REMOTE RADIO HEADER SELECTION

• US 20140212129A1
• Filed: 06/25/2013
• Published: 07/31/2014
• Est. Priority Date: 01/28/2013
• Status: Active Grant

• Current Assignee: K.Mizra LLC
• Original Assignee: Transpacific IP Management Group Ltd. (Transpacific IP Group Limited)
• Inventors: Huang, Ching-Yao, Chou, Chie-Ming
• Granted Patent: US 9,161,299 B2
• Time in Patent Office: Days
• US Class Current: 398/2
• CPC Class Codes: H04B 10/25 Arrangements specific to fibre transmission
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 48/20 Selecting an access point
• CPC Class Codes: H04W 88/085 Access point devices with remote components

Abstract

Techniques for optimizing data transmission efficiency and accuracy in cellular network environments using remote radio headers are presented. In an aspect, a mobile device includes a collection component configured to collect fiber loss data from a plurality of remote radio devices in a cellular network. The fiber loss data can include data representative of data transmission loss over fibers respectively connecting the plurality of remote radio devices to a base station device. The mobile device further includes a selection component configured to select a remote radio device from the plurality of remote radio devices with which to access based in part on the fiber loss data.

Claims

1. A mobile device comprising:

a memory having computer executable components stored thereon; and

a processor communicatively coupled to the memory, the processor configured to facilitate execution of the computer executable components, the computer executable components, comprising;

a collection component configured to collect fiber loss data from a plurality of remote radio devices in a cellular network, wherein the fiber loss data includes data representative of data transmission loss over optical fibers respectively connecting the plurality of remote radio devices to a base station device; and

a selection component configured to select a remote radio device from the plurality of remote radio devices with which to access based in part on the fiber loss data.

2. The mobile device of claim 1, wherein the selection component is further configured to determine amounts of data transmission loss associated with respective ones of the plurality of remote radio devices based on the fiber loss data and select the remote radio device based in part on the remote radio device having a least amount of data transmission loss.

3. The mobile device of claim 1, wherein the collection component is further configured to collect radio frequency signal strength data from the plurality of remote radio devices, wherein the radio frequency signal strength data includes data representative of strengths of radio frequency signals received from the remote radio devices, respectively, at the mobile device, and wherein the selection component is further configured to select the remote radio device based in part on the radio frequency signal strength data.

4. The mobile device of claim 3, wherein the selection component is further configured to determine amounts of data transmission loss associated with respective ones of the plurality of remote radio devices based on the fiber loss data and the radio frequency signal strength data and select the remote radio device based in part on the remote radio device having a least amount of data transmission loss.

5. The mobile device of claim 3, wherein the selection component is further configured to determine amounts of data transmission loss associated with respective ones of the plurality of remote radio devices based on the fiber loss data and the radio frequency signal strength data and select the remote radio device based in part on the remote radio device having an amount of data transmission loss that is below a predetermined threshold value.

6. The mobile device of claim 3, wherein the selection component is further configured to select the remote radio device based in part on the remote radio device having a least amount of data transmission loss based on the fiber loss data and having a received radio frequency signal at a strength above a predetermined threshold value based on the radio frequency signal strength data.

7. The mobile device of claim 3, wherein the selection component is further configured to select the remote radio device based in part on the remote radio device having an amount of data transmission loss based on the fiber loss data that is below a predetermined threshold value and having a received radio frequency signal at a strength above a predetermined threshold value based on the radio frequency signal strength data.

8. The mobile device of claim 1, further comprising a coordination component configured to initiate coordinated multipoint transmission (CoMP) signaling based in part of the fiber loss data.

9. The mobile device of claim 1, wherein the mobile device is served by a first one of the plurality of remote radio devices, the mobile device further comprising a coordination component configured to initiate handover signaling based in part on the fiber loss data.

10. A remote radio device, comprising:

a radio unit configured to wirelessly communicate with another device using radio frequency signals;

a baseband unit configured to communicate with a base station device using a cable connecting the device to the base station device;

a memory having computer executable components stored thereon; and

a processor communicatively coupled to the memory, the processor configured to facilitate execution of the computer executable components, the computer executable components, comprising;

a calibration component configured to determine data transmission loss associated with transmission of data over the cable, wherein the radio unit is configured to broadcast information representative of the data transmission loss.

11. The remote radio device of claim 10, wherein the calibration component is configured to determine the data transmission loss as a function of interference associated with a cellular network in which the remote radio device is employed.

12. The remote radio device of claim 10, wherein the calibration component is configured to determine the data transmission loss as a function of loading on the remote radio device.

13. The remote radio device of claim 12, wherein the calibration component is configured to increase a value associated with the data transmission loss based on an increase in the loading.

14. The remote radio device of claim 10, wherein radio unit is configured to broadcast the information representative of the data transmission loss in response to determination of the data transmission loss by the calibration component.

15. The remote radio device of claim 14, wherein the radio unit is configured to broadcast the information periodically.

16. The remote radio device of claim 10, the computer executable components further comprising a power component configured to modify transmission power associated with data transmission using the radio frequency unit or the baseband unit based on data transmission loss.

17. The remote device of claim 16, wherein the calibration component is configured to modify a value associated with the data transmission loss based on the transmission power and wherein the radio unit is configured to broadcast the value.

18. The remote radio device of claim 16, wherein the power component is configured to increase the transmission power in response to the data transmission loss associated being below a threshold value.

19. The remote radio device of claim 10, the computer executable components further comprising a collection component configured to collect other information representative of data transmission loss over cables respectively connecting neighboring remote radio device devices to one or more base station devices, wherein the base station device is included in the one or more base station devices, and wherein the and the radio unit is configured to broadcast the other information.

20. A method comprising:

employing at least one processor executing computer executable instructions embodied on at least one non-transitory computer readable medium to perform operations comprising;

determining, by a remote radio device, data transmission loss associated with transmission of data over a cable connecting the remote radio device to a base station device;

receiving, by the remote radio device, a request from a mobile device to access the remote radio device;

determining a power level of a radio frequency signal received by the remote radio device in association with the request;

determining a performance level based on the data transmission loss and the power level; and

enabling the mobile device to access the remote radio device in response to the performance level being above a threshold value.

21. The method of claim 20, further comprising denying access between the remote radio device and the mobile device in response to the performance level being determined to be below the threshold value.

22. The method of claim 20, further comprising:

receiving by the remote radio device, measurement data indicating strengths of signals received by the mobile device and other remote radio devices associated with a cellular network in which the remote radio device is employed;

calibrating the measurement data based on the data transmission loss to determine calibrated measurement data; and

determining a coordinated multipoint transmission scheme involving at least one of the other remote radio devices based on the calibrated measurement data.

23. The method of claim 22, further comprising:

collecting other information representative of data transmission loss over cables respectively connecting the other remote radio device devices to one or more base station devices of the cellular network, wherein the base station device is included in the one or more base station devices, and wherein the calibrating further comprises calibrating the measurement data based on the other information.

24. The method of claim 23, further comprising;

estimating data transmission loss associated with radio frequency signal transmission between the mobile device and the other remote radio devices respectively based in part on a location of the mobile device, wherein the calibrating further comprises calibrating the measurement data based on the data transmission loss associated with the radio frequency signal transmission between the mobile device and the other remote devices.

25. The method of claim 20, further comprising:

accessing with the remote radio device for a period of time;

prompting the remote device to transmit a reference signal after the period of time; and

receiving, in response to the prompting, other information representative of first data transmission loss over cables respectively connecting neighbouring remote radio device devices to one or more base station devices, wherein the base station device is included in the one or more base station devices, and second data transmission loss associated with radio frequency transmission between respective ones of the neighbouring remote radio device devices and the mobile device.

26. The method of claim 25, further comprising:

determining by the remote radio device after the period of time, updated data transmission loss associated with transmission of data over the cable connecting the remote radio device to the base station device; and

determining a multipoint transmission (CoMP) protocol or a handover operation associated with the remote radio device and the mobile device based on the other information and the updated data transmission loss.

27. A mobile device comprising;

a memory having computer executable components stored thereon; and

a processor communicatively coupled to the memory, the processor configured to facilitate execution of the computer executable components, the computer executable components, comprising;

a selection component configured to select a remote radio device from a plurality of remote radio devices of a cellular network to employ for data transmission;

a communication component configured to conduct the data transmission with the remote radio device using radio frequency transmissions; and

a performance evaluation component configured to determine a data transmission performance level based on the radio frequency transmissions, compare the data transmission performance level to a reference value, and infer a degree of data loss associated with data transmission between the remote radio device and a base station device over a cable employed by the remote radio device to complete the data transmission based on a difference between the data transmission performance level and the reference value.

28. The mobile device of claim 27, the computer executable components further comprising:

a calibration component configured to calibrate the data transmission performance level based on the degree of data loss associated with the data transmission between the remote radio device and the base station device over the cable to generate a calibrated data transmission performance level.

29. The mobile device of claim 28, the computer executable components further comprising:

a reporting component configured to report information representative of at least one of the data transmission performance level or the calibrated data transmission performance level to the remote radio device.

30. The mobile device of claim 29, wherein the selection component is configured to receive a request to end data communication with the remote radio device in response to transmission of the information to the remote radio device.

31. A tangible computer readable medium comprising computer executable instructions that, in response to execution, cause a system comprising a processor to perform operations, comprising:

receiving, by a remote radio device employed by a mobile device for data transmission, information indicating a drop in a rate of the data transmission; and

determining first data transmission loss associated with data transmission between the remote radio device and a base station device over a cable connecting the remote radio device and the base station device based on the information and in response to the receiving the information.

32. The tangible computer readable medium of claim 31, the operations further comprising determining second data transmission loss associated with data transmission between the remote radio device and the mobile device using radio frequency signals.

33. The tangible computer readable medium of claim 32, the operations further comprising associating information representative of the first and second data transmission loss with the mobile device in memory of the remote radio device.

34. The tangible computer readable medium of claim 32, the operations further comprising employing the information to determine a multipoint transmission (CoMP) scheme or a handover operation associated with the remote radio device and the mobile device.