# US 11,122,527 B2 · Method and apparatus for performing data transmission based on multiple transmission time intervals, for transmitting control information, and for transmitting data by employing multiple ports

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,122,527 B2
- Document ID: US11122527B2
- Status: Granted
- Kind: B2
- Application number: 16/494,944
- Filed: 2018-03-26
- Published: 2020-01-09
- Granted: 2021-09-14
- Earliest claimed: 2017-03-24
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Yingyang Li; Yi Wang; Shichang Zhang
- Web page: https://patentgrep.com/patent/US11122527B2

## CPC

- H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)}
- H04W 52/52: using AGC [Automatic Gain Control] circuits or amplifiers
- H04L 1/0038: {Blind format detection (for detection of modulation format H04L27/0012)}
- H04L 1/1819: {with retransmission of additional or different redundancy}
- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)}
- H04L 5/0082: {at predetermined intervals}
- H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information}
- H04L 5/0092: {Indication of how the channel is divided}
- H04L 5/10: with dynamo-electric generation of carriers; with mechanical filters or demodulators
- H04L 27/0006: {Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio (for spectrum sharing between different networks H04W16/14)}
- H04W 72/02: Selection of wireless resources by user or terminal
- H04W 72/20: Control channels or signalling for resource management
- H04B 7/0617: {for beam forming}
- H04L 1/0039: {other detection of signalling, e.g. detection of TFCI explicit signalling (H04L1/0046, H04L27/0012 and H04L25/0262 take precedence)}
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04W 52/146: {Uplink power control}
- H04W 52/365: {Power headroom reporting}
- 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)
- H04B: TRANSMISSION

## Abstract

The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). A method for operating a terminal is provided. The method includes detecting, scheduling assignment (SA) of another terminal in a sensing window based on transmission time intervals (TTIs) with different lengths in a resource pool; detecting a receiving power of a scheduled data channel based on the SA and a receiving energy of each sub-channel of each subframe; determining resources for data transmission based on the SA, the receiving power and the receiving energy; and transmitting data on the resources.

## Claims

### Claim 1

A first terminal in a wireless communication system, the first terminal comprising:
a transceiver; and
at least one processor operably coupled to the transceiver, wherein the at least one processor is configured to:
receive control information on a physical sidelink control channel (PSCCH) for a second terminal, wherein the control information includes information on resources for a physical sidelink shared channel (PSSCH) scheduled by the PSCCH,
identify a reference signal received power (RSRP) of the PSSCH,
identify a resource set for a data transmission based on comparing the RSRP and a threshold, and
transmit data based on the resource set,
wherein the threshold is identified based on a length of a transmission time interval (TTI) of the PSSCH among a plurality of TTIs.

### Claim 2 (depends on 1)

The first terminal of claim 1, wherein the at least one processor is further configured to:
divide a long TTI (lTTI) into multiple short TTIs (sTTIs),
set an automatic gain control (AGC) at a beginning of each sTTI, and
set a gap at an end of each sTTI,
wherein a length of the AGC of each sTTI is equal to a length of the AGC of the lTTI and a length of the gap of each sTTI is equal to a length of the gap of the lTTI, or
wherein a length of the AGC of a first sTTI is equal to the length of the AGC of the lTTI, a length of the gap of a last sTTI is equal to the length of the gap of the lTTI, and the length of AGC or gap of each of other sTTIs is shorter than the length of the AGC or the gap of the lTTI, or
wherein lengths of the AGC and the gap of each of other sTTIs are shorter than lengths of the AGC and the gap of the lTTI respectively.

### Claim 3 (depends on 2)

The first terminal of claim 2, wherein the at least one processor is further configured to:
based on a number of scheduling assignments (SAs) that can be sensed by the second terminal being smaller than a total number of SAs of multiple TTIs with different lengths in a lTTI, determine to-be-sensed SA resources according to priorities of the TTIs with different lengths, and
based on the number of SAs that can be sensed by the second terminal being smaller than the total number of SAs of multiple TTIs with different lengths in the lTTI, determine a number of SA resources of lTTI to be sensed by the second terminal and a number of SA resources of sTTI to be sensed by the second terminal respectively.

### Claim 4

A method performed by a first terminal, the method comprising:
receiving control information on a physical sidelink control channel (PSCCH) for a second terminal, wherein the control information includes information on resources for a physical sidelink shared channel (PSSCH) scheduled by the PSCCH;
identifying a reference signal received power (RSRP) of the PSSCH;
identifying a resource set for a data transmission based on a comparison of the RSRP and a threshold; and
transmitting data based on the resource set,
wherein the threshold is identified based on a length of a transmission time interval (TTI) of the PSSCH among a plurality of TTIs.

### Claim 5 (depends on 4)

The method of claim 4, further comprising:
dividing a long TTI (lTTI) into multiple short TTIs (sTTIs);
setting an automatic gain control (AGC) at a beginning of each sTTI; and
setting a gap at an end of each sTTI,
wherein a length of the AGC of each sTTI is equal to a length of the AGC of the lTTI and a length of the gap of each sTTI is equal to a length of the gap of the lTTI, or
wherein a length of the AGC of a first sTTI is equal to the length of the AGC of the lTTI, a length of the gap of a last sTTI is equal to the length of the gap of the lTTI, and the length of AGC or gap of each of other sTTIs is shorter than the length of the AGC or the gap of the lTTI, or
wherein lengths of the AGC and the gap of each of other sTTIs are shorter than lengths of the AGC and the gap of the lTTI respectively.

### Claim 6 (depends on 5)

The method of claim 5, wherein determining of resources for data transmission comprises:
based on a number of scheduling assignments (SAs that can be sensed by the second terminal being smaller than a total number of SAs of multiple TTIs with different lengths in a lTTI, determining to-be-sensed SA resources according to priorities of the TTIs with different lengths; and
based on the number of SAs that can be sensed by the second terminal being smaller than the total number of SAs of multiple TTIs with different lengths in the lTTI, determining a number of SA resources of lTTI to be sensed by the second terminal and a number of SA resources of sTTI to be sensed by the second terminal respectively.

### Claim 7 (depends on 1)

The first terminal of claim 1,
wherein, based on the RSRP of the PSSCH is less than or equal to the threshold, the resource set for the data transmission includes the resources for the PSSCH,
wherein, based on the RSRP of the PSSCH is more than the threshold, the resource set for the data transmission excludes the resources for the PSSCH.

### Claim 8 (depends on 1)

The first terminal of claim 1,
wherein the data is transmitted on a subset of the resource set,
wherein the subset is identified based on a length of a TTI for the data transmission.

### Claim 9 (depends on 1)

The first terminal of claim 1,
wherein the control information is received based on lengths of the plurality of TTIs.

### Claim 10 (depends on 4)

The method of claim 4,
wherein, based on the RSRP of the PSSCH is less than or equal to the threshold, the resource set for the data transmission includes the resources for the PSSCH, and
wherein, based on the RSRP of the PSSCH is more than the threshold, the resource set for the data transmission excludes the resources for the PSSCH.

### Claim 11 (depends on 4)

The method of claim 4,
wherein the data is transmitted on a subset of the resource set, and
wherein the subset is identified based on a length of a TTI for the data transmission.

### Claim 12 (depends on 4)

The method of claim 4,
wherein the control information is received based on lengths of the plurality of TTIs.