US 11,121,849 B2Granted

TDD uplink/downlink re-configuration mechanism

AssigneeSun Patent Trust

InventorsAlexander Golitschek Edler von Elbwart, Hidetoshi Suzuki, Lilei Wang

Life of this patent

Estimating the term…

Loading patent…

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.

Claims6

Dependent claims

An integrated circuit comprising:

an input node which, in operation, inputs data;
an output node which, in operation, outputs data;
and
processing circuitry, which is coupled to the input node and the output node and which, in operation, controls a process of a mobile station to communicate with a base station, wherein the process includes:
receiving a command for reconfiguration from a source uplink/downlink configuration to a target uplink/downlink configuration, wherein the source uplink/downlink configuration is one out of a plurality of uplink/downlink configurations and the target uplink/downlink configuration is one of the plurality of uplink/downlink configurations, the plurality of uplink/downlink configurations being configured for Time Division Duplex (TDD) communication;
in response to the communication being reconfigured for a subframe N at the beginning of a radio frame, performing physical uplink shared channel (PUSCH) power control based on a transmit power control (TPC) command for PUSCH transmission, including:
applying the source uplink/downlink configuration in the PUSCH power control for one or more subframes up to and including subframe N based on the TPC command for PUSCH transmission, and
applying the target uplink/downlink configuration in the PUSCH power control for one or more subframes from subframe N+1 onward based on the TPC command for PUSCH transmission;
and
transmitting the PUSCH based on the performed PUSCH power control.

7 more elements

An integrated circuit for controlling communication of a mobile station with a base station, the mobile station comprising:

reception circuitry, which, in operation controls reception of a command for reconfiguration from a source uplink/downlink configuration to a target uplink/downlink configuration, wherein the source uplink/downlink configuration is one out of a plurality of uplink/downlink configurations and the target uplink/downlink configuration is one of the plurality of uplink/downlink configurations, the plurality of uplink/downlink configurations being configured for Time Division Duplex (TDD) communication;
processing circuitry, which is coupled to the reception circuitry and which, in response to the communication being reconfigured for a subframe N at the beginning of a radio frame, performs physical uplink shared channel (PUSCH) power control based on a transmit power control (TPC) command for PUSCH transmission, wherein
the source uplink/downlink configuration is applied in the PUSCH power control for one or more subframes up to and including subframe N based on the TPC command for PUSCH transmission, and
the target uplink/downlink configuration is applied in the PUSCH power control for one or more subframes from subframe N+1 onward based on the TPC command for PUSCH transmission;
and
transmission circuitry, which is coupled to the processing circuitry and which, in operation, controls transmission of the PUSCH based on the performed PUSCH power control.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/733,000Filed 2 Jan 2020 · continuation
Priority: 18 Dec 2017
Published: US 2020/0145180 A17 May 2020
Granted: 14 Sep 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04L 5/22
Arrangements affording multiple use of the transmission path: using time-division multiplexing
H04W 52/146
Separate analysis of uplink or downlink: uplink power control
H04L 1/1854
Arrangements specially adapted for the receiver end: scheduling and prioritising arrangements
H04L 5/005
Allocation of pilot signals, i.e. of signals known to the receiver: of common pilots, i.e. pilots destined for multiple users or terminals

Family

PCT/CN2013/081221Parent of this continuation · filed 9 Aug 2013
Application15/845,706Parent of this continuation · filed 18 Dec 2017
US 9,876,628 B2Parent of this continuation · filed 23 Jan 2018
Application16/352,564Parent of this continuation · filed 13 Mar 2019
US 10,291,385 B2Parent of this continuation · filed 14 May 2019
US 2020/0145180 A1Pre-grant publication · published 7 May 2020
US 10,560,250 B2Parent of this continuation
Application14/909,975Parent of this continuation
US 2016/0182213 A1Published application
US 2018/0145820 A1Published application
US 2019/0215141 A1Published application
US 11,121,849 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key