The method and apparatus for wireless communication

Patent metadata

Field	Value
Publication number	US-2016192350-A1
Application number	US-201414910521-A
Country	US
Kind code	A1
Filing date	Aug 6, 2014
Priority date	Aug 6, 2013
Publication date	Jun 30, 2016
Grant date	—

Abstract

The invention is related to a wireless communication by user equipment (UE) based on capability of the UE. According to this application, signals are received on a downlink channel including a downlink control channel and a downlink data channel, a parameter is configured for the wireless communication based on the capability of the UE and information in the downlink control channel, and signals are transmitted on a uplink channel based on the configured parameter, wherein the signals are transmitted to at least two cells.

First claim

1 . A method for wireless communication by user equipment (UE) based on capability of the UE, the method comprising:
receiving signals on a downlink channel including a downlink control channel and a downlink data channel; configuring a parameter for the wireless communication based on the capability of the UE and information in the downlink control channel; and transmitting signals on a uplink channel based on the configured parameter, wherein the signals are transmitted to at least two cells.

2 . The method of claim 1 , wherein, as for the capability of the UE, the UE supports simultaneous transmission of uplink control channel and uplink shared channel, and the UE supports non-contiguous resource allocation, and
wherein in the step of configuration parameter, uplink control channel and uplink shared channel are transmitted concurrently with different carriers when simultaneous is not supported by one cell among the cells.

3 . The method of claim 1 , wherein simultaneous transmission of uplink control channel and uplink shared channel for the UE is assumed across carrier groups but is not configured within a carrier group when the UE supports dual connectivity but it does not support simultaneous transmission of uplink control channel and uplink shared channel.

4 . The method of claim 1 , wherein simultaneous PUCCH-PUSCH (and PUCCH-PUCCH) transmission across different carrier groups can be assumed for the UE when the UE supports dual connectivity.

5 . The method of claim 1 , wherein in the step of transmitting signals, power headroom report for uplink control channel is transmitted in a subframe where power headroom report for uplink shared channel is transmitted when simultaneous transmission of the uplink control channel and the uplink shared channel is configured.

6 . The method of claim 1 , wherein in the step of transmitting signals, power headroom report for uplink control channel is transmitted for a component carrier in different carrier group while power headroom report for uplink control channel is transmitted based on the capability of the UE for a component carrier in same carrier group.

7 . The method of claim 6 , wherein power headroom report for uplink control channel is transmitted for the component carrier in the same carrier group when simultaneous transmission of uplink control channel and uplink shared channel is not configured.

8 . The method of claim 1 , wherein in the step of transmitting signals, power headroom reports for uplink control channel and uplink shared channel are enabled regardless capability of the UE for simultaneous transmission of uplink control channel and uplink shared channel.

9 . The method of claim 1 , wherein the step of receiving signals includes receiving information on radio resource control (RRC) configuration which is reconfigured between cells,
wherein the step of configuring the parameter includes reconfiguring RRC configuration based on the capability of the UE, and wherein the step of transmitting signals includes transmitting signals based on the reconfigured RRC configuration.

10 . The method of claim 9 , wherein in the step of configuring the parameter, the received RRC configuration is ignored when the received configuration is not supported by the UE.

11 . The method of claim 9 , wherein in the step of configuring the parameter, RRC configuration is reconfigured based on configuration which is enabled to be supported by the UE.

12 . The method of claim 9 , wherein the RRC configuration is a configuration on multiple-input multiple-output (MIMO), and
wherein the RRC configuration is configured by a cell managed by master nodeB among the cells.

13 . The method of claim 12 , wherein the configuration on MIMO is configured based on the report on the capability for MIMO of the UE which support non-contiguous resource allocation.

14 . The method of claim 9 , wherein the RRC configuration is a configuration on channel state information (CSI), and
wherein the RRC configuration is configured by a cell managed by master nodeB among the cells.

15 . An user equipment (UE) for wireless communication, the UE comprising:
a radio frequency (RF) unit for transmitting and receiving a radio signal; and a processor operatively coupled to the RF unit, wherein the processor configures a parameter for the wireless communication based on the capability of the UE and information in the downlink control channel, wherein the processor transmits signals via the RF unit on a uplink channel based on the configured parameter, and wherein the signals are transmitted to at least two cells.

Assignees

• Lg Electronics Inc

Inventors

• Yi Yunjung
• Ahn Joonkui
• Seo Dongyoun
• Kim Bonghoe
• Yang Suckchel
• Kim Kijun

Classifications

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04L5/0035

  Resource allocation in a cooperative multipoint environment · CPC title

• H04W52/365

  Power headroom reporting · CPC title

• H04W72/0413 Primary

  Electricity · mapped topic

• H04W52/325

  Power control of control or pilot channels · CPC title