Carrier configuration in a wireless device, base station, and network
First Claim
Patent Images
1. A method comprising:
- a) transmitting, by a base station configured to communicate employing a plurality of carriers, at least one radio resource control message to a wireless device in a plurality of wireless devices, said at least one radio resource control message;
i) configured to cause in said wireless device;
(1) configuration of at least one second carrier in said plurality of carriers; and
(2) assignment of each of said at least one second carrier to a carrier group in a plurality of carrier groups, said plurality of carrier groups comprising;
(a) a first carrier group comprising a first subset of said plurality of carriers, said first subset comprising a first carrier, uplink transmissions by said wireless device in said first carrier group employing a first synchronization signal transmitted on said first carrier; and
(b) at least one second carrier group, a second carrier group in said at least one second carrier group comprising a second subset of said at least one second carrier, said second subset comprising a reference second carrier, uplink transmissions in said second carrier group employing a second synchronization signal on said reference second carrier as a second timing reference; and
ii) comprising a plurality of parameters specific to said wireless device, for each of said at least one second carrier;
(1) if said plurality of parameters comprise a carrier group index for said second carrier, assigning said second carrier to one of said at least one second carrier group identified by said carrier group index; and
(2) otherwise, assigning said second carrier to said first carrier group;
b) transmitting, by said base station, a control command configured to cause transmission of a random access preamble on random access resources of a second carrier in said second carrier group; and
c) transmitting, by said base station, a random access response on said first carrier, said random access response comprising a timing alignment command for said second carrier group.
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Accused Products
Abstract
A base station transmits radio resource control message(s) to a wireless device configuring second carrier(s). Each of the second carrier(s) is assigned to a carrier group in a plurality of carrier groups comprising a first carrier group and at least one second carrier group. The control message(s) comprise parameters. If parameters comprise a carrier group index for the second carrier, the wireless device assigns the second carrier to one of the at least one second carrier group identified by the carrier group index. Otherwise, the wireless device assigns the second carrier to the first carrier group.
89 Citations
20 Claims
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1. A method comprising:
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a) transmitting, by a base station configured to communicate employing a plurality of carriers, at least one radio resource control message to a wireless device in a plurality of wireless devices, said at least one radio resource control message; i) configured to cause in said wireless device; (1) configuration of at least one second carrier in said plurality of carriers; and (2) assignment of each of said at least one second carrier to a carrier group in a plurality of carrier groups, said plurality of carrier groups comprising; (a) a first carrier group comprising a first subset of said plurality of carriers, said first subset comprising a first carrier, uplink transmissions by said wireless device in said first carrier group employing a first synchronization signal transmitted on said first carrier; and (b) at least one second carrier group, a second carrier group in said at least one second carrier group comprising a second subset of said at least one second carrier, said second subset comprising a reference second carrier, uplink transmissions in said second carrier group employing a second synchronization signal on said reference second carrier as a second timing reference; and ii) comprising a plurality of parameters specific to said wireless device, for each of said at least one second carrier; (1) if said plurality of parameters comprise a carrier group index for said second carrier, assigning said second carrier to one of said at least one second carrier group identified by said carrier group index; and (2) otherwise, assigning said second carrier to said first carrier group; b) transmitting, by said base station, a control command configured to cause transmission of a random access preamble on random access resources of a second carrier in said second carrier group; and c) transmitting, by said base station, a random access response on said first carrier, said random access response comprising a timing alignment command for said second carrier group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A base station, configured to communicate employing a plurality of carriers, comprising:
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a) one or more communication interfaces configured to communicate with a wireless device via at least one wireless link; b) one or more processors; and c) memory storing instructions that, when executed by said at least one or more processors, cause said base station to; i) transmit at least one radio resource control message to said wireless device, said at least one radio resource control message; (1) configured to cause in said wireless device; (a) configuration of at least one second carrier in said plurality of carriers; and (b) assignment of each of said at least one second carrier to a carrier group in a plurality of carrier groups, said plurality of carrier groups comprising;
(i) a first carrier group comprising a first subset of said plurality of carriers, said first subset comprising a first carrier; and
(ii) at least one second carrier group, a second carrier group in said at least one second carrier group comprising a second subset of said at least one second carrier; and(2) comprising a plurality of parameters, for each of said at least one second carrier; (a) if said plurality of parameters comprise a carrier group index for said second carrier, assigning said second carrier to one of said at least one second carrier group identified by said carrier group index; and (b) otherwise, assigning said second carrier to said first carrier group; ii) transmit a control command configured to cause transmission of a random access preamble on random access resources of a second carrier in said second carrier group; and iii) transmit a random access response on said first carrier, said random access response comprising a timing alignment command for said second carrier group. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A wireless device comprising:
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a) one or more communication interfaces configured to communicate with a base station via at least one wireless link; b) one or more processors; and c) memory storing instructions that, when executed by said at least one or more processors, cause said wireless device to; i) receive at least one radio resource control message from said base station, said base station configured to communicate employing a plurality of carriers with said wireless device, said at least one radio resource control message; (1) causing in said wireless device; (a) configuration of at least one second carrier in said plurality of carriers; and (b) assignment of each of said at least one second carrier to a carrier group in a plurality of carrier groups, said plurality of carrier groups comprising;
(i) a first carrier group comprising a first subset of said plurality of carriers, said first subset comprising a first carrier; and
(ii) at least one second carrier group, a second carrier group in said at least one second carrier group comprising a second subset of said at least one second carrier; and(2) comprising a plurality of parameters, for each of said at least one second carrier; (a) if said plurality of parameters comprise a carrier group index for said second carrier, assigning said second carrier to one of said at least one second carrier group identified by said carrier group index; and (b) otherwise, assigning said second carrier to said first carrier group; ii) receive a control command configured to cause transmission of a random access preamble on random access resources of a second carrier in said second carrier group; and iii) receive a random access response on said first carrier, said random access response comprising a timing alignment command for said second carrier group. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification