User equipments, base stations and methods

Patent metadata

Field	Value
Publication number	US-10945251-B2
Application number	US-201816190626-A
Country	US
Kind code	B2
Filing date	Nov 14, 2018
Priority date	Nov 15, 2017
Publication date	Mar 9, 2021
Grant date	Mar 9, 2021

Abstract

A user equipment (UE) is described. The UE includes a higher layer processor configured to acquire a first radio resource control (RRC) configuration including first information for indicating a control resource set (CORESET) duration, and to acquire second RRC configuration including second information for indicating physical downlink control channel (PDCCH) monitoring symbols. The UE also includes receiving circuitry configured to monitor a PDCCH, based on the first information and the second information. The CORESET duration is set to a value larger than 1. The second information is bitmap information. Each bit of the bitmap information corresponds to a respective OFDM symbol in a slot. The bit of which value is set to 1 indicates a start of a PDCCH monitoring occasion. The bitmap information is set such that any two adjacent PDCCH monitoring occasions do not overlap with each other.

First claim

The invention claimed is:

1. A user equipment (UE) comprising:
a higher layer processor configured to acquire a first radio resource control (RRC) configuration including first information for indicating a control resource set (CORESET) duration, and to acquire a second RRC configuration including second information for indicating physical downlink control channel (PDCCH) monitoring symbols, to acquire third information for indicating PDCCH monitoring periodicity k, and to acquire fourth information for indicating PDCCH monitoring offset o; and
receiving circuitry configured to monitor a PDCCH, based on the first information, the second information, the third information, and the fourth information;
wherein 0≤o<k, the CORESET duration is set to a value larger than 1,
the second information expresses a PDCCH monitoring pattern within a slot and is bitmap information that includes 14 bits,
each bit of the bitmap information corresponds to a respective OFDM symbol #0 to #13 in the slot,
the bit of which value is set to 1 indicates a start of a PDCCH monitoring occasion,
the bitmap information is set such that two adjacent PDCCH monitoring occasions in the slot do not overlap with each other, and
the two adjacent PDCCH monitoring occasions in the slot are based on a single CORESET duration parameter and a single resource block frequency-domain parameter.

2. A base station comprising:
a higher layer processor configured to send a first radio resource control (RRC) configuration including first information for indicating a control resource set (CORESET) duration, and to send a second RRC configuration including second information for indicating physical downlink control channel (PDCCH) monitoring symbols, to send third information for indicating PDCCH monitoring periodicity k, and to send fourth information for indicating PDCCH monitoring offset o; and
transmitting circuitry configured to transmit a PDCCH, based on the first information, the second information, the third information, and the fourth information;
wherein 0≤o<k, the CORESET duration is set to a value larger than 1,
the second information expresses a PDCCH monitoring pattern within a slot and is bitmap information that includes 14 bits,
each bit of the bitmap information corresponds to a respective OFDM symbol #0 to #13 in the slot,
the bit of which value is set to 1 indicates a start of a PDCCH monitoring occasion,
the bitmap information is set such that two adjacent PDCCH monitoring occasions in the slot do not overlap with each other, and
the two adjacent PDCCH monitoring occasions in the slot are based on a single CORESET duration parameter and a single resource block frequency-domain parameter.

3. A method for a user equipment (UE), the method comprising:
acquiring a first radio resource control (RRC) configuration including first information for indicating a control resource set (CORESET) duration;
acquiring a second RRC configuration including second information for indicating physical downlink control channel (PDCCH) monitoring symbols;
acquiring third information for indicating PDCCH monitoring periodicity k;
acquiring fourth information for indicating PDCCH monitoring offset o; and
monitoring a PDCCH, based on the first information, the second information, the third information, and the fourth information;
wherein 0≤o<k, the CORESET duration is set to a value larger than 1,
the second information expresses a PDCCH monitoring pattern within a slot and is bitmap information that includes 14 bits,
each bit of the bitmap information corresponds to a respective OFDM symbol #0 to #13 in the slot,
the bit of which value is set to 1 indicates a start of a PDCCH monitoring occasion,
the bitmap information is set such that two adjacent PDCCH monitoring occasions in the slot do not overlap with each other, and
the two adjacent PDCCH monitoring occasions in the slot are based on a single CORESET duration parameter and a single resource block frequency-domain parameter.

4. A method for a base station, the method comprising:
sending a first radio resource control (RRC) configuration including first information for indicating a control resource set (CORESET) duration;
sending a second RRC configuration including second information for indicating physical downlink control channel (PDCCH) monitoring symbols;
sending third information for indicating PDCCH monitoring periodicity k;
sending fourth information for indicating PDCCH monitoring offset o; and
transmitting a PDCCH, based on the first information, the second information, the third information, and the fourth information;
wherein 0≤o<k, the CORESET duration is set to a value larger than 1,
the second information expresses a PDCCH monitoring pattern within a slot and is bitmap information that includes 14 bits,
each bit of the bitmap information corresponds to a respective OFDM symbol #0 to #13 in the slot,
the bit of which value is set to 1 indicates a start of a PDCCH monitoring occasion,
the bitmap information is set such that two adjacent PDCCH monitoring occasions in the slot do not overlap with each other, and
the two adjacent PDCCH monitoring occasions in the slot are based on a single CORESET duration parameter and a single resource block frequency-domain parameter.

Assignees

• Sharp Kk
• Fg innovation co ltd

Inventors

• Nogami Toshizo
• Yin Zhanping
• Sheng Jia

Classifications

• H04W72/542

  using measured or perceived quality · CPC title

• H04W72/23 Primary

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

• H04L5/0055

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04L5/0051

  of dedicated pilots, i.e. pilots destined for a single user or terminal · 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