Configuration restriction for radio frequency operation for shortened transmission time interval patterns

Abstract

Methods, network nodes and wireless devices configured for resource allocation to a wireless device are disclosed. According to one aspect, a method includes selecting at least one of a common bandwidth scheme and a common power scheme. If the selected at least one scheme includes a common bandwidth scheme, a common bandwidth to be used by the wireless device for transmission of two data channels in two successive short transmission time intervals, sTTIs, that share a common demodulation reference signal, DMRS, is determined. An indication of the common bandwidth to the wireless device to enable the wireless device to set the bandwidth of the two data channels to a common bandwidth value is sent. If the selected at least one scheme includes a common power scheme, then a common power control command to control an output power to be set by the wireless device for two data channels in two successive sTTI, that share a common DMRS is determined. The common power control command to the wireless device to enable the wireless device to set the output power of the two data channels to a common power value is sent.

What is claimed is: 
     
         1 . A method in a network node for resource allocation for transmissions of a wireless device, the method comprising:
 determining a common bandwidth to be used by the wireless device for transmission of two channels in two successive transmission time intervals, TTIs, that share a common reference signal, RS;   sending an indication of the common bandwidth to the wireless device to enable the wireless device to set the bandwidth of the two channels to a common bandwidth value;   
       determining a common power control command to control an output power to be set by the wireless device for two channels in two successive TTIs, that share a common RS, and one of:
 the common power control command is based on a function of a power level available at the wireless device, the function being one of a maximum, a minimum and an average; 
 the common power control command is autonomously determined by the network node based on one of a pre-defined rule, statistics and historical data; and 
 the common power control command establishes a maximum power and instructs the wireless device not to exceed the maximum power when establishing the common power value; and 
 sending the common power control command to the wireless device to enable the wireless device to set the output power of the two channels to a common power value. 
 
     
     
         2 . The method of  claim 1 , wherein the channels transmitted in two successive TTIs are physical uplink shared channels, PUSCH. 
     
     
         3 . The method of  claim 1 , wherein the common bandwidth is greater than a bandwidth of one of the two channels having a greatest bandwidth. 
     
     
         4 . The method of  claim 1 , wherein the common bandwidth encompasses a combined bandwidth of the two successive short TTIs. 
     
     
         5 . The method of  claim 1 , wherein the common bandwidth is selected to ensure a same power per allocated resource block. 
     
     
         6 . The method of  claim 1 , wherein the indication of the common bandwidth includes a bandwidth of the RS that encompasses the bandwidth of the two successive TTIs. 
     
     
         7 . The method of  claim 1 , wherein the common power control command instructs the wireless device to set the output power of the two channels to a highest power of a plurality of power levels. 
     
     
         8 . The method of  claim 1 , wherein the common power control command is based on at least one of a signal level of a received uplink signal and a mapping between the common power control command to a change in phase of a received uplink signal. 
     
     
         9 . The method of  claim 1 , wherein the RS is any of a demodulation reference signal, DMRS, and a sounding reference signal, SRS. 
     
     
         10 . A network node for resource allocation for transmissions of a wireless device, the network node comprising:
 processing circuitry configured to:
 determine a common bandwidth to be used by the wireless device for transmission of two channels in two successive transmission time intervals, TTIs, that share a common reference signal, RS; 
 send an indication of the common bandwidth to the wireless device to enable the wireless device to set the bandwidth of the two channels to a common bandwidth value; 
   determine a common power control command to control an output power to be set by the wireless device for two channels in two successive TTIs that share a common RS, and one of:
 the common power control command is based on a function of a power level available at the wireless device, the function being one of a maximum, a minimum and an average; 
 the common power control command is autonomously determined by the network node based on one of a pre-defined rule, statistics and historical data; and
 the common power control command establishes a maximum power and instructs the wireless device not to exceed the maximum power when establishing the common power value; and 
 
 send the common power control command to the wireless device to enable the wireless device to set the output power of the two channels to a common power value. 
   
     
     
         11 . The network node of  claim 10 , wherein the two channels transmitted in two successive sTTIs are physical uplink shared channels, PUSCH. 
     
     
         12 . The network node of  claim 10 , wherein the common bandwidth is greater than a bandwidth of one of the two channels having a greatest bandwidth. 
     
     
         13 . The network node of  claim 10 , wherein the common bandwidth encompasses a combined bandwidth of the two successive TTIs. 
     
     
         14 . The network node of  claim 10 , wherein the common bandwidth is selected to ensure a same power per allocated resource block. 
     
     
         15 . A method in a wireless device for uplink transmission of signals, the method comprising:
 receiving a bandwidth indication and a common power control command, the common power control is one of:
 based on a function of a power level available at the wireless device, the function being one of a maximum, a minimum and an average; 
 autonomously determined by the network node based on one of a pre-defined rule, statistics and historical data; and 
 establishing a maximum power and instructing the wireless device not to exceed the maximum power when establishing the common power value; 
   determining a common bandwidth based on the bandwidth indication to be used by the wireless device for transmission of two channels in two successive transmission time intervals, TTIs, that share a common reference signal, RS; and   controlling an output power based on the common power control command to be set by the wireless device for two channels in two successive TTIs that share a common RS.   
     
     
         16 . The method of  claim 15 , wherein the two channels are physical uplink shared channels, PUSCH. 
     
     
         17 . The method of  claim 15 , wherein the common bandwidth encompasses a combined bandwidth of the two successive TTIs. 
     
     
         18 . The method of  claim 15 , wherein the common bandwidth is selected to ensure a same power per allocated resource block. 
     
     
         19 . The method of  claim 15 , wherein a TTI is any of: a short TTI, sTTI, slot, and a mini-slot. 
     
     
         20 . The method of  claim 15 , wherein the RS is any of a demodulation reference signal, DMRS, and a sounding reference signal, SRS.