1. A base station, which accommodates a user terminal that transmits a discovery-use signal used for discovering a communication partner terminal in D2D communication that is direct device-to-device radio communication in a mobile communication system that supports the D2D communication, comprising:
a control unit that controls transmission of power control information for designating transmission power of the discovery-use signal to the user terminal.
2. The base station according to claim 1, wherein the power control information includes information indicating: an absolute value of the transmission power andor an acceptable range of the transmission power.
3. The base station according to claim 1, wherein, when the power control information is transmitted in a broadcast manner, the power control information is set in each cell.
4. The base station according to claim 1, wherein, when the power control information is transmitted in a unicast manner, the power control information is set in each user terminal, each D2D group, or each location.
5. The base station according to claim 1, wherein, when the power control information is transmitted in a unicast manner, the control unit determines the transmission power of the discovery-use signal in the user terminal on the basis:
location or capability of the user terminal andor propagation loss between the base station and the user terminal.
6. The base station according to claim 5, wherein the capability of the user terminal includes capability for discovering a communication partner terminal in the D2D communication, or assignment capability of a radio resource in the D2D communication.
7. The base station according to claim 5, wherein, when handover of the user terminal to another base station is performed, the control unit controls notification of the determined transmission power to the other base station.
8. A user terminal that transmits a discovery-use signal used for discovering a communication partner terminal in D2D communication that is direct device-to-device radio communication in a mobile communication system that supports the D2D communication, comprising:
a control unit that determines transmission power of the discovery-use signal, and controls transmission of inquiry information for inquiring whether to apply the determined transmission power to a base station.
9. The user terminal according to claim 8, wherein the inquiry information includes information indicating the determined transmission power.
10. The user terminal according to claim 8, wherein the control unit determines the transmission power on the basis of: location or capability of the user terminal andor propagation loss between the base station and the user terminal.
11. The user terminal according to claim 10, wherein the capability of the user terminal includes capability for discovering a communication partner terminal in the D2D communication, or assignment capability of a radio resource in the D2D communication.
12. A processor provided in a user terminal that transmits a discovery-use signal used for discovering a communication partner terminal in D2D communication that is direct device-to-device radio communication in a mobile communication system that supports the D2D communication, wherein
the processor performs a process of determining transmission power of the discovery-use signal, and transmitting inquiry information for inquiring whether to apply the determined transmission power to a base station.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1-8. (canceled)
9. A transformant in which one or more nucleotides have been substituted, deleted or inserted in the nucleotide sequence of the DNA carried by the transformant of claim 10 or in the nucleotide sequence of a DNA existing upstream the DNA and participating in transcription and translation, and of which the transaldolase activity is enhanced over that of the transformant not having undergone the substitution, deletion or insertion.
10. A transformant comprising a recombinant DNA obtained by ligating a DNA to a vector said DNA coding for a polypeptide having transaldolase activity and comprising (i) SEQ ID NO:2, (ii) a DNA coding for the amino acid sequence of SEQ ID NO: 1 (iii) a DNA coding for an amino sequence which is at least 60% homologous to SEQ ID NO: 1 and (iv) a DNA hybridizing to any of (i)-(iii) at 62\xb0 C. in the presence of 0.7-1.0 moll NaCl followed by washing at 65\xb0 C. with 0.1-2.0 X SSC, wherein the transformant has an ability to produce an aromatic amino acid or aromatic vitamin.
11. A process for producing an aromatic amino acid or aromatic vitamin, which comprises:
culturing the transformant of claim 10 in a medium to thereby produce and accumulate in the culture the aromatic amino acid or aromatic vitamin, and
recovering the aromatic amino acid or aromatic vitamin from the culture.
12. (canceled)
13. The transformant according to claim 10, wherein the transformant has a reduced ability to produce a substance selected from L-histidine, riboflavin and nucleic acids.
14. A process for producing a substance, which comprises:
culturing the transformant of claim 13 in a medium to thereby produce and accumulate the substance in the culture, and
recovering the substance from the culture.
15-16. (canceled)
17. A process for producing an aromatic amino acid or aromatic vitamin, which comprises:
culturing the transformant of claim 9 in a medium to thereby produce and accumulate in the culture the aromatic amino acid or aromatic vitamin, and
recovering the aromatic amino acid or aromatic vitamin from the culture.
18. The transformant according to claim 9, wherein the transformant has a reduced ability to produce a substance selected from L-histidine, riboflavin and nucleic acids.
19. A process for producing a substance, which comprises:
culturing the transformant of claim 18 in a medium to thereby produce and accumulate the substance in the culture, and
recovering the substance from the culture.