Scheduling request in a wireless device and wireless network
A wireless device receives indications of: a first scheduling request (SR) resource corresponding to first logical channel(s) having a first logical channel prioritization (LCP) mapping to first radio resources; and a second SR resource corresponding to second logical channel(s) having a second LCP mapping to second radio resources. A buffer status report (BSR) is triggered in response to data becoming available for the second logical channel(s). First uplink grant(s) indicating a first radio resource of the first radio resources is received. An SR for transmission of the BSR is triggered in response to the first radio resource not meeting the second LCP mapping configured for the second logical channel(s) that triggered the BSR. The SR is transmitted via the second SR resource selected based on the second logical channel(s) triggering the BSR. The BSR is transmitted via a second radio resource of the second radio resources.
1. A method comprising:
receiving a message from a base station, the message indicating a first scheduling request (SR) resource of the base station associated with a first logical channel and a second SR resource of the base station associated with a second logical channel;
triggering an SR, for transmission of a buffer status report (BSR), in response to an uplink resource of a logical channel not associated with the BSR being unavailable for transmission of available uplink data for a logical channel associated with the BSR;
selecting one of the first SR resource and the second SR resource based on which one of the first logical channel and the second logical channel is associated with the BSR;
transmitting the triggered SR via the selected one of the first SR resource and the second SR resource;
receiving an uplink grant indicating a radio resource mapped to the logical channel associated with the BSR and corresponding to a transmission duration for transmission of one or more transport blocks in a transmission time interval; and
transmitting one or more transport blocks comprising the BSR via the indicated radio resource.
2. The method of claim 1 , wherein the message includes:
first configuration parameters of the first logical channel, the first configuration parameters indicating a first SR configuration index associated with the first SR resource; and
second configuration parameters of the second logical channel, the second configuration parameters indicating a second SR configuration index associated with the second SR resource.
3. The method of claim 1 , wherein the message includes:
one or more first SR prohibit timer values and one or more first SR transmission counter values; and
one or more second SR prohibit timer values and one or more second SR transmission counter values.
4. The method of claim 1 , wherein:
the first logical channel corresponds to one or more first transmission durations up to a first value;
the second logical channel corresponds to one or more second transmission durations up to a second value; and
a first transmission duration of the one or more first transmission durations is for transmission of a first transport block in a first transmission time interval.
5. A wireless device comprising:
a memory comprising computer-executable instructions; and
a processor configured to execute the computer-executable instructions and cause the wireless device to:
receive a message from a base station, the message indicating a first scheduling request (SR) resource of the base station associated with a first logical channel and a second SR resource of the base station associated with a second logical channel
trigger an SR, for transmission of a buffer status report (BSR), in response to an uplink resource of a logical channel not associated with the BSR being unavailable for transmission of available uplink data for a logical channel associated with the BSR;
select one of the first SR resource and the second SR resource based on which one of the first logical channel and the second logical channel is associated with the BSR;
transmit the triggered SR via the selected one of the first SR resource and the second SR resource;
receive an uplink grant indicating a radio resource mapped to the logical channel associated with the BSR and corresponding to a transmission duration for transmission of one or more transport blocks in a transmission time interval; and
transmit one or more transport blocks comprising the BSR via the indicated radio resource.
6. The wireless device of claim 5 , wherein the message includes:
first configuration parameters of the first logical channel, the first configuration parameters indicating a first SR configuration index associated with the first SR resource; and
second configuration parameters of the second logical channel, the second configuration parameters indicating a second SR configuration index associated with the second SR resource.
7. The wireless device of claim 5 , wherein the message includes:
one or more first SR prohibit timer values and one or more first SR transmission counter values; and
one or more second SR prohibit timer values and one or more second SR transmission counter values.
8. The wireless device of claim 5 , wherein:
the first logical channel corresponds to one or more first transmission durations up to a first value;
the second logical channel corresponds to one or more second transmission durations up to a second value; and
a first transmission duration of the one or more first transmission durations is for transmission of a first transport block in a first transmission time interval.
9. A method comprising:
transmitting a message to a user equipment (UE), the message indicating a first scheduling request (SR) resource of a base station associated with a first logical channel and a second SR resource of the base station associated with a second logical channel;
receiving an SR including a buffer status report (BSR) from the UE via one of the first SR resource and the second SR resource;
determining an uplink grant indicating a radio resource mapped to the logical channel associated with the BSR and corresponding to a transmission duration for transmission of one or more transport blocks in a transmission time interval; and
transmitting the uplink grant to the UE.
10. The method of claim 9 , wherein the message includes:
first configuration parameters of the first logical channel, the first configuration parameters indicating a first SR configuration index associated with the first SR resource; and
second configuration parameters of the second logical channel, the second configuration parameters indicating a second SR configuration index associated with the second SR resource.
11. The method of claim 9 , wherein the message includes:
one or more first SR prohibit timer values and one or more first SR transmission counter values; and
one or more second SR prohibit timer values and one or more second SR transmission counter values.
12. The method of claim 9 , wherein:
the first logical channel corresponds to one or more first transmission durations up to a first value;
the second logical channel corresponds to one or more second transmission durations up to a second value; and
a first transmission duration of the one or more first transmission durations is for transmission of a first transport block in a first transmission time interval.
13. A base station comprising:
a memory comprising computer-executable instructions; and
a processor configured to execute the computer-executable instructions and cause the base station to:
transmit a message to a user equipment (UE), the message indicating a first scheduling request (SR) resource of the base station associated with a first logical channel and a second SR resource of the base station associated with a second logical channel;
receive an SR including a buffer status report (BSR) from the UE via one of the first SR resource and the second SR resource;
determine an uplink grant indicating a radio resource mapped to the logical channel associated with the BSR and corresponding to a transmission duration for transmission of one or more transport blocks in a transmission time interval; and
transmit the uplink grant to the UE.
14. The base station of claim 13 , wherein the message includes:
first configuration parameters of the first logical channel, the first configuration parameters indicating a first SR configuration index associated with the first SR resource; and
second configuration parameters of the second logical channel, the second configuration parameters indicating a second SR configuration index associated with the second SR resource.
15. The base station of claim 13 , wherein the message includes:
one or more first SR prohibit timer values and one or more first SR transmission counter values; and
one or more second SR prohibit timer values and one or more second SR transmission counter values.
16. The base station of claim 13 , wherein:
the first logical channel corresponds to one or more first transmission durations up to a first value;
the second logical channel corresponds to one or more second transmission durations up to a second value; and
a first transmission duration of the one or more first transmission durations is for transmission of a first transport block in a first transmission time interval.