Communications device, infrastructure equipment and methods

1. A method for transmitting data by a communications device in a cell of a wireless communications network, the method comprising

receiving an indication of a plurality of configured grants, each of the configured grants allocating a sequence of communications resources for the transmission of the data in the cell by the communications device,

receiving an indication of a mapping between each of a plurality of logical channels and one or more of the plurality of configured grants,

transmitting a first portion of the data associated with a first logical channel of the plurality of logical channels using communications resources allocated by one of the plurality of configured grants, in accordance with the mapping, and

receiving a remapping indication to modify the previously transmitted mapping between each of the plurality of logical channels and one or more of the plurality of configured grants, wherein the remapping indication includes a subsequent mapping of data associated with a logical channel to communications resources associated with a particular configured grant.

2. The method according to claim 1 , the method comprising

transmitting a second portion of the data associated with a second logical channel of the plurality of logical channels using communications resources allocated by one of the plurality of configured grants, in accordance with the mapping.

3. The method according to claim 2 , the method comprising

associating the first portion of the data with the first logical channel, and the second portion of the data with a second logical channel.

4. The method according to claim 1 , wherein the indication of the plurality of configured grants and the indication of the mapping between each of the plurality of logical channels and the one or more of the plurality of configured grants are received in a radio resource control, RRC, reconfiguration message.

5. The method according to claim 1 , wherein receiving the indication of the plurality of configured grants comprises receiving a message, the message comprising

a plurality of configured grant message elements each comprising an indication of one of the plurality of configured grants and having an associated configured grant index indication, the plurality of configured grant message elements providing the indication of the plurality of configured grants.

6. The method according to claim 1 , wherein receiving the indication of the plurality of configured grants comprises receiving a message, the message comprising

one or more configured grant message elements each comprising an indication of one of the plurality of configured grants and having an associated configured grant index indication, and

one or more configured grant message elements each comprising an indication of one of the plurality of configured grants and having no associated configured grant index indication, the method comprising

determining an index value associated with each of the plurality of configured grants.

7. The method according to claim 6 , wherein

the one or more configured grant message elements having no associated configured grant index indication are each within a message element for conveying information regarding a bandwidth part.

8. The method according to claim 6 , wherein

the one or more configured grant message elements having an associated configured grant index indication are within a message element for conveying parameters for the operation of one or more RLC protocol entities.

9. The method according to claim 1 , wherein the communications resources allocated by each of the configured grants is within with one of a plurality of bandwidth parts, each of the plurality of bandwidth parts defining a frequency range within a system bandwidth of the cell of the wireless communications network, the method comprising:

receiving an indication of the plurality of bandwidth parts.

10. The method according to claim 9 , wherein the indication of the plurality of bandwidth parts is received in a radio resource control, RRC, reconfiguration message.

11. The method according to claim 10 , wherein the RRC reconfiguration message comprises a portion associated with a serving cell and a portion associated with one or more radio bearers comprising the indication of the mapping between each of the plurality of logical channels.

12. The A method according to claim 1 , the method comprising:

receiving an indication of an identity associated with one of the plurality of configured grants,

receiving control information within a transmission having a destination address corresponding to the identity, and

determining a status of the one of the plurality of configured grants based on the control information.

13. The method according to claim 1 , wherein

receiving an indication of a plurality of configured grants comprises receiving from an infrastructure equipment of the wireless communications network the indication of the plurality of configured grants and

transmitting a first portion of the data comprises transmitting the first portion of the data to the infrastructure equipment.

14. A method for receiving data by an infrastructure equipment in a cell of a wireless communications network, the method comprising

transmitting an indication of a plurality of configured grants, each of the configured grants allocating a sequence of communications resources for the transmission of the data in the cell by a communications device,

transmitting an indication of a mapping between each of a plurality of logical channels and one or more of the plurality of configured grants,

receiving a first portion of the data associated with a first logical channel of the plurality of logical channels using communications resources allocated by one of the plurality of configured grants, in accordance with the mapping, and

transmitting a remapping indication to modify the previously transmitted mapping between each of the plurality of logical channels and one or more of the plurality of configured grants, wherein the remapping indication includes a subsequent mapping of data associated with a logical channel to communications resources associated with a particular configured grant.

15. The method according to claim 14 , the method comprising

receiving a second portion of the data associated with a second logical channel of the plurality of logical channels and transmitted by the communications device using communications resources allocated by one of the plurality of configured grants, in accordance with the mapping.

16. The method according to claim 15 , the method comprising

associating the first portion of the data with the first logical channel, and the second portion of the data with a second logical channel.

17. The method according to claim 14 , wherein the indication of the plurality of configured grants and the indication of the mapping between each of the plurality of logical channels and the one or more of the plurality of configured grants are transmitted in a radio resource control, RRC, reconfiguration message.

18. The method according to claim 14 , wherein transmitting the indication of the plurality of configured grants comprises transmitting a message, the message comprising

a plurality of configured grant message elements each comprising an indication of one of the plurality of configured grants and having an associated configured grant index indication, the plurality of configured grant message elements providing the indication of the plurality of configured grants.

19. The method according to claim 14 , wherein transmitting the indication of the plurality of configured grants comprises transmitting a message, the message comprising

one or more configured grant message elements each comprising an indication of one of the plurality of configured grants and having an associated configured grant index indication, and

one or more configured grant message elements each comprising an indication of one of the plurality of configured grants and having no associated configured grant index indication, the method comprising

determining an index value associated with each of the plurality of configured grants.

20. Circuitry for a communications device for use in a wireless communications network, the wireless communications network comprising an infrastructure equipment providing a wireless access interface, the circuitry comprising

transmitter circuitry configured to transmit data via the wireless access interface,

receiver circuitry configured to receive signals, and

controller circuitry configured to control the transmitter circuitry and the receiver circuitry so that the communications device is operable:

to receive an indication of a plurality of configured grants, each of the configured grants allocating a sequence of communications resources for the transmission of the data in the cell by the communications device,

to receive an indication of a mapping between each of a plurality of logical channels and one or more of the plurality of configured grants, and

to transmit a first portion of the data associated with a first logical channel of the plurality of logical channels using communications resources allocated by one of the plurality of configured grants, in accordance with the mapping, and

to receive a remapping indication to modify the previously transmitted mapping between each of the plurality of logical channels and one or more of the plurality of configured grants, wherein the remapping indication includes a subsequent mapping of data associated with a logical channel to communications resources associated with a particular configured grant.