Node B measurement sharing
Methods, systems, and devices for wireless communications are described. A first cell associated with a first radio access technology (RAT) may transmit a measurement sharing request to a second cell associated with a second RAT based on a resource availability of the first cell. The measurement sharing request may indicate a request for the second cell to generate one or more channel measurements for a user equipment (UE). In response to the measurement sharing request, the second cell may transmit a measurement sharing acknowledgement or a measurement sharing rejection to the first cell based on a resource availability of the second cell. If the second cell transmits a measurement sharing acknowledgement to the first cell, the second cell may generate the requested channel measurements for the UE and may transmit an indication of the requested channel measurements to the first cell.
1 . A method for wireless communications at a first cell associated with a first radio access technology, comprising:
transmitting, from the first cell and to a second cell associated with a second radio access technology, a measurement sharing request based at least in part on a resource availability of the first cell;
receiving, from the second cell, an acknowledgement that the second cell is to participate in a measurement sharing procedure in response to the measurement sharing request; and
receiving, from the second cell and based at least in part on the acknowledgement, one or more channel measurements generated by the second cell that are associated with a user equipment (UE).
2 . The method of claim 1 , further comprising:
generating one or more beamforming weights based at least in part on the one or more channel measurements; and
communicating with the UE using the one or more beamforming weights.
3 . The method of claim 1 , wherein receiving the one or more channel measurements from the second cell comprises:
receiving, from the second cell, a message indicating an angle of arrival or a direction of arrival associated with one or more reference signals transmitted by the UE, a speed of the UE, or a combination thereof.
4 . The method of claim 1 , wherein receiving the one or more channel measurements from the second cell comprises:
receiving, from the second cell, a message indicating a channel response, a received power, a received signal to interference plus noise ratio, an interference plus noise value, or a combination thereof associated with one or more reference signals transmitted by the UE.
5 . The method of claim 1 , wherein the first radio access technology is a New Radio (NR) radio access technology and the second radio access technology is a Long Term Evolution (LTE) radio access technology.
6 . The method of claim 1 , wherein the second radio access technology is different from the first radio access technology.
7 . The method of claim 1 , wherein the second radio access technology is the same as the first radio access technology.
8 . The method of claim 1 , wherein transmitting the measurement sharing request is further based at least in part on the first cell and the second cell having overlapping coverage areas.
9 . The method of claim 1 , wherein transmitting the measurement sharing request is further based at least in part on the UE being in a connected state with the first cell and the second cell.
10 . The method of claim 1 , wherein transmitting the measurement sharing request is further based at least in part on the UE being in a connected state with the first cell and the UE being in an idle state with the second cell.
11 . The method of claim 1 , wherein transmitting the measurement sharing request is further based at least in part on the first cell and the second cell operating in the same radio frequency spectrum band.
12 . The method of claim 1 , further comprising:
scheduling one or more subsequent communications with the UE based at least in part on the one or more channel measurements.
13 . A method for wireless communications at a first cell associated with a first radio access technology, comprising:
receiving, from a second cell associated with a second radio access technology, a measurement sharing request based at least in part on a resource availability of the second cell;
transmitting, from the first cell and to the second cell, an acknowledgement that the first cell is to participate in a measurement sharing procedure in response to the measurement sharing request;
generating one or more channel measurements associated with a user equipment (UE) in accordance with the measurement sharing procedure;
transmitting, from the first cell and to the second cell, an indication of the one or more channel measurements in response to the measurement sharing request.
14 . The method of claim 13 , further comprising:
transmitting, from the first cell and to the UE, a request for the UE to transmit one or more reference signals using a resource allocation; and
receiving, from the UE, the one or more reference signals based at least in part on the resource allocation.
15 . The method of claim 14 , wherein generating the one or more channel measurements comprises:
generating the one or more channel measurements based at least in part on measuring the one or more reference signals.
16 . The method of claim 15 , wherein transmitting the indication of the one or more channel measurements comprises:
transmitting, from the first cell and to the second cell, a message indicating an angle of arrival or a direction of arrival associated with the one or more reference signals, a speed of the UE, or a combination thereof.
17 . The method of claim 15 , wherein transmitting the indication of the one or more channel measurements comprises:
transmitting, from the first cell and to the second cell, a message indicating a channel response, a received power, a received signal to interference plus noise ratio, an interference plus noise value, or a combination thereof associated with the one or more reference signals.
18 . The method of claim 14 , wherein receiving the one or more reference signals comprises:
receiving, from the UE, one or more sounding reference signals based at least in part on the resource allocation.
19 . The method of claim 14 , wherein receiving the one or more reference signals comprises:
receiving, from the UE, one or more demodulation reference signals or phase tracking reference signals based at least in part on the resource allocation.
20 . The method of claim 14 , wherein transmitting the request comprises:
transmitting, from the first cell and to the UE, a request for the ULE to transmit the one or more reference signals using a physical resource block range, a sounding reference signal slot offset, a sounding reference signal symbol offset, a sounding reference signal periodicity, or a combination thereof.
21 . The method of claim 14 , wherein transmitting the request comprises:
transmitting, from the first cell and to the UE, a radio resource control reconfiguration message that indicates the request.
22 . The method of claim 13 , wherein the first radio access technology is a Long Term Evolution (LTE) radio access technology and the second radio access technology is a New Radio (NR) radio access technology.
23 . The method of claim 13 , wherein the second radio access technology is different from the first radio access technology.
24 . The method of claim 13 , wherein the second radio access technology is the same as the first radio access technology.
25 . The method of claim 13 , wherein receiving the measurement sharing request is further based at least in part on the first cell and the second cell having overlapping coverage areas.
26 . The method of claim 13 , wherein receiving the measurement sharing request is further based at least in part on the UE being in a connected state with the first cell and the second cell.
27 . The method of claim 13 , wherein receiving the measurement sharing request is further based at least in part on the UE being in a connected state with the second cell and the UE being in an idle state with the first cell.
28 . The method of claim 13 , wherein receiving the measurement sharing request is further based at least in part on the first cell and the second cell operating in the same radio frequency spectrum band.
29 . An apparatus for wireless communications, comprising:
a processor;
memory coupled with the processor; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
transmit, from a first cell associated with a first radio access technology to a second cell associated with a second radio access technology, a measurement sharing request based at least in part on a resource availability of the first cell;
receive, from the second cell, an acknowledgement that the second cell is to participate in a measurement sharing procedure in response to the measurement sharing request; and
receive, from the second cell and based at least in part on the acknowledgement, one or more channel measurements generated by the second cell that are associated with a user equipment (UE).
30 . An apparatus for wireless communications, comprising:
a processor;
memory coupled with the processor; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
receive, at a first cell associated with a first radio access technology and from a second cell associated with a second radio access technology, a measurement sharing request based at least in part on a resource availability of the second cell;
transmit, from the first cell and to the second cell, an acknowledgement that the first cell is to participate in a measurement sharing procedure in response to the measurement sharing request;
generate one or more channel measurements associated with a user equipment (UE) in accordance with the measurement sharing procedure;
transmit, from the first cell and to the second cell, an indication of the one or more channel measurements in response to the measurement sharing request.