WO2012130014A1 - Procédé et appareil de mesure de porteuse - Google Patents

Procédé et appareil de mesure de porteuse Download PDF

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Publication number
WO2012130014A1
WO2012130014A1 PCT/CN2012/071909 CN2012071909W WO2012130014A1 WO 2012130014 A1 WO2012130014 A1 WO 2012130014A1 CN 2012071909 W CN2012071909 W CN 2012071909W WO 2012130014 A1 WO2012130014 A1 WO 2012130014A1
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WO
WIPO (PCT)
Prior art keywords
carrier
uplink
downlink subframe
subframe configuration
currently
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/071909
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English (en)
Chinese (zh)
Inventor
李亚娟
时洁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2012130014A1 publication Critical patent/WO2012130014A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Definitions

  • the present invention relates to the field of wireless communications and, more particularly, to a method and apparatus for measuring a carrier in the field of wireless communications. Background technique
  • LTE-A Long Time Evolution-Advance
  • the R10 version 10
  • CA Carrier Aggregation
  • the main idea of carrier aggregation is to aggregate multiple component carriers (CCs) into a larger bandwidth carrier to support high-speed data rates.
  • CCs component carriers
  • R10 TDD Time Division Multiplexing
  • the system bandwidth can be aggregated by up to five component carriers, but the system can only support carrier aggregation with the same uplink and downlink subframe configuration.
  • uplink and downlink subframe configurations can be set for the carrier, so that the uplink subframe or the downlink subframe is transmitted in different time slots.
  • the configuration of the seven types of uplink and downlink subframes as shown in Table 1 is supported. Which uplink and downlink subframe configuration is used to notify the user equipment (UE) by sending a message to the user equipment (UE). .
  • the downlink subframe configuration in TDD mode is shown in Table 1.
  • the uplink and downlink configuration (Uplink-downlink configuration) indicates the number of different uplink and downlink subframe configurations, D indicates the downlink subframe, U indicates the uplink subframe, S indicates the special subframe, and DL: UL indicates the downlink subframe in one frame. The ratio of the uplink subframe.
  • the RIO TDD system can support the aggregation of two carriers of configuration 1, and can also support configuration.
  • the two carriers of 2 are aggregated, but one carrier aggregation of one carrier and configuration 2 is not supported.
  • the TDD in the network adopts the same configuration, that is, a certain base station (e.g., eNB, evolved Node B, evolved base station) adopts configuration 1, and the base station in the neighboring cell around it also adopts configuration 1. Therefore, all carriers in the cell where the base station is located and its neighbor cells adopt configuration 1.
  • a certain base station e.g., eNB, evolved Node B, evolved base station
  • carrier aggregation with the same uplink and downlink subframe configuration can only be supported in the evolved version R10 of LTE, carrier aggregation with different uplink and downlink subframe configurations supported by TDD in future evolved versions of LTE (eg, R11, R12) cannot be excluded.
  • the possibility supports the aggregation of two carriers of configuration 1 and configuration 2 in a future version of LTE.
  • the uplink and downlink subframe configurations of multiple carriers may be different. In the same cell, different carriers have different uplink and downlink subframe configurations. Different carriers also have different uplink and downlink subframes between different cells. Configuration.
  • the UE When the uplink and downlink subframe configurations of the carrier are different, although the UE knows the uplink and downlink subframe configuration of the currently serving carrier (including the carrier in which the UE camps in the idle mode and the carrier from which the UE receives the service in the connected mode), However, the UE does not know the uplink and downlink subframe configuration of the carrier that is not currently providing the service, so the measurement of the carrier that is not currently served by the UE may be affected. For example, in the DRX (Discontinuous Reception) state, the UE can measure the carrier that is not currently served for the 0th subframe and the 5th subframe in each configuration mode in Table 1.
  • DRX discontinuous Reception
  • the number of required subframes is reduced, so that it takes longer to perform measurement under the premise of obtaining the same measurement accuracy, thereby shortening the time for the UE to enter sleep, which is disadvantageous for the UE to save power.
  • the UE wants to obtain the same measurement accuracy in order to shorten the measurement time, it is necessary to increase the measurement hardware resources of the UE, thereby causing the chip cost of the UE to rise.
  • the embodiments of the present invention provide a method and a device for measuring a carrier, which can accurately and quickly measure a carrier that is not currently served when the carrier has different uplink and downlink subframe configurations, thereby improving carrier measurement efficiency.
  • the embodiment of the present invention provides a method for measuring a carrier, including: receiving a control message from a base station, where the control message is used to indicate an uplink and downlink subframe configuration of a carrier that is not currently providing a service; and determining a non-current based on the control message.
  • the uplink and downlink subframe configuration of the carrier that provides the service; and the carrier that is not currently served is measured based on the uplink and downlink subframe configuration of the carrier that is not currently served.
  • an embodiment of the present invention provides an apparatus for measuring a carrier, including: a receiving module, configured to receive a control message from a base station, where the control message is used to indicate an uplink and downlink subframe configuration of a carrier that is not currently served. And a determining module, configured to determine, according to the control message, an uplink and downlink subframe configuration of a carrier that is not currently providing the service; a measurement module, configured to: use an uplink/downlink subframe configuration of a carrier that is not currently served, and a carrier that is not currently served Make measurements.
  • the uplink and downlink subframe configuration of the carrier that is not currently served by the control message may be determined, so that the Multiple downlink subframes (such as D in Table 1) are used to measure carriers that are not currently served.
  • the Multiple downlink subframes such as D in Table 1
  • the measurement of the 0th and 5th sub-frames can be used, and more sub-frame information can be used to obtain more accurate measurement results in a shorter time, thereby improving the efficiency of measuring the carrier.
  • FIG. 1 is a flow chart of a method of measuring a carrier in accordance with an embodiment of the present invention.
  • FIG. 2 is a flow chart of another method of measuring a carrier in accordance with an embodiment of the present invention.
  • FIG. 3 is a flow chart of still another method of measuring a carrier in accordance with an embodiment of the present invention.
  • FIG. 4 is a structural block diagram of an apparatus for measuring a carrier according to an embodiment of the present invention.
  • the method 100 includes: receiving, in S110, a control message from a base station, where the control message is used to indicate an uplink and downlink subframe configuration of a carrier that is not currently served; and in S120, determining, based on the control message, a non-current The uplink and downlink subframe configuration of the carrier that provides the service; in S130, the carrier that is not currently served is measured based on the uplink and downlink subframe configuration of the carrier that is not currently served.
  • the UE may receive the control message from the base station, and the control message may carry the uplink and downlink subframe configuration information of the carrier other than the carrier that provides the current service for the UE, and is used to indicate the uplink and downlink subframe configuration of the corresponding carrier.
  • the UE may obtain uplink and downlink subframe configuration information of a carrier that is not currently served according to the control message.
  • the carrier that is not currently serving the service is a carrier that does not currently provide services to the UE, and may include a carrier that is not served by the serving cell where the UE is located, and may also include a carrier of a neighboring cell that is adjacent to the serving cell.
  • the carrier that the UE camps in the idle mode or the carrier used by the UE in the connected mode belongs to the carrier currently serving, and the other carriers belong to the carrier that is not currently served.
  • the UE can determine the uplink and downlink subframe configuration of the corresponding carrier according to the uplink and downlink subframe configuration information of the carrier that is not currently served, so that the carrier can be measured by using more subframe information in the carrier.
  • the UE may determine a downlink subframe of the carrier based on an uplink and downlink subframe configuration of the carrier, so that the carrier is measured on the downlink subframes.
  • the uplink and downlink subframe configuration of the non-current serving carrier can be determined according to the uplink and downlink subframe configuration information of the carrier that is not currently served by the control message, so that more The downlink subframe is used to measure the carrier that is not currently served.
  • a special subframe such as S in Table 1
  • only the measurements made by the 0th and 5th sub-frames can use more sub-frame information to obtain more accurate measurement results in a shorter time, thereby The efficiency of measuring the carrier can be improved. And since the measurement process is still performed based on the subframe, there is no need to increase the hardware resources required for the UE measurement, and the UE chip cost is not increased.
  • a control message is received from the base station, where the control message is used to indicate an uplink and downlink subframe configuration of a carrier that is not currently providing the service.
  • the user equipment can receive system messages from base stations of the serving cell.
  • the uplink and downlink subframe configuration information of the current serving carrier of the serving cell may be carried as in the related art, and may also be extended, and then the carrier that is not currently providing the service (including other carriers and/or neighbors of the current serving cell) may be carried. Up-down subframe configuration information of the carrier of the cell.
  • the base station of the serving cell in which the UE is located may send a system message to the UE through the broadcast channel, and cause the system message to carry information related to the carrier that is not currently providing the service.
  • the carrier that is not currently providing the service includes the carrier that the UE does not camp in the idle mode, and also includes the carrier that the UE does not use in the connected mode.
  • These carriers may include other carriers in the current serving cell other than the carrier receiving the system message, and may also include carriers in the neighbor cell. These carriers may or may not have the function of carrier aggregation, so that the carriers that are not currently served may or may not be component carriers.
  • the carrier that is not currently served in the system message may be all carriers in the cell, or may be part of the carrier in the cell.
  • the uplink and downlink subframe configuration information of the carrier in the neighboring cell may be sent by the base station of the neighboring cell to the base station of the serving cell, and then sent by the base station of the serving cell to the user equipment.
  • the uplink and downlink subframe configuration information may be explicitly carried in the system message.
  • the information of whether the subframe of the specific subframe number is the uplink subframe (U) or the downlink subframe (D) is directly carried in the system message.
  • the uplink and downlink subframe configuration information may also be carried by a specific identifier or number in the system message. For example, a number in the numbers 0 to 6 of Table 1 is carried in the system message, and the sub-frame configuration information is characterized by the number.
  • the uplink and downlink subframe configuration information may be defined by an enumeration type, and each value in the enumerated type corresponds to an uplink and downlink subframe configuration manner, and the uplink and downlink are represented by carrying a value belonging to the enumerated type in the system message. Subframe configuration information. In addition, you can directly use the TDD-Config defined by the protocol to describe the TDD uplink and downlink subframe configuration information of the carrier.
  • the user equipment may receive signaling from a base station of the serving cell, and the signaling carries uplink and downlink subframe configuration information of a carrier that is not currently served.
  • the user equipment may receive radio resource control (RRC) signaling from the base station of the serving cell, and the RRC signaling may carry the uplink and downlink subframe configuration of the carrier that is not currently served in the current serving cell and the neighboring cell. information.
  • RRC radio resource control
  • the base station of the serving cell where the UE is located may send RRC signaling to the UE.
  • the uplink and downlink subframe configuration information of the non-currently provided serving carrier in the serving cell may be carried.
  • the uplink and downlink subframe configuration information of the carrier of the neighbor cell may still be transmitted by the base station of the neighbor cell to the base station of the serving cell.
  • the RRC signaling needs to be extended, a new field is added for the RRC signaling, or a reserved field in the RRC signaling is used, and the uplink and downlink subframe configuration of the non-currently provided serving carrier is carried based on the new field or the reserved field. information.
  • the manner of carrying can be referred to above.
  • the uplink and downlink subframe configuration information of the carrier for example, MAC (Media Access Control) signaling or physical layer signaling.
  • the uplink and downlink subframe configuration information of the serving cell and the non-currently served carrier of the neighboring cell may be carried in the system message or in the signaling.
  • the uplink and downlink subframe configuration information of all carriers in the neighboring cell does not need to be carried.
  • the system message or the signaling may carry the uplink and downlink subframe configuration information of the carrier that is not currently served in the serving cell; and the carrier in the neighbor cell has the same uplink and downlink subframe configuration as the carrier in the same frequency band in the serving cell.
  • the system message or signaling may not carry the uplink and downlink subframe configuration information of the carrier of the neighbor cell.
  • the system message or the signaling may only carry the uplink and downlink subframe configuration information of the carriers whose uplink and downlink subframe configurations are unknown and cannot be configured according to the carriers in the same frequency band. .
  • the system message or the signaling needs to carry the uplink and downlink subframe configuration information of the carrier that is not currently served in the serving cell, but whether the uplink and downlink subframe configuration information of the carrier in the neighboring cell needs to be carried, and the neighboring cell
  • the carrier in the medium is related to the relationship between the carriers in the serving cell.
  • the uplink and downlink subframe configuration of the specific carrier may not need to be repeated; If a specific carrier and a certain carrier of the current serving cell are in the same frequency band but have different uplink and downlink subframe configurations, the system still needs to carry the uplink and downlink of the specific carrier in the system message. If the specific carrier of the neighboring cell and all the carriers of the current serving cell are not in the same frequency band, the uplink and downlink subframe configuration of the specific carrier needs to be carried.
  • the system message or signaling may carry uplink and downlink subframe configuration information of a carrier that is not currently serving in the serving cell.
  • the uplink and downlink subframe configuration of the carrier that is not currently served in the serving cell may be configured.
  • the information determines the uplink and downlink subframe configuration of the carrier in the neighboring cell that is not currently providing the service.
  • the system message or the signaling may not carry the uplink and downlink subframe configuration information of the specific carrier, but directly according to The carrier configured in the same uplink and downlink subframes obtains the uplink and downlink subframe configuration of the specific carrier.
  • the user equipment may receive a system message from a base station of the serving cell, where the system message carries uplink and downlink subframe configuration information of a carrier that is not currently served in the serving cell; and receives signaling from the base station of the serving cell.
  • the signaling carries the uplink and downlink subframe configuration information of the carrier that is not currently providing the service in the neighboring cell.
  • the UE may receive a system message from the base station of the serving cell, where the system message includes not only the uplink and downlink subframe configuration information of the carrier currently camped by the UE, but also the serving cell where the UE is located. Upstream and downlink subframe configuration information of other carriers. In this way, the UE can obtain the uplink and downlink subframe configuration of the carrier of the serving cell.
  • the UE may obtain the uplink and downlink subframe configuration information of the carrier in the neighbor cell by using the signaling sent by the base station of the serving cell.
  • the signaling may be RRC signaling or other signaling.
  • the UE has acquired the uplink and downlink subframe configuration information of the carrier of the serving cell in the idle mode, and the uplink and downlink subframe configuration information of the carrier of the serving cell is not required to be obtained by using the signaling, only by means of the letter.
  • the uplink and downlink subframe configuration information of the carrier of the neighbor cell may be obtained.
  • the system message since the system message may only contain the uplink and downlink subframe configuration information of the currently serving carrier, it is necessary to use signaling to acquire and
  • the current serving carrier has related information of other carriers configured in different uplink and downlink subframes.
  • the system message carries the uplink and downlink subframe configuration information of the carrier in the serving cell
  • the signaling can carry the uplink and downlink subframe configuration information of all carriers in the neighboring cell.
  • the signaling may not carry information of some carriers in the neighbor cell.
  • the signaling when the carrier in the neighboring cell has the same uplink and downlink subframe configuration as the carrier in the same frequency band in the serving cell, the signaling does not carry the uplink and downlink subframe configuration information of the carrier of the neighboring cell.
  • the signaling only needs to carry the uplink and downlink subframe configuration information of the carrier whose uplink and downlink subframe configuration is unknown, and cannot be based on the carrier of the same frequency band.
  • the user equipment can receive synchronization signals from base stations of the serving cell and/or the neighbor cell.
  • the synchronization signal ⁇ ⁇ is transmitted on the synchronization channel, and the synchronization-related information is transmitted through the synchronization signal.
  • the synchronization signal is continuously transmitted periodically on the synchronization channel, and each cycle can be considered to constitute a control message.
  • the UE detects the physical cell identifier (Physical Cell Identification, PCI) in the synchronization signal by detecting the synchronization signal (ie, the control message) sent by the base station of the neighboring cell on the synchronization channel, and determines the uplink and downlink subframe configuration information of the corresponding carrier according to the PCI. This will be described in detail below with reference to FIG. 2.
  • PCI Physical Cell Identification
  • the uplink and downlink subframe configuration information of the carrier that is not currently served may be obtained by using the control message received in S110, so that the uplink and downlink subframe configuration of the corresponding carrier may be determined. If the control message does not carry the uplink and downlink subframe configuration information of a certain carrier or a certain carrier that is not currently served, the carrier has the same uplink and downlink subframe configuration as the carrier of the known uplink and downlink subframe configuration in the same frequency band. This is still the conclusion of the control message.
  • the uplink and downlink subframe configurations of the carrier that is not currently served and the carrier of the neighbor cell in the serving cell may be directly determined by using the system message.
  • the carriers that are not currently providing services may be all non-currently provided service carriers in the corresponding cell, or may be non-currently provided service carriers in a part of the corresponding cell.
  • only the uplink and downlink subframe configuration of the carrier that is not currently serving in the service cell may be determined, and the uplink and downlink subframe configuration of the carrier in the neighbor cell is determined by means of signaling.
  • the uplink and downlink subframe configuration of the carrier that is not currently providing the serving carrier and the neighbor cell in the serving cell may be directly determined by signaling. It is also possible to determine the uplink and downlink subframe configuration information of the carrier in the neighbor cell by using only signaling, and The uplink and downlink subframe configuration information that is not currently provided by the serving carrier in the serving cell may be acquired by the UE in the idle mode by using a system message.
  • the uplink and downlink subframe configuration information of the component carrier is carried by the RRC signaling
  • the system message sent by the base station corresponding to the component carrier currently serving the UE does not include the upper and lower components of the other component carriers of the cell where the base station is located
  • the uplink and downlink subframe configuration information of the other component carriers of the cell is required to be carried by the RRC signaling. Otherwise, the RRC signaling may not carry the uplink and downlink subframe configuration information of other component carriers of the cell, but only carry the neighbor information.
  • the uplink and downlink subframe configuration information of the carriers in the cell may not carry the uplink and downlink subframe configuration information of the carriers in the cell.
  • the uplink and downlink subframe configuration of the other component carriers is the same as the uplink and downlink subframe configuration of the current serving carrier (that is, the carrier where the UE is camped), if not, it may be directly given. Its uplink and downlink subframe configuration information.
  • the PCI of the corresponding carrier can be determined based on the synchronization signal. Since the specific uplink and downlink subframe configuration information can be set for different PCIs in advance, the uplink and downlink subframe configuration information of the carrier can be determined according to the PCI of the carrier, as described in FIG. 2 .
  • a carrier that is not currently served is measured based on an uplink and downlink subframe configuration of a carrier that is not currently served.
  • a carrier that is not currently served may be measured on a downlink subframe that is not a currently serving carrier based on an uplink and downlink subframe configuration of a carrier that is not currently served.
  • the uplink and downlink subframe configuration of the carrier may be determined, so that the specific location of the downlink subframe may be determined, and therefore, the carrier is used except for the subframes 0 and 5.
  • the carrier can also be measured using other downlink subframes.
  • the carrier can also be measured using a special subframe.
  • an uplink and downlink subframe configuration of a carrier from which the user equipment is not served may be determined.
  • the UE since the uplink and downlink subframe configuration of the carrier is determined, the UE can use more subframe information to assist in carrier measurement, so that only 0 is used compared to the related art.
  • the measurement performed by the number and the sub-frame 5 can obtain more accurate measurement results in a shorter time, and thus can improve the efficiency of measuring the carrier.
  • the manner of acquiring the uplink and downlink subframe configuration information of the carrier is small, and the existing system is not changed much, and the complexity is realized ⁇
  • FIG. 2 is a flow diagram of a method 200 of measuring a carrier in accordance with an embodiment of the present invention.
  • a synchronization signal from the base station is received.
  • the UE may receive the synchronization signal sent by the base station of the neighboring cell through the synchronization channel of the base station of the neighboring cell, and may also receive the synchronization signal sent by the base station of the serving cell by using the synchronization channel of the base station of the serving cell.
  • the UE may determine synchronization information related to the carrier corresponding to the base station by using the synchronization signal transmitted by the base station.
  • a physical cell identity of a carrier that is not currently served is determined.
  • the synchronization signal transmitted by the base station through the synchronization channel carries the PCI information of the carrier used by the base station.
  • Each carrier corresponds to a single PCI.
  • the UE may determine the PCL of the carrier in the serving cell according to the synchronization signal sent by the base station of the serving cell.
  • the UE may detect The carrier to the neighbor cell, so that the PCI of the detected carrier can be determined according to the synchronization signal sent from the base station of the neighbor cell.
  • an uplink and downlink subframe configuration of a carrier that is not currently served is determined based on the physical cell identifier.
  • the corresponding uplink and downlink subframe configuration mode can be set for each PCI in advance. In this way, the UE can determine the uplink and downlink subframe configuration of the carrier corresponding to the PCI according to the PCI of the carrier.
  • Different PCIs can also be grouped in advance, and one uplink and downlink subframe configuration mode is set for each packet. In this way, after the UE determines the PCI of the carrier in S220, according to the packet where the PCI is located, the corresponding uplink and downlink subframe configuration of the packet in which the PCI is located can be determined.
  • the uplink and downlink subframe configuration manners of each PCI may be dynamically changed by the base station.
  • the base station of the serving cell can not only inform the UE of the relationship between the PCI of its own carrier and the uplink and downlink subframe configuration, but also can acquire the PCI and the uplink and downlink subframes from the base station of the neighboring cell. Configuration - the corresponding relationship is told to the UE.
  • the UE can determine the uplink and downlink subframe configuration corresponding to the PCI according to the PCI determined in S220, so that the uplink and downlink subframe configuration information corresponding to the carrier can be determined.
  • a carrier that is not currently served is measured based on an uplink and downlink subframe configuration of a carrier that is not currently served. This step is basically the same as S130 of Fig. 1.
  • the method 200 can be used to obtain the uplink and downlink subframe configuration information of the carrier in the serving cell and the neighbor cell, and then the carrier in the serving cell and the neighbor cell, and the method 200 and the method 100 can also be performed. Combine to measure the carrier. For example, the method 200 obtains uplink and downlink subframe configuration information of a carrier of a neighbor cell, and then measures carriers in the neighbor cell, and The uplink and downlink subframe configuration information of the carrier of the serving cell is obtained by using the system message or signaling in the method 100, and then the carrier in the serving cell is measured.
  • the uplink and downlink subframe configuration of the carrier can be determined.
  • the uplink and downlink subframe configuration of the carrier can be conveniently determined according to the PCI information, so that more subframe information can be utilized to help measure the carrier, and only the subframes 0 and 5 are used compared with the related art.
  • the measurement can obtain more accurate measurement results in a shorter time, and thus can improve the efficiency of measuring the carrier.
  • the manner of acquiring the uplink and downlink subframe configuration information of the carrier is convenient, and the existing message and signaling are not modified, and the implementation complexity is low.
  • S310, S320, and S330 in method 300 are substantially identical to S110, S120, and S130 in method 100.
  • the method 300 may further include: S340.
  • S340 In the idle mode, when the carrier currently camped by the user equipment cannot be camped, select, among the carriers that are not currently providing services, according to the measurement result. The target carrier that can be camped on.
  • the UE can determine the target carrier that can camp based on the measurement of the carrier.
  • the UE may first measure the current serving carrier of the current serving cell, that is, measure the carrier currently camped by the UE. If the quality of the currently camping carrier is below a certain threshold, then the currently camped carrier cannot be camped, and then measurements of other carriers of the serving cell are initiated. If the other carriers in the serving cell are suitable for camping, then the carrier is selected as the target carrier that can camp on. If a suitable campable carrier is still not found in the other carriers of the serving cell, then the measurement of the carrier of the neighbor cell is initiated. When a target carrier suitable for camping is found in a neighbor cell, the UE selects the carrier as a campable target carrier, and determines to camp on the target carrier. If the target carrier that the UE selects to camp on is not in the same paging area as the carrier currently camped on the UE, the UE needs to perform a Tracking Area Update (TAU) process.
  • TAU Tracking Area Update
  • the method 300 may further include S350, in the connection mode, reporting the measurement result to the base station of the serving cell.
  • the UE that is communicating reports the measured signal quality of the carrier to the base station of the current serving cell for serving the cell.
  • the base station determines whether to perform handover based on the result of the carrier measurement.
  • the measured result of the report may include the measurement result of the carrier of the current serving cell and the measurement result of the carrier of the neighbor cell.
  • S350 is executed after S340 in Fig. 3, S350 can also be executed before S340, depending on the state in which the UE is currently located.
  • the measurement result may be utilized according to different modes in which the UE is located, thereby facilitating paging location update or handover execution.
  • the device 400 includes a receiving module 410, a determining module 420, and a measuring module 430.
  • the receiving module 410 is an interface for receiving a control message from the base station, where the control message is used to indicate an uplink and downlink subframe configuration of a carrier that is not currently served.
  • the determining module 420 is operative to determine an uplink and downlink subframe configuration of a carrier that is not currently serving based on the control message.
  • the measurement module 430 can be a processor that can be used to measure carriers that are not currently served based on uplink and downlink subframe configurations of carriers that are not currently served.
  • the foregoing and other operations and/or functions of the receiving module 410, the determining module 420, and the measuring module 430 may refer to S110 to S130 in the method 100 for measuring a carrier described above. To avoid repetition, details are not described herein.
  • the device for measuring a carrier provided by the embodiment of the present invention can determine the carriers according to the uplink and downlink subframe configuration information of the carrier that is not currently served by the control message, in the system in which the carrier has different uplink and downlink subframe configurations.
  • the uplink and downlink subframe configuration so that more downlink subframes can be utilized to measure carriers that are not currently served.
  • only the measurement using the 0th and 5th sub-frames can obtain more accurate measurement results in a shorter time by using more subframe information, thereby improving the efficiency of measuring the carrier. And since the measurement process is still performed based on the subframe, there is no need to increase the hardware resources required for the UE measurement, and the cost of the UE chip is not increased.
  • Figure 5 shows a block diagram of another apparatus 500 for measuring a carrier in accordance with an embodiment of the present invention.
  • the receiving module 510, the determining module 520, and the measuring module 530 of the device 500 are substantially the same as the receiving module 410, the determining module 420, and the measuring module 430 of the device 400.
  • the receiving module 510 is configured to receive system messages or signaling from a base station of a serving cell, where the system message or signaling carries uplink and downlink subframe configuration information of a carrier that is not currently served.
  • the receiving module 510 is configured to receive system messages or signaling from a base station of a serving cell, where the system message or signaling carries uplink and downlink subframe configuration information of a carrier that is not currently served in the serving cell.
  • the determining module 520 is further configured to: when the carrier that is not currently served in the neighboring cell has the same uplink and downlink subframe configuration as the carrier that is not currently served in the serving cell, based on the carrier that is not currently served in the serving cell.
  • the uplink and downlink subframe configuration information is used to determine an uplink and downlink subframe configuration of a carrier that is not currently served in the neighboring cell.
  • the receiving module 510 may include a first receiving unit 512 and a second receiving unit 514, which may be different interfaces, respectively.
  • the first receiving unit 512 is configured to receive a system message from a base station of the serving cell, where the system message carries uplink and downlink subframe configuration information of a carrier that is not currently served in the serving cell.
  • the second receiving unit 514 can be configured to receive signaling from a base station of the serving cell, where the signaling carries uplink and downlink subframe configuration information of a carrier that is not currently served in the neighboring cell.
  • the receiving module 510 can be configured to receive a synchronization signal from a base station.
  • the control message is a synchronization signal
  • the determination module 520 may include the first determination unit 522 and the second determination unit 524.
  • the first determining unit 522 is operative to determine a physical cell identity of the carrier based on the synchronization signal.
  • the second determining unit 524 is configured to determine uplink and downlink subframe configuration information of the carrier based on the physical cell identifier.
  • Apparatus 500 may also include selection module 540 and reporting module, in accordance with an embodiment of the present invention.
  • At least one of the 550, the two modules may be processors.
  • the selection module 540 can be configured to select, in the idle mode, a target carrier that can be camped on a carrier that is not currently served according to the measurement result when the carrier currently camped by the user equipment cannot camp.
  • the reporting module 550 can be used to report the measurement result to the base station of the serving cell in the connected mode.
  • the measurement module 530 can be configured to measure a carrier that is not currently served on a downlink subframe that is not a currently serving carrier based on an uplink and downlink subframe configuration of a carrier that is not currently served.
  • the apparatus for measuring a carrier provided by the embodiment of the present invention may determine, by obtaining a system message and/or signaling from a base station of a serving cell, an uplink and downlink subframe configuration information of a carrier from which the user equipment is not served.
  • the uplink and downlink subframe configurations of the corresponding carriers may also be determined based on the correspondence between the PCI and the uplink and downlink subframe configurations in the synchronization signal.
  • the UE can use more subframe information to assist in carrier measurement, so that only 0 is used compared to the related art.
  • the measurement performed by the number and the sub-frame 5 can obtain more accurate measurement results in a shorter time, and thus can improve the efficiency of measuring the carrier.
  • the manner of acquiring the uplink and downlink subframe configuration information of the carrier is small, and the existing system is not changed much, especially when the uplink and downlink subframe configuration information of the corresponding carrier is obtained by using the PCI, and the existing message and the existing message are not needed.
  • the signaling is modified to achieve low complexity.
  • the measurement results may be utilized in accordance with different modes in which the apparatus provided by the embodiments of the present invention are located, thereby facilitating paging location update or handover execution.
  • RAM random access memory
  • ROM read only memory
  • EEPROM electrically programmable ROM
  • EEPROM electrically erasable programmable ROM
  • registers hard disk, removable disk, CD-ROM or technology Any other form of storage medium known.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention, dans un mode de réalisation, porte sur un procédé et un appareil de mesure de porteuse ; le procédé comprend : la réception d'un message de commande provenant d'une station de base, le message de commande étant destiné à indiquer une configuration de sous-trame en liaison descendante-liaison montante de la porteuse qui ne fournit pas actuellement de services, la détermination de la configuration de sous-trame en liaison montante-liaison descendante de la porteuse qui ne fournit pas actuellement de services en fonction du message de commande, et la mesure de la porteuse en fonction de la configuration de sous-trame en liaison descendante-liaison montante. L'appareil comprend un module de réception, un module de détermination et un module de mesure. En s'appuyant sur la solution technique décrite dans le mode de réalisation de la présente invention, la configuration de sous-trame en liaison montante-liaison descendante de la porteuse ne fournissant pas actuellement de services peut être obtenue à partir du message de commande, permettant ainsi d'utiliser plus d'informations de sous-trame pour mesurer la porteuse ne fournissant pas actuellement de services, ce qui permet d'obtenir un résultat de mesure plus précis dans un intervalle de temps plus court, améliorant ainsi l'efficacité de mesure de porteuse, et du fait que la mesure est toujours basée sur des sous-trames, il n'est pas nécessaire d'ajouter des ressources matérielles requises pour une mesure d'équipement d'utilisateur, et ainsi cette solution n'entraîne pas une augmentation du coût de la puce de l'équipement d'utilisateur.
PCT/CN2012/071909 2011-03-30 2012-03-05 Procédé et appareil de mesure de porteuse Ceased WO2012130014A1 (fr)

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CN104639229B (zh) * 2014-12-29 2018-01-19 中国科学院信息工程研究所 一种快速获取td‑lte系统中子帧配置的方法
WO2019007054A1 (fr) * 2017-07-05 2019-01-10 西安中兴新软件有限责任公司 Procédé, dispositif et système d'établissement d'une liaison de communication, et support de stockage

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