# US 2017/0257264 A1 · Method for configuring physical channel start symbols, base station and user equipment

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- Number: US 2017/0257264 A1
- Document ID: US20170257264A1
- Status: Published application
- Kind: A1
- Application number: 15/329,918
- Filed: 2015-07-27
- Published: 2017-09-07
- Earliest claimed: 2014-07-30
- Assignees: Sharp Kabushiki Kaisha
- Applicants: Sharp Kabushiki Kaisha
- Inventors: Renmao LIU; Xingya SHEN; Qi JIANG
- Web page: https://patentgrep.com/patent/US20170257264A1

## CPC

- H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC]
- H04L 41/0803: Configuration setting
- H04W 28/16: Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 68/02: Arrangements for increasing efficiency of notification or paging channel
- H04W 74/0833: Random access procedures, e.g. with 4-step access
- H04W 74/0838: using contention-free random access [CFRA]
- H04W 76/27: Transitions between radio resource control [RRC] states
- H04W 88/02: Terminal devices
- H04W 88/08: Access point devices
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

The present disclosure provides a base station. The base station comprises: a transmitting unit configured to transmit a Machine Type Communication (MTC) Physical Downlink Control Channel (M-PDCCH) and Physical Downlink Shared Channels (PDSCHs). A start Orthogonal Frequency Division Multiplexing (OFDM) symbol of a PDSCH carrying First System Information Broadcast (SIB1) is preconfigured. Respective start OFDM symbols of the M-PDCCH and other PDSCHs are configured via the SIB1. The present disclosure also provides a User Equipment (UE) and associated methods.

## Claims

### Claim at position 1

-40. (canceled)

### Claim 41

A base station, comprising:
a transmitting unit configured to transmit a Machine Type Communication (MTC) Physical Downlink Control Channel (M-PDCCH) and Physical Downlink Shared Channels (PDSCHs),
wherein a start Orthogonal Frequency Division Multiplexing (OFDM) symbol of a PDSCH carrying First System Information Broadcast (SIB1) is preconfigured, and
respective start OFDM symbols of the M-PDCCH and other PDSCHs are configured via the SIB1.

### Claim 42 (depends on 41)

The base station of claim 41, wherein
the start OFDM symbol of a PDSCH carrying SIB is “1SIBStart”,
the start OFDM symbol of a PDSCH carrying paging information is “1PagingStart”,
the start OFDM symbol of a PDSCH carrying a random access response is “1Msg2Start”,
the start OFDM symbol of a PDSCH carrying user data is “1DataStart”, and
the start OFDM symbol of the M-PDCCH is “1MPDCCHStart”.

### Claim 43 (depends on 41)

The base station of claim 41, wherein
1SIBStart of the PDSCH is preconfigured or configured by a Physical Broadcast Channel (PBCH) transmitting processing unit via an MIB, and
1PagingStart, 1Msg2Start and/or 1DataStart and/or 1MPDCCHStart are configured via the SIB1 or SIB2.

### Claim 44 (depends on 41)

The base station of claim 41, wherein respective values of 1SIBStart, 1PagingStart, 1Msg2Start, 1DataStart and 1MPDCCHStart are all the same, partly the same, or different from each other.

### Claim 45

A User Equipment (UE), comprising:
a receiving unit configured to receive a Machine Type Communication (MTC) Physical Downlink Control Channel (M-PDCCH) and Physical Downlink Shared Channels (PDSCHs),
wherein a start Orthogonal Frequency Division Multiplexing (OFDM) symbol of a PDSCH carrying First System Information Broadcast (SIB1) is preconfigured, and
respective start OFDM symbols of the M-PDCCH and other PDSCHs are obtained via the SIB1.

### Claim 46 (depends on 45)

The UE of claim 45, wherein
the start OFDM symbol of a PDSCH carrying SIB is “1SIBStart”,
the start OFDM symbol of a PDSCH carrying paging information is “1PagingStart”,
the start OFDM symbol of a PDSCH carrying a random access response is “1Msg2Start”,
the start OFDM symbol of a PDSCH carrying user data is “1DataStart”, and
the start OFDM symbol of the M-PDCCH is “1MPDCCHStart”.

### Claim 47 (depends on 45)

The UE of claim 45, wherein
1SIBStart of the PDSCH is obtained by means of preconfiguration or by a Physical Broadcast Channel (PBCH) receiving processing unit via an MIB, and
1PagingStart, 1Msg2Start and/or 1DataStart and/or 1MPDCCHStart are obtained via the SIB1 or SIB2.

### Claim 48 (depends on 45)

The UE of claim 45, wherein respective values of 1SIBStart, 1PagingStart, 1Msg2Start, 1DataStart and 1MPDCCHStart are all the same, partly the same, or different from each other.

### Claim 49

A method performed by a base station, comprising:
preconfiguring a start Orthogonal Frequency Division Multiplexing (OFDM) symbol of a Physical Downlink Shared Channel (PDSCH) carrying First System Information Broadcast (SIB1); and
configuring respective start OFDM symbols of a Machine Type Communication (MTC) Physical Downlink Control Channel (M-PDCCH) and other PDSCHs via the SIB1.

### Claim 50 (depends on 49)

The method of claim 49, wherein
the start OFDM symbol of a PDSCH carrying SIB is “1SIBStart”,
the start OFDM symbol of a PDSCH carrying paging information is “1PagingStart”,
the start OFDM symbol of a PDSCH carrying a random access response is “1Msg2Start”,
the start OFDM symbol of a PDSCH carrying user data is “1DataStart”, and
the start OFDM symbol of the M-PDCCH is “1MPDCCHStart”.

### Claim 51 (depends on 49)

The method of claim 49, wherein
1SIBStart of the PDSCH is preconfigured or configured via an MIB, and
1PagingStart, 1Msg2Start and/or 1DataStart and/or 1MPDCCHStart are configured via the SIB1 or SIB2.

### Claim 52 (depends on 49)

The method of claim 49, wherein respective values of 1SIBStart, 1PagingStart, 1Msg2Start, 1DataStart and 1MPDCCHStart all the same, partly the same, or different from each other.

### Claim 53

A method performed by a User Equipment (UE), comprising:
preconfiguring a start Orthogonal Frequency Division Multiplexing (OFDM) symbol of a Physical Downlink Shared Channel (PDSCH) carrying First System Information Broadcast (SIB1); and
obtaining respective start OFDM symbols of a Machine Type Communication (MTC) Physical Downlink Control Channel (M-PDCCH) and other PDSCHs via the SIB1.

### Claim 54 (depends on 53)

The method of claim 53, wherein
the start OFDM symbol of a PDSCH carrying SIB is “1SIBStart”,
the start OFDM symbol of a PDSCH carrying paging information is “1PagingStart”,
the start OFDM symbol of a PDSCH carrying a random access response is “1Msg2Start”,
the start OFDM symbol of a PDSCH carrying user data is “1DataStart”, and
the start OFDM symbol of the M-PDCCH is “1MPDCCHStart”.

### Claim 55 (depends on 53)

The method of claim 53, wherein
1SIBStart of the PDSCH is obtained by means of preconfiguration or via an MIB, and
1PagingStart, 1Msg2Start and/or 1DataStart and/or 1MPDCCHStart are obtained via the SIB1 or SIB2.

### Claim 56 (depends on 53)

The method of claim 53, wherein respective values of 1SIBStart1, 1SIBStart2, 1SIBStart, 1PagingStart, 1Msg2Start, 1DataStart and 1MPDCCHStart are all the same, partly the same, or different from each other.