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, system information indicating one or more first random access parameters;
initiating, by the wireless device and based on the one or more first random access parameters, a random access process comprising:
transmitting a transport block comprising a radio resource control (RRC) setup request message, wherein:
the RRC setup request message is associated with an identity;
the identity 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.
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 the identity is based on a wireless device type.
4. The method of claim 1 , wherein the one or more first random access parameters are for reduced capability wireless devices.
5. The method of claim 1 , wherein the receiving the one or more first random access parameters is based on a system information block message.
6. The method of claim 1 , further comprising receiving one or more second random access parameters that are for non-reduced capability wireless devices.
7. The method of claim 1 , wherein the RRC setup request message is associated with a common control channel (CCCH) logical channel.
8. 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 system information indicating 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 transport block comprising a radio resource control (RRC) setup request message, wherein:
the RRC setup request message is associated with an identity;
the identity 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.
9. The wireless device of claim 8 , 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.
10. The wireless device of claim 8 , wherein the identity is based on a wireless device type.
11. The wireless device of claim 8 , wherein the one or more first random access parameters are for reduced capability wireless devices.
12. The wireless device of claim 8 , wherein receiving the one or more first random access parameters is based on a system information block message.
13. The wireless device of claim 8 , 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.
14. The wireless device of claim 8 , wherein the RRC setup request message is associated with a common control channel (CCCH) logical channel.
15. 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, system information indicating 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 transport block comprising a radio resource control (RRC) setup request message, wherein: the RRC setup request message is associated with an identity; the identity 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.
16. The system of claim 15 , 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.
17. The system of claim 15 , wherein the identity is based on a wireless device type.
18. The system of claim 15 , wherein the one or more first random access parameters are for reduced capability wireless devices.
19. The system of claim 15 , wherein receiving the one or more first random access parameters is based on a system information block message.
20. The system of claim 15 , wherein the RRC setup request message is associated with a common control channel (CCCH) logical channel.