Identification of a wireless device with reduced capabilities
Systems, apparatuses, and methods are described for wireless communications. A wireless device may initiate a random access process comprising transmitting a transport block comprising data of a CCCH logical channel. The CCCH logical channel may be associated with an identifier indicating that the wireless device is a reduced capability wireless device.
1. A method comprising:
receiving, by a wireless device, one or more first random access parameters;
initiating, based on the one or more first random access parameters, a random access process comprising:
transmitting a random access preamble using a random access occasion; and
transmitting a transport block comprising data of a common control channel (CCCH) logical channel, wherein:
the CCCH logical channel is associated with an identifier;
the identifier indicates that the wireless device is a reduced capability wireless device; and
the reduced capability wireless device is associated with reduced capabilities compared to a non-reduced capability wireless device;
receiving scheduling information via a downlink control information that is associated with a first radio network temporary identifier.
2. The method of claim 1 , wherein the reduced capabilities comprise one or more of:
a reduced bandwidth;
a reduced number of antennas;
a half-duplex operation;
a relaxed processing time; and
a relaxed processing capability.
3. The method of claim 1 , wherein receiving the one or more first random access parameters is based on a system information block message.
4. The method of claim 1 , wherein the wireless device is in a radio resource control (RRC) idle state.
5. The method of claim 1 , wherein the CCCH logical channel is associated with a RRC setup request message.
6. The method of claim 1 , wherein the one or more first random access parameters are for reduced capability wireless devices.
7. The method of claim 6 , further comprising receiving one or more second random access parameters that are for non-reduced capability wireless devices.
8. The method of claim 1 , wherein the first radio network temporary identifier is determined based on the random access process.
9. The method of claim 1 , wherein the random access process further comprises receiving a random access response.
10. The method of claim 9 , wherein the random access response comprises an uplink grant for the transport block.
11. A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive one or more first random access parameters;
initiate, based on the one or more first random access parameters, a random access process comprising:
transmitting a random access preamble using a random access occasion; and
transmitting a transport block comprising data of a common control channel (CCCH) logical channel, wherein:
the CCCH logical channel is associated with an identifier;
the identifier indicates that the wireless device is a reduced capability wireless device; and
the reduced capability wireless device is associated with reduced capabilities compared to a non-reduced capability wireless device;
receive scheduling information via a downlink control information that is associated with a first radio network temporary identifier.
12. The wireless device of claim 11 , wherein the reduced capabilities comprise one or more of:
a reduced bandwidth;
a reduced number of antennas;
a half-duplex operation;
a relaxed processing time; and
a relaxed processing capability.
13. The wireless device of claim 11 , wherein receiving the one or more first random access parameters is based on a system information block message.
14. The wireless device of claim 11 , wherein the wireless device is in a radio resource control (RRC) idle state.
15. The wireless device of claim 11 , wherein the CCCH logical channel is associated with a RRC setup request message.
16. The wireless device of claim 11 , wherein the one or more first random access parameters are for wireless devices with reduced capability.
17. The wireless device of claim 16 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to receive one or more second random access parameters that are for non-reduced capability wireless devices.
18. The wireless device of claim 11 , wherein the first radio network temporary identifier is determined based on the random access process.
19. The wireless device of claim 11 , wherein the random access process further comprises receiving a random access response comprising an uplink grant for the transport block.
20. A system comprising:
a base station; and
a wireless device comprising: one or more processors; and memory storing instructions that, when executed by the one or more processors, cause the wireless device to: receive, from the base station, one or more random access parameters; initiate, based on the one or more random access parameters, a random access process comprising: transmitting a random access preamble using a random access occasion; and transmitting a transport block comprising data of a common control channel (CCCH) logical channel, wherein: the CCCH logical channel is associated with an identifier; the identifier indicates that the wireless device is a reduced capability wireless device; and the reduced capability wireless device is associated with reduced capabilities compared to a non-reduced capability wireless device; receive scheduling information via a downlink control information that is associated with a first radio network temporary identifier.