Wireless communication method, base station, transmission/reception point, user equipment and wireless communication system

Patent metadata

Field	Value
Publication number	US-2016183222-A1
Application number	US-201314908077-A
Country	US
Kind code	A1
Filing date	Jul 29, 2013
Priority date	Jul 29, 2013
Publication date	Jun 23, 2016
Grant date	—

Abstract

The present disclosure provides a wireless communication method, a transmission/reception point, a user equipment and a wireless communication system, the wireless communication method comprising a step of: receiving the UL/DL configuration for the UE in a common search space of a specific time/frequency resource associated with a specific TP/RP, wherein, the UE is attached to the specific TP/RP, and the association between a number index of the specific TP/RP and an index of the specific time/frequency resource is predefined.

First claim

1 - 9 . (canceled)

10 . A wireless communication method of receiving uplink/downlink (UL/DL) configuration by a user equipment (UE), in a wireless communication system including multiple transmission/reception points (TP/RPs), comprising a step of:
receiving the UL/DL configuration for the UE in a UE group common search space of a common search space of a specific time/frequency resource associated with a specific UE group, wherein, the UE is grouped into the specific UE group, and the association between a number index of the specific UE group and an index of the specific time/frequency resource is predefined.

11 . The wireless communication method according to claim 10 , wherein
the association is hard coded, or indicated by a high-layer signaling.

12 . The wireless communication method according to claim 10 , wherein
the index comprises at least one of a subframe number, a Physical Resource Block (PRB) index, a Control Channel Element (CCE) index, a Enhanced Physical Downlink Control Channel (EPDCCH) set index and a UE Cell Radio Network Temporary Identifier (C-RNTI).

13 . The wireless communication method according to claim 10 , wherein
the number index of the specific UE group is associated with a subframe number indicating a specific subframe which is assigned for Time Division Duplexing (TDD) UL/DL configuration transmission; and the association is based on mod(UE group number, X), wherein, UE group number is the number index of the specific UE group, and X is the number of subframes available for the TDD UL/DL configuration transmission.

14 . The wireless communication method according to claim 10 , wherein
the number index of the specific UE group is associated with a subframe number indicating a specific subframe which is assigned for Time Division Duplexing (TDD) UL/DL configuration transmission; and the TDD UL/DL configuration for the UE in the specific UE group is further identified by bits in Downlink Control Information (DCI), when the number of UE groups is larger than the number of subframes available for the TDD UL/DL configuration transmission.

15 . The wireless communication method according to claim 10 , wherein
the number index of the specific UE group is associated with a subframe number indicating a specific subframe which is assigned for Time Division Duplexing (TDD) UL/DL configuration transmission; and the TDD UL/DL configuration for the UE in the specific UE group is further identified by at least one of a Physical Resource Block (PRB) index, a Control Channel Element (CCE) index, a Enhanced Physical Downlink Control Channel (EPDCCH) set index and a UE Cell Radio Network Temporary Identifier (C-RNTI), when the number of UE groups is larger than the number of subframes available for the TDD UL/DL configuration transmission.

16 . A wireless communication method of transmitting uplink/downlink (UL/DL) configuration by a base station, in a wireless communication system including multiple transmission/reception points (TP/RPs), comprising a step of:
transmitting the UL/DL configuration to a user equipment (UE), in a UE group common search space of a common search space of a specific time/frequency resource associated with a specific UE group; wherein, the UE is grouped into the specific UE group, and the association between a number index of the specific UE group and an index of the specific time/frequency resource is predefined.

17 . A wireless communication method of receiving uplink/downlink (UL/DL) configuration by a user equipment (UE), in a wireless communication system including multiple transmission/reception points (TP/RPs), comprising a step of:
receiving the UL/DL configuration for the UE from a TP/RP to which it is attached, in a UE group common search space of a UE specific search space of a specific time/frequency resource associated with a specific UE group, wherein, the UE is grouped into the specific UE group, and the association between a number index of the specific UE group and an index of the specific time/frequency resource is predefined.

18 . A wireless communication method of transmitting uplink/downlink (UL/DL) configuration by a transmission/reception point (TP/RP), in a wireless communication system including multiple TP/RPs, comprising a step of:
transmitting the UL/DL configuration to a user equipment (UE) attached to the TP/RP, in a UE group common search space of a UE specific search space of a specific time/frequency resource associated with a specific UE group; wherein, the UE is grouped into the specific UE group, and the association between a number index of the specific UE group and an index of the specific time/frequency resource is predefined.

19 - 27 . (canceled)

28 . A user equipment (UE) of receiving uplink/downlink (UL/DL) configuration, in a wireless communication system including multiple transmission/reception points (TP/RPs), comprising:
a receiver which receives the UL/DL configuration for the UE in a UE group common search space of a common search space of a specific time/frequency resource associated with a specific UE group, wherein, the UE is grouped into the specific UE group, and the association between a number index of the specific UE group and an index of the specific time/frequency resource is predefined.

29 . The user equipment according to claim 28 , wherein
the association is hard coded, or indicated by a high-layer signaling.

30 . The user equipment according to claim 28 , wherein
the index comprises at least one of a subframe number, a Physical Resource Block (PRB) index, a Control Channel Element (CCE) index, a Enhanced Physical Downlink Control Channel (EPDCCH) set index and a UE Cell Radio Network Temporary Identifier (C-RNTI).

31 . The user equipment according to claim 28 , wherein
the number index of the specific UE group is associated with a subframe number indicating a specific subframe which is assigned for Time Division Duplexing (TDD) UL/DL configuration transmission; and the association is based on mod(UE group number, X), wherein, UE group number is the number index of the specific UE group, and X is the number of subframes available for the TDD UL/DL configuration transmission.

32 . The user equipment according to claim 28 , wherein
the number index of the specific UE group is associated with a subframe number indicating a specific subframe which is assigned for Time Division Duplexing (TDD) UL/DL configuration transmission; and the TDD UL/DL configuration for the UE in the specific UE group is further identified by bits in Downlink Control Information (DCI), when the number of UE groups is larger than the number of subframes available for the TDD UL/DL configuration transmission.

33 . The user equipment according to claim 28 , wherein
the number index of the specific UE group is associated with a subframe number indicating a specific subframe which is assigned for Time Division Duplexing (TDD) UL/DL configuration transmission; and the TDD UL/DL configuration for the UE in the specific UE group is further identified by at least one of a Physical Resource Block (PRB) index, a Control Channel Element (CCE) index, a Enhanced Physical Downlink Control Channel (EPDCCH) set index and a UE Cell Radio Network Temporary Identifier (C-RNTI), when the number of UE groups is larger than the number of subframes available for the TDD UL/DL configuration transmission.

34 . A base station of transmitting uplink/downlink (UL/DL) configuration, in a wireless communication system including multiple transmission/reception points

Assignees

• Panasonic Ip Corp America

Inventors

• Suzuki Hidetoshi
• Golitschek Edler Von Elbwart Alexander
• Hoshino Masayuki
• Wang Lilei

Classifications

• H04W72/23 Primary

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

• H04L5/0073

  Allocation arrangements that take into account other cell interferences · CPC title

• H04L5/1469

  using time-sharing · CPC title

• H04W72/0446 Primary

  Resources in time domain, e.g. slots or frames · CPC title

• H04L5/0035

  Resource allocation in a cooperative multipoint environment · CPC title