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EP-3800906-B1 - METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN MISSION CRITICAL DATA COMMUNICATION SYSTEM

EP3800906B1EP 3800906 B1EP3800906 B1EP 3800906B1EP-3800906-B1

Inventors

  • GUPTA, NISHANT
  • JALOTA, Monika
  • Vijay, Sangameshawara
  • SHAH, Sapan Pramodkumar

Dates

Publication Date
20260506
Application Date
20180323

Claims (12)

  1. A method, performed by a receiving Mission Critical Data, MCData, User Equipment, UE (102b), in a wireless communication system, the method comprising: receiving a short data service, SDS, message including a disposition request type Information Element, IE from a transmitting MCData UE (102a); initiating a timer in case that the receiving MCData UE identifies that the disposition request type IE is set as Delivery and Read; identifying whether a display indication is received by reading the SDS message before expiry of the timer; in case that the display indication is received before expiry of the timer, transmitting, to the transmitting MCData UE (102a), a consolidated disposition notification message including a Delivery and Read notification; and in case that the display indication is not received before expiry of the timer, transmitting, to the transmitting MCData UE (102a), a first disposition notification message including a Delivered notification, wherein a time interval associated with the timer for transmitting the consolidated disposition notification message or the first disposition notification message is configurable.
  2. The method of claim 1, further comprising: in case that the display indication is received after expiry of the timer, transmitting, to the transmitting MCData UE (102a), a second disposition notification message including a Read notification.
  3. The method of claim 1, further comprising: in case that the display indication is received before expiry of the timer, stopping the timer.
  4. The method of claim 1, wherein the SDS message including the disposition request type IE is transmitted via at least one of one-to-one communication and group communication; and wherein the consolidated disposition notification message and the first disposition notification message are transmitted via at least one of On-Network MCData communication system and Off-Network MCData communication system.
  5. A method in a wireless communication system, the method comprising: transmitting, by a transmitting Mission Critical Data, MCData, User Equipment, UE (102a), to a receiving MCData UE (102b), a short data service, SDS, message including a disposition request type Information Element, IE which is set as Delivery and Read, receiving, by the receiving MCData UE (102b), the short data service, SDS, message; initiating, by the receiving MCData UE (102b), a timer in case that the receiving MCData UE identifies that the disposition request type IE is set as Delivery and Read; identifying, by the receiving MCData UE (102b), whether a display indication is received by reading the SDS message before expiry of the timer; in case that the display indication is received before expiry of the timer, transmitting, by the receiving MCData UE (102b), to the transmitting MCData UE (102a), a consolidated disposition notification message including a Delivery and Read notification; and in case that the display indication is not received before expiry of the timer, transmitting, by the receiving MCData UE (102b), to the transmitting MCData UE (102a), a first disposition notification message including a Delivered notification, wherein a time interval associated with the timer for transmitting the consolidated disposition notification message or the first disposition notification message is configurable.
  6. The method of claim 5, further comprising: in case that the display indication is received based on reading of the SDS message at the receiving MCData UE after expiry of the timer, receiving, by the transmitting MCData UE (102a), from the receiving MCData UE (102b), a second disposition notification message including a Read notification.
  7. The method of claim 5, wherein the timer is stopped by the receiving MCData UE (102b) in case that the display indication is received based on reading of the SDS message at the receiving MCData UE, before expiry of the timer.
  8. The method of claim 5, wherein the SDS message including the disposition request type IE is transmitted by the receiving MCData UE (102b) via at least one of one-to-one communication and group communication; and wherein the consolidated disposition notification message and the first disposition notification message are transmitted via at least one of On-Network MCData communication system and Off-Network MCData communication system.
  9. A receiving Mission Critical Data, MCData, User Equipment, UE (102b), in a wireless communication system, comprising: a transceiver; and at least one processor configured to: control the transceiver to receive, from a transmitting MCData UE (102a), a short data service, SDS, message including disposition request type Information Element, IE, initiate a timer in case that the receiving MCData UE identifies that the disposition request type IE is set as Delivery and Read, identify whether a display indication is received by reading the SDS message before expiry of the timer, in case that the display indication is received before expiry of the timer, control the transceiver to transmit, to the transmitting MCData UE (102a), a consolidated disposition notification message including a Delivery and Read notification, and in case that the display indication is not received before expiry of the timer, control the transceiver to transmit, to the transmitting MCData UE (102a), a first disposition notification message including a Delivered notification, wherein a time interval associated with the timer for transmitting the consolidated disposition notification message or the first disposition notification message is configurable.
  10. The receiving MCData UE of claim 9, wherein the at least one processor is further configured to: in case that the display indication is received after expiry of the timer, control the transceiver to transmit, to the transmitting MCData UE (102a), a second disposition notification message including a Read notification.
  11. The receiving MCData UE of claim 9, wherein the at least one processor is further configured to: in case that the display indication is received before expiry of the timer, stop the timer.
  12. A wireless communication system, comprising a receiving Mission Critical Data, MCData, User Equipment, UE (102b) according to any of claim 9 to 11, and transmitting Mission Critical Data, MCData, User Equipment, UE (102a), comprising: a transceiver; and at least one processor configured to: control the transceiver to transmit, to the receiving MCData UE (102b), a short data service, SDS, message including a disposition request type Information Element, IE, which is set as Delivery and Read, wherein a timer is initiated at the receiving MCData UE, in case that a setting of the disposition request type IE as the Delivery and Read is identified at the receiving MCData UE, in case that a display indication is received based on reading of the SDS message at the receiving MCData UE before expiry of the timer, control the transceiver to receive, from the receiving MCData UE (102b), a consolidated disposition notification message including a Delivery and Read notification, and in case that the display indication is not received at the receiving MCData UE before expiry of the timer, control the transceiver to receive, from the receiving MCData UE (102b), a first disposition notification message including a Delivered notification.

Description

[Technical Field] The present disclosure relates to Mission Critical Data (MCData) communication system, and more particularly related to a method and system for managing Short Data Service (SDS) disposition notifications in a MCData communication system.. [Background Art] Public safety networks are used for Mission Critical (MC) Data/Voice/Video communications. The MC communication may include defined set of MCData services. Such MCData services typically build on existing third generation partnership project (3GPP) transport communication mechanisms provided by the evolved packet system (EPS) architectures to establish, maintain, and terminate the actual communication path(s) among the users. Typically, a MCData server provides centralized support for such MCData services. The MCData server further can facilitate or govern MCData communication among various users part of the network. In an alternate deployment, such MCData services can be off-network. In such deployments the MCData devices communicate directly with each other without a server for centralized support for the service. The MCData services are designed to provide one-to-one, one-to-many, and group communications between users. In the present scenario, the public safety community requires services beyond voice i.e. data and video applications. MCData makes frequent use of a set of capabilities and enablers that allows for many end user services to be built on a common platform. A Short data service (SDS) feature is one such capability for use in the MCData Service. The SDS can be used on its own or in combination with other services, or may be used by other services to realize certain features such as sharing of a location, presence-like data, and command instructions to perform specific operations. The SDS functionality may include one-to-one messaging or one-to-many or group messaging. Further the SDS messages can be a standalone SDS messages or part of a SDS session. The above information is presented as background information only to help the reader to understand the present invention. Applicants have made no determination and make no assertion as to whether any of the above might be applicable as prior art with regard to the present application. [Disclosure] [Technical Problem] Effective system and methods are necessary to support various features of SDS for reducing number of retransmissions for disposition notifications and to optimize the resource consumption for disposition requests and notifications. [Technical Solution] The principal object of the embodiments herein is to provide a method and system for managing short data service (SDS) disposition notifications in a Mission Critical Data (MCData) communication system. Another object of the embodiments herein is to provide a method for consolidating a "delivered" notification and a "read" notification at a receiving MCData UE into a single "delivered and read" notification upon receipt of a SDS message. Another object of the embodiments herein is to initiate a timer at the receiving MCData UE when a disposition request type Information Element (IE) in the SDS message is set as "Delivery and Read". Another object of the embodiments herein is to transmit a consolidated disposition notification to the transmitting MCData UE by stopping the timer when the SDS message is read before expiry of the timer. Another object of the embodiments herein is to provide a method for consolidated disposition notifications in an on-network MCData communication system for SDS. Yet another object of the embodiments herein is to provide a method for consolidated disposition notifications in an off-network MCData communication system for SDS. [Advantageous Effects] By the method of the present application, various features of SDS are supported for reducing number of retransmissions for disposition notifications and to optimize the resource consumption for disposition requests and notifications. [Description of Drawings] This invention is illustrated in the accompanying drawings, throughout which like reference letters indicate corresponding parts in the various figures. The embodiments herein will be better understood from the following description with reference to the drawings, in which: FIG. 1A illustrates an example on-network MCData communication system in which a receiving MCData UE transmits a consolidated disposition notification to a transmitting MCData UE, according to an embodiment as disclosed herein;FIG. 1B illustrates an example on-network MCData communication system in which a plurality of receiving MCData UEs transmit a consolidated disposition notification to the transmitting MCData UE, according to an embodiment as disclosed herein;FIG. 2 is an example off-network MCData communication system in which the receiving MCData UE transmits a consolidated disposition notification to the transmitting MCData UE, according to an embodiment as disclosed herein;FIG. 3 is an example off-network MCData