Tdd uplink/downlink re-configuration mechanism

Patent metadata

Field	Value
Publication number	US-2016182213-A1
Application number	US-201314909975-A
Country	US
Kind code	A1
Filing date	Aug 9, 2013
Priority date	Aug 9, 2013
Publication date	Jun 23, 2016
Grant date	—

Abstract

The invention relates to methods for communicating within a communication system when re-configured from a source to a target uplink/downlink configuration. The invention is also providing mobile station for performing these methods, and computer readable media the instructions of which cause the mobile station to perform the methods described herein. Specifically, the invention suggests to perform PUSCH transmissions in response to Downlink Control Information, DCI, transmissions such that the source uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received up to and including subframe N−6, a predefined uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received during subframes N−5 to N−1; and the target uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received from subframe N onward.

First claim

1 - 32 . (canceled)

33 . A mobile station for communicating with a base station in a communication system, the communication being re-configured from a source to a target uplink/downlink configuration,
wherein the source uplink/downlink configuration is one out of a subset of a plurality of uplink/downlink configurations and the target uplink/downlink configuration is any one of the plurality of uplink/downlink configurations, the plurality of uplink/downlink configurations being pre-configured for Time Division Duplex, TDD, communication, wherein: in the event that the communication is to be re-configured for a predetermined subframe N at the beginning of a radio frame, the mobile station is to perform Physical Uplink Shared Channel, PUSCH, transmissions in response to Downlink Control Information, DCI, transmissions such that:
the source uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received up to and including subframe N−6;
a predefined uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received during subframes N−5 to N−1; and
the target uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received from subframe N onward;
wherein the predefined uplink/downlink configuration is one of out of the plurality of uplink/downlink configurations.

34 . The mobile station according to claim 33 wherein the predefined uplink/downlink configuration is different from the source uplink/downlink configuration.

35 . The mobile station according to claim 33 , wherein:
the plurality of uplink/downlink configurations are uplink/downlink configurations 0-6; the source uplink/downlink configuration is one out of the subset of uplink/downlink configurations 1-6; and the predefined uplink/downlink configuration is uplink/downlink configuration 6.

36 . A mobile station for communicating with a base station in a communication system, the communication being re-configured from a source to a target uplink/downlink configuration,
wherein the source uplink/downlink configuration is a predefined one out of a plurality of uplink/downlink configurations and the target uplink/downlink configuration is any one of the plurality of uplink/downlink configurations, the plurality of uplink/downlink configurations being pre-configured for Time Division Duplex, TDD, communication, wherein: in the event that the communication is to be re-configured for a predetermined subframe N at the beginning of a radio frame, the mobile station is to perform Physical Uplink Shared Channel, PUSCH, transmissions in response to Downlink Control Information, DCI, transmissions such that:
the source uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received up to and including subframe N;
the target uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received from subframe N+1 onward.

37 . The mobile station according to claim 36 , wherein:
the plurality of uplink/downlink configurations are uplink/downlink configurations 0-6; the source uplink/downlink configuration is uplink/downlink configuration 0.

38 . The mobile station according to claim 33 , wherein each of the plurality of uplink/downlink configurations determines a timing offset between said DCI transmissions and the corresponding PUSCH transmissions.

39 . The mobile station according to claim 33 , wherein the source uplink/downlink configuration denotes whether a subframe is reserved for downlink transmissions, uplink transmissions, or denotes a special subframe supporting downlink as well as uplink transmissions, up to and including subframe N−1, and
wherein the target uplink/downlink configuration denotes whether a subframe is reserved for downlink transmissions, uplink transmissions, or denotes a special subframe supporting downlink as well as uplink transmissions, from subframe N onward.

40 . The mobile station according to claim 33 , wherein in the event that an information is distributed within the communication system which indicates that the communication between a mobile station and a base station is to be re-configured, and where the information is distributed within an interval including and after subframe N−14 up to and including subframe N−5, the distribution of the information causes the communication to be re-configured for the predetermined subframe N, wherein N is a subframe at the beginning of a radio frame.

41 . The mobile station according to claim 33 , wherein the mobile station is to perform Hybrid ARQ-ACK transmissions in response to Physical Downlink Shared Channel, PDSCH, transmissions such that:
the source uplink/downlink configuration is applied to Hybrid ARQ-ACK transmissions up to and including subframe N−1; another predefined uplink/downlink configuration is applied to Hybrid ARQ-ACK transmissions during subframes N to N+12; and the target uplink/downlink configuration is applied to Hybrid ARQ-ACK transmissions from subframe N+13 onward; wherein the other predefined uplink/downlink configuration is one of out of the plurality of uplink/downlink configurations.

42 . The mobile station according to claim 41 , wherein the other predefined uplink/downlink configuration is different from the target uplink/downlink configuration.

43 . The mobile station according to claim 41 , wherein: the other predefined uplink/downlink configuration is uplink/downlink configuration 5.

44 . The mobile station according to claim 41 , wherein within the communication system an information is distributed that indicates which one out of the plurality of uplink/downlink configurations corresponds to the other predefined uplink/downlink configuration to be applied to Hybrid ARQ-ACK transmissions during subframes N to N+12.

45 . The mobile station according to claim 41 , wherein each of the plurality of uplink/downlink configurations determines a timing offset between said PDSCH transmission and the corresponding Hybrid ARQ-ACK transmission.

46 . The mobile station according to claim 41 , wherein, in response to a Physical Downlink Shared Channel, PDSCH, transmission,
in the event that the source uplink/downlink configuration is applied, and where same source uplink/downlink configuration prescribes a Hybrid ARQ-ACK transmission up to and including subframe N−1, the Hybrid ARQ-ACK transmission relating to the PDSCH transmission, and in the event that the other predefined uplink/downlink configuration is applied, and where same other predefined uplink/downlink configuration prescribes a Hybrid ARQ-ACK transmission during subframes N to N+12, the Hybrid ARQ-ACK transmission relating to the PDSCH transmission, the mobile station is to only perform the Hybrid ARQ-ACK transmission up to and including subframe N−1; or, alternatively, the mobile station is to only perform the Hybrid ARQ-ACK transmission during subframes N to N+12.

47 . The mobile station according to claim 41 , wherein, in the event that the other predefined uplink/downlink configuration is applied, and where same other predefined uplink/downlink configuration prescribes a Hybrid ARQ-ACK transmission during subframes N to N+12 for at least one subframe that is configured to only support uplink transmissions, said at least one subframe being within an interval of subframe N−11 up to and including subframe N−1,
the mobile station is to perform Hybrid ARQ-ACK transmissions during subframes N to N+12 only relating to subframes that are configured to support downlink transmission;

Assignees

• Panasonic Ip Corp America

Inventors

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

Classifications

• H04L1/1854

  Scheduling and prioritising arrangements · CPC title

• H04L5/22 Primary

  using time-division multiplexing · CPC title

• H04L5/005

  of common pilots, i.e. pilots destined for multiple users or terminals · CPC title

• H04W52/146 Primary

  Uplink power control · CPC title