Data signal transmission in a wireless communication system with reduced end-to-end latency

Patent metadata

Field	Value
Publication number	US-12355704-B2
Application number	US-202418980223-A
Country	US
Kind code	B2
Filing date	Dec 13, 2024
Priority date	Dec 18, 2015
Publication date	Jul 8, 2025
Grant date	Jul 8, 2025

Abstract

A receiver is configured is configured to receive a data signal, the data signal having at least one data signal block, the data signal block having a predefined duration in the time domain, a number of symbols in the time domain and a bandwidth in the frequency domain, wherein the data signal block is received over a plurality of transmission intervals, wherein a length of one transmission interval is shorter than the duration of the data signal block so that a subset of the symbols of the data signal block is received over one transmission interval, and wherein the receiver includes a signal processing device configured to process the symbols of the data signal block which have been received over one transmission interval.

First claim

The invention claimed is:

1. A receiver,
wherein the receiver receives at least a part of a data signal, the data signal comprising a plurality of frames, the plurality of frames comprising at least a first frame received in one frequency band and a second frame received in another frequency band,
wherein the first frame comprises a first format with a predefined duration in the time domain, a number of symbols in the time domain, and a bandwidth in the frequency domain,
wherein the second frame comprises a second format with a predefined duration in the time domain, a number of symbols in the time domain, and a bandwidth in the frequency domain, the first format and the second format being different at least in terms of the duration in the time domain or the bandwidth in the frequency domain,
wherein the receiver comprises a signal processing device for processing the first format and the second format,
wherein the first frame is a frame of a first type, and the second frame is a frame of a second type different from the first type,
wherein the receiver is to use the first frame as an access point to synchronize and to discover where to find the other frequency band for the second frame, and
wherein, responsive to a signaling that indicates that the other frequency band for the second frame is to be processed, the receiver does not process the frequency band for the first frame and decode the other frequency band for the second frame.

2. The receiver of claim 1 , wherein the first frame is a LTE frame, and the second frame is a frame different from the LTE frame.

3. The receiver of claim 1 , wherein the second frame is a ULD frame.

4. The receiver of claim 1 , wherein the first and second frames are received by using Carrier Aggregation.

5. The receiver of claim 1 , wherein the receiver is to receive the first frame from a first transmitter and the second frame from a second transmitter.

6. The receiver of claim 1 , wherein the receiver dynamically uses at least in part of the resource blocks or subframes a reduced transmission time interval (TTI).

7. The receiver of claim 1 , wherein the receiver receives a configuration indicating the reduced TTI via an radio resource control (RRC) message or using a modified downlink control information (DCI) format.

8. The receiver of claim 7 , wherein the modified DCI format indicates a TTI length used at a given moment.

9. The receiver of claim 1 , wherein the bandwidth of the first frame comprises at least 5 MHz.

10. A transmitter,
wherein the transmitter transmits at least a part of a data signal, the data signal comprising a plurality of frames, the plurality of frames comprising at least a first frame transmitted in one frequency band and a second frame transmitted in another frequency band,
wherein the first frame comprises a first format with a predefined duration in the time domain, a number of symbols in the time domain, and a bandwidth in the frequency domain,
wherein the second frame comprises a second format with a predefined duration in the time domain, a number of symbols in the time domain, and a bandwidth in the frequency domain, the first format and the second format being different at least in terms of the duration in the time domain or the bandwidth in the frequency domain,
wherein the first frame is a frame of a first type, and the second frame is a frame of a second type different from the first type,
wherein a receiver uses the first frame as an access point to synchronize and to discover where to find the other frequency band for the second frame, and
wherein, responsive to a signaling that indicates that the other frequency band for the second frame is to be processed, the receiver does not process the frequency band for the first frame and decode the other frequency band for the second frame.

11. A method, comprising:
receiving, by a receiver, at least a part of a data signal, the data signal comprising a plurality of frames, the plurality of frames comprising at least a first frame received in one frequency band and a second frame received in another frequency band, and
wherein the first frame comprises a first format with a predefined duration in the time domain, a number of symbols in the time domain, and a bandwidth in the frequency domain,
wherein the second frame comprises a second format with a predefined duration in the time domain, a number of symbols in the time domain, and a bandwidth in the frequency domain, the first format and the second format being different at least in terms of the duration in the time domain or the bandwidth in the frequency domain, and
processing, by the receiver, the first format and the second format,
wherein the first frame is a frame of a first type, and the second frame is a frame of a second type different from the first type,
wherein the first frame is used by the receiver as an access point to synchronize and to discover where to find the other frequency band for the second frame, and
wherein, responsive to a signaling that indicates that the other frequency band for the second frame is to be processed, the receiver does not process the frequency band for the first frame and decode the other frequency band for the second frame.

Assignees

• Fraunhofer Ges Forschung

Inventors

• Hellge Cornelius
• Sánchez De La Fuente Yago
• Schierl Thomas
• Haustein Thomas
• Thiele Lars
• Wirth Thomas
• Kurras Martin
• Raschkowski Leszek
• Rykova Tatiana

Classifications

• H04W84/042

  Public Land Mobile systems, e.g. cellular systems · CPC title

• H04W16/14

  Spectrum sharing arrangements {between different networks} · CPC title

• H04L27/2603

  Signal structure ensuring backward compatibility with legacy system · CPC title

• H04L5/0048

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04L27/2602 Primary

  Signal structure · CPC title