What is claimed is:
1. A manufacturing method of a fiber reinforced composite member comprising steps of: forming a fabric on the surface of a mandrel; infiltrating the formed fabric with matrix; and leaving a part of said mandrel which is integral with the fabric and removing the mandrel.
2. The manufacturing method of a fiber reinforced composite member according to claim 1, comprising steps of using the left part of said mandrel which is integral with the fabric as a reference surface to perform machining.
3. The manufacturing method of a fiber reinforced composite member according to claim 1 or 2 wherein said fabric is formed to be longer than a product dimension.
4. A manufacturing apparatus of fiber reinforced composite member for forming a fabric on the surface of a mandrel, and infiltrating the formed fabric with matrix,
wherein said mandrel is formed to be longer than a product dimension of a fiber reinforced composite member.
5. The manufacturing apparatus of fiber reinforced composite member according to claim 4 wherein a portion of said mandrel protruding from the product dimension of the fiber reinforced composite member has a portion whose diameter increases toward an end, and the diameter increasing portion can be separated into an annular portion having a diameter larger than an outer diameter of a product dimension end portion, and a remaining portion.
6. The manufacturing apparatus of fiber reinforced composite member according to claim 4 or 5 wherein a groove or a protrusion interlocking with said fabric is formed on the surface of said annular portion in such a manner that when a part of the mandrel forming a product portion is removed, the mandrel left as integral with the fabric fails to move on the fabric.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1-18. (canceled)
19. A method in a radio base station for providing radio coverage to a user equipment, which radio base station comprises at least two radio antenna ports, including a first antenna port associated with a first physical antenna, which first antenna port is arranged to provide a radio coverage over a first area, and a second antenna port associated with a second physical antenna and which second antenna port is arranged to provide a radio coverage over a second area, the method comprising:
broadcasting a signal with system information over the first area via the first antenna port thereby enabling the radio base station to connect to the user equipment;
determining that a user equipment in the first area has data to receive or transmit;
obtaining information related to a position of the user equipment in the first area; and
setting a characteristic of the second physical antenna based on the obtained information, thereby providing radio coverage to the user equipment via the second antenna port.
20. The method of claim 19, wherein the setting of the characteristic comprises setting at least one of:
a lobe width of a signal;
a direction of the radio coverage;
a tilting of the second physical antenna; and
a setting of any antenna element of the second physical antenna.
21. The method of claim 19, wherein the radio base station comprises a multi-sector radio base station, wherein a radio coverage of each sector of said multi-sector radio base station is provided by separate antenna ports, wherein each of which respective antenna port is power fed with a respective separate power amplifier.
22. The method of claim 19, wherein the radio base station comprises a multi-sector radio base station, wherein a radio coverage of each sector of said multi-sector radio base station is provided by the first antenna port, which is power fed with a single power amplifier, which first antenna port is associated with separate antenna elements for the different sectors.
23. The method of claim 22, wherein the second antenna port is associated with separate antenna elements for the different sectors and the second antenna port is shared over time between the sectors so that the setting of the characteristic of the second physical antenna comprises setting characteristic of separate antenna elements for the different sectors alternating in time between the different sectors, providing radio coverage within the different sectors of said multi-sector in an alternating manner.
24. The method of claim 19, wherein a cell-specific reference symbol is mapped to a respective antenna port for transmission.
25. The method of claim 19, wherein the radio base station further comprises a third antenna port associated with a third physical antenna and a fourth antenna port associated with a fourth physical antenna to provide transmissions up to transmission rank four, wherein the setting of a characteristic further comprises setting a characteristic of the third physical antenna or the fourth physical antenna, or both, for providing multilayer radio coverage to the user equipment.
26. The method of claim 19, wherein the determining comprises determining when the radio base station comprises data in a buffer to be transmitted to the user equipment or when the radio base station comprises indications that the user equipment has data to transmit or data to receive.
27. The method of claim 19, wherein the obtaining comprises one or more of receiving information from the user equipment, performing measurement on an uplink signal and calculating a position of the user equipment, or retrieving the information related to the position of the user equipment from the radio base station.
28. A radio base station for providing radio coverage to a user equipment, the radio base station comprising:
at least two radio antenna ports, including a first antenna port associated with a first physical antenna, which first antenna port is arranged to provide a radio coverage over a first area, and a second antenna port associated with a second physical antenna and which second antenna port is arranged to provide a radio coverage over a second area;
a broadcasting circuit configured to broadcast a signal with system information over the first area via the first antenna port enabling the radio base station to connect to the user equipment;
a determining circuit configured to determine that a user equipment in the first area has data to receive or transmit;
an obtaining circuit configured to obtain information related to a position of the user equipment in the first area; and
a setting circuit configured to set a characteristic of the second physical antenna based on the obtained information to provide the radio coverage to the user equipment via the second antenna port.
29. The radio base station of claim 28, wherein the setting circuit is configured to set at least one of:
a lobe width of a signal;
a direction of the radio coverage;
a tilting of the second physical antenna; and
a setting of any antenna element of the second physical antenna; lobe width of a signal, direction of the radio coverage, tilting of the second physical antenna, andor set any antenna element of the second physical antenna.
30. The radio base station of claim 28, wherein the radio base station comprises a multi-sector radio base station, comprising a number of separate antenna providing radio coverage of each sector of the multi-sector radio base station and wherein each antenna port is configured to be power fed by a separate power amplifier comprised in the radio base station.
31. The radio base station of claim 28, wherein the radio base station comprises a multi-sector radio base station, and wherein the first antenna port is configured to provide a radio coverage of each sector of said multi-sector radio base station and further configured to be power fed with a single power amplifier comprised in the radio base station, which first antenna port is configured to be associated with separate antenna elements for the different sectors.
32. The radio base station of claim 31, wherein the second antenna port is configured to be associated with separate antenna elements for the different sectors and the second antenna port is configured to be shared over time between the sectors so that the setting circuit is configured to set the characteristic of the separate antenna elements for the different sectors alternating in time between the different sectors, thereby providing radio coverage within the different sectors in an alternating manner.
33. The radio base station of claim 28, wherein radio base station is configured to map a cell-specific reference symbol to a respective antenna port for transmission.
34. The radio base station of claim 28, wherein the radio base station further comprises a third antenna port associated with a third physical antenna and a fourth antenna port associated with a fourth physical antenna, to provide transmissions up to transmission rank four, wherein the setting circuit is further configured to set a characteristic of the third physical antenna or the fourth physical antenna, or both, thereby providing multilayer radio coverage to the user equipment.
35. The radio base station of claim 28, wherein the determining circuit is further configured to determine when the radio base station comprises data in a buffer to be transmitted to the user equipment or when the radio base station comprises indications that the user equipment has data to transmit or data to receive.
36. The radio base station of claim 28, wherein the obtaining circuit is further configured to receive the information related to the position of the user equipment from the user equipment, to perform measurement on an uplink signal and calculating a position of the user equipment, or to retrieve the information related to the position of the user equipment from the radio base station.