Method and apparatus for transmitting and receiving downlink signal in next generation wireless network

Patent metadata

Field	Value
Publication number	US-2019274153-A1
Application number	US-201716349874-A
Country	US
Kind code	A1
Filing date	Nov 16, 2017
Priority date	Nov 16, 2016
Publication date	Sep 5, 2019
Grant date	—

Abstract

Provided are a method and apparatus for transmitting and receiving a downlink signal for supporting effective multiplexing between data traffic having mutually different QoS requirements in a next generation/5G wireless access network (“New Radio” (NR)) for which discussion has begun in 3 GPP. The method may include receiving configuration information for receiving downlink pre-emption indication data from a base station; monitoring the downlink pre-emption indication data based on the configuration information; and receiving the downlink pre-emption indication data through a multicast or unicast signal, wherein the downlink pre-emption indication data indicates superposed radio resources for providing a first service and for providing a second service.

First claim

1 . A method of a user equipment (UE) for receiving a downlink (DL) signal, the method comprising:
receiving configuration information for receiving DL preemption indication information from a base station; monitoring the DL preemption indication information based on the configuration information; and receiving the DL preemption indication information through a multicast signal, wherein the DL preemption indication information includes information for indicating superposed radio resources where radio resources allocated for the UE and radio resources allocated for other UE are superposed each other.

2 . The method according to claim 1 , wherein at least one of a subcarrier spacing and a time-domain scheduling unit of the radio resource for providing the first service is different from that of the radio resource for providing the second service.

3 . The method according to claim 1 , wherein the configuration information is received through UE-specific radio resource control (RRC) signaling.

4 . The method according to claim 1 , wherein the DL preemption indication information is received through a common search space or a group common search space of a DL control channel.

5 . The method according to claim 1 , wherein the DL preemption indication information is received through a UE-specific search space of a DL control channel.

6 . A method of a base station for transmitting a downlink (DL) signal,
the method comprising: generating configuration information for monitoring DL preemption indication information; transmitting the configuration information to a user equipment (UE); and transmitting the DL preemption indication information based on the configuration information through a multicast signal, wherein the DL preemption indication information includes information for indicating superposed radio resources on which radio resources allocated for the UE and radio resources allocated for other UE are superposed each other.

7 . The method according to claim 6 , wherein at least one of a subcarrier spacing and a time-domain scheduling unit of the radio resource for providing the first service is different from that of the radio resource for providing the second service.

8 . The method according to claim 6 , wherein the configuration information is transmitted through UE-specific radio resource control (RRC) signaling.

9 . The method according to claim 6 , wherein the DL preemption indication information is transmitted through a common search space or a group common search space of a DL control channel.

10 . The method according to claim 6 , wherein the DL preemption indication information is transmitted through a UE-specific search space of a DL control channel.

11 . A user equipment (UE) for receiving a downlink (DL) signal, the user equipment comprising:
a receiver receiving configuration information for receiving DL preemption indication information form a base station; and a controller monitoring the DL preemption indication information based on the configuration information, wherein the receiver receives the DL preemption indication information through a multicast signal, wherein the DL preemption indication information includes information for indicating superposed radio resources where radio resources allocated for the UE and radio resources allocated for other UE are superposed each other.

12 . The user equipment according to claim 11 , wherein at least one of a subcarrier spacing and a time-domain scheduling unit of the radio resource for providing the first service is different from that of the radio resource for providing the second service.

13 . The user equipment according to claim 11 , wherein the configuration information is received through UE-specific radio resource control (RRC) signaling.

14 . The user equipment according to claim 11 , wherein the DL preemption indication information is received through a common search space or a group common search space of a DL control channel.

15 . The user equipment according to claim 11 , wherein the DL preemption indication information is received through a UE-specific search space of a DL control channel.

16 . (canceled)

17 . (canceled)

18 . (canceled)

19 . (canceled)

20 . (canceled)

Assignees

• Kt Corp

Inventors

• Park Kyujin
• Choi Woo-Jin

Classifications

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/535 Primary

  based on resource usage policies · CPC title

• H04L5/0094

  Indication of how sub-channels of the path are allocated · CPC title

• H04L5/0044

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title

• H04L5/0007

  the frequencies being orthogonal, e.g. OFDM(A) or DMT · CPC title