Dynamic additional demodulation reference signal configuration

A method, comprising:

• after attaching to a base station that is configured to facilitate broadband cellular communications, receiving, by a system comprising a processor, a first medium access control control element message from the base station indicative of a first number of demodulation reference signal positions that was established as part of a connection setup being modified to a second number of demodulation reference signal positions with respect to a primary cell, wherein the broadband cellular communications are facilitated with carrier aggregation of the primary cell and a secondary cell;
• receiving, by the system, a second medium access control control element message from the base station indicative of the first number of demodulation reference signal positions being modified to the second number of demodulation reference signal positions with respect to the secondary cell;
• and
• conducting, by the system, the broadband cellular communications with the base station according to the second number of demodulation reference signal positions.

A non-transitory computer-readable medium comprising instructions that, in response to execution, cause a system comprising a processor to perform operations, comprising:

• after attaching to base station equipment that is configured to facilitate broadband cellular communications, receiving a first medium access control control element message from the base station equipment indicative of a modified number of demodulation reference signal positions that was established as part of a connection setup with respect to a primary cell, wherein the broadband cellular communications are facilitated with carrier aggregation of the primary cell and a secondary cell;
• receiving a second medium access control control element message from the base station equipment indicative of the modified number of demodulation reference signal positions with respect to the secondary cell;
• and
• conducting the broadband cellular communications with the base station equipment according to the modified number of demodulation reference signal positions.