1. A user equipment (UE) for communication with a base station, the UE comprising:
a first buffer configured to store uncompressed data;
a second buffer configured to store compressed data;
a packet data convergence protocol (PDCP) layer employing a robust header compression (ROHC) scheme to compress the uncompressed data; and
a medium access control (MAC) layer configured to transmit a buffer status report to the base station, the buffer status report comprising information indicating an amount of the uncompressed data stored in the first buffer to be transmitted from the UE and an amount of the compressed data stored in the second buffer to be transmitted from the UE, wherein the uncompressed data comprises at least one PDCP service data unit (SDU).
2. The user equipment (UE) of claim 1, wherein the information indicates a total amount of data to be transmitted such that it indicates a total of both the amount of the uncompressed data and the amount of the compressed data.
3. The user equipment (UE) of claim 1, wherein the compression of the uncompressed data is performed depending on feedback information received from the base station.
4. The user equipment (UE) of claim 1, wherein the MAC layer is further configured to transmit the stored compressed data from the UE to the base station.
5. The user equipment (UE) of claim 1, wherein the compression of the uncompressed data includes compressing headers of packets forming the at least one PDCP SDU.
6. The user equipment (UE) of claim 1, wherein the information is dependent on an estimation of a compression factor applied by the PDCP layer.
7. The user equipment (UE) of claim 1, wherein the MAC layer is further configured to transmit to the base station an additional buffer status report comprising an estimation of a compression factor achieved by employing the ROHC scheme, the additional buffer status report being transmitted at a lower frequency than the buffer status report comprising the information.
8. The user equipment (UE) of claim 1, wherein the buffer status report further indicates an amount of data depending on a size of additional headers added for transmission of data read from the second buffer.
9. The user equipment (UE) of claim 1, wherein the buffer status report is transmitted as part of a medium access control (MAC) procedure or a radio resource control (RRC) procedure.
10. The user equipment (UE) of claim 1, wherein the first buffer is a PDCP buffer.
11. The user equipment (UE) of claim 1, wherein the second buffer is a radio link control (RLC) buffer.
12. A method for communicating with a base station, the method performed by a user equipment (UE) and comprising:
storing uncompressed data in a first buffer;
storing compressed data in a second buffer;
compressing the uncompressed data by a packet data convergence protocol (PDCP) layer employing a robust header compression (ROHC) scheme; and
transmitting a buffer status report from the UE to the base station by a medium access control (MAC) layer, the buffer status report comprising information indicating an amount of the uncompressed data stored in the first buffer to be transmitted from the wi UE and an amount of the compressed data stored in the second buffer to be transmitted from the UE, wherein the uncompressed data comprises at least one PDCP service data unit (SDU).
13. The method of claim 12, wherein the information indicates a total amount of data to be transmitted such that it indicates a total of both the amount of the uncompressed data and the amount of the compressed data.
14. The method of claim 12, wherein the compression of the uncompressed data is performed depending on feedback information received from the base station.
15. The method of claim 12, further comprising:
transmitting the stored compressed data to the base station via the MAC layer.
16. The method of claim 12, wherein the compression of the uncompressed data includes compressing headers of packets forming the at least one PDCP SDU.
17. The method of claim 12, further comprising:
transmitting an additional buffer status report to the base station by the MAC layer, the additional buffer status report comprising an estimation of a compression factor achieved by employing the ROHC scheme, and wherein the transmitting of the additional buffer status report is at a lower frequency than the transmitting of the buffer status report comprising the information.
18. The method of claim 12, wherein the buffer status report further indicates an amount of data depending on a size of additional headers added for transmission of data read from the second buffer.
19. The method of claim 12, wherein the first buffer is a PDCP buffer.
20. The method of claim 12, wherein the second buffer is a radio link control (RLC) buffer.
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. An inspection equipment for a metallic foreign object comprising:
a moving device which moves a sample that is an object to be inspected;
an electrode arranged at a position facing a surface of the sample;
a measurement device which measures an electrostatic capacitance between the sample, which is moved by the moving device, and the electrode; and
a processing part which inspects a metallic foreign object mixed in the sample based on a change in the electrostatic capacitance measured by the measurement device,
wherein the electrode is one of plural electrodes forming a ring, the ring is rotated while facing the surface of the sample with a space therebetween, and a rotating direction of the ring is opposite to a sweep direction of the sample.
2. The inspection equipment according to claim 1, wherein in the processing unit the metallic foreign object is inspected by adding a plurality of electrostatic capacitances measured from each of the plural electrodes.
3. The inspection equipment according to claim 1, wherein in the processing unit existence of a metallic foreign object and a position thereof are inspected.
4. The inspection equipment according to claim 1, wherein the moving device translates so that the one electrode corresponds to a thin film on the surface of the sample.
5. The inspection equipment according to claim 1, wherein the sample moved by the moving device is not in contact with the one electrode.
6. The inspection equipment according to claim 1, further comprising a display device which displays a position of a foreign object.
7. The inspection equipment according to claim 1, wherein in the measurement device a chargingdischarging current corresponding to a change in the electrostatic capacitance between the sample and the one electrode is detected.
8. The inspection equipment according to claim 1, wherein the one electrode comprises a periodic unevenness on a surface facing the sample.
9. The inspection equipment according to claim 2, wherein the plural electrodes are arranged in a form of a toothed wheel and rotate so as to constantly face a thin film.
10. An inspection method for a metallic foreign object, the method comprising the steps of:
moving a sample which is an object to be inspected;
measuring an electrostatic capacitance between the sample and an electrode arranged at a position facing with respect to a surface of the sample, which is moved in the moving step; and
processing to inspect a metallic foreign object mixed in the sample based on a change in the electrostatic capacitance measured in the measuring step,
wherein the electrode is one of plural electrodes forming a ring, the ring is rotated while facing the surface of the sample with a space therebetween, and a rotating direction of the ring is opposite to a sweep direction of the sample.
11. The inspection method according to claim 10, wherein in the processing step the metallic foreign object is inspected by adding a plurality of electrostatic capacitances measured from each of the plural electrodes.
12. The inspection method according to claim 10, wherein in the processing step existence of a metallic foreign object and a position thereof are inspected.
13. The inspection method according to claim 10, wherein in the moving step the one electrode translates so as to correspond to a thin film on the surface of the sample.
14. The inspection method according to claim 10, wherein the sample moved in the moving step is not in contact with the one electrode.
15. The inspection method according to claim 10, further comprising the step of displaying a position of a foreign object.
16. The inspection method according to claim 10, wherein in the measuring step a chargingdischarging current corresponding to a change in the electrostatic capacitance between the sample and the one electrode is detected.
17. The inspection method according to claim 10, wherein the one electrode comprises a periodic unevenness on a surface facing the sample.
18. The inspection method according to claim 11, wherein the plural electrodes are arranged in a form of a toothed wheel and rotate so as to constantly face a thin film.