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WO2010085915A1 - 信号质量的检测方法、装置和系统 - Google Patents

信号质量的检测方法、装置和系统 Download PDF

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Publication number
WO2010085915A1
WO2010085915A1 PCT/CN2009/070340 CN2009070340W WO2010085915A1 WO 2010085915 A1 WO2010085915 A1 WO 2010085915A1 CN 2009070340 W CN2009070340 W CN 2009070340W WO 2010085915 A1 WO2010085915 A1 WO 2010085915A1
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WO
WIPO (PCT)
Prior art keywords
carrier
tested
target
information
signal quality
Prior art date
Application number
PCT/CN2009/070340
Other languages
English (en)
French (fr)
Inventor
于映辉
宋巍巍
马慧
Original Assignee
华为技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN2009801239036A priority Critical patent/CN102138349B/zh
Priority to PCT/CN2009/070340 priority patent/WO2010085915A1/zh
Publication of WO2010085915A1 publication Critical patent/WO2010085915A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, device and system for detecting signal quality.
  • a user equipment In a wireless communication system, a user equipment (User Equipment, UE) detects a signal quality of a neighboring cell using the carrier according to carrier information transmitted by the network side.
  • a carrier aggregation system such as a long-term evolution advance (LTE-A) system
  • LTE-A long-term evolution advance
  • a multi-cell a set of such a plurality of cells is called a cell set, and when the UE performs signal quality detection on the cell set, it is required to detect all carriers used by the cell set, so that the detection load of the UE is large, and the UE consumes The power is large.
  • Embodiments of the present invention provide a method, an apparatus, and a system for detecting a signal quality, which can reduce a detection burden of a UE on a signal quality of a cell set of a carrier aggregation system, and save detection resources.
  • a signal quality detection method which is applied to a carrier aggregation system, includes: sending, to a user equipment, a message carrying one or more carrier group information to be tested, where the message is used to indicate that the user terminal is from the one or more carrier groups to be tested.
  • the target carrier is selected from the included carriers to be tested, and the signal quality of the neighboring cell set in which the target carrier is located is detected.
  • a method for detecting a signal quality which is applied to a carrier aggregation system, includes: receiving, by a base station, a message that carries more than one carrier group information to be tested; selecting a target carrier from each carrier group to be tested; The signal quality of the adjacent cell set is detected.
  • a base station used in a carrier aggregation system, includes:
  • a sending unit configured to send, to the user equipment, a message that carries one or more carrier group information to be tested, The message is used to indicate that the user equipment selects a target carrier from the to-be-measured carriers included in the one or more tested carrier groups, and detects a signal quality of the neighboring cell set in which the target carrier is located.
  • a user terminal which is applied in a carrier aggregation system, and includes:
  • a receiving unit configured to receive, by the base station, a message that carries one or more carrier group information to be tested; and an acquiring unit, configured to select a target carrier from each of the to-be-measured carrier groups received by the receiving unit;
  • a signal quality detection system is applied to a carrier aggregation system, and includes a base station, configured to communicate with a user terminal, where the base station is further configured to send, to the user equipment, a message carrying one or more carrier group information to be tested, where the message is used by the message And instructing the user terminal to select a target carrier from the to-be-measured carriers included in the one or more tested carrier groups, and detect a signal quality of the neighboring cell set in which the target carrier is located.
  • the base station can send the to-be-tested carrier used by the neighboring cell in the carrier aggregation system to the user terminal in the form of one or more carrier group information to be tested, by the user
  • the terminal selects the target carrier from each carrier group to be tested, and measures the signal quality of the neighboring cell set where the target carrier is located, and solves the problem that the prior art user terminal needs to measure the quality of each carrier signal used by the neighboring cell. , causing problems such as measurement burden and large power consumption.
  • the user terminal only needs to measure the signal quality of the target carrier in the carrier group to be tested, reduces the measurement burden, saves resources, and improves the measurement speed.
  • FIG. 1 is a flowchart of a method for detecting a signal quality according to another embodiment of the present invention.
  • FIG. 2 is a flowchart of a method for detecting a signal quality according to another embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a signal quality detection method according to another embodiment of the present invention shown in FIG. 4 is a schematic diagram 2 of a carrier used by a neighboring cell set aggregation in a signal quality detecting method according to another embodiment of the present invention shown in FIG. 2;
  • FIG. 5 is a schematic diagram 3 of a carrier used for aggregation of adjacent cells in a method for detecting signal quality according to another embodiment of the present invention shown in FIG. 2;
  • FIG. 6 is a schematic diagram 4 of a carrier used for aggregation of neighboring cells in a method for detecting signal quality according to another embodiment of the present invention shown in FIG. 2;
  • FIG. 7 is a schematic diagram 5 of a carrier used for aggregation of neighboring cells in a method for detecting signal quality according to another embodiment of the present invention shown in FIG. 2;
  • FIG. 8 is a flowchart of step 205 in the method for detecting signal quality according to another embodiment of the present invention shown in FIG. 2;
  • FIG. 9 is a flowchart of a method for detecting a signal quality according to still another embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram 1 of a user terminal according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram 2 of a user terminal according to an embodiment of the present invention. detailed description
  • the embodiment of the present invention provides a signal quality detection method, Devices and systems.
  • the method for detecting a signal quality is applied to a carrier aggregation system, and includes: sending, to a user equipment, a message carrying one or more carrier group information to be tested, indicating that the user terminal is from the one or more carrier groups to be tested.
  • the target carrier is selected from the included carriers to be tested, and the signal quality of the neighboring cell set in which the target carrier is located is detected.
  • the method for detecting the signal quality provided by the embodiment of the present invention can send the to-be-tested carrier used by the neighboring cell set in the carrier aggregation system to the user terminal in the form of one or more carrier group information to be tested, and instruct the user terminal to Selecting a target carrier in the carrier group to be tested, where the target carrier is located
  • the signal quality of the neighboring cell set is measured, which solves the problem that the prior art user terminal needs to measure the quality of each carrier signal used by the neighboring cell set, resulting in a measurement burden and a large power consumption.
  • the user terminal only needs to measure the signal quality of the target carrier in the carrier group to be tested, reduces the measurement burden, saves resources, and improves the measurement speed.
  • another embodiment of the present invention further provides a method for detecting a signal quality, which is applied in a carrier aggregation system, and includes:
  • Step 101 Receive, by the base station, a message that carries one or more carrier group information to be tested.
  • Step 102 Select a target carrier from each carrier group to be tested.
  • Step 103 Detect a signal quality of a neighboring cell set where the target carrier is located.
  • the method for detecting a signal quality can select a target carrier from each carrier group to be tested according to one or more carrier group information to be tested sent by the base station, and select a signal of a neighboring cell set where the target carrier is located.
  • the quality is measured, which solves the problem that the prior art user terminal needs to measure the quality of each carrier signal used by the adjacent cell set, resulting in a measurement burden and a large power consumption.
  • the user terminal only needs to measure the signal quality of the target carrier in the carrier group to be tested, reduces the measurement burden, saves resources, and improves the measurement speed.
  • a signal quality detection method is applied to a carrier aggregation system, including:
  • Step 201 The base station groups the carriers to be tested of the neighboring cell set to obtain one or more carrier groups to be tested.
  • the base station may group the carriers to be tested according to the frequency characteristics of the carrier to be tested and the associated cell set. E.g:
  • the carrier F1 to be tested is not used for aggregation in any cell set adjacent to the current serving cell set (or the camped cell set) of the UE, the carrier F1 to be tested is separately divided into one carrier group to be tested; All the neighboring cells in the cell set (or camped cell set) are aggregated and used. Multiple carriers, such as carrier F2, carrier F3, and carrier F4. At this time, if the frequency characteristics of carrier F2, carrier F3, and carrier F4 are similar, the base station may divide the carrier F2, carrier F3, and carrier F4 into the same one.
  • carrier F2 and carrier F3 and carrier F4 are different, for example, carrier F2 and carrier F3 belong to the same band, carrier F4 belongs to another band, and the frequency difference between the two bands is large, the base station can The carrier F2 and the carrier F3 are divided into one carrier group to be tested, and the carrier F4 is divided into another carrier group to be tested;
  • the aggregated cell set (Cell Set 1 and Cell Set 2) is also aggregated using the carrier F5, and the frequency characteristics of the carrier F5 and the carrier F2, the carrier F3 and the carrier F4 are similar, and the base station can use the carrier F2, the carrier F3, and the carrier F4.
  • the carrier F5 is divided into the same carrier group to be tested, and the carrier F2, the carrier F3, and the carrier F4 may be divided into the same carrier group to be tested, and the carrier F5 is divided into another carrier group to be tested;
  • the aggregated cell set (Cell Set 2) also uses the carrier F6, and the cells of some single carriers also use the carrier F6, and the frequency characteristics of the carrier F6 and the carrier F2, the carrier F3 and the carrier F4 are similar, and the base station can use the carrier F2.
  • F3, F4, and F6 are divided into the same carrier group to be tested.
  • the carriers F2, F3, and F4 can be divided into the same carrier group to be tested, and the carrier F6 is divided into another carrier group to be tested.
  • the carrier F2 uses the carrier F5 and the carrier F6, and the frequency characteristics of the carriers F2 to F6 are similar, the base station can divide the carrier F2, the carrier F3 and the carrier F4 into the same carrier group to be tested, and the carrier F5 and carrier F6 are divided into another carrier group to be tested;
  • the carrier F2 and the carrier F3 are used, wherein a part of the cell set (small The cluster 1 and the cell set 2) are also aggregated using the carrier F1, the partial cell set (cell set 4) is also aggregated using the carrier F4 and the carrier F5, and the frequency characteristics of the carrier F1 to the carrier F5 are similar, and the base station can transmit the carrier F1 to carrier F5 are divided into the same carrier group to be tested;
  • carrier F2 and carrier F3 are used, wherein a part of the cell set ( The cell set 1 and the cell set 2) are also aggregated using the carrier F1, the partial cell set (cell set 4) is also aggregated using the carrier F4 and the carrier F5, and the other partial cell set (cell set 5) is aggregated using the carrier F4 and the carrier F5, and
  • the frequency characteristics of the carrier F1 to the carrier F5 are similar, and the base station may divide the carrier F1 to the carrier F5 into the same carrier group to be tested, or divide the carriers F1 to F3 into one carrier group to be tested, and the carrier F4 and the carrier. F5 is divided into another carrier group to be tested;
  • the base station may further group the carriers to be tested in the neighboring cells by other methods, and the details are not described herein.
  • Step 202 The base station sends a message carrying the one or more carrier group information to be tested to the UE, which may be divided into two cases:
  • the base station sends a message carrying the one or more carrier group information to be tested to the UE in the idle state, where the message carrying one or more carrier group information to be tested may be a system message.
  • the carrier group information to be tested may be carried in the measurement carrier group information list of the system message; or, if the system message carries the carrier information of the current cell, the carrier group information to be tested may be carried in In the to-be-tested carrier group information indication bit of the system message, in the embodiment, the to-be-tested carrier group information indication bit is represented by 1 bit, indicating whether the to-be-tested carrier information included in the to-be-tested carrier group is related to the current cell.
  • the carrier information is the same, for example, 0 indicates the same, and 1 indicates the difference. If the carrier information to be tested in the carrier group to be tested is different from the carrier information of the current cell, the system message also needs to carry the carrier group information list.
  • the carrier group information list may carry the carrier information to be tested, and the to-be-tested carrier information may be carried in a one-to-one list, or if the system carries the carrier information of the current cell, The carrier information to be measured may also be different from the carrier information of the current cell.
  • the carrier information list may further carry the carrier group to be tested or the priority information of the carrier to be tested, the target/non-target carrier indication information, the carrier where the neighboring cell is to be tested, the cell identifier, and the like.
  • Kind or combination for example:
  • the base station divides the carrier F2, the carrier F3, the carrier F4, and the carrier F5 into the same carrier group to be tested.
  • the carrier group information list that is sent by the base station to the UE needs to carry the target for the carrier F5/ Non-target carrier indication information, indicating that the carrier F5 is a non-target carrier by the target/non-target carrier indication information;
  • the base station divides the carrier F1 to the carrier F5 into the same carrier group to be tested in step 201, at this time, due to the carrier Fl, the carrier F4, and the carrier F5 do not include all the neighboring cell sets of the current serving cell set (or the camped cell set) of the UE, so the carrier F1 and the carrier F4 are also required in the carrier group information list sent by the base station to the UE.
  • the carrier F5 carries the target/non-target carrier indication information
  • the target/non-target carrier indication information indicates that the carrier F1, the carrier F4, and the carrier F5 are non-target carriers, or because the carriers F2 and F3 include the current serving cell set of the UE (or All the neighboring cell sets of the camped cell set), so that the carrier F2 and/or the carrier F3 may carry the target/non-target carrier indication information in the carrier group information list sent by the base station to the UE, by using the target/non-target
  • the target carrier indication information indicates that the carrier F2 and/or the carrier F3 are target carriers;
  • the neighboring cell set of the current serving cell set (or the camping cell set) of the UE is as shown in FIG. 7, and the base station divides the carrier F1 to the carrier F5 into the same carrier group to be tested in step 201, at this time, due to the UE
  • the majority of the neighboring cell sets of the current serving cell set (or the camped cell set) include the carriers F2 and F3, so the carrier group information list sent by the base station to the UE may also carry the target for the carrier F2 and/or the carrier F3.
  • the carrier F2 and/or the carrier F3 are the target carriers by the target/non-target carrier indication information, and, because the cell set 5 only includes the carriers F4 and F5, the carrier group sent by the base station to the UE
  • the information list also needs to be carried for carrier F4 and / or F5
  • the neighboring cell set carrier and/or the identifier to be tested, such as the identifier of the cell set 5, indicates that the UE measures the signal quality of the carrier F4 and/or F5 of the cell set 5;
  • the target/non-target carrier indication information may be represented by lbit, where 0 may represent a non-target carrier, and 1 may represent a target carrier.
  • the carrier group information list described above carries the information
  • the base station may carry other related information in the carrier group information list according to actual needs, and this is not performed in each case. .
  • the LTE-A UE can reside in the cell where the LTE-A carrier is located, or can reside in the cell where the LTE carrier is located. However, the LTE UE can only reside on the LTE carrier.
  • the cell in which the cell is located in order to be able to reserve the LTE carrier resource for the LTE UE, the base station needs to instruct the LTE-A UE not to measure the signal quality of the LTE carrier, or instruct the LTE-A UE to preferentially measure the signal quality of the LTE-A carrier. .
  • the system message may also carry the LTE carrier information indication and/or the LTE carrier.
  • Priority modification policy information The LTE carrier information indication that is involved in the aggregation may be used to indicate that the LTE-A UE does not select the carrier as the target carrier, that is, the signal quality measurement is not performed on the carrier; the priority modification policy information of the LTE carrier is used to indicate the LTE-
  • the A UE preferentially selects the LTE-A carrier for signal quality measurement, and the priority modification policy information of the LTE carrier may be lower priority information set by the base station for the LTE carrier in advance, or may be preset to reduce the LTE carrier priority. Adjust the value.
  • the base station sends a message carrying the one or more carrier group information to be tested to the UE in the active state, where the message carrying more than one carrier group information to be tested may be dedicated signaling, such as radio resource control connection reconfiguration.
  • the carrier group information to be tested may also be carried in a carrier group information list and/or to be tested.
  • the specific implementation method refer to the case where the base station sends a message carrying the one or more carrier group information to be tested to the UE in the idle state, and details are not described herein again.
  • the carrier group information list may carry the carrier information to be tested, and the carrier information to be tested may be carried in a one-to-one enumeration manner, or may only carry carrier information that is different from the carrier information of the current cell;
  • the carrier group information list may also carry the measurement bandwidth of the carrier group to be tested.
  • the carrier group list may also carry other information related to signal quality measurement, and one case is not performed here.
  • Step 203 The UE receives a message that is sent by the base station and carries one or more carrier group information to be tested.
  • the UE when the UE is in an idle state, the UE may acquire one or more carrier group information to be tested by monitoring system information in the broadcast; when the UE is in an active state, the UE may receive one or more carriers that are actively sent by the base station.
  • the dedicated signaling of the carrier group information to be tested may also be requested by the base station to obtain the dedicated signaling that carries more than one carrier group information to be tested, and details are not described herein.
  • Step 204 The UE selects one or more carriers from each carrier group to be tested as a target carrier, and may be divided into two cases:
  • the UE may select a target carrier from each of the tested carrier groups by any one of the following methods:
  • the carrier group information to be tested includes the priority information of the carrier to be tested, the carrier with the highest priority is selected as the target carrier;
  • the target carrier is selected according to the target/non-target carrier indication information, specifically, if the target/non-target carrier indication information of a certain tested carrier is 0. , that is, the carrier is a non-target carrier, and one or more of the other carriers to be tested in the carrier group to be tested are selected as the target carrier. If the target/non-target carrier indication information of a carrier to be tested is 1, If the carrier is a target carrier, the carrier carrier to be tested is selected;
  • the carrier group to be measured carries an indication of LTE carrier information participating in aggregation
  • the carrier to be tested other than the LTE carrier participating in the aggregation is the target carrier;
  • the modified priority information is obtained according to the priority modification policy information of the LTE carrier, and the carrier with the highest priority is selected as the target carrier;
  • the UE may also select a target carrier from each carrier group to be tested by other means, for example: selecting a target carrier by modulating the number of carriers to be tested in a carrier group to be measured by using the UE identifier. Or, if the carrier currently camped by the UE is included in the carrier group to be tested, the carrier currently camped by the UE is selected as the target carrier.
  • the UE may specifically select a target carrier from each carrier group to be tested according to a preset selection policy.
  • the UE may pre-store a selection policy, and select a target carrier according to the selection policy.
  • the UE may also store multiple selection policies in advance, and select one of the selection policies according to the indication of the base station, and select a target carrier according to the selection policy, and the UE further
  • the selection strategy can be obtained directly from the base station, and the target carrier is selected according to the selection strategy.
  • the UE may select the target carrier from each carrier group to be tested by any one of the following methods:
  • Selecting a carrier to be tested in the range of the received bandwidth of the UE as the target carrier where the carrier to be tested in the range of the received bandwidth of the UE may be a carrier in the carrier group to be tested that has the same carrier frequency or similar frequency characteristics as the UE receives and transmits data. It may also be a carrier or the like that does not require the UE to measure within a specific detection time (the UE cannot transmit service data during the detection time, measure Gap);
  • the LTE-A carrier is selected as the target carrier.
  • the UE in the active state may also select the target carrier by other means, and details are not described herein.
  • the UE may also select a target carrier from each carrier group to be tested according to a preset selection policy.
  • a target carrier from each carrier group to be tested according to a preset selection policy.
  • the network side may set a default measurement carrier for the UE.
  • the UE in the idle state also needs to acquire the measurement carrier, and select the measurement carrier.
  • the wave is the target carrier.
  • the method for acquiring the measurement carrier by the UE in the idle state may include two types: one is: the UE acquires the preset measurement carrier from pre-stored measurement carrier information; The receiving network side sends the UE-specific measurement carrier list, and obtains measurement carrier information from the list.
  • the measurement carrier list may notify the UE by dedicated signaling through the idle state UE paging area update process.
  • the UE may also obtain measurement carrier information by other means, and no comment is made here.
  • Step 205 The UE measures a signal quality of a neighboring cell set where the target carrier is located. As shown in Figure 8, when in the idle state, it includes:
  • Step 801 The UE determines whether it is required to perform signal quality detection on the target carrier. For example, the UE may determine, according to the priority of the target carrier or the carrier group, whether to perform signal quality detection on the target carrier, if the target carrier or carrier group If the priority of the carrier is higher than the priority of the carrier, the signal quality of the target carrier needs to be detected. Otherwise, the signal quality is not detected. For example, the UE can determine whether the target carrier is based on the signal quality of the current cell. The signal quality is detected. If the signal quality of the current cell is lower than the preset signal quality threshold, the signal quality of the target carrier is detected, otherwise the signal quality of the target carrier is not measured.
  • the UE may also determine whether it is necessary to perform signal quality detection on the target carrier according to the combination of the foregoing two methods, or determine by other means. , here is not done for each case - repeat.
  • Step 802 If there is a cell set on the target carrier, the UE measures the signal quality of the target carrier.
  • the UE may directly measure the signal quality of the target carrier. If the UE is in an active state, the bandwidth of the carrier aggregation cell is generally higher than the bandwidth of the ordinary single carrier cell. For example, the maximum bandwidth of the LTE-A cell is 100 M, and the maximum bandwidth of the LTE cell is 20 M. To meet the bandwidth requirement of the carrier aggregation cell, a larger signal quality measurement bandwidth can be set in advance, for example, 100 RB.
  • the band bandwidth information of the group and/or the corresponding relationship between the band bandwidth of the carrier group and the band measurement bandwidth, and a larger signal quality measurement bandwidth set in advance is selected, and the signal quality of the adjacent cell set where the target carrier is located is detected.
  • the UE may stop in the carrier group to be tested where the target carrier is located.
  • the UE may perform the signal quality detection on any of the carriers to be tested, and the UE may perform step 204 again, select another target carrier from the carrier group to be tested, and continue measurement.
  • the UE may perform corresponding operations according to the signal quality detection result of the target carrier, such as cell reselection or cell handover.
  • the signal quality detection result of the target carrier needs to be reported to the base station, where the base station Perform corresponding operations on the UE.
  • the step 203 may further include the step of the UE determining whether to select the LTE carrier as the target carrier. Specifically, if the UE determines that the detection result of the LTE-A carrier signal quality is lower than the preset signal quality detection threshold, the UE selects the LTE carrier as the target carrier; or if the UE determines that the signal quality detection result of the current serving cell is lower than the pre-determination
  • the signal quality detection threshold is set, and the UE selects an LTE carrier as the target carrier, where the signal quality detection threshold information may be obtained from the network side to the dedicated signaling sent by the UE.
  • the UE may also determine whether to select the LTE carrier as the target carrier by other means, and this is not done in each case.
  • the base station can divide the carrier to be tested used by the neighboring cell set in the carrier aggregation system into one or more carrier groups to be tested according to the frequency characteristic and the belonging cell, and the carrier group to be tested The carrier characteristics of the carrier to be tested are similar.
  • the UE only needs to select one or more target carriers from each carrier group to be tested, and the signal quality of the target carrier is measured.
  • the target is The signal quality of the carrier can be approximated as the signal quality of other carriers to be tested in the carrier group to be tested, which reduces the detection load of the UE, saves the detection resources, improves the detection efficiency, and solves the problem that the prior art UE needs to be adjacent.
  • the quality of each carrier signal used by the cell set is measured, causing problems such as measurement burden and large power consumption.
  • a further embodiment of the present invention further provides a method for detecting a signal quality. As shown in FIG. 9, the method includes:
  • Step 901 The base station groups the carriers to be tested in the neighboring cell set to obtain one or more carrier waves to be tested.
  • the base station groups the carriers to be tested in the neighboring cell set to obtain one or more carrier waves to be tested.
  • Step 902 The base station selects a target carrier from each carrier group to be tested.
  • the specific implementation method may be as described in step 204 shown in FIG. 2, and details are not described herein.
  • Step 903 The base station sends a message carrying the target carrier information to the UE, including: if the UE is in an idle state, the base station sends a system message to the UE, where the system message carries the frequency information of the target carrier, or the priority Information, or the adjacent cell set carrier and/or identification to be tested;
  • the base station If the UE is in an active state, the base station sends dedicated signaling to the UE, and carries the frequency information of the target carrier in the dedicated signaling, or measures the bandwidth and the like.
  • Step 904 The UE receives the message carrying the target carrier information, and measures the signal quality of the neighboring cell set where the target carrier is located. For the specific implementation method, refer to step 205 shown in FIG. 2, where No longer.
  • the base station can divide the carrier to be tested used by the neighboring cell set in the carrier aggregation system into one or more carrier groups to be tested according to the frequency characteristic and the belonging cell, and Selecting a target carrier in the carrier group, instructing the UE to measure the signal quality of the target carrier. Since the characteristics of the carrier to be tested in the carrier group to be tested are similar, the signal quality of the target carrier can be approximated as other to be tested in the carrier group to be tested.
  • the signal quality of the carrier reduces the detection load of the UE, saves the detection resources, improves the detection efficiency, and solves the problem that the prior art UE needs to measure the quality of each carrier signal used by the neighboring cell set, thereby causing a measurement burden and Power consumption and other issues.
  • an embodiment of the present invention further provides a base station, which is applied in a carrier aggregation system, and includes:
  • the sending unit 1001 is configured to send, to the user equipment, the information that carries more than one carrier group information to be tested. And the message is used to indicate that the user equipment selects a target carrier from the to-be-measured carriers included in the one or more tested carrier groups, and detects a signal quality of the neighboring cell set in which the target carrier is located.
  • step 202 shown in FIG. 2 the specific sending method of the sending unit 1001 can be referred to as step 202 shown in FIG. 2, and details are not described herein.
  • the base station may further include:
  • the grouping unit 1002 is configured to divide the to-be-tested carrier into more than one carrier group to be tested according to the frequency characteristic of the carrier to be tested and the cell to which the carrier is to be tested.
  • the method for the specific grouping of the carrier to be tested by the grouping unit 1002 is as described in step 201 shown in FIG. 2, and details are not described herein.
  • the base station provided by the embodiment of the present invention can send the to-be-tested carrier used by the neighboring cell set in the carrier aggregation system to the user terminal in the form of one or more carrier group information to be tested, and instruct the user terminal to use each carrier group to be tested.
  • the target carrier is selected, and the signal quality of the neighboring cell where the target carrier is located is measured, which solves the problem that the prior art user terminal needs to measure the quality of each carrier signal used by the neighboring cell set, resulting in measurement burden and power consumption.
  • the user terminal only needs to measure the signal quality of the target carrier in the carrier group to be tested, reduces the measurement burden, saves resources, and improves the measurement speed.
  • the embodiment of the present invention further provides a user terminal, which is applied in a carrier aggregation system, and includes:
  • the receiving unit 1101 is configured to receive, by the base station, a message that carries one or more carrier group information to be tested;
  • the acquiring unit 1102 is configured to select a target carrier from each of the tested carrier groups received by the receiving unit 1101.
  • the detecting unit 1103 is configured to detect a signal quality of a neighboring cell set where the target carrier is located.
  • the obtaining unit 1102 may be configured to: if the user terminal is in an idle state, select a target carrier from each tested carrier group by using any one of the following methods: If the carrier group information to be tested includes the priority information of the carrier to be tested, the carrier with the highest priority is selected as the target carrier.
  • the carrier group information to be tested includes target/non-target carrier indication information, selecting a target carrier according to the target/non-target carrier indication information,
  • the carrier to be tested other than the long-term evolution carrier participating in the aggregation is selected as the target carrier.
  • the carrier group to be tested includes a carrier that the current user camps on, the carrier to be tested is selected as a target carrier.
  • the modified priority information is obtained according to the priority modification policy information of the long-term evolved carrier, and the carrier with the highest priority is selected as the target carrier;
  • the target carrier is selected from each of the tested carrier groups by any one or combination of the following:
  • the long-term evolution enhanced carrier is selected as the target carrier.
  • the user terminal may further include:
  • the determining unit 1104 is configured to determine whether the long-term evolution carrier is selected as the target carrier. For the specific implementation, refer to step 204 shown in FIG. 2, which is not described herein.
  • the acquiring unit 1102 is further configured to acquire a preset measurement carrier, and select the measurement carrier as a target carrier.
  • the specific implementation method refer to step 204 shown in FIG. 2 . As shown, it will not be described here.
  • the detecting unit 1103 may be specifically configured to detect, according to a signal quality measurement bandwidth of a preset carrier aggregation system, a signal quality of a neighboring cell where the target carrier is located, and the specific implementation method can be seen in FIG. 2 The steps shown in step 205 are not described here.
  • the user terminal provided by the embodiment of the present invention can be based on one or more carriers to be tested sent by the base station. Group information, selecting a target carrier from each carrier group to be tested, and measuring signal quality of the neighboring cell set where the target carrier is located, and solving each carrier signal that the prior art user terminal needs to use for the neighboring cell The quality is measured, causing problems such as measurement burden and large power consumption. According to the technical solution provided by the embodiment of the present invention, the user terminal only needs to measure the signal quality of the target carrier in the carrier group to be tested, reduces the measurement burden, saves resources, and improves the measurement speed.
  • the embodiment of the present invention further provides a signal quality detection system, which is used in a carrier aggregation system, and includes: a base station, configured to communicate with a user terminal, where the base station is further configured to send, to the user terminal, one or more carrier groups to be tested. And a message of the information, the message is used to indicate that the user equipment selects a target carrier from the to-be-tested carriers included in the one or more tested carrier groups, and detects a signal quality of the neighboring cell set in which the target carrier is located.
  • a signal quality detection system which is used in a carrier aggregation system, and includes: a base station, configured to communicate with a user terminal, where the base station is further configured to send, to the user terminal, one or more carrier groups to be tested. And a message of the information, the message is used to indicate that the user equipment selects a target carrier from the to-be-tested carriers included in the one or more tested carrier groups, and detects a signal quality of the neighboring cell set in which the target carrier
  • the base station can send the to-be-tested carrier used by the neighboring cell set in the carrier aggregation system to the user terminal in the form of one or more carrier group information to be tested, and the user terminal
  • the target carrier is selected in the carrier group to be tested, and the signal quality of the neighboring cell where the target carrier is located is measured, which solves the problem that the prior art user terminal needs to measure the quality of each carrier signal used by the adjacent cell set, thereby causing measurement.
  • the burden and the problem of large power consumption According to the technical solution provided by the embodiment of the present invention, the user terminal only needs to measure the signal quality of the target carrier in the carrier group to be tested, reduces the measurement burden, saves resources, and improves the measurement speed.

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Description

信号质量的检测方法、 装置和系统 技术领域
本发明涉及通信领域， 尤其涉及一种信号质量的检测方法、 装置和系统。
背景技术
在无线通信系统中， 用户终端（User Equipment, UE )根据网络侧发送的 载波信息对使用该载波的相邻小区的信号质量进行检测。 对于长期演进增强 ( long-term evolution advance, LTE-A ) 系统等载波聚合系统， 集中地理区域 的几个小区,被称之为集中式的多小区,在一个基站下的载波聚合是一种集中 式的多小区,这种多个小区组成的集合称为小区集， UE在对该小区集进行信号 质量检测时， 需要检测该小区集使用的全部载波， 使得 UE的检测负担较大， 并且耗电量大。
发明内容
本发明的实施例提供一种信号质量的检测方法、 装置和系统， 能够减轻 UE对载波聚合系统的小区集的信号质量的检测负担， 节省检测资源。
为达到上述目的， 本发明的实施例釆用如下技术方案：
一种信号质量的检测方法， 应用在载波聚合系统中， 包括： 向用户终端 发送携带一个以上待测载波组信息的消息， 该消息用于指示所述用户终端从 所述一个以上待测载波组包含的待测载波中选取目标载波， 对该目标载波所 在的相邻小区集的信号质量进行检测。
一种信号质量的检测方法， 应用在载波聚合系统中， 包括： 接收基站发 送的携带一个以上待测载波组信息的消息； 从每个待测载波组中选取目标载 波； 对所述目标载波所在的相邻小区集的信号质量进行检测。
一种基站， 应用在载波聚合系统中， 包括：
发送单元， 用于向用户终端发送携带一个以上待测载波组信息的消息， 该消息用于指示所述用户终端从所述一个以上待测载波组包含的待测载波中 选取目标载波， 对该目标载波所在的相邻小区集的信号质量进行检测。
一种用户终端， 应用在载波聚合系统中， 包括：
接收单元， 用于接收基站发送的携带一个以上待测载波组信息的消息； 获取单元， 用于从所述接收单元接收到的每个待测载波组中选取目标载 波；
检测单元， 用于对所述目标载波所在的相邻小区集的信号质量进行检测。 一种信号质量的检测系统， 应用在载波聚合系统中， 包括基站， 用于与 用户终端通信， 所述基站， 还用于向用户终端发送携带一个以上待测载波组 信息的消息， 该消息用于指示所述用户终端从所述一个以上待测载波组包含 的待测载波中选取目标载波， 对该目标载波所在的相邻小区集的信号质量进 行检测。
本发明实施例提供的信号质量的检测方法、 装置和系统， 基站能够将载 波聚合系统中相邻小区使用的待测载波以一个以上待测载波组信息的形式发 送给用户终端， 由所述用户终端从每个待测载波组中选取目标载波， 对该目 标载波所在的相邻小区集的信号质量进行测量， 解决了现有技术用户终端需 要对相邻小区使用的每个载波信号质量进行测量， 造成测量负担以及耗电量 大等问题。 本发明实施例提供的技术方案， 用户终端只需要对待测载波组中 的目标载波的信号质量进行测量， 减小了测量负担并节省了资源， 提高了测 量速度。 附图说明
图 1为本发明另一实施例提供的信号质量的检测方法流程图；
图 2为本发明又一实施例提供的信号质量的检测方法流程图；
图 3为图 2所示的本发明又一实施例提供的信号质量的检测方法中相邻 图 4为图 2所示的本发明又一实施例提供的信号质量的检测方法中相邻 小区集聚合使用载波示意图二；
图 5为图 2所示的本发明又一实施例提供的信号质量的检测方法中相邻 小区集聚合使用载波示意图三；
图 6为图 2所示的本发明又一实施例提供的信号质量的检测方法中相邻 小区集聚合使用载波示意图四；
图 7为图 2所示的本发明又一实施例提供的信号质量的检测方法中相邻 小区集聚合使用载波示意图五；
图 8为图 2所示的本发明又一实施例提供的信号质量的检测方法中步骤 205的流程图；
图 9为本发明再一实施例提供的信号质量的检测方法流程图；
图 10为本发明实施例提供的基站结构示意图；
图 11为本发明实施例提供的用户终端结构示意图一；
图 12为本发明实施例提供的用户终端结构示意图二。 具体实施方式
为了解决 UE需要对载波聚合系统中 ,相邻小区集聚合使用的每个载波进 行信号质量检测，造成 UE检测负担和耗电量大的问题，本发明实施例提供一 种信号质量的检测方法、 装置和系统。
本发明实施例提供的信号质量的检测方法， 应用在载波聚合系统中， 包 括： 向用户终端发送携带一个以上待测载波组信息的消息， 指示所述用户终 端从所述一个以上待测载波组包含的待测载波中选取目标载波， 对该目标载 波所在的相邻小区集的信号质量进行检测。
本发明实施例提供的信号质量的检测方法， 能够将载波聚合系统中相邻 小区集使用的待测载波以一个以上待测载波组信息的形式发送给用户终端， 指示所述用户终端从每个待测载波组中选取目标载波， 对该目标载波所在的 相邻小区集的信号质量进行测量， 解决了现有技术用户终端需要对相邻小区 集使用的每个载波信号质量进行测量， 造成测量负担以及耗电量大等问题。 本发明实施例提供的技术方案， 用户终端只需要对待测载波组中的目标载波 的信号质量进行测量， 减小了测量负担并节省了资源， 提高了测量速度。
与上述方法相对应地， 如图 1 所示， 本发明另一个实施例还提供一种信 号质量的检测方法， 应用在载波聚合系统中， 包括：
步骤 101 , 接收基站发送的携带一个以上待测载波组信息的消息； 步骤 102 , 从每个待测载波组中选取目标载波；
步骤 103 , 对所述目标载波所在的相邻小区集的信号质量进行检测。
本发明实施例提供的信号质量的检测方法， 能够根据基站发送的一个以 上待测载波组信息， 从每个待测载波组中选取目标载波， 并对该目标载波所 在的相邻小区集的信号质量进行测量， 解决了现有技术用户终端需要对相邻 小区集使用的每个载波信号质量进行测量， 造成测量负担以及耗电量大等问 题。 本发明实施例提供的技术方案， 用户终端只需要对待测载波组中的目标 载波的信号质量进行测量， 减小了测量负担并节省了资源， 提高了测量速度。
为了使本领域技术人员能够更清楚地理解本发明实施例提供的技术方 案， 下面通过具体的实施例对以上所述的信号质量的检测方法进行详细说明。
如图 2所示， 本发明又一个实施例提供的信号质量的检测方法， 应用在 载波聚合系统中， 包括：
步骤 201 ,基站对相邻小区集的待测载波进行分组， 获得一个以上待测载 波组。
在本实施例中， 基站可以根据待测载波的频率特性和所属小区集， 对所 述待测载波进行分组。 例如：
如果待测载波 F1在 UE当前服务小区集（或驻留小区集）相邻的任何一 个小区集都没有聚合使用， 则将该待测载波 F1单独划分为一个待测载波组； 如果 UE当前服务小区集 (或驻留小区集）的相邻小区集中全部聚合使用 多个载波， 如载波 F2、 载波 F3和载波 F4, 此时， 如果载波 F2、 载波 F3和 载波 F4的频率特性相似， 则基站可以将所述载波 F2、 载波 F3和载波 F4划 分为同一个待测载波组， 如果载波 F2、 载波 F3和载波 F4的频率特性不同， 如载波 F2和载波 F3属于同一个波段， 载波 F4属于另一个波段， 且两个波段 的频率差较大， 则基站可以将所述载波 F2和载波 F3划分为一个待测载波组， 将所述载波 F4划分为另一个待测载波组；
如图 3所示，如果 UE当前服务小区集（或驻留小区集）的相邻小区集（小 区集 1至小区集 3 ) 中的全部聚合使用载波 F2、 载波 F3和载波 F4, 其中， 部分聚合的小区集（小区集 1和小区集 2 )还聚合使用载波 F5 , 并且所述载 波 F5与载波 F2、载波 F3和载波 F4的频率特性相似， 则基站可以将载波 F2、 载波 F3、 载波 F4和载波 F5划分为同一个待测载波组， 也可以将载波 F2、 载 波 F3和载波 F4划分为同一个待测载波组，将载波 F5划分为另一个待测载波 组；
如图 4所示，如果 UE当前服务小区集（或驻留小区集）的相邻小区集（小 区集 1和小区集 2 ) 中的全部聚合使用载波 F2、 载波 F3和载波 F4, 全部或 部分聚合的小区集（小区集 2 )还使用载波 F6 , 某些单载波的小区也使用载 波 F6, 并且所述载波 F6与载波 F2、 载波 F3和载波 F4的频率特性相似， 则 基站可以将载波 F2、 F3、 F4和 F6划分为同一个待测载波组， 也可以将载波 F2、 F3和 F4划分为同一个待测载波组，将载波 F6划分为另一个待测载波组； 如图 5所示， 如果 UE当前服务小区集（或驻留小区集）的相邻小区集中 的一部分小区集（小区集 1和小区集 2 )聚合使用载波 F2、 载波 F3和载波 F4, 另一部分小区集（小区集 3 )聚合使用载波 F5和载波 F6, 并且， 所述载 波 F2至 F6频率特性相似， 则基站可以将载波 F2、 载波 F3和载波 F4划分为 同一个待测载波组， 将载波 F5和载波 F6划分为另一个待测载波组；
如图 6所示，如果 UE当前服务小区集（或驻留小区集）的相邻小区集（小 区集 1至小区集 4 )全部聚合使用载波 F2和载波 F3 ,其中，一部分小区集（小 区集 1和小区集 2 )还聚合使用载波 Fl , —部分小区集（小区集 4 )还聚合使 用载波 F4和载波 F5, 且所述载波 F1至载波 F5的频率特性相似， 则基站可 以将载波 F1至载波 F5划分为同一个待测载波组；
如图 7所示， 如果 UE当前服务小区集（或驻留小区集）的相邻小区集中 一部分小区集（小区集 1至小区集 4 )聚合使用载波 F2和载波 F3 , 其中， 一 部分小区集（小区集 1和小区集 2 )还聚合使用载波 F1 , —部分小区集（小 区集 4 )还聚合使用载波 F4和载波 F5 , 另一部分小区集（小区集 5 ) 聚合使 用载波 F4和载波 F5, 且所述载波 F1至载波 F5的频率特性相似， 则基站可 以将载波 F1至载波 F5划分为同一个待测载波组， 也可以将载波 F1至 F3划 分为一个待测载波组， 将载波 F4和载波 F5划分为另一个待测载波组；
当然， 以上的分组方法仅为举例， 在实际的使用过程中基站还可以通过 其他方式对相邻小区的待测载波进行分组， 此处不对每种情况进行——赘述。
步骤 202, 基站向 UE发送携带所述一个以上待测载波组信息的消息， 可 以分为两种情况：
1、基站向空闲状态的 UE发送携带所述一个以上待测载波组信息的消息， 其中， 所述携带一个以上待测载波组信息的消息具体可以为系统消息。
具体地， 所述待测载波组信息可以携带在所述系统消息的测量载波组信 息列表中； 或者， 如果所述系统消息携带当前小区的载波信息， 则所述待测 载波组信息可以携带在所述系统消息的待测载波组信息指示位中， 在本实施 例中， 所述待测载波组信息指示位用 lbit表示， 指示所述待测载波组包含的 待测载波信息是否与当前小区的载波信息相同， 例如： 0表示相同， 1表示不 同， 如果所述待测载波组包含的待测载波信息与当前小区的载波信息不同， 则系统消息中还需要携带所述载波组信息列表。
在本实施例中， 所述载波组信息列表可以携带待测载波信息， 所述待测 载波信息可以用一一列举的形式携带， 或者， 如果所述系统中携带当前小区 的载波信息， 则所述待测载波信息也可以为与当前小区的载波信息区别的载 波信息； 所述载波组信息列表中还可以携带待测载波组或者待测载波的优先 级信息， 目标 /非目标载波指示信息， 待测相邻小区所在载波， 小区标识等信 息中的任意一种或组合， 例如：
如果 UE当前服务小区集（或驻留小区集）的相邻小区集如图 3所示， 且 步骤 201中基站将载波 F2、载波 F3、 载波 F4和载波 F5划分为同一个待测载 波组， 则此时， 由于载波 F5没有包含 UE当前服务小区集（或驻留小区集） 的全部相邻小区集，所以在基站向 UE发送的载波组信息列表中还需要为所述 载波 F5携带目标 /非目标载波指示信息， 通过该目标 /非目标载波指示信息指 示载波 F5为非目标载波；
如果 UE当前服务小区集（或驻留小区集）的相邻小区集如图 6所示， 且 步骤 201中基站将载波 F1至载波 F5划分为同一个待测载波组， 则此时， 由 于载波 Fl、载波 F4和载波 F5没有包含 UE当前服务小区集（或驻留小区集） 的全部相邻小区集，所以在基站向 UE发送的载波组信息列表中还需要为所述 载波 Fl、 载波 F4和载波 F5携带目标 /非目标载波指示信息， 通过该目标 /非 目标载波指示信息指示载波 Fl、 载波 F4和载波 F5为非目标载波， 或者， 由 于载波 F2和 F3包含 UE当前服务小区集（或驻留小区集） 的全部相邻小区 集，所以在基站向 UE发送的载波组信息列表中还可以为所述载波 F2和 /或载 波 F3携带目标 /非目标载波指示信息， 通过该目标 /非目标载波指示信息指示 载波 F2和 /或载波 F3为目标载波；
如果 UE当前服务小区集（或驻留小区集）的相邻小区集如图 7所示， 且 步骤 201中基站将载波 F1至载波 F5划分为同一个待测载波组， 则此时， 由 于 UE当前服务小区集（或驻留小区集） 的大部分相邻小区集均包含载波 F2 和 F3 , 所以基站向 UE发送的载波组信息列表中还可以为所述载波 F2和 /或 载波 F3携带目标 /非目标载波指示信息， 通过该目标 /非目标载波指示信息指 示载波 F2和 /或载波 F3为目标载波， 并且， 由于小区集 5仅包含了载波 F4 和 F5 , 则基站向 UE发送的载波组信息列表中还需要为载波 F4和 /或 F5携带 待测相邻小区集载波和 /或标识，如小区集 5的标识等，指示 UE测量小区集 5 的载波 F4和 /或 F5的信号质量；
在以上的示例中， 所述目标 /非目标载波指示信息可以用 lbit表示，其中， 0可以表示非目标载波， 1可以表示目标载波。
当然， 以上所述的载波组信息列表携带信息的情况仅为具体的举例， 基 站还可以根据实际的需要在所述载波组信息列表中携带其他相关信息， 此处 不对每种情况进行——介绍。
值得说明的是，在载波聚合系统中， LTE-A UE既可以驻留在 LTE-A载波 所在的小区， 也可以驻留在 LTE载波所在的小区， 然而， LTE UE只能驻留在 LTE载波所在的小区， 为了能够给 LTE UE预留出 LTE载波资源， 基站需要 指示 LTE-A UE不要对 LTE载波的信号质量进行测量， 或者指示 LTE-A UE 优先对 LTE-A载波的信号质量进行测量。 为了使 LTE-A UE能够不对 LTE载 波的信号质量进行测量， 或者优先对 LTE-A载波的信号质量进行测量， 所述 系统消息中还可以携带参与聚合的 LTE载波信息指示，和 /或 LTE载波的优先 级修改策略信息。 其中， 所述参与聚合的 LTE 载波信息指示可以用于指示 LTE-AUE不选取该载波为目标载波， 即不对该载波进行信号质量测量； 所述 LTE载波的优先级修改策略信息用于指示 LTE-A UE优先选取 LTE-A载波进 行信号质量测量， 该 LTE载波的优先级修改策略信息可以为基站预先为 LTE 载波设置的较低的优先级信息， 也可以为预先设置的降低 LTE载波优先级的 调整值。
2、基站向激活状态的 UE发送携带所述一个以上待测载波组信息的消息， 其中， 所述携带一个以上待测载波组信息的消息具体可以为专用信令， 如无 线资源控制连接重配置消息 （RRC Connection Reconfiguration ), 或者无线资 源控制连接建立消息（ RRC Connection Setup ),或者无线资源控制连接重建立 消息 ( RRC Connection Re-establishment )等。
具体地， 所述待测载波组信息也可以携带在载波组信息列表和 /或待测载 波组信息指示位中，具体的实现方法可以参见基站向空闲状态的 UE发送携带 所述一个以上待测载波组信息的消息的情况， 此处不再赘述。
在本实施例中， 所述载波组信息列表可以携带待测载波信息， 该待测载 波信息可以用一一列举的形式携带， 也可以只携带与当前小区的载波信息区 别的载波信息； 所述载波组信息列表还可以携带待测载波组的测量带宽
( Measurement bandwidth )信息。 当然， 在实际的使用过程中， 所述载波组 列表还可以携带其他与信号质量测量相关的信息， 此处不对每种情况进行一
"赞述。
步骤 203， UE接收所述基站发送的携带一个以上待测载波组信息的消息。 在本实施例中， 当 UE处于空闲状态时， UE可以通过监听广播中的系统 信息获取携带的一个以上待测载波组信息； 当 UE处于激活状态时， UE可以 接收基站主动发送的携带一个以上待测载波组信息的专用信令， 也可以向基 站请求获取携带一个以上待测载波组信息的专用信令， 此处不对每种情况进 行一一赘述。
步骤 204 , UE从每个待测载波组中选取一个或多个载波作为目标载波， 可以分为两种情况：
1、 如果 UE处于空闲状态， 则 UE可以通过以下任意一种或组合的方式 从每个待测载波组中选取目标载波：
如果系统消息， 例如待测载波组信息中包含待测载波的优先级信息， 则 选取优先级最高的待测载波为目标载波；
如果所述待测载波组信息包含目标 /非目标载波指示信息， 则根据该目标 / 非目标载波指示信息选取目标载波， 具体地， 如果某个待测载波的目标 /非目 标载波指示信息为 0, 即表示该载波为非目标载波， 则选取待测载波组中其他 待测载波中的一个或多个为目标载波， 如果某个待测载波的目标 /非目标载波 指示信息为 1时， 即表示该载波为目标载波， 则选取该待测载波载波；
如果所述待测量载波组中携带参与聚合的 LTE载波信息指示， 则选取该 参与聚合的 LTE载波以外的待测载波为目标载波；
如果所述消息携带 LTE载波的优先级修改策略信息， 则根据所述 LTE载 波的优先级修改策略信息获取修改后的优先级信息， 选取优先级最高的待测 载波为目标载波；
当然， 在实际的使用过程中， UE还可以通过其他方式从每个待测载波组 中选取目标载波，例如： 通过 UE标识取模一个待测量载波组中待测载波个数 的方法选取目标载波， 或者， 如果 UE当前驻留的载波包含在待测载波组中， 则选取 UE当前驻留的载波为目标载波等。
在本实施例中， UE具体可以根据预先设置的选取策略从每个待测载波组 中选取目标载波。 UE可以预先存储一种选取策略， 并根据该选取策略选取目 标载波， UE也可以预先存储多种选取策略， 并根据基站的指示选取其中一种 选取策略， 根据该选取策略选取目标载波， UE还可以直接从基站获取选取策 略， 根据该选取策略选取目标载波。
2、 如果 UE处于激活状态， 则 UE可以通过以下任意一种或组合的方式 从每个待测载波组中选取目标载波：
选取 UE接收带宽范围内的待测载波为目标载波， 其中， 所述 UE接收带 宽范围内的待测载波可以为待测载波组中与 UE接收和发送数据的载波相同 或者频率特性相近的载波，也可以为不需要 UE在特定检测时间（该检测时间 内 UE不能够传输业务数据， 测量 Gap ) 内测量的载波等；
如果为 LTE-AUE则选取 LTE-A载波为目标载波。
当然，在实际的使用过程中，激活状态的 UE还可以通过其他方式选取目 标载波， 此处不作赘述。
同样地， UE也可以根据预先设置的选取策略从每个待测载波组中选取目 标载波， 具体实现方法可以参见以上所述， 此处不再赘述。
值得说明的是， 对于空闲状态的 UE, 网络侧可以预先为其设置默认的测 量载波， 此时， 空闲状态的 UE还需要获取所述测量载波， 并选取所述测量载 波为目标载波。在本实施例中， 所述空闲状态的 UE获取测量载波的方法可以 包括两种： 一种是， UE从预先存储的测量载波信息中获取所述预先设置的测 量载波； 另一种是， UE接收网络侧发送该 UE专用的测量载波列表， 从该列 表中获取测量载波信息，例如， 该测量载波列表可以通过空闲状态 UE寻呼区 更新过程， 通过专用信令通知 UE。 当然， 在实际的使用过程中， UE还可以 通过其他方式获取测量载波信息， 此处不做赞述。
步骤 205, UE对所述目标载波所在的相邻小区集的信号质量进行测量。 如图 8所示， 当处于空闲状态时， 包括：
步骤 801 , UE确定是否需要对所述目标载波进行信号质量检测， 例如： UE 可以根据目标载波或载波组的优先级确定是否需要对该目标载波进行信 号质量检测一一如果目标载波或载波组的优先级比 UE所在载波的优先级高， 则需要对所述目标载波进行信号质量检测， 否则不对该目标载波进行信号质 量检测； 再如： UE可以根据当前小区的信号质量确定是否对目标载波的信号 质量进行检测一一如果当前小区的信号质量低于预先设置的信号质量门限 值， 对目标载波的信号质量进行检测， 否则不对该目标载波的信号质量进行 测量。
当然， 以上两种情况仅为举例， 实际使用时并不仅限于此， UE还可以根 据需要使用上述两种方法的组合方式确定是否需要对所述目标载波进行信号 质量检测， 或者， 通过其他方式确定， 此处不对每种情况进行——赘述。
步骤 802, 如果目标载波上存在小区集， 则 UE对该目标载波的信号质量 进行测量。
在本实施例中， 如果 UE处于空闲状态， 则 UE可以直接对所述目标载波 的信号质量进行测量； 如果 UE处于激活状态， 由于载波聚合小区的频带带宽 一般高于普通单载波小区的带宽，例如： LTE-A小区最大的带宽为 100M, LTE 小区最大的带宽为 20M, 为了满足载波聚合小区的带宽要求， 可以预先设置 更大的信号质量测量带宽， 如： 100RB, 则此时， UE具体可以根据待测载波 组的频带带宽信息和 /或载波组的频带带宽与频带测量带宽的对应关系， 选取 预先设置的更大的信号质量测量带宽， 对所述目标载波所在的相邻小区集信 号质量进行检测。
在本实施例中， 如果 UE没有检测到目标载波上存在满足小区选择 /重选 或激活态测量上报事件的要求的小区或者小区集，则 UE可以停止对目标载波 所在的待测载波组中的任何一个待测载波进行信号质量检测， UE也可以重新 执行步骤 204 , 从所述待测载波组中选取其他目标载波， 继续测量。
对于空闲状态的 UE, 可以根据目标载波的信号质量检测结果进行相应的 操作， 如小区重选或者小区切换等； 对于激活状态的 UE, 需要将目标载波的 信号质量检测结果上报给基站， 由基站对该 UE进行相应操作。
值得说明的是， 在实施例中， 所述步骤 203之后步骤 204之前， 还可以 包括 UE判断是否选取 LTE载波作为目标载波的步骤。具体地，如果 UE判断 LTE-A载波信号质量的检测结果都低于预先设置的信号质量检测阈值， UE选 取 LTE载波作为目标载波； 或者， 如果 UE判断当前服务小区的信号质量检 测结果低于预先设置的信号质量检测阈值， UE选取 LTE载波作为目标载波， 其中， 所述信号质量检测阈值信息可以从网络侧向 UE发送的专用信令中获 取。 当然， 在实际的使用过程中， UE还可以通过其他方式判断是否选取 LTE 载波作为目标载波， 此处不对每种情况进行——赘述。
本发明实施例提供的信号质量的检测方法， 基站能够将载波聚合系统中 相邻小区集使用的待测载波按照频率特性和所属小区， 划分为一个以上待测 载波组， 待测载波组中的待测载波特性相近， UE只需要从每个待测载波组中 选取一个或多个目标载波， 对该目标载波的信号质量进行测量， 由于待测载 波组中的待测载波特性相近， 所以目标载波的信号质量可以近似认为是待测 载波组中其他待测载波的信号质量，减小了 UE的检测负担，节省了检测资源， 并提高了检测效率，解决了现有技术 UE需要对相邻小区集使用的每个载波信 号质量进行测量， 造成测量负担以及耗电量大等问题。 本发明再一个实施例还提供一种信号质量的检测方法， 如图 9所示， 包 括：
步骤 901 ,基站对相邻小区集的待测载波进行分组， 获得一个以上待测载 波组， 其具体的实现方法可以参见图 2所示的步骤 201所述， 此处不作赘述。
步骤 902,基站从每个待测载波组中选取目标载波， 其具体的实现方法可 以参见图 2所示的步骤 204所述， 此处不作赘述。
步骤 903 , 基站向 UE发送携带所述目标载波信息的消息， 包括： 如果所述 UE为空闲状态， 则基站向该 UE发送系统消息， 在该系统消息 中携带目标载波的频率信息， 或者优先级信息， 或者待测相邻小区集载波和 / 或标识等；
如果所述 UE为激活状态， 则基站向该 UE发送专用信令， 在该专用信令 中携带目标载波的频率信息， 或者测量带宽等。
步骤 904, UE接收携带所述目标载波信息的消息， 对所述目标载波所在 的相邻小区集的信号质量进行测量， 其具体实现方法可以参见如图 2所示的 步骤 205所示， 此处不再赘述。
本发明实施例提供的信号质量的检测方法， 基站能够将载波聚合系统中 相邻小区集使用的待测载波按照频率特性和所属小区， 划分为一个以上待测 载波组， 并从每个待测载波组中选取目标载波，指示 UE对该目标载波的信号 质量进行测量， 由于待测载波组中的待测载波特性相近， 所以目标载波的信 号质量可以近似认为是待测载波组中其他待测载波的信号质量，减小了 UE的 检测负担， 节省了检测资源， 并提高了检测效率， 解决了现有技术 UE需要对 相邻小区集使用的每个载波信号质量进行测量， 造成测量负担以及耗电量大 等问题。
与上述方法相对应地， 如图 10所示， 本发明实施例还提供一种基站， 应 用在载波聚合系统中， 包括：
发送单元 1001 , 用于向用户终端发送携带一个以上待测载波组信息的消 息， 该消息用于指示所述用户终端从所述一个以上待测载波组包含的待测载 波中选取目标载波， 对该目标载波所在的相邻小区集的信号质量进行检测。
在本实施例中， 所述发送单元 1001具体的发送方法可以参见如图 2所示 的步骤 202所述， 此处不作赘述。
进一步地， 所述基站还可以包括：
分组单元 1002, 用于根据待测载波的频率特性和所属小区， 将所述待测 载波划分为一个以上待测载波组。
在本实施例中， 所述分组单元 1002对待测载波的具体分组方法可以参见 如图 2所示的步骤 201所述， 此处不作赘述。
本发明实施例提供的基站， 能够将载波聚合系统中相邻小区集使用的待 测载波以一个以上待测载波组信息的形式发送给用户终端， 指示所述用户终 端从每个待测载波组中选取目标载波， 对该目标载波所在的相邻小区的信号 质量进行测量， 解决了现有技术用户终端需要对相邻小区集使用的每个载波 信号质量进行测量， 造成测量负担以及耗电量大等问题。 本发明实施例提供 的技术方案， 用户终端只需要对待测载波组中的目标载波的信号质量进行测 量， 减小了测量负担并节省了资源， 提高了测量速度。
如图 11所示， 本发明实施例还提供一种用户终端， 应用在载波聚合系统 中， 包括：
接收单元 1101 , 用于接收基站发送的携带一个以上待测载波组信息的消 息；
获取单元 1102,用于从所述接收单元 1101接收到的每个待测载波组中选 取目标载波；
检测单元 1103 , 用于对所述目标载波所在的相邻小区集的信号质量进行 检测。
其中， 所述获取单元 1102, 可以用于如果用户终端处于空闲状态， 通过 以下任意一种或组合的方式从每个待测载波组中选取目标载波： 如果所述待测载波组信息包含待测载波的优先级信息， 则选取优先级最 高的待测载波为目标载波，
如果所述待测载波组信息包含目标 /非目标载波指示信息， 则根据该目标 / 非目标载波指示信息选取目标载波，
如果所述消息携带参与聚合的长期演进载波信息指示， 则选取该参与聚 合的长期演进载波以外的待测载波为目标载波，
如果所述待测载波组中包含当前用户驻留的载波， 则选择该待测载波作 为目标载波，
如果所述消息携带长期演进载波的优先级修改策略信息， 则根据所述长 期演进载波的优先级修改策略信息获取修改后的优先级信息， 选取优先级最 高的待测载波为目标载波；
如果用户终端处于激活状态， 通过以下任意一种或组合的方式从每个待 测载波组中选取目标载波：
选取用户终端接收带宽范围内的待测载波为目标载波，
选择用户当前接收和 /或发送数据的载波为目标载波，
选取长期演进增强载波为目标载波。
进一步地， 如图 12所示， 所述用户终端还可以包括：
判断单元 1104, 用于判断是否选取长期演进载波作为目标载波， 具体实 现方法可以参见如图 2所示的步骤 204所示， 此处不作赘述。
进一步地， 如果用户终端处于空闲状态， 所述获取单元 1102, 还用于获 取预先设置的默认的测量载波， 选取所述测量载波为目标载波， 具体实现方 法可以参见如图 2所示的步骤 204所示， 此处不作赘述。
进一步地， 所述检测单元 1103 , 具体可以用于根据预先设置的载波聚合 系统的信号质量测量带宽， 对所述目标载波所在的相邻小区信号质量进行检 测，， 具体实现方法可以参见如图 2所示的步骤 205所示， 此处不作赘述。
本发明实施例提供的用户终端， 能够根据基站发送的一个以上待测载波 组信息， 从每个待测载波组中选取目标载波， 并对该目标载波所在的相邻小 区集的信号质量进行测量， 解决了现有技术用户终端需要对相邻小区使用的 每个载波信号质量进行测量， 造成测量负担以及耗电量大等问题。 本发明实 施例提供的技术方案， 用户终端只需要对待测载波组中的目标载波的信号质 量进行测量， 减小了测量负担并节省了资源， 提高了测量速度。
本发明实施例还提供一种信号质量的检测系统， 应用在载波聚合系统中， 包括： 基站， 用于与用户终端通信， 所述基站， 还用于向用户终端发送携带 一个以上待测载波组信息的消息， 该消息用于指示所述用户终端从所述一个 以上待测载波组包含的待测载波中选取目标载波， 对该目标载波所在的相邻 小区集的信号质量进行检测。
在本实施例中， 所述基站的具体可以参见如图 10所示， 此处不作赘述。 本发明实施例提供的信号质量的检测系统， 基站能够将载波聚合系统中 相邻小区集使用的待测载波以一个以上待测载波组信息的形式发送给用户终 端， 由所述用户终端从每个待测载波组中选取目标载波， 对该目标载波所在 的相邻小区的信号质量进行测量， 解决了现有技术用户终端需要对相邻小区 集使用的每个载波信号质量进行测量， 造成测量负担以及耗电量大等问题。 本发明实施例提供的技术方案， 用户终端只需要对待测载波组中的目标载波 的信号质量进行测量， 减小了测量负担并节省了资源， 提高了测量速度。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤 是可以通过程序来指令相关的硬件完成， 所述的程序可以存储于一计算机可 读存储介质中， 如 ROM/RAM、 磁碟或光盘等。
以上所述， 仅为本发明的具体实施方式， 但本发明的保护范围并不局限 于此， 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易 想到变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保护 范围应所述以权利要求的保护范围为准。

Claims

权利 要求 书
1、 一种信号质量的检测方法， 应用在载波聚合系统中， 其特征在于， 包括： 向用户终端发送携带一个以上待测载波组信息的消息， 该消息用于指示所 述用户终端从所述一个以上待测载波组包含的待测载波中选取目标载波， 对该 目标载波所在的相邻小区集的信号质量进行检测。
2、 根据权利要求 1所述的方法， 其特征在于，
所述一个以上待测载波组信息携带在载波组信息列表中； 和 /或
如果所述消息携带当前小区的载波信息， 所述一个以上待测载波组信息携 带在待测载波组信息指示位中， 该指示位用于指示所述待测载波组包含的待测 载波信息是否与所述当前小区的载波信息相同。
3、 根据权利要求 2所述的方法， 其特征在于，
如果所述用户终端处于空闲状态， 所述载波组信息列表中携带待测载波信 息， 还包括以下任意一种信息或组合：
待测载波组或者待测载波的优先级信息， 目标 /非目标载波指示信息， 待测 相邻小区所在载波， 小区标识；
如果所述用户终端处于激活状态， 所述载波组信息列表中携带待测载波信 息， 或者待测载波信息和待测载波组的测量带宽信息。
4、 根据权利要求 1-3中任意一项所述的方法， 其特征在于， 如果所述待测 载波包括长期演进载波， 则所述消息还携带参与聚合的长期演进载波信息指示， 和 /或长期演进载波的优先级修改策略信息。
5、 根据权利要求 1所述的方法， 其特征在于， 还包括：
根据待测载波的频率特性和所属小区集， 将所述待测载波划分为一个以上 待测载波组。
6、 一种信号质量的检测方法， 应用在载波聚合系统中， 其特征在于， 包括： 接收基站发送的携带一个以上待测载波组信息的消息；
从每个待测载波组中选取目标载波； 对所述目标载波所在的相邻小区集的信号质量进行检测。
7、 根据权利要求 6所述的方法， 其特征在于，
如果用户终端处于空闲状态， 则通过以下任意一种或组合的方式从每个待 测载波组中选取目标载波：
如果所述待测载波组信息包含待测载波的优先级信息， 则选取优先级最高 的待测载波为目标载波，
如果所述待测载波组信息包含目标 /非目标载波指示信息， 则根据该目标 /非 目标载波指示信息选取目标载波，
如果所述消息携带参与聚合的长期演进载波信息指示， 则选取该参与聚合 的长期演进载波以外的待测载波为目标载波，
如果所述待测载波组中包含当前用户驻留的载波， 则选择该待测载波作为 目标载波，
如果所述消息携带长期演进载波的优先级修改策略信息， 则根据所述长期 演进载波的优先级修改策略信息获取修改后的优先级信息， 选取优先级最高的 待测载波为目标载波；
如果用户终端处于激活状态， 则通过以下任意一种或组合的方式从每个待 测载波组中选取目标载波：
选取用户终端接收带宽范围内的待测载波为目标载波，
选择用户当前接收和 /或发送数据的载波为目标载波，
选取长期演进增强载波为目标载波。
8、 根据权利要求 6所述的方法， 其特征在于， 还包括：
判断是否选取长期演进载波作为目标载波。
9、 根据权利要求 6所述的方法， 其特征在于， 还包括：
如果用户终端处于空闲状态， 获取预先设置的默认的测量载波；
选取所述测量载波为目标载波。
10、 根据权利要求 9所述的方法， 其特征在于， 所述获取预先设置的默认 的测量载波包括：
从预先存储的测量信息中获取所述预先设置的测量载波； 或者
接收网络侧发送的测量载波列表， 从该测量载波列表中获取测量载波。
11、 根据权利要求 7 所述的方法， 其特征在于， 所述对所述目标载波所在 的相邻小区信号质量进行检测包括：
根据预先设置的载波聚合系统的信号质量测量带宽， 对所述目标载波所在 的相邻小区信号质量进行检测。
12、 一种基站， 应用在载波聚合系统中， 其特征在于， 包括：
发送单元， 用于向用户终端发送携带一个以上待测载波组信息的消息， 该 消息用于指示所述用户终端从所述一个以上待测载波组包含的待测载波中选取 目标载波， 对该目标载波所在的相邻小区集的信号质量进行检测。
13、 根据权利要求 12所述的基站， 其特征在于， 还包括：
分组单元， 用于根据待测载波的频率特性和所属小区， 将所述待测载波划 分为一个以上待测载波组。
14、 一种用户终端， 应用在载波聚合系统中， 其特征在于， 包括： 接收单元， 用于接收基站发送的携带一个以上待测载波组信息的消息； 获取单元， 用于从所述接收单元接收到的每个待测载波组中选取目标载波； 检测单元， 用于对所述目标载波所在的相邻小区集的信号质量进行检测。
15、 根据权利要求 14所述的用户终端， 其特征在于，
所述获取单元， 用于如果用户终端处于空闲状态， 通过以下任意一种或组 合的方式从每个待测载波组中选取目标载波：
如果所述待测载波组信息包含待测载波的优先级信息， 则选取优先级最高 的待测载波为目标载波，
如果所述待测载波组信息包含目标 /非目标载波指示信息， 则根据该目标 /非 目标载波指示信息选取目标载波，
如果所述消息携带参与聚合的长期演进载波信息指示， 则选取该参与聚合 的长期演进载波以外的待测载波为目标载波，
如果所述待测载波组中包含当前用户驻留的载波， 则选择该待测载波作为 目标载波，
如果所述消息携带长期演进载波的优先级修改策略信息， 则根据所述长期 演进载波的优先级修改策略信息获取修改后的优先级信息， 选取优先级最高的 待测载波为目标载波；
如果用户终端处于激活状态， 通过以下任意一种或组合的方式从每个待测 载波组中选取目标载波：
选取用户终端接收带宽范围内的待测载波为目标载波，
选择用户当前接收和 /或发送数据的载波为目标载波，
选取长期演进增强载波为目标载波。
16、 根据权利要求 14所述的用户终端， 其特征在于， 还包括：
判断单元， 用于判断是否选取长期演进载波作为目标载波。
17、 根据权利要求 14所述的用户终端， 其特征在于， 如果用户终端处于空 闲状态， 所述获取单元， 还用于获取预先设置的默认的测量载波， 选取所述测 量载波为目标载波。
18、 根据权利要求 14所述的用户终端， 其特征在于，
所述检测单元， 用于根据预先设置的载波聚合系统的信号质量测量带宽， 对所述目标载波所在的相邻小区信号质量进行检测。
19、 一种信号质量的检测系统， 应用在载波聚合系统中， 包括基站， 用于 与用户终端通信， 其特征在于， 所述基站， 还用于向用户终端发送携带一个以 上待测载波组信息的消息， 该消息用于指示所述用户终端从所述一个以上待测 载波组包含的待测载波中选取目标载波， 对该目标载波所在的相邻小区集的信 号质量进行检测。
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