Random access for wireless communication
First Claim
1. An apparatus for wireless communication, comprising:
- at least one processor configured to send a first message comprising power headroom information for system access by a user equipment (UE), to receive a second message comprising at least one parameter determined based on the power headroom information, and to send a third message based on the at least one parameter; and
a memory coupled to the at least one processor.
1 Assignment
0 Petitions
Accused Products
Abstract
Techniques for sending messages for system access are described. In one aspect, a user equipment (UE) sends a first message with power headroom and/or buffer size information for system access. A Node B determines at least one parameter (e.g., a resource grant, power control information, etc.) based on the power headroom and/or buffer size information. The Node B sends a second message with the parameter(s). The UE sends a third message based on the parameter(s), e.g., with uplink resources indicated by the resource grant, with transmit power determined based on the power control information, etc. In another aspect, the UE sends a radio environment report in the third message. The report may be used to select a cell and/or a frequency for the UE. In yet another aspect, the second message includes power control information, and the UE sends the third message based on the power control information.
-
Citations
38 Claims
-
1. An apparatus for wireless communication, comprising:
-
at least one processor configured to send a first message comprising power headroom information for system access by a user equipment (UE), to receive a second message comprising at least one parameter determined based on the power headroom information, and to send a third message based on the at least one parameter; and a memory coupled to the at least one processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for wireless communication, comprising:
-
sending a first message comprising power headroom information for system access by a user equipment (UE); receiving a second message comprising at least one parameter determined based on the power headroom information; and sending a third message based on the at least one parameter. - View Dependent Claims (11, 12, 13)
-
-
14. An apparatus for wireless communication, comprising:
-
means for sending a first message comprising power headroom information for system access by a user equipment (UE); means for receiving a second message comprising at least one parameter determined based on the power headroom information; and means for sending a third message based on the at least one parameter. - View Dependent Claims (15, 16, 17)
-
-
18. A machine-readable medium comprising instructions which, when executed by a machine, cause the machine to perform operations including:
-
sending a first message comprising power headroom information for system access by a user equipment (UE); receiving a second message comprising at least one parameter determined based on the power headroom information; and sending a third message based on the at least one parameter.
-
-
19. An apparatus for wireless communication, comprising:
-
at least one processor configured to receive a first message comprising power headroom information sent by a user equipment (UE) for system access, to determine at least one parameter based on the power headroom information, to send a second message comprising the at least one parameter, and to receive a third message sent by the UE based on the at least one parameter; and a memory coupled to the at least one processor. - View Dependent Claims (20, 21)
-
-
22. An apparatus for wireless communication, comprising:
-
at least one processor configured to perform a random access procedure for system access by a user equipment (UE), and to send a message comprising a radio environment report during the random access procedure; and a memory coupled to the at least one processor. - View Dependent Claims (23, 24, 25)
-
-
26. An apparatus for wireless communication, comprising:
-
at least one processor configured to receive a random access preamble sent by a user equipment (UE) for system access, to send a random access response to the UE, and to receive a message comprising a radio environment report from the UE; and a memory coupled to the at least one processor. - View Dependent Claims (27)
-
-
28. An apparatus for wireless communication, comprising:
-
at least one processor configured to send a first message for system access by a user equipment (UE), to receive a second message comprising power control information, and to send a third message with transmit power determined based on the power control information; and a memory coupled to the at least one processor. - View Dependent Claims (29, 30, 31, 32)
-
-
33. A method for wireless communication, comprising:
-
sending a first message for system access by a user equipment (UE); receiving a second message comprising power control information; and sending a third message with transmit power determined based on the power control information. - View Dependent Claims (34, 35)
-
-
36. An apparatus for wireless communication, comprising:
-
at least one processor configured to receive a first message sent by a user equipment (UE) for system access, to send a second message comprising power control information to the UE, and to receive a third message sent by the UE with transmit power determined based on the power control information; and a memory coupled to the at least one processor. - View Dependent Claims (37, 38)
-
Specification