Base station, user equipment and methods for random access
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsQianxi Lu, Qingyu Miao
Life of this patent
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Abstract
According to a first aspect of embodiments herein, the object is achieved by a method in a base station for handling a Random Access Channel (RACH) procedure in a mixed cellular and device to device (D2D) network. The base station receives from a first user equipment in a RACH message, an indication that the RACH relates to D2D communication. The base station then schedules a D2D link to the first user equipment based on the indication.
Claims10
A method in a base station for handling a Random Access Channel (RACH) procedure in a mixed cellular and device to device (D2D) network, the method comprising:
- receiving, from a first user equipment in a RACH message, an indication that the RACH procedure relates to a desired D2D communication, wherein the RACH message is a Msg3 message and wherein the indication comprises a D2D-specific Buffer Status Report (BSR) value of a Medium Access Control (MAC) element, wherein the D2D-specific BSR is of a different value than that of a cellular BSR;
- and
- responsive to determining that the RACH procedure relates to the desired D2D communication based on the indication, scheduling a D2D link for the first user equipment.
A method in a first user equipment for handling a Random Access Channel (RACH) procedure in a mixed cellular and device to device (D2D) network, the method comprising:
- sending, to a base station within the mixed cellular and D2D network, in a RACH message, an indication that the RACH procedure relates to a desired D2D communication, wherein the RACH message is a Msg3 message and wherein the indication comprises a D2D-specific Buffer Status Report (BSR) value of a Medium Access Control (MAC) element, wherein the D2D-specific BSR is of a different value than that of a cellular BSR;
- and
- receiving information about a scheduled D2D link from the base station, wherein the D2D link has been scheduled to the first user equipment based on the indication.
A base station for handling a Random Access Channel (RACH) procedure in a mixed cellular and device to device (D2D) network, the base station comprising:
- a receiving unit to receive from a first user equipment, in a RACH message, an indication that the RACH procedure relates to a desired D2D communication wherein the RACH message is a Msg3 message and wherein the indication comprises a D2D-specific Buffer Status Report (BSR) value of a Medium Access Control (MAC) element, wherein the D2D-specific BSR is of a different value than that of a cellular BSR;
- and
- a scheduler to, responsive to a determination that the RACH procedure relates to the desired D2D communication based on the indication, schedule a D2D link for the first user equipment based on the indication.
A first user equipment for handling a Random Access Channel (RACH) procedure in a mixed cellular and device to device (D2D) network, the first user equipment comprising:
- a sending unit to send to a base station within the mixed cellular and D2D network, in a RACH message, an indication that the RACH procedure relates to a desired D2D communication, wherein the RACH message is a Msg3 message and wherein the indication comprises a D2D-specific Buffer Status Report (BSR) value of a Medium Access Control (MAC) element, wherein the D2D-specific BSR is of a different value than that of a cellular BSR;
- and
- a receiving unit to receive information about a scheduled D2D link from the base station, wherein the D2D link has been scheduled to the first user equipment based on the indication.
Dependencies are inferred from the claim text.