Handling incompatible wireless devices
A method, system and apparatus are disclosed for handling incompatible wireless devices. In one embodiment, a method implemented in a network node operating at least one first cell of a first radio access technology (RAT) includes obtaining a WD capability information, the WD capability information indicating whether the WD is capable of at least one spectrum sharing capability; and based at least part on the received WD capability information, determining whether the WD is one of spectrum sharing capable and spectrum sharing incapable. In one embodiment, a method implemented in a wireless device (WD) includes receiving a request for a WD capability information; and as a result of the request, sending the WD capability information to the network node, the WD capability information indicating whether the WD is capable of at least one spectrum sharing capability.
1. A method implemented in a wireless device, WD, configured to communicate with a first network node of a Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) cell, the first network node being an LTE Master eNodeB, MeNB, and to communicate with a network node supporting at least one second cell of a second 3GPP New Radio (NR) RAT, the network node of the second RAT being a NR Secondary gNodeB, SgNB, the method comprising:
receiving, from the first network node, a request for a WD capability information;
as a result of the request, sending the WD capability information to the first network node, the WD capability information indicating that the WD is capable of at least one spectrum sharing capability, the WD capability information including at least one of radio resource control (RRC) parameters rateMatchingLTE-CRS, additionalDMRS-DL-Alt and rateMatchingResrcSetSemi-Static;
the at least one spectrum sharing capability including at least one of:
an LTE cell-specific reference signal (CRS) rate matching capability;
an additional demodulation reference signal (DMRS) position for LTE CRS co-existence with 3GPP NR capability; and
a general rate matching pattern to map around LTE synchronization signals and a physical broadcast channel (PBCH) capability;
receiving, from the first network node, a reconfiguration message configuring the WD to perform a B1 measurement on at least one 3GPP NR cell; and
performing the B1 measurement on at least one 3GPP NR cell after receiving the request for WD capability information from the first network node.
2. The method of claim 1 , wherein the request for WD capability information and the received WD capability information is via RRC connection setup messages to connect to the 3GPP LTE MeNB.
3. The method of claim 1 , further comprising:
receiving a RRC reconfiguration message to perform the B1 measurement on at least one cell, the at least one cell having a spectrum sharing mode that matches the WD capability information.
4. A method implemented in a first network node operating at least one first cell of a first radio access technology (RAT), the first RAT being a Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) RAT, the first network node being an LTE Master eNodeB, MeNB and a network node supporting at least one second cell of a second 3GPP New Radio (NR) RAT being a NR Secondary gNodeB, SgNB, the method comprising:
obtaining, from a wireless device (WD), a WD capability information, the WD capability information indicating that the WD is capable of at least one spectrum sharing capability, the WD capability information including at least one of radio resource control (RRC) parameters rateMatchingLTE-CRS, additionalDMRS-DL-Alt and rateMatchingResrcSetSemi-Static;
the spectrum sharing capability of the WD including at least one of:
an LTE cell-specific reference signal (CRS) rate matching capability;
an additional demodulation reference signal (DMRS) position for LTE CRS co-existence with 3GPP NR capability; and
a general rate matching pattern to map around LTE synchronization signals and a physical broadcast channel (PBCH) capability;
transmitting, to the network node supporting at least one second cell of a second 3GPP NR RAT, a dual connectivity (DC) X2 setup message;
receiving information about a spectrum sharing mode of at least one second cell of the second RAT, from the network node supporting at least one second cell of a second 3GPP NR RAT, via a DC X2 setup response message, the spectrum sharing mode indicating that the at least one second cell of the second RAT is enabled to share a frequency band with the at least one first cell of the first RAT;
based at least in part on the WD being spectrum sharing capable and further based at least in part on the received information about the spectrum sharing mode of the at least one second cell of the second RAT, determining to configure the WD for a B1 measurement on the at least one second cell of the second RAT; and
transmitting, to the WD, a reconfiguration message indicating to the WD to start the B1 measurement.
5. The method of claim 4 , further comprising:
receiving the WD capability information from at least one of the WD and a core network node.
6. The method of claim 4 , wherein determining to configure the WD for the B1 measurement further comprises one or more of:
if the WD is spectrum sharing incapable, configuring the WD for the B1 measurement only on cells of the at least one second cell of the second RAT that indicated the spectrum sharing mode as not enabled for a spectrum sharing; and
if the WD is spectrum sharing capable and the at least one second cell of the second RAT has the spectrum sharing mode as enabled for the spectrum sharing, configuring the WD for the B1 measurement on the at least one second cell of the second RAT.
7. The method of claim 4 , wherein the request for WD capability information and the received WD capability information is via RRC connection setup messages.
8. A wireless device, WD, configured to communicate with a first network node of a Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) cell, the first network node being an LTE Master eNodeB, MeNB, and to communicate with a network node supporting at least one second cell of a second 3GPP New Radio (NR) RAT, the network node of the second RAT being a NR Secondary gNodeB, SgNB, the WD comprising processing circuitry, the processing circuitry configured to cause the WD to:
receive, from the first network, a request for a WD capability information;
as a result of the request, send the WD capability information to the first network node, the WD capability information indicating that the WD is capable of at least one spectrum sharing capability, the WD capability information including at least one of radio resource control, RRC, parameters rateMatchingLTE-CRS, additionalDMRS-DL-Alt and rateMatchingResrcSetSemi-Static;
the at least one spectrum sharing capability including at least one of:
an LTE cell-specific reference signal (CRS) rate matching capability;
an additional demodulation reference signal (DMRS) position for LTE CRS co-existence with 3GPP NR capability; and
a general rate matching pattern to map around LTE synchronization signals and a physical broadcast channel (PBCH) capability;
receive, from the first network node, a reconfiguration message configuring the WD to perform a B1 measurement on at least one 3GPP NR cell; and
perform the B1 measurement on at least one 3GPP (NR) NR cell after receiving the request for WD capability information from the first network node.
9. The WD of claim 8 , wherein the request for WD capability information and the received WD capability information is via, RRC connection setup messages to connect to the LTE MeNB.
10. The WD of claim 8 , further comprising:
receiving a RRC reconfiguration message to perform the B1 measurement on at least one cell, the at least one cell having a spectrum sharing mode that matches the WD capability information.
11. A first network node configured to communicate with a wireless device, WD, operating at least one first cell of a first radio access technology (RAT), the first RAT being a Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) RAT, the first network node being an LTE Master eNodeB, MeNB and a network node supporting at least one second cell of a second 3GPP New Radio (NR) RAT being a NR Secondary gNodeB, SgNB the first the network node comprising processing circuitry, the processing circuitry configured to cause the network node to:
obtain, from a wireless device (WD), a WD capability information, the WD capability information indicating that the WD is capable of at least one spectrum sharing capability, the WD capability information including at least one of radio resource control (RRC) parameters rateMatchingLTE-CRS, additionalDMRS-DL-Alt and rate MatchingResrcSetSemi-Static;
the spectrum sharing capability of the WD including at least one of:
an LTE cell-specific reference signal (CRS) rate matching capability;
an additional demodulation reference signal (DMRS) position for LTE CRS co-existence with 3GPP NR capability; and
a general rate matching pattern to map around LTE synchronization signals and a physical broadcast channel (PBCH) capability;
transmit, to the network node supporting at least one second cell of a second 3GPP NR RAT, a dual connectivity (DC) X2 setup message;
receive information about a spectrum sharing mode of at least one second cell of the second RAT, from the network node supporting at least one second cell of a second 3GPP NR RAT, via a DC X2 setup response message, the spectrum sharing mode indicating that the at least one second cell of the second RAT is enabled to share a frequency band with at least one first cell of a first RAT;
based at least in part on the WD being spectrum sharing capable and further based at least in part on the received information about the spectrum sharing mode of the at least one second cell of the second RAT, determine to configure the WD for a B1 measurement on the at least one second cell of the second RAT; and
transmit, to the WD, a reconfiguration message indicating to the WD to start the B1 measurement.
12. The first network node of claim 11 , further comprising:
receiving the WD capability information from at least one of the WD and a core network node.
13. The first network node of claim 11 , wherein determining to configure the WD for the B1 measurement further comprises one or more of:
if the WD is spectrum sharing incapable, configuring the WD for the B1 measurement only on cells of the at least one second cell of the second RAT that indicated the spectrum sharing mode as not enabled for a spectrum sharing; and
if the WD is spectrum sharing capable and the at least one second cell of the second RAT has the spectrum sharing mode as enabled for the spectrum sharing, configuring the WD for the B1 measurement on the at least one second cell of the second RAT.
14. The first network node of claim 11 , wherein the request for WD capability information and the received WD capability information is via RRC connection setup messages.