# US 10,375,757 B2 · Method and device for terminal performing PDCCH monitoring on SCPTM

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- Number: US 10,375,757 B2
- Document ID: US10375757B2
- Status: Granted
- Kind: B2
- Application number: 15/743,648
- Filed: 2016-08-10
- Published: 2018-07-19
- Granted: 2019-08-06
- Earliest claimed: 2015-08-11
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Sangwon Kim; Youngdae Lee
- Web page: https://patentgrep.com/patent/US10375757B2

## CPC

- H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX]
- H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W 24/08: Testing, {supervising or monitoring} using real traffic
- H04W 72/12: Wireless traffic scheduling
- H04W 76/20: Manipulation of established connections
- H04W 48/12: using downlink control channel
- H04W 76/40: for selective distribution or broadcast
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Provided are a method for a terminal performing physical downlink control channel (PDCCH) monitoring for receiving a single-cell point-to-multipoint (SCPTM) service in a wireless communication system, and a device supporting same. A terminal may receive one or more SCPTM discontinuous reception (DRX) configuration for receiving a SCPTM service, and on the basis of the one or more SCPTM DRX configuration, perform PDCCH monitoring for receiving the SCPTM service.

## Claims

### Claim 1

A method for performing, by a user equipment (UE), PDCCH monitoring for receiving a Single-Cell Point-to-Multipoint (SCPTM) service in a wireless communication system, the method comprising:
receiving one or more SCPTM Discontinuous Reception (DRX) configurations for receiving a SCPTM service;
receiving a legacy DRX configuration for receiving a unicast service; and
performing Physical Downlink Control Channel (PDCCH) monitoring for receiving the SCPTM service based on the one or more SCPTM DRX configurations,
wherein the SCPTM DRX configuration is configured for each Multicast Traffic Channel (MTCH), and
wherein the legacy DRX configuration is configured to be independent from the one or more SCPTM DRX configurations.

### Claim 2 (depends on 1)

The method of claim 1, wherein the PDCCH monitoring is performed during an on duration period which is configured by at least one SCPTM DRX configuration among the one or more SCPTM DRX configurations.

### Claim 3 (depends on 2)

The method of claim 2, wherein the PDCCH monitoring is performed based on one or more G-RNTIs related to the one or more SCPTM DRX configurations.

### Claim 4 (depends on 1)

The method of claim 1, wherein the SCPTM DRX configuration is acquired through SC-MCCH scheduling information which is included in a System Information Block (SIB).

### Claim 5 (depends on 1)

The method of claim 1, wherein the SCPTM DRX configuration is optionally received based on a service in which the UE is interested.

### Claim 6 (depends on 1)

The method of claim 1, wherein the SCPTM DRX configuration is configured for each MTCH group.

### Claim 7 (depends on 1)

The method of claim 1, further comprising:
performing, by the UE, PDCCH monitoring for receiving the unicast service based on the legacy DRX configuration.

### Claim 8 (depends on 1)

The method of claim 1,
wherein the PDCCH is addressed by a G-RNTI, and
wherein the PDCCH includes a DCI related to the SCPTM service.

### Claim 9 (depends on 8)

The method of claim 8, wherein, if the DCI includes a number of subframes, the PDCCH monitoring is performed in continuous subframes related to the number of subframes.

### Claim 10 (depends on 8)

The method of claim 8, wherein, if the DCI includes subframe scheduling information, the PDCCH monitoring is performed in subframes related to the subframe scheduling information.

### Claim 11 (depends on 10)

The method of claim 10, wherein the subframe scheduling information includes bitmap information.

### Claim 12 (depends on 1)

The method of claim 1, further comprising:
receiving, by the UE, one or more SCPTM services, in which the UE is interested, based on the PDCCH monitoring.

### Claim 13

A user equipment performing PDCCH monitoring for receiving a Single-Cell Point-to-Multipoint (SCPTM) service in a wireless communication system, comprising:
a memory; a transceiver; and
a processor, operatively connecting the memory to the transceiver, that:
controls the transceiver to receive one or more SCPTM Discontinuous Reception (DRX) configurations for receiving a SCPTM service,
controls the transceiver to receive a legacy DRX configuration for receiving a unicast service, and
performs Physical Downlink Control Channel (PDCCH) monitoring for receiving the SCPTM service based on the one or more SCPTM DRX configurations,
wherein the SCPTM DRX configuration is configured for each Multicast Traffic Channel (MTCH), and
wherein the legacy DRX configuration is configured to be independent from the one or more SCPTM DRX configurations.