Search

EP-4255062-B1 - METHOD AND APPARATUS FOR RECEIVING INFORMATION

EP4255062B1EP 4255062 B1EP4255062 B1EP 4255062B1EP-4255062-B1

Inventors

  • HASSAN, Khaled Shawky
  • GHEREKHLOO, SOHEIL

Dates

Publication Date
20260506
Application Date
20220331

Claims (20)

  1. A method performed by a first terminal device (10), the method comprising: receiving (300) first information (I-1) characterizing a resource configuration provided by a network device (20) for a data exchange between the network device (20), said first terminal device (10) and at least one further terminal device ( 10a, 10b, 10c), providing (302) second information (I-2) based on the first information (I-1) via at least one sidelink transmission (SL-T) to said at least one further terminal device (10a, 10b, 10c).
  2. The method according to claim 1, wherein the first information (I-1) comprises at least one of: a) configured grant information (CG-UL) associated with at least one uplink data transmission to the network device (20), b) resource information (RI-SPS) associated with semi-persistent scheduling, SPS, c) dynamic grant (DG) associated with time and/or frequency resources, d) configured grant information (CG-SL) associated with at least one sidelink data transmission.
  3. The method according to any of the preceding claims, comprising: providing (302a) the second information (I-2) via the at least one sidelink transmission (SL-T) to a predetermined group (G1) of further terminal devices (10a, 10b, 10c).
  4. The method according to any of the preceding claims, comprising: dividing (305) a period associated with a configured grant into a plurality of shares (CG-SH), assigning (307) at least one share of the plurality of shares (CG-SH) to the at least one further terminal device (10a, 10b, 10c).
  5. The method according to any of the preceding claims, comprising: forming (310), by the first terminal device (10), together with the at least one further terminal device (10a, 10b, 10c), a group (G1) of sidelink transmission-based terminal devices capable of exchanging data with each other using sidelink transmissions (SL-T).
  6. The method according to claim 5, comprising: the first terminal device (10) at least temporarily assuming (312) the role of a group-lead (GL) of the group (G1) being connected to the network.
  7. The method according to any of the claims 5 to 6, wherein providing (302) the second information (I-2) to the at least one further terminal device (10a, 10b, 10c) comprises providing (302b) the second information (I-2) to a group-lead terminal device (10-GL) of the group (G1), wherein the group-lead terminal device (10-GL) may transmit the second information (I-2) to at least some other member of the group (G1).
  8. The method according to any of the preceding claims, wherein a hybrid automatic repeat request, HARQ, mechanism is used for providing (302) protection to a transmission of the second information (I-2) to the at least one further terminal device (10a, 10b, 10c).
  9. The method according to any of the preceding claims, comprising: synchronizing (315) a use (USE-RES) of resources associated with at least one of the first information (1-1) and the second information (I-2),.
  10. The method according to at least one of the claims 5 to 9, wherein the group (G1) comprises terminal devices (10, 10a, 10b, 10c) which are at least temporarily collocated or nearby each other.
  11. The method according to at least one of the claims 5 to 10, comprising at least one of: a) indicating (320), by the first terminal device (10), a group-lead (GL) of the group (G1) to at least one of a1) at least one further terminal device (10a, 10b, 10c), a2) a network device, b) maintaining (322), by the first terminal device (10), a connectivity (CONN-20) to the network device (20) for terminal devices belonging to the group (G1), c) maintaining (324) the first terminal device (10) in an active state (ACT-STATE).
  12. The method according to at least one of the claims 6 to 11, comprising at least one of: a) notifying (325) members (10a, 10b, 10c) of the group (G1) that the first terminal device (10) intends to leave the group (G1), b) determining (327) a new group lead (GL'), which is designated to perform a data exchange with the network device (20).
  13. The method according to any of the preceding claims, comprising: receiving (330), by the first terminal device (10), third information (I-3) characterizing handover conditions for a conditional handover, CHO, procedure, from the network device (20), and transmitting (332) at least a part (I-3') of the third information (I-3) to the at least one further terminal device (10a, 10b, 10c).
  14. The method according to any of the preceding claims, comprising: receiving (335), by the first terminal device (10), fourth information (I-4) characterizing a configuration or reconfiguration associated with the CHO, and transmitting (337) at least a part (I-4') of the fourth information (I-4) to the at least one further terminal device (10a, 10b, 10c).
  15. The method according to any of the preceding claims, comprising: receiving (340), by the first terminal device (10), fifth information (I-5) from at least one further terminal device, the fifth information (I-5) characterizing a message (MSG-I-5) and at least one indicator (IND-I-5) indicating whether a) the message (MSG-I-5) relates to a local safety, and/or whether b) the message (MSG-I-5) relates to a network safety, and, based on the at least one indicator (IND-I-5), providing (342) at least the message (MSG-I-5) to at least one of b1) a further terminal device (10a, 10b, 10c), b2) the network device (20).
  16. The method according to claim 15, comprising: processing (341) the fifth information (I-5), wherein the processing (341) comprises at least one of: a) determining (341a) whether multiple messages (MSG-I-5) are associated with the fifth information (I-5), b) filtering (341b) at least a part of the fifth information (I-5), c) aggregating (341c) at least a part of the fifth information (I-5).
  17. A method performed by a first terminal device (10), a second terminal device (10a) and a network device (20), the method comprising: receiving (400), by the second terminal device (10a), second information (I-2) from the first terminal device (10) via at least one sidelink transmission (SL-T), the second information (I-2) being derived by the first terminal device (10) based on first information (I-1) provided by the network device (20) to the first terminal device (10), the first information (I-1) characterizing a resource configuration for a data exchange between the network device (20) and at least one of the first terminal device (10) and the second terminal device (10a, 10b, 10c).
  18. The method according to claim 17, comprising: updating (405) the second information (I-2), whereby updated second information (I-2') is obtained.
  19. The method according to any of the claims 17 to 18, comprising entering (409), by the second terminal device (10a), at least one of: a) an inactive mode, b) an idle mode.
  20. The method according to any of the claims 17 to 19, comprising at least one of: a) transmitting (410) data (DAT-LOC-SA), the data relating to a local safety, via at least one sidelink transmission (SL-T), to at last one further terminal device (10, 10b, 10c), transmitting (412) data (DAT-NW-SA), the data relating to a safety related to a network (1000), via at least one sidelink transmission (SL-T), to at last one further terminal device (10, 10b, 10c).

Description

Technical Field The disclosure relates to a method for receiving information by a terminal device. The disclosure further relates to an apparatus for receiving information, e.g. for a terminal device. US 2021/204268 A1 discloses a method for managing sidelink resources. US 2021/219268 A1 discloses methods and systems for resource management on sidelink. Summary The present invention is defined in the appended independent claims. Particular realizations of the invention are defined in the appended dependent claims. Exemplary embodiments relate to a method, for example a computer-implemented method, comprising: receiving, by a first terminal device, first information characterizing a resource configuration provided by a network device for a data exchange between a) the network device and at least one terminal device and/or b) at least two terminal devices, providing second information based on the first information via at least one sidelink transmission to at least one further terminal device. In some embodiments, this enables to, for example efficiently, share or distribute information associated with the resource configuration provided by a network device with or to other terminal devices. In some embodiments, the first terminal device and/or the at least one further terminal device can e.g. be used with a wireless, for example cellular, communications system, which is for example based on and/or adheres at least partially to at least one third generation partnership project, 3GPP, radio standard such as 4G (fourth generation), 5G (fifth generation) or other radio access technology. In some embodiments, the first terminal device and/or the at least one further terminal device may be a user equipment (UE) or a data transceiver modem, which, for example, may be associated with a mobile object such as e.g. a vehicle, for example car or truck or the like. In some embodiments, the first terminal device and/or the at least one further terminal device may be at least one of: an loT (Internet of Things) device, an infrastructure component or part of an infrastructure component (e.g., traffic lights, street lights, traffic sign, toll gate), an industrial automation component, e.g. IloT (Industrial loT) component or infrastructure (e.g., robots, machines, etc.), a device for a mobile broadband user, and/or a vehicle. In some embodiments, the network device is a base station, e.g. for a wireless, for example cellular, communications system, which is for example based on and/or adheres at least partially to at least one third generation partnership project, 3GPP, radio standard such as 4G (fourth generation), 5G (fifth generation) or other radio access technology. In some embodiments, the network device may e.g. be a gNB. In some embodiments, the first information comprises at least one of: a) configured grant information associated with at least one uplink data transmission to the network device, b) resource information associated with semi-persistent scheduling, SPS, c) dynamic grant associated with time and/or frequency resources, e.g. non-periodic, d) configured grant information associated with at least one sidelink data transmission. In some embodiments, the method comprises: providing the second information via the at least one sidelink transmission to a predetermined group of further terminal devices. In some embodiments, the method comprises: dividing a period associated with a configured grant into a plurality of shares, and, optionally, assigning at least one share of the plurality of shares to the at least one further terminal device. In some embodiments, the method comprises: forming, by the first terminal device, together with the at least one further terminal device, a group, for example of sidelink transmission-based, for example group-managed, terminal devices capable of exchanging data with each other using sidelink transmissions. In some embodiments, such group may also exemplarily be referred to as a "sidelink (SL)-managed group". In some embodiments, the method comprises the first terminal device at least temporarily assuming the role of a group-lead of the group, e.g. being connected to the network. In some other embodiments, at least one further terminal device may at least temporarily assume the role of a group-lead of the group. In some embodiments, providing the second information to the at least one further terminal device comprises providing the second information to a group-lead terminal device of the group, wherein for example, the group-lead terminal device may transmit the second information, for example using group-cast transmissions, to all other members of the group. In some embodiments, the method provides that a hybrid automatic repeat request, HARQ, mechanism is, for example at least temporarily, used for providing protection to a transmission of the second information to the at least one further terminal device. In some embodiments, the method comprises: synchronizing a use of res