Method and Apparatus For Receiving A Control Channel
First Claim
Patent Images
1. A method in a communication device, the method comprising:
- monitoring a first control channel;
receiving information from the network regarding a configuration of a second control channel;
during a random access procedure between the communication device and the network;
receiving an uplink grant from the network, andtransmitting a message to the network, the message including an indication that the communication device is capable of monitoring a second control channel;
monitoring the second control channel based on the received configuration information.
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Abstract
Various methods and apparatuses for receiving a control channel involve a communication device monitoring a first control and receiving information from a network regarding the configuration of a second control channel. The communication device receives an uplink grant from the network; transmits a message to the network, in which the message indicates to the network that the communication device is capable of monitoring the second control channel. The communication device monitors the second control channel based on the configuration information receiving via the first control channel.
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Citations
25 Claims
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1. A method in a communication device, the method comprising:
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monitoring a first control channel; receiving information from the network regarding a configuration of a second control channel; during a random access procedure between the communication device and the network; receiving an uplink grant from the network, and transmitting a message to the network, the message including an indication that the communication device is capable of monitoring a second control channel; monitoring the second control channel based on the received configuration information. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method in a communication device, the method comprising:
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receiving a transmission from a network; determining whether to use a first default transmission mode or a second default transmission mode based on the received transmission, wherein the first default transmission mode is associated with a first type of reference signal and the second default transmission mode is associated with a second type of reference signal; receiving data according to the determined first or second default transmission mode using the associated first or second type of reference signal. - View Dependent Claims (9, 10, 11, 12)
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13. A method for a communication device, the method comprising:
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requesting access to the network via a random access channel; receiving, in response to the request, an identifier to be used to identify the communication device to the network; determining whether the identifier falls into a recognized range; if, based on the determining step, the identifier falls within the recognized range, responding to the receipt of the identifier with a message, the message including an indication that the communication device is capable of monitoring a control channel. - View Dependent Claims (14)
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15. A method for a communication device to handover from a first cell to a second cell, the method comprising:
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receiving a handover message indicating that the communication device is to handover from the first cell to the second cell, the first and second cells operating on the same carrier frequency, wherein the handover message includes information regarding one or more of; information regarding time-frequency resources of a control channel of the second cell, wherein the frequency span of the time-frequency resources is smaller than the transmission bandwidth configuration of the second cell, an identification of a set of antenna ports to be used to communicate via a control channel of the second cell, and information regarding the energy per resource element of a control channel of the second cell; performing a handover from the first cell to the second cell; and receiving, via the said control channel, indication of resources for at least one of downlink and uplink transmissions. - View Dependent Claims (16, 17)
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18. A method for a communication device to transfer from a first cell to a second cell, the method comprising:
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monitoring a first type of control channel of the first cell; monitoring a second type of control channel of the first cell; receiving a handover message; in response to receiving the handover message, monitoring the first type of control channel of the second cell, wherein the handover message includes an indication of whether the communication device should monitor the second type of control channel of the second cell; and monitoring the second type of control channel of the second cell based on the indication.
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19. A method for a communication device to monitor control channels in a wireless network, the method comprising:
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during a first time interval, monitoring a first and a second control channel; receiving a scheduling message during the first time interval on either the first or the second control channel; if the scheduling message is received via the first control channel, monitoring the first control channel and not the second control channel for a second time interval, if the scheduling message is received via the second control channel, monitoring the second control channel and not the first control channel for the second time interval; wherein the first and second time intervals do not overlap. - View Dependent Claims (20, 21, 22)
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23. A communication device comprising:
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a processor; and a transceiver, wherein the processor and the transceiver cooperate to perform steps comprising; monitoring a first control channel; receiving information from the network regarding a configuration of a second control channel; during a random access procedure between the communication device and the network; receiving an uplink grant from the network, and transmitting a message to the network, the message including an indication that the communication device is capable of monitoring a second control channel; monitoring the second control channel based on the received configuration information.
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24. A communication device comprising:
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a processor; and a transceiver, wherein the processor and the transceiver cooperate to perform steps comprising; transmitting a random access preamble to the network; and receiving the uplink grant from the network in response to the random access preamble transmission.
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25. A communication device comprising:
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a processor; and a transceiver, wherein the processor and the transceiver cooperate to perform steps comprising; receiving a transmission from a network; determining whether to use a first default transmission mode or a second default transmission mode based on the received transmission, wherein the first transmission mode is associated with a first type of reference signal and the second default transmission mode is associated with a second type of reference signal; receiving data according to the determined first or second default transmission mode using the associated first or second type of reference signal.
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Specification