Method for configuring a mac pdu for d2d communication system and device therefor

Patent metadata

Field	Value
Publication number	US-2016302248-A1
Application number	US-201515037229-A
Country	US
Kind code	A1
Filing date	Jan 16, 2015
Priority date	Jan 29, 2014
Publication date	Oct 13, 2016
Grant date	—

Abstract

The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for constructing a MAC PDU for D 2 D communication system, the method comprising: constructing, by a first UE, a MAC PDU including a source ID, a target ID, a plurality of logical channel IDs and a plurality of MAC SDUs, wherein each MAC SDU is transmitted from the first UE identified by the source ID to each second UE identified by the target ID via a logical channel identified by one of the plurality of logical channel IDs; transmitting the MAC PDU to at least one second UE via an interface, wherein the interface is configured between the first UE and the at least one second UE directly.

First claim

1 - 14 . (canceled)

15 . A method for a first User Equipment (UE) operating in a wireless communication system, the method comprising:
generating, by the first UE, a Medium Access Control (MAC) Protocol Data Unit (PDU) including a source identity (ID), a target ID, a plurality of logical channel IDs (LCIDs) and a plurality of MAC Service Data Units (SDUs); and transmitting, by the first UE, the MAC PDU to at least one second UE via an interface, wherein the interface is configured between the first UE and the at least one second UE directly, wherein each MAC SDU of the plurality of MAC SDUs respectively corresponds to one LCID of the plurality of LCIDs, and wherein the first UE is identified by the source ID and at least one second UE is identified by the target ID.

16 . The method according to claim 15 , wherein the source ID is in a first field, the target ID is in a second field, the logical channel IDs are in a plurality of third fields and the plurality of MAC SDUs are in a plurality of fourth fields, respectively.

17 . The method according to claim 15 , wherein the source ID and the target ID are used in a MAC entity.

18 . A method for a second User Equipment (UE) operating in a wireless communication system, the method comprising:
receiving, by the second UE, a Medium Access Control (MAC) Protocol Data Unit (PDU) including a source identity (ID), a target ID, a plurality of logical channel IDs (LCID) and a plurality of MAC Service Data Units (SDUs) from at least one first UE via an interface, wherein the interface is configured between the second UE and the at least one first UE directly; and processing, by the second UE, the MAC PDU, wherein each MAC SDU of the plurality of MAC SDUs respectively corresponds to one LCID of the plurality of LCIDs, and wherein the at least one first UE is identified by the source ID and the second UE is identified by the target ID.

19 . The method according to claim 18 , further comprising:
discarding the MAC PDU if the target ID does not match any one of a plurality of IDs managed by the second UE.

20 . The method according to claim 18 , further comprising:
parsing the MAC PDU if the target ID matches any one of a plurality of IDs managed by the second UE.

21 . The method according to claim 18 , wherein the source ID and the target ID are used in a MAC entity.

22 . A first User Equipment (UE) for operating in a wireless communication system, the first UE comprising:
a Radio Frequency (RF) module; and a processor operably coupled with the RF module and configured to:
generate a Medium Access Control (MAC) Protocol Data Unit (PDU) including a source identity (ID), a target ID, a plurality of logical channel IDs (LCIDs) and a plurality of MAC Service Data Units (SDUs), and
transmit, via the RF module, the MAC PDU to at least one second UE via an interface, wherein the interface is configured between the first UE and the at least one second UE directly,
wherein each MAC SDU of the plurality of MAC SDUs respectively corresponds to one LCID of the plurality of LCIDs, and wherein the first UE is identified by the source ID and the at least one second UE is identified by the target ID.

23 . The first UE according to claim 22 , wherein the source ID is in a first field, the target ID is in a second field, the logical channel IDs are in a plurality of third fields and the plurality of MAC SDUs are in a plurality of fourth fields, respectively.

24 . The first UE according to claim 22 , wherein the source ID and the target ID are used in a MAC entity.

25 . A second User Equipment (UE) for operating in a wireless communication system, the second UE comprising:
a Radio Frequency (RF) module; and a processor configured to:
receive, via the RF module, a Medium Access Control (MAC) Protocol Data Unit (PDU) including a source identity (ID), a target ID, a plurality of logical channel IDs (LCIDs) and a plurality of MAC Service Data Units (SDUs) from at least one first UE via an interface, wherein the interface is configured between the second UE and the at least one first UE directly, and
process the MAC PDU,
wherein each MAC SDU of the plurality of MAC SDUs respectively corresponds to one LCID of the plurality of LCIDs, and wherein the at least one first UE is identified by the source ID and the second UE is identified by the target ID.

26 . The second UE according to claim 25 , wherein the processor is further configured to discard the MAC PDU if the target ID does not match any one of a plurality of IDs managed by the second UE.

27 . The second UE according to claim 25 , wherein the processor is further configured to parse the MAC PDU if the target ID matches any one of a plurality of IDs managed by the second UE.

28 . The second UE according to claim 25 , wherein the source ID and the target ID are used in a MAC entity.

Assignees

• Lg Electronics Inc

Inventors

• Yi Seungjune
• Lee Sunyoung

Classifications

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/042

  Electricity · mapped topic

• H04L61/6022

  Electricity · mapped topic

• H04L1/1812

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title