TERMINAL DEVICE, BASE STATION DEVICE, RADIO COMMUNICATION METHOD, AND INTEGRATED CIRCUIT

• US 20170359836A1
• Filed: 12/28/2015
• Published: 12/14/2017
• Est. Priority Date: 01/08/2015
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: KATO, YASUYUKI, UEMURA, KATSUNARI, YAMADA, SHOHEI, TSUBOI, HIDEKAZU
• Granted Patent: US 10,764,922 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 74/006 in the downlink, i.e. towards the terminal
• CPC Class Codes: H04W 74/08 Non-scheduled access, e.g. ALOHA hybrid access H04W74/02
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access
• CPC Class Codes: H04W 92/10 between terminal device and access point, i.e. wireless air interface

Abstract

A terminal device configured to communicate with a base station device receives random access common information including information on a random access response reception and information on a contention resolution message reception for each repetition level from the base station device, selects a random access preamble corresponding to a repetition level using the random access common information, and selects a contention resolution timer value corresponding to the repetition level selected from the random access common information.

Claims

1. A terminal device configured to communicate with a base station device, comprising:

a processor; and

a memory,

wherein the memory stores instructions that causes the processor to;

receive random access common information including information on a random access response reception and information on a contention resolution message reception for each repetition level from the base station device;

and

select, a contention resolution timer value corresponding to a repetition level selected, from the random access common information.

2. The terminal device according to claim 1, wherein

the random access common information is acquired from system information of a cell corresponding to a random access procedure for each repetition level.

3. A base station device configured to communicate with a terminal device comprising:

a processor; and

a memory,

wherein the memory stores instructions that causes the processor to;

generate, random access common information including information on a random access response reception and information on a contention resolution message reception for each repetition level; and

transmit the random access common information to the terminal device.

4. The base station device according to claim 3, wherein

the random access common information is included in system information for the terminal device corresponding to a random access procedure for each repetition level and transmitted.

5. A communication method of a terminal device configured to communicate with a base station device, comprising the steps of:

receiving random access common information including information on a random access response reception and information on a contention resolution message reception for each repetition level from the base station device;

and

selecting, a contention resolution timer value corresponding to a repetition level selected, from the random access common information.

6. A communication method of a base station device configured to communicate with a terminal device, comprising the steps of:

generating, random access common information including information on a random access response reception and information on a contention resolution message reception for each repetition level; and

transmitting the random access common information to the terminal device.

7. An integrated circuit applied to a terminal device configured to communicate with a base station device, comprising:

a unit configured to receive random access common information including information on a random access response reception and information on a contention resolution message reception for each repetition level from the base station device;

and

a unit configured to select, a contention resolution timer value corresponding to a repetition level selected, from the random access common information.

8. An integrated circuit applied to a base station device configured to communicate with a terminal device, comprising:

a unit configured to generate, random access common information including information on a random-access response reception and information on a contention resolution message reception for each repetition level; and

a unit configured to transmit the random access common information to the terminal device.