WO2012031565A1 - 一种测量干扰的方法、系统和设备 - Google Patents

一种测量干扰的方法、系统和设备 Download PDF

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Publication number
WO2012031565A1
WO2012031565A1 PCT/CN2011/079518 CN2011079518W WO2012031565A1 WO 2012031565 A1 WO2012031565 A1 WO 2012031565A1 CN 2011079518 W CN2011079518 W CN 2011079518W WO 2012031565 A1 WO2012031565 A1 WO 2012031565A1
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Prior art keywords
group
information
interference
configuration information
network side
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PCT/CN2011/079518
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English (en)
French (fr)
Inventor
高秋彬
苏昕
Original Assignee
电信科学技术研究院
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=45810134&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2012031565(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Priority to KR1020127031501A priority Critical patent/KR101487375B1/ko
Priority to US13/700,983 priority patent/US9125071B2/en
Priority to EP11823088.7A priority patent/EP2566219B1/en
Publication of WO2012031565A1 publication Critical patent/WO2012031565A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/345Interference values

Definitions

  • Each cell in a wireless cellular network system typically has one base station in communication with the user terminal.
  • the base station transmits a reference signal (i.e., a pilot signal) to the user terminal, and the user terminal obtains a channel estimation value based on the reference signals.
  • the reference signal is a known sequence of signals that are transmitted at a specific frequency, at a specific time. Factors such as interference and noise can affect the quality of the channel estimate.
  • the data format sent to the user terminal preferably matches the channel conditions of the user terminal.
  • the technique that matches the data format sent to the user terminal to its channel conditions is called link adaptation.
  • the user terminal needs to report channel quality indication information (CQI) according to its channel condition.
  • CQI channel quality indication information
  • the CQI reported by the user terminal corresponds to a certain time-frequency resource, that is, the CQI reported by the user terminal indicates the transmission capability on the time-frequency resources.
  • the calculation of CQI requires the user terminal to measure the interference and noise of the neighboring cells it receives, including interference I and noise power N0.
  • ITU International Telecommunication Union
  • Multipoint coordinated transmission technology is the collaboration between multiple transmission points separated geographically. In general, multiple transmission points are base stations of different cells. Multi-point coordinated transmission technology is divided into downlink coordinated transmission and uplink joint reception. Downlink multipoint coordinated transmission technology solutions are mainly divided into two categories: joint scheduling and joint transmission.
  • Joint scheduling is to allocate mutually orthogonal resources to different UEs (terminals) by coordinating time, frequency and space resources between cells to avoid mutual interference.
  • the interference of the small interval is the main factor that restricts the performance of the UE at the cell edge. Therefore, joint scheduling can reduce the interference between cells, thereby improving the performance of the cell edge UE.
  • FIG. 1A through the joint scheduling of three cells, three UEs that may interfere with each other are scheduled to mutually orthogonal resources, thereby effectively avoiding interference between cells.
  • the joint scheduling scheme Different from the joint scheduling scheme, only one cell sends data to the UE.
  • multiple cells simultaneously send data to the UE to enhance the UE receiving signals.
  • three cells transmit data to one UE on the same resource, and the UE simultaneously receives signals of multiple cells.
  • the superposition of useful signals from multiple cells can improve the signal quality received by the UE, and on the other hand, reduce the interference experienced by the UE, thereby improving system performance.
  • the terminal needs to estimate the channel state information of the coordinated cell base station to the terminal.
  • Channel state information estimation in LTE-A is done by measuring pilots.
  • FIG. 3 the relationship between pilot and data in a PRB (Physical Resource Block) is shown.
  • the first two OFDM (Orthogonal Frequency Division Multiplexing) symbols are used to control the transmission of information, starting from the third OFDM symbol.
  • the data area includes a pilot RE (Resource Element) and a data RE.
  • the pilots of neighboring cells are usually mapped to different REs.
  • the terminal in the cell 1 needs to obtain channel state information of the cell 2 and the cell 3, and needs to perform channel estimation on the RE corresponding to the measurement pilot of the cell 2 and the cell 3.
  • downlink data transmission such as PDSCH (Physical Downlink Shared Channel)
  • PDSCH Physical Downlink Shared Channel
  • the received signal strength of the cell 1 is usually much larger than the signal strength of the cell 2 and the cell 3, so that the signal-to-interference ratio (SINR) of the measurement pilots of the cell 2 and the cell 3 is very low. , Satisfactory channel estimation accuracy cannot be obtained.
  • cell 1 can vacate those REs that transmit measurement pilots in cell 2 and cell 3, that is, transmit a zero-power signal. This scheme is called RE MUTING, and the vacant RE is called a silent RE (MUTING). RE), see Figure 1D for details.
  • the terminal feedback CQI needs to estimate the interference it is subjected to.
  • the interference of the neighboring cell is no longer at the pilot position. Since the interference of neighboring cells is usually the strongest, the interference estimated at the pilot position is much lower than the actual interference.
  • the embodiment of the invention provides a method, a system and a device for measuring interference, which are used to solve the problem that the interference precision measured by the terminal is relatively low if the RE MUTING scheme is used in the prior art.
  • the network side device determines the configuration information of the first resource unit RE group that performs the interference measurement; the network side device generates the first interference notification information according to the configuration information of the first RE group, and sends the first interference notification to the terminal. And the information is used to instruct the terminal to determine the first RE group according to the first interference notification information, and perform interference measurement on the determined first RE group.
  • the terminal determines to perform the dry according to the received first interference notification information from the network side device.
  • the terminal performs interference measurement on the determined first RE group.
  • a configuration information determining module configured to determine configuration information of a first RE group that performs interference measurement
  • a generating module configured to generate first interference notification information according to configuration information of the first RE group
  • a sending module configured to send to the terminal
  • the first interference notification information is used to indicate that the terminal determines the first RE group according to the first interference notification information, and performs interference measurement on the determined first RE group.
  • a location determining module configured to determine, according to the received first interference notification information from the network side device, a location of the first RE group that performs interference measurement
  • a measuring module configured to perform interference measurement on the determined first RE group.
  • a network side device configured to determine configuration information of the first RE group that performs the interference measurement, generate first interference notification information according to the configuration information of the first RE group, and send the first interference notification information to the terminal;
  • the terminal is configured to determine, according to the received first interference notification information from the network side device, a location of the first RE group that performs interference measurement, and perform interference measurement on the determined first RE group.
  • the notification terminal performs interference measurement on the first RE group, the interference precision of the measurement is improved when the RE MUTING scheme is used;
  • the terminal determines the CQI by using the interference determined by the embodiment of the present invention, the accuracy of the CQI can be improved, thereby enabling the base station to better implement link adaptation, thereby improving the efficiency of data transmission.
  • 1A is a schematic diagram of joint scheduling in the background art
  • FIG. 1B is a schematic diagram of coordinated transmission in the background art
  • FIG. 1C is a schematic diagram of a mapping relationship of pilot domain data in the background art
  • Figure 1D is a schematic diagram of RE MITTING
  • FIG. 2 is a schematic structural diagram of a system for measuring interference according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a method for measuring interference according to an embodiment of the present invention.
  • FIG. 6 is a schematic flowchart of a second method for measuring interference according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of an application scenario according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of grouping according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a first pilot domain data mapping relationship according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a second pilot domain data mapping relationship according to an embodiment of the present invention.
  • FIG. 11 is a schematic flowchart of a method for performing interference by using a MUTING RE according to an embodiment of the present invention. detailed description
  • the network side device generates the first interference notification information according to the configuration information of the first RE group that performs the interference measurement, and sends the first interference notification information to the terminal.
  • the terminal determines, according to the first interference notification information, the interference measurement. The location of an RE group, and interference measurements on the determined first RE group. Since the notification terminal performs interference measurement on the first RE group, the interference accuracy of the measurement is improved when the RE MUTING scheme is used.
  • RE MUTING in the background art is only a name, and other schemes other than RE MUTING are also applicable to the embodiment of the present invention. That is to say, the first RE group in the embodiment of the present invention is a MUTING RE group, and may also be another RE group having the same function but the same function as the MUTING RE.
  • the system for measuring interference includes: a network side device 10 and a terminal
  • the network side device 10 is configured to determine configuration information of the first RE group that performs interference measurement, according to The determined configuration information of the first RE group generates first interference notification information, and sends the first trunk 4 notification information to the terminal 20.
  • the terminal 20 is configured to determine, according to the received first interference notification information from the network side device 10, a location of the first RE group that performs interference measurement, and perform interference measurement on the determined first RE group.
  • each subframe has multiple REs, and multiple REs can be selected from all REs and divided into multiple RE groups. For example, as shown in Figure 8, a total of 24 REs in two rows are divided into 6 groups, that is, a group marked with "0", a group labeled "1", and so on.
  • the specific grouping situation can be determined in the agreement or negotiated between the network side and the terminal side.
  • the divided multiple RE groups may be updated as needed, for example, the number of selected REs, the RE location, the number of divided RE groups, the location of the RE group, and the number of REs included in the RE group.
  • the location is updated.
  • the specifically updated packet situation may be determined in the protocol or negotiated between the network side and the terminal side.
  • the RE group here may or may not include the RE occupied by the measurement pilot of the serving cell.
  • the network side device 10 selects a plurality of groups that need to be silent (ie, a group consisting of MUTING REs in the background art) from the group of REs to form an RE group set, and select at least one group of REs from the RE group set.
  • the first RE group that is, the RE group set is composed of all silent RE groups.
  • the number of RE groups in the RE group set may be more than the number of RE groups occupied by the pilots of the coordinated transmission cell of the terminal. For example, only the REs of the first group and the second group may be needed, and the REs of the UE MUTING may be actually notified to be the first group and the second group, or the first, second, and third groups may be notified, so that an extra group of REs is used.
  • the help terminal 20 performs interference estimation.
  • the additional RE group may be used as the first RE group.
  • the cell 1 notifies the terminal RE group set to the ⁇ 1, 2, 3 ⁇ group (corresponding to the group number in FIG. 8), wherein the first group and the second group are for better estimation of the cell 2 and the cell 3
  • the channel (ie, the second RE group), and the third group of REs are for estimating interference (ie, the first RE group); the terminal is capable of detecting the interference generated by the PDSCH of the two adjacent cells on the third group of REs.
  • the terminal may be configured to estimate interference on a specific RE group according to the location of the terminal.
  • terminal 1 in Figure 7 is located at the edge of cells 1 and 2
  • terminal 3 is located at the center of cell 1
  • terminal 2 is located at the edge of cells 1 and 3.
  • the network side device notifies the terminal 2 to measure the interference on the first group RE, because the terminal 2 is located at the edge of the cell 1 and the cell 3, and the cell 1 and the cell 3 may participate in the joint transmission to the UE 2, and the signal of the cell 3 is not connected to the terminal 2 at this time.
  • the interference is further, and the signal of the cell 2 is negligible due to the serious attenuation, so that the terminal 2 can relatively accurately estimate the interference received during the joint transmission. If the terminal 2 only performs single-cell transmission, the signal of the cell 3 is still interfered with the terminal. At this time, the network-side device can configure the terminal 2 to measure interference on the second group RE, and the terminal 2 can still detect that the interference is large. Interference of cell 3.
  • the signals of terminal 3, cell 2 and cell 3 to UE3 located in the center of cell 1 are relatively weak, so the interference measured on the first group (or group 2) RE can accurately reflect that the terminal is transmitting in a single cell. The interference experienced, see Figure 10.
  • the network side device 10 determines the first RE group for performing interference measurement according to the location of the RE group set of the neighboring cell or according to the location or random selection of the terminal.
  • the configuration information of each first RE group can be determined.
  • the configuration information of the RE group includes but is not limited to one or more of the following information:
  • the pilot mode refers to the RE position occupied by the pilot transmitted by the cell in one subframe.
  • the network side device 10 to generate the first interference notification information according to the determined configuration information of the first RE group, and several types are listed below:
  • Method 1 The network side device 10 determines the measurement set information, and uses the determined measurement set information as the first interference notification information.
  • the second RE group is the RE group used for measuring the channel of the neighboring cell, and the cells corresponding to the different second RE groups are different, so the second RE may be used.
  • the configuration information corresponding to the group and the cell identifier of the corresponding cell are placed in the measurement set information; and the first RE group also has configuration information, but there is no corresponding cell, so the virtual small can be used.
  • the area identifier is used as the cell identifier corresponding to the first RE group.
  • LTE defines a total of 504 physical layer cell identifiers, which requires a 9-bit identifier.
  • the identifier of 504 ⁇ 511 can be used as the virtual cell identifier, and then the configuration information of the first RE group is used. And the corresponding virtual cell identifier is placed in the measurement set information. That is, the measurement set information includes configuration information of each second RE group in the RE group set and a cell identifier of a cell corresponding to each second RE group, and configuration information of each first RE group and each first The virtual d and area ID corresponding to the RE group.
  • the terminal 20 determines the configuration information of the first RE group included in the measurement set information according to the virtual cell identifier corresponding to the first RE group, and determines the first RE according to the determined configuration information. The location of the group.
  • the terminal 20 checks the corresponding cell identifier, finds the configuration information corresponding to the virtual cell identifier, uses the configuration information as the configuration information of the first RE group, and then knows the period of the first RE group according to the configuration information.
  • the frame offset and its position in the subframe is the same.
  • the measurement set information may also have no configuration information of each first RE group and a virtual cell identifier corresponding to each first RE group, and only includes configuration information of each second RE group and a cell corresponding to each second RE group. Cell identification. In this way, the configuration information of the first RE group of the terminal 20 can be implicitly notified. However, before applying the implicit notification, the network side device 10 needs to send configuration information of each RE group in the RE group set to the terminal.
  • the terminal 20 receives the configuration information of each RE group in the RE group set from the network side device, so that the configuration information of all RE groups in the RE group set is known, and then all non-second REs are searched from the RE group set.
  • the group that is, the set of the RE group, but not the second group of the RE
  • the RE group that is found is the first RE group
  • the configuration information corresponding to the first RE group is determined from the configuration information of all the RE groups in the set of the RE group.
  • the period of the first RE group, the subframe offset, and its position in the subframe are determined according to the determined configuration information.
  • the network side device 10 determines the interference measurement indication information corresponding to the configuration information of the first RE group according to the correspondence between the configuration information and the interference measurement indication information, and uses the determined interference measurement indication information as the first interference notification information.
  • the terminal 20 determines configuration information of the first RE group according to the interference measurement indication information, where The location of the first RE group is determined based on the determined configuration information.
  • the interference measurement indication information is determined by the network side device 10 in a bitmap manner; or the interference measurement indication information is determined by the network side device 10 according to the number of the first RE group, for example, directly notifying the terminal of the specific first RE group number, If the terminal needs to perform measurement interference on the nth RE group, the terminal may be directly notified to n; or
  • the interference measurement indication information is determined by the network side device 10 according to the configuration information of the first RE group; or
  • the interference measurement indication information is determined by the network side device 10 according to the configuration information of the first RE group and the virtual cell identifier corresponding to the first RE group.
  • the network side device 10 may send the RE group set to the terminal 20.
  • the configuration information of each RE group or the configuration information of the first RE group is sent to the terminal 20, and then the corresponding interference measurement indication information is determined according to the location of each RE group.
  • the network side device 10 can also directly send the configuration information of the first RE group to the terminal 10, so that the terminal 10 can further determine the location of the first RE group, and the terminal 10 directly receives the configuration information of the first RE group to perform the first RE group. Location is determined.
  • the interference measurement indication information is determined by the network side device 10 by means of a bitmap.
  • the third group is the first RE group, where "0" indicates that the corresponding RE group is not the first RE group, and "1" indicates that the corresponding RE group is the first RE group, and the interference measurement indication information is ⁇ 0, 0, 0. , 1, 0, 0 ⁇ , where each bit corresponds to one RE. If the 0th group RE is the RE occupied by the measurement pilot of the cell 1, it will be notified by other signaling.
  • the interference measurement information sent to the terminal can remove the corresponding bit of the 0th group and compress it into 5 bits, that is, ⁇ 0, 0, 1, 0, 0 ⁇ , where the first bit corresponds to the first group, the second bit. Corresponding to the second group, and so on.
  • the terminal 20 determines the first RE group according to the bitmap manner according to the configuration information of all the RE groups in the RE group set received from the network side device 10, and determines the first information from the configuration information of the RE group. Configuration information of an RE group.
  • the terminal 20 searches for a corresponding RE group from all RE groups, and determines that the third group corresponds to "1", and knows that the third group is the third group.
  • An RE group searching for configuration information of the third group from configuration information of all RE groups in the RE group set, and determining a period, a subframe offset, and a position in the subframe of the first RE group according to the found configuration information. .
  • the interference measurement indication information is determined by the network side device 10 in a bitmap manner.
  • the interference measurement indication information is determined by the network side device 10 in a bitmap manner.
  • the third group in the cell 1 is the first RE group, and the "0" indicates that the corresponding RE group is not the first RE group.
  • "" indicates that the corresponding RE group is the first RE group, and the interference measurement indication information is ⁇ 0, 0, 1), where each bit corresponds to a group of REs, and the corresponding mode may be specified in the protocol or may be determined by the network side and the terminal side. If the network side device 10 sends the configuration information of all the RE groups in the RE group set to the terminal, Then the RE groups in the RE group set need to be numbered in a determined order.
  • the terminal 20 receives the configuration information of all RE groups in the RE group set from the network side device 10, determines the first RE group from the RE group set according to the bitmap manner, and selects all the RE groups in the received RE group set. In the configuration information, determine the configuration information of the first RE group.
  • the terminal 20 searches for the corresponding RE group from the RE group set, determines that the third group corresponds to "1", and knows that the three groups are the first RE group, and then receives the The configuration information of the third group is found in the configuration information of all the RE groups in the RE group set, and the period of the first RE group, the subframe offset, and the position in the subframe are determined according to the found configuration information.
  • the bitmap information or the number information of the RE group may be sent to the terminal through high layer signaling or sent to the terminal through physical layer signaling.
  • the interference measurement indication information is determined by the network side device 10 according to the configuration information of the first RE group (that is, the configuration information of the first RE group is used as the interference measurement indication information), or according to the configuration information of the first RE group and the first RE group.
  • the corresponding virtual cell identifier is determined (that is, the configuration information of the first RE group and the virtual cell identifier corresponding to the first RE group are used as the interference measurement indication information), and the configuration information of the first RE group is sent to the terminal 20, so The configuration information of each RE group in the RE group set is transmitted to the terminal 20.
  • the terminal 20 after receiving the configuration information of the first RE group (or separately receiving the configuration information of the first RE group and the virtual cell identifier corresponding to the first RE group), the terminal 20 knows that the RE group corresponding to the configuration information is The first RE group, and determining the location of the first RE group according to the configuration information.
  • the interference measurement indication information in the embodiment of the present invention is not limited to the above four types, and other content that enables the terminal to determine the configuration information of the first RE group can be used as the interference measurement indication information in the embodiment of the present invention.
  • the network side device 10 needs to send the measurement set information and the interference measurement indication information to the terminal 20, for example, the measurement set information including only the configuration information of each second RE group and the cell identity of the cell corresponding to each second RE group is transmitted.
  • the measurement indication information is transmitted, and the measurement set information and the interference measurement indication information may be transmitted together or separately.
  • the network side device 10 can send the configuration information of each RE group in the RE group set or only the configuration information of the first RE group to the terminal 20 regardless of the manner.
  • the location information in the subframe is included in the configuration information
  • the location information may also be determined by using a bitmap. For example, according to Figure 8, there are 6 groups, which requires 6-bit position information. Assume that Group 1 and Group 2 are silent RE groups, “0" means that the corresponding RE group is not a silent RE group, and “1” means that the corresponding RE group is a silent RE group, and the position information is ⁇ 0, 1, 1, 0, 0, 0 ⁇ , where each is determined by negotiation.
  • location information in addition to the bitmap mode, other information capable of determining the location may also be used as location information, such as number information, in the embodiment of the present invention.
  • the network side device 10 after determining that the terminal 20 needs to perform interference measurement on the first RE group, the network side device 10 generates first interference notification information according to the determined configuration information of the first RE group.
  • the network side device 10 determines the second interference notification information after determining that the terminal 20 does not need to perform interference measurement on the first RE group, the second interference notification information is sent to the terminal, and the terminal is instructed to perform interference measurement according to the CRS and/or the measurement pilot. .
  • the second RE group occupies all possible RE groups, and cannot find a suitable RE group for the terminal to estimate interference; or In order to control the overhead, the introduction of an additional first RE group adds overhead; or
  • the terminal can accurately estimate interference based on CRS and/or measurement pilots.
  • the second interference notification information is determined by the network side device 10 in a bitmap manner; or the second interference notification information is determined by the network side device 10 according to the virtual cell identifier.
  • the interference measurement indication information described above can be utilized. Specifically, it can be determined by 2 bits, assuming that the first bit of 2 bits corresponds to the CRS, the second bit corresponds to the measurement pilot, "0" represents no, "1" represents no, if the terminal is required to perform interference measurement according to the CRS, then 2 The bit is 10; if the terminal is required to perform interference measurement according to the measurement pilot, 2 bits are 01; if the terminal is required to perform interference measurement according to CRS (Common Pilot) and measurement pilot, 2 bits are 11.
  • CRS Common Pilot
  • the interference measurement indication information it is also possible to add 2 bits to the interference measurement indication information, so that the first interference notification information and the second interference notification information can be made into one interference notification information. For example, if the interference measurement indication information requires 6 bits, then 2 bits can be added at the end, and the measurement information is 8 bits. If it is determined that the terminal 20 is required to perform interference measurement on the first RE group, the first 6 bits of the interference measurement indication information are determined according to the bitmap, and the last 2 bits are all 0; if it is determined that the terminal 20 is not required to perform interference on the first RE group For measurement, the first 6 bits of the interference measurement indication information are all 0, and the last 2 bits are determined as needed.
  • the terminal 20 receives the 2-bit information, it knows that the interference measurement is not performed on the first RE group, and then according to the specific bit value, it is known by what way to interfere with the measurement; if the terminal 20 receives the interference measurement indication information, and the interference measurement If the last 2 bits of the indication information are not all 0, it is known that the interference measurement is not performed on the first RE group, and then according to the specific bit value, it is known how to interfere with the measurement.
  • a corresponding virtual cell identifier may be directly sent, for example, the CRS corresponding to the virtual cell identifier, and the measurement pilot corresponding to the virtual cell identifier, if received, Then, it is known that CRS is used for interference measurement; if ⁇ is received, it is known that the measurement pilot is used for interference measurement; if ⁇ and ⁇ are received, it is known that CRS and measurement pilot are used for interference measurement.
  • All the information sent by the network side device 10 to the terminal 20 can pass the high layer signaling. Sent as RRC signaling.
  • the terminal 20 When the terminal 20 performs interference measurement on the determined first RE group, the average received power value on the first RE group can be determined, and the determined average power value is taken as the interference estimation value.
  • the network side device 10 of the embodiment of the present invention may be a base station (such as a macro base station, an evolved base station, a home base station, etc.), or may be an RN (relay) device, or may be other network side devices.
  • a base station such as a macro base station, an evolved base station, a home base station, etc.
  • RN relay
  • the method for measuring interference, the network side device, and the terminal are also provided in the embodiment of the present invention. Since the principles of solving the problem by the methods and devices are similar to the system for measuring interference in the embodiment of the present invention, these methods and The implementation of the device can be referred to the implementation of the system, and the details are not repeated here.
  • the network side device of the embodiment of the present invention includes: a configuration information determining module 100, a generating module 110, and a sending module 120.
  • the configuration information determining module 100 is configured to determine configuration information of the first RE group that performs interference measurement.
  • the generating module 110 is configured to generate first interference notification information according to the configuration information of the first RE group determined by the configuration information determining module 100.
  • the sending module 120 is configured to send the first interference notification information generated by the generating module 110 to the terminal, to instruct the terminal to determine the first RE group according to the first interference notification information, and perform interference measurement on the determined first RE group.
  • the generating module 110 determines the measurement set information, and uses the determined measurement set information as the first interference notification information, where the measurement set information includes configuration information of each second RE group and a cell corresponding to each second RE group. a cell identifier, and configuration information of each first RE group and a virtual cell identifier corresponding to each first RE group, or the measurement set information includes only configuration information of each second RE group and each second RE The cell identifier of the corresponding cell of the group;
  • the second RE group is an RE group used to measure a neighbor cell channel.
  • the sending module is further configured to: send the first RE group to the terminal Configuration information.
  • the measurement set information includes only the configuration information of each second RE group and each second RE group The cell identifier of the corresponding cell;
  • the network side device of the embodiment of the present invention further includes: a first notification module 130.
  • the first notification module 130 is configured to send configuration information of each RE group in the RE group set to the terminal.
  • the generating module 110 determines the interference measurement indication information corresponding to the configuration information of the first RE group according to the correspondence between the configuration information and the interference measurement indication information, and uses the determined interference measurement indication information as the first interference notification information.
  • the interference measurement indication information is determined by the generation module 110 by means of a bitmap; or
  • the interference measurement indication information is determined by the generation module 110 according to the configuration information of the first RE group; or the interference measurement indication information is determined by the generation module 110 according to the number of the first RE group; or the interference measurement indication information is generated by the generation module 110 according to the first
  • the configuration information of the RE group is determined by the virtual cell identifier corresponding to the first RE group.
  • the interference measurement indication information is determined by the generation module 110 in a bitmap manner, or the interference measurement indication information is determined by the generation module 110 according to the number of the first RE group;
  • the network side device of the embodiment of the present invention further includes: a second notification module 140.
  • the second notification module 140 is configured to send, to the terminal, configuration information of each RE group in the RE group set, where the RE group set is composed of the first RE group and the second RE group.
  • the generating module 110 may further generate first interference notification information according to the determined configuration information of the first RE group after determining that the terminal needs to perform interference measurement on the first RE group.
  • the generating module 110 determines that the terminal does not need to perform interference measurement on the first RE group, the second interference notification information is generated.
  • the sending module 120 sends the second interference notification information to the terminal, indicating that the terminal is configured according to the CRS and/or the measurement. Frequency interference measurement.
  • the terminal in the embodiment of the present invention includes: a location determining module 200 and a measurement module.
  • the location determining module 200 is configured to determine, according to the received first interference notification information from the network side device, a location of the first RE group that performs the interference measurement.
  • the measurement module 210 is configured to perform interference measurement on the first RE group determined by the location determining module 200. If the first interference notification information is configuration information including each second RE group and a cell identifier of a cell corresponding to each second RE group, and configuration information of each first RE group and each first RE group Measurement set information of the virtual cell identifier, where the second RE group is an RE group used for measuring a neighbor cell channel;
  • the location determining module 200 determines configuration information of the first RE group included in the measurement set information according to the virtual cell identifier corresponding to the first RE group, and determines the location of the first RE group according to the determined configuration information.
  • the first interference notification information is measurement set information including only the configuration information of each second RE group and the cell identity of the cell corresponding to each second RE group, where the second RE group is the RE used for measuring the neighbor cell channel Group
  • the location determining module 200 receives configuration information of each RE group in the set of RE groups from the network side device, searches for non-second RE groups from configuration information of all RE groups in the RE group set, and uses the found RE group as The first RE group, and determining the configuration information corresponding to the first RE group from the received RE group set, and determining the location of the first RE group according to the determined configuration information, where the RE group set is composed of all silent RE groups.
  • the first interference notification information is interference measurement indication information
  • the location determining module 200 determines configuration information of the first RE group according to the interference measurement indication information, and determines the location of the first RE group according to the determined configuration information.
  • the interference measurement indication information is determined by the network side device by using a bitmap
  • the location determining module 200 receives configuration information of all RE groups in the RE group set from the network side device, determines a first RE group from all RE groups according to a bitmap manner, and configures configuration information of all RE groups in the received RE group set. Determining configuration information of the first RE group;
  • the location determining module 200 receives configuration information of all RE groups in the RE group set from the network side device, and all REs from the RE group set according to the numbering manner. Determining the first RE group in the group, and determining configuration information of the first RE group from configuration information of all RE groups in the received RE group set;
  • the RE group set is composed of a first RE group and a second RE group.
  • the location determining module 200 is further configured to: receive configuration information of the first RE group sent by the network side.
  • the measurement module 210 determines an average received power value on the first RE group, and uses the determined average power value as a dry estimate.
  • the first method for measuring interference in the embodiment of the present invention includes the following steps: Step 501: A network side device determines configuration information of a first RE group that performs interference measurement.
  • Step 502 The network side device generates the first interference notification information according to the determined configuration information of the first RE group, and sends the first interference notification information to the terminal, where the terminal is configured to determine the first RE group according to the first interference notification information, and Interference measurements are made on the determined first RE group.
  • each subframe has multiple REs, and multiple REs can be selected from all REs and divided into multiple RE groups.
  • the specific grouping situation can be determined in the protocol or negotiated between the network side and the terminal side.
  • the divided multiple RE groups may be updated as needed.
  • the packet status after the specific update can be determined in the protocol or negotiated between the network side and the terminal side.
  • the RE group here may or may not include the RE occupied by the measurement pilot of the serving cell.
  • the network side device 10 selects a plurality of groups that need to be silent (ie, a group consisting of MUTING REs in the background art) from the group of REs to form an RE group set, and select at least one group of REs from the RE group set.
  • the first RE group that is, the RE group set is composed of all silent RE groups.
  • the number of RE groups in the RE group set may be more than the number of RE groups occupied by the pilots of the coordinated transmission cell of the terminal.
  • the network side device determines the first RE group that performs interference measurement according to the location of the RE group set of the neighboring cell or according to the location of the terminal, or randomly selected.
  • the configuration information of each first RE group can be determined.
  • the configuration information of the RE group includes but is not limited to one or more of the following information:
  • the network side device generates the first interference notification information according to the determined configuration information of the first RE group. There are several ways to do the following:
  • the network side device determines the measurement set information, and uses the determined measurement set information as the first notification information.
  • the second RE group is the RE group used for measuring the channel of the neighboring cell, and the cells corresponding to the different second RE groups are different, so the second RE may be used.
  • the configuration information corresponding to the group and the cell identifier of the corresponding cell are placed in the measurement set information; and the first RE group also has configuration information, but there is no corresponding cell, so the virtual cell identifier can be used as the cell identifier corresponding to the first RE group, for example, LTE defines a total of 504 physical layer cell identifiers, and requires a 9-bit identifier.
  • the 504-511 identifier can be used as the virtual cell identifier, and then the configuration information of the first RE group and the corresponding virtual cell identifier are placed in the measurement set information. That is, the measurement set information includes configuration information of each second RE group in the RE group set and a cell identifier of a cell corresponding to each second RE group, and configuration information of each first RE group and each first The virtual d and area ID corresponding to the RE group.
  • the measurement set information may also have no configuration information of each first RE group and a virtual cell identifier corresponding to each first RE group, and only includes configuration information of each second RE group and a cell corresponding to each second RE group. Cell identification. In this way, the configuration information of the first RE group of the terminal can be implicitly notified, but before the implicit notification is applied, the network side device needs to send the configuration information of each RE group in the RE group set to the terminal.
  • the network side device determines the interference measurement indication information corresponding to the configuration information of the first RE group according to the correspondence between the configuration information and the interference measurement indication information, and uses the determined interference measurement indication information as the first interference notification information.
  • the interference measurement indication information is determined by the network side device by using a bitmap manner; or the interference measurement indication information is determined by the network side device according to the number of the first RE group; or the interference measurement indication information is that the network side device is according to the first RE group. And the interference measurement indication information is configured by the network side device according to the configuration information of the first RE group and the first RE group The corresponding virtual d and area identifier are determined.
  • the network side device may send each RE in the RE group set to the terminal.
  • the configuration information of the group or the configuration information of the first RE group is sent to the terminal 20, and then the corresponding interference measurement indication information is determined according to the location of each RE group.
  • the configuration information of the first RE group It will be sent to the terminal, so there is no need to send the configuration information of each RE group in the RE group set to the terminal.
  • the interference measurement indication information in the embodiment of the present invention is not limited to the above four types, and other content that enables the terminal to determine the configuration information of the first RE group can be used as the interference measurement indication information in the embodiment of the present invention.
  • the network side device needs to send measurement set information and interference measurement indication information to the terminal, for example, sending measurement information including only the configuration information of each second RE group and the cell identity of each cell corresponding to the second RE group, and interference measurement
  • the indication information may be sent together with the interference measurement indication information or separately.
  • the network side device may send configuration information of each RE group in the RE group set or only configuration information of the first RE group to the terminal regardless of the manner.
  • the location information included in the subframe may also be determined by using a bitmap.
  • the network side device after determining that the terminal needs to perform interference measurement on the first RE group, the network side device generates first interference notification information according to the determined configuration information of the first RE group.
  • the network side device determines the second interference notification information after determining that the terminal does not need to perform interference measurement on the first RE group, the second interference notification information is sent to the terminal, and the terminal is instructed to perform interference measurement according to the CRS and/or the measurement pilot.
  • the second RE group occupies all possible RE groups, and cannot find a suitable RE group for the terminal to estimate interference; or In order to control the overhead, the introduction of an additional first RE group adds overhead; or
  • the terminal can accurately estimate interference based on CRS and/or measurement pilots.
  • the second interference notification information is determined by the network side device by using a bitmap manner; or the second interference notification information is determined by the network side device according to the virtual d and the area identifier.
  • the interference measurement indication information described above may be utilized.
  • the interference measurement indication information it is also possible to add 2 bits to the interference measurement indication information, so that the first interference notification information and the second interference notification information can be made into one interference notification information. For example, if the interference measurement indication information requires 6 bits, then 2 bits can be added at the end, and the measurement information is 8 bits. If it is determined that the terminal 20 is required to perform interference measurement on the first RE group, the first 6 bits of the interference measurement indication information are determined according to the bitmap, and the last 2 bits are all 0; if it is determined that the terminal 20 is not required to perform interference on the first RE group For measurement, the first 6 bits of the interference measurement indication information are all 0, and the last 2 bits are determined as needed.
  • a corresponding virtual d and area identifier may be directly sent.
  • All the information sent by the network side device to the terminal can be sent by using high layer signaling, such as RRC signaling.
  • the network side device in the embodiment of the present invention may be a base station (such as a macro base station, an evolved base station, a home base station, etc.), or an RN (relay) device, or other network side devices.
  • a base station such as a macro base station, an evolved base station, a home base station, etc.
  • RN relay
  • the second method for measuring interference in the embodiment of the present invention includes the following steps: Step 601: The terminal determines, according to the received first interference notification information from the network side device, the first RE group that performs interference measurement. position.
  • Step 602 The terminal performs interference measurement on the determined first RE group.
  • the terminal determines the configuration information of the first RE group included in the measurement set information according to the virtual cell identifier corresponding to the first RE group, and determines the first RE according to the determined configuration information. The location of the group.
  • the terminal checks the corresponding cell identifier, finds the configuration information corresponding to the virtual cell identifier, uses the configuration information as the configuration information of the first RE group, and then, according to the configuration information, can know the period of the first RE group, the subframe offset. And its position in the subframe.
  • the first interference notification information is measurement set information including only configuration information of each second RE group and a cell identity of a cell corresponding to each second RE group, where the RE group set is composed of the first RE group and the second RE group Composition
  • the terminal receives the configuration information of each RE group in the RE group set of the network side device, so that the configuration information of all the RE groups in the RE group set is known, and then all the non-second REs are searched from the RE group set.
  • the group that is, the set of the RE group, but not the second group of the RE
  • the RE group that is found is the first RE group
  • the configuration information corresponding to the first RE group is determined from the configuration information of all the RE groups in the set of the RE group.
  • the period of the first RE group, the subframe offset, and its position in the subframe are determined according to the determined configuration information.
  • the first interference notification information is interference measurement indication information
  • step 601 the terminal determines configuration information of the first RE group according to the interference measurement indication information, and determines a location of the first RE group according to the determined configuration information.
  • the interference measurement indication information is determined by the network side device in a bitmap manner; or the interference measurement indication information is determined by the network side device according to the number of the first RE group, for example, directly notifying the terminal of the specific first RE group number, requiring the terminal If the measurement interference is performed on the nth RE group, the terminal may be directly notified to n; or
  • the interference measurement indication information is determined by the network side device according to the configuration information of the first RE group; or the interference measurement indication information is determined by the network side device according to the configuration information of the first RE group and the virtual d and the area identifier corresponding to the first RE group. .
  • the interference measurement indication information is determined by the network side device 10 in a bitmap manner; or the interference measurement indication information is determined by the network side device according to the number of the first RE group.
  • the terminal Receiving configuration information of all RE groups in the RE group set of the network side device or configuration information of the first RE group, in step 601, the terminal determines the first RE group according to the bitmap mode or number, and receives the RE group from the In the configuration information, determine the configuration information of the first RE group.
  • the terminal is in a separate manner. After receiving the configuration information of the first RE group (or separately receiving the configuration information of the first RE group and the virtual cell identifier corresponding to the first RE group), it is known that the RE group corresponding to the configuration information is the first RE group, and according to The configuration information determines the location of the first RE group in the subframe.
  • the interference measurement indication information in the embodiment of the present invention is not limited to the above four types, and other content that enables the terminal to determine the configuration information of the first RE group can be used as the interference measurement indication information in the embodiment of the present invention.
  • step 602 when the terminal performs interference measurement on the determined first RE group, the average received power value on the first RE group may be determined, and the determined average power value is used as the interference estimation value.
  • the method in the implementation of the present invention further includes:
  • the interference measurement is performed according to the CRS and/or the measurement pilot according to the indication of the second interference notification information.
  • the second interference notification information is determined by the network side device 10 in a bitmap manner, it is assumed that the first bit of 2 bits corresponds to the CRS, the second bit corresponds to the measurement pilot, and "0" represents no, " ⁇ represents no, if 2 bits If it is 10, it is determined that the interference measurement is performed according to the CRS; if 2 bits is 01, it is determined that the interference measurement is performed according to the measurement pilot; if the 2 bits is 11, it is determined that the interference measurement is performed according to the CRS and the measurement pilot.
  • the interference measurement indication information it is also possible to add 2 bits to the interference measurement indication information, so that the first interference notification information and the second interference notification information can be made into one interference notification information. For example, if the interference measurement indication information needs 6 bits, then 2 bits can be added at the end, and the dry measurement instruction information is 8 bits. If the first 6 bits of the interference measurement indication information received by the terminal are not all "0", and the last 2 bits are all "0", it is determined that the interference measurement needs to be performed on the first RE group; if the interference measurement indication information received by the terminal The first 6 bits are all "0", the last 2 bits are not all "0", then it is determined not It is necessary to perform interference measurement on the first RE group, and further determine the measurement mode according to the last 2 bits.
  • the terminal may determine the measurement mode according to the corresponding virtual cell identifier, for example, the CRS corresponds to the virtual cell identifier A, and the measurement pilot corresponds to the virtual cell identifier B.
  • the CRS corresponds to the virtual cell identifier A
  • the measurement pilot corresponds to the virtual cell identifier B.
  • A it is known that CRS is used for interference measurement.
  • B it is known to use the measurement pilot for interference measurement.
  • a and B it is known to use CRS and measurement pilot for interference measurement.
  • FIG. 5 and FIG. 6 can synthesize a process to form a new method for measuring interference, that is, steps 501 and 502 are performed, and then steps 601 and 602 are performed.
  • the method for performing interference using the MUTING RE in the embodiment of the present invention includes the following steps:
  • Step 1101 The base station determines, by using information interaction, the self-configured MUTING RE configuration information.
  • Step 1102 The base station notifies each terminal of the configuration information of each MUTING RE group by broadcast or RRC signaling.
  • the number and location of the MUTING RE are included; the location information of the MUTING RE includes a period, a subframe offset, a position within the subframe, etc.; the main purpose of notifying the location information of the MUTING RE to the terminal is to enable the terminal to correctly calculate Rate matching parameters to achieve proper demodulation.
  • Step 1103 The base station determines a MUTING RE group for performing interference measurement in each MUTING RE group.
  • Step 1104 The base station notifies the terminal of the MUTING RE group for interference measurement.
  • Step 1105 The terminal determines a MUTING RE group that performs interference measurement, and determines configuration information of the MUTING RE group that performs interference measurement.
  • Step 1106 The terminal determines, according to the configuration information of the MUTING RE group that performs the interference measurement, the location of the MUTING RE group that performs the interference measurement in the subframe.
  • Step 1107 The terminal estimates an average received power value on the MUTING RE group that performs interference measurement, and uses the average received power value as the interference estimation value.
  • embodiments of the invention may be provided as a method, system, or Computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can be embodied in the form of one or more computer program products embodied on a computer-usable storage medium (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.
  • a computer-usable storage medium including but not limited to disk storage, CD-ROM, optical storage, etc.
  • 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.
  • the terminal determines the CQI by using the interference determined by the embodiment of the present invention
  • the accuracy of the high CQI enables the base station to better achieve link adaptation, thereby improving the efficiency of data transmission.

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Description

一种测量干扰的方法、 系统和设备 本申请要求在 2010 年 9 月 10 日提交中国专利局、 申请号为 201010280130.7、 发明名称为"一种测量干扰的方法、 系统和设备"的中国专 利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域 本发明涉及无线通信技术领域, 特别涉及一种测量干扰的方法、 系统和 设备。 背景技术
无线蜂窝网络系统中每个小区通常有一个基站与用户终端通信。 数据传 输过程开始之前, 基站会向用户终端发送参考信号(即导频信号), 用户终端 则根据这些参考信号获得信道估计值。 参考信号是在约定好在特定时间, 特 定频率上发送的已知信号序列。 干扰和噪声等因素都会影响信道估计的质量。
通常用户终端是位于不同的地理位置的, 会有不同的接收信号强度以及 噪声和干扰的强度。 因此, 一些用户终端可以以较高的速率通信, 如位于小 区中心的终端, 而另外一些用户终端则只能以较低速率通信, 如小区边缘的 终端。 为了充分利用用户终端的传输带宽, 发送给用户终端的数据格式最好 能与该用户终端的信道条件相匹配。 使得发送给用户终端的数据格式与其信 道条件相匹配的技术称为链路自适应。
为了帮助基站实现链路自适应, 用户终端需要根据其信道条件上报信道 质量指示信息 (CQI )。 用户终端上报的 CQI对应着一定的时频资源, 也就是 说, 用户终端上报的 CQI是表示这些时频资源上的传输能力。 CQI的计算需 要用户终端测得自身受到的邻小区的干扰和噪声,包括干扰 I和噪声功率 N0。
ITU ( International Telecommunication Union, 国际通信联盟 )为下一代移 动通信系统的性能提出了非常苛刻的要求。 比如最大系统传输带宽达到
100MHz, 上下行数据传输的峰值速率需要达到 lGbps和 500M bps, 并对系 统平均频谱效率尤其是边缘频谱效率提出了非常高的需求。 为了满足新系统 的要求, 3GPP 在其下一代移动蜂窝通信系统 LTE-A ( Long Term Evolution- Advanced, 长期演进升级) 中提出了釆用多点协同传输技术来提高 系统的性能。 多点协同传输技术是地理位置上分离的多个传输点之间的协作。 一般来说, 多个传输点是不同小区的基站。 多点协同传输技术分下行的协同 传输和上行的联合接收。 下行多点协同传输技术方案主要分为两类: 联合调 度和联合发送。 联合调度是通过小区之间的时间、 频率和空间资源的协调, 为不同的 UE (终端)分配互相正交的资源, 避免相互之间的干扰。 小区间的 干扰是制约小区边缘 UE性能的主要因素,因此联合调度可以降低小区间的干 扰,从而提高小区边缘 UE的性能。如图 1A所示,通过 3个小区的联合调度, 将可能会相互干扰的三个 UE调度了到相互正交的资源上,有效的避免了小区 之间的干扰。
与联合调度方案只有一个小区向 UE发送数据不同,联合发送方案中有多 个小区同时向 UE发送数据, 以增强 UE接收信号。 如图 1B所示, 三个小区 在相同的资源上向一个 UE发送数据, UE同时接收多个小区的信号。一方面, 来自多个小区的有用信号叠加可以提升 UE接收的信号质量, 另一方面, 降低 了 UE受到的干扰, 从而提高系统性能。
为有效的支持多点协作传输, 除了服务小区, 终端还需要估计协作小区 基站到终端的信道状态信息。 LTE-A 中的信道状态信息估计是通过测量导频 完成。 如图 3所示的是一个 PRB ( Physical Resource Block, 物理资源块) 内 的导频与数据映射关系。 前两个 OFDM ( Orthogonal Frequency Division Multiplexing, 正交频分复用 )符号用于控制信息的传输, 从第 3个 OFDM符 号开始是数据区域。 数据区域内包括导频 RE ( Resource Element , 资源单元) 和数据 RE。 相邻小区的导频通常会映射到不同的 RE上。 这是因为通常导频 RE的功率会较高, 且为全带宽发射, 映射到相同 RE上的导频之间干扰会非 常强烈, 影响信道估计的精度。 从图 1C可以看出, 小区 1内的终端为获得小 区 2和小区 3的信道状态信息, 需要在小区 2和小区 3的测量导频对应的 RE 上进行信道估计。 而在这些 RE上, 小区 1 内可能会调度下行数据传输(如 PDSCH ( Physical Downlink Shared Channel, 物理下行链路共享信道 ) ), 也就 是说小区 2和小区 3的导频会受到小区 1的数据传输的干扰。 对于小区 1 内 的终端, 其接收到的小区 1的信号强度通常会远远大于小区 2和小区 3的信 号强度, 使得小区 2和小区 3的测量导频的信干噪比 (SINR ) 非常低, 无法 获得满意的信道估计精度。 为解决这一问题, 小区 1 可以将小区 2和小区 3 发送测量导频的那些 RE 空出来, 即发送零功率信号, 这种方案称为 RE MUTING, 空出来的 RE称为静默的 RE ( MUTING RE ), 具体参见图 1D。
终端反馈 CQI需要估计出自身受到的干扰, 在 RE MUTING的方案中邻 小区的干扰在导频的位置已经没有了。 因为相邻小区的干扰通常是最强的, 在导频位置估计出来的干扰要远低于实际受到的干扰。
综上所述, 目前如果小区釆用 RE MUTING方案, 终端测量的干扰精度 比较低。 发明内容
本发明实施例提供一种测量干扰的方法、 系统和装置, 用以解决现有技 术中存在的如果小区釆用 RE MUTING方案, 终端测量的干扰精度比较低的 问题。
本发明实施例提供的一种测量干扰的方法, 包括:
网络侧设备确定进行干扰测量的第一资源单元 RE组的配置信息; 所述网络侧设备根据所述第一 RE组的配置信息生成第一干扰通知信息, 并向终端发送所述第一干扰通知信息, 用于指示所述终端根据所述第一干扰 通知信息确定第一 RE组, 并在确定的第一 RE组上进行干扰测量。
本发明实施例提供的另一种测量干扰的方法, 包括:
所述终端根据收到的来自网络侧设备的第一干扰通知信息, 确定进行干 扰测量的第一 RE组的位置;
所述终端在确定的第一 RE组上进行干扰测量。
本发明实施例提供的一种网络侧设备, 包括:
配置信息确定模块, 用于确定进行干扰测量的第一 RE组的配置信息; 生成模块, 用于根据所述第一 RE组的配置信息生成第一干扰通知信息; 发送模块, 用于向终端发送所述第一干扰通知信息, 用于指示所述终端 根据所述第一干扰通知信息确定第一 RE组, 并在确定的第一 RE组上进行干 扰测量。
本发明实施例提供的一种用户终端, 包括:
位置确定模块, 用于根据收到的来自网络侧设备的第一干扰通知信息, 确定进行干扰测量的第一 RE组的位置;
测量模块, 用于在确定的第一 RE组上进行干扰测量。
本发明实施例提供的一种测量干扰的系统, 包括:
网络侧设备, 用于确定进行干扰测量的第一 RE组的配置信息,根据所述 第一 RE组的配置信息生成第一干扰通知信息,并向终端发送所述第一干扰通 知信息;
终端, 用于根据收到的来自网络侧设备的第一干扰通知信息, 确定进行 干扰测量的第一 RE组的位置, 以及在确定的第一 RE组上进行干扰测量。
由于通知终端在第一 RE组上进行干扰测量,从而在釆用 RE MUTING方 案时, 提高了测量的干扰精度;
进一步的, 如果终端利用本发明实施例确定的干扰确定 CQI, 还可以提 高 CQI的精度, 进而使基站能够更好的实现链路自适应, 从而提高数据传输 的效率。 附图说明
图 1A为背景技术中联合调度示意图;
图 1B为背景技术中协同传输示意图; 图 1C为背景技术中导频域数据映射关系示意图;
图 1D为中 RE MITTING示意图;
图 2为本发明实施例测量干扰的系统结构示意图;
图 3为本发明实施例网络侧设备的结构示意图;
图 4为本发明实施例终端的结构示意图;
图 5为本发明实施例第一种测量干扰的方法流程示意图;
图 6为本发明实施例第二种测量干扰的方法流程示意图;
图 7为本发明实施例的应用场景示意图;
图 8为本发明实施例分组示意图;
图 9为本发明实施例第一种导频域数据映射关系示意图;
图 10为本发明实施例第二种导频域数据映射关系示意图;
图 11为本发明实施例利用 MUTING RE进行干扰的方法流程示意图。 具体实施方式
本发明实施例网络侧设备根据进行干扰测量的的第一 RE组的配置信息 生成第一干扰通知信息, 向终端发送第一干扰通知信息; 终端根据第一干扰 通知信息, 确定进行干扰测量的第一 RE组的位置, 以及在确定的第一 RE组 上进行干扰测量。 由于通知终端在第一 RE组上进行干扰测量, 从而在釆用 RE MUTING方案时, 提高了测量的干扰精度。
需要说明的是, 背景技术中的 RE MUTING只是一个名称, 釆用其他名 称但是具体与 RE MUTING—样的方案也适用于本发明实施例。 也就是说, 本发明实施例的第一 RE组是 MUTING RE组, 也可以是其他名字但是与 MUTING RE功能相同的 RE组。
下面结合说明书附图对本发明实施例作进一步详细描述。
如图 2所示, 本发明实施例测量干扰的系统包括: 网络侧设备 10和终端
20。
网络侧设备 10, 用于确定进行干扰测量的第一 RE组的配置信息, 根据 确定的第一 RE组的配置信息生成第一干扰通知信息, 并向终端 20发送该第 一干 4尤通知信息。
终端 20, 用于根据收到的来自网络侧设备 10的第一干扰通知信息, 确定 进行干扰测量的第一 RE组的位置,以及在确定的第一 RE组上进行干扰测量。
其中, 每个子帧有多个 RE, 可以从所有 RE中选择多个 RE, 并划分成多 个 RE组。 比如图 8所示, 将两排共 24个 RE分成 6组, 即标记 "0" 的是一 组、 标记 "1" 的是一组, 依次类推。 具体的分组情况可以在协议中或网络侧 和终端侧协商确定。
在具体实施中, 可以根据需要对划分的多个 RE组进行更新, 比如可以对 选择的 RE数目、 RE位置、 划分的 RE组的数目、 RE组的位置以及 RE组中 包括的 RE的数目和位置进行更新。具体更新后的分组情况可以在协议中确定 或网络侧和终端侧之间协商确定。
这里的 RE组可以包括或者不包括服务小区的测量导频占用的 RE。
然后网络侧设备 10从划分出来的 RE组中选择多个需要静默的 ^£组(即 背景技术中的 MUTING RE组成的组), 形成 RE组集合, 从 RE组集合中再 选择至少一组 RE作为第一 RE组, 也就是说, RE组集合由所有静默的 RE 组组成。
RE组集合中 RE组的数量可以多于终端的协作传输小区的导频占用的 RE 组数量。例如,可能只需要第 1组和第 2组的 RE,实际可以通知 UE MUTING 的 RE为第 1组和第 2组, 也可以通知第 1、 2和 3组, 这样多出来的一组 RE 用于帮助终端 20进行干扰估计。
如果 RE组集合中 RE组的数量多于终端的协作传输小区的导频占用的 RE组数量, 则可以将额外的 RE组作为第一 RE组。 参见图 9, 小区 1通知终 端 RE组集合为第 {1,2,3}组(对应图 8中的组编号), 其中第 1和第 2组是为 了更好的估计小区 2和小区 3的信道(即第二 RE组), 而第 3组 RE则是为 了估计干扰(即第一 RE组); 终端在第 3组 RE上是可以测到相邻的两个小 区的 PDSCH产生的干扰。 如果 RE组集合中 RE组的数量等于协作传输小区的导频占用的 RE组数 量, 则可以根据终端的位置配置终端在特定的 RE组上估计干扰。例如图 7中 的终端 1位于小区 1和 2的边缘, 终端 3位于小区 1的中心, 终端 2位于小 区 1和 3的边缘。 网络侧设备通知终端 2在第 1组 RE上测量干扰, 因为终端 2位于小区 1和小区 3的边缘, 小区 1和小区 3可能参与对 UE2的联合传输, 此时小区 3的信号对终端 2不再是干扰, 而小区 2的信号由于衰减严重, 在 终端 2处可以忽略, 因此, 终端 2可以比较准确的估计出联合传输时受到的 干扰。 如果终端 2只进行单小区传输, 小区 3的信号对终端仍然是干扰, 此 时网络侧设备可以配置终端 2在第 2组 RE上测量干扰,此时终端 2仍然可以 测到对其干扰较大的小区 3的干扰。位于小区 1中心的终端 3 , 小区 2和小区 3到 UE3的信号都比较微弱 , 因此其在第 1组 (或者第 2组) RE上测量得到 的干扰可以很准确的反映终端在进行单小区传输时受到的干扰, 参见图 10。
具体的, 网络侧设备 10根据相邻小区的 RE组集合的位置或根据终端的 位置或随机选择, 确定进行干扰测量的第一 RE组。
在确定了第一 RE组后, 就可以确定每个第一 RE组的配置信息。
RE组的配置信息包括但不限于下列信息中的一种或多种:
天线端口数目、 导频模式、 导频发送周期、 子帧偏移、 RE组内 RE的数 目、 周期、 在子帧内的位置。
其中, 导频模式是指小区发送的导频在一个子帧内占用的 RE位置。
网络侧设备 10根据确定的第一 RE组的配置信息生成第一干扰通知信息 的方式有艮多种, 下面列举几种:
方式一、 网络侧设备 10确定测量集合信息, 将确定的测量集合信息作为 第一干扰通知信息。
由于终端要在第二 RE组上进行小区的信道状态信息测量, 即第二 RE组 是测量邻小区信道所使用的 RE组, 不同的第二 RE组对应的小区不同, 所以 可以将第二 RE组对应的配置信息以及对应小区的小区标识置于测量集合信 息中; 而第一 RE组也有配置信息, 但是没有对应的小区, 所以可以用虚拟小 区标识作为第一 RE组对应的小区标识, 比如 LTE共定义了 504个物理层小 区标识, 需要 9比特标识, 这样 504 ~ 511的标识可以作为虚拟小区标识, 然 后将第一 RE组的配置信息和对应的虚拟小区标识置于测量集合信息中。也就 是说, 测量集合信息包括 RE组集合中每个第二 RE组的配置信息和每个第二 RE组对应的小区的小区标识 ,以及每个第一 RE组的配置信息和每个第一 RE 组对应的虚拟 d、区标识。
相应的, 终端 20在收到第一干扰通知信息后, 根据第一 RE组对应的虚 拟小区标识,确定测量集合信息包括的第一 RE组的配置信息,根据确定的配 置信息, 确定第一 RE组的位置。
具体的, 终端 20查看对应的小区标识, 找到虚拟小区标识对应的配置信 息,将这个配置信息作为第一 RE组的配置信息, 然后才艮据配置信息就可以知 道第一 RE组的周期, 子帧偏移以及其在子帧中的位置。
测量集合信息还可以没有每个第一 RE组的配置信息和每个第一 RE组对 应的虚拟小区标识 , 只包括每个第二 RE组的配置信息和每个第二 RE组对应 的小区的小区标识。 这样就可以隐式通知终端 20第一 RE组的配置信息, 但 是应用隐式通知之前, 网络侧设备 10需要向终端发送 RE组集合中每个 RE 组的配置信息。
相应的, 终端 20接收来自网络侧设备的 RE组集合中每个 RE组的配置 信息,从而就知道 RE组集合中所有 RE组的配置信息, 然后从 RE组集合中, 查找所有非第二 RE组(即属于 RE组集合, 但不是第二 RE组), 将查找到的 RE组作为第一 RE组, 并从 RE组集合中所有 RE组的配置信息中确定第一 RE组对应的配置信息, 最后才艮据确定的配置信息确定第一 RE组的周期, 子 帧偏移以及其在子帧中的位置。
方式二、 网络侧设备 10根据配置信息和干扰测量指示信息的对应关系, 确定第一 RE组的配置信息对应的干扰测量指示信息,将确定的干扰测量指示 信息作为第一干扰通知信息。
相应的, 终端 20根据干扰测量指示信息确定第一 RE组的配置信息, 根 据确定的配置信息确定第一 RE组的位置。
其中, 干扰测量指示信息是网络侧设备 10通过位图方式确定的; 或 干扰测量指示信息是网络侧设备 10根据第一 RE组的编号确定的, 比如 直接通知终端具体第一 RE组的编号, 需要终端在第 n个 RE组上进行测量干 扰, 则可以直接将 n通知终端; 或
干扰测量指示信息是网络侧设备 10根据第一 RE组的配置信息确定的; 或
干扰测量指示信息是网络侧设备 10根据第一 RE组的配置信息和第一 RE 组对应的虚拟小区标识确定的。
如果干扰测量指示信息是网络侧设备 10通过位图方式确定的; 或干扰测 量指示信息是网络侧设备根据第一 RE组的编号确定的, 则网络侧设备 10可 以向终端 20发送 RE组集合中每个 RE组的配置信息或向终端 20发送第一 RE组的配置信息,然后根据每个 RE组的位置确定对应的干扰测量指示信息。 网络侧设备 10也可以向终端 10直接发送第一 RE组的配置信息 ,从而更加便 于终端 10确定第一 RE组的位置, 终端 10则直接接收第一 RE组的配置信息 进行第一 RE组的位置确定。
比如干扰测量指示信息是网络侧设备 10通过位图方式确定的,按照图 8, 一共有 6个 RE组, 这就需要 6比特干扰测量指示信息。 其中第 3组是第一 RE组, "0"代表对应的 RE组不是第一 RE组, "1"代表对应的 RE组是第一 RE组, 则干扰测量指示信息是 {0, 0, 0, 1, 0, 0} , 其中每个比特位对应一个 RE 如果其中的第 0组 RE是小区 1的测量导频所占用的 RE, 会由其他的信 令通知。 因此发给终端的干扰测量信息可以将第 0组对应的比特去掉, 压缩 为 5比特, 即 {0, 0, 1, 0, 0} , 其中第 1个比特对应第 1组, 第 2个比特对应第 2组, 依次类推。
相应的, 终端 20根据接收来自网络侧设备 10的 RE组集合中所有 RE组 的配置信息, 根据位图方式确定第一 RE组, 从 RE组的配置信息中, 确定第 一 RE组的配置信息。
具体的, 终端 20在收到 {0, 0, 0, 1, 0, 0}后, 从所有 RE组中查找对应的 RE组, 确定第 3组对应 "1" , 就知道第 3组是第一 RE组, 然后从 RE组集 合中所有 RE组的配置信息中查找第 3组的配置信息,并根据找到的配置信息 确定第一 RE组的周期、 子帧偏移以及在子帧中的位置。
比如干扰测量指示信息是网络侧设备 10通过位图方式确定的,按照图 9, RE组集合中一共有 3个 RE组, 这就需要 3比特干扰测量指示信息。 小区 1 中第 3组是第一 RE组, "0" 代表对应的 RE组不是第一 RE组, "Γ 代表对 应的 RE组是第一 RE组, 则干扰测量指示信息是 {0, 0, 1} , 其中每个比特位 对应一个 RE组,具体对应方式可以在协议中规定或者有网络侧和终端侧协商 确定。 如果网络侧设备 10向终端发送 RE组集合中所有 RE组的配置信息, 则 RE组集合内的 RE组需要按确定的顺序编号。
相应的, 终端 20接收来自网络侧设备 10的 RE组集合中所有 RE组的配 置信息, 根据位图方式从 RE组集合中确定第一 RE组, 从收到的 RE组集合 中所有 RE组的配置信息中, 确定第一 RE组的配置信息。
具体的, 终端 20在收到 {0, 0, 1}后, 从 RE组集合中查找对应的 RE组, 确定第 3组对应 "1" , 就知道 3组是第一 RE组, 然后从收到的 RE组集合中 所有 RE组的配置信息中查找第 3组的配置信息,并根据找到的配置信息确定 第一 RE组的周期、 子帧偏移以及在子帧中的位置。
位图信息或者 RE组的编号信息可以通过高层信令发送给终端,或者通过 物理层信令发送给终端。
如果干扰测量指示信息是网络侧设备 10根据第一 RE组的配置信息确定 的 (即将第一 RE组的配置信息作为干扰测量指示信息), 或根据第一 RE组 的配置信息和第一 RE组对应的虚拟小区标识确定的 (即将第一 RE组的配置 信息和第一 RE组对应的虚拟小区标识作为干扰测量指示信息 ),由于第一 RE 组的配置信息会发送给终端 20, 所以不需要向终端 20发送 RE组集合中每个 RE组的配置信息。 相应的,终端 20在单独收到第一 RE组的配置信息 (或单独收到第一 RE 组的配置信息和第一 RE组对应的虚拟小区标识)后, 就知道配置信息对应的 RE组是第一 RE组, 并根据配置信息确定第一 RE组的位置。
需要说明的是, 本发明实施例的干扰测量指示信息并不局限于上面四种, 其他能够使终端确定第一 RE组的配置信息的内容都可以作为本发明实施例 的干扰测量指示信息。
如果网络侧设备 10需要向终端 20发送测量集合信息和干扰测量指示信 息, 比如发送只包括每个第二 RE组的配置信息和每个第二 RE组对应的小区 的小区标识的测量集合信息和干扰测量指示信息, 这时可以将测量集合信息 和干扰测量指示信息一起发送, 也可以分别发送。
在实施中, 网络侧设备 10可以不管釆用什么方式, 都可以向终端 20发 送 RE组集合中每个 RE组的配置信息或只发送第一 RE组的配置信息。
其中, 配置信息中如果包含子帧中的位置信息, 则位置信息也可以通过 位图方式确定。 比如按照图 8, —共有 6组, 这就需要 6比特位置信息。 假设 第 1组和第 2组是静默 RE组, "0" 代表对应的 RE组不是静默 RE组, "1" 代表对应的 RE组是静默 RE组, 则位置信息是 {0, 1, 1, 0, 0, 0} , 其中每个比 协商确定。
需要说明的是, 除了位图方式, 其他能够确定位置的信息也可以作为本 发明实施例的位置信息, 比如编号信息等。
在具体实施中,网络侧设备 10在确定终端 20需要在第一 RE组上进行干 扰测量后, 根据确定的第一 RE组的配置信息生成第一干扰通知信息。
如果网络侧设备 10在确定终端 20不需要在第一 RE组上进行干扰测量后 确定第二干扰通知信息, 向终端发送第二干扰通知信息, 指示终端根据 CRS 和 /或测量导频进行干扰测量。
比如: 第二 RE组占用了所有可能的 RE组, 无法找到合适的 RE组让终 端去估计干扰; 或 为了控制开销, 因为引入额外的第一 RE组会增加开销; 或
确定终端根据 CRS和 /或测量导频可以准确的估计干扰。
其中, 第二干扰通知信息是网络侧设备 10通过位图方式确定的; 或 第二干扰通知信息网络侧设备 10根据虚拟小区标识确定的。
如果第二干扰通知信息是网络侧设备 10通过位图方式确定的, 则可以利 用上面描述的干扰测量指示信息。 具体的, 可以用 2比特确定, 假设 2比特 的第 1比特对应 CRS , 第 2比特对应测量导频, "0" 代表否, "1" 代表否, 如果需要终端根据 CRS进行干扰测量, 则 2比特是 10; 如果需要终端根据测 量导频进行干扰测量, 则 2比特是 01 ; 如果需要终端根据 CRS (公共导频) 和测量导频进行干扰测量, 则 2比特是 11。
在具体实施中, 还可以在干扰测量指示信息中增加 2 比特, 这样就可以 将第一干扰通知信息和第二干扰通知信息做成一个干扰通知信息。 比如干扰 测量指示信息需要 6比特, 则可以在最后增加 2比特, 这时干 ·ί尤测量指示信 息就是 8比特。 如果确定需要终端 20在第一 RE组上进行干扰测量, 则干扰 测量指示信息的前 6比特根据位图确定,后 2比特全是 0; 如果确定不需要终 端 20在第一 RE组上进行干扰测量, 则干扰测量指示信息的前 6比特全是 0, 后 2比特根据需要确定。
相应的, 终端 20如果收到 2比特信息就知道不在第一 RE组上进行干扰 测量, 再根据具体比特值就知道釆用什么方式干扰测量; 终端 20如果收到干 扰测量指示信息, 并且干扰测量指示信息最后 2比特不全为 0, 就知道不在第 一 RE组上进行干扰测量, 再根据具体比特值就知道釆用什么方式干扰测量。
如果第二干扰通知信息是网络侧设备 10根据虚拟小区标识确定的, 则可 以直接发送一个对应的虚拟小区标识, 比如 CRS对应虚拟小区标识 Α, 测量 导频对应虚拟小区标识 Β, 如果收到 Α, 则知道釆用 CRS进行干扰测量; 如 果收到 Β, 则知道釆用测量导频进行干扰测量; 如果收到 Α和 Β, 则知道釆 用 CRS和测量导频进行干扰测量。
其中, 网络侧设备 10向终端 20发送的所有信息都可以通过高层信令(比 如 RRC信令)发送。
终端 20在确定的第一 RE组上进行干扰测量时, 可以确定在第一 RE组 上的平均接收功率值, 并将确定的平均功率值作为干扰估计值。
本发明实施例的网络侧设备 10可以是基站(比如宏基站, 演进基站、 家 庭基站等), 也可以是 RN (中继)设备, 还可以是其它网络侧设备。
基于同一发明构思, 本发明实施例中还提供了两种测量干扰的方法、 网 络侧设备及终端, 由于这些方法和设备解决问题的原理与本发明实施例测量 干扰的系统相似, 因此这些方法和设备的实施可以参见系统的实施, 重复之 处不再赘述。
如图 3所示, 本发明实施例的网络侧设备包括: 配置信息确定模块 100、 生成模块 110和发送模块 120。
配置信息确定模块 100 ,用于确定进行干扰测量的第一 RE组的配置信息。 生成模块 110, 用于根据配置信息确定模块 100确定的第一 RE组的配置 信息生成第一干扰通知信息。
发送模块 120, 用于向终端发送生成模块 110生成的第一干扰通知信息, 用于指示终端根据第一干扰通知信息确定第一 RE组, 并在确定的第一 RE组 上进行干扰测量。
其中, 生成模块 110确定测量集合信息, 将确定的测量集合信息作为第 一干扰通知信息, 其中, 所述测量集合信息包括每个第二 RE组的配置信息和 每个第二 RE组对应的小区的小区标识, 以及每个第一 RE组的配置信息和每 个第一 RE组对应的虚拟小区标识, 或所述测量集合信息只包括每个第二 RE 组的配置信息和每个第二 RE组对应的小区的小区标识;
其中, 第二 RE组是测量邻小区信道所使用的 RE组。
当干扰测量指示信息是网络侧设备通过位图方式确定的, 或干扰测量指 示信息是网络侧设备根据第一 RE组的编号确定的时, 该发送模块还用于: 向 终端发送第一 RE组的配置信息。
如果测量集合信息中只包括每个第二 RE组的配置信息和每个第二 RE组 对应的小区的小区标识;
本发明实施例的网络侧设备还进一步包括: 第一通知模块 130。
第一通知模块 130,用于向终端发送 RE组集合中每个 RE组的配置信息。 其中, 生成模块 110根据配置信息和干扰测量指示信息的对应关系, 确 定第一 RE组的配置信息对应的干扰测量指示信息,将确定的干扰测量指示信 息作为第一干扰通知信息。
干扰测量指示信息是生成模块 110通过位图方式确定的; 或
干扰测量指示信息是生成模块 110根据第一 RE组的配置信息确定的;或 干扰测量指示信息是生成模块 110根据第一 RE组的编号确定的; 或 干扰测量指示信息是生成模块 110根据第一 RE组的配置信息和第一 RE 组对应的虚拟小区标识确定的。
如果干扰测量指示信息是生成模块 110通过位图方式确定的, 或干扰测 量指示信息是生成模块 110根据第一 RE组的编号确定的;
本发明实施例的网络侧设备还进一步包括: 第二通知模块 140。
第二通知模块 140,用于向终端发送 RE组集合中每个 RE组的配置信息; 其中, RE组集合由第一 RE组和第二 RE组组成。
生成模块 110还可以在确定终端需要在第一 RE组上进行干扰测量后,根 据确定的第一 RE组的配置信息生成第一干扰通知信息。
如果生成模块 110确定终端不需要在第一 RE组上进行干扰测量,则生成 第二干扰通知信息; 相应的, 发送模块 120 向终端发送第二干扰通知信息, 指示终端根据 CRS和 /或测量导频进行干扰测量。
如图 4所示, 本发明实施例的终端包括: 位置确定模块 200和测量模块
210。
位置确定模块 200, 用于根据收到的来自网络侧设备的第一干扰通知信 息, 确定进行干扰测量的第一 RE组的位置。
测量模块 210, 用于在位置确定模块 200确定的第一 RE组上进行干扰测 量。 如果第一干扰通知信息是包括每个第二 RE组的配置信息和每个第二 RE 组对应的小区的小区标识, 以及每个第一 RE组的配置信息和每个第一 RE组 对应的虚拟小区标识的测量集合信息,其中第二 RE组是测量邻小区信道所使 用的 RE组;
位置确定模块 200根据第一 RE组对应的虚拟小区标识,确定测量集合信 息包括的第一 RE组的配置信息, 根据确定的配置信息, 确定第一 RE组的位 置。
如果第一干扰通知信息是只包括每个第二 RE组的配置信息和每个第二 RE组对应的小区的小区标识的测量集合信息, 其中第二 RE组是测量邻小区 信道所使用的 RE组;
位置确定模块 200接收来自网络侧设备的的 RE组集合中每个 RE组的配 置信息, 从 RE组集合中的所有 RE组的配置信息中查找非第二 RE组, 将查 找到的 RE组作为第一 RE组, 并从收到的 RE组集合中确定第一 RE组对应 的配置信息, 根据确定的配置信息, 确定第一 RE组的位置, 其中 RE组集合 由所有静默的 RE组组成。
如果第一干扰通知信息是干扰测量指示信息;
位置确定模块 200根据干扰测量指示信息确定第一 RE组的配置信息,根 据确定的配置信息, 确定第一 RE组的位置。
如果干扰测量指示信息是网络侧设备通过位图方式确定的,
位置确定模块 200接收来自网络侧设备的 RE组集合中所有 RE组的配置 信息, 根据位图方式从所有 RE组中确定第一 RE组, 从收到的 RE组集合中 所有 RE组的配置信息中确定第一 RE组的配置信息;
如果干扰测量指示信息是网络侧设备根据第一 RE组的编号确定的,位置 确定模块 200接收来自网络侧设备的 RE组集合中所有 RE组的配置信息, 根 据编号方式从 RE组集合中所有 RE组中确定第一 RE组, 从收到的 RE组集 合中所有 RE组的配置信息中, 确定第一 RE组的配置信息;
其中, RE组集合由第一 RE组和第二 RE组组成。 当干扰测量指示信息是所述网络侧设备通过位图方式确定的, 或干扰测 量指示信息是所述网络侧设备根据第一 RE组的编号确定的时;
位置确定模块 200还可以具体用于:接收网络侧发送的第一 RE组的配置 信息。
其中, 测量模块 210确定在第一 RE组上的平均接收功率值, 并将确定的 平均功率值作为干 4尤估计值。
如图 5所示, 本发明实施例第一种测量干扰的方法包括下列步骤: 步骤 501、 网络侧设备确定进行干扰测量的第一 RE组的配置信息。
步骤 502、 网络侧设备根据确定的第一 RE组的配置信息生成第一干扰通 知信息, 向终端发送第一干扰通知信息, 用于指示终端根据第一干扰通知信 息确定第一 RE组, 并在确定的第一 RE组上进行干扰测量。
其中, 每个子帧有多个 RE, 可以从所有 RE中选择多个 RE, 并划分成多 个 RE组。 具体的分组情况可以在协议中或网络侧和终端侧协商确定。
在具体实施中, 可以根据需要对划分的多个 RE组进行更新。 具体更新后 的分组情况可以在协议中确定或网络侧和终端侧之间协商确定。
这里的 RE组可以包括或者不包括服务小区的测量导频占用的 RE。
然后网络侧设备 10从划分出来的 RE组中选择多个需要静默的 ^£组(即 背景技术中的 MUTING RE组成的组), 形成 RE组集合, 从 RE组集合中再 选择至少一组 RE作为第一 RE组, 也就是说, RE组集合由所有静默的 RE 组组成。
RE组集合中 RE组的数量可以多于终端的协作传输小区的导频占用的 RE 组数量。
具体的, 网络侧设备根据相邻小区的 RE组集合的位置或根据终端的位 置, 或随机选择, 确定进行干扰测量的第一 RE组。
在确定了第一 RE组后, 就可以确定每个第一 RE组的配置信息。
RE组的配置信息包括但不限于下列信息中的一种或多种:
天线端口数目、 导频模式、 导频发送周期、 子帧偏移、 RE组内 RE的数 目、 周期、 在子帧内的位置。
步骤 502中,网络侧设备根据确定的第一 RE组的配置信息生成第一干扰 通知信息的方式有很多种, 下面列举几种:
方式一、 网络侧设备确定测量集合信息, 将确定的测量集合信息作为第 一干 4尤通知信息。
由于终端要在第二 RE组上进行小区的信道状态信息测量, 即第二 RE组 是测量邻小区信道所使用的 RE组, 不同的第二 RE组对应的小区不同, 所以 可以将第二 RE组对应的配置信息以及对应小区的小区标识置于测量集合信 息中; 而第一 RE组也有配置信息, 但是没有对应的小区, 所以可以用虚拟小 区标识作为第一 RE组对应的小区标识, 比如 LTE共定义了 504个物理层小 区标识, 需要 9比特标识, 这样 504 ~ 511的标识可以作为虚拟小区标识, 然 后将第一 RE组的配置信息和对应的虚拟小区标识置于测量集合信息中。也就 是说, 测量集合信息包括 RE组集合中每个第二 RE组的配置信息和每个第二 RE组对应的小区的小区标识 ,以及每个第一 RE组的配置信息和每个第一 RE 组对应的虚拟 d、区标识。
测量集合信息还可以没有每个第一 RE组的配置信息和每个第一 RE组对 应的虚拟小区标识 , 只包括每个第二 RE组的配置信息和每个第二 RE组对应 的小区的小区标识。这样就可以隐式通知终端第一 RE组的配置信息,但是应 用隐式通知之前, 网络侧设备需要向终端发送 RE组集合中每个 RE组的配置 信息。
方式二、 网络侧设备据配置信息和干扰测量指示信息的对应关系, 确定 第一 RE组的配置信息对应的干扰测量指示信息,将确定的干扰测量指示信息 作为第一干扰通知信息。
其中, 干扰测量指示信息是网络侧设备通过位图方式确定的; 或 干扰测量指示信息是网络侧设备根据第一 RE组的编号确定的; 或 干扰测量指示信息是网络侧设备根据第一 RE组的配置信息确定的; 或 干扰测量指示信息是网络侧设备根据第一 RE组的配置信息和第一 RE组 对应的虚拟 d、区标识确定的。
如果干扰测量指示信息是网络侧设备通过位图方式确定的; 或干扰测量 指示信息是网络侧设备根据第一 RE组的编号确定的,则网络侧设备可以向终 端发送 RE组集合中每个 RE组的配置信息或向终端 20发送第一 RE组的配置 信息,, 然后根据每个 RE组的位置确定对应的干扰测量指示信息。
如果干扰测量指示信息是网络侧设备根据第一 RE组的配置信息确定的, 或根据第一 RE组的配置信息和第一 RE组对应的虚拟小区标识确定的, 由于 第一 RE组的配置信息会发送给终端, 所以不需要向终端发送 RE组集合中每 个 RE组的配置信息。
需要说明的是, 本发明实施例的干扰测量指示信息并不局限于上面四种, 其他能够使终端确定第一 RE组的配置信息的内容都可以作为本发明实施例 的干扰测量指示信息。
如果网络侧设备需要向终端发送测量集合信息和干扰测量指示信息, 比 如发送只包括每个第二 RE组的配置信息和每个第二 RE组对应的小区的小区 标识的测量集合信息和干扰测量指示信息, 这时可以将测量集合信息和干扰 测量指示信息一起发送, 也可以分别发送。
在实施中, 网络侧设备可以不管釆用什么方式, 都可以向终端发送 RE组 集合中每个 RE组的配置信息或只发送第一 RE组的配置信息。
其中, 配置信息中如果包含在子帧中的位置信息, 则位置信息也可以通 过位图方式确定。
在具体实施中,网络侧设备在确定终端需要在第一 RE组上进行干扰测量 后, 根据确定的第一 RE组的配置信息生成第一干扰通知信息。
如果网络侧设备在确定终端不需要在第一 RE组上进行干扰测量后确定 第二干扰通知信息, 向终端发送第二干扰通知信息, 指示终端根据 CRS和 / 或测量导频进行干扰测量。
比如: 第二 RE组占用了所有可能的 RE组, 无法找到合适的 RE组让终 端去估计干扰; 或 为了控制开销, 因为引入额外的第一 RE组会增加开销; 或
确定终端根据 CRS和 /或测量导频可以准确的估计干扰。
其中, 第二干扰通知信息是网络侧设备通过位图方式确定的; 或 第二干扰通知信息网络侧设备根据虚拟 d、区标识确定的。
如果第二干扰通知信息是网络侧设备通过位图方式确定的, 则可以利用 上面描述的干扰测量指示信息。
在具体实施中, 还可以在干扰测量指示信息中增加 2 比特, 这样就可以 将第一干扰通知信息和第二干扰通知信息做成一个干扰通知信息。 比如干扰 测量指示信息需要 6比特, 则可以在最后增加 2比特, 这时干 ·ί尤测量指示信 息就是 8比特。 如果确定需要终端 20在第一 RE组上进行干扰测量, 则干扰 测量指示信息的前 6比特根据位图确定,后 2比特全是 0; 如果确定不需要终 端 20在第一 RE组上进行干扰测量, 则干扰测量指示信息的前 6比特全是 0, 后 2比特根据需要确定。
如果第二干扰通知信息是网络侧设备根据虚拟小区标识确定的, 则可以 直接发送一个对应的虚拟 d、区标识。
其中,网络侧设备向终端发送的所有信息都可以通过高层信令(比如 RRC 信令)发送。
本发明实施例的网络侧设备可以是基站 (比如宏基站, 演进基站、 家庭 基站等), 也可以是 RN (中继)设备, 还可以是其它网络侧设备。
如图 6所示, 本发明实施例第二种测量干扰的方法包括下列步骤: 步骤 601、终端根据收到的来自网络侧设备的第一干扰通知信息, 确定进 行干扰测量的第一 RE组的位置。
步骤 602、 终端在确定的第一 RE组上进行干扰测量。
如果第一干扰通知信息是包括每个第二 RE组的配置信息和每个第二 RE 组对应的小区的小区标识, 以及每个第一 RE组的配置信息和每个第一 RE组 对应的虚拟小区标识的测量集合信息,其中第二 RE组是测量邻小区信道所使 用的 RE组; 步骤 601中, 终端在收到第一干扰通知信息后,根据第一 RE组对应的虚 拟小区标识,确定测量集合信息包括的第一 RE组的配置信息,根据确定的配 置信息, 确定第一 RE组的位置。
具体的, 终端查看对应的小区标识, 找到虚拟小区标识对应的配置信息, 将这个配置信息作为第一 RE组的配置信息,然后根据配置信息就可以知道第 一 RE组的周期, 子帧偏移以及其在子帧中的位置。
如果第一干扰通知信息是只包括每个第二 RE组的配置信息和每个第二 RE组对应的小区的小区标识的测量集合信息, 其中 RE组集合由第一 RE组 和第二 RE组组成;
步骤 601之前, 终端接收来自网络侧设备的 RE组集合中每个 RE组的配 置信息, 从而就知道 RE组集合中所有 RE组的配置信息, 然后从 RE组集合 中, 查找所有非第二 RE组(即属于 RE组集合, 但不是第二 RE组), 将查找 到的 RE组作为第一 RE组, 并从 RE组集合中所有 RE组的配置信息中确定 第一 RE组对应的配置信息,最后根据确定的配置信息确定第一 RE组的周期, 子帧偏移以及其在子帧中的位置。
如果第一干扰通知信息是干扰测量指示信息;
步骤 601中, 终端根据干扰测量指示信息确定第一 RE组的配置信息,根 据确定的配置信息确定第一 RE组的位置。
其中, 干扰测量指示信息是网络侧设备通过位图方式确定的; 或 干扰测量指示信息是网络侧设备根据第一 RE组的编号确定的,比如直接 通知终端具体第一 RE组的编号, 需要终端在第 n个 RE组上进行测量干扰, 则可以直接将 n通知终端; 或
干扰测量指示信息是网络侧设备根据第一 RE组的配置信息确定的; 或 干扰测量指示信息是网络侧设备根据第一 RE组的配置信息和第一 RE组 对应的虚拟 d、区标识确定的。
如果干扰测量指示信息是网络侧设备 10通过位图方式确定的; 或干扰测 量指示信息是网络侧设备根据第一 RE组的编号确定的。 步骤 601之前, 终端 接收来自网络侧设备的 RE组集合中所有 RE组的配置信息或第一 RE组的配 置信息, 步骤 601中, 终端根据位图方式或编号, 确定第一 RE组, 从收到的 RE组的配置信息中, 确定第一 RE组的配置信息。
如果干扰测量指示信息是网络侧设备 10根据第一 RE组的配置信息确定 的, 或根据第一 RE组的配置信息和第一 RE组对应的虚拟小区标识确定的, 步骤 601中, 终端在单独收到第一 RE组的配置信息(或单独收到第一 RE组 的配置信息和第一 RE组对应的虚拟小区标识)后, 就知道配置信息对应的 RE组是第一 RE组, 并根据配置信息确定第一 RE组在子帧中的位置。
需要说明的是, 本发明实施例的干扰测量指示信息并不局限于上面四种, 其他能够使终端确定第一 RE组的配置信息的内容都可以作为本发明实施例 的干扰测量指示信息。
步骤 602中, 终端在确定的第一 RE组上进行干扰测量时, 可以确定在第 一 RE组上的平均接收功率值, 并将确定的平均功率值作为干扰估计值。
其中, 本发明实施里的方法还包括:
如果终端收到来自网络侧的第二干扰通知信息, 则根据第二干扰通知信 息的指示根据 CRS和 /或测量导频进行干扰测量。
如果第二干扰通知信息是网络侧设备 10通过位图方式确定的, 假设 2比 特的第 1比特对应 CRS , 第 2比特对应测量导频, "0"代表否, "Γ代表否, 如果 2比特是 10, 则确定根据 CRS进行干扰测量; 如果 2比特是 01 , 则确定 根据测量导频进行干扰测量; 如果 2比特是 11 , 则确定根据 CRS和测量导频 进行干扰测量。
在具体实施中, 还可以在干扰测量指示信息中增加 2 比特, 这样就可以 将第一干扰通知信息和第二干扰通知信息做成一个干扰通知信息。 比如干扰 测量指示信息需要 6比特, 则可以在最后增加 2比特, 这时干 ·ί尤测量指示信 息就是 8比特。 如果终端收到的干扰测量指示信息的前 6比特不是全 "0" , 后 2比特全是 " 0" , 则确定需要在第一 RE组上进行干扰测量; 如果终端收到 的干扰测量指示信息的前 6比特是全 "0" , 后 2比特不是全 "0" , 则确定不 需要在第一 RE组上进行干扰测量, 进一步根据后 2比特确定测量方式。
如果第二干扰通知信息是网络侧设备根据虚拟小区标识确定的, 则终端 可以才艮据对应的虚拟小区标识确定测量方式,比如 CRS对应虚拟小区标识 A, 测量导频对应虚拟小区标识 B,如果收到 A, 则知道釆用 CRS进行干扰测量; 如果收到 B, 则知道釆用测量导频进行干扰测量; 如果收到 A和 B, 则知道 釆用 CRS和测量导频进行干扰测量。
其中, 图 5和图 6可以合成一个流程, 形成一个新的测量干扰的方法, 即现执行步骤 501和 502, 然后再执行步骤 601和 602。
如图 11所示, 本发明实施例利用 MUTING RE进行干扰的方法包括下列 步骤:
步骤 1101、 基站之间通过信息交互确定个自的 MUTING RE配置信息。 步骤 1102、基站通过广播或 RRC信令将每个 MUTING RE组的配置信息 通知给每个终端。
其中, 包括 MUTING RE的数目和位置等; MUTING RE的位置信息包括 周期, 子帧偏移, 子帧内的位置等; 将 MUTING RE的位置信息通知给终端 的主要目的是使得终端可以正确的计算速率匹配的参数, 从而实现正确的解 调。
步骤 1103、基站确定每个 MUTING RE组中进行干扰测量的 MUTING RE 组。
步骤 1104、 基站通知终端进行干扰测量的 MUTING RE组。
步骤 1105、 终端确定进行干扰测量的 MUTING RE组, 并确定进行干扰 测量的 MUTING RE组的配置信息。
步骤 1106、 终端根据根据进行干扰测量的 MUTING RE组的配置信息, 确定进行干扰测量的 MUTING RE组在子帧中的位置。
步骤 1107、 终端估计进行干扰测量的 MUTING RE组上的平均接收功率 值, 并将平均接收功率值作为干扰估计值。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或 计算机程序产品。 因此, 本发明可釆用完全硬件实施例、 完全软件实施例、 或结合软件和硬件方面的实施例的形式。 而且, 本发明可釆用在一个或多个 其中包含有计算机可用程序代码的计算机可用存储介质 (包括但不限于磁盘 存储器、 CD-ROM、 光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序产 品的流程图和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图 和 /或方框图中的每一流程和 /或方框、 以及流程图和 /或方框图中的流程 和 /或方框的结合。 可提供这些计算机程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器, 使得通 过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流 程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设 备以特定方式工作的计算机可读存储器中, 使得存储在该计算机可读存储器 中的指令产生包括指令装置的制造品, 该指令装置实现在流程图一个流程或 多个流程和 /或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上, 使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的 处理, 从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图 一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的步 骤。
尽管已描述了本发明的优选实施例, 但本领域内的技术人员一旦得知了 基本创造性概念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权 利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
从上述实施例中可以看出: 由于通知终端在第一 RE组上进行干扰测量, 从而在釆用 RE MITTING方案时, 提高了测量的干扰精度。
进一步的, 如果终端利用本发明实施例确定的干扰确定 CQI, 还可以提 高 CQI的精度, 进而使基站能够更好的实现链路自适应, 从而提高数据传输 的效率。 发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权利要 求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种测量干扰的方法, 其特征在于, 该方法包括:
网络侧设备确定进行干扰测量的第一资源单元 RE组的配置信息; 所述网络侧设备根据所述第一 RE组的配置信息生成第一干扰通知信息, 并向终端发送所述第一干扰通知信息, 用于指示所述终端根据所述第一干扰 通知信息确定第一 RE组, 并在确定的第一 RE组上进行干扰测量。
2、 如权利要求 1所述的方法, 其特征在于, 所述网络侧设备生成第一干 扰通知信息包括:
所述网络侧设备确定测量集合信息, 将确定的测量集合信息作为第一干 4尤通知信息;
其中, 所述测量集合信息包括每个第二 RE组的配置信息和每个第二 RE 组对应的小区的小区标识, 以及每个第一 RE组的配置信息和每个第一 RE组 对应的虚拟小区标识,或所述测量集合信息只包括每个第二 RE组的配置信息 和每个第二 RE组对应的小区的小区标识;
其中, 所述第二 RE组是测量邻小区信道所使用的 RE组。
3、 如权利要求 2所述的方法, 其特征在于, 当所述测量集合信息中只包 括每个第二 RE组的配置信息和每个第二 RE组对应的小区的小区标识时, 所 述网络侧设备生成第一干扰通知信息之前还包括:
所述网络侧设备向终端发送 RE组集合中每个 RE组的配置信息; 其中, 所述 RE组集合由所有静默的 RE组组成。
4、 如权利要求 1所述的方法, 其特征在于, 所述网络侧设备生成第一干 扰通知信息包括:
所述网络侧设备根据配置信息和干扰测量指示信息的对应关系, 确定第 一 RE组的配置信息对应的干扰测量指示信息,将确定的干扰测量指示信息作 为第一干扰通知信息。
5、 如权利要求 4所述的方法, 其特征在于, 所述干扰测量指示信息是所 述网络侧设备通过位图方式确定的; 或
所述干扰测量指示信息是所述网络侧设备根据第一 RE组的配置信息确 定的; 或
所述干扰测量指示信息是所述网络侧设备根据第一 RE组的编号确定的。
6、 如权利要求 4所述的方法, 其特征在于, 所述干扰测量指示信息是所 述网络侧设备根据第一 RE组的配置信息和第一 RE组对应的虚拟小区标识确 定的。
7、 如权利要求 4所述的方法, 其特征在于, 当所述干扰测量指示信息是 所述网络侧设备通过位图方式确定的, 或所述干扰测量指示信息是所述网络 侧设备根据第一 RE组的编号确定的时,所述网络侧设备生成第一干扰通知信 息之前还包括:
所述网络侧设备向终端发送 RE组集合中每个 RE组的配置信息; 其中, 所述 RE组集合由所有静默的 RE组组成。
8、 如权利要求 5所述的方法, 其特征在于, 当所述干扰测量指示信息是 所述网络侧设备通过位图方式确定的, 或所述干扰测量指示信息是所述网络 侧设备根据第一 RE组的编号确定的时, 还包括:
所述网络侧设备向所述终端发送第一 RE组的配置信息。
9、 如权利要求 1-8任一所述的方法, 其特征在于, 所述 RE组的配置信 息中包括下列之一或组合:
天线端口数目、 导频模式、 导频发送周期、 子帧偏移、 RE组内 RE的数 目、 周期、 子帧偏移、 在子帧内的位置。
10、 如权利要求 1 所述的方法, 其特征在于, 所述网络侧设备生成第一 干扰通知信息之前还包括:
所述网络侧设备确定终端需要在第一 RE组上进行干扰测量。
11、 如权利要求 10所述的方法, 其特征在于, 该方法还包括:
所述网络侧设备在确定终端不需要在第一 RE组上进行干扰测量后确定 第二干扰通知信息, 向终端发送第二干扰通知信息, 指示所述终端根据公共 导频 CRS和 /或测量导频进行干扰测量。
12、 如权利要求 11所述的方法, 其特征在于, 所述第二干扰通知信息是 所述网络侧设备通过位图方式确定的; 或
所述第二干扰通知信息是所述网络侧设备根据虚拟小区标识确定的。
13、 一种测量干扰的方法, 其特征在于, 该方法包括:
终端根据收到的来自网络侧设备的第一干扰通知信息, 确定进行干扰测 量的第一 RE组的位置;
所述终端在确定的第一 RE组上进行干扰测量。
14、 如权利要求 12所述的方法, 其特征在于, 所述第一干扰通知信息是 包括每个第二 RE组的配置信息和每个第二 RE组对应的小区的小区标识, 以 及每个第一 RE组的配置信息和每个第一 RE组对应的虚拟小区标识的测量集 合信息, 其中第二 RE组是测量邻小区信道所使用的 RE组;
所述终端确定第一 RE组的位置包括:
所述终端根据第一 RE组对应的虚拟小区标识,确定所述测量集合信息包 括的第一 RE组的配置信息;
所述终端 4艮据确定的配置信息, 确定第一 RE组的位置。
15、 如权利要求 13所述的方法, 其特征在于, 当所述第一干扰通知信息 是只包括每个第二 RE组的配置信息和每个第二 RE组对应的小区的小区标识 的测量集合信息, 其中第二 RE组是测量邻小区信道所使用的 RE组时, 所述 终端确定第一 RE组的位置之前还包括:
所述终端接收来自网络侧设备的 RE组集合中每个 RE组的配置信息, 其 中 RE组集合由所有静默的 RE组组成;
所述终端确定第一 RE组的位置包括:
所述终端从 RE组集合中的所有 RE组的配置信息中查找非第二 RE组, 将查找到的 RE组作为第一 RE组, 并从收到的 RE组集合中确定第一 RE组 对应的配置信息;
所述终端 4艮据确定的配置信息, 确定第一 RE组的位置。
16、 如权利要求 13所述的方法, 其特征在于, 当所述第一干扰通知信息 是干扰测量指示信息时, 所述终端确定第一 RE组的位置包括:
所述终端根据干扰测量指示信息, 确定第一 RE组的配置信息; 所述终端 4艮据确定的配置信息, 确定第一 RE组的位置。
17、 如权利要求 16所述的方法, 其特征在于, 当所述干扰测量指示信息 是所述网络侧设备通过位图方式确定的, 或所述干扰测量指示信息是所述网 络侧设备根据第一 RE组的编号确定的时, 所述终端确定第一 RE组的位置之 前还包括:
所述终端接收来自网络侧设备的 RE组集合中所有 RE组的配置信息, 其 中 RE组集合由所有静默的 RE组组成;
所述干扰测量指示信息是所述网络侧设备通过位图方式确定的时, 所述 终端确定第一 RE组的配置信息包括:
所述终端根据位图方式从 RE组集合中所有 RE组中确定第一 RE组; 所述终端从收到的 RE组集合中所有 RE组的配置信息中, 确定第一 RE 组的配置信息。
或者
当所述干扰测量指示信息是所述网络侧设备根据第一 RE组的编号确定 的时, 所述终端确定第一 RE组的配置信息包括:
所述终端根据编号方式从 RE组集合中所有 RE组中确定第一 RE组; 所述终端从收到的 RE组集合中所有 RE组的配置信息中, 确定第一 RE 组的配置信息。
18、 如权利要求 16所述的方法, 其特征在于, 当所述干扰测量指示信息 是所述网络侧设备通过位图方式确定的, 或所述干扰测量指示信息是所述网 络侧设备根据第一 RE组的编号确定的时, 还包括:
所述终端接收所述网络侧发送的第一 RE组的配置信息。
19、 如权利要求 13-18任一所述的方法, 其特征在于, 所述 RE组的配置 信息中包括下列之一或组合: 天线端口数目、 导频模式、 导频发送周期、 子帧偏移、 RE组内 RE的数 目、 周期、 子帧偏移、 在子帧内的位置。
20、 如权利要求 13 ~ 18任一所述的方法, 其特征在于, 所述终端进行干 扰测量包括:
所述终端确定在第一 RE组上的平均接收功率值,并将确定的平均功率值 作为干扰估计值。
21、 一种网络侧设备, 其特征在于, 该网络测设备包括:
配置信息确定模块, 用于确定进行干扰测量的第一 RE组的配置信息; 生成模块, 用于根据所述第一 RE组的配置信息生成第一干扰通知信息; 发送模块, 用于向终端发送所述第一干扰通知信息, 用于指示所述终端 根据所述第一干扰通知信息确定第一 RE组, 并在确定的第一 RE组上进行干 扰测量。
22、 如权利要求 21所述的网络侧设备, 其特征在于, 所述生成模块具体 用于:
确定测量集合信息, 将确定的测量集合信息作为第一干扰通知信息; 其中, 所述测量集合信息包括每个第二 RE组的配置信息和每个第二 RE 组对应的小区的小区标识, 以及每个第一 RE组的配置信息和每个第一 RE组 对应的虚拟小区标识,或所述测量集合信息只包括每个第二 RE组的配置信息 和每个第二 RE组对应的小区的小区标识;
其中, 所述第二 RE组是测量邻小区信道所使用的 RE组。
23、 如权利要求 22所述的网络侧设备, 其特征在于, 当所述测量集合信 息中只包括每个第二 RE组的配置信息和每个第二 RE组对应的小区的小区标 识时, 所述网络侧设备还包括:
第一通知模块, 用于向终端发送 RE组集合中每个 RE组的配置信息; 其中, 所述 RE组集合由所有静默的 RE组组成。
24、 如权利要求 21所述的网络侧设备, 其特征在于, 所述生成模块具体 用于: 根据配置信息和干扰测量指示信息的对应关系,确定第一 RE组的配置信 息对应的干扰测量指示信息, 将确定的干扰测量指示信息作为第一干扰通知 信息。
25、 如权利要求 24所述的网络侧设备, 其特征在于, 所述干扰测量指示 信息是所述生成模块通过位图方式确定的; 或
所述干扰测量指示信息是所述生成模块根据第一 RE组的配置信息确定 的; 或
所述干扰测量指示信息是所述生成模块根据第一 RE组的编号确定的。
26、 如权利要求 24所述的网络侧设备, 其特征在于, 所述干扰测量指示 信息是所述生成模块根据第一 RE组的配置信息和第一 RE组对应的虚拟小区 标 i只确定的。
27、 如权利要求 25所述的网络侧设备, 其特征在于, 当所述干扰测量指 示信息是所述生成模块通过位图方式确定的, 或所述干扰测量指示信息是所 述生成模块根据第一 RE组的编号确定的时, 所述网络侧设备还包括:
第二通知模块, 用于向终端发送 RE组集合中每个 RE组的配置信息; 其中, 所述 RE组集合由所有静默的 RE组组成。
28、 如权利要求 25所述的网络侧设备, 其特征在于, 当所述干扰测量指 示信息是所述网络侧设备通过位图方式确定的, 或所述干扰测量指示信息是 所述网络侧设备根据第一 RE组的编号确定的时, 所述发送模块还用于: 向所述终端发送第一 RE组的配置信息。
29、 如权利要求 21所述的网络侧设备, 其特征在于, 所述生成模块还用 于:
在确定终端需要在第一 RE组上进行干扰测量后, 根据确定的第一 RE组 的配置信息生成第一干扰通知信息。
30、 如权利要求 29所述的网络侧设备, 其特征在于, 所述生成模块还用 于:
在确定终端不需要在第一 RE组上进行干扰测量后生成第二干扰通知信 息;
所述发送模块还用于:
向终端发送第二干扰通知信息, 指示所述终端根据 CRS和 /或测量导频 进行干扰测量。
31、 一种用户终端, 其特征在于, 该用户终端包括:
位置确定模块, 用于根据收到的来自网络侧设备的第一干扰通知信息, 确定进行干扰测量的第一 RE组的位置;
测量模块, 用于在确定的第一 RE组上进行干扰测量。
32、 如权利要求 31所述的用户终端, 其特征在于, 所述第一干扰通知信 息包括每个第二 RE组的配置信息和每个第二 RE组对应的小区的小区标识, 以及每个第一 RE组的配置信息和每个第一 RE组对应的虚拟 d、区标识的测量 集合信息, 其中第二 RE组是测量邻小区信道所使用的 RE组;
所述位置确定模块具体用于:
根据第一 RE组对应的虚拟小区标识,确定所述测量集合信息包括的第一 RE组的配置信息, 才艮据确定的配置信息, 确定第一 RE组的位置。
33、 如权利要求 31所述的用户终端, 其特征在于, 所述第一干扰通知信 息是只包括每个第二 RE组的配置信息和每个第二 RE组对应的小区的小区标 识的测量集合信息, 其中第二 RE组是测量邻小区信道所使用的 RE组; 所述位置确定模块具体用于:
接收来自网络侧设备的的 RE组集合中每个 RE组的配置信息, 从 RE组 集合中的所有 RE组的配置信息中查找非第二 RE组, 将查找到的 RE组作为 第一 RE组, 并从收到的 RE组集合中确定第一 RE组对应的配置信息, 根据 确定的配置信息, 确定第一 RE组的位置;
其中, RE组集合由所有静默的 RE组组成。
34、 如权利要求 31所述的用户终端, 其特征在于, 所述第一干扰通知信 息是干扰测量指示信息;
所述位置确定模块具体用于: 根据干扰测量指示信息确定第一 RE组的配置信息, 根据确定的配置信 息, 确定第一 RE组的位置。
35、 如权利要求 34所述的用户终端, 其特征在于, 当所述干扰测量指示 信息是所述网络侧设备通过位图方式确定的时, 所述位置确定模块具体用于: 接收来自网络侧设备的 RE组集合中所有 RE组的配置信息, 根据位图方 式从所有 RE组中确定第一 RE组, 从收到的 RE组集合中所有 RE组的配置 信息中确定第一 RE组的配置信息;
当所述干扰测量指示信息是所述网络侧设备根据第一 RE组的编号确定 的时, 所述位置确定模块具体用于: 接收来自网络侧设备的 RE组集合中所有 RE组的配置信息, 根据编号方式从 RE组集合中所有 RE组中确定第一 RE 组, 从收到的 RE组集合中所有 RE组的配置信息中, 确定第一 RE组的配置 信息;
其中, RE组集合由第一 RE组和第二 RE组组成。
36、 如权利要求 34所述的用户终端, 其特征在于, 所述干扰测量指示信 息是所述网络侧设备通过位图方式确定的, 或所述干扰测量指示信息是所述 网络侧设备根据第一 RE组的编号确定的;
所述位置确定模块具体用于:
接收所述网络侧发送的第一 RE组的配置信息。
37、 如权利要求 31 ~ 36任一所述的用户终端, 其特征在于, 所述测量模 块具体用于:
确定在第一 RE组上的平均接收功率值,并将确定的平均功率值作为干扰 估计值。
38、 一种测量干扰的系统, 其特征在于, 该系统包括:
网络侧设备, 用于确定进行干扰测量的第一 RE组的配置信息,根据所述 第一 RE组的配置信息生成第一干扰通知信息,并向终端发送所述第一干扰通 知信息;
终端, 用于根据收到的来自网络侧设备的第一干扰通知信息, 确定进行 干扰测量的第一 RE组的位置, 以及在确定的第一 RE组上进行干扰测量。
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