WO2014121476A1 - Procédé, dispositif, et système de mesure de qualité de signal - Google Patents

Procédé, dispositif, et système de mesure de qualité de signal Download PDF

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Publication number
WO2014121476A1
WO2014121476A1 PCT/CN2013/071480 CN2013071480W WO2014121476A1 WO 2014121476 A1 WO2014121476 A1 WO 2014121476A1 CN 2013071480 W CN2013071480 W CN 2013071480W WO 2014121476 A1 WO2014121476 A1 WO 2014121476A1
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WO
WIPO (PCT)
Prior art keywords
reference signal
signal
signal quality
quality
timer
Prior art date
Application number
PCT/CN2013/071480
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English (en)
Chinese (zh)
Inventor
蔺波
时洁
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 CN201380004583.9A priority Critical patent/CN104106281B/zh
Priority to PCT/CN2013/071480 priority patent/WO2014121476A1/fr
Publication of WO2014121476A1 publication Critical patent/WO2014121476A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/373—Predicting channel quality or other radio frequency [RF] parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, apparatus, and system for measuring signal quality.
  • the network side needs to make corresponding configurations according to the signal quality measurement results reported by the mobile terminal, such as switching links, deleting links with poor signal quality, and increasing links with good signal quality.
  • the network side deploys multiple access points to provide services to the mobile terminals, and one or more antennas can be configured on the access points, and Selecting an antenna port on the appropriate access point to provide services to the mobile terminal ensures a high rate of data transmission.
  • the UE may be in the coverage of multiple antenna ports, and the UE may choose to use some of the appropriate antenna ports according to the geographical location, that is, due to the difference in signal quality caused by the proximity of other antenna ports.
  • Wireless communication In the prior art, in order to evaluate the proximity of the UE and the antenna port, or the signal quality between the antenna port and the antenna port, the CSI-RS (Channel State Information-Reference Signal) matching the antenna port measured by the UE is used. Or the quality of the reference signal such as CRS (Cell-specific Reference S i gna 1).
  • CRS Cell-specific Reference S i gna 1
  • the mobile terminal In order to ensure a high rate of data transmission, the mobile terminal detects the signal quality of the candidate antenna port and the antenna port that is transmitting data, and then reports the network side, so that the network side can make the corresponding link configuration to ensure the antenna with the best signal quality.
  • the port provides data services for the mobile terminal.
  • the inventors found that in the prior art, at least the following technical problems exist in the prior art: Although the reference signal of the alternate antenna port is better than the reference signal of the antenna port that is transmitting data, the absolute value of the reference signal of the alternate antenna port is not high, so the network side does not perform any operation according to the measurement information reported by the mobile terminal. That is, the measurement information reported by the mobile terminal is invalid, which increases the resource overhead of the mobile terminal and consumes resources of the air interface.
  • Embodiments of the present invention provide a method, apparatus, and system for measuring signal quality, which solves the technical problem that the measurement information reported by the mobile terminal is invalid in the prior art, increases the resource overhead of the mobile terminal, and consumes air interface resources.
  • a method of measuring signal quality including
  • the measurement report triggering condition is: the target reference signal set has a target reference signal whose signal quality is lower than the signal quality of the candidate reference signal; the measurement result includes the signal quality An identifier of an antenna port that is lower than a target reference signal of the candidate reference signal and/or an identifier of an antenna port of the candidate reference signal, such that the network side configures an antenna port for the mobile terminal according to the measurement result.
  • the signal quality is lower than the target reference signal set of the candidate reference signal, and specifically includes:
  • a signal quality of the target reference signal having the best signal quality in the target reference signal set is lower than a signal quality of the candidate reference signal and the signal quality and signal quality of the candidate reference signal are the best
  • the difference in signal quality of the reference signal is not less than the preset parameter value; or ⁇ and
  • a signal quality of the target reference signal specified in the target reference signal set is lower than a signal quality of the candidate reference signal and a signal quality of the candidate reference signal and a signal quality of the specified target reference signal
  • the difference is not less than the preset parameter value; or ⁇ and
  • a signal of the target reference signal having the worst signal quality among the target reference signal sets The quality is lower than the signal quality of the candidate reference signal and the difference between the signal quality of the candidate reference signal and the signal quality of the target reference signal having the worst signal quality is not less than a preset parameter value; or ⁇ and
  • the signal quality of the target reference signal of any one of the signal sets of the target reference signal is lower than the signal quality of the candidate reference signal.
  • the target reference signal set includes:
  • the method before determining whether the signal quality of the candidate reference signal is higher than a signal threshold configured by the network side, the method further includes:
  • the method further includes: eliminating the candidate reference a first error of the signal quality of the signal, the corrected signal quality of the candidate reference signal; the first error and the motion speed of the mobile terminal, the transmit power of the mobile terminal, and the frequency to which the candidate reference signal belongs a priority, one or more related to a cell to which the candidate reference signal belongs;
  • the measurement report triggering condition if the measurement report triggering condition is met, the measurement result is reported to the network side, specifically including :
  • the method further includes:
  • the first timer is turned off if the signal quality of the candidate reference signal is equal to or lower than the signal quality of the first reference signal during the time period of the first timer.
  • the method further includes:
  • the method further includes:
  • the second timer is turned off if the signal quality of the candidate reference signal is equal to or lower than the signal quality of the second reference signal during the time period of the second timer.
  • the measurement report triggering condition if the measurement report triggering condition is met, the measurement result is reported to the network side, specifically including :
  • the network side reports the measurement result; and / or If the signal quality of the candidate reference signal is higher than the signal quality of the worst-quality reference signal in the target reference signal set at any sampling time in the time period of the third timer, The network side reports the measurement result.
  • the target reference signal further includes: a target reference signal of the cell or a target reference signal of the small cell;
  • the candidate reference signal also includes an alternate reference signal for the neighbor cell or an alternate reference signal for the neighboring small cell.
  • an apparatus for measuring signal quality comprising:
  • a determining unit configured to determine whether a signal quality of the candidate reference signal is higher than a signal threshold configured on the network side; when the signal threshold configured on the network side is higher than the signal threshold configured by the network side, if the trigger condition of the measurement report is met, the network side is Evaluating the measurement result; the measurement report triggering condition is: a target reference signal having a signal quality lower than a signal quality of the candidate reference signal in the target reference signal set; the measurement result including the signal quality being lower than the preparation
  • the identifier of the antenna port of the target reference signal of the reference signal and/or the identifier of the antenna port of the candidate reference signal is selected such that the network side configures the antenna port for the mobile terminal according to the measurement result.
  • the signal quality is lower than the target reference signal set of the candidate reference signal, and specifically includes:
  • a signal quality of the target reference signal having the best signal quality in the target reference signal set is lower than a signal quality of the candidate reference signal and the signal quality and signal quality of the candidate reference signal are the best
  • the difference in signal quality of the reference signal is not less than the preset parameter value; or ⁇ and
  • a signal quality of the target reference signal specified in the target reference signal set is lower than a signal quality of the candidate reference signal and a signal quality of the candidate reference signal and a signal quality of the specified target reference signal
  • the difference is not less than the preset parameter value; or ⁇ and
  • a signal of the target reference signal having the worst signal quality among the target reference signal sets The quality is lower than the signal quality of the candidate reference signal and the difference between the signal quality of the candidate reference signal and the signal quality of the target reference signal having the worst signal quality is not less than a preset parameter value; or ⁇ and
  • the signal quality of the target reference signal of any one of the signal sets of the target reference signal is lower than the signal quality of the candidate reference signal.
  • the target reference signal set includes:
  • the device further includes:
  • the receiving unit is configured to receive the measurement configuration command sent by the network side before the determining unit determines whether the signal quality of the candidate reference signal is higher than the signal threshold configured by the network side.
  • the method further includes: an error cancellation subunit, configured to cancel a first error of a signal quality of the candidate reference signal, to obtain the candidate reference signal Corrected signal quality; the first error and the motion speed of the mobile terminal, the transmission power of the mobile terminal, the frequency priority to which the candidate reference signal belongs, or one of the cells to which the candidate reference signal belongs or Multiple correlations;
  • a determining subunit configured to determine whether the corrected signal quality of the candidate reference signal is higher than a signal threshold configured by the network side.
  • the reporting unit includes:
  • a signal determining subunit configured to determine whether a first reference signal having a signal quality lower than a signal quality of the candidate reference signal occurs in the target reference signal set;
  • a timer opening subunit configured to: when the signal determining subunit determines that the first reference signal occurs, turn on the first timer;
  • a signal quality determining subunit configured to determine whether a signal quality of the candidate reference signal is higher than a signal quality of the first reference signal at each sampling time in a time period of the first timer;
  • a reporting subunit configured to: when the signal quality determining subunit determines that the signal quality of the candidate reference signal is higher than the first time in each sampling time of the first timer Referring to the signal quality of the signal, reporting the measurement result to the network side; the timer closing subunit, configured to: when the signal quality determining subunit determines that the signal quality of the candidate reference signal is at the first The first timer is turned off when the timing period of the timer is equal to or lower than the signal quality of the first reference signal.
  • the signal determining subunit is further configured to determine the target reference after the first timer is started Whether a second reference signal having a signal quality lower than a signal quality of the candidate reference signal occurs in the signal set;
  • the timer is turned on, and is further configured to: when the signal determining subunit determines that the second reference signal appears, turn on a second timer;
  • the signal quality determining subunit is further configured to determine whether the signal quality of the candidate reference signal is higher than the second reference signal at each sampling time in the time period of the second timer Signal quality;
  • the reporting subunit is further configured to: when the signal quality determining subunit determines that the signal quality of the candidate reference signal is higher than each of the sampling times in the time period of the second timer When the signal quality of the second reference signal is described, the measurement result is reported to the network side;
  • a timer closing subunit further configured to: when the signal quality determining subunit determines that a signal quality of the candidate reference signal is equal to or lower than the second reference signal in a time period of the second timer When the signal quality is turned off, the second timer is turned off.
  • the seventh aspect in the second aspect is further configured to determine whether a third reference signal whose signal quality is lower than a signal quality of the candidate reference signal occurs in the target reference signal set;
  • the timer is turned on, and is further configured to: when the signal determining subunit determines that the third reference signal appears, turn on a third timer;
  • the signal quality determining subunit is further configured to determine whether the signal quality of the candidate reference signal is higher than any of the target reference signal sets in the time period of the third timer. Signal quality of at least one reference signal;
  • the reporting subunit is further configured to: when the signal quality determining subunit determines that the signal quality of the candidate reference signal is higher than any of the sampling times in the time period of the third timer Reporting the measurement result to the network side when the signal quality of the at least one reference signal in the target reference signal set is; and/or
  • the reporting subunit is further configured to: when the signal quality determining subunit determines that the signal quality of the candidate reference signal is higher than any of the sampling times in the time period of the third timer When the signal quality of the worst-quality reference signal in the target reference signal set is reported, the measurement result is reported to the network side.
  • the target reference signal further includes: a target reference signal of the cell or a target reference signal of the small cell;
  • the candidate reference signal also includes an alternate reference signal for the neighbor cell or an alternate reference signal for the neighboring small cell.
  • a system for measuring signal quality comprising:
  • a receiver configured to receive a signal threshold configured on the network side
  • a processor configured to determine whether a signal quality of the candidate reference signal is higher than a signal threshold configured on the network side;
  • a transmitter configured to report a measurement result to the network side when the signal quality of the candidate reference signal is higher than a signal threshold configured by the network side;
  • the measurement report trigger condition For: the signal quality in the target reference signal set is lower than the candidate a target reference signal of a signal quality of the reference signal; the measurement result comprising an identification of an antenna port whose signal quality is lower than a target reference signal of the candidate reference signal and/or an identification of an antenna port of the candidate reference signal So that the network side configures the antenna port for the mobile terminal according to the measurement result.
  • the signal quality is lower than the target reference signal set of the candidate reference signal, and specifically includes:
  • a signal quality of the target reference signal having the best signal quality in the target reference signal set is lower than a signal quality of the candidate reference signal and the signal quality and signal quality of the candidate reference signal are the best
  • the difference in signal quality of the reference signal is not less than the preset parameter value; or ⁇ and
  • a signal quality of the target reference signal specified in the target reference signal set is lower than a signal quality of the candidate reference signal and a signal quality of the candidate reference signal and a signal quality of the specified target reference signal
  • the difference is not less than the preset parameter value; or ⁇ and
  • a signal quality of the target reference signal having the worst signal quality in the target reference signal set is lower than a signal quality of the candidate reference signal and the target quality of the candidate reference signal is the worst signal quality
  • the difference in signal quality of the reference signal is not less than the preset parameter value; or ⁇ and
  • the signal quality of the target reference signal of any one of the signal sets of the target reference signal is lower than the signal quality of the candidate reference signal.
  • the target reference signal set includes:
  • the receiver The method further includes: before determining whether the signal quality of the candidate reference signal is higher than a signal threshold configured by the network side, receiving a measurement configuration command sent by the network side.
  • the processor is further configured to:
  • Determining a first error of a signal quality of the candidate reference signal obtaining a corrected signal quality of the candidate reference signal; the first error and a motion speed of the mobile terminal, a transmit power of the mobile terminal, and the preparation Selecting a frequency priority to which the reference signal belongs, and one or more of the cells to which the candidate reference signal belongs;
  • the processor is further configured to:
  • the transmitter is further configured to: if a signal quality of the candidate reference signal is higher than a signal quality of the first reference signal at each sampling time in a time period of the first timer, Reporting the measurement result to the network side;
  • the processor is further configured to: if the signal quality of the candidate reference signal is equal to or lower than a signal quality of the first reference signal in a time period of the first timer, turn off the first Timer.
  • the processor is further configured to: after the first timer is started, determine the target reference signal set Whether a second reference signal having a signal quality lower than a signal quality of the candidate reference signal occurs;
  • the transmitter is further configured to: if a signal quality of the candidate reference signal is higher than a signal quality of the second reference signal at each sampling time in a time period of the second timer, And reporting the measurement result to the network side;
  • the processor is further configured to: if the signal quality of the candidate reference signal is equal to or lower than a signal quality of the second reference signal in a time period of the second timer, turn off the second Timer.
  • the processor is further configured to:
  • the transmitter is further configured to: if a signal quality of the candidate reference signal is higher than at least one reference signal in the target reference signal set at any sampling time within a time period of the third timer Signal quality, reporting the measurement result to the network side; and/or if the signal quality of the candidate reference signal is higher than any of the time periods of the third timer The signal quality of the worst-quality reference signal in the target reference signal set is reported to the network side.
  • the target reference signal further includes: a target reference signal of the cell or a target reference signal of the small cell;
  • the candidate reference signal also includes an alternate reference signal for the neighbor cell or an alternate reference signal for the neighboring small cell.
  • Embodiments of the present invention provide a method, apparatus, and system for measuring signal quality. First, determining whether a signal quality of an alternate reference signal is higher than a signal threshold configured on a network side, when signal quality of the candidate reference signal When the signal threshold value configured on the network side is higher than the signal threshold configured on the network side, if the measurement report trigger condition is met, the measurement result is reported to the network side.
  • the threshold of the signal quality and the trigger condition of the measurement report are set, the effectiveness of the measurement information reported by the mobile terminal is improved, the resource overhead of the mobile terminal is reduced, and the resources of the air interface are saved.
  • FIG. 1 is a flowchart of a method for measuring signal quality according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of a method for measuring signal quality according to Embodiment 2 of the present invention
  • FIG. 3 is a flowchart of Embodiment 2 of the present invention
  • FIG. 4 is a flowchart of a method for measuring signal quality according to Embodiment 2 of the present invention
  • FIG. 4a is a schematic diagram of determining signal quality of an alternate reference signal according to Embodiment 1 of the present invention
  • 4b is a schematic diagram of determining signal quality of an alternate reference signal according to Embodiment 1 of the present invention
  • FIG. 5 is a block diagram of an apparatus for measuring signal quality according to Embodiment 3 of the present invention
  • FIG. 6 is a block diagram of an apparatus for measuring signal quality in Embodiment 3 of the present invention.
  • Figure 7 is a block diagram of a judging unit in an apparatus for measuring signal quality in Embodiment 3 of the present invention.
  • Figure 8 is a block diagram of a reporting unit in an apparatus for measuring signal quality in Embodiment 3 of the present invention.
  • Figure 9 is a schematic diagram of a system for measuring signal quality in Embodiment 4 of the present invention.
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division WCDMA
  • LTE Long Term Evolution
  • a mobile terminal may be called a user equipment (UE, User Equipment), a mobile station (MS, Mobile Station), and may be connected to one or more via a radio access network (eg, RAN, Radio Access Network).
  • the core network communicates.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station in WCDMA (referred to as Node ⁇ ), or may be an evolved base station in LTE (referred to as an eNB or an e-NodeB, Evolutional NodeB).
  • BTS Base Transceiver Station
  • Node ⁇ a base station in WCDMA
  • eNB evolved base station in LTE
  • e-NodeB Evolutional NodeB
  • a base station may support/manage one or more cells. When the user terminal needs to communicate with the network, it will select a cell to initiate network access.
  • One embodiment of the present invention provides a method of measuring signal quality, as shown in FIG. 1, including the following steps:
  • the network side can set the threshold to a fixed value or periodically according to the actual situation.
  • the determining whether the signal quality of the candidate reference signal is higher than the signal threshold configured on the network side may be implemented by: eliminating a first error of a signal quality of the candidate reference signal, and obtaining the candidate reference signal Corrected signal quality; the first error and the motion speed of the mobile terminal, the transmission power of the mobile terminal, the frequency priority to which the candidate reference signal belongs, or one of the cells to which the candidate reference signal belongs or A variety of related.
  • an entry condition and an exit condition are generally set to cancel a first error of the signal quality of the candidate reference signal, and the signal quality of the candidate reference signal is higher than the signal threshold of the network side configuration.
  • the specific conditions are:
  • the entry condition is . cp - Hys > Thresh
  • Mcp represents the signal quality of the selected candidate reference signal
  • H is the hysteresis parameter
  • r/ ⁇ is Threshold configured on the network side.
  • the hysteresis parameter is only one of the first errors.
  • more parameters can be introduced in the first error, for example:
  • Mcp represents the signal quality of the selected candidate reference signal
  • H is the hysteresis parameter
  • r/ ⁇ is the threshold value configured on the network side.
  • Parameters related to the signal of the candidate reference signal for example, with transmit power, subframe resources, frequency priority, cell priority, or CSI-RS (Channel State Information-Reference Signal) resource priority One or more related parameters.
  • the measurement report trigger condition is considered to be satisfied only if the above conditions have been met for a specified period of time.
  • the period of time specified here is often referred to as the trigger time.
  • the measurement report trigger condition is met, the measurement result is reported to the network side.
  • the measurement report triggering condition is: a target reference signal having a signal quality lower than a signal quality of the candidate reference signal in the target reference signal set.
  • the signal quality is lower than the target reference signal set of the candidate reference signal, and specifically may be the following conditions:
  • Condition A the signal quality of the target reference signal with the best signal quality in the target reference signal set is lower than the signal quality of the candidate reference signal and the signal quality and signal quality of the candidate reference signal are the best The difference in signal quality of the target reference signal is not less than a preset parameter value.
  • Condition B a signal quality of the target reference signal specified in the target reference signal set is lower than a signal quality of the candidate reference signal and a signal quality of the candidate reference signal is associated with the specified target reference signal The difference in signal quality is not less than the preset parameter value.
  • Condition C a signal quality of the target reference signal having the worst signal quality in the target reference signal set is lower than a signal quality of the candidate reference signal and the candidate reference signal The difference between the signal quality of the target reference signal having the worst signal quality and signal quality is not less than the preset parameter value.
  • Condition D The signal quality of the target reference signal of any one of the signal sets of the target reference signal is lower than the signal quality of the candidate reference signal.
  • the conditions A, B, C, and D can be used alone or in combination with each other.
  • the condition A is successful, the measurement result is reported to the network side.
  • the condition A and the condition B are simultaneously achieved, and the result is measured on the network side. All the measurements formed by the combination of the conditions A, B, C, and D are all within the scope of protection of the present embodiment, and are not described herein again.
  • the above-mentioned measurement report trigger condition that is, a target reference signal in which a signal quality is lower than a signal quality of the candidate reference signal in the target reference signal set, and conditions, B, C, and D also include an admission condition and an exit condition, and The measurement report trigger condition is satisfied only if the above conditions have been met for a specified period of time.
  • the segment specified here is usually called the trigger time. Entry conditions and departure conditions are as follows:
  • Entry conditions are: Mn + Ofn + Ocn-Hys > Mp + Ofp + Ocp + Off
  • M " is the signal quality of the candidate reference signal
  • ⁇ is the hysteresis parameter
  • ⁇ # is the offset value configured on the network side
  • ⁇ / " is the parameter related to the frequency of the candidate reference signal
  • the candidate reference signal is the candidate reference signal The cell and ⁇ or port related parameters of the location.
  • the signal quality of the target reference signal is a parameter related to the frequency of the target reference signal, and is a parameter related to a cell and a port or a port where the target reference signal is located.
  • the carrier frequency related parameters may not be mentioned in the inequality.
  • the parameter may also be introduced into the inequality side corresponding to the candidate reference signal, and the parameter is related to the candidate reference signal, for example, with transmit power, subframe resource, frequency priority, cell priority or CS I -RS ( Channe l S ta te I nforma ti on-Reference S i gna l , channel state information - reference information) One or more factors related to resource priority. Variations of various formulas based on the present invention are also within the scope of the present invention and will not be described herein.
  • the target reference signal set may be a set of CSI-RS reference signals specified in a Comp (Coordinated Multi-point) resource management set; may be a Comp resource management set; may be a Comp resource management And a set of specified CSI-RS reference signals in the set of Comp and Comp; or a set of at least one CSI-RS reference signal configured by the base station eNB.
  • a Comp Coordinatd Multi-point
  • the information included in the measurement result described in step 102 may be an identifier of an antenna port whose signal quality is lower than a target reference signal of the candidate reference signal and an identifier of an antenna port of the candidate reference signal, which may be The identifier of the antenna port whose signal quality is lower than the target reference signal of the candidate reference signal may also be the identifier of the antenna port of the candidate reference signal.
  • the network side configures the antenna port for the mobile terminal according to the measurement result, and the configuration may be specifically: deleting an antenna port whose signal quality is lower than the target reference signal of the candidate reference signal from the communication link, which may be an alternative reference.
  • the antenna port of the signal is added to the communication link, and may also be an antenna port that replaces the antenna port whose signal quality is lower than the target reference signal of the candidate reference signal with an alternate reference signal, or other configuration manner.
  • Embodiments of the present invention provide a method for measuring signal quality, first, determining whether a signal quality of an candidate reference signal is higher than a signal threshold configured on a network side, when a signal quality of the candidate reference signal is higher than the signal quality When the signal threshold configured on the network side meets the measurement report trigger condition, the measurement result is reported to the network side.
  • the threshold value of the signal quality and the trigger condition of the measurement report are set, the validity of the measurement information reported by the mobile terminal is improved, the resource overhead of the mobile terminal is reduced, and the resources of the air interface are saved.
  • One embodiment of the present invention provides a method of measuring signal quality, as shown in FIG. 2, including the following steps:
  • the mobile terminal After receiving the measurement configuration command sent by the network side, the mobile terminal starts measuring the antenna port. Signal quality, in order to report the measurement results to the network side.
  • a measurement configuration command trigger condition may also be built in the mobile terminal. After the trigger condition is met, the measurement of the signal quality of the antenna port may be started.
  • the trigger condition may be a periodic measurement of the mobile terminal or other trigger conditions. This embodiment belongs to the case where the network side sends a measurement configuration command.
  • the signal quality of the candidate reference signal is equal to or lower than a signal quality of the first reference signal during a time period of the first timer, turning off the first timer.
  • the comparison between the signal quality of the first reference signal and the signal quality of the candidate reference signal in steps 203 to 206 can be understood as determining whether the entry condition or the leaving condition in the measurement report trigger condition is satisfied. Determining, in the step 203, whether a first reference signal having a signal quality lower than a signal quality of the candidate reference signal occurs in the target reference signal set, that is, determining whether a signal quality meets the measurement in the target reference signal set A first reference signal for entering or leaving the condition in the trigger condition is reported.
  • the signal quality of the candidate reference signal in step 205 is higher than the signal quality of the first reference signal at each sampling time in the time period of the first timer, that is, it can be understood as The signal quality of the reference signal is selected as a comparison object, and the signal quality of the first reference signal satisfies an entry condition or an exit condition in the measurement report trigger condition for each sample time in the time period of the first timer.
  • step 206 can be understood as taking the signal quality of the candidate reference signal as a comparison object, and the signal quality of the first reference signal appears in the time period of the first timer, and the sampling time does not satisfy the measurement report trigger condition. Turn off the first meter when the condition or the condition is left Time device.
  • the second timer After the first timer is turned on, before the measurement result corresponding to the first reference signal has not been reported to the network side, if a second reference signal that satisfies the measurement report trigger condition occurs, the second timer is turned on.
  • the embodiment further provides a method for measuring signal quality, as shown in FIG. 3, including the following steps:
  • step 307 is performed.
  • step 308 is performed.
  • step 31 0 When the signal quality of the candidate reference signal is within the time period of the second timer When each of the sample moments is higher than the signal quality of the second reference signal, step 31 0 is performed. When the signal quality of the candidate reference signal is equal to or lower than the signal quality of the second reference signal during the time period of the second timer, step 31 1 is performed.
  • the embodiment further provides a method for measuring signal quality, as shown in FIG. 4, including the following steps:
  • any sampling time in the time period of the third timer is The network side reports the measurement result.
  • step 404 is set to set a common signal A, B, C in the target reference signal set; the candidate reference signal is D; the time period of the third timer is T, and in T, a total of 3 times.
  • the signal quality of A, B, C, D will change as the mobile terminal is in motion. Even so, the execution base of step 404 must be established above steps 401 through 403.
  • the signal quality of D is higher than A.
  • the signal quality of D is higher than B.
  • the signal quality of D is higher than B.
  • any sampling time in T is higher than the signal quality of at least one reference signal in the target reference signal set, and the measurement result is reported to the network side. If at any of the three sample times, the signal quality of D is not higher than the quality of any of A, B, and C, the third timer is turned off.
  • the determining condition of step 404 may be: if the signal quality of the candidate reference signal is higher than the target reference signal at any sampling time within the time period of the third timer The signal quality of the worst quality reference signal in the set is reported to the network side.
  • the common reference signal set A, B, C; the alternative reference signal is D; the third timer has a time period of T, and within T, a total of 3 times.
  • the signal quality of A, B, C, and D will change accordingly.
  • the signal quality of A is the worst, and the second sampling time is B.
  • the signal quality is the worst, and the signal quality of C is the worst at the third sample time.
  • the signal quality of D is higher than A at the first sampling time
  • the signal quality of D at the second sampling time is higher than B, and the signal quality of D is higher than C for the third sampling time
  • the network side reports the measurement result. If the signal quality of D is not higher than the worst signal of one of the three times, the third timer is turned off.
  • the target reference signal in this implementation may be a target reference signal of the cell, and may be a target reference signal of the small cell, or may be a target reference signal of the cell and a target reference signal of the small cell.
  • the candidate reference signal may be an alternate reference signal of the neighboring cell, may be an alternate reference signal of the neighboring small cell, or may be an alternate reference signal of the neighboring cell and an alternate reference signal of the neighboring small cell.
  • Embodiments of the present invention provide a method for measuring signal quality, first, determining whether a signal quality of an candidate reference signal is higher than a signal threshold configured on a network side, when a signal quality of the candidate reference signal is higher than the signal quality
  • the signal threshold is configured on the network side
  • the measurement report trigger condition is always met within a predetermined period of time, the measurement result is reported to the network side.
  • the base station includes:
  • the determining unit 51 is configured to determine whether the signal quality of the candidate reference signal is higher than a signal threshold configured on the network side.
  • a reporting unit 52 configured to: when the determining unit 51 determines the letter of the candidate reference signal If the quality of the signal is higher than the signal threshold configured on the network side, if the measurement report trigger condition is met, the measurement result is reported to the network side; the trigger condition of the measurement report is: the signal quality in the target reference signal set is lower than the a target reference signal of a signal quality of the candidate reference signal; the measurement result comprising an identifier of an antenna port whose signal quality is lower than a target reference signal of the candidate reference signal and/or an antenna of the candidate reference signal The identifier of the port, so that the network side configures the antenna port for the mobile terminal according to the measurement result.
  • the signal quality is lower than the target reference signal set of the candidate reference signal, and specifically includes:
  • a signal quality of the target reference signal having the best signal quality in the target reference signal set is lower than a signal quality of the candidate reference signal and the signal quality and signal quality of the candidate reference signal are the best
  • the difference in signal quality of the reference signal is not less than the preset parameter value; or ⁇ and
  • a signal quality of the target reference signal specified in the target reference signal set is lower than a signal quality of the candidate reference signal and a signal quality of the candidate reference signal and a signal quality of the specified target reference signal
  • the difference is not less than the preset parameter value; or ⁇ and
  • a signal quality of the target reference signal having the worst signal quality in the target reference signal set is lower than a signal quality of the candidate reference signal and the target quality of the candidate reference signal is the worst signal quality
  • the difference in signal quality of the reference signal is not less than the preset parameter value; or ⁇ and
  • the signal quality of the target reference signal of any one of the signal sets of the target reference signal is lower than the signal quality of the candidate reference signal.
  • the target reference signal set includes:
  • the device further includes:
  • the receiving unit 53 is configured to receive the measurement configuration command sent by the network side before the determining unit 51 determines whether the signal quality of the candidate reference signal is higher than the signal threshold configured by the network side.
  • the determining unit 51 further includes:
  • An error elimination sub-unit 51 1 configured to cancel a first error of a signal quality of the candidate reference signal, to obtain a corrected signal quality of the candidate reference signal; the first error and a motion speed of the mobile terminal, The transmission power of the mobile terminal, the frequency priority to which the candidate reference signal belongs, and one or more of the cells to which the candidate reference signal belongs are related.
  • the determining subunit 512 is configured to determine whether the corrected signal quality of the candidate reference signal is higher than a signal threshold configured by the network side.
  • the upper unit 52 includes:
  • the signal determining sub-unit 521 is configured to determine whether a first reference signal whose signal quality is lower than a signal quality of the candidate reference signal occurs in the target reference signal set.
  • the timer opening subunit 522 is configured to enable the first timer when the signal judging subunit 521 determines that the first reference signal appears.
  • a signal quality determining sub-unit 523 configured to determine whether a signal quality of the candidate reference signal is higher than a signal quality of the first reference signal in each time period of the first time period of the first timer .
  • a reporting sub-unit 524 configured to: when the signal quality determining sub-unit 523 determines that the signal quality of the candidate reference signal is higher than each of the sampling times in the time period of the first timer When the signal quality of the first reference signal is reported, the measurement result is reported to the network side.
  • a timer closing subunit 525 configured to: when the signal quality determining subunit 523 determines that a signal quality of the candidate reference signal is equal to or lower than the first reference in a time period of the first timer When the signal quality of the signal is turned off, the first timer is turned off.
  • the signal determining subunit 521 is further configured to: after the first timer is turned on, determine whether a signal quality in the target reference signal set is lower than the candidate reference signal The second reference signal of the signal quality.
  • the timer opening subunit 522 is further configured to: when the signal judging subunit 521 determines that the second reference signal appears, turn on the second timer.
  • the signal quality determining sub-unit 523 is further configured to determine whether the signal quality of the candidate reference signal is higher than the second reference signal at each sampling time in the time period of the second timer. Signal quality.
  • the reporting sub-unit 524 is further configured to: when the signal quality determining sub-unit 523 determines that the signal quality of the candidate reference signal is high at each sampling time in the time period of the second timer And when the signal quality of the second reference signal is used, the measurement result is reported to the network side.
  • the timer closing subunit 525 is further configured to: when the signal quality determining subunit 523 determines that the signal quality of the candidate reference signal is equal to or lower than the timing of the second timer The second timer is turned off when the signal quality of the second reference signal.
  • the signal determining sub-unit 521 is further configured to determine whether a third reference signal having a signal quality lower than a signal quality of the candidate reference signal occurs in the target reference signal set.
  • the timer opening subunit 522 is further configured to: when the signal judging subunit 521 determines that the third reference signal appears, turn on the third timer.
  • the signal quality determining sub-unit 523 is further configured to determine whether the signal quality of the candidate reference signal is higher than any of the target reference signal sets in the time period of the third timer. The signal quality of at least one reference signal.
  • the reporting sub-unit 524 is further configured to: when the signal quality determining sub-unit 523 determines that the signal quality of the candidate reference signal is higher than any sampling time in the time period of the third timer And reporting the measurement result to the network side when the signal quality of the at least one reference signal in the target reference signal set; and/or
  • the reporting sub-unit 524 is further configured to: when the signal quality determining sub-unit 523 determines that the signal quality of the candidate reference signal is higher than any sampling time in the time period of the third timer Signal quality of the worst quality reference signal in the target reference signal set When the quantity is measured, the measurement result is reported to the network side.
  • the target reference signal further includes: a target reference signal of the cell or a target reference signal of the small cell;
  • the candidate reference signal also includes an alternate reference signal for the neighbor cell or an alternate reference signal for the neighboring small cell.
  • An embodiment of the present invention provides an apparatus for measuring signal quality. First, determining whether a signal quality of an candidate reference signal is higher than a signal threshold configured on a network side, when a signal quality of the candidate reference signal is higher than the When the signal threshold configured on the network side meets the measurement report trigger condition, the measurement result is reported to the network side.
  • the threshold value of the signal quality and the trigger condition of the measurement report are set, the validity of the measurement information reported by the mobile terminal is improved, the resource overhead of the mobile terminal is reduced, and the resources of the air interface are saved.
  • the base station includes:
  • the receiver 61 is configured to receive a signal threshold configured on the network side.
  • the processor 62 is configured to determine whether a signal quality of the candidate reference signal is higher than a signal threshold configured by the network side.
  • the transmitter 63 is configured to: when the signal quality of the candidate reference signal is higher than the signal threshold configured by the network side, if the measurement report trigger condition is met, report the measurement result to the network side;
  • the condition is: a target reference signal having a signal quality lower than a signal quality of the candidate reference signal exists in the target reference signal set; the measurement result includes an antenna whose signal quality is lower than a target reference signal of the candidate reference signal An identification of the port and/or an identification of an antenna port of the candidate reference signal, such that the network side configures the antenna port for the mobile terminal based on the measurement.
  • the signal quality is lower than the target reference signal set of the candidate reference signal, and specifically includes:
  • the signal quality of the target reference signal having the best signal quality in the target reference signal set is lower than the signal quality of the candidate reference signal and the signal quality of the candidate reference signal
  • the difference between the signal quality of the target reference signal and the signal quality is not less than the preset parameter value; or ⁇ and
  • a signal quality of the target reference signal specified in the target reference signal set is lower than a signal quality of the candidate reference signal and a signal quality of the candidate reference signal and a signal quality of the specified target reference signal
  • the difference is not less than the preset parameter value; or ⁇ and
  • a signal quality of the target reference signal having the worst signal quality in the target reference signal set is lower than a signal quality of the candidate reference signal and the target quality of the candidate reference signal is the worst signal quality
  • the difference in signal quality of the reference signal is not less than the preset parameter value; or ⁇ and
  • the signal quality of the target reference signal of any one of the signal sets of the target reference signal is lower than the signal quality of the candidate reference signal.
  • the target reference signal set includes:
  • the receiver 61 is further configured to: before determining whether the signal quality of the candidate reference signal is higher than a signal threshold configured by the network side, receive the measurement configuration command sent by the network side.
  • processor 62 is further configured to:
  • Determining a first error of a signal quality of the candidate reference signal obtaining a corrected signal quality of the candidate reference signal; the first error and a motion speed of the mobile terminal, a transmit power of the mobile terminal, and the preparation Selecting a frequency priority to which the reference signal belongs, and one or more of the cells to which the candidate reference signal belongs.
  • the processor 62 is further configured to:
  • the first timer is turned on.
  • the transmitter 63 is further configured to: if the signal quality of the candidate reference signal is higher than the signal quality of the first reference signal at each sampling time in the time period of the first timer, Then, the measurement result is reported to the network side.
  • the processor 62 is further configured to: if the signal quality of the candidate reference signal is equal to or lower than a signal quality of the first reference signal in a time period of the first timer, a timer.
  • the processor 62 is further configured to: after the first timer is turned on, determine whether a second reference signal having a signal quality lower than a signal quality of the candidate reference signal occurs in the target reference signal set.
  • the second timer is turned on.
  • the transmitter 63 is further configured to: if the signal quality of the candidate reference signal is higher than the signal quality of the second reference signal at each sampling time in the time period of the second timer, Then, the measurement result is reported to the network side.
  • the processor 62 is further configured to: if the signal quality of the candidate reference signal is equal to or lower than a signal quality of the second reference signal in a time period of the second timer, turn off the Two timers.
  • processor 62 is further configured to:
  • the third timer is turned on.
  • the transmitter is further configured to: if a signal quality of the candidate reference signal is higher than at least one reference signal in the target reference signal set at any sampling time within a time period of the third timer Signal quality, reporting the measurement result to the network side; and/or if the signal quality of the candidate reference signal is within the time period of the third timer
  • the arbitrary sampling time is higher than the signal quality of the worst-quality reference signal in the target reference signal set, and the measurement result is reported to the network side.
  • the target reference signal further includes: a target reference signal of the cell or a target reference signal of the small cell.
  • the candidate reference signal also includes an alternate reference signal for the neighbor cell or an alternate reference signal for the neighboring small cell.
  • the receiver 61, the processor 62, and the transmitter 63 are connected via a bus 64.
  • the candidate reference signal or the target reference signal mentioned in the embodiment of the present invention includes but is not limited to CRS (Cell-specific Reference Signal), DMRS (Demodulation Reference Signal), DRS (Discovery Reference) Signal, found reference signal), TRS (Tracking Reference Signal), CSI-RS and other reference signals are not specifically limited.
  • Embodiments of the present invention provide a system for measuring signal quality, first, determining whether a signal quality of an candidate reference signal is higher than a signal threshold configured on a network side, when a signal quality of the candidate reference signal is higher than the signal quality When the signal threshold configured on the network side meets the measurement report trigger condition, the measurement result is reported to the network side.
  • the threshold value of the signal quality and the trigger condition of the measurement report are set, the validity of the measurement information reported by the mobile terminal is improved, the resource overhead of the mobile terminal is reduced, and the resources of the air interface are saved.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

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

Abstract

La présente invention concerne le domaine des communications. Un procédé, un dispositif, et un système pour mesurer une qualité de signal sont présentés, de manière à résoudre les problèmes techniques consistant en ce que des informations de mesure signalées par un terminal mobile ne sont pas valides, un sur-débit de ressources du terminal mobile est augmenté, et des ressources d'interface air sont gaspillées. Le procédé pour mesurer une qualité de signal comprend : la détermination d'abord si la qualité de signal d'un signal de référence candidat est supérieure à un seuil de signal configuré par un côté de réseau; et, lorsque la qualité de signal du signal de référence candidat est supérieure au seuil de signal configuré par le côté de réseau, si une condition de déclenchement de rapport de mesure est satisfaite, la signalisation d'un résultat de mesure au côté de réseau. La présente invention est principalement appliquée à la signalisation d'un résultat de mesure par un terminal mobile.
PCT/CN2013/071480 2013-02-06 2013-02-06 Procédé, dispositif, et système de mesure de qualité de signal WO2014121476A1 (fr)

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CN201380004583.9A CN104106281B (zh) 2013-02-06 2013-02-06 一种测量信号质量的方法、装置和系统
PCT/CN2013/071480 WO2014121476A1 (fr) 2013-02-06 2013-02-06 Procédé, dispositif, et système de mesure de qualité de signal

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CN113056926B (zh) * 2021-02-24 2023-09-29 北京小米移动软件有限公司 一种网络接入方法、网络接入装置及存储介质

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