1. A method for operating a base station (BS) in a wireless communication system, the method comprising:
transmitting primary reference signals having a first beam width;
transmitting control information regarding an allocation of secondary reference signals; and
transmitting the secondary reference signals having a second beam width,
wherein each of the secondary reference signals is transmitted in a direction within a propagation range of one or more of the primary reference signals, preferred by at least one terminal.
2. The method of claim 1, wherein the control information comprises at least one of:
at least one index of the one or more of the primary reference signals,
at least one combination of at least one index of the one or more of the primary reference signals and at least one index of a corresponding at least one measurement duration,
a total number of the secondary reference signals,
a total number of measurement durations carrying the secondary reference signals,
a total number of the one or more of the primary reference signals, or
an index of the last one of the measurement durations.
3. The method of claim 1, wherein a number of secondary reference signals per frame is determined based on properties of a service.
4. The method of claim 1, wherein a number of secondary reference signals per frame is determined based on a time delay and an overhead.
5. The method of claim 1, wherein the transmitting of the secondary reference signals comprises:
determining a total number of measurement durations carrying the secondary reference signals based on a total number of the one or more of the primary reference signals; and
transmitting the secondary reference signals through the measurement durations.
6. A method for operating a terminal in a wireless communication system, the method comprising:
receiving at least one primary reference signal having a first beam width;
receiving control information regarding an allocation of secondary reference signals; and
receiving the secondary reference signals having a second beam width,
wherein each of the secondary reference signals is transmitted in a direction within a propagation range of one or more of the primary reference signals, preferred by the terminal.
7. The method of claim 6, wherein the control information comprises at least one of:
at least one index of the one or more of the primary reference signals,
at least one combination of at least one index of the one or more of the primary reference signals and at least one index of a corresponding at least one measurement duration,
a total number of the secondary reference signals,
a total number of measurement durations carrying the secondary reference signals,
a total number of the one or more of the primary reference signals, or
an index of the last one of the measurement durations.
8. The method of claim 6, wherein a number of secondary reference signals per frame is determined based on properties of a service.
9. The method of claim 6, wherein a number of secondary reference signals per frame is determined based on a time delay and an overhead.
10. The method of claim 6, wherein the receiving of the secondary reference signals comprises:
identifying at least one measurement duration corresponding to the at least one primary reference signal; and
detecting the at least one of the secondary reference signals during the at least one measurement duration.
11. An apparatus for operating a base station (BS) in a wireless communication system, the apparatus comprising:
a transceiver configured to:
transmit primary reference signals having a first beam width,
transmit control information regarding an allocation of secondary reference signals, and
transmit the secondary reference signals having a second beam width,
wherein each of the secondary reference signals is transmitted in a direction within a propagation range of one or more of the primary reference signals, preferred by at least one terminal.
12. The apparatus of claim 11, wherein the control information comprises at least one of:
at least one index of the one or more of the primary reference signals,
at least one combination of at least one index of the one or more of the primary reference signals and at least one index of a corresponding at least one measurement duration,
a total number of the secondary reference signals,
a total number of measurement durations carrying the secondary reference signals,
a total number of the one or more of the primary reference signals, or
an index of the last one of the measurement durations.
13. The apparatus of claim 11, wherein a number of secondary reference signals per frame is determined based on properties of a service.
14. The apparatus of claim 11, wherein a number of secondary reference signals per frame is determined based on a time delay and an overhead.
15. The apparatus of claim 11, wherein the transmitting of the secondary reference signals comprises:
determining a total number of measurement durations carrying the secondary reference signals based on a total number of the one or more of the primary reference signals; and
transmitting the secondary reference signals through the measurement durations.
16. An apparatus for operating a terminal in a wireless communication system, the apparatus comprising:
a transceiver configured to:
receive at least one primary reference signal having a first beam width,
receive control information regarding an allocation of secondary reference signals, and
receive the secondary reference signals having a second beam width,
wherein each of the secondary reference signals is transmitted in a direction within a propagation range of one or more of the primary reference signals, preferred by the terminal.
17. The apparatus of claim 16, wherein the control information comprises at least one of:
at least one index of the one or more of the primary reference signals,
at least one combination of at least one index of the one or more of the primary reference signals and at least one index of a corresponding at least one measurement duration,
a total number of the secondary reference signals,
a total number of measurement durations carrying the secondary reference signals,
a total number of the one or more of the primary reference signals, or
an index of the last one of the measurement durations.
18. The apparatus of claim 16, wherein a number of secondary reference signals per frame is determined based on properties of a service.
19. The apparatus of claim 16, wherein a number of secondary reference signals per frame is determined based on a time delay and an overhead.
20. The apparatus of claim 16, wherein the transmitting of the secondary reference signals comprises:
identifying at least one measurement duration corresponding to the at least one primary reference signal; and
detecting the at least one of the secondary reference signals during the at least one measurement duration.
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. A method comprising:
receiving a communication at a primary computer node from a client, the primary computer node having a first user space and a first system space, the first user space containing an executable file of a transactional application which provides services to the client, and the first system space having a first operating system which manages system resources of the primary computer node;
first executing a first process of the executable file, the first process including a first call to a first function outside of the executable file;
second executing a modified function outside of the executable file in response to the first call, the modified function including the first function and a second call to a recording function outside of the executable file;
detecting the second call at a secondary computer node, different from the primary computer node and the client, the secondary computer node having a second user space and a second system space, the second user space containing a logging module of an intermediate application which includes the recording function, and the second system space having a second operating system which manages system resources of the secondary computer node; and
third executing the recording function at the secondary computer node to store logged data at the secondary computer node, the logged data representing execution of the first process.
2. The method of claim 1 wherein the first call accesses a state of one of the system resources of the primary computer node.
3. The method of claim 1 wherein the logged data includes an event internal to the system resources of the primary computer node.
4. The method of claim 1 wherein said detecting includes sending a logging message which includes the logged data from a first messaging agent in the first system space controlled by a first logging control process in the first user space to a second messaging agent in the second system space controlled by a second logging control process in the second user space.
5. The method of claim 1, further comprising:
detecting an operational failure at the primary computer node;
in response to said detecting, executing a restart process at the secondary computer node using the logged data.
6. The method of claim 1 wherein the primary computer node uses a first network device to communicate with the client over a first network, and uses a second network device to communicate with the secondary computer node over a second network.
7. The method of claim 1 wherein the modified function is contained in a library file having a plurality of library functions, the first function being one of the library functions.
8. A computer system comprising:
a primary computer node having a first user space and a first system space, the first user space containing an executable file of a transactional application which provides services to a client, the executable file including a first process including a first call to a first function outside of the executable file, wherein a modified function is executed in response to the first call, the modified function including the first function and a second call to a recording function outside of the executable file, and the first system space having a first operating system which manages system resources of said primary computer node; and
a secondary computer node, different from said primary computer node and the client, having a second user space and a second system space, the second user space containing a logging module of an intermediate application which includes the recording function, the recording function including a second process executed in response to the second call, the second process storing logged data at said secondary computer node, the logged data representing execution of the first process, and the second system space having a second operating system which manages system resources of said secondary computer node.
9. The computer system of claim 8 wherein the first call accesses a state of one of the system resources of said primary computer node.
10. The computer system of claim 8 wherein the logged data includes an event internal to the system resources of said primary computer node.
11. The computer system of claim 8 wherein the first system space includes a first messaging agent controlled by a first logging control process in the first system space which sends a logging message including the logged data to a second messaging agent in the second system space controlled by a second logging control process in the second user space.
12. The computer system of claim 8 wherein the intermediate application detects an operational failure at said primary computer node, and responsively executes a restart process at said secondary computer node using the logged data.
13. The computer system of claim 8 wherein said primary computer node uses a first network device to communicate with the client over a first network, and uses a second network device to communicate with said secondary computer node over a second network.
14. The computer system of claim 8 wherein the modified function is contained in a library file having a plurality of library functions, the first function being one of the library functions.