# US 11,310,798 B2 · Measurement method and apparatus for supporting mobility in communication system

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- Number: US 11,310,798 B2
- Document ID: US11310798B2
- Status: Granted
- Kind: B2
- Application number: 16/791,616
- Filed: 2020-02-14
- Published: 2020-08-20
- Granted: 2022-04-19
- Earliest claimed: 2019-02-15
- Assignees: Electronics and Telecommunications Research Institute
- Applicants: Electronics and Telecommunications Research Institute
- Inventors: Cheul Soon Kim; Sung Hyun Moon; Jung Hoon Lee
- Web page: https://patentgrep.com/patent/US11310798B2

## CPC

- H04L 5/0023: {Time-frequency-space}
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information}
- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 72/542: using measured or perceived quality
- H04W 74/0808: using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Disclosed are a measurement method and a measurement apparatus for supporting mobility in a communication system. An operation method of a terminal may comprise receiving, from a base station, control information including first information indicating one or more physical uplink shared channel (PUSCH) interlaces configured in an unlicensed band; identifying frequency resources corresponding to the one or more PUSCH interlaces; and transmitting a PUSCH to the base station using the frequency resources of the unlicensed band. Thus, the performance of the communication system can be improved.

## Claims

### Claim 1

An operation method of a terminal in a communication system, the operation method comprising:
receiving, from a base station, first control information including first information indicating a physical uplink shared channel (PUSCH) interlace configured in an unlicensed band and second information indicating one or more resource block (RB) sets;
identifying frequency resources corresponding to the PUSCH interlace in the one or more RB sets; and
transmitting a PUSCH to the base station using the identified frequency resources in the unlicensed band,
wherein each of the one or more RB sets includes one or more RBs, the PUSCH interlace is indicated by an index, the index being the first information when a subcarrier spacing of a bandwidth part (BWP) to which the PUSCH interlace belongs is a first value, and the PUSCH interlace is indicated by a bitmap, the bitmap being the first information when the subcarrier spacing is a second value.

### Claim 2 (depends on 1)

The operation method according to claim 1, wherein the first information is located prior to the second information within the first control information, a first zero bit is prepended to the first information within the first control information, and a second zero bit is appended to the second information within the first control information.

### Claim 3 (depends on 1)

The operation method according to claim 1, further comprising receiving second control information including third information indicating an available RB set from the base station, and the identified frequency resources belong to the available RB set in the one or more RB sets indicated by the first control information.

### Claim 4 (depends on 3)

The operation method according to claim 3, wherein the second control information further includes fourth information indicating valid duration.

### Claim 5 (depends on 3)

The operation method according to claim 3, wherein, when the second control information further includes fifth information indicating a slot structure and a plurality of pieces of second control information are received from the base station, the plurality of pieces of second control information indicate that a same slot structure is expected by the terminal.

### Claim 6 (depends on 1)

The operation method according to claim 1, wherein each of bits included in the bitmap indicates one PUSCH interlace allocated for the terminal.

### Claim 7 (depends on 1)

The operation method according to claim 1, wherein the index indicates a combination of one or more PUSCH interlaces allocated for the terminal.

### Claim 8 (depends on 7)

The operation method according to claim 7, wherein the index includes information indicating a starting PUSCH interlace among the one or more PUSCH interlaces and information indicating a number of the one or more PUSCH interlaces.

### Claim 9 (depends on 1)

The operation method according to claim 1, wherein, when the first information indicates a plurality of PUSCH interlaces, the frequency resources are identified by a combination of the plurality of PUSCH interlaces in the one or more RB sets.

### Claim 10 (depends on 1)

The operation method according to claim 1, wherein, when a plurality of RB sets are indicated by the first control information, a guard band which being located between the plurality of RB sets is determined by the terminal.

### Claim 11

An operation method of a base station in a communication system, the operation method comprising:
transmitting, to a terminal, first control information including first information indicating a physical uplink shared channel (PUSCH) interlace configured in an unlicensed band and second information indicating one or more resource block (RB) sets;
identifying frequency resources corresponding to the PUSCH interlace in the one or more RB sets; and
performing a monitoring operation on the identified frequency resources in the unlicensed band to obtain a PUSCH from the terminal,
wherein each of the one or more RB sets includes one or more RBs, the first information is a bitmap when a subcarrier spacing of a bandwidth part (BWP) to which the PUSCH interlace belongs is a second value, and each of bits included in the bitmap indicates one PUSCH interlace allocated for the terminal.

### Claim 12 (depends on 11)

The operation method according to claim 11, wherein a scheme for indicating the PUSCH interlace depends on the subcarrier spacing.

### Claim 13 (depends on 12)

The operation method according to claim 12, wherein the PUSCH interlace is indicated by an index, the index being the first information when the subcarrier spacing is a first value.

### Claim 14 (depends on 11)

The operation method according to claim 11, wherein the first information is located prior to the second information within the first control information, a first zero bit is prepended to the first information within the first control information, and a second zero bit is appended to the second information within the first control information.

### Claim 15 (depends on 11)

The operation method according to claim 11, further comprising transmitting second control information including third information indicating an available RB set to the terminal, and the identified frequency resources belong to the available RB set in the one or more RB sets indicated by the first control information.

### Claim 16 (depends on 13)

The operation method according to claim 13, wherein the index indicates a combination of one or more PUSCH interlaces allocated for the terminal.

### Claim 17 (depends on 16)

The operation method according to claim 16, wherein the index includes information indicating a starting PUSCH interlace among the one or more PUSCH interlaces and information indicating a number of the one or more PUSCH interlaces.
