Uplink reference signal association method and communication apparatus
An uplink reference signal association method and a communication apparatus. The method includes: a first network device generates first configuration information, where the first configuration information indicates an association relationship between uplink reference signals simultaneously sent on different carriers, and the uplink reference signals having the association relationship share an antenna port or the uplink reference signals having the association relationship have a phase difference. The first network device sends the first configuration information to a terminal device. Through implementation, configuration of a large-bandwidth uplink reference signal can be implemented.
1 . A method, comprising:
generating first configuration information, wherein the first configuration information indicates an association relationship between uplink reference signal resource sets on different carriers; and the association relationship between uplink reference signal resource sets also indicates that there is an association relationship between uplink reference signals that are simultaneously sent in the associated uplink reference signal resource sets; wherein the uplink reference signals having the association relationship share a same antenna port, and the same antenna port means that a channel over which a symbol on an antenna port is carried can be inferred from a signal over which another symbol on a same antenna port is carried; and phases of the uplink reference signals having the association relationship are continuous; and
sending the first configuration information to a terminal device.
2 . The method according to claim 1 , wherein the first configuration information further indicates that the uplink reference signals having the association relationship share the same antenna port or that the uplink reference signals having the association relationship have a phase difference.
3 . The method according to claim 2 , wherein the phase difference between the uplink reference signals having the association relationship is a fixed value.
4 . The method according to claim 1 , wherein a phase difference between the uplink reference signals having the association relationship is a fixed value.
5 . The method according to claim 1 , further comprising:
generating second configuration information, wherein the second configuration information indicates the association relationship between uplink reference signal resource sets on different carriers;
sending the second configuration information to a location management device.
6 . The method according to claim 5 , wherein the second configuration information further indicates that the uplink reference signals having the association relationship share the same antenna port or that the uplink reference signals having the association relationship have a phase difference.
7 . The method according to claim 1 , further comprising:
receiving first information from a location management device;
the first information is used to request the first network device to configure an uplink reference signal with a preset bandwidth, wherein the preset bandwidth is greater than 100 megahertz (MHz) or the preset bandwidth is greater than 400 MHz; or
the first information is used to request the first network device to configure the association relationship between uplink reference signal resource sets on different carriers.
8 . A method for associating uplink reference signals, comprising:
receiving first configuration information, wherein the first configuration information indicates an association relationship between uplink reference signal resource sets on different carriers; and the association relationship between uplink reference signal resource sets also indicates that there is an association relationship between uplink reference signals that are simultaneously sent in the associated uplink reference signal resource sets; wherein the uplink reference signals having the association relationship share a same antenna port, and the same antenna port means that a channel over which a symbol on an antenna port is carried can be inferred from a signal over which another symbol on a same antenna port is carried; and phases of the uplink reference signals having the association relationship are continuous; and
sending the uplink reference signals having the association relationship.
9 . The method according to claim 8 , wherein the first configuration information further indicates that the uplink reference signals having the association relationship share the same antenna port or that the uplink reference signals having the association relationship have a phase difference.
10 . The method according to claim 8 , wherein a phase difference between the uplink reference signals having the association relationship is a fixed value.
11 . The method according to claim 9 , wherein the phase difference between the uplink reference signals having the association relationship is a fixed value.
12 . A method for associating uplink reference signals, comprising:
receiving second configuration information from a first network device, wherein the second configuration information indicates an association relationship between uplink reference signal resource sets on different carriers; and the association relationship between uplink reference signal resource sets also indicates that there is an association relationship between uplink reference signals that are simultaneously sent in the associated uplink reference signal resource sets; wherein the uplink reference signals having the association relationship share a same antenna port, and the same antenna port means that a channel over which a symbol on an antenna port is carried can be inferred from a signal over which another symbol on a same antenna port is carried; and phases of the uplink reference signals having the association relationship are continuous; and
sending third configuration information to a second network device, wherein the third configuration information indicates the association relationship between uplink reference signal resource sets on different carriers.
13 . The method according to claim 12 , wherein the second configuration information further indicates that the uplink reference signals having the association relationship share the same antenna port or that the uplink reference signals having the association relationship have a phase difference.
14 . The method according to claim 12 , wherein the third configuration information further indicates that the uplink reference signals having the association relationship share an antenna port or that the uplink reference signals having the association relationship have a phase difference.
15 . The method according to claim 12 , wherein a phase difference between the uplink reference signals having the association relationship is a fixed value.
16 . The method according to claim 13 , wherein the phase difference between the uplink reference signals having the association relationship is a fixed value.
17 . The method according to claim 14 , wherein the phase difference between the uplink reference signals having the association relationship is a fixed value.
18 . The method according to claim 12 , further comprising:
sending first information to the first network device;
wherein the first information is used to request the first network device to configure an uplink reference signal with a preset bandwidth, and the preset bandwidth is greater than 100 megahertz (MHz).
19 . The method according to claim 12 , further comprising:
receiving a measurement result from the second network device, wherein the measurement result is obtained by the second network device by measuring the uplink reference signals having the association relationship; and the measurement result includes indexes of resource sets in which the uplink reference signals having the association relationship are located and/or indexes of carriers on which the uplink reference signals having the association relationship are located.