Methods and apparatus for communicating control information
First Claim
1. A method of operating a base station, comprising:
- transmitting information indicating the mode of control channel operation in which wireless terminals are to operate;
recovering modulation symbols communicated using a first information-bit-to-modulation-symbol mapping procedure when said modulation symbols are received from a wireless terminal operating in a first mode of control channel operation; and
recovering modulation symbols communicated using a second information-bit-to-modulation-symbol mapping procedure when said modulation symbols are received from said wireless terminal operating in a second mode of control channel operation during which said wireless terminal has a different amount of control channel resources than said wireless terminal has during said first mode of control channel operation.
1 Assignment
0 Petitions
Accused Products
Abstract
In a first mode of dedicated control channel (DCCH) operation, a wireless terminal is allocated more segments than in a second mode. The wireless terminal uses different information bit to modulation symbol mapping in the different modes. On a per DCCH segment basis, the same number of modulation symbols are communicated in either mode but more information bits are conveyed in the second mode. Information bits for a DCCH segment are partitioned into two subsets. The two subsets are used to generate another set, each of the two subsets and the another set are input to the same mapping function to generate three equal size sets of modulation symbols which are transmitted via the DCCH segment. Uplink tone hopping is used such that one of the equal size sets of modulation symbols for the DCCH segment uses the same tone but a different set uses a different tone.
495 Citations
36 Claims
-
1. A method of operating a base station, comprising:
-
transmitting information indicating the mode of control channel operation in which wireless terminals are to operate; recovering modulation symbols communicated using a first information-bit-to-modulation-symbol mapping procedure when said modulation symbols are received from a wireless terminal operating in a first mode of control channel operation; and recovering modulation symbols communicated using a second information-bit-to-modulation-symbol mapping procedure when said modulation symbols are received from said wireless terminal operating in a second mode of control channel operation during which said wireless terminal has a different amount of control channel resources than said wireless terminal has during said first mode of control channel operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A base station, comprising:
-
means for transmitting information indicating the mode of control channel operation in which wireless terminals are to operate; means for recovering modulation symbols communicated using a first information-bit-to-modulation-symbol mapping procedure when said modulation symbols are received from a wireless terminal operating in a first mode of control channel operation; and means for recovering modulation symbols communicated using a second information-bit-to-modulation-symbol mapping procedure when said modulation symbols are received from said wireless terminal operating in a second mode of control channel operation during which said wireless terminal has a different amount of control channel resources than said wireless terminal has during said first mode of control channel operation. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A base station, comprising:
-
a transmitter for transmitting information indicating the mode of control channel operation in which wireless terminals are to operate; a first modulation symbol recovery module for recovering modulation symbols communicated using a information-bit-to-modulation-symbol mapping procedure when said modulation symbols are received from a wireless terminal operating in a first mode of control channel operation; and a second modulation symbol recovery module recovering modulation symbols communicated using a second information-bit-to-modulation-symbol mapping procedure when said modulation symbols are received from said wireless terminal operating in a second mode of control channel operation during which said wireless terminal has a different amount of control channel resources than said wireless terminal has during said first mode of control channel operation. - View Dependent Claims (20, 21, 22, 23, 24)
-
-
25. A non-transitory computer readable medium embodying machine executable instructions for controlling a base station the computer readable medium comprising:
-
instructions for transmitting information indicating the mode of control channel operation in which wireless terminals are to operate; instructions for recovering modulation symbols communicated using a information-bit-to-modulation-symbol mapping procedure when said modulation symbols are received from a wireless terminal operating in a first mode of control channel operation; and instructions for recovering modulation symbols communicated using a second information-bit-to-modulation-symbol mapping procedure when said modulation symbols are received from said wireless terminal operating in a second mode of control channel operation during which said wireless terminal has a different amount of control channel resources than said wireless terminal has during said first mode of control channel operation. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33)
-
-
34. An apparatus operable in a communication system, the apparatus comprising:
-
a transmitter for transmitting information indicating the mode of control channel operation in which wireless terminals are to operate; and a processor configured to; recover modulation symbols communicated using a first information-bit-to-modulation-symbol mapping procedure when said modulation symbols are received from a wireless terminal operating in a first mode of control channel operation; and recover modulation symbols communicated using a second information-bit-to-modulation-symbol mapping procedure when said modulation symbols are received from said wireless terminal operating in a second mode of control channel operation during which said wireless terminal has a different amount of control channel resources than said wireless terminal has during said first mode of control channel operation. - View Dependent Claims (35, 36)
-
Specification