Method, computer program and apparatus for transmission signal rank determination
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsClaes Tidestav, Johan Hultell
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Abstract
The present disclosure relates to a method (20) for transmission signal rank determination performed in a base station node (3) of a communication system (1). The base station node (3) serves a first cell (9) and the first cell (9) has a neighboring cell (8) served by a neighboring base station node (2). The base station node (3) is configured for multiple-input, multiple output communication with a first wireless device (7). The method (20) comprises receiving (21), from a node (2); (10) of the communication system (1), information related to the neighboring cell (8), and determining (22), based on the received information, a signal rank of a data transmission to the first wireless device (7) located within the first cell (9).
Claims13
A method for transmission signal rank determination performed in a base station node of a communication system, the base station node serving a first cell and the first cell having a neighboring cell served by a neighboring base station node, the base station node being configured for multiple-input, multiple output communication with a first wireless device, the method comprising:
- receiving, from a node of the communication system, information related to the neighboring cell, wherein the information comprises active status of a second wireless device in the neighboring cell, the second wireless device being able to suppress interference of rank n, and wherein the information further comprises information on the neighboring base station node scheduling a transmission in the neighboring cell,
- determining, based on the received information, a signal rank of a data transmission to the first wireless device located within the first cell,
- wherein the determining of the signal rank of the data transmission to the first wireless device located within the first cell comprises determining the transmission signal rank to be less than n, and
- increasing the signal rank of the data transmission to the first wireless device after the neighboring base station node has completed a scheduled transmission in the neighboring cell.
A base station node in a communication system for transmission signal rank determination, the base station node being configured to serve a first cell and the first cell having a neighboring cell served by a neighboring base station node, the base station node being configured for multiple-input, multiple-output communication with a first wireless device, the base station node comprising:
- an input device configured to receive, from a node of the communication system, information related to the neighboring cell, wherein the information comprises active status of a second wireless device in the neighboring cell, the second wireless device being able to suppress interference of rank n, and wherein the information further comprises information on the neighboring base station node scheduling a transmission in the neighboring cell, and a processor, in operative communication with the input device, configured to:
- determine, based on the received information, a signal rank of a data transmission to the first wireless device located within the first cell, wherein to determine the signal rank of the data transmission to the first wireless device located within the first cell, the processor is further configured to determine the transmission signal rank to be less than n, and
- increase the signal rank of the data transmission to the first wireless device after the neighboring base station node has completed a scheduled transmission in the neighboring cell.
A computer program for a base station node of a communication system for transmission signal rank determination, the base station node being configured to serve a first cell and the first cell having a neighboring cell served by a neighboring base station node, the base station node being configured for multiple-input, multiple output communication with a first wireless device, the computer program comprising computer program code, which, when run on a processor of the base station node, causes the processor to perform the steps of:
- receiving, from a node of the communication system, information related to the neighboring cell, wherein the information comprises active status of a second wireless device in the neighboring cell, the second wireless device being able to suppress interference of rank n, and wherein the information further comprises information on the neighboring base station node scheduling a transmission in the neighboring cell,
- determining, based on the received information, a signal rank of a data transmission to the first wireless device located within the first cell, wherein the determining of the signal rank of the data transmission to the first wireless device located within the first cell comprises determining the transmission signal rank to be less than n, and
- increasing the signal rank of the data transmission to the first wireless device after the neighboring base station node has completed a scheduled transmission in the neighboring cell.
Dependencies are inferred from the claim text.