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

Patent metadata

Field	Value
Publication number	US-12368561-B2
Application number	US-202318312517-A
Country	US
Kind code	B2
Filing date	May 4, 2023
Priority date	Dec 18, 2015
Publication date	Jul 22, 2025
Grant date	Jul 22, 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 user device, UE, for a wireless communication system,
wherein the UE receives a data signal,
wherein the data signal comprises at least one data signal block having a plurality of resource elements, the data signal block having a predefined duration in the time domain, and the plurality of resource elements comprising a number of symbols in the time domain and a number of sub-carriers in the frequency domain,
wherein the plurality of resource elements comprises first resource elements allocated to a control area and second resource elements allocated to a data area, the control area used for transmitting control information, and the control information indicating whether the data area transmits data assigned to the UE and to be eventually decoded by the UE,
wherein the UE comprises a signal processing device configured to process the symbols of the data signal block which have been received,
wherein the first resource elements are allocated dynamically using an RRC message including an indication of the first resource elements, and
wherein the UE receives the RRC message including the indication of the first resource elements used for transmitting the control information, searches the control area by decoding the first resource elements which are indicated in the RRC message and decodes the second resource elements allocated to data area.

2. The user device, UE, of claim 1 , wherein the UE is to search the control area by decoding a number of symbols indicated in the RRC message and eventually decodes the second resource elements allocated to the data area.

3. The user device, UE, of claim 1 , wherein the control information and data are decoupled in that
the control information is transmitted in one part of a subframe or slot and the data assigned to the UE is transmitted in another part of the subframe or slot, or
the control information is transmitted in a first subframe or slot and the data assigned to the UE is transmitted in second subframe or slot following the first subframe.

4. A base station for a wireless communication,
wherein the base station transmits a data signal, the data signal comprising at least one data signal block having a plurality of resource elements, the data signal block having a predefined duration in the time domain, and the plurality of resource elements comprising a number of symbols in the time domain and a number of sub-carriers in the frequency domain,
wherein the plurality of resource elements comprises first resource elements allocated to a control area and second resource elements allocated to a data area, the control area used for transmitting control information, and the control information indicating whether the data area transmits data assigned to a certain user device, UE, and to be eventually decoded by the certain UE,
wherein the first resource elements are allocated dynamically using an RRC message including an indication of the first resource elements, and
wherein the base stations signals to the certain UE the RRC message including the indication of the first resource elements used for transmitting the control information.

5. A wireless communication system, comprising:
a user device, UE, and
a base station, wherein
the base station transmits a data signal, the data signal comprising at least one data signal block having a plurality of resource elements, the data signal block having a predefined duration in the time domain, and the plurality of resource elements comprising a number of symbols in the time domain and a number of sub-carriers in the frequency domain,
wherein the plurality of resource elements comprises first resource elements allocated to a control area and second resource elements allocated to a data area, the control area used for transmitting control information, and the control information indicating whether the data area transmits data assigned to the UE and to be eventually decoded by the UE,
wherein the first resource elements are allocated dynamically using an RRC message including an indication of the first resource elements, and
the base station signals to the UE the RRC message including the indication of the first resource elements used for transmitting the control information, and

wherein the UE receives from the base station the RRC message including the indication of the first resource elements used for transmitting the control information, searches the control area by decoding the first resource elements which are indicated in the RRC message and decodes the second resource elements allocated to data area.

6. A method, comprising:
receiving, by a user device, UE, a data signal, the data signal comprising at least one data signal block having a plurality of resource elements, the data signal block having a predefined duration in the time domain, and the plurality of resource elements comprising a number of symbols in the time domain and a number of sub-carriers in the frequency domain,
wherein the plurality of resource elements comprises first resource elements allocated to a control area and second resource elements allocated to a data area, the control area used for transmitting control information, and the control information indicating whether the data area transmits data assigned to the UE and to be eventually decoded by the UE, and
wherein the first resource elements are allocated dynamically using an RRC message including an indication of the first resource elements,
receiving, by the UE, the RRC message including the indication of the first resource elements used for transmitting the control information,
searching, by the UE, the control area by decoding the first resource elements which are indicated in the RRC message, and
decoding, by the UE, the second resource elements allocated to data area.

7. A non-transitory computer program product comprising a computer readable medium storing instructions which, when executed on a computer, carry out a method comprising:
receiving, by a user device, UE, a data signal, the data signal comprising at least one data signal block having a plurality of resource elements, the data signal block having a predefined duration in the time domain, and the plurality of resource elements comprising a number of symbols in the time domain and a number of sub-carriers in the frequency domain,
wherein the plurality of resource elements comprises first resource elements allocated to a control area and second resource elements allocated to a data area, the control area used for transmitting control information, and the control information indicating whether the data area transmits data assigned to the UE and to be eventually decoded by the UE, and
wherein the first resource elements are allocated dynamically using an RRC message including an indication of the first resource elements,
receiving, by the UE, the RRC message including the indication of the first resource elements used for transmitting the control information,
searching, by the UE, the control area by decoding the first resource elements which are indicated in the RRC message, and
decoding, by the UE, the second resource elements allocated to data area.

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