Sounding reference signal transmission in a wireless network
First Claim
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1. A wireless device comprising:
- one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to;
receive at least one message comprising;
a cell group index associated with a secondary cell of a secondary cell group of a plurality of cell groups; and
configuration parameters of sounding reference signal (SRS) transmission via the secondary cell;
receive a first control command configured to cause transmission, via the secondary cell group, of a random access preamble;
receive a random access response comprising;
a timing advance command (TAC) for the secondary cell group; and
a power control command; and
transmit, via the secondary cell and after application of the TAC, a plurality of SRSs, wherein transmission power associated with a transmission of a first SRS of the plurality of the SRSs is based, at least in part, on the power control command, and wherein the wireless device is configured to not transmit any of the plurality of the SRSs via the secondary cell during a time period between receiving the at least one message and receiving the TAC.
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Abstract
A wireless device receives message(s) comprising configuration parameters of sounding reference signals on a secondary cell in a secondary cell group. The wireless device transmits one or more of the sounding reference signals on the secondary cell after applying a timing advance to the secondary cell group. The wireless device is configured to not transmit any of the sounding reference signals on the secondary cell after receiving the message(s) and before receiving the timing advance.
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Citations
40 Claims
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1. A wireless device comprising:
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one or more processors; and memory storing instructions that, when executed by the one or more processors, cause the wireless device to; receive at least one message comprising; a cell group index associated with a secondary cell of a secondary cell group of a plurality of cell groups; and configuration parameters of sounding reference signal (SRS) transmission via the secondary cell; receive a first control command configured to cause transmission, via the secondary cell group, of a random access preamble; receive a random access response comprising; a timing advance command (TAC) for the secondary cell group; and a power control command; and transmit, via the secondary cell and after application of the TAC, a plurality of SRSs, wherein transmission power associated with a transmission of a first SRS of the plurality of the SRSs is based, at least in part, on the power control command, and wherein the wireless device is configured to not transmit any of the plurality of the SRSs via the secondary cell during a time period between receiving the at least one message and receiving the TAC. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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receiving, by a wireless device, at least one message comprising; a cell group index associated with a secondary cell of a secondary cell group of a plurality of cell groups; and configuration parameters of sounding reference signal (SRS) transmission via the secondary cell; receiving a first control command configured to cause transmission, via the secondary cell group, of a random access preamble; receiving a random access response comprising; a timing advance command (TAC) for the secondary cell group; and a power control command; and transmitting, via the secondary cell and after application of the TAC, a plurality of SRSs, wherein transmission power associated with a transmission of a first SRS of the plurality of the SRSs is based, at least in part, on the power control command, and wherein the wireless device is configured to not transmit any of the plurality of the SRSs via the secondary cell during a time period between the receiving the at least one message and the receiving the TAC. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system comprising:
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a base station comprising; one or more processors; and memory storing instructions that, when executed by the one or more processors of the base station, cause the base station to; transmit at least one message comprising; a cell group index associated with a secondary cell of a secondary cell group of a plurality of cell groups; and configuration parameters of sounding reference signal (SRS) transmission via the secondary cell; transmit a first control command configured to cause transmission, via the secondary cell group, of a random access preamble; and transmit a random access response comprising; a timing advance command (TAC) for the secondary cell group; and a power control command; and a wireless device comprising; one or more processors; and memory storing instructions that, when executed by the one or more processors of the wireless device, cause the wireless device to; transmit, via the secondary cell and after application of the TAC, a plurality of SRSs, wherein transmission power associated with a transmission of a first SRS of the plurality of the SRSs is based, at least in part, on the power control command, and wherein the wireless device is configured to not transmit any of the plurality of the SRSs via the secondary cell during a time period between receiving the at least one message and receiving the TAC. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method comprising:
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transmitting, by a base station and to a wireless device, at least one message comprising; a cell group index associated with a secondary cell of a secondary cell group of a plurality of cell groups; and configuration parameters of sounding reference signal (SRS) transmission via the secondary cell; transmitting, by the base station, a first control command configured to cause transmission, via the secondary cell group, of a random access preamble; transmitting, by the base station, a random access response comprising; a timing advance command (TAC) for the secondary cell group; and a power control command; and transmitting, by the wireless device, to the base station, via the secondary cell, and after application of the TAC, a plurality of SRSs, wherein transmission power associated with a transmission of a first SRS of the plurality of the SRSs is based, at least in part, on the power control command, and wherein the wireless device is configured to not transmit any of the plurality of the SRSs via the secondary cell during a time period between receiving the at least one message and receiving the TAC. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification