EP-4738916-A2 - MEASUREMENT DEVICE AND METHOD, AND CONTROL DEVICE AND METHOD FOR WIRELESS NETWORK

EP4738916A2EP 4738916 A2EP4738916 A2EP 4738916A2EP-4738916-A2

Abstract

Disclosed are a measurement device and method, and a control device and method for a wireless network. The measurement device comprises: a receiving unit, which is configured to receive measurement configuration information containing a measurement solution for a target measurement object and coming from a control end; a measurement unit, which is configured to conduct corresponding measurement on the target measurement object according to the measurement configuration information received by the receiving unit; and a transmitting unit, which is configured to transmit a measurement result to the control end, wherein in response to the situation that the measurement solution contained in the measurement configuration information is a first measurement solution or a second measurement solution, the transmitting unit is configured to transmit a measurement result processed by different communication protocol layers.

Inventors

BAI, WEI

Assignees

Toyota Jidosha Kabushiki Kaisha

Dates

Publication Date: 20260506
Application Date: 20150511

Claims (16)

A measurement device (100), comprising: processing circuitry (101, 102, 103) configured to: receive measurement configuration information including a measurement scheme for a target measurement object from a control device; measure the target measurement object based on the measurement configuration information; and transmit, to the control device, a measurement result processed by different communication protocol layers based on whether the measurement scheme is a first measurement scheme or a second measurement scheme, wherein in a case that the measurement scheme is the first measurement scheme, the processing circuitry skips high layer filtering above a physical layer on the measurement result, and in a case that the measurement scheme is the second measurement scheme, the processing circuitry applies the high layer filtering above a physical layer on the measurement result.
The measurement device according to claim 1, wherein when the measurement scheme is the first measurement scheme, the processing circuitry is further configured to receive configuration information on a physical channel for transmitting the measurement result from the control terminal, and transmit the measurement result through the physical channel configured by the control terminal.
The measurement device according to claim 2, wherein the processing circuitry is configured to transmit a measurement result of a target measurement object having the best communication quality to the control terminal when the measurement scheme is the first measurement scheme.
The measurement device according to claim 2, wherein the processing circuitry is configured to transmit measurement results of all of the plurality of target measurement objects to the control terminal sequentially when the measurement scheme is the first measurement scheme.
The measurement device according to claim 2, wherein the physical channel comprises at least one of a Physical Uplink Control Channel (PUCCH) in a LTE system and an uplink dedicated physical control channel (UL-DPCCH) in a universal mobile telecommunications system (UMTS) system.
The measurement device according to claim 1, wherein the processing circuitry is further configured to receive auxiliary measurement information from the control terminal when the measurement scheme is the first measurement scheme.
The measurement device according to claim 6, wherein the auxiliary measurement information comprises at least one of the following: a type of wireless access technology for the target measurement object, an ID of a cell corresponding to the target measurement object and time-frequency information on a synchronous channel or a searching channel of the target measurement object.
The measurement device according to claim 1, wherein when the measurement scheme is the first measurement scheme, the processing circuitry is further configured to receive, from the control terminal, a measurement gap set by the control terminal based on time-frequency information of a synchronous channel or a searching channel of the target measurement object, and readjust an antenna of a user terminal based on the measurement gap and perform the measuring, wherein the user terminal is required not to transmit and receive any other information within the measurement gap of the user terminal.
The measurement device according to claim 1, wherein the measurement configuration information is comprised in a downlink control signaling from the control terminal.
The measurement device according to claim 1, wherein the measurement configuration information containing the measurement scheme comprises a measurement scheme identifier for indicating a measurement scheme to be applied.
The measurement device according to claim 10, wherein the measurement scheme identifier comprises a measurement type for the target measurement object indicating a measurement scheme, and the processing circuitry determines to use the first measurement scheme when the measurement type for the target measurement object is of a first type, otherwise the processing circuitry determines to use the second measurement scheme.
The measurement device according to claim 1, wherein the processing circuitry is configured to measure a plurality of target measurement objects based on their respective measurement schemes, respectively.
The measurement device according to claim 1, wherein when the measurement scheme is the second measurement scheme, the processing circuitry is configured to transmit the measurement result through a physical data channel.
A measurement method for a wireless network, comprising: receiving, by processing circuitry, measurement configuration information including a measurement scheme for a target measurement object from a control device; measuring, by the processing circuitry, the target measurement object based on the measurement configuration information; and transmitting, by the processing circuitry to the control device, a measurement result processed by different communication protocol layers based on whether the measurement scheme is a first measurement scheme or a second measurement scheme, wherein in a case that the measurement scheme is the first measurement scheme, the method further comprises skipping, by the processing circuitry, high layer filtering above a physical layer on the measurement result, and in a case that the measurement scheme is the second measurement scheme, the method further comprises applying, by the processing circuitry, the high layer filtering above the physical layer on the measurement result.
A control device, comprising: processing circuitry configured to: determine, with respect to a target measurement object and a user terminal, a measurement scheme of the user terminal for the target measurement object from multiple candidate measurement schemes including a first measurement scheme and a second measurement scheme; notify the user terminal of measurement configuration information including the determined measurement scheme for the target measurement object; and receive a measurement result reported by the user terminal, wherein the processing circuitry parses the measurement result of the user terminal in different communication protocol layers based on whether the measurement scheme is a first measurement scheme or a second measurement scheme, and the user terminal is configured to in a case that the measurement scheme is the first measurement scheme, skip high layer filtering above a physical layer on the measurement result, and in a case that the measurement scheme is the second measurement scheme, apply the high layer filtering above a physical layer on the measurement result.
A control method, comprising: determining, by processing circuitry of a control device with respect to a target measurement object and a user terminal, a measurement scheme of the user terminal for the target measurement object from multiple candidate measurement schemes including a first measurement scheme and a second measurement scheme; notifying the user terminal of measurement configuration information including the determined measurement scheme for the target measurement object; receiving a measurement result reported by the user terminal; and parsing, by the processing circuitry, the measurement result of the user terminal in different communication protocol layers based on whether the measurement scheme is a first measurement scheme or a second measurement scheme, wherein the user terminal is configured to in a case that the measurement scheme is the first measurement scheme, skipping high layer filtering above a physical layer on the measurement result, and in a case that the measurement scheme is the second measurement scheme, apply high layer filtering above a physical layer on the measurement result.

Description

FIELD OF THE INVENTION The present disclosure generally relates to the field of wireless communication, and particularly to a measurement device and method and a control device and method for a wireless network. 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. SUMMARY OF THE INVENTION In the following, an overview of the present invention is given simply to provide basic understanding to some aspects of the present invention. It should be understood that this overview is not an exhaustive overview of the present invention. It is not intended to determine a critical part or an important part of the present invention, nor to limit the scope of the present invention. An object of the overview is only to give some concepts in a simplified manner, which serves as a preface of a more detailed description described later. A measurement device for a wireless network is provided according to an aspect of the present disclosure, and the measurement device includes: a receiving unit, configured to receive measurement configuration information containing a measurement scheme for a target measurement object from a control terminal; a measuring unit, configured to measure the target measurement object