# US 2018/0027474 A1 · Method and apparatus for supporting communication via a relay device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0027474 A1 - Document ID: US20180027474A1 - Status: Published application - Kind: A1 - Application number: 15/722,720 - Filed: 2017-10-02 - Published: 2018-01-25 - Earliest claimed: 2010-04-02 - Assignees: InterDigital Patent Holdings, Inc. - Applicants: InterDigital Patent Holdings, Inc. - Inventors: Peter S. Wang; Janet A. Stern-Berkowitz; Nobuyuki Tamaki; Stephen E. Terry; Mihaela C. Beluri; Kai Liu - Web page: https://patentgrep.com/patent/US20180027474A1 ## CPC - H04W 40/22: using selective relaying for reaching a BTS [Base Transceiver Station] or an access point - H04B 7/155: Ground-based stations (H04B7/204 takes precedence) - H04W 16/26: Cell enhancers {or enhancement}, e.g. for tunnels, building shadow - H04W 28/0278: {using buffer status reports (dynamic wireless traffic scheduling definition H04W72/12)} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/1221: {based on age of data to be sent} - H04W 36/08: Reselecting an access point - H04W 84/047: {using dedicated repeater stations} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION ## Abstract A method and apparatus for supporting communication buffer status reports (BSRs) are disclosed. A wireless device may transmit data to a wireless transmit/receive unit (WTRU) group, which may include a WTRU and further include its own respective at least one logical channel group. The wireless device may produce a BSR, which may include an indication associated with the logical channel group and an index indicating an amount of data for the logical channel group. The wireless device may transmit the BSR to an eNode-B. Then, the wireless device may receive receives allocation information for transmission to the WTRU group. Also, the BSR may further include a plurality of indications associated with a respective plurality of logical channel groups, and the plurality of logical channel groups may be grouped based on priority. The index may further include a total amount of data across all logical channels of the logical channel group. ## Claims ### Claim 1 A wireless device comprising: a transceiver configured to transmit data to a wireless transmit/receive unit (WTRU) group, wherein the WTRU group includes at least one WTRU and further includes its own respective at least one logical channel group; a processor operatively coupled to the transceiver, the processor configured to produce a first buffer status report, wherein the first buffer status report includes an indication of the logical channel group and an index indicating an amount of data for the logical channel group; and the transceiver configured to transmit the produced first buffer status report to an eNode-B. ### Claim 2 (depends on 1) The wireless device of claim 1, wherein after transmitting the first buffer status report, the transceiver is further configured to receive allocation information for transmission to the WTRU group. ### Claim 3 (depends on 1) The wireless device of claim 1, wherein the first buffer status report further includes a plurality of indications for a respective plurality of logical channel groups, wherein the plurality of logical channel groups are grouped based on priority. ### Claim 4 (depends on 3) The wireless device of claim 3, wherein the first buffer status report further includes a plurality of indexes for the respective plurality of logical channel groups. ### Claim 5 (depends on 3) The wireless device of claim 3, wherein the plurality of logical channel groups reported in the first buffer status report are ordered based on priority. ### Claim 6 (depends on 1) The wireless device of claim 1, wherein the transceiver is further configured to transmit to the eNode-B a second buffer status report for buffered data that the wireless device intends to transmit to the eNode-B. ### Claim 7 (depends on 1) The wireless device of claim 1, wherein the index identifies a total amount of data across all logical channels of the logical channel group. ### Claim 8 A method for use in a wireless device, the method comprising: transmitting, by the wireless device, data to a wireless transmit/receive unit (WTRU) group, wherein the WTRU group includes at least one WTRU and further includes its own respective at least one logical channel group; producing, by the wireless device, a first buffer status report, wherein the first buffer status report includes an indication of the logical channel group and an index indicating an amount of data for the logical channel group; and transmitting, by the wireless device, the produced first buffer status report to an eNode-B. ### Claim 9 (depends on 8) The method of claim 8, wherein after transmitting the first buffer status report, the wireless device receives allocation information for transmission to the WTRU group. ### Claim 10 (depends on 8) The method of claim 8, wherein the first buffer status report further includes a plurality of indications for a respective plurality of logical channel groups, wherein the plurality of logical channel groups are grouped based on priority. ### Claim 11 (depends on 10) The method of claim 10, wherein the first buffer status report further includes a plurality of indexes for the respective plurality of logical channel groups. ### Claim 12 (depends on 10) The method of claim 10, wherein the plurality of logical channel groups reported in the first buffer status report are ordered based on priority. ### Claim 13 (depends on 8) The method of claim 8, further comprising: transmitting to the eNode-B a second buffer status report for buffered data that the wireless device intends to transmit to the eNode-B. ### Claim 14 (depends on 8) The method of claim 8, wherein the index identifies a total amount of data across all logical channels of the logical channel group. ### Claim 15 An eNode-B comprising: a transceiver configured to receive a first buffer status report, wherein the first buffer status report includes an indication of a logical channel group and an index indicating an amount of data for the logical channel group, and wherein a wireless transmit/receive unit (WTRU) group includes at least one WTRU and further includes the logical channel group as its own; and a processor operatively coupled to the transceiver, the processor and the transceiver configured to schedule data transmissions in response to the received first buffer status report. ### Claim 16 (depends on 15) The eNode-B of claim 15, wherein after receiving the first buffer status report, the transceiver is further configured to transmit allocation information for transmission to the WTRU group. ### Claim 17 (depends on 15) The eNode-B of claim 15, wherein the first buffer status report further includes a plurality of indications for a respective plurality of logical channel groups, wherein the plurality of logical channel groups are grouped and ordered based on priority. ### Claim 18 (depends on 17) The eNode-B of claim 17, wherein the first buffer status report further includes a plurality of indexes for the respective plurality of logical channel groups. ### Claim 19 (depends on 15) The eNode-B of claim 15, wherein the transceiver is further configured to receive a second buffer status report for buffered data that a wireless device intends to transmit to the eNode-B. ### Claim 20 (depends on 15) The eNode-B of claim 15, wherein each respective index identifies a total amount of data across all logical channels of each respective logical channel group.