Time grid with time division duplex switching intervals

One or more non-transient computer-readable media comprising machine executable instructions arranged, when executed by one or more processors of an apparatus for communicating in a wireless communication network using a time division duplex (TDD) time grid, to:

• identify a subframe for receiving and/or transmitting data to another entity, the time grid defining a plurality of time periods within the subframe corresponding to a plurality of orthogonal frequency division multiplexing (OFDM) symbols;
• determine an allocation of time periods of the plurality of time periods to uplink and/or downlink communication with the other entity;
• identify a time period of the plurality of time periods to embed a switching interval for switching from receive mode to transmit mode or from transmit mode to receive mode according to the allocation, the time period to correspond to an OFDM symbol of the plurality of symbols;
• transmit to or receive from the other entity a message that includes an indication of the OFDM symbol, which is to be blanked, wherein a position of the OFDM symbol is semi-dynamic and negotiable between the apparatus and the other entity;
• and
• cause switching from receive mode to transmit mode or from transmit mode to receive mode during the switching interval.

An apparatus for use in a wireless communication network, comprising:

• transceiver circuitry to receive and/or transmit data to another entity in the network;
• and
• control circuitry to control the transceiver circuitry to receive and/or transmit the data according to a time division duplex (TDD) time grid, wherein the time grid defines a subframe or subframe block comprising a plurality of time periods corresponding to a plurality of orthogonal frequency division multiplexing (OFDM) symbols for receiving or transmitting the data and defines a plurality of symbol spacing times within the subframe or subframe block, each symbol spacing time of the plurality of spacing times coinciding with a start time of a symbol of the plurality of symbols,
• wherein the control circuitry is to control the apparatus to blank a first OFDM symbol of the plurality of OFDM symbols to provide a switching interval during a time period corresponding to the first OFDM symbol, the first OFDM symbol being associated with a first sampling frequency that is faster than a second sampling frequency associated with a second OFDM symbol of the plurality of OFDM symbols.