Method and apparatus for communicating downlink control information in an asymmetric multicarrier communication network environment
First Claim
1. A method for communicating downlink control information (DCI) in an asymmetric multicarrier communication network environment, the method comprising:
- identifying a carrier type, of a plurality of carrier types, related to DCI to be transmitted to a mobile station, the plurality of carrier types including a primary carrier, a symmetric secondary carrier, and an asymmetric secondary carrier;
encoding the DCI in one of sets of fields of a DCI format based on whether the identified carrier type is the asymmetric secondary carrier or not, the DCI format comprising the sets of fields related to the plurality of carrier types; and
transmitting the encoded DCI to the mobile station on a downlink control channel,wherein the DCI format further comprises a carrier index field indicating the identified carrier type, andwherein each of frequencies of the primary carrier and the symmetric secondary carrier is lower than a frequency of the asymmetric secondary carrier.
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Accused Products
Abstract
A method for communicating Downlink Control Information (DCI) in an asymmetric multicarrier communication network environment, the method comprising: determining a carrier type corresponding to DCI to be transmitted to a mobile station from a plurality of carrier types, encoding the DCI in a DCI format, wherein the DCI format comprises a set of fields corresponding to the determined carrier type, and transmitting the DCI encoded in the DCI format to the mobile station through a downlink control channel on a primary carrier, wherein the DCI format comprises a carrier index field indicating type of the fields in the DCI format encoding the DCI and the carrier type corresponding to the encoded DCI.
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Citations
37 Claims
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1. A method for communicating downlink control information (DCI) in an asymmetric multicarrier communication network environment, the method comprising:
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identifying a carrier type, of a plurality of carrier types, related to DCI to be transmitted to a mobile station, the plurality of carrier types including a primary carrier, a symmetric secondary carrier, and an asymmetric secondary carrier; encoding the DCI in one of sets of fields of a DCI format based on whether the identified carrier type is the asymmetric secondary carrier or not, the DCI format comprising the sets of fields related to the plurality of carrier types; and transmitting the encoded DCI to the mobile station on a downlink control channel, wherein the DCI format further comprises a carrier index field indicating the identified carrier type, and wherein each of frequencies of the primary carrier and the symmetric secondary carrier is lower than a frequency of the asymmetric secondary carrier. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus comprising:
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a processor; and a memory communicatively coupled to the processor, wherein the processor is configured to; identify a carrier type, of a plurality of carrier types, related to downlink control information (DCI) to be transmitted to a mobile station, wherein the plurality of carrier types include a primary carrier, a symmetric secondary carrier, and an asymmetric secondary carrier, encode the DCI in one of sets of fields of a DCI format based on whether the identified carrier type is the asymmetric secondary carrier or not, wherein the DCI format comprises the sets of fields related to the identified carrier type, and transmit the encoded DCI to the mobile station based on a downlink control channel, wherein the encoded DCI format further comprises a carrier index field setting carrier index, wherein the carrier index indicates the identified carrier type, and wherein each of frequencies of the primary carrier and the symmetric secondary carrier is lower than a frequency of the asymmetric secondary carrier. - View Dependent Claims (7)
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8. A method for communicating downlink control information (DCI) in an asymmetric multicarrier communication network environment, the method comprising:
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identifying a carrier type, of a plurality of carrier types, related to DCI to be transmitted to a mobile station, the plurality of carrier types including a primary carrier, a symmetric secondary carrier, and an asymmetric secondary carrier; encoding the DCI in one of sets of fields of a DCI format based on whether the identified carrier type is the asymmetric secondary carrier or not, the DCI format comprising the sets of fields related to the identified carrier type; generating a cyclic redundancy check (CRC) value of a downlink control channel in which the encoded DCI is to be transmitted; masking the CRC value based on one of a plurality of temporary mobile station identifiers related to the identified carrier type; and transmitting the encoded DCI with the masked CRC value on the downlink control channel to the mobile station, wherein each of frequencies of the primary carrier and the symmetric secondary carrier is lower than a frequency of the asymmetric secondary carrier. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An apparatus comprising:
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a processor; and a memory communicatively coupled to the processor, wherein the processor is configured to; identify a carrier type, of a plurality of carrier types, related to downlink control information (DCI) to be transmitted to a mobile station, the plurality of carrier types including a primary carrier, a symmetric secondary carrier, and an asymmetric secondary carrier, encode the DCI in one of sets of fields of a DCI format based on whether the identified carrier type is the asymmetric secondary carrier or not, the DCI format comprising the sets of fields related to the identified carrier type, generate a cyclic redundancy check (CRC) value of a downlink control channel in which the encoded DCI is to be transmitted, mask the CRC value based on one of a plurality of temporary mobile station identifiers related to the identified carrier type, and transmit the encoded DCI with the masked CRC value on the downlink control channel to the mobile station, and wherein each of frequencies of the primary carrier and the symmetric secondary carrier is lower than a frequency of the asymmetric secondary carrier. - View Dependent Claims (15, 16, 17)
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18. A method for decoding downlink control information (DCI) in an asymmetric multicarrier communication network environment, the method comprising:
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receiving a downlink control channel carrying unicast DCI on a primary carrier; decoding the downlink control channel carrying the unicast DCI; identifying whether the unicast DCI in the decoded downlink control channel relates to an asymmetric secondary carrier; processing the unicast DCI based on a DCI format comprising fields related to the asymmetric secondary carrier, if the unicast DCI relates to the asymmetric secondary carrier; and processing the unicast DCI based on a DCI format comprising fields related to the primary carrier or a symmetric secondary carrier, if the unicast DCI does not relate to the asymmetric secondary carrier, wherein the unicast DCI is encoded in one of sets of fields of the DCI format based on whether a type of carrier carrying the downlink control channel is the asymmetric secondary carrier or not, and wherein each of frequencies of the primary carrier and the symmetric secondary carrier is lower than a frequency of the asymmetric secondary carrier. - View Dependent Claims (19, 20, 21)
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22. An apparatus comprising:
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a processor; and a memory communicatively coupled to the processor, wherein the processor is configured to; receive a downlink control channel carrying unicast downlink control information (DCI) on a primary carrier, decode the downlink control channel carrying the unicast DCI, identify whether the unicast DCI in the decoded downlink control channel relates to an asymmetric secondary carrier, process the unicast DCI based on a DCI format comprising fields related to the asymmetric secondary carrier, if the unicast DCI relates to the asymmetric secondary carrier, and process the unicast DCI based on a DCI format comprising fields related to the primary carrier or a symmetric secondary carrier, if the unicast DCI does not relate to the asymmetric secondary carrier, wherein the unicast DCI is encoded in one of sets of fields of the DCI format based on whether a type of carrier carrying the downlink control channel is the asymmetric secondary carrier or not, and wherein each of frequencies of the primary carrier and the symmetric secondary carrier is lower than a frequency of the asymmetric secondary carrier. - View Dependent Claims (23, 24, 25)
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26. A method for communicating downlink control information (DCI) in an asymmetric multicarrier communication network environment, the method comprising:
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generating unicast DCI for transmitting the unicast DCI to a mobile station; transmitting a downlink control channel carrying the unicast DCI on a primary carrier in a first control region of a subframe, if the DCI relates to one of the primary carrier or a symmetric secondary carrier; and transmitting a downlink control channel carrying the unicast DCI on the primary carrier in a second control region, if the unicast DCI relates to an asymmetric secondary carrier, wherein each of frequencies of the primary carrier and the symmetric secondary carrier is lower than a frequency of the asymmetric secondary carrier. - View Dependent Claims (27)
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28. An apparatus comprising:
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a processor; and a memory communicatively coupled to the processor, wherein the processor is configured to; generate unicast downlink control information (DCI) for transmitting to a mobile station, transmit a downlink control channel carrying the unicast DCI on a primary carrier in a first control region of a subframe, if the DCI relates to one of a primary carrier or a symmetric secondary carrier, and transmit a downlink control channel carrying the unicast DCI on the primary carrier in a second control region, if the unicast DCI relates to an asymmetric secondary carrier, and wherein each of frequencies of the primary carrier and the symmetric secondary carrier is lower than a frequency of the asymmetric secondary carrier. - View Dependent Claims (29)
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30. A method for communicating downlink control information (DCI) in an asymmetric multicarrier communication network environment, the asymmetric multicarrier communication network environment comprising a primary carrier, a symmetric secondary carrier, and an asymmetric secondary carrier, the method comprising:
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transmitting a first downlink control channel carrying a new DCI in a legacy packet data control channel (PDCCH) region on the primary carrier, the new DCI indicating a location of at least one control region in a downlink transport channel region of a subframe; and transmitting a second downlink control channel carrying unicast DCI on the primary carrier in the control region of the downlink transport channel, wherein each of frequencies of the primary carrier and the symmetric secondary carrier is lower than a frequency of the asymmetric secondary carrier. - View Dependent Claims (31, 32, 33)
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34. An apparatus in an asymmetric multicarrier communication network environment, the asymmetric multicarrier communication network environment comprising a primary carrier, a symmetric secondary carrier, and an asymmetric secondary carrier, the apparatus comprising:
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a processor; and a memory communicatively coupled to the processor, wherein the processor is configured to; transmit a first downlink control channel carrying a new downlink control information (DCI) in a legacy packet data control channel (PDCCH) region on the primary carrier, the new DCI indicating a location of at least one control region in a downlink transport channel region of a subframe, and transmit a second downlink control channel carrying unicast DCI on the primary carrier in the control region of the downlink transport channel, and wherein each of frequencies of the primary carrier and the symmetric secondary carrier is lower than a frequency of the asymmetric secondary carrier. - View Dependent Claims (35, 36, 37)
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Specification