unit 601, a measuring unit 602, and a second combining unit 603. The synthesizing unit 603 further includes a parameter storage module 6031 or a parameter receiving module 6032.

When the second synthesizing unit 603 includes the parameter storage module 6031, the working process of the device is: the receiving unit 601 receives the cell identifier of one or more cells in the SFA of the transmitting target MBMS service sent by the serving cell, and measures The unit 602 measures the unicast reference of the cell corresponding to the identifier according to the cell identifier, and the synthesizing unit 603 performs weighted accumulation on the measured value of the measuring unit 602 by using the weighting coefficient stored in the parameter storage module 6031, and sends the accumulated value as the SF mode. The value of the reference signal.

When the parameter receiving module 6032 is included in the second synthesizing unit 603, referring to FIG. 7, the working process of the device is: The receiving unit 601 receives the cell of one or more cells in the SFA that sends the target MBMS service sent by the serving cell. The identification unit, the measurement unit 602 measures the unicast reference of the cell corresponding to the identifier according to the cell identifier, and the synthesizing unit 603 receives the weighting coefficient sent by the serving cell by using the parameter receiving module 6032, and performs weighted accumulation on the measured value of the measuring unit 602, and accumulates The obtained value is taken as the value of the reference signal transmitted by the SF method.

Corresponding to the method embodiment, referring to FIG. 8, the present invention further provides a system for measuring a regional signal, including:

a network side device 801, configured to notify a cell identifier of a specific cell of the terminal; The terminal 802 is configured to measure a unicast reference signal of the cell corresponding to the cell identifier, and synthesize the measured value of the unicast reference signal into a value of the reference signal sent by the SF mode.

The specific cell specifically includes one or more cells within the SFA that transmit the target MBMS service. The workflow of the system shown in Figure 8 is:

After receiving the cell identification code of the specific cell notified by the network side device 801, the terminal 802 measures the unicast reference signal of the cell corresponding to the cell identifier, and synthesizes the value of the reference signal sent by the SF mode according to the measured measurement value.

The specific structure of the terminal 802 and the network side device 801 is as shown in FIG. 5, FIG. 6 and FIG. 7, which will not be described in detail.

The method provided by the embodiment of the present invention can also be applied to a multi-cell joint service scenario. In wireless communication systems, Coordinated Multi-Point Transmission (CoMP) technology is an important means to improve the overall performance of the cell and the performance of the cell edge users. In a CoMP system, a network node includes a 3G base station (eNodeB) and one or more access points (APs, Access Points) and user terminals (UE, User Equipment). Multiple APs are geographically dispersed and connected to the same or different eNodeBs. Multiple APs can cooperate to transmit and receive data. These coordinated APs can belong to the same eNodeB or different eNodeBs, and do not affect the implementation of the embodiments of the present invention.

The relationship between the AP and the cell in the traditional sense may be that one cell contains one AP, or one cell contains multiple APs. For convenience of description, the method provided by the embodiment of the present invention will be described below by taking an AP as an example.

Generally, one UE may have one or more cells serving it. When multiple cells cooperate to serve the UE, the UE selects one cell as the serving cell (Anchor Cell, Serving Cell). The cell function is the same as the serving cell of the scenario in which the signal is transmitted in the same frequency network mode.

In the multi-cell joint service scenario, the method for measuring a region signal provided by the embodiment of the present invention specifically includes:

Receiving a cell identifier of a specific cell sent by the serving cell;

The CoMP area is a set of cells that provide services to users through CoMP technology. Preferably, in other embodiments of the present invention, before measuring the unicast reference signal of the specific cell according to the cell identifier, the method further includes:

Selecting a to-be-detected 'area' from the received cell identification code;

Correspondingly, measuring the unicast reference signal of the specific cell according to the cell identifier that is displayed is: measuring a unicast reference signal of the corresponding cell according to the to-be-detected cell identifier.

The method provided by the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

In an embodiment of the present invention, as shown in FIG. 8, a part of neighboring cells is selected to form a CoMP reporting set. As the UE moves, the UE encounters a new cell, and the access point of the cell is an API. At this time, it is possible to determine whether to add the API by comparing the channel quality of the API with the integrated channel quality of the report set. In the report set, specifically, the integrated channel quality of the reported set may be the integrated channel strength of the report set.

A method of measuring the integrated channel quality of the set of reports includes:

Step S11: Receive a cell identifier in a report set sent by the serving cell.

In the embodiment of the present invention, a cell includes an AP, so the AP represents a cell in the figure. The serving cell is one of the CoMP report sets. In this case, the serving cell may transmit the cell identification code of one or more cells in the set of the advertisements, or may transmit the cell identification codes of all the cells in the advertisement set.

Preferably, the serving cell may only select the cell identity code of the neighboring cell to transmit.

Preferably, the one or more cells in the report set may be one or more cells that have the greatest impact on the serving cell, and the specific meaning of the one or more cells that have the greatest impact is that the transmit power and the path are considered. The cell with the shortest equivalent distance after the loss or the like.

Step S12: Measure a unicast reference signal of a corresponding cell in the report set according to the cell identifier.

Preferably, in an embodiment of the present invention, before step S12, the method further includes:

Correspondingly, the step S12 is specifically:

And measuring, according to the to-be-detected cell identifier, a unicast reference signal of a corresponding cell in the report set. Step S13: Synthesize the integrated channel quality value of the report set according to the measured value of the unicast reference signal.

After obtaining the integrated channel quality of the report set, compared with the channel quality of the API, it can be determined whether the API is included in the report set.

Multiple geographically separated segments directly or indirectly participating in the transmission of the UE data information

CoMP cooperating set (CoMP cooperating set). The above method of measuring the aggregated channel quality of the report set is equally applicable to the set of coordinated cells.

In the wireless communication system, in order to reduce scheduling complexity and X2 interface transmission overhead, the network side may define a CoMP virtual cell set (Virtual cell, CoMP cell cluster). The cell under one or more base stations is divided into a CoMP virtual cell set. A cell that simultaneously serves the UE may belong to one or more CoMP virtual cell sets.

When a plurality of virtual cell sets exist around the UE, the virtual channel set may be selected by comparing the integrated channel quality of each virtual cell set. Specifically, the integrated channel quality of the virtual cell may be the integrated channel strength of the virtual cell. .

Referring to FIG. 9, the embodiment of the present invention uses two virtual cell sets (virtual cell set 1 and virtual cell set).

2) The method for determining the integrated channel quality of the virtual cell set provided by the embodiment of the present invention is described as an example, and specifically includes:

Step S21: Receive a cell identifier in a virtual cell set sent by the serving cell.

The serving cell is adjacent to the CoMP virtual cell set or is one of the CoMP virtual cell set. It is assumed that the current serving cell of the UE is one of the virtual cell set 1. In the embodiment of the present invention, a cell includes an AP, so the AP represents a cell in the figure.

In this case, the serving cell may transmit the cell identification code of one or more cells in the virtual cell set, or may transmit the cell identification codes of all the cells in the virtual cell set.

The virtual cell set may be one or multiple. For example, in addition to the virtual cell set 1 in which the current serving cell is located, there is also a virtual cell set 2.

That is, when there are multiple virtual cell sets, the serving cell may separately send the cell identification codes in each virtual cell set.

Preferably, the serving cell may only select a cell identifier that is adjacent to its neighboring cell for transmission. give away.

Preferably, the one or more cells in the virtual cell set may be one or more cells that have the greatest impact on the serving cell, and the specific meaning of the one or more cells that have the greatest impact is that the transmit power is considered. A cell with the shortest equivalent distance after a path loss or the like.

Step S22: Measure a unicast reference signal of the corresponding cell in each virtual cell set according to the cell identifier.

Preferably, in an embodiment of the present invention, before step S22, the method further includes:

Correspondingly, the step S22 is specifically:

And measuring, according to the to-be-detected cell identifier, a unicast reference signal of the corresponding cell in each of the virtual cell sets.

Step S23: Acquire an integrated channel quality value of each virtual cell set according to the measured value of the unicast reference signal.

After obtaining the integrated channel quality of each virtual cell set, after comparison, each virtual cell set can be selected. For example, the UE may select a virtual cell set with the best integrated channel quality as its service, and more specifically, may select a virtual cell set with the highest integrated channel quality value.

When the area signal is measured by using the method provided by the embodiment of the present invention, whether the signal is transmitted in the same-frequency network mode or in the multi-cell joint service scenario, the measured value of the unicast reference signal is used to synthesize a The measured value of the regional signal, for example, in a scenario in which the signal is transmitted in the same-frequency network mode, the measured value of the regional signal corresponds to the value of the reference signal transmitted in the same-frequency network SF mode; in the multi-cell joint service scenario, The measured value of the area signal is a measured value of the CoMP area signal, and may be, for example, an integrated channel quality value of the squad set or an integrated channel quality value of the virtual cell set. For a specific synthesis method, refer to the description in the scenario of transmitting signals in the same frequency network mode. , will not repeat them here.

Corresponding to the foregoing method embodiment, the embodiment of the present invention further provides a terminal for measuring a region signal, including:

a receiving unit, configured to receive a cell identifier of a specific cell;

And a synthesizing unit, configured to synthesize a measured value of the CoMP region signal according to the measured value of the unicast reference signal. The synthesizing unit includes:

a first synthesizing unit, configured to accumulate measured values of the unicast reference signal, and use the accumulated value as a measured value of the CoMP area signal;

Or a second combining unit, configured to perform weighted accumulation on the measured value of the unicast reference signal by using the weighting coefficient, and use the accumulated result as the measured value of the CoMP area signal;

Alternatively, the third synthesizing unit is configured to accumulate the measured value of the unicast reference signal by using the adjustment amount, and adjust the value as the measured value of the CoMP area signal.

In an embodiment of the present invention, the specific cell is one or more cells in the set of reports; the measured value of the CoMP area signal is an integrated channel quality value of the report set;

In another embodiment of the present invention, the specific cell is one or more cells in the virtual cell set; the measured value of the CoMP region signal is an integrated channel quality value of the virtual cell set.

Another embodiment of the present invention provides a system for measuring an area signal, including:

The terminal is configured to measure a unicast reference signal of the cell corresponding to the cell identifier, and synthesize the measured value of the CoMP region signal according to the measured value of the unicast reference signal.

The above is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims

Rights request

A method of measuring a regional signal, the method comprising:

Receiving a cell identifier of a specific cell sent by the serving cell;

The method according to claim 1, wherein the serving cell is: a cell that transmits a target multimedia broadcast multicast MBMS service in a single cell format.

The method according to claim 1 or 2, wherein the specific cell is: one or more cells in the same-frequency network area SFA that are adjacent to the serving cell and send the target MBMS service.

4. The method according to claim 3, wherein when there are a plurality of the transmission destinations

The SFA of the MBMS service receives the cell identification code of one or more cells in the one or more SFAs sent by the serving cell.

The method according to claim 3, wherein one or more cells in the SFA include:

When the terminal is in the serving cell, all cells in the SFA that can be detected by the terminal; or one or more cells in the SFA that have the greatest impact on the serving cell.

6. The method according to claim 1, wherein the specific implementation of measuring the unicast reference signal of the specific cell comprises:

The strength of the unicast reference signal is measured.

7. The method according to claim 1, wherein the value of the reference signal sent by the synchronizing network SF mode is specifically:

And accumulating the measured value as a value of the reference signal sent by the SF mode; or, weighting and accumulating the measured value, and using the obtained value as the value of the reference signal sent by the SF mode;

Alternatively, the measured value is added and then adjusted, and the obtained value is used as the value of the reference signal transmitted by the SFN mode in the same frequency network.

The method according to claim 7, wherein when the measured value is one, the synthesizing is specifically: adding an adjustment amount to the measured value.

The method according to any one of the preceding claims, further comprising: before weighting or adding an adjustment amount to the measured value, further comprising:

Alternatively, the terminal stores the weight or / and the amount of modulation on its own.

10. The method according to claim 1, wherein synthesizing the value of the reference signal sent by the same-frequency network SF according to the measured value of the unicast reference signal further includes:

Select one or more measured values to synthesize the value of the reference signal transmitted in the same frequency network SF mode.

11. A terminal for measuring a regional signal, comprising:

a receiving unit, configured to receive a cell identifier of a specific cell;

The terminal according to claim 11, wherein the synthesizing unit is specifically: a first synthesizing unit, configured to accumulate measured values of the unicast reference signal, and use the accumulated value as a reference signal sent by the SF mode. Value

Or a second combining unit, configured to perform weighted accumulation on the measured value of the unicast reference signal by using the weighting coefficient, and use the accumulated result as the value of the reference signal sent by the SF mode;

Alternatively, the third combining unit is configured to accumulate the measured value of the unicast reference signal by using the adjustment amount, and adjust the value as the value of the reference signal sent by the SF mode.

The terminal according to claim 11, wherein the specific cell is specifically one or more cells in an SFA that transmits a target MBMS service.

14. A system for measuring a regional signal, comprising:

15. A method of measuring a regional signal, comprising:

And measuring, according to the measured value of the unicast reference signal, a measured value of the coordinated multi-point transmission CoMP region signal, where the CoMP region is a set of cells serving the user by the CoMP technology.

16. The method of claim 15 wherein:

The CoMP area is specifically a CoMP report set, and the specific cell is one or more cells in the CoMP report set; the serving cell is a cell in the CoMP 4 report set;

Or,

The CoMP area is specifically a CoMP virtual cell set, and the specific cell is one or more cells in the CoMP virtual cell set; the serving cell is adjacent to the CoMP virtual cell set or is the CoMP virtual cell. A cell in the set.

17. The method of claim 15 wherein:

The measured value of the CoMP region signal is an integrated channel quality value of the region signal.

The method according to claim 15, wherein before synthesizing the measured value of the CoMP region signal, the method further comprises:

One or more measured values are selected from the measured values of the unicast reference signals for synthesizing the measured values of the CoMP region signals.

The method according to any one of claims 15 to 18, wherein synthesizing the measured values of the CoMP region signal according to the measured value of the unicast reference signal comprises:

And accumulating the measured value as a measured value of the CoMP area signal; or weighting the measured value, and using the obtained value as a measured value of the CoMP area signal;

Alternatively, the measured value is accumulated and an adjustment amount is added, and the obtained value is used as a measured value of the CoMP area signal.

The method according to claim 19, wherein when the measured value is one, the synthesizing is specifically: adding an adjustment amount to the measured value.

The method according to claim 20, further comprising: before weighting or adjusting the measured value, further comprising:

Receiving, by the terminal, a weight or/and an adjustment amount sent by the serving cell; Alternatively, the terminal stores the weight or/and the amount of modulation on its own.

The method according to any one of claims 15 to 18, further comprising: before measuring the unicast reference signal of the specific cell according to the displayed cell identifier;

Selecting a to-be-detected 'area' from the received cell identification code;

Correspondingly, the unicast reference signal of the specific cell is measured according to the cell identifier, and the unicast reference signal of the corresponding cell is measured according to the to-be-detected cell identifier.

23. A terminal for measuring a regional signal, comprising:

a receiving unit, configured to receive a cell identifier of a specific cell;

The terminal according to claim 23, wherein the synthesizing unit comprises: a first synthesizing unit, configured to accumulate measured values of the unicast reference signal, and use the accumulated value as the measurement of the CoMP area signal Value

Or the second synthesizing unit is configured to perform weighted accumulation on the measured values of the unicast reference signal by using the weighting coefficient, and use the accumulated result as the measured value of the CoMP region signal;

The CoMP area is specifically a CoMP report set, and the specific cell is one or more cells in the CoMP report set; the serving cell is a cell in the CoMP 4 report set.

25. The terminal of claim 23, wherein:

Or,

The CoMP area is specifically a CoMP virtual cell, and the specific cell is one or more cells in the CoMP virtual cell; the serving cell is adjacent to the CoMP virtual cell or is one of the CoMP virtual cells. Community. 25. Apparatus according to claim 22, wherein The measured value of the CoMP zone signal is an integrated channel quality value of the zone signal.

26. A system for measuring a regional signal, comprising: