WO2013020445A1 - Method, system and device for configuring and reporting measurement information - Google Patents

Abstract

An embodiment of the present application relates to the technical field of wireless communications, in particular to a method, system and device for configuring and reporting measurement information, used to configure the channel information of multiple transmission points and multiple carriers, so that a user equipment (UE) is incapable of reporting the channel information of multiple transmission points and multiple carriers, thus satisfying the requirement for CoMP transmission. The method for configuring measurement information of the embodiment of the present application comprises: a network side determines a measurement information set according to the transmission point on the carrier required to be measured by the UE, the measurement information set comprises the measurement information of at least one transmission point; the network side configures the determined measurement information set for the UE. Because the network side configures the transmission point on the carrier, the UE can report the channel information of multiple carriers and multiple transmission points, thus satisfying the requirement for CoMP transmission.

Description

 Method, system and device for configuring measurement information and performing the above method. The application is submitted to the Chinese Patent Office on August 5, 2011, and the application number is 201110224740.X, and the invention name is "configuration measurement information and reporting method, system" The priority of the Chinese Patent Application, the entire disclosure of which is incorporated herein by reference.

Technical field

 The present invention relates to the field of wireless communication technologies, and in particular, to a method, system and device for configuring measurement information and performing reporting.

Background technique

 Coordinated Multipoint Transmission/Reception (CoMP) technology refers to the cooperation between multiple transmission points separated geographically. Through the cooperative transmission between multiple transmission points, the interference between different transmission points can be effectively reduced, and the throughput of the user equipment, especially the cell edge user equipment, is improved. The downlink multi-point coordinated transmission technology scheme is mainly divided into two categories: cooperative scheduling/beamforming (CS/CB, cooperative scheduling/beamforming) and joint processing (Joint processing).

 Co-scheduling is to avoid or reduce the interference between each other through the coordination of time, frequency and space resources between transmission points. The small interval interference is the main factor that restricts the performance of the cell edge user equipment (UE). Therefore, cooperative scheduling can improve the performance of the cell edge UE by reducing the interference between cells. As shown in FIG. 1A, through coordinated scheduling of three transmission points, three UEs that may be mutually interfered are scheduled to mutually orthogonal resources, thereby effectively avoiding interference between transmission points. The cooperative beam formability is configured to schedule the direction of the multiple UEs in the coordinated cell, so that the beam directions of the UEs in different cells are orthogonal to each other, thereby reducing the interference between the UEs. Therefore, in order to suppress the interference of the transmission of the UE to other UEs, the downlink channel information of the coordinated cell needs to be obtained at the base station.

 The joint processing scheme includes dynamic transmission point switching and joint transmission. In the dynamic transmission point switching, the base station can dynamically switch to the transmission point of the signal transmitted by the user equipment, so that the optimal transmission point is transmitted every time. In order to implement dynamic transmission point handover, the base station needs to obtain channel information of multiple selectable cells through a feedback channel, or obtain channel information of an optimal transmission point. In the joint transmission scheme, multiple transmission points simultaneously transmit data to the UE to enhance the UE receiving signal. As shown in FIG. 1B, three transmission points transmit data to one UE on the same resource, and the UE simultaneously receives signals of multiple cells. On the one hand, the superposition of useful signals from multiple cells can improve the signal shield received by the UE, and on the other hand, reduce the interference received by the UE, thereby improving system performance. Such a scheme requires the UE to feed back channel information of multiple cells, and even feed back relative channel information between cells, thereby ensuring that multiple cells can jointly perform scheduling, precoding, and data transmission.

In the Long Term Evolution-Advanced (LTE-A) system, the UE estimates the channel information of the base station to the UE according to the channel state information measurement reference signal (CSI-RS) configured by the base station, and calculates the channel shield quantity indication. (Channel Quality Indicator, CQI) information, feedback to the base station, and CQI - possible feedback The index of the precoding matrix (PMI) and the number of data streams (RI). Each UE can only configure one UE-specific CSI-RS for measurement of downlink channel information, thereby measuring channel information of the serving cell base station to the UE.

 However, it is difficult to configure multiple carrier channel information at multiple transmission points, so that the user equipment cannot report multiple carrier channel information of multiple transmission points, which cannot meet the requirements of CoMP transmission.

Summary of the invention

 A method and a device for configuring measurement information provided by an embodiment of the present invention are configured to configure multiple carrier channel information of multiple transmission points, so that the user equipment can report multiple carrier channel information of multiple transmission points to meet The need for CoMP transmission.

 The method, the system and the device for reporting are provided for the user equipment to report multiple carrier channel information of multiple transmission points, so as to meet the requirements of CoMP transmission.

 A method for configuring measurement information provided by an embodiment of the present invention includes:

 The network side determines a measurement information set according to a transmission point on the carrier that is required to be measured by the user equipment, where the measurement information set includes measurement information of the at least one transmission point;

 The network side configures the determined measurement information set for the user equipment.

 A method for reporting is provided by the embodiment of the present invention, including:

 The user equipment performs CSI measurement according to the received measurement information of the transmission point in the measurement information set from the network side;

 The user equipment reports the obtained measurement information to the network side.

 A network side device for configuring measurement information provided by the embodiment of the present invention includes:

 An information determining module, configured to determine a measurement information set according to a transmission point on a carrier that is required by the user equipment, where the measurement information set includes measurement information of the at least one transmission point;

 The configuration module is configured to configure the determined measurement information set for the user equipment.

 A user equipment for reporting is provided by the embodiment of the present invention, including:

 a measuring module, configured to perform CSI measurement according to the received measurement information of the transmission point in the measurement information set from the network side;

 The reporting module is configured to report the obtained measurement information to the network side.

 A system for reporting is provided by the embodiment of the present invention, including:

 a network side device, configured to determine a measurement information set according to a transmission point on a carrier that is required by the user equipment, where the measurement information set includes measurement information of the at least one transmission point, and the determined measurement information set is configured for the user equipment; The CSI measurement is performed according to the measurement information of the transmission point in the received measurement information set, and the obtained measurement information is reported to the network side device.

The network side configures the transmission point on the carrier, so that the user equipment can report the channel information of the multi-carrier multi-transmission point to meet the requirements of the CoMP transmission. The user equipment can report the channel information of the multi-carrier multi-transmission point according to the configuration on the network side, thereby satisfying the requirement of the CoMP transmission.

DRAWINGS

 1A is a schematic diagram of collaborative scheduling in the background art;

 1B is a schematic diagram of cooperative transmission in the background art;

 2 is a schematic structural diagram of a system for reporting according to an embodiment of the present invention;

 3 is a schematic structural diagram of a network side device configured with measurement information according to an embodiment of the present invention;

 4 is a schematic structural diagram of a user equipment reported in an embodiment of the present invention;

 FIG. 5 is a schematic flowchart of a method for configuring measurement information according to an embodiment of the present invention; FIG.

 FIG. 6 is a schematic flowchart of a method for performing the above method according to an embodiment of the present invention.

detailed description

 In the embodiment of the present invention, the network side configures, for the user equipment, a measurement information set determined according to a transmission point on the carrier that is required to be measured by the user equipment, where the measurement information set includes measurement information of the at least one transmission point. Since the network side configures the transmission point on the carrier, the user equipment can report the channel information of the multi-carrier multi-transmission point to meet the requirements of the CoMP transmission.

 In the embodiment of the present invention, the user equipment performs CSI measurement according to the received measurement information of the transmission point in the measurement information set from the network side, and extracts the obtained measurement information. The user equipment can report the channel information of the multi-carrier and multiple transmission points according to the configuration on the network side, thereby satisfying the requirement of the CoMP transmission.

 The measurement information of the transmission point is information for measuring the downlink reference signal of the transmission point channel, that is, the measurement information set refers to a set of information for measuring the downlink reference signal of the corresponding transmission point channel. Typically, the downlink reference signal may be a non-zero power CSI-RS, a perturbation measurement reference resource, or a zero-power CSI-RS o.

 The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

 In the following description, the implementation of the cooperation between the network side and the user equipment side will be described first. Finally, the implementations from the network side and the user equipment side will be described separately, but this does not mean that the two must be implemented together. In fact, When the network side is implemented separately from the user equipment side, the problems existing on the network side and the user equipment side are also solved, but when the two are combined, a better technical effect is obtained.

 As shown in FIG. 2, the system for reporting in the embodiment of the present invention includes: a network side device 20 and a user equipment 21. The network side device 20 is configured to determine, according to a transmission point on the carrier that is measured by the user equipment, a measurement information set, where the measurement information set includes measurement information of the at least one transmission point, and configures the determined measurement information set for the user equipment;

The user equipment 21 is configured to perform channel state information (CSI) measurement according to the measurement information of the transmission point in the received measurement information set, and report the obtained measurement information to the network side device 20. There are many ways for the network side device 20 to determine the measurement information set, and several are listed below.

 Determining the measurement information collection mode 1. The network side device 20 jointly indicates that only one measurement information set needs to be determined. Preferably, the network side device 20 composes measurement information of all transmission points that need to be measured into a measurement information set, that is, jointly, measurement information indicating all transmission points that need to be measured, wherein the measurement information of each transmission point further includes the transmission information. The carrier information corresponding to the point (such as the carrier index) is sent to the user equipment 21 through the high layer signaling.

 Correspondingly, the user equipment 21 receives a measurement information set consisting of measurement information of all transmission points that need to be measured. When it is determined that periodic CSI reporting is required, the CSI measurement is performed according to the measurement information of all transmission points in the measurement information set.

 Determining the measurement information collection mode 2. The network side device 20 independently indicates that it is necessary to separately determine a measurement information set for each carrier that needs to be measured.

 Preferably, the network side device 20 configures a corresponding measurement information set for each carrier to be measured, wherein the measurement information set corresponding to the carrier is composed of measurement information of the transmission point to be measured on the carrier. That is to say, for each carrier that needs to be measured, one measurement information set is included, and the measurement information set includes measurement information of the transmission point on the carrier corresponding to the measurement information set, and each carrier is correspondingly corresponding to the high-level signaling. The measurement information set is sent to the user equipment 21, that is, the network side device 20 needs to send the measurement information set corresponding to each carrier to the user equipment 21.

 Correspondingly, the user equipment 21 receives the plurality of measurement information sets. When it is determined that the periodic CSI reporting is required, the CSI measurement is performed by using the measurement information of the transmission points in the measurement information set corresponding to each carrier to be measured.

 In order to enable the user equipment 21 to perform aperiodic CSI reporting, the network side device 20 may also notify the user equipment of the measurement object when the aperiodic CSI is reported. There are three notification methods.

 The notification mode is as follows: When the user equipment is required to perform the aperiodic CSI reporting, the network side device 20 selects some or all carriers from all the carriers to be measured to form one or more carrier sets, and notifies the user equipment 21 through high layer signaling, and triggers At least one carrier set is selected as the measurement object for performing the aperiodic CSI reporting to the user equipment 21 during the aperiodic reporting.

 For example, there are two carriers, A and B. If all carriers are selected, three carrier sets can be formed, that is, carrier A in group 1, carrier 8 in group 2, carrier A and B in group 3; After notifying the user equipment 21, it is assumed that the set 2 is notified by the aperiodic CSI triggering instruction, indicating that the measurement object of the acyclic CSI is the carrier B.

 Correspondingly, after receiving the indication information for triggering the aperiodic CSI report from the network side, the user equipment 21 receives the received information from the network according to the received indication information from the network side device 20 that triggers the aperiodic CSI. The at least one carrier set is determined from the plurality of carrier sets of the side device 20, and the aperiodic CSI measurement is performed on the carriers in the determined carrier set according to the measurement information of the transmission points in the received measurement information set.

Specifically, if the user equipment 21 receives a measurement information set, due to the measurement information of each transmission point The carrier information corresponding to the transmission point is included, so the user equipment 21 may determine measurement information of the transmission point corresponding to the carrier in the carrier set, and perform aperiodic measurement;

 If the user equipment 21 receives multiple measurement information sets, since each carrier corresponds to the measurement information set, the user equipment 21 may perform aperiodic measurement according to the measurement information of the transmission point in the measurement information set corresponding to the carrier in the carrier set. .

 Notification mode 2: When the user equipment is required to perform the aperiodic CSI reporting, the network side device 20 selects the identifier corresponding to the measurement information of some or all of the transmission points from the measurement information of all the transmission points that need to be measured to form one or more first measurements. The object set notifies the user equipment 21 by the high layer signaling, and selects at least one first measurement object set as the measurement object for performing the aperiodic CSI reporting to the user equipment 21 when the aperiod is triggered.

 For example, there are two measurement information of A and B. If all the identifiers corresponding to the measurement information are selected, three carrier sets can be formed, that is, the identifier corresponding to the measurement information A in the set 1 and the identifier and the set corresponding to the measurement information B in the set 2 3, there is an identifier corresponding to the measurement information A and an identifier corresponding to the measurement information B; after the three sets are notified to the user equipment 21, it is assumed that the set 3 is notified by the aperiodic CSI triggering instruction, indicating that the aperiodic CSI is 4艮The measurement object is measurement information A and measurement information B.

 Correspondingly, after receiving the indication information for triggering the aperiodic CSI report from the network side, the user equipment 21 receives multiple indications from the network side according to the received indication information of the triggered aperiodic CSI report from the network side. The at least one first measurement object set is determined in the first measurement object set, and the measurement information of the corresponding transmission point is determined in the determined first measurement object set, and the aperiodic CSI measurement is performed.

 Since the measurement information set is composed of the measurement information of the transmission point to be measured, after notifying the user equipment 21 of the identifier corresponding to the measurement information that needs to be used in a non-period, the user equipment can determine the measurement information that is used aperiodically, and perform the aperiodic period. Measurement.

 Notification mode 3: When the user equipment 21 is required to perform the aperiodic CSI reporting, the network side device 20 selects measurement information of some or all transmission points from the measurement information of all transmission points that need to be measured to form one or more second measurement object sets. The user equipment 21 is notified by the high layer signaling, and at least one second measurement object set is selected as the measurement object notification for performing the aperiodic CSI reporting to the user equipment 21 when the aperiod is triggered.

 For example, there are two measurement information: Α and ,. If all measurement information is selected, three carrier sets can be formed, that is, measurement information A in set 1, measurement information B in set 2, measurement information A in measurement 3, and measurement information. After the three sets are notified to the user equipment 21, it is assumed that the measurement object A is reported by the aperiodic CSI triggering instruction, and the measurement object A and the measurement information B are reported.

Correspondingly, after receiving the indication information of the aperiodic CSI report from the network side device 20, the user equipment 21 receives the received information from the network side device 20 by triggering the aperiodic CSI report. The at least one measurement object set is determined in the plurality of second measurement object sets of the network side device 20, and the measurement information of the transmission point in the determined second measurement object set is performed, and the aperiodic CSI measurement is performed. Since the measurement object set directly received by the user equipment 21 is composed of the measurement information of the transmission point, after determining the measurement object set, the user equipment can perform the aperiodic CSI measurement directly according to the measurement information in the measurement object set.

 Preferably, the network side device 20 can also cause the user equipment 21 to perform measurements on some or some subframes. Specifically, the network side device 20 may determine the measurement subframe information according to the subframe in which the user equipment needs to perform CSI measurement, and notify the user equipment 21.

 For example, the network side device 20 determines the measurement information set mode. The network side device 20 determines the measurement subframe information corresponding to the measurement information set according to the measurement subframe used by the user equipment to perform CSI measurement on the measurement information set.

 For example, the network side device 20 uses the method 2 of determining the measurement information. The network side device 20 determines the measurement subframe information of each carrier corresponding measurement information set that needs to be measured according to the subframe in which the user equipment performs CSI measurement for each carrier corresponding to the measurement information set.

 If the measurement information collection mode 1 is used, since there is only one measurement information set, when the measurement sub-frame information is notified, the measurement information set corresponding to the measurement sub-frame information may not be told;

 If the measurement information set mode 2 is used, since there are multiple measurement information sets, when the measurement subframe information is notified, it is necessary to tell the measurement information set corresponding to the measurement subframe information.

 Preferably, the network side device 20 can place the measurement subframe information in the measurement information set. Since the measurement information set includes the measurement subframe information, there is actually a correspondence between the measurement point and the measurement subframe information that need to be measured. .

 For example, if the network side device 20 uses the determined measurement information set mode one, the measurement subframe information corresponds to all the transmission points that need to be measured, that is, the user equipment 21 needs to pass the measurement when measuring any transmission point. The subframe corresponding to the frame information is measured.

 For example, if the network side device 20 uses the determined measurement information set mode 2, the measurement subframe information corresponds to the transmission point in the associated measurement information set, that is, the user equipment 21 measures the transmission point in the measurement information set. If the measurement information set includes the measurement subframe information, the measurement is performed by using the subframe corresponding to the measurement subframe information, and if the user equipment 21 performs measurement on the transmission point in the measurement information set, and the measurement information set is included in the measurement information set. When the measurement subframe information is not included, it is not necessary to perform measurement by measuring the subframe corresponding to the subframe information.

 Correspondingly, the measurement subframe information received by the user equipment 21 performs CSI measurement on the measurement subframe corresponding to the measurement subframe information according to the measurement information of the transmission point in the measurement information set.

 Specifically, after the measurement subframe information received by the user equipment 21, the measurement information set corresponding to the received measurement subframe information is determined, and corresponding to the measurement subframe information according to the measurement information of the transmission point in the measurement information set. The CSI measurement is performed on the measurement subframe.

Preferably, if the measurement information set received by the user equipment 21 includes the measurement subframe information, the user equipment 21 may determine that the measurement subframe information corresponding to the measurement information set is the measurement subframe information included in the measurement information set. For example, when the user equipment 21 performs measurement on a transmission point in a measurement information set including measurement subframe information (including periodic measurement and aperiodic measurement), it is required to measure by using a subframe corresponding to the measurement subframe information, for example, measuring a transmission point. Channel information and/or interference information, etc.

 The network side device in the embodiment of the present invention may be a station (such as a macro base station, a home base station, etc.), a relay (RN) device, or other network side devices.

 Based on the same inventive concept, the embodiment of the present invention further provides a network side device, a user equipment, a method for configuring measurement information, and a method for reporting, because the principle of solving the problem is similar to the system for reporting, The implementation of these devices and methods can be seen in the implementation of the system, and the details are not repeated here.

 As shown in FIG. 3, the network side device for configuring measurement information in the embodiment of the present invention includes: an information determining module 300 and a configuration module 310.

 The information determining module 300 is configured to determine a measurement information set according to a transmission point on a carrier that is required by the user equipment, where the measurement information set includes measurement information of the at least one transmission point;

 The configuration module 310 is configured to configure the determined measurement information set for the user equipment.

 Preferably, the information determining module 300 combines measurement information of all transmission points that need to be measured into a measurement information set;

 Correspondingly, the configuration module 310 sends the measurement information set to the user equipment through high layer signaling.

 Preferably, the information determining module 300 configures a corresponding measurement information set for each carrier to be measured, wherein the measurement information set corresponding to the carrier is composed of measurement information of the transmission point to be measured on the carrier;

 Correspondingly, the configuration module 310 sends the measurement information set corresponding to each carrier to the user equipment by using the high layer signaling.

 Preferably, the information determining module 300, when the user equipment is required to perform the aperiodic CSI reporting, selects part or all of the carriers from all the carriers that need to be measured to form one or more carrier sets, and notifies the user equipment through high layer signaling, and triggers the non- Selecting at least one carrier set at a time of 4 周期 as a measurement object for performing 4艮 on the aperiodic CSI to notify the user equipment; or

 When the user equipment is required to perform the aperiodic CSI reporting, the identifier corresponding to the measurement information of some or all of the transmission points is selected from the measurement information of all the transmission points that need to be measured to form one or more first measurement object sets, and the user is notified by the high layer signaling. The device, and selecting at least one first measurement object set as the measurement object of the aperiodic CSI is notified to the user equipment when the aperiod is triggered; or

 When the user equipment is required to perform the aperiodic CSI reporting, the measurement information of some or all of the transmission points is selected from the measurement information of all the transmission points that need to be measured to form one or more second measurement object sets, and the user equipment is notified by the high layer signaling, and At least one second measurement object set is selected as the measurement object for performing the aperiodic CSI reporting to the user equipment when the aperiodic reporting is triggered.

Preferably, the information determining module 300 determines the measurement subframe information according to the subframe in which the user equipment needs to perform CSI measurement. And notify the user equipment of the measurement subframe information.

 As shown in FIG. 4, the user equipment that is reported in the embodiment of the present invention includes: a measurement module 400 and a reporting module 410. The measuring module 400 is configured to perform CSI measurement according to the received measurement information of the transmission point in the measurement information set from the network side;

 The upper 4艮 module 410 is used for measuring information obtained on the network side.

 Preferably, the measurement module 400 receives a measurement information set, where the measurement information set is composed of measurement information of all transmission points that need to be measured; or receives a plurality of measurement information sets, where each measurement information set corresponds to one measurement that needs to be measured. Carrier, each measurement information set is composed of measurement information of a transmission point that needs to be measured on a corresponding carrier to be measured.

 Preferably, the measurement module 400 determines that a periodic CSI report is required, and receives a measurement information set, and performs CSI measurement according to measurement information of all transmission points in the measurement information set; when it is determined that periodic CSI reporting is required, and A plurality of measurement information sets are received, and CSI measurement is performed by measurement information of transmission points in the measurement information set corresponding to each carrier to be measured.

 Preferably, the measurement module 400 determines at least one carrier set from the received multiple carrier sets from the network side according to the received indication information of the triggering aperiodic CSI reporting from the network side, where the carrier set is the network side A part or all of the selected carriers of all the carriers to be measured; performing aperiodic CSI measurement on the carriers in the determined carrier set according to the measurement information of the transmission points in the received measurement information set.

 Preferably, the measurement module 400 determines at least one first measurement object set from the received plurality of first measurement object sets from the network side according to the received indication information of the triggering aperiodic CSI reporting from the network side, where The first measurement object set is that the network side selects part or all of the identifiers corresponding to the measurement information of all the transmission points that need to be measured; and according to the determined measurement information of the corresponding transmission point in the first measurement object set, Periodic CSI measurement.

 Preferably, the measurement module 400 determines at least one second measurement object set from the received plurality of measurement object sets from the network side according to the received indication information of the triggered aperiodic CSI reporting from the network side, where the second The measurement object set is formed by the network side selecting measurement information of some or all of the transmission points from the measurement information of all transmission points that need to be measured; performing aperiodic CSI according to the determined measurement information of the transmission point in the second measurement object set. measuring.

 Preferably, the measurement module 400 receives the measurement subframe information from the network side, and performs CSI measurement on the measurement subframe corresponding to the measurement subframe information according to the measurement information of the transmission point in the measurement information set.

 As shown in FIG. 5, the method for configuring measurement information in the embodiment of the present invention includes the following steps:

 Step 501: The network side determines a measurement information set according to a transmission point on a carrier that is required to be measured by the user equipment, where the measurement information set includes measurement information of the at least one transmission point.

Step 502: The network side configures the determined measurement information set for the user equipment. Among them, there are many ways for the network side to determine the measurement information set, and several are listed below.

 Determining the measurement information collection mode 1. The network side joint indication only needs to determine a measurement information set.

 Preferably, in step 501, the network side combines the measurement information of all the transmission points that need to be measured into a measurement information set, that is, jointly, the measurement information indicating all the transmission points that need to be measured, wherein the measurement information of each transmission point further includes Carrier information corresponding to the transmission point (such as a carrier index).

 Correspondingly, in step 502, the network side sends the measurement information set to the user equipment by using the high layer signaling.

 Determining the measurement information collection mode 2. The network side independent indication needs to determine a measurement information set for each carrier that needs to be measured.

 Preferably, in step 501, the network side configures a corresponding measurement information set for each carrier to be measured, where the measurement information set corresponding to the carrier is composed of measurement information of the transmission point to be measured on the carrier. That is to say, for each carrier that needs to be measured, one measurement information set is included, and the measurement information set includes measurement information of the transmission point on the carrier corresponding to the measurement information set.

 Correspondingly, the network side sends the measurement information set corresponding to each carrier to the user equipment by using the high-level signaling, that is, the network side needs to send the measurement information set corresponding to each carrier to the user equipment.

 Since the network side notifies the user equipment of the measurement information set (because the measurement information set has been notified to the user equipment, only the measurement object needs to be notified, the user equipment can perform measurement), and the user equipment can perform periodic CSI according to the measurement information set. Measure and upper 4 艮.

 In order to enable the user equipment to perform aperiodic CSI reporting, preferably, the network side may also notify the user of the measurement object when the device is not on the periodic CSI. There are three notification methods.

 Notification mode 1. When the network side requires the user equipment to perform the aperiodic CSI reporting, select some or all of the carriers from all the carriers to be measured to form one or more carrier sets to notify the user equipment through high-level signaling, and trigger the aperiodic reporting. At least one carrier set is selected as the measurement object for performing the aperiodic CSI reporting to notify the user equipment.

 For example, there are two carriers, Α and ,. If all carriers are selected, three carrier sets can be formed, that is, carrier A in group 1, carrier 8 in group 2, carrier A and B in group 3; After notifying the user equipment, it is assumed that the set 2 is notified by the aperiodic CSI trigger instruction, indicating that the measurement object of the acyclic CSI is the carrier.

 If the network side determines the measurement information set mode 1, the measurement information of each transmission point includes the carrier information corresponding to the transmission point, so after notifying the user equipment of the carrier that needs to be measured in a non-period, the user equipment can determine that the carrier corresponds to the carrier. Measurement information of the transmission point, for non-periodic measurement;

If the network side uses the determined measurement information set mode 2, since each carrier corresponds to the measurement information set, after notifying the user equipment of the carrier that needs to be measured in a non-period, the user equipment may perform measurement according to the transmission point in the measurement information set corresponding to the carrier. Information, making aperiodic measurements. Notification mode 2: When the network side requires the user equipment to perform the aperiodic CSI reporting, the identifier corresponding to the measurement information of some or all of the transmission points is selected from the measurement information of all the transmission points to be measured to form one or more first measurement object sets. The user equipment is notified by the high-level signaling, and at least one first measurement object set is selected as the measurement object for performing the aperiodic CSI reporting to the user equipment when the aperiod is triggered.

 For example, there are two measurement information of A and B. If all the identifiers corresponding to the measurement information are selected, three carrier sets can be formed, that is, the identifier corresponding to the measurement information A in the set 1 and the identifier and the set corresponding to the measurement information B in the set 2 In the 3, there is an identifier corresponding to the measurement information A and an identifier corresponding to the measurement information B. After the three sets are notified to the user equipment, it is assumed that the set 3 is notified by the aperiodic CSI triggering instruction, indicating that the measurement is performed on the aperiodic CSI. The object is measurement information A and measurement information B.

 Regardless of whether the network side determines the measurement information set mode one or the second mode, since the measurement information set is composed of the measurement information of the transmission point to be measured, the user is notified to the user equipment that the measurement information corresponding to the non-period needs to be used, and the user The device can determine the measurement information for aperiodic use and perform aperiodic measurements.

 Notification mode 3: When the network side needs the user equipment to perform the aperiodic CSI reporting, the measurement information of some or all of the transmission points is selected from the measurement information of all the transmission points that need to be measured to form one or more second measurement object sets through the high-level letter. The user equipment is notified, and at least one second measurement object set is selected as the measurement object for performing the aperiodic CSI reporting to the user equipment when the aperiodic report is triggered.

 For example, there are two measurement information of A and B. If all measurement information is selected, three carrier sets can be formed, that is, measurement information A in set 1, measurement information B in set 2, measurement information A in measurement 3, and measurement information. After the three sets are notified to the user equipment, it is assumed that the measurement object A is reported by the aperiodic CSI triggering instruction, and the measurement object A and the measurement information B are reported.

 Regardless of whether the network side determines the measurement information set mode 1 or mode 2, the network side directly reports the measurement information of the transmission point to the user equipment, so after determining the measurement object set, the user equipment can directly measure the measurement information in the measurement object set. Perform aperiodic CSI measurements.

 Preferably, the network side can also allow the user equipment to perform measurements on some or some subframes. Specifically, in step 501, the network side may determine the measurement subframe information according to the subframe in which the user equipment needs to perform CSI measurement, and notify the user equipment.

 For example, the network side determines the measurement information collection mode. The network side determines the measurement subframe information corresponding to the measurement information set according to the measurement subframe used by the user equipment to perform CSI measurement on the measurement information set.

 For example, the network side determines the measurement information set mode 2, and the network side performs the CSI measurement subframe for each carrier corresponding measurement information set that needs to be measured according to the requirement, and determines the measurement component of each carrier corresponding to the measurement information set that needs to be measured. Frame information.

If the measurement information set mode 1 is used, since there is only one measurement information set, when the measurement subframe information is notified, the measurement information set corresponding to the measurement subframe information may not be told; If the measurement information set mode 2 is used, since there are multiple measurement information sets, when the measurement subframe information is notified, it is necessary to tell the measurement information set corresponding to the measurement subframe information.

 Preferably, the network side can place the measurement subframe information in the measurement information set. Since the measurement information set includes the measurement subframe information, there is actually a correspondence between the measurement point and the measurement subframe information that need to be measured.

 For example, if the network side uses the method 1 for determining measurement information, the measurement subframe information corresponds to all transmission points that need to be measured, that is, when the user equipment performs measurement on any transmission point, it needs to correspond to the measurement subframe information. The sub-frame is measured.

 For example, if the network side uses the determined measurement information set mode 2, the measurement subframe information corresponds to the transmission point in the associated measurement information set, that is, the user equipment measures the transmission point in the measurement information set, and the When the measurement information set includes the measurement subframe information, the measurement is performed by using the subframe corresponding to the measurement subframe information, and if the user equipment measures the transmission point in the measurement information set, the measurement information set does not include the measurement element. In the case of frame information, it is not necessary to perform measurement by measuring a subframe corresponding to the subframe information.

 As shown in FIG. 6, the method for reporting in the embodiment of the present invention includes the following steps:

 Step 601: The user equipment performs CSI measurement according to the received measurement information of the transmission point in the measurement information set of the network side.

 Step 602: The measurement information obtained by the user equipment on the network side.

 Preferably, in step 601, the user equipment may receive a measurement information set or a plurality of measurement information sets.

 If the user equipment receives a measurement information set, the measurement information set is composed of measurement information of all transmission points that need to be measured;

 If the user equipment receives multiple measurement information sets, each measurement information set corresponds to a carrier wave to be measured, and each measurement information set is composed of measurement information of a transmission point that needs to be measured on a corresponding carrier to be measured.

 Preferably, if the user equipment receives a measurement information set, in step 601, the user equipment performs CSI measurement according to measurement information of all transmission points in the measurement information set when it is determined that periodic CSI reporting is required;

 If the user equipment receives multiple measurement information sets, in step 601, the user equipment determines that a period needs to be performed.

When the CSI is reported, the CSI measurement is performed by the measurement information of the transmission point in the measurement information set corresponding to each carrier to be measured.

 In the implementation, the user equipment may also perform aperiodic CSI reporting, and there are three ways.

 Aperiodic CSI reporting method 1:

In step 601, the user equipment may also receive multiple carrier sets from the network side, where the carrier set is composed of a part or all carriers selected by the network side from all carriers that need to be measured; preferably, the user equipment receives After receiving the indication information of the aperiodic CSI report from the network side, determining, according to the received indication information of the triggered aperiodic CSI from the network side, determining at least one carrier set from the received multiple carrier sets from the network side, And according to The measurement information of the transmission point in the received measurement information set, performing aperiodic on the carrier in the determined carrier set

CSI measurement.

 Specifically, if the user equipment receives a measurement information set, the measurement information of each transmission point includes carrier information corresponding to the transmission point, so the user equipment may determine measurement information of the transmission point corresponding to the carrier in the carrier set, and perform Aperiodic measurement;

 If the user equipment receives the measurement information set, the user equipment may perform the aperiodic measurement according to the measurement information of the transmission point in the measurement information set corresponding to the carrier in the carrier set.

 Acyclic CSI reporting method 2:

 In step 601, the user equipment may also receive a plurality of first measurement object sets from the network side, where the first measurement object set is that the network side selects part or all of the identifiers corresponding to the measurement information of all the transmission points that need to be measured. Preferably, after receiving the indication information for triggering the aperiodic CSI report from the network side, the user equipment receives the indication information from the network side that triggers the aperiodic CSI report, and receives the received information from the network side. Determining at least one first measurement object set in the plurality of first measurement object sets, and determining the measurement information of the corresponding transmission point in the determined first measurement object set, performing aperiodic CSI measurement.

 Since the measurement information set is composed of the measurement information of the transmission point to be measured, after notifying the user equipment of the identifier corresponding to the measurement information that needs to be used in the non-period, the user equipment can determine the measurement information used in the non-period, and perform the aperiodic measuring.

 Acyclic CSI reporting method 3:

 In step 601, the user equipment may also receive a second measurement object set from the network side, where the second measurement object set is that the network side selects measurement information of part or all of the transmission points from measurement information of all transmission points that need to be measured. Preferably, after receiving the indication information from the network side that triggers the aperiodic CSI reporting, the user equipment receives the indication information from the network side that triggers the aperiodic CSI reporting, and receives the received information from the network side. The at least one measurement object set is determined from the plurality of second measurement object sets, and the aperiodic CSI measurement is performed according to the determined measurement information of the transmission point in the second measurement object set.

 Since the measurement object set directly received by the user equipment is composed of the measurement information of the transmission point, after determining the measurement object set, the user equipment can perform the aperiodic CSI measurement directly according to the measurement information in the measurement object set.

 Preferably, in step 601, if the measurement subframe information received by the user equipment is used, the measurement information of the transmission point in the measurement information set is subjected to CSI measurement on the measurement subframe corresponding to the measurement subframe information.

 Specifically, after the measurement subframe information received by the user equipment, the measurement information set corresponding to the received measurement subframe information is determined, and corresponding to the measurement subframe information according to the measurement information of the transmission point in the measurement information set. The CSI measurement is performed on the measurement subframe.

Preferably, if the measurement information set received by the user equipment includes measurement subframe information, the user equipment may determine The measurement subframe information corresponding to the measurement information set includes measurement subframe information in the measurement information set.

 For example, when the user equipment performs measurement on the transmission point in the measurement information set including the measurement subframe information (including periodic measurement and aperiodic measurement), it is required to measure by using the subframe corresponding to the measurement subframe information, for example, measuring the transmission point. Channel information and/or interference information, etc.

 In FIG. 5 and FIG. 6, a process may be synthesized to form another method for reporting, that is, step 501 and step 502 are performed first, and then step 601 and step 602 are performed.

 The scheme of the present invention will be described below by way of two examples.

 Scenario 1: Assume that the current UE is configured with two downlink carriers, and each downlink carrier needs to measure CSI-RS corresponding to two transmission points, and the base station can jointly indicate the configuration of all four CSI-RSs through high layer signaling (ie, four Each of the CSI-RS configurations includes a carrier index in which the CSI-RS is located. At the same time, the base station additionally notifies two subsets of the measurement information set by the high layer signaling, for example, the subset 1 is a measurement information set of the primary carrier, and the subset 2 is a measurement information set composed of all four configurations.

 After receiving the measurement information set, the UE periodically feeds back the reference signal included in the measurement information set through a physical uplink control channel (PUCCH). If the UE receives the triggering instruction of the aperiodic CSI feedback, and instructs the UE to feed back the CSI of the measurement subset 1, the UE feeds back the channel information measured by the reference signal corresponding to the measurement transmission point on the primary carrier through the physical uplink shared channel (PUSCH). . If the base station further indicates the measurement subframe information corresponding to the measurement information set, the UE needs to perform measurement of the measurement information set on the subframe corresponding to the measurement subframe information.

 Solution 2: It is assumed that the current UE has four downlink carriers, and the carriers 1 and 2 respectively include two transmission points, and the carriers 3 and 4 respectively include three transmission points, and the base station respectively indicates the measurement information of each of the four carriers through the high layer signaling. set. At the same time, the base station additionally informs the UE of two carrier sets through higher layer signaling, for example, carrier set 1 is carriers 1 and 2, and carrier set 2 is carriers 3 and 4.

 After receiving the measurement information set of each carrier, the UE periodically performs periodic feedback on the reference signal included in the measurement information set on each carrier through the PUCCH. If the UE passes downlink control signaling (Downlink Control)

Indicator, DCI) receiving the triggering instruction of the aperiodic CSI feedback, and instructing the UE to feed back the CSI of the carrier set 1, the UE respectively feeds back the channel information on the carriers 1 and 2 through the PUSCH, and needs to feed back 4 different reference signal information for measurement. Channel information. If the base station further indicates measurement subframe information of each carrier or carrier set, the UE needs to perform measurement of carrier 1 and carrier 2 on the subframe corresponding to the measurement subframe information corresponding to carrier 1 and carrier 2.

 In the embodiment of the present invention, the network side configures the transmission point on the carrier, so that the user equipment can report the channel information of the multi-carrier multi-transmission point to meet the requirement of the CoMP transmission;

 And the user equipment can report the channel information of the multi-carrier multi-transmission point according to the configuration on the network side, thereby satisfying the requirement of the CoMP transmission.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Thus, the present invention can be implemented in terms of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. The form of the case. Moreover, the present invention is in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) in which computer usable program code is embodied.

 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 process 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. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

 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.

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

Claims

Rights request

 A method for configuring measurement information, the method comprising:

 The network side determines a measurement information set according to a transmission point on the carrier that is required to be measured by the user equipment, where the measurement information set includes measurement information of the at least one transmission point;

 The network side configures the determined measurement information set for the user equipment.

 2. The method according to claim 1, wherein the determining, by the network side, the measurement information set comprises: the network side forming measurement information of all transmission points that need to be measured into a measurement information set;

 The measurement information set determined by the network side for the user equipment configuration includes:

 The network side sends the measurement information set to the user equipment by using high layer signaling.

 The method according to claim 1, wherein the determining, by the network side, the measurement information set comprises: the network side respectively configuring, for each carrier that needs to be measured, a measurement information set corresponding to the carrier, where the measurement information corresponding to the carrier The set consists of measurement information of the transmission points on the carrier that need to be measured;

 The measurement information set determined by the network side for the user equipment configuration includes:

 The network side separately sends the measurement information set corresponding to each carrier to the user equipment by using the high layer signaling.

The method according to any one of claims 1 to 3, wherein the determining, by the network side, the measurement information set further comprises:

 When the network side needs to report the aperiodic channel state information CSI, the network side selects part or all of the carriers from all the carriers to be measured to form one or more carrier sets, and notifies the user equipment through high layer signaling, and triggers the aperiodic At the time of reporting, at least one carrier set is selected as a measurement object for performing aperiodic CSI reporting to the user equipment; or

 When the network side needs to perform the aperiodic CSI reporting, the network side selects the identifier corresponding to the measurement information of some or all of the transmission points from the measurement information of all the transmission points that need to be measured to form one or more first measurement object sets through the upper layer. Notifying the user equipment, and selecting at least one first measurement object set to notify the user equipment of the measurement object of the aperiodic CSI when the aperiod is triggered; or

 When the network side requires the user equipment to perform the aperiodic CSI reporting, the measurement information of some or all of the transmission points is selected from the measurement information of all the transmission points that need to be measured, and one or more second measurement object sets are notified by the high layer signaling. And the user equipment, and selecting at least one second measurement object set as the measurement object for performing the aperiodic CSI reporting, is notified to the user equipment when the aperiod is triggered.

 The method according to any one of claims 1 to 3, wherein the determining, by the network side, the measurement information set further comprises:

 The network side determines the measurement subframe information according to the subframe in which the user equipment needs to perform CSI measurement, and notifies the user equipment of the measurement subframe information.

6. A method for reporting, characterized in that the method comprises: The user equipment performs CSI measurement according to the received measurement information of the transmission point in the measurement information set from the network side;

 The user equipment reports the obtained measurement information to the network side.

 The method of claim 6, wherein the user equipment before the CSI measurement further comprises: the user equipment receiving a measurement information set, wherein the measurement information set is determined by all transmission points that need to be measured. Composition of measurement information; or

 The user equipment receives a plurality of measurement information sets, where each measurement information set corresponds to a carrier that needs to be measured, and each measurement information set is composed of measurement information of a transmission point that needs to be measured on a corresponding carrier to be measured.

 The method of claim 7, wherein the performing CSI measurement by the user equipment comprises: when the user equipment determines that periodic CSI reporting is required, and receives a measurement information set, according to the measurement information set. Measurement information of all transmission points for CSI measurement;

 The user equipment determines that a periodic CSI report is required, and receives a plurality of measurement information sets, and performs CSI measurement by using measurement information of the transmission points in the measurement information set corresponding to each carrier to be measured.

 The method according to any one of claims 6 to 8, wherein after the user equipment receives the measurement information set, before the reporting, the method further includes:

 The user equipment determines at least one carrier set from the received multiple carrier sets from the network side according to the received indication information of the triggered aperiodic CSI reporting from the network side, where the carrier set is measured by the network side from the network side. Composed of some or all of the selected carriers;

 The CSI measurement performed by the user equipment includes:

 The user equipment performs aperiodic CSI measurement on the carriers in the determined carrier set according to the measurement information of the transmission point in the received measurement information set.

 The method according to any one of claims 6 to 8, wherein after the user equipment receives the measurement information set, the user equipment further includes:

 Determining, by the user equipment, at least one first measurement object set from the received plurality of first measurement object sets from the network side according to the received indication information of the triggered aperiodic CSI report from the network side, where the first measurement The object set is composed of a part or all of the identifiers corresponding to the measurement information of all the transmission points that need to be measured by the network side;

 The CSI measurement performed by the user equipment includes:

 The user equipment performs aperiodic CSI measurement according to the determined measurement information of the corresponding transmission point in the determined first measurement object set.

 The method according to any one of claims 6 to 8, wherein after the user equipment receives the measurement information set, before the reporting, the method further includes:

The user equipment receives the indication information from the network side that triggers the aperiodic CSI reporting, and receives the indication information. Determining at least one second measurement object set from the plurality of measurement object sets on the network side, wherein the second measurement object set is formed by the network side selecting measurement information of part or all of the transmission points from measurement information of all transmission points that need to be measured. ;

 The CSI measurement performed by the user equipment includes:

 The user equipment performs aperiodic according to the determined measurement information of the transmission point in the second measurement object set.

CSI measurement.

 The method according to any one of claims 6 to 8, wherein before the user equipment performs CSI measurement, the method further includes:

 Receiving, by the user equipment, measurement subframe information from a network side;

 The CSI measurement performed by the user equipment includes:

 The user equipment performs CSI measurement on the measurement subframe corresponding to the measurement subframe information according to the measurement information of the transmission point in the measurement information set.

 A network side device configured to measure information, where the network side device includes:

 An information determining module, configured to determine a measurement information set according to a transmission point on a carrier that is required by the user equipment, where the measurement information set includes measurement information of the at least one transmission point;

 The configuration module is configured to configure the determined measurement information set for the user equipment.

 The device according to claim 13, wherein the information determining module is specifically configured to: combine measurement information of all transmission points that need to be measured into a measurement information set;

 The configuration module is specifically configured to:

 The measurement information set is sent to the user equipment through high layer signaling.

 The device according to claim 13, wherein the information determining module is configured to: configure a corresponding measurement information set for each carrier that needs to be measured, where the measurement information set corresponding to the carrier is on the carrier The measurement information of the transmission point to be measured is composed;

 The configuration module is specifically configured to:

 The measurement information set corresponding to each carrier is sent to the user equipment by using the high layer signaling.

 The device according to any one of claims 13 to 15, wherein the configuration module is further configured to: select some or all carriers from all carriers that need to be measured when the user equipment is required to perform aperiodic CSI reporting. And arranging the one or more carrier sets to notify the user equipment by using the high layer signaling, and selecting at least one carrier set as the measurement object for performing the aperiodic CSI reporting to notify the user equipment when the aperiod is triggered; or

When the user equipment is required to perform the aperiodic CSI reporting, the identifier corresponding to the measurement information of some or all of the transmission points is selected from the measurement information of all the transmission points that need to be measured to form one or more first measurement object sets, and the user is notified by the high layer signaling. The device, and selecting at least one first measurement object set as the measurement object of the aperiodic CSI is notified to the user equipment when the aperiod is triggered; or When the user equipment is required to perform the aperiodic CSI reporting, the measurement information of some or all of the transmission points is selected from the measurement information of all the transmission points that need to be measured to form one or more second measurement object sets, and the user equipment is notified by the high layer signaling, and At least one second measurement object set is selected as the measurement object for performing the aperiodic CSI reporting to the user equipment when the aperiodic reporting is triggered.

 The device according to any one of claims 13 to 15, wherein the configuration module is further configured to: determine, according to a subframe in which the user equipment performs CSI measurement, determine measurement subframe information, and use the measurement subframe The information informs the user device.

 18. A user equipment for reporting, wherein the user equipment comprises:

 a measuring module, configured to perform CSI measurement according to the received measurement information of the transmission point in the measurement information set from the network side;

 The reporting module is configured to report the obtained measurement information to the network side.

 The device of claim 18, wherein the measuring module is further configured to:

 Receiving a set of measurement information, wherein the set of measurement information consists of measurement information of all transmission points that need to be measured; or

 A plurality of measurement information sets are received, wherein each measurement information set corresponds to one carrier to be measured, and each measurement information set is composed of measurement information of a transmission point to be measured on a corresponding carrier to be measured.

 The device according to claim 19, wherein the measuring module is specifically configured to:

 When it is determined that periodic CSI reporting is required, and a measurement information set is received, CSI measurement is performed according to measurement information of all transmission points in the measurement information set; or

 When it is determined that periodic CSI reporting is required, and multiple measurement information sets are received, the CSI measurement is performed by the measurement information of the transmission points in the measurement information set corresponding to each carrier to be measured.

 The device according to any one of claims 18 to 20, wherein the measuring module is further configured to: receive the received network from the network according to the received indication information of the triggered aperiodic CSI report from the network side. Determining at least one carrier set in the plurality of carrier sets on the side, where the carrier set is composed of a part or all carriers selected by the network side from all carriers that need to be measured; according to the measurement information of the transmission point in the received measurement information set, Aperiodic CSI measurements are made on the carriers in the determined set of carriers.

 The device according to any one of claims 18 to 20, wherein the measuring module is further configured to: receive the received network from the network according to the received indication information of the triggered aperiodic CSI report from the network side. Determining at least one first measurement object set in the plurality of first measurement object sets, wherein the first measurement object set is formed by selecting, by the network side, part or all of the identifiers corresponding to the measurement information of all transmission points that need to be measured; Aperiodic CSI measurement is performed according to the determined measurement information of the corresponding transmission point in the determined first measurement object set.

The device according to any one of claims 18 to 20, wherein the measuring module is further configured to: receive the received network from the network according to the received indication information of the triggered aperiodic CSI report from the network side. More on the side Determining at least one second set of measurement objects in the set of measurement objects, wherein the second set of measurement objects is formed by the network side selecting measurement information of some or all of the transmission points from measurement information of all transmission points that need to be measured; The measurement information of the transmission point in the measurement object set is measured, and the aperiodic CSI measurement is performed.

 The device according to any one of claims 18 to 20, wherein the measuring module is further configured to: receive measurement subframe information from the network side, according to measurement information of the transmission point in the measurement information set, The CSI measurement is performed on the measurement subframe corresponding to the measurement subframe information.

 25. A system for reporting, characterized in that the system comprises:

 a network side device, configured to determine a measurement information set according to a transmission point on a carrier that is required by the user equipment, where the measurement information set includes measurement information of the at least one transmission point, and the determined measurement information set is configured for the user equipment; The CSI measurement is performed according to the measurement information of the transmission point in the received measurement information set, and the obtained measurement information is reported to the network side device.