Adaptive control channel detection in wireless communications

Patent metadata

Field	Value
Publication number	US-2016119804-A1
Application number	US-201414526273-A
Country	US
Kind code	A1
Filing date	Oct 28, 2014
Priority date	Oct 28, 2014
Publication date	Apr 28, 2016
Grant date	—

Abstract

Aspects described herein relate to adaptive control channel detection in wireless communications. A signal-to-interference-and-noise ratio (SINR) of a signal received by a receiver comprising multiple sub-receivers is measured, wherein the SINR is filtered according to a signal combining technology. Based at least in part on the SINR, it is determined whether to utilize the signal combining technology in combining signals related to a channel received over the multiple sub-receivers. Accordingly, the signals related to the channel received over the multiple sub-receivers can be demodulated using the signal combining technology based on determining to utilize the signal combining technology

First claim

1 . A method for adaptive control channel detection in wireless communications, comprising:
measuring a signal-to-interference-and-noise ratio (SINR) of a signal received by a receiver comprising multiple sub-receivers, wherein the SINR is filtered according to a signal combining technology; determining, based at least in part on the SINR, whether to utilize the signal combining technology in combining subsequently received signals related to a channel received over the multiple sub-receivers; and demodulating the subsequently received signals related to the channel received over the multiple sub-receivers using the signal combining technology based on determining to utilize the signal combining technology.

2 . The method of claim 1 , further comprising measuring another SINR of the signal, wherein the another SINR is filtered for another selection combining technology, wherein the determining is based at least in part on comparing the SINR to the another SINR to determine a difference relative to a threshold.

3 . The method of claim 2 , wherein the signal combining technology is minimum mean squared error (MMSE) diversity combining, and the another signal combining technology is antenna selection combining.

4 . The method of claim 2 , further comprising adaptively determining the threshold based at least in part on a minimum mean squared error (MMSE) combined noise standard deviation, wherein the signal combining technology is MMSE diversity combining.

5 . The method of claim 1 , further comprising detecting a control value for the channel at least in part by comparing one or more detection thresholds to the channel, wherein the one or more detection thresholds are determined based at least in part on the determining whether to utilize the signal combining technology combining the subsequently received signals.

6 . The method of claim 1 , wherein the measuring is performed based at least in part on determining whether antenna diversity is enabled at a multipath antenna over which the signal is received.

7 . The method of claim 1 , wherein the signal is a pilot signal.

8 . The method of claim 1 , wherein the channel is a media access control channel.

9 . An apparatus for adaptive control channel detection in wireless communications, comprising:
a signal-to-interference-and-noise ratio (SINR) measuring component configured to measure a SINR of a signal received by a receiver comprising multiple sub-receivers, wherein the SINR is filtered according to a signal combining technology; a signal combining component configured to determine, based at least in part on the SINR, whether to utilize the signal combining technology in combining subsequently received signals related to a channel received over the multiple sub-receivers; and a channel demodulating component configured to demodulate the subsequently received signals related to the channel received over the multiple sub-receivers using the signal combining technology based on determining to utilize the signal combining technology.

10 . The apparatus of claim 9 , wherein the SINR measuring component is further configured to measure another SINR of the signal, wherein the another SINR is filtered for another selection combining technology, and wherein the signal combining component is further configured to determine whether to utilize the signal combining technology based at least in part on comparing the SINR to the another SINR to determine a difference relative to a threshold.

11 . The apparatus of claim 10 , wherein the signal combining technology is minimum mean squared error (MMSE) diversity combining, and the another signal combining technology is antenna selection combining.

12 . The apparatus of claim 10 , further comprising a threshold determining component configured to adaptively determine the threshold based at least in part on a minimum mean squared error (MMSE) combined noise standard deviation, wherein the signal combining technology is MMSE diversity combining.

13 . The apparatus of claim 9 , wherein the channel demodulating component is further configured to detect a control value for the channel at least in part by comparing one or more detection thresholds to the channel, wherein the one or more detection thresholds are determined based at least in part on the signal combining component determining whether to utilize the signal combining technology combining the subsequently received signals.

14 . The apparatus of claim 9 , wherein the SINR measuring component is configured to measure based at least in part on determining whether antenna diversity is enabled at a multipath antenna over which the signal is received.

15 . The apparatus of claim 9 , wherein the signal is a pilot signal.

16 . The apparatus of claim 9 , wherein the channel is a media access control channel.

17 . An apparatus for adaptive control channel detection in wireless communications, comprising:
means for measuring a signal-to-interference-and-noise ratio (SINR) of a signal received by a receiver comprising multiple sub-receivers, wherein the SINR is filtered according to a signal combining technology; means for determining, based at least in part on the SINR, whether to utilize the signal combining technology in combining subsequently received signals related to a channel received over the multiple sub-receivers; and means for demodulating the subsequently received signals related to the channel received over the multiple sub-receivers using the signal combining technology based on determining to utilize the signal combining technology.

18 . The apparatus of claim 17 , wherein the means for measuring further measures another SINR of the signal, wherein the another SINR is filtered for another selection combining technology, and wherein the means for determining determines whether to utilize the signal combining technology based at least in part on comparing the SINR to the another SINR to determine a difference relative to a threshold.

19 . The apparatus of claim 18 , wherein the signal combining technology is minimum mean squared error (MMSE) diversity combining, and the another signal combining technology is antenna selection combining.

20 . The apparatus of claim 18 , further comprising means for adaptively determining the threshold based at least in part on a minimum mean squared error (MMSE) combined noise standard deviation, wherein the signal combining technology is MMSE diversity combining.

21 . The apparatus of claim 17 , wherein the means for demodulating further detects a control value for the channel at least in part by comparing one or more detection thresholds to the channel, wherein the one or more detection thresholds are determined based at least in part on the means for determining determining whether to utilize the signal combining technology combining the subsequently received signals.

22 . The apparatus of claim 17 , wherein the means for measuring measures based at least in part on determining whether antenna diversity is enabled at a multipath antenna over which the signal is received.

23 . The apparatus of claim 17 , wherein the signal is a pilot signal.

24 . A non-transitory computer-readable medium storing computer executable code for adaptive control channel detection, comprising:
code executable to measure a signal-to-interference-and-noise ratio (SINR) of a signal received by a receiver comprising multiple sub-receivers, wherein the SINR is filte

Assignees

• Qualcomm Inc

Inventors

• He Ruhua
• Ekin Sabit
• Vijayakumar Vijey Bhaskar
• Krishnamoorthy Parthasarathy
• Asthana Tanmaya
• Mohiuddin Mohammed Galib Asadullah
• Attar Rashid Ahmed Akbar
• Kaivaram Pavan
• Chen Deqiang

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L5/0048

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04W24/08 Primary

  Testing, {supervising or monitoring} using real traffic · CPC title

• H04B7/0885

  with combination · CPC title

• H04W72/042

  Electricity · mapped topic