Apparatuses for carrier aggregation of component carriers

• US 10,736,104 B2
• Filed: 11/14/2017
• Issued: 08/04/2020
• Est. Priority Date: 10/22/2008
• 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: Yamada, Shohei, Uemura, Katsunari
• Primary Examiner(s): Ghowrwal, Omar J
• Application Number:
  US15/812,521
• Publication Number:
  US 20180070359A1
• Time in Patent Office: 994 Days
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0026 Division using four or more dimensions
• CPC Class Codes: H04L 5/003 Arrangements for allocating sub-channels of the transmission path
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority
• CPC Class Codes: H04L 5/0087 when data requirements change
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states

Abstract

A communication system that includes a terminal apparatus and a base station apparatus. The terminal apparatus obtains, from the base station apparatus, information regarding addition of a component carrier, whereby the information regarding addition of the component carrier comprises information related to carrier frequency of the component carrier and information related to system bandwidth of the component carrier. The base station apparatus provides, to the terminal apparatus, information regarding addition of a component carrier, whereby the information regarding addition of the component carrier comprises information related to carrier frequency of the component carrier and information related to system bandwidth of the component carrier.

Claims

1. A mobile station apparatus comprising:

a wireless circuit that

communicates with a base station apparatus by carrier aggregation using a plurality of downlink component carriers including a first downlink component carrier and one or more second downlink component carriers;

obtains, from the base station apparatus, information regarding addition of a second downlink component carrier which is used by the carrier aggregation, the information is included in Radio Resource Control (RRC) signaling; and

performs the addition of the second downlink component carrier corresponding to the information to the first downlink component carrier to communicate by the carrier aggregation using the first downlink component carrier and the second downlink component carrier.

2. The mobile station apparatus according to claim 1, wherein the information comprises information related to a carrier frequency of the second downlink component carrier.

3. The mobile station apparatus according to claim 1, wherein the mobile station apparatus configures a lower layer based on the second downlink component carrier to be added.

4. The mobile station apparatus according, to claim 1, wherein the information is received using a dedicated control channel (DCCH) which is a logical channel.

5. A base station apparatus comprising:

a wireless circuit that

communicates with a mobile station apparatus by carrier aggregation using a plurality of downlink component carriers including a first downlink component carrier and one or more second downlink component carriers; and

provides, to the mobile station apparatus, information regarding addition of a second downlink component carrier which is used by the carrier aggregation, the information is included in Radio Resource Control (RRC) signaling, wherein

the addition of the second downlink component carrier corresponding to the information to the first downlink component carrier to communicate by the carrier aggregation using the first downlink component carrier and the second downlink component carrier is performed by the mobile station apparatus.

6. The base station apparatus according to claim 5, wherein the information comprises information related to a carrier frequency of the second downlink component carrier.

7. The base station apparatus according to claim 5, wherein the mobile station apparatus configures a lower layer based on the second downlink component carrier to be added.

8. The base station apparatus according to claim 5, wherein the information is transmitted using a dedicated control channel (DCCH) which is a logical channel.