KR20200127883A - Method and apparatus for measuring a position in a wireless communication network - Google Patents

Abstract

Disclosed are a method and apparatus for measuring a position of a terminal in a wireless communication network. According to the present disclosure, the method comprises the steps of: from a base station, receiving positioning reference signal (PRS) configuration information including information on at least one PRS resource set including at least one PRS resource for receiving a PRS; receiving a PRS from the base station based on the PRS configuration information; and performing position measurement of the terminal based on the received PRS. According to the present disclosure, there is an effect of efficiently measuring a position in a wireless communication network.

Description

METHOD AND APPARATUS FOR MEASURING A POSITION IN A WIRELESS COMMUNICATION NETWORK}

The present disclosure relates to an improvement in the provision, management, and interpretation of a positioning reference signal in a communication system, and an apparatus associated therewith.

Efforts are being made to develop an improved 5G communication system or a pre-5G communication system in order to meet the increasing demand for wireless data traffic after the commercialization of 4G communication systems. For this reason, the 5G communication system or the pre-5G communication system is called a communication system after a 4G network (Beyond 4G Network) or a system after an LTE system (Post LTE). In order to achieve a high data rate, the 5G communication system is being considered for implementation in the ultra-high frequency (mmWave) band (eg, the 60 gigabyte (60 GHz) band). In order to mitigate the path loss of radio waves in the ultra-high frequency band and increase the transmission distance of radio waves, in 5G communication systems, beamforming, massive array multiple input/output (MIMO), and full dimensional multiple input/output (FD-MIMO) ), array antenna, analog beam-forming, and large scale antenna technologies are being discussed. In addition, in order to improve the network of the system, in 5G communication system, advanced small cell, advanced small cell, cloud radio access network (cloud RAN), ultra-dense network , Device to Device communication (D2D), wireless backhaul, moving network, cooperative communication, CoMP (Coordinated Multi-Points), and interference cancellation And other technologies are being developed.

In addition, in 5G systems, advanced coding modulation (ACM) methods such as FQAM (Hybrid FSK and QAM Modulation) and SWSC (Sliding Window Superposition Coding), advanced access technologies such as FBMC (Filter Bank Multi Carrier), NOMA (non orthogonal multiple access), and sparse code multiple access (SCMA) have been developed.

Meanwhile, the Internet is evolving from a human-centered network in which humans create and consume information, to an IoT (Internet of Things, Internet of Things) network that exchanges and processes information between distributed components such as objects. IoE (Internet of Everything) technology, which combines IoT technology with big data processing technology through connection with cloud servers, is also emerging. In order to implement IoT, technological elements such as sensing technology, wired/wireless communication and network infrastructure, service interface technology, and security technology are required, and recently, a sensor network for connection between objects, machine to machine , M2M), and MTC (Machine Type Communication) technologies are being studied. In the IoT environment, intelligent IT (Internet Technology) services that create new values in human life by collecting and analyzing data generated from connected objects can be provided. IoT is the field of smart home, smart building, smart city, smart car or connected car, smart grid, healthcare, smart home appliance, advanced medical service, etc. through the convergence and combination of existing IT (information technology) technology and various industries. Can be applied to.

Accordingly, various attempts have been made to apply a 5G communication system to an IoT network. For example, technologies such as sensor network, machine to machine (M2M), and MTC (Machine Type Communication) are implemented by techniques such as beamforming, MIMO, and array antenna. There is. The application of a cloud radio access network (cloud RAN) as the big data processing technology described above is an example of the convergence of 5G technology and IoT technology.

As described above and with the development of a mobile communication system, various services can be provided, and thus a method of easily providing such services is required.

The above information is presented only as background information to aid in understanding the present disclosure. There has been no determination as to which of the above is applicable as prior art with respect to the disclosure, and no claims have been made.

In accordance with the present disclosure, a method and apparatus for measuring a location in a wireless communication network is provided.

In accordance with the present disclosure, it is intended to improve the provision, management, and interpretation of a positioning reference signal in a communication system.

According to an embodiment of the present disclosure, in a method for a terminal to measure a location of a terminal in a wireless communication network, the method includes at least one PRS resource for receiving a Positioning Reference Signal (PRS) from a base station. Receiving PRS configuration information including information on at least one PRS resource set to be included; Receiving the PRS from the base station based on the PRS configuration information; And performing position measurement of the terminal based on the received PRS.

According to an embodiment of the present disclosure, The PRS configuration information may include PRS muting pattern information indicating a muting pattern indicating a PRS resource that is not transmitted within at least one PRS resource set.

According to an embodiment of the present disclosure, the PRS muting pattern information includes first pattern information indicating that at least one PRS resource included in the one PRS resource set is muted, and each of the plurality of PRS resource sets It may include second pattern information indicating that at least one PRS resource included in is muted.

According to an embodiment of the present disclosure, the PRS muting pattern information may be received through an upper layer signal.

According to an embodiment of the present disclosure, based on the PRS muting pattern information, further comprising the step of identifying at least one PRS resource in which the PRS is not received, and receiving the PRS from the base station; It may include the step of receiving the PRS based on the identification result.

According to an embodiment of the present disclosure, the PRS muting pattern information may include muting period information determined based on a resource pattern.

According to an embodiment of the present disclosure, the PRS muting pattern information may include muting period information determined based on a numerology of a PRS resource through which the PRS is transmitted.

According to an embodiment of the present disclosure, the step of identifying at least one PRS resource in which the PRS is not received based on the PRS muting pattern information; includes the same frequency resource for transmitting the PRS in a plurality of cells. And identifying at least one PRS resource to which the PRS is not received based on the PRS muting pattern information determined to mute the frequency resource of at least one cell among the plurality of cells when allocated for the plurality of cells. .

According to an embodiment of the present disclosure, in a method for a base station to measure a location of a terminal in a wireless communication network, the method includes at least one PRS resource including at least one PRS resource for transmitting a Positioning Reference Signal (PRS). Transmitting PRS configuration information including information on the set to the terminal; And transmitting the PRS to the terminal based on the PRS configuration information.

According to an embodiment of the present disclosure, the PRS configuration information may include PRS muting pattern information indicating a muting pattern indicating a PRS resource that is not transmitted within at least one PRS resource set.

According to an embodiment of the present disclosure, the PRS muting pattern information includes first pattern information indicating that at least one PRS resource included in the one PRS resource set is muted, and each of the plurality of PRS resource sets It may include second pattern information indicating that at least one PRS resource included in is muted.

According to an embodiment of the present disclosure, a terminal for measuring a location of a terminal in a wireless communication network, comprising: a transceiver; A memory for storing at least one or more instructions; And at least one or more processors that control the terminal by executing the at least one or more instructions.

According to an embodiment of the present disclosure, the at least one processor includes information on at least one PRS resource set including at least one PRS resource for receiving a Positioning Reference Signal (PRS) from a base station. It is possible to control the transceiver to receive configuration information, control the transceiver to receive the PRS from the base station based on the PRS configuration information, and perform position measurement of the terminal based on the received PRS. .

According to an embodiment of the present disclosure, the PRS configuration information may include PRS muting pattern information indicating a muting pattern indicating a PRS resource that is not transmitted within at least one PRS resource set.

According to an embodiment of the present disclosure, the PRS muting pattern information includes first pattern information indicating that at least one PRS resource included in the one PRS resource set is muted, and each of the plurality of PRS resource sets It may include second pattern information indicating that at least one PRS resource included in is muted.

According to an embodiment of the present disclosure, the PRS muting pattern information may be received through an upper layer signal.

According to a first aspect of the present disclosure, in a method of configuring a positioning reference signal, that is, a PRS in a communication system, the method comprises: a plurality of comb patterns in the form of a plurality of comb patterns. Providing PRS configurations; Selecting one of the plurality of PRS configurations and applying it to transmission of the PRS; Determining a muting configuration periodicity, that is, T_REP, based on the selected one of the plurality of PRS configurations; And selectively muting the PRS according to T_REP. A method of configuring a PRS in a communication system is provided.

In one embodiment, each of the plurality of PRS configurations in the form of a plurality of comb patterns is defined in terms of one or more resource elements including PRS transmission.

In one embodiment, the plurality of PRS configurations includes one or more of Comb-1, Comb-3, Comb-4, Comb-6, and Comb-12 patterns.

In one embodiment, T_REP is determined based on a set of all possible values.

In one embodiment, the location server configures the value of T_REP.

In one embodiment, T_REP is further defined based on numerology.

According to a second aspect of the present disclosure, in a method of configuring a positioning reference signal, that is, a PRS in a communication system, the method comprising muting a PRS for at least a portion of a frequency band, in a communication system A method of configuring is provided.

In one embodiment, muting is configured for a portion of the frequency band or the entire frequency band.

According to a third aspect of the present disclosure, there is provided a method of configuring a positioning reference signal, i.e., a PRS, in a communication system, the method comprising the method of the first aspect combined with the method of the second aspect. A method of configuring a PRS in a system is provided.

According to a fourth aspect of the present disclosure, a non-transitory data carrier carrying a processor control code for implementing the method of any preceding aspect is provided.

According to a fifth aspect of the present disclosure, there is provided an apparatus arranged to perform the method of any one of the first, second, and third aspects.

According to the present disclosure, there is an effect of efficiently measuring a location in a wireless communication network.

According to the present disclosure, there is an effect of improving the provision, management, and interpretation of a positioning reference signal in a communication system.

However, the effects that can be achieved by the method and apparatus for controlling communication between devices belonging to a communication group according to an embodiment are not limited to those mentioned above, and other effects not mentioned are seen from the following description. It will be clearly understood by those of ordinary skill in the art to which the disclosure belongs.

1A-1C show Comb-3, Comb-6, and Comb-12 patterns, respectively, according to an embodiment of the present disclosure.
2 illustrates frequency muting, according to an embodiment of the present disclosure.
3 is a flowchart illustrating a method for a terminal to measure a location of a terminal in a wireless communication network according to an embodiment of the present disclosure.
4 is a flowchart illustrating a method for a base station to measure a location of a terminal in a wireless communication network according to an embodiment of the present disclosure.
5 schematically illustrates a structure of a base station according to an embodiment of the present disclosure.
6 schematically shows the structure of a terminal according to an embodiment of the present disclosure.

1 to 6 discussed below, and the various embodiments used to explain the principles of the present disclosure herein are exemplary only and should not be construed as limiting the scope of the present disclosure. Those skilled in the art will understand that the principles of the present invention can be implemented in a properly arranged system or device.

The present disclosure relates to an improvement in the provision, management, and interpretation of a positioning reference signal in a communication system, and an apparatus associated therewith. The present disclosure applies in particular to New Radio (NR) or Fifth Generation (5G) systems, but may have other applications.

The demand for mobile services is exploding and one of the fastest growing sectors is Location Based Services, driven by two main needs: emergency services and commercial applications. : LBS). In response to this need, second and third generation networks (WCDMA, GSM, CDMA) support for several positioning techniques, varying in accuracy and Time to First Fix (TTFF) performance. Has been added. 3GPP Release 9 for LTE (3GPP Release 9 for LTE) is the positioning technologies, Extended Cell ID (ECID), Assisted Global Navigation Satellite System (A-GNSS), Observed Time Different Of Arrival (OTDOA), LTE Positioning Protocol (LPP), and support for new positioning protocols are defined. A reference signal, that is, a positioning reference signal (PRS) has been defined in LTE. In addition, in Rel-11, an Uplink Observed Time Different of Arrival: UOTDA was adopted using SRS measurement. 3GPP Rel-15 provides support for some Radio Access Technology (RAT)-independent positioning techniques, such as Real Time Kinematic (RTK) GNSS, to improve the accuracy of LTE positioning. Are defined.

In LTE, base stations (eNBs) may be configured for time-based blanking, called “PRS muting”. By this process, when the strong PRS signal is muted, weak PRS signals from neighboring cells are more easily detected by the UE.

In the LTE system, the PRS muting configuration is defined as a periodic sequence whose periodicity is T_REP, where T_REP counts the number of positioning occasions, which are 2, 4, 8, and May be 16. The muting info is represented by a binary string of 2, 3, 8 and 16 bits in length.

Whether mentioned herein or not, it is an object of embodiments of the present disclosure to solve the problems of the prior art and to provide improved positioning reference capability in a communication system.

According to the present disclosure, an apparatus and a method are provided as described in the appended claims. Other features of the present disclosure will become apparent from the dependent claims and the following description.

According to a first aspect of the present disclosure, in a method of configuring a positioning reference signal, that is, a PRS in a communication system, the method comprises: a plurality of comb patterns in the form of a plurality of comb patterns. Providing PRS configurations; Selecting one of the plurality of PRS configurations and applying it to transmission of the PRS; Determining a muting configuration periodicity, that is, T_REP, based on the selected one of the plurality of PRS configurations; And selectively muting the PRS according to T_REP. A method of configuring a PRS in a communication system is provided.

In one embodiment, each of the plurality of PRS configurations in the form of a plurality of comb patterns is defined in terms of one or more resource elements including PRS transmission.

In one embodiment, the plurality of PRS configurations includes one or more of Comb-1, Comb-3, Comb-4, Comb-6, and Comb-12 patterns.

In one embodiment, T_REP is determined according to the following table:

In one embodiment, T_REP is determined based on a set of all possible values.

In one embodiment, the location server configures the value of T_REP.

In one embodiment, T_REP is further defined based on numerology.

According to a second aspect of the present disclosure, in a method of configuring a positioning reference signal, that is, a PRS in a communication system, the method comprising muting a PRS for at least a portion of a frequency band, in a communication system A method of configuring is provided.

In one embodiment, muting is configured for a portion of the frequency band or the entire frequency band.

According to a third aspect of the present disclosure, there is provided a method of configuring a positioning reference signal, i.e., a PRS, in a communication system, the method comprising the method of the first aspect combined with the method of the second aspect. A method of configuring a PRS in a system is provided.

According to a fourth aspect of the present disclosure, a non-transitory data carrier carrying a processor control code for implementing the method of any preceding aspect is provided.

According to a fifth aspect of the present disclosure, there is provided an apparatus arranged to perform the method of any one of the first, second, and third aspects.

While several preferred embodiments of the present disclosure have been described, those skilled in the art to which the present disclosure pertains will appreciate that various changes and modifications may be made without departing from the scope of the present disclosure, as defined in the appended claims. I will understand.

Reference will be made to the accompanying drawings, by way of example only, to better understand the present disclosure and to show how embodiments of the present disclosure may be practiced.

1A-1C show Comb-3, Comb-6, and Comb-12 patterns, respectively, according to an embodiment of the present disclosure.

In NR, the PRS muting configuration should be different from LTE for at least the following reasons. In LTE, only one comb pattern, i.e. Comb-6, is supported, but in NR, a plurality of PRS patterns with different comb patterns, e.g. Comb-1, 2, 3, 4, 6, 12 Supported. In addition, a plurality of neurology is supported in NR. Furthermore, the system bandwidth can be much larger, up to 400 MHz in FR2. Because of all these considerations, a different PRS muting configuration is required.

In LTE systems, the muting configuration is relative across a plurality of positioning occasions. However, in NR where beamforming can be used, muting can be configured even in one positioning event. For example, when a serving base station (gNB) has K beams and performs beam sweeping in one positioning event to transmit a PRS, k of the K beams are transmitted to other neighboring gNBs. It can be muted to reduce interference to

The muting configuration of a plurality of gNBs may be coordinated by a location server of the system. One location event may be composed of a plurality of PRS resource sets, and beam sweeping may be performed within each resource set or across a plurality of resource sets. The muting may occur within one resource set or across a plurality of resource sets. In this regard, it is necessary to define a measurement behavior of the UE in the system.

UE detects a DL PRS resource(s)/resource set different from one downlink (DL) PRS resource/resource set indicated by the network and uses such resource(s)/resource set as a reference If selected, the UE must report the resource ID(s) and/or the resource set ID.

The indicated resource(s)/resource set is typically from a serving cell. However, when muting occurs, the serving cell may be muted and the UE must select a resource(s)/resource set from a neighboring cell. In such case, the UE's decision criterion should be defined for such operation. Several alternatives can be considered:

1: The UE may select a DL PRS resource having the strongest first detected path;

2: The UE can select the DL PRS resource with the strongest detection path;

3: The UE can select the DL PRS resource with the strongest average paths;

4: Combination of 1 to 3 above.

The criterion used should also be reported to the network to facilitate the positioning.

Another problem is how the resource ID(s) and/or resource set IDs are reported. Three cases can be considered.

In the first case, both the resource ID and the resource set ID are defined globally. In the second case, the resource ID is defined locally but the resource set ID is defined globally. In the third case, both the resource ID and the resource set ID are defined locally.

For the first case, the UE can report only a resource ID or a resource set ID, without any ambiguity.

For the second case, it is not enough to report only the resource ID, since both the resource ID and the resource set ID must be reported since the same ID can be used in different resource sets.

For the third case, even if both the resource ID and the resource set ID are reported, ambiguity may still exist, in which case the cell ID must also be reported to resolve such ambiguity.

Alternatively, other IDs, where the cell ID is implicitly included, such as the PRS sequence ID may be reported instead. It is also possible to report only the PRS sequence ID without the resource ID/resource set ID, because such IDs can be included in the "cinit" (seed used to generate the PRS) when generating PRS sequences. to be. Reporting the sequence ID may implicitly report the resource ID/resource set ID.

In the conventional LTE system, comb pattern based muting can be used, but only Comb-6 is supported. However, according to an embodiment of the present disclosure, other comb patterns such as Comb-3 and Comb-12 may be used. Comb-3, Comb-6 and Comb-12 patterns are shown in FIGS. 1A-1C, respectively. Each of these represents PRS transmissions in a time domain slot, including 14 symbols and 12 subcarriers, as indicated by the axes of FIG. 1A. The PRS transmission is indicated by a shaded resource element (cell).

With a larger comb pattern such as Comb-12 (see FIG. 1C), more cells can simultaneously transmit orthogonal PRS (PRS). There is an offset between different cells and there are fewer collisions between PRSs from neighboring cells. In this regard, for the same number of cells transmitting the PRS, a smaller number of Positioning Occasions is required. For example, for 24 cells with a physical cell ID (Physical Cell ID), that is, PCI 0 to 23, when Comb-12 is used, 2 to orthogonalize cells 0 to 11 and cells 12 to 23 Two positioning events are required. For this reason, muting of specific PRS transmissions is required so that cell orthogonality can be achieved.

When Comb-6 is used, four positioning events are required to orthogonalize cells 0-5, cells 6-11, cells 12-17, and cells 18-23.

When Comb-3 is used, cells 0 to 2, cells 3 to 5, cells 6 to 8, cells 9 to 11, cells 12 to 14, cells 15 to 17, cells 18 to 20, and cells 21 to 23 are orthogonal Eight positioning events are required to reconcile.

For Comb-1, 24 events are needed to orthogonalize all PRSs from 24 cells. Thus, the muting configuration periodicity, i.e., T_REP, is defined to depend on the comb pattern. In other words, the embodiments of the present disclosure define a muting scheme, including periodicity, based on which PRS comb pattern is used.

Therefore, two different ways of defining T_REP as a comb pattern can be defined as follows.

In the first case, for each adopted comb pattern, a separate group of T_REP values is defined. For example, for Comb-6, the bit string length as well as T_REP belong to the set {2, 4, 8, 16}. For Comb-12, T-REP belongs to set {2, 4, 8}. For Comb-3, the T-REP belongs to the set {4, 8, 16, 32}. For Comb-1, the T-REP belongs to the set {16, 32, 64, 128}. For Comb-4, the T-REP belongs to the set {6, 12, 24, 48}. It should be noted that the values in the set are only examples and they may be predefined or otherwise configured in a dynamic or semi-permanent manner. The table below shows the actual values of T-REP based on different comb patterns, where k1 to k5 are basic/minimum T_REP values, and these are the upper layer as indicated by codes in the first column of the table below. By high layer signaling (eg, RRC, LPP), it may be predefined or configured in a dynamic or semi-permanent manner.

In the second case, it is possible to define a super set containing all T_REP values. For example, the super set could be {2,4,8,16,32,64,128,6,12,24,48}, and it is up to the location server to configure these values as needed.

In the conventional LTE system, a single neurology is supported, but in NR, a plurality of neurology is supported. For different neurology, the slot duration is different, and the duration of one positioning event may be the same or different.

If the interval of one positioning event is the same for different neurology and the muting pattern is used over different muting events, T-REP may not depend on neurology, i.e., the value set of T_REP Is the same for all neurology.

However, if the interval of one positioning event is different for different neurology, different sets of values of T_REP must be defined for each neurology.

One example might be:

It should be noted that the above values are examples only and are not intended to be limiting.

In conventional LTE systems, muting is only possible in the time domain. However, in NR, the system bandwidth can be up to 400 MHz. When time domain muting occurs, the entire bandwidth needs to be muted, which can be considered a waste of resources. In such a case, embodiments of the present disclosure introduce frequency domain muting as well as time domain muting.

This is shown in Figure 2. 2 illustrates frequency muting, according to an embodiment of the present disclosure. This shows that for the Comb-6 pattern, PCI 0 and PCI 6 will overlap and thus they can be orthogonalized by frequency muting. In other words, PCI 0 is muted in the frequency domain, while PCI 6 is active and vice versa.

The following parameters can be defined for frequency domain muting: fundamental frequency part W_b: full frequency band W_e; A string representing the muted and activated frequency parts.

In the example shown in Fig. 2, for PCI 0 and 1, the string is 1010 (where '1' represents the active frequency portion and '0' represents the muted frequency portion), and for PCI 6 and 7 , The string is 0101. It should be noted that frequency muting can be used alone, or when combined with time domain muting, can orthogonalize PRS transmissions from a greater number of cells.

3 is a flowchart illustrating a method for a terminal to measure a location of a terminal in a wireless communication network according to an embodiment of the present disclosure.

Since detailed information has been described above, redundant descriptions will be omitted.

In step S310, the terminal sets a PRS including information on at least one PRS resource set (PRS resource set) including at least one PRS resource for receiving a PRS (Positioning Reference Signal) from the base station Information (PRS configuration information) can be received.

The PRS configuration information may include PRS muting pattern information indicating a muting pattern indicating a PRS resource that is not transmitted within at least one PRS resource set.

According to an embodiment of the present disclosure, the PRS muting pattern information may include at least one of first pattern information and second pattern information. The first pattern information may indicate that at least one PRS resource included in one PRS resource set is muted. The second pattern information may indicate that at least one PRS resource included in each of the plurality of PRS resource sets is muted.

According to an embodiment of the present disclosure, the terminal may identify at least one PRS resource to which no PRS is received, based on the PRS muting pattern information. In this case, the terminal may receive the PRS based on the identification result.

According to an embodiment of the present disclosure, the PRS muting pattern information may include muting period information determined based on a resource pattern. The terminal may identify at least one PRS resource for which a PRS is not received in consideration of the muting period information determined based on the resource pattern. For example, the resource pattern may correspond to the comb pattern described above.

According to an embodiment of the present disclosure, the PRS muting pattern information may include muting period information determined based on a numerology of a PRS resource through which a PRS is transmitted. The terminal may identify at least one PRS resource in which PRS is not received in consideration of a muting period determined based on the numerology of the PRS resource through which the PRS is transmitted.

According to an embodiment of the present disclosure, when the same frequency resource for transmitting a PRS is allocated to a plurality of cells, the UE is based on PRS muting pattern information determined to mute the frequency resource of at least one cell among the plurality of cells. Thus, it is possible to identify at least one PRS resource for which no PRS is received.

According to an embodiment of the present disclosure, PRS muting pattern information may be received through an upper layer signal.

In step S320, the terminal may receive a PRS from the base station based on the PRS configuration information.

In step S330, the terminal may perform a location measurement of the terminal based on the received PRS.

4 is a flowchart illustrating a method for a base station to measure a location of a terminal in a wireless communication network according to an embodiment of the present disclosure.

Since detailed information has been described above, redundant descriptions will be omitted.

In step S410, the base station may transmit PRS configuration information including information on at least one PRS resource set including at least one PRS resource through which a Positioning Reference Signal (PRS) is transmitted to the terminal.

As described above, the PRS configuration information may include PRS muting pattern information indicating a muting pattern indicating a PRS resource that is not transmitted within at least one PRS resource set.

As mentioned above, The PRS muting pattern information includes first pattern information indicating that at least one PRS resource included in one PRS resource set is muted, and at least one PRS resource included in each of the plurality of PRS resource sets is muted. ) May include second pattern information.

In step S420, the base station may transmit the PRS to the terminal based on the PRS configuration information.

5 schematically illustrates a structure of a base station according to an embodiment of the present disclosure.

Referring to FIG. 5, the base station 500 may include a processor 510, a transceiver 520, and a memory 530. However, not all illustrated components are essential. For example, the base station 500 may include more or fewer components than that shown in FIG. 5. In addition, the processor 510, the transceiver 520, and the memory 530 may be implemented in the form of a single chip according to another embodiment.

The above-described components will be described in detail.

The processor 510 may include one or more processors or other processing units that control the proposed function, process and/or method. The operation of the base station 500 may be implemented by the processor 510.

The transceiver 520 may include an RF transmitter for up-converting and amplifying a frequency of a transmitted signal, and an RF receiver for amplifying a received signal with low noise and down-converting a frequency. However, according to another embodiment, the transceiver 520 may be implemented by more or less components than those shown in the components.

In addition, the transmission/reception unit 520 may receive a signal through a wireless channel, output it to the processor 510, and transmit a signal output from the processor 510 through a wireless channel. The transceiver 520 may be connected to the processor 510 to transmit and/or receive a signal. Signals can include control information and data. In addition, the transceiver 520 may receive a signal through a wireless channel and output it to the processor 510. The transceiver 520 may transmit a signal output from the processor 510 through a wireless channel.

The memory 530 may store control information or data included in a signal acquired by the base station 500. The memory 530 may be connected to the processor 510 to store at least one instruction, protocol, or parameter for a proposed function, process and/or method. . The memory 530 may be composed of a storage medium such as a ROM (read-only memory), a random access memory (RAM), a hard disk, a CD-ROM, and a DVD, or a combination of storage media.

6 schematically shows the structure of a terminal according to an embodiment of the present disclosure.

Referring to FIG. 6, the terminal 600 may include a processor 610, a transceiver 620, and a memory 630. However, not all illustrated components are essential. For example, the terminal 600 may include more or fewer components than that shown in FIG. 6. In addition, the processor 610, the transceiver 620, and the memory 630 may be implemented in the form of a single chip according to another embodiment.

The above-described components will be described in detail.

Processor 610 may include one or more processors or other processing units that control the proposed function, process and/or method. The operation of the base station 600 may be implemented by the processor 610.

The transceiver 620 may include an RF transmitter that up-converts and amplifies a frequency of a transmitted signal, and an RF receiver that amplifies a received signal with low noise and down-converts a frequency. However, according to another embodiment, the transceiver 620 may be implemented by more or less components than those shown in the components.

The transceiver 620 may be connected to the processor 610 to transmit and/or receive a signal. Signals can include control information and data. In addition, the transceiver 620 may receive a signal through a wireless channel and output it to the processor 610. The transceiver 620 may transmit a signal output from the processor 610 through a wireless channel.

The memory 630 may store control information or data included in a signal acquired by the terminal 600. The memory 630 may be connected to the processor 610 to store at least one instruction, protocol, or parameter for a proposed function, process, and/or method. . The memory 630 may be formed of a storage medium such as a ROM (read-only memory), a random access memory (RAM), a hard disk, a CD-ROM, and a DVD, or a combination of storage media.

According to an embodiment of the present disclosure, the processor is configured to receive PRS configuration information including information on at least one PRS resource set including at least one PRS resource for receiving a Positioning Reference Signal (PRS) from a base station. The transmission/reception unit may be controlled, the transmission/reception unit may be controlled to receive a PRS from the base station based on PRS configuration information, and the location of the terminal may be measured based on the received PRS.

At least some of the exemplary embodiments described herein may, in part or in whole, be built using dedicated special purpose hardware.

Terms such as'component','module' or'unit' as used herein are discrete (discrete) that perform specific tasks or provide associated functionality. ) Or a hardware device, such as a circuit in the form of integrated components, a Field Programmable Gate Array (FPGA), or an Application Specific Integrated Circuit (ASIC). It may include, but is not limited thereto.

In some embodiments, the elements described above may be configured to reside on a tangible, persistent, addressable storage medium and may be configured to run on one or more processors.

These functional elements, in some embodiments, are components, processes, such as, for example, software components, object-oriented software components, class components, and task components. , Functions, attributes, procedures, subroutines, segments of program code, drivers, firmware, microcode, It may include circuitry, data, databases, data structures, tables, arrays, and variables.

Although exemplary embodiments have been described with reference to the above components, modules, and units described herein, such functional elements may be combined into fewer elements or separated into additional elements.

Various combinations of optional features have been described herein, and it will be appreciated that the described features may be combined in any suitable combination.

In particular, features of one exemplary embodiment may be appropriately combined with features of the other embodiments, except when combinations of features of another embodiment are mutually exclusive.

Throughout this specification, the term "comprising" or "comprises" is meant to include the specified component(s), but does not exclude the presence of other components.

In connection with this application, attention should be paid to all documents and documents filed concurrently with or prior to this specification and open to public inspection with this application, the contents of all such documents and documents being herein incorporated by reference. Included by reference.

All features disclosed herein (including all appended claims, abstracts and drawings), and/or all steps of any method or process so disclosed, may include at least some of those features and/or steps. Except for mutually exclusive combinations, can be combined in any combination.

Each feature disclosed herein (including all appended claims, abstracts and drawings) serves the same, equivalent or similar purpose, unless expressly stated otherwise. It can be replaced with alternative features.

Thus, unless expressly stated otherwise, each feature disclosed is merely an example of a general series of equivalent or similar features.

The present disclosure is not limited to the details of the above-described embodiment(s).

The scope of this disclosure is to any novel of the features disclosed herein (including all attached claims, abstracts and drawings), or any novel combination thereof, or any method or process so disclosed. It extends to any new one of the steps of, or any new combination thereof.

Claims (15)

In a method for a terminal to measure a location of a terminal in a wireless communication network,
PRS configuration information including information on at least one PRS resource set including at least one PRS resource for receiving a PRS (Positioning Reference Signal) from the base station (PRS configuration information) Receiving;
Receiving the PRS from the base station based on the PRS configuration information; And
And performing location measurement of the terminal based on the received PRS. The method of claim 1,
The PRS configuration information includes PRS muting pattern information indicating a muting pattern indicating a PRS resource that is not transmitted within at least one PRS resource set. The method of claim 2,
The PRS muting pattern information includes first pattern information indicating that at least one PRS resource included in the one PRS resource set is muted, and at least one PRS resource included in each of the plurality of PRS resource sets. The method comprising the second pattern information indicating to be muted. The method of claim 3,
The PRS muting pattern information is received through an upper layer signal. The method of claim 2,
Based on the PRS muting pattern information, further comprising the step of identifying at least one PRS resource in which the PRS is not received,
Receiving the PRS from the base station; is,
And receiving the PRS based on the identification result. The method of claim 5,
The PRS muting pattern information includes muting period information determined based on a resource pattern. The method of claim 5,
The PRS muting pattern information includes muting period information determined based on a numerology of a PRS resource through which the PRS is transmitted. The method of claim 5,
Based on the PRS muting pattern information, identifying at least one PRS resource in which the PRS is not received;
When the same frequency resource for transmitting the PRS is allocated to a plurality of cells,
Identifying at least one PRS resource in which the PRS is not received based on the PRS muting pattern information determined to mute the frequency resource of at least one cell among the plurality of cells. In a method for a base station to measure the location of a terminal in a wireless communication network,
Transmitting PRS configuration information including information on at least one PRS resource set including at least one PRS resource for transmitting a Positioning Reference Signal (PRS) to a terminal; And
Including, transmitting the PRS to the terminal based on the PRS configuration information. The method of claim 9,
The PRS configuration information includes PRS muting pattern information indicating a muting pattern indicating a PRS resource that is not transmitted within at least one PRS resource set. The method of claim 10,
The PRS muting pattern information includes first pattern information indicating that at least one PRS resource included in the one PRS resource set is muted, and at least one PRS resource included in each of the plurality of PRS resource sets. The method comprising the second pattern information indicating to be muted. In a terminal for measuring the location of a terminal in a wireless communication network,
A transceiver;
A memory for storing at least one or more instructions; And
At least one processor for controlling the terminal by executing the at least one or more instructions,
The at least one or more processors,
From the base station, controlling the transceiver to receive PRS configuration information including information on at least one PRS resource set including at least one PRS resource for receiving a PRS (Positioning Reference Signal),
Based on the PRS configuration information, controlling the transceiver to receive the PRS from the base station,
A terminal that performs position measurement of the terminal based on the received PRS. The method of claim 12,
The PRS configuration information includes PRS muting pattern information indicating a muting pattern indicating a PRS resource that is not transmitted within at least one PRS resource set. The method of claim 13,
The PRS muting pattern information includes first pattern information indicating that at least one PRS resource included in the one PRS resource set is muted, and at least one PRS resource included in each of the plurality of PRS resource sets. The terminal comprising the second pattern information indicating that the muted (mute). The method of claim 14,
The PRS muting pattern information is received through a higher layer signal.

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