Sidelink radio link management
A first wireless device receives, from a base station, one or more messages indicating a threshold number of radio link control (RLC) packet retransmissions associated with a sidelink radio link failure, wherein: the first wireless device has a radio resource control (RRC) connection with a second wireless device; a first logical channel is associated with one or more first carrier frequencies; and a second logical channel is associated with one or more second carrier frequencies. After a number of retransmissions of an RLC packet associated with the first logical channel reaches a threshold number, the first wireless device determines a connection failure of the RRC connection and transmits, to a base station, an indication of the connection failure.
1 . A method comprising:
receiving, by a first wireless device from a base station, one or more messages indicating a threshold number of radio link control (RLC) packet retransmissions associated with a sidelink radio link failure, wherein:
the first wireless device has a radio resource control (RRC) connection with a second wireless device;
a first logical channel is associated with one or more first carrier frequencies; and
a second logical channel is associated with one or more second carrier frequencies;
transmitting by the first wireless device to the second wireless device:
first packets associated with the first logical channel via the one or more first carrier frequencies; and
second packets associated with the second logical channel via the one or more second carrier frequencies, wherein the second packets are duplications of the first packets;
after a number of retransmissions of an RLC packet associated with the first logical channel reaches the threshold number, determining, by the first wireless device, a connection failure of the RRC connection between the first wireless device and the second wireless device; and
transmitting, to the base station, an indication of the connection failure associated with the second wireless device.
2 . The method of claim 1 , wherein the connection failure of the RRC connection between the first wireless device and the second wireless device comprises the sidelink radio link failure.
3 . The method of claim 1 , wherein determining the connection failure is based on the threshold number being reached for at least one logical channel of at least one carrier frequency.
4 . The method of claim 3 , wherein the at least one carrier frequency comprises the one or more first carrier frequencies and the one or more second carrier frequencies.
5 . The method of claim 3 , wherein the at least one logical channel of every carrier frequency comprises the first logical channel and the second logical channel.
6 . The method of claim 1 , wherein the first wireless device communicates a hybrid automatic repeat request (HARQ) feedback and/or a sidelink control information (SCI) with the second wireless device.
7 . The method of claim 6 , wherein the HARQ feedback and/or the SCI is:
communicated via a primary carrier frequency; or
not communicated via a non-primary carrier frequency.
8 . A first wireless device comprising one or more processors and memory storing instructions that, when executed by the one or more processors, cause the first wireless device to:
receive, from a base station, one or more messages indicating a threshold number of radio link control (RLC) packet retransmissions associated with a sidelink radio link failure, wherein:
the first wireless device has a radio resource control (RRC) connection with a second wireless device;
a first logical channel is associated with one or more first carrier frequencies; and
a second logical channel is associated with one or more second carrier frequencies;
transmit, to the second wireless device:
first packets associated with the first logical channel via the one or more first carrier frequencies; and
second packets associated with the second logical channel via the one or more second carrier frequencies, wherein the second packets are duplications of the first packets;
after a number of retransmissions of an RLC packet associated with the first logical channel reaches the threshold number, determine a connection failure of the RRC connection between the first wireless device and the second wireless device; and
transmit, to the base station, an indication of the connection failure associated with the second wireless device.
9 . The first wireless device of claim 8 , wherein the connection failure of the RRC connection between the first wireless device and the second wireless device is the sidelink radio link failure.
10 . The first wireless device of claim 8 , wherein determining the connection failure is based on the threshold number being reached for at least one logical channel of at least one carrier frequency.
11 . The first wireless device of claim 10 , wherein the at least one carrier frequency comprises the one or more first carrier frequencies and the one or more second carrier frequencies.
12 . The first wireless device of claim 10 , wherein the at least one logical channel of every carrier frequency comprises the first logical channel and the second logical channel.
13 . The first wireless device of claim 8 , wherein the first wireless device communicates a hybrid automatic repeat request (HARQ) feedback and/or a sidelink control information (SCI) with the second wireless device.
14 . The first wireless device of claim 13 , wherein the HARQ feedback and/or the SCI is:
communicated via a primary carrier frequency; or
not communicated via a non-primary carrier frequency.
15 . A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a first wireless device, cause the first wireless device to:
receive, from a base station, one or more messages indicating a threshold number of radio link control (RLC) packet retransmissions associated with a sidelink radio link failure, wherein:
the first wireless device has a radio resource control (RRC) connection with a second wireless device;
a first logical channel is associated with one or more first carrier frequencies; and
a second logical channel is associated with one or more second carrier frequencies;
transmit, to the second wireless device:
first packets associated with the first logical channel via the one or more first carrier frequencies; and
second packets associated with the second logical channel via the one or more second carrier frequencies, wherein the second packets are duplications of the first packets;
after a number of retransmissions of an RLC packet associated with the first logical channel reaches the threshold number, determine a connection failure of the RRC connection between the first wireless device and the second wireless device; and
transmit, to the base station, an indication of the connection failure associated with the second wireless device.
16 . The non-transitory computer-readable medium of claim 15 , wherein the connection failure of the RRC connection between the first wireless device and the second wireless device is the sidelink radio link failure.
17 . The non-transitory computer-readable medium of claim 15 , wherein determining the connection failure is based on the threshold number being reached for at least one logical channel of at least one carrier frequency.
18 . The non-transitory computer-readable medium of claim 17 , wherein the at least one carrier frequency comprises the one or more first carrier frequencies and the one or more second carrier frequencies.
19 . The non-transitory computer-readable medium of claim 17 , wherein the at least one logical channel of every carrier frequency comprises the first logical channel and the second logical channel.
20 . The non-transitory computer-readable medium of claim 15 , wherein the first wireless device communicates a hybrid automatic repeat request (HARQ) feedback and/or a sidelink control information (SCI) with the second wireless device.