# US 2018/0026759 A1 · Enhanced physical downlink control channel in machine-type communication

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- Number: US 2018/0026759 A1
- Document ID: US20180026759A1
- Status: Published application
- Kind: A1
- Application number: 15/520,981
- Filed: 2015-11-05
- Published: 2018-01-25
- Earliest claimed: 2014-11-05
- Assignees: Intel IP Corporation
- Applicants: Intel IP Corporation
- Inventors: Yuan Zhu; Gang Xiong; Debdeep Chatterjee; Seunghee Han; Jong-Kae Fwu
- Web page: https://patentgrep.com/patent/US20180026759A1

## CPC

- H04L 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals}
- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC]
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

The present disclosure describes embodiments of apparatuses, systems, and methods for that include and apply an association between one or more first antenna ports that carry Enhanced Physical Downlink Control Channel (EPDCCH) data and one or more second antenna ports that carry Physical Downlink Shared Channel (PDSCH) data in connection with machine type communications.

## Claims

### Claim at position 1

1-23. canceled

### Claim 24

A network node apparatus comprising:
control circuitry to obtain association information that includes an association between one or more first antenna ports that carry Enhanced Physical Downlink Control Channel (EPDCCH) data and one or more second antenna ports that carry Physical Downlink Shared Channel (PDSCH) data; and
transmit circuitry in communication with the control circuitry to:
transmit the association information to a Machine Type Communication (MTC) User Equipment (UE),
transmit, to the MTC UE, EPDCCH data via at least one of the one or more first antenna ports during a first sub-frame, the EPDCCH data to schedule PDSCH data in a second sub-frame that is after the first sub-frame, and
transmit, to the MTC UE, the PDSCH data via at least one of the one or more second antenna port during the second sub-frame.

### Claim 25 (depends on 24)

The apparatus of claim 24, wherein the first and second sub-frames are included within a common physical resource block (PRB) bundle.

### Claim 26 (depends on 24)

The apparatus of claim 24, wherein the transmit circuitry further is to transmit the association information, the EPDCCH data, and the PDSCH data to the MTC UE over a narrow bandwidth portion of a broad bandwidth over which data is transmitted to other UE.

### Claim 27 (depends on 26)

The apparatus of claim 26, wherein the narrow bandwidth portion is 1.4 Mhz or less.

### Claim 28 (depends on 24)

The apparatus of claim 24, wherein the transmit circuitry further is to transmit the association information, the EPDCCH data, and the PDSCH data to plural MTC UEs.

### Claim 29 (depends on 24)

The apparatus of claim 24, wherein the transmit circuitry further is to transmit the association information, the EPDCCH data, and the PDSCH data separately to a first plurality of MTC UEs and a second plurality of MTC UEs.

### Claim 30 (depends on 24)

The apparatus of claim 24, wherein the transmit circuitry further is to transmit the association information to the MTC UE via a Master Information Block (MIB).

### Claim 31 (depends on 24)

The apparatus of claim 24, wherein the transmit circuitry further is to transmit the association information to the MTC UE via System Information Block (SIB).

### Claim 32

One or more computer-readable media having instructions that, when executed, cause a network node to:
obtain association information that includes an association between one or more first antenna ports to be used to transmit Enhanced Physical Downlink Control Channel (EPDCCH) data and one or more second antenna ports to be used to transmit Physical Downlink Shared Channel (PDSCH) data;
transmit the association information to plural Machine Type Communication (MTC) User Equipment (UE),
transmit, to the MTC UE, EPDCCH data via at least one of the one or more first antenna ports during a first sub-frame, the EPDCCH data to schedule PDSCH data in a second sub-frame that is after the first sub-frame, and
transmit, to the MTC UE, the PDSCH data via at least one of the one or more second antenna port during the second sub-frame.

### Claim 33 (depends on 32)

The one or more computer-readable media of claim 32, wherein the first and second sub-frames are included within a common physical resource block (PRB) bundle.

### Claim 34 (depends on 32)

The one or more computer-readable media of claim 32, wherein the instructions, when executed, cause the network node to transmit the EPDCCH in alternation among more than one first antenna ports.

### Claim 35 (depends on 32)

The one or more computer-readable media of claim 32, wherein the instructions, when executed, cause the network node to obtain association information include instructions to obtain the association information in reference to a Radio Network Temporary Identifier for the MTC UEs.

### Claim 36 (depends on 32)

The one or more computer-readable media of claim 32, wherein the instructions, when executed, cause the network node to obtain association information include instructions to obtain the association information in reference to a time factor.

### Claim 37 (depends on 32)

The one or more computer-readable media of claim 32, wherein the association between the one or more first antenna ports and one or more second antenna ports is fixed.

### Claim 38

An apparatus comprising:
control circuitry to store association information that includes an association between one or more first antenna ports that carry Enhanced Physical Downlink Control Channel (EPDCCH) data and one or more second antenna ports that carry Physical Downlink Shared Channel (PDSCH) data; and
transmit circuitry to transmit to a Machine Type Communication (MTC) User Equipment (UE), in accordance with the association information, EPDCCH data via at least one of the one or more first antenna ports during a first sub-frame, the EPDCCH data to schedule PDSCH data in a second sub-frame that is after the first sub-frame, and transmitting, to the MTC UE, the PDSCH data via at least one of the one or more second antenna ports during the second sub-frame.

### Claim 39 (depends on 38)

The apparatus of claim 38, wherein the first and second sub-frames are included within a common physical resource block (PRB) bundle.

### Claim 40 (depends on 38)

The apparatus of claim 38, wherein the transmit circuitry is further to transmit the EPDCCH data and the PDSCH data to the MTC UE over a narrow bandwidth portion of a broad bandwidth over which data is transmitted to other UE.

### Claim 41 (depends on 40)

The apparatus of claim 40, wherein the narrow bandwidth portion is 1.4 Mhz or less.

### Claim 42 (depends on 38)

The apparatus of claim 38, wherein the transmit circuitry is further to transmit the EPDCCH data and the PDSCH data separately to a first plurality of MTC UEs and a second plurality of MTC UEs.

### Claim 43 (depends on 38)

The apparatus of claim 38, wherein the transmit circuitry is further to transmit the EPDCCH data and the PDSCH data to plural MTC UEs.

### Claim 44

One or more computer-readable media having instructions that, when executed, cause a Machine Type Communication (MTC) User Equipment (UE) to:
receive an association between one or more first antenna ports that carry Enhanced Physical Downlink Control Channel (EPDCCH) data and one or more second antenna ports that carry Physical Downlink Shared Channel (PDSCH) data;
receive EPDCCH data via at least one of the one or more first antenna ports during a first sub-frame, the EPDCCH data to schedule PDSCH data in a second sub-frame that is after the first sub-frame, and
infer from the EPDCCH data received via least one of the one or more first antenna ports a channel over which the PDSCH data is to be transmitted via the at least one of the one or more second antenna ports during the second sub-frame.

### Claim 45 (depends on 44)

The one or more computer-readable media of claim 44, wherein the first and second sub-frames are included within a common physical resource block (PRB) bundle.

### Claim 46 (depends on 44)

The one or more computer-readable media of claim 44, wherein the association between the first and second ports is fixed.