Techniques and configurations associated with machine type communication in enhanced coverage mode

• US 10,142,064 B2
• Filed: 09/08/2014
• Issued: 11/27/2018
• Est. Priority Date: 09/17/2013
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel IP Corporation (Intel Corporation)
• Inventors: Xiong, Gang, Han, Seunghee, Fwu, Jong-Kae
• Primary Examiner(s): Wang, Yaotang
• Application Number:
  US14/479,825
• Publication Number:
  US 20150078224A1
• Time in Patent Office: 1,541 Days
• Field of Search: None
• CPC Class Codes: H04B 1/50 using different frequencies for the two directions of communication
• CPC Class Codes: H04L 1/1858 Transmission or retransmission of more than one copy of acknowledgement message
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/189 Transmission or retransmission of more than one copy of a message
• CPC Class Codes: H04L 1/1896 ARQ related signaling
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Embodiments of the present disclosure describe systems and methods for enhanced coverage machine type communication (MTC). Various embodiments may include systems and methods for scheduling a starting subframe, timing sequence, or resource for various transmissions with repetition to achieve a coverage extension target for MTC. Other embodiments may be described and/or claimed.

Claims

1. A user equipment (UE) comprising:

transceiver circuitry to;

transmit, to an evolved node B (eNB), data in a first bundle of repeated Physical Uplink Shared Channel (PUSCH) transmissions; and

receive, from the eNB, a Hybrid Automatic Repeat reQuest (HARQ) negative-acknowledgement (NACK) in a Physical Downlink Control Channel (PDCCH) transmission, wherein the HARQ NACK from the eNB to the UE in response to the data in the first bundle of repeated PUSCH transmissions is received multiple times at a predefined or configured level of repetition across a plurality of subframes of the PDCCH transmission; and

logic circuitry coupled with the transceiver circuitry, the logic circuitry to determine an uplink starting subframe, based on the predefined or configured level of repetition, at which to begin retransmission of the data in a second PUSCH transmission in response to the HARQ NACK, and further to determine a downlink starting subframe at which to begin receipt of the PDCCH transmission of HARQ NACK for multiple times, based on a last subframe of the first bundle of repeated PUSCH transmissions.

2. The UE of claim 1, wherein the downlink starting subframe is:

four subframes after the last subframe of the first bundle of repeated PUSCH transmission for frequency division duplex (FDD);

or

k1 subframes after the last subframe of the first PUSCH transmission for time division duplex (TDD), wherein k1 is selected in conjunction with a TDD uplink/downlink (UL/DL) configuration and a subframe index n in accordance with the following table;

3. The UE of claim 1, wherein the uplink starting subframe is:

four subframes after the last subframe of the PDCCH transmission for frequency division duplex (FDD);

or

k2 subframes after the last subframe of a downlink transmission for time division duplex (TDD), wherein k2 is selected in conjunction with a TDD uplink/downlink (UL/DL) configuration and a subframe number n in accordance with the following table;

4. The UE of claim 1, wherein the transceiver circuitry is further to receive a Physical HARQ Indicator Channel (PHICH) transmission of HARQ NACK in addition to the Physical Downlink Control Channel (PDCCH) transmission of HARQ NACK, and the logic circuitry is to determine the uplink starting subframe of the second PUSCH transmission based on a last subframe of the PHICH transmission and the PDCCH transmission.

5. The UE of claim 4, wherein the uplink starting subframe is four subframes after the last subframe of a downlink transmission for frequency division duplex (FDD).

6. The UE of claim 4, wherein the uplink starting subframe is k2 subframes after the last subframe of the downlink transmission for time division duplex (TDD), wherein k2 is selected in conjunction with a TDD uplink/downlink (UL/DL) configuration and a DL subframe number n in accordance with the following table:

7. The UE of claim 1, wherein the UE is a machine type communication (MTC) UE to be operated in an enhanced coverage mode, and wherein the predefined or configured level of repetition is based on an enhanced coverage requirement associated with a downlink transmission.

8. The UE of claim 7, wherein the predefined or configured level of repetition is further based on an enhanced coverage requirement associated with the MTC UE.