Remote radio header selection

• US 9,161,299 B2
• Filed: 06/25/2013
• Issued: 10/13/2015
• 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
• Primary Examiner(s): Trinh, Sonny
• Application Number:
  US13/926,602
• Publication Number:
  US 20140212129A1
• Time in Patent Office: 840 Days
• Field of Search: 455/422.1, 455/423, 455/67.11
• US Class Current: 1/1
• 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 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.

2. The remote radio device of claim 1, 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.

3. The remote radio device of claim 1, wherein the calibration component is configured to determine the data transmission loss as a function of loading on the remote radio device.

4. The remote radio device of claim 3, wherein the calibration component is configured to increase a value associated with the data transmission loss based on an increase in the loading.

5. The remote radio device of claim 1, 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.

6. The remote radio device of claim 5, wherein the radio unit is configured to broadcast the information periodically.

7. The remote radio device of claim 1, 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.

8. The remote device of claim 7, 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.

9. The remote radio device of claim 7, wherein the power component is configured to increase the transmission power in response to the data transmission loss associated being below a threshold value.

10. The remote radio device of claim 1, 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.

11. 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.

12. The method of claim 11, 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.

13. The method of claim 11, 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.

14. The method of claim 13, 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.

15. The method of claim 14, 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.

16. The method of claim 11, 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.

17. The method of claim 16, 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 coordinated 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.

18. 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.

19. The mobile device of claim 18, 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.

20. The mobile device of claim 19, 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.

21. The mobile device of claim 20, 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.

22. A non-transitory 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;

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; and

determining second data transmission loss associated with data transmission between the remote radio device and the mobile device using radio frequency signals.

23. The non-transitory computer readable medium of claim 22, 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.

24. The non-transitory computer readable medium of claim 22, the operations further comprising employing the information to determine a coordinated multipoint transmission (CoMP) scheme or a handover operation associated with the remote radio device and the mobile device.