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EP-4247044-B1 - MEASUREMENT DEVICE AND METHOD, AND CONTROL DEVICE AND METHOD FOR WIRELESS NETWORK

EP4247044B1EP 4247044 B1EP4247044 B1EP 4247044B1EP-4247044-B1

Inventors

  • BAI, WEI

Dates

Publication Date
20260506
Application Date
20150511

Claims (8)

  1. An electronic device (100) for a user equipment in a radio communication system, comprising circuitry (101, 102, 103), configured to acquire measurement configuration information from a control device at the network side comprising a measurement scheme for a target measurement object measure the target measurement object based on the measurement configuration information; and transmit, to the control device, a measurement result, wherein the circuitry is configured to process the measurement result by different procedures in response to whether the measurement scheme is a first measurement scheme or a second measurement scheme and skip the high layer filtering above a physical layer on the measurement result in case the measurement scheme is the first measurement scheme and compares measurement values with a reference value to determine triggering a report of measurement result to the control device or not.
  2. The electronic device according to claim 1, wherein when the measurement scheme is the first measurement scheme, a Hybrid Automatic Repeat Request, HARQ, mechanism is not used in a process of reporting the measurement result when the measurement scheme is the second measurement scheme, a Hybrid Automatic Repeat Request, HARQ, mechanism is used in the process of reporting the measurement result.
  3. The electronic device according to claim 1, wherein when the measurement scheme is the first measurement scheme, the electronic device does not perform Forward Error Correction, FEC, on the measurement result before reporting the measurement result to the control device, and when the measurement scheme is the second measurement scheme, the electronic device performs the Forward Error Correction, FEC, on the measurement result before reporting the measurement result to the control device.
  4. The electronic device according to claim 1, wherein when the measurement scheme is the second measurement scheme, the circuitry applies high layer filtering above the physical layer on the measurement and compares high layer filtered measurement values with a reference value to determine triggering a report of measurement result to the control device or not.
  5. A control device (200) at the network side device in a radio communication system, comprising circuitry (201, 202, 203), configured to provide measurement configuration information indicating a measurement scheme for a target measurement object to a terminal device; acquire, from the terminal device, a measurement result of the target measurement object, wherein the measurement result has been processed by the terminal device according to different procedures in response to whether the measurement scheme is a first measurement scheme or a second measurement scheme and wherein the high layer filtering above a physical layer has been skipped on the measurement result in case the measurement scheme is the first measurement scheme, and measurement values are compared with a reference value for triggering a report of measurement result to the control device.
  6. The control device according to claim 5, when the measurement scheme is the first measurement scheme, a Hybrid Automatic Repeat Request, HARQ, mechanism is not used in a process of reporting the measurement result when the measurement scheme is the second measurement scheme, a Hybrid Automatic Repeat Request, HARQ, mechanism is used in the process of reporting the measurement result.
  7. The control device according to claim 5, wherein when the measurement scheme is the first measurement scheme, the terminal device does not perform Forward Error Correction, FEC, on the measurement result before reporting the measurement result to the electronic device , and when the measurement scheme is the second measurement scheme, the terminal device performs the Forward Error Correction, FEC, on the measurement result before reporting the measurement result to the electronic device.
  8. The control device according to claim 5, wherein when the measurement scheme is the second measurement scheme, the circuitry of the terminal device applies high layer filtering above the physical layer on the measurement and compares high layer filtered measurement values with a reference value to determine triggering a report of measurement result to the electronic device or not.

Description

FIELD OF THE INVENTION The present disclosure generally relates to the field of wireless communication, and particularly to an electronic device for a user equipment and a control device at the network side. BACKGROUND OF THE INVENTION A mode of cellular communication is normally used in an existing wireless communication system. That is, multiple base stations are deployed by an operator to cover a region where communication is to be performed, and each of the base stations has a separate coverage range and is responsible for functions such as user scheduling, data transmission, demodulation and so on within the coverage range thereof. The 2G (GSM) communication system, the 3G (WCDMA, CDMA2000, TD-SCDMA and so on) communication system and the 4G (LTE, LTE-A) communication system have a same basic principle of cellular coverage although they are different in specific functions. In the case that a user terminal moves from a cell to another cell, it is required for the user terminal to switch between the cells to guarantee continuity of communication, since each cell has a relatively independent scheduling system and demodulation and decoding system. Channel quality is required to be measured in a process of the switch, to ensure that the switch is performed correctly. Specifically, the user terminal measures with respect to a home cell and an adjacent cell based on configuration on a network side, processes a measurement result, and then reports the measurement result to the network side. The network side determines whether to perform cell switch based on the reported measurement result, and transmits a switch instruction in the case that the cell switch is required. The user terminal performs a switch flow upon receiving the switch instruction, and is connected to a target cell. Ping-pong effect is further to be avoided while guaranteeing switch performance. The ping-pong effect is that a user terminal is switched back and forth between two cells endlessly due to an unreasonable cell switch method or parameter, thereby seriously affecting transmission performance of the user terminal and wasting network resources. A conventional method is thus to convey measurement results in a physical layer of the user terminal to a high layer such as a Radio Resource Control (RRC) layer. The high layer filters and iterates the measurement results, and transmits a relative long-term and average measurement result to the network side to determine. Figure 1 shows a measurement model for the conventional method in TS36.300. In Figure 1, A is measurement values in a physical layer, the measurement values are filtered and subjected to report criterion evaluation in layer 3 after being filtered in layer 1, and then the measurement values are reported. The measurement values are averaged to some extent upon being filtered in layer 1, and the report criterion evaluation is used for checking whether it is necessary to report the measurement values. The evaluation may be also based on multiple flows at C such as C and C' for the measurement values, for example, to compare different measurement values. In addition, the report criterion evaluation can also be used for comparing the measurement result of the user terminal with a reference value to obtain a comparison result, and performing statistics on the comparison result within a time period, and for example, the measurement result is reported only in the case that the comparison result meets a condition within the time period. The method described above can avoid the ping-pong effect. However, the method has disadvantages such as long time delay, high complexity and extra signaling overheads since processing in the high layer is required. For example, the switch flow often takes about 2 s in the 2G system, and even in the 4G system such as LTE or LTE-A in which the system is simplified greatly, the switch flow also takes at least 100 ms. Therefore, the communication requirement in a network structure which becomes even more diverse can not be met. Prior art includes: EP 2 395 785 A1, EP 2 413 625 A1, GB 2 499 080 A and TTPCOM LTD ET AL: "Correction to inconsistency between 25.302 and RRM specifications (25.123/25.133)", 3GPP DRAFT; R2-021161 R99 CR TO MEASUREMENTS MODEL, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), Mobile Competence Centre; 650, Route Des Lucioles; F-06921 Sophia-Antipolis Cedex; France, vol. Ran Wg2 no. Gyeongju, Korea, 9 May 2022. SUMMARY OF THE INVENTION The invention is defined by the appended claims. In the electronic device for a user equipment according to the present disclosure, different measurement schemes for processing in different communication protocol layers can be selected based on a property of the target measurement object and a property of the user terminal, thereby reducing processing cost as much as possible and improving transmission performance in the case of there being multiple network architectures. These and other advantages of the presen