Semi-persistent scheduled resource release procedure in a mobile communication network

Patent metadata

Field	Value
Publication number	US-9380600-B2
Application number	US-201514791569-A
Country	US
Kind code	B2
Filing date	Jul 6, 2015
Priority date	Sep 17, 2008
Publication date	Jun 28, 2016
Grant date	Jun 28, 2016

Abstract

A semi-persistent resource scheduling (SPS) allocation of a user equipment is deactivated in an LTE-based mobile communication system without requiring changes to the Physical layer-to-MAC layer interface and/or changes to PDCCH formats agreed by the 3GPP. A combination of NDI value and MCS index is defined that commands release of SPS resources. An alternative solution proposed defines a special transport block size that when signaled in a PDCCH commands release of SPS resources.

First claim

The invention claimed is:

1. A method for releasing a semi-persistent scheduled (SPS) resource allocation in a mobile communication system, wherein a user equipment performs the steps of:
receiving control signaling via a physical downlink control channel (PDCCH), and
releasing the semi-persistent scheduled resource allocation when a set of conditions is met,
wherein the set of conditions includes a New Data Indicator value of 0 and a modulation and coding scheme index indicating no transport block size information.

2. The method according to claim 1 , wherein the control signalling conveys control information for scheduling of a Physical Uplink Shared Channel (PUSCH), and wherein the set of conditions further includes a transmit power control (TPC) field being a defined TPC value.

3. The method according to claim 2 , wherein the defined TPC value is ‘00’.

4. The method according to claim 1 , wherein the control signalling conveys control information for scheduling of a Physical Uplink Shared Channel (PUSCH), and wherein the defined set of conditions further includes a cyclic shift demodulation reference signal (DM RS) field being a defined cyclic shift DM RS value.

5. The method according to claim 4 , wherein the defined cyclic shift DM RS value is ‘000’.

6. The method according to claim 1 , wherein the control signalling conveys control information for scheduling of a Physical Downlink Shared Channel (PDSCH), and wherein the set of conditions further includes a hybrid automatic repeat request (HARQ) process number field being a defined HARQ process number value.

7. The method according to claim 6 , wherein the defined HARQ process number value is ‘000’.

8. The method according to claim 1 , wherein the control signalling conveys control information for scheduling of a Physical Downlink Shared Channel (PDSCH), and wherein the set of conditions further includes a Redundancy Version (RV) field being a defined RV value.

9. The method according to claim 8 , wherein the defined RV value is ‘00’.

10. A user equipment for a mobile communication system, comprising:
a receiver configured to receive control signaling via a downlink control channel, and
processing circuitry configured to release a semi-persistent scheduled (SPS) resource allocation when a set of conditions is met,
wherein the set of conditions includes a New Data Indicator value of 0 and a modulation and coding scheme index indicating no transport block size information.

11. The user equipment according to claim 10 , wherein the control signalling conveys control information for scheduling of a Physical Uplink Shared Channel (PUSCH), and wherein the set of conditions further includes a transmit power control (TPC) field being a defined TPC value.

12. The user equipment according to claim 11 , wherein the defined TPC value is ‘00’.

13. The user equipment according to claim 10 , wherein the control signalling conveys control information for scheduling of a Physical Uplink Shared Channel (PUSCH), and wherein the set of conditions further includes a cyclic shift demodulation reference signal (DM RS) field being a defined cyclic shift DM RS value.

14. The user equipment according to claim 13 , wherein the defined cyclic shift DM RS value is ‘000’.

15. The user equipment according to claim 10 , wherein the control signalling conveys control information for scheduling of a Physical Downlink Shared Channel (PDSCH), and wherein the set of conditions further includes a hybrid automatic repeat request (HARQ) process number field being a defined HARQ process number value.

16. The user equipment according to claim 15 , wherein the defined HARQ process number value is ‘000’.

17. The user equipment according to claim 10 , wherein the control signalling conveys control information for scheduling of a Physical Downlink Shared Channel (PDSCH), and wherein the set of conditions further includes a Redundancy Version (RV) field being a defined RV value.

18. The user equipment according to claim 17 , wherein the defined RV value is ‘00’.

Assignees

• Optis Wireless Technology Llc

Inventors

• Lohr Joachim
• Golitschek Edler Von Elbwart Alexander
• Feuersanger Martin
• Wengerter Christian

Classifications

• H04L1/1812 Primary

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title

• H04L27/2601

  Multicarrier modulation systems · CPC title

• H04L1/1607

  Details of the supervisory signal · CPC title

• H04W72/23 Primary

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

• H04W72/1289 Primary

  Electricity · mapped topic