Request to store information for a plurality of cells
An example of this disclosure provides a method ( 500 ) performed by a base station control unit (CU). The method comprises receiving ( 502 ) a request from a base station distributed unit (DU) to store information for a first plurality of cells to be served by the base station DU. The method also comprises sending ( 504 ) a response to the base station DU, wherein the response indicates that storing information for the first plurality of cells would exceed a maximum number of cells that can be stored by the base station CU.
1 . A method performed by a base station control unit (CU), the method comprising:
receiving a request from a base station distributed unit (DU) to store information for a first plurality of cells to be served by the base station DU; and
sending a response to the base station DU, wherein the response indicates that storing information for the first plurality of cells would exceed a maximum number of cells that can be stored by the base station CU.
2 . The method of claim 1 , wherein the response indicates that storing information for the first plurality of cells would exceed the maximum number of cells that can be stored by the base station CU by indicating a maximum number of cells for which information can be stored by the base station CU and/or by indicating a maximum number of cells that can be added to a list of cells for which information can be stored by the base station CU.
3 . The method of claim 1 , comprising, after sending the response to the base station DU, receiving a further request from the base station DU to store information for a second plurality of cells to be served by the base station DU, wherein the second plurality of cells comprises a subset of the first plurality of cells, and storing the information for the second plurality of cells.
4 . The method of claim 3 , wherein the response indicates failure of the request to store the information for the first plurality of cells.
5 . The method of claim 4 , wherein the response comprises a F1 SETUP FAILURE or GNB-DU CONFIGURATION UPDATE FAILURE message.
6 . The method of claim 1 , comprising storing information for a subset of the first plurality of cells, and wherein the response identifies the subset of the first plurality of cells and/or identifies cells of the first plurality of cells for which information is not stored by the base station CU.
7 . The method of claim 6 , wherein the response includes an instruction to the base station DU to activate the cells in the subset of the first plurality of cells.
8 . A method performed by a base station distributed unit (DU), the method comprising:
sending a request to a base station control unit (CU) to store information for a first plurality of cells to be served by the base station DU; and
receiving a response from the base station CU, wherein the response indicates that storing information for the first plurality of cells would exceed a maximum number of cells that can be stored by the base station CU.
9 . The method of claim 8 , wherein the response indicates that storing information for the first plurality of cells would exceed the maximum number of cells that can be stored by the base station CU by indicating a maximum number of cells for which information can be stored by the base station CU and/or by indicating a maximum number of cells that can be added to a list of cells for which information can be stored by the base station CU.
10 . The method of claim 9 , comprising, after receiving the response from the base station CU, sending a further request to the base station CU to store information for a second plurality of cells to be served by the base station DU, wherein the second plurality of cells comprises a subset of the first plurality of cells.
11 . The method of claim 10 , wherein the response indicates failure of the request to store the information for the first plurality of cells.
12 . The method of claim 8 , wherein the response identifies a subset of the first plurality of cells for which information is stored by the base station CU and/or identifies cells of the first plurality of cells for which information is not stored by the base station CU.
13 . The method of claim 12 , wherein the response comprises a F1 SETUP RESPONSE or GNB-DU CONFIGURATION UPDATE ACKNOWLEDGE message.
14 . The method of claim 12 , wherein the response includes an instruction from the base station CU to activate the cells in the subset of the first plurality of cells.
15 . An apparatus in a base station control unit (CU), the apparatus comprising a processor and a memory, the memory containing instructions executable by the processor such that the apparatus is operable to:
receive a request from a base station distributed unit (DU) to store information for a first plurality of cells to be served by the base station DU; and
send a response to the base station DU, wherein the response indicates that storing information for the first plurality of cells would exceed a maximum number of cells that can be stored by the base station CU.
16 . The apparatus of claim 15 , wherein the response indicates that storing information for the first plurality of cells would exceed the maximum number of cells that can be stored by the base station CU by indicating a maximum number of cells for which information can be stored by the base station CU and/or by indicating a maximum number of cells that can be added to a list of cells for which information can be stored by the base station CU.
17 . The apparatus of claim 16 , wherein the memory further contains instructions to, after sending the response to the base station DU, receive a further request from the base station DU to store information for a second plurality of cells to be served by the base station DU, wherein the second plurality of cells comprises a subset of the first plurality of cells, and storing the information for the second plurality of cells.
18 . The apparatus of claim 15 , wherein the memory further contains instructions to store information for a subset of the first plurality of cells, and wherein the response identifies the subset of the first plurality of cells and/or identifies cells of the first plurality of cells for which information is not stored by the base station CU.
19 . The apparatus of claim 18 , wherein the response includes an instruction to the base station DU to activate the cells in the subset of the first plurality of cells.
20 . An apparatus in a base station distributed unit (DU), the apparatus comprising a processor and a memory, the memory containing instructions executable by the processor such that the apparatus is operable to:
send a request to a base station control unit (CU) to store information for a first plurality of cells to be served by the base station DU; and
receive a response from the base station CU, wherein the response indicates that storing information for the first plurality of cells would exceed a maximum number of cells that can be stored by the base station CU.
21 . The apparatus of claim 20 , wherein the response indicates that storing information for the first plurality of cells would exceed the maximum number of cells that can be stored by the base station CU by indicating a maximum number of cells for which information can be stored by the base station CU and/or by indicating a maximum number of cells that can be added to a list of cells for which information can be stored by the base station CU.
22 . The apparatus of claim 21 , wherein the memory further contains instructions to, after receiving the response from the base station CU, send a further request to the base station CU to store information for a second plurality of cells to be served by the base station DU, wherein the second plurality of cells comprises a subset of the first plurality of cells.
23 . The apparatus of claim 20 , wherein the response identifies a subset of the first plurality of cells for which information is stored by the base station CU and/or identifies cells of the first plurality of cells for which information is not stored by the base station CU.
24 . The apparatus of claim 23 , wherein the response includes an instruction from the base station CU to activate the cells in the subset of the first plurality of cells.