User equipments, base stations and methods

Patent metadata

Field	Value
Publication number	US-2018368188-A1
Application number	US-201816008483-A
Country	US
Kind code	A1
Filing date	Jun 14, 2018
Priority date	Jun 15, 2017
Publication date	Dec 20, 2018
Grant date	—

Abstract

A user equipment (UE) is described. Receiving circuitry is configured to receive downlink control information which is used for scheduling of a physical downlink shared channel and to receive, on the physical downlink shared channel, a random access response including a random access response grant. Transmitting circuitry is configured to perform, based on the random access response grant, a transmission on a physical uplink shared channel. In a case that a first value is indicated by using information included in the downlink control information, an index of a physical resource block(s) for the physical uplink shared channel is indicated by using the random access response grant. In a case that a second value is indicated by using the information included in the downlink control information, a plurality of indices of the physical resource block(s) for the physical uplink shared channel is indicated by using the random access response grant.

First claim

What is claimed is:

1 . A user equipment that communicates with a base station apparatus, comprising:
receiving circuitry configured to receive downlink control information which is used for scheduling of a physical downlink shared channel, the receiving circuitry configured to receive, on the physical downlink shared channel, a random access response including a random access response grant; and transmitting circuitry configured to perform, based on the random access response grant, a transmission on a physical uplink shared channel, wherein in a case that a first value is indicated by using information included in the downlink control information, an index of a physical resource block(s) for the physical uplink shared channel is indicated by using the random access response grant, and in a case that a second value is indicated by using the information included in the downlink control information, a plurality of indices of the physical resource block(s) for the physical uplink shared channel is indicated by using the random access response grant.

2 . A base station apparatus that communicates with a user equipment, comprising:
transmitting circuitry configured to transmit downlink control information which is used for scheduling of a physical downlink shared channel, the transmitting circuitry configured to transmit, on the physical downlink shared channel, a random access response including a random access response grant; and receiving circuitry configured to perform, based on the random access response grant, a reception on a physical uplink shared channel, wherein in a case that a first value is indicated by using information included in the downlink control information, an index of a physical resource block(s) for the physical uplink shared channel is indicated by using the random access response grant, and in a case that a second value is indicated by using the information included in the downlink control information, a plurality of indices of the physical resource block(s) for the physical uplink shared channel is indicated by using the random access response grant.

3 . A communication method of a user equipment that communicates with a base station apparatus, the communication method comprising:
receiving downlink control information which is used for scheduling of a physical downlink shared channel, receiving, on the physical downlink shared channel, a random access response including a random access response grant; and performing, based on the random access response grant, a transmission on a physical uplink shared channel, wherein in a case that a first value is indicated by using information included in the downlink control information, an index of a physical resource block(s) for the physical uplink shared channel is indicated by using the random access response grant, and in a case that a second value is indicated by using the information included in the downlink control information, a plurality of indices of the physical resource block(s) for the physical uplink shared channel is indicated by using the random access response grant.

4 . A communication method of a base station apparatus that communicates with a user equipment, the communication method comprising:
transmitting downlink control information which is used for scheduling of a physical downlink shared channel, transmitting, on the physical downlink shared channel, a random access response including a random access response grant; and performing, based on the random access response grant, a reception on a physical uplink shared channel, wherein in a case that a first value is indicated by using information included in the downlink control information, an index of a physical resource block(s) for the physical uplink shared channel is indicated by using the random access response grant, and in a case that a second value is indicated by using the information included in the downlink control information, a plurality of indices of the physical resource block(s) for the physical uplink shared channel is indicated by using the random access response grant.

Assignees

• Sharp Laboratories America Inc

Inventors

• Aiba Tatsushi
• Sheng Jia
• Nogami Toshizo
• Shaheen Kamel M

Classifications

• H04W74/0833 Primary

  Random access procedures, e.g. with 4-step access · CPC title

• H04L5/005

  of common pilots, i.e. pilots destined for multiple users or terminals · CPC title

• H04L5/0051

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

• H04W72/23

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

• H04W72/042

  Electricity · mapped topic