User apparatus, mobile communication system, and signaling value application method

• US 9,877,289 B2
• Filed: 11/04/2015
• Issued: 01/23/2018
• Est. Priority Date: 11/07/2014
• Status: Active Grant

• Current Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Original Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Inventors: Takahashi, Hideaki, Umeda, Hiromasa
• Primary Examiner(s): REGO, DOMINIC E
• Application Number:
  US15/324,020
• Publication Number:
  US 20170208555A1
• Time in Patent Office: 811 Days
• CPC Class Codes: H04W 36/04 Reselecting a cell layer in multi-layered cells
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/226 using past references to control power, e.g. look-up-table
• CPC Class Codes: H04W 52/28 using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
• CPC Class Codes: H04W 52/281 taking into account user or data type priority
• CPC Class Codes: H04W 52/36 with a discrete range or set of values, e.g. step size, ramping or offsets
• CPC Class Codes: H04W 52/367 Power values between minimum and maximum limits, e.g. dynamic range
• CPC Class Codes: H04W 52/54 Signalisation aspects of the TPC commands, e.g. frame structure
• CPC Class Codes: H04W 72/56 based on priority criteria

Abstract

A user apparatus in a mobile communication system including a base station and the user apparatus, including: reception means configured to receive a plurality of prioritized signaling values corresponding to a band that the user apparatus uses from the base station; selection means configured to select a signaling value of the highest priority from among signaling values that the user apparatus can apply in the plurality of signaling values; and control means configured to perform control of transmission power by applying the signaling value selected by the selection means.

Claims

1. A user apparatus in a mobile communication system including a base station and the user apparatus, comprising:

a reception unit configured to receive a plurality of prioritized signaling values corresponding to a band that the user apparatus uses from the base station;

a selection unit configured to select a signaling value of the highest priority from among signaling values that the user apparatus can apply in the plurality of signaling values; and

a control unit configured to perform control of transmission power by applying the signaling value selected by the selection unit.

2. The user apparatus as claimed in claim 1, wherein the plurality of signaling values include a value of a predetermined information element in a predetermined system information block and include one or a plurality of values in a predetermined list in the predetermined system information block, and the value of the predetermined information element is a signaling value of the lowest priority.

3. The user apparatus as claimed in claim 2, wherein the plurality of signaling values include a value of a predetermined information element in a predetermined system information block and include one or a plurality of values in a predetermined list in the predetermined system information block, and a storing order of values in the predetermined list corresponds to an order of priority of signaling values.

4. The user apparatus as claimed in claim 2, wherein the signaling value is a network signaling value corresponding to a transmission condition including availability of application of A-MPR.

5. The user apparatus as claimed in claim 1, wherein the plurality of signaling values include a value of a predetermined information element in a predetermined system information block and include one or a plurality of values in a predetermined list in the predetermined system information block, and a storing order of values in the predetermined list corresponds to an order of priority of signaling values.

6. The user apparatus as claimed in claim 5, wherein the signaling value is a network signaling value corresponding to a transmission condition including availability of application of A-MPR.

7. The user apparatus as claimed in claim 1, wherein band information indicating a band that the user apparatus uses is stored redundantly in a first list of a first system information bock, and

wherein the plurality of signaling values are stored in positions, of a second list of a second system information block, corresponding to storing positions of the band information in the first list, and the selection unit obtains the plurality of signaling values from the positions of the second list.

8. The user apparatus as claimed in claim 7, wherein a storing order of values in the second list corresponds to an order of priority of signaling values.

9. The user apparatus as claimed in claim 8, wherein the signaling value is a network signaling value corresponding to a transmission condition including availability of application of A-MPR.

10. The user apparatus as claimed in claim 7, wherein the signaling value is a network signaling value corresponding to a transmission condition including availability of application of A-MPR.

11. The user apparatus as claimed in claim 1, wherein the signaling value is a network signaling value corresponding to a transmission condition including availability of application of Additional-Maximum Power Reduction (A-MPR).

12. A user apparatus in a mobile communication system including a base station and the user apparatus, comprising:

a reception unit configured to receive a plurality of prioritized signaling values from the base station;

a selection unit configured to select a signaling value of the highest priority from among signaling values that the user apparatus can apply in the plurality of signaling values; and

a control unit configured to perform cell selection or cell reselection by using maximum transmission power corresponding to the signaling value selected by the selection unit.

13. A mobile communication system including a base station and a user apparatus,

the base station comprising:

a transmission unit configured to transmit a plurality of prioritized signaling values corresponding to a band that the user apparatus uses,

the user apparatus comprising;

a reception unit configured to receive the plurality of signaling values from the base station;

a selection unit configured to select a signaling value of the highest priority from among signaling values that the user apparatus can apply in the plurality of signaling values; and

a control unit configured to perform control of transmission power by applying the signaling value selected by the selection unit.

14. A signaling value application method executed by a user apparatus in a mobile communication system including a base station and the user apparatus, comprising:

a reception step of receiving a plurality of prioritized signaling values corresponding to a band that the user apparatus uses from the base station;

a selection step of selecting a signaling value of the highest priority from among signaling values that the user apparatus can apply in the plurality of signaling values; and

a control step of performing control of transmission power by applying the signaling value selected by the selection step.

15. A signaling value application method executed by a mobile communication system including a base station and a user apparatus, comprising:

a transmission step in which the base station transmits a plurality of prioritized signaling values corresponding to a band that the user apparatus uses;

a reception step in which the user apparatus receives the plurality of signaling values from the base station;

a selection step in which the user apparatus selects a signaling value of the highest priority from among signaling values that the user apparatus can apply in the plurality of signaling values; and

a control step in which the user apparatus performs control of transmission power by applying the signaling value selected by the selection step.