METHOD FOR PROVIDING TRANSMISSION POWER IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME

• US 20150016376A1
• Filed: 02/07/2013
• Published: 01/15/2015
• Est. Priority Date: 02/10/2012
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Seo, Hanbyul
• Granted Patent: US 9,935,748 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/1822 involving configuration of automatic repeat request [ARQ] with parallel processes
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0092 Indication of how the channel is divided
• CPC Class Codes: H04W 52/04 TPC
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

in the present invention, disclosed is a method for a user equipment transreceiving signals with a network in a wireless communication system. More particularly, the method comprises the steps of: receiving a downlink control channel from the network; and either transmitting an uplink data channel to the network or receiving a downlink data channel from the network, depending on scheduling information included in the downlink control channel, wherein the scheduling information includes information with respect to a reference signal-to-downlink data channel power ratio.

Claims

1. A method for, at a user equipment (UE), transmitting and receiving a signal to and from a network in a wireless communication system, the method comprising:

receiving a downlink control channel from the network; and

performing one of transmission of an uplink data channel to the network or reception of a downlink data channel from the network according to scheduling information included in the downlink control channel,

wherein the scheduling information includes information on a reference signal (RS)-to-downlink data channel power ratio.

2. The method according to claim 1, further comprising receiving one or more RS-to-downlink data channel power ratio values from the network via a higher layer signal.

3. The method according to claim 2, wherein, if the scheduling information is related to reception of the downlink data channel, the information on the RS-to-downlink data channel power ratio includes a field having a predetermined bit size and indicating an RS-to-downlink data channel power ratio value for receiving a downlink data channel from a serving cell of the network, among the one or more RS-to-downlink data channel power ratio values.

4. The method according to claim 2, wherein, if the scheduling information is related to transmission of the uplink data channel, the information on the RS-to-downlink data channel power ratio includes a field having a predetermined bit size and indicating an RS-to-downlink data channel power ratio value of a downlink data channel to be assumed when reporting a channel state to a serving cell of the network, among the one or more RS-to-downlink data channel power ratio values.

5. The method according to claim 1, wherein, if the scheduling information is related to transmission of the uplink data channel,

the information on the RS-to-downlink data channel power ratio includes a field having a predetermined bit size and indicating one of subframe sets for reporting a channel state report to a serving cell of the network, and

for each of the subframe sets, an RS-to-downlink data channel power ratio value of a downlink data channel to be assumed upon reporting a channel state is predetermined via a higher layer signal.

6. The method according to claim 1, wherein the information on the RS-to-downlink data channel power ratio has the same bit size when the scheduling information is related to transmission of the uplink data channel and when the scheduling information is related to reception of the downlink data channel.

7. The method according to claim 1, wherein the information on the RS-to-downlink data channel power ratio is related to a reduced power almost blank subframe (r-ABS) in which transmit power of the downlink data channel is reduced.

8. A method for, at a network, transmitting and receiving a signal to and from a user equipment (UE) in a wireless communication system, the method comprising:

transmitting a downlink control channel to the UE; and

performing one of reception of an uplink data channel from the UE or transmission of a downlink control channel to the UE according to scheduling information included in the downlink control channel,

wherein the scheduling information includes information on a reference signal (RS)-to-downlink control channel power ratio.

9. The method according to claim 8, further comprising transmitting one or more RS-to-downlink data channel power ratio values to the UE via a higher layer signal.

10. The method according to claim 9, wherein, if the scheduling information is related to reception of the downlink data channel, the information on the RS-to-downlink data channel power ratio includes a field having a predetermined bit size and indicating an RS-to-downlink data channel power ratio value for transmitting a downlink data channel at a serving cell of the network, among the one or more RS-to-downlink data channel power ratio values.

11. The method according to claim 9, if the scheduling information is related to reception of the uplink data channel, the information on the RS-to-downlink data channel power ratio includes a field having a predetermined bit size and indicating an RS-to-downlink data channel power ratio value of a downlink data channel to be assumed when the UE reports a channel state to a serving cell of the network, among the one or more RS-to-downlink data channel power ratio values.

12. The method according to claim 8, wherein, if the scheduling information is related to reception of the uplink data channel,

the information on the RS-to-downlink data channel power ratio includes a field having a predetermined bit size and indicating one of subframe sets for reporting a channel state report to a serving cell of the network, and

for each of the subframe sets, an RS-to-downlink data channel power ratio value of a downlink data channel to be assumed upon reporting a channel state is predetermined via a higher layer signal.

13. The method according to claim 8, wherein the information on the RS-to-downlink data channel power ratio has the same bit size when the scheduling information is related to reception of the uplink data channel and when the scheduling information is related to transmission of the downlink data channel.

14. The method according to claim 8, wherein the information on the RS-to-downlink data channel power ratio is related to a reduced power almost blank subframe (r-ABS) in which transmit power of the downlink data channel is reduced.