Determining Whether to Transmit Data on A Candidate Radio Channel

Content Provider	The Lens
Abstract	It is presented a method for determining whether to initiate transmission of data on a candidate radio channel during a candidate period. The method is performed in a transceiver device and comprises the steps of: obtaining a first signal metric indicating a signal level of the candidate radio channel; determining that the first signal metric indicates a signal level being greater than a first threshold; obtaining a second signal metric indicating a signal level of at least one adjacent radio channel, being adjacent in frequency to the candidate radio channel; refraining from initiating transmission on the candidate radio channel in the candidate period when the second signal metric indicates a lower signal level than the first signal metric; and initiating transmission of data on the candidate radio channel in the candidate period when the second signal metric indicates a higher signal level than the first signal metric.
Related Links	https://www.lens.org/lens/patent/010-786-819-787-092/frontpage
Language	English
Publisher Date	2019-02-14
Access Restriction	Open
Content Type	Text
Resource Type	Patent
Jurisdiction	United States of America
Date Applied	2016-03-23
Applicant	Ericsson Telefon Ab L M
Application No.	201616078258
Claim	A method for determining whether to initiate transmission of data on a candidate radio channel during a candidate period, the method being performed in a transceiver device of a cellular network and comprising the steps of: obtaining a first signal metric indicating a signal level of the candidate radio channel; determining that the first signal metric indicates a signal level being greater than a first threshold; obtaining a second signal metric indicating a signal level of at least one adjacent radio channel, being adjacent in frequency to the candidate radio channel; refraining from initiating transmission on the candidate radio channel in the candidate period when the second signal metric indicates a lower signal level than the first signal metric; and initiating transmission of data on the candidate radio channel in the candidate period when the second signal metric indicates a higher signal level than the first signal metric. The method according to claim 1 , wherein the step of initiating transmission comprises initiating transmission of data on the candidate radio channel in the candidate period only when the first signal metric indicates a signal level being lower than a second threshold. The method according to claim 1 , further comprising the step of: adjusting the first threshold over time based on changing signal levels. The method according to claim 3 when dependent on claim 2 , wherein the step of adjusting, further comprising adjusting the second threshold over time based on changing signal levels. The method according to claim 3 , wherein the step of adjusting further comprises adjusting based on detecting details of a radio access technology used for transmission on the at least one adjacent radio channe The method according to claim 1 wherein the step of obtaining a second signal metric further comprises obtaining the second signal metric indicating a signal level of a two adjacent radio channels being adjacent in frequency on either side of the candidate radio channe The method according to claim 1 , wherein the radio channel is a radio channel according to Long Term Evolution Licence Assisted Access, LTE-LAA, as defined in 3GPP Release 13. The method according to claim 1 , wherein each one of the first signal metric and the second signal metric is an average of several individual measurements. The method according to claim 1 , wherein the step of obtaining a first signal metric and the step of obtaining a second signal metric are based on measurements performed at the same time. A transceiver device for determining whether to initiate transmission of data on a candidate radio channel during a candidate period, the transceiver device being arranged to form part of a cellular network and comprising: a processor; and a memory storing instructions that, when executed by the processor, causes the transceiver device to: obtain a first signal metric indicating a signal level of the candidate radio channel; determine that the first signal metric indicates a signal level being greater than a first threshold; obtain a second signal metric indicating a signal level of at least one adjacent radio channel, being adjacent in frequency to the candidate radio channel; refrain from initiating transmission on the candidate radio channel in the candidate period when the second signal metric indicates a lower signal level than the first signal metric; and initiate transmission of data on the candidate radio channel in the candidate period when the second signal metric indicates a higher signal level than the first signal metric. The transceiver device according to claim 1 , wherein the instructions to initiate transmission comprise instructions that, when executed by the processor, causes the transceiver device to initiate transmission of data on the candidate radio channel in the candidate period only when the first signal metric indicates a signal level being lower than a second threshold. The transceiver device according to claim 1 , further comprising instructions that, when executed by the processor, causes the transceiver device to: adjust the first threshold over time based on changing signal levels. The transceiver device according to claim 3 , wherein the step of initiating transmission comprises initiating transmission of data on the candidate radio channel in the candidate period only when the first signal metric indicates a signal level being lower than a second threshold, and wherein the instructions to adjust further comprise instructions that, when executed by the processor, causes the transceiver device to adjust the second threshold over time based on changing signal levels. (canceled) The transceiver device according to claim 10 , wherein the instructions to obtain a second signal metric further comprise instructions that, when executed by the processor, causes the transceiver device to obtain the second signal metric indicating a signal level of a two adjacent radio channels being adjacent in frequency on either side of the candidate radio channe The transceiver device according to claim 10 , wherein the radio channel is a radio channel according to Long Term Evolution Licence Assisted Access, LTE-LAA, as defined in 3GPP Release 13. The transceiver device according to claim 10 , wherein each one of the first signal metric and the second signal metric is an average of several individual measurements. The transceiver device according to claim 10 , further comprising instructions to perform the instructions to obtain a first signal metric and to obtain a second signal metric at the same time. A transceiver device comprising: means for obtaining a first signal metric indicating a signal level of a candidate radio channel; means for determining that the first signal metric indicates a signal level being greater than a first threshold; means for obtaining a second signal metric indicating a signal level of at least one adjacent radio channel, being adjacent in frequency to the candidate radio channel; means for refraining from initiating transmission on the candidate radio channel in a candidate period when the second signal metric indicates a lower signal level than the first signal metric; and means for initiating transmission of data on the candidate radio channel in the candidate period when the second signal metric indicates a higher signal level than the first signal metric. A computer program for determining whether to initiate transmission of data on a candidate radio channel during a candidate period, the computer program comprising computer program code which, when run on a transceiver device being part of a cellular network causes the transceiver device to: obtain a first signal metric indicating a signal level of the candidate radio channel; determine that the first signal metric indicates a signal level being greater than a first threshold; obtain a second signal metric indicating a signal level of at least one adjacent radio channel, being adjacent in frequency to the candidate radio channel; refrain from initiating transmission on the candidate radio channel in the candidate period when the second signal metric indicates a lower signal level than the first signal metric; and initiating transmission of data on the candidate radio channel in the candidate period when the second signal metric indicates a higher signal level than the first signal metric. A computer program product comprising a computer program according to claim 20 and a computer readable means on which the computer program is stored.
CPC Classification	WIRELESS COMMUNICATION NETWORKS
Extended Family	137-415-106-059-995 156-346-279-986-01X 010-786-819-787-092 121-845-461-928-98X 149-472-745-771-555
Patent ID	20190053277
Inventor/Author	Leinonen Marko E Heinikoski Kauko
IPC	H04W74/08 H04W24/10
Status	Active
Owner	Telefonaktiebolaget Lm Ericsson (publ) Oy L M Ericsson Ab
Simple Family	137-415-106-059-995 156-346-279-986-01X 010-786-819-787-092 121-845-461-928-98X 149-472-745-771-555
CPC (with Group)	H04W74/0808 H04W16/14 H04W24/10
Issuing Authority	United States Patent and Trademark Office (USPTO)
Kind	Patent Application Publication