Method and apparatus to allocate radio resources for transmitting a message part in an enhanced RACH

Patent metadata

Field	Value
Publication number	US-11412504-B2
Application number	US-202016847387-A
Country	US
Kind code	B2
Filing date	Apr 13, 2020
Priority date	Sep 27, 2007
Publication date	Aug 9, 2022
Grant date	Aug 9, 2022

Abstract

A method and apparatus for allocating resources to a wireless transmit receive unit (WTRU) includes the WTRU transmitting a signature sequence to a Node B, receiving an acknowledge signal from the Node B, and determining a default resource index. The resource index is associated with enhanced dedicated channel (E-DCH) parameters.

First claim

What is claimed is:

1. A method, performed by a wireless transmit receive unit (WTRU), the method comprising:
receiving channel resource allocation information indicating: (1) physical random access channel (PRACH) resources, (2) sets of uplink (UL) data channel resource allocation parameters for an UL data transmission, and (3) correspondence between: (i) a PRACH resource for a PRACH transmission, and (ii) at least one set of UL data channel resource allocation parameters for the UL data transmission;
determining transmission resources for the UL data transmission according to the correspondence between the PRACH resource for the PRACH transmission and the at least one set of the UL data channel resource allocation parameters for the UL data transmission; and
transmitting the PRACH transmission and the UL data transmission, the UL data transmission being transmitted using the determined transmission resources.

2. The method of claim 1 , wherein the channel resource allocation information indicating the sets of UL data channel resource allocation parameters for the UL data transmission is received via a system information block (SIB).

3. The method of claim 1 , wherein the sets of UL data channel resource allocation parameters for the UL data transmission are associated with an access class of the WTRU.

4. The method of claim 1 , wherein the sets of UL data channel resource allocation parameters for the UL data transmission include common UL data channel resource allocation parameters.

5. The method of claim 1 , wherein the UL data transmission is transmitted after a RACH preamble transmission phase of the WTRU.

6. The method of claim 5 , wherein the UL data transmission includes a Random Access Channel (RACH) message associated with the PRACH transmission.

7. The method of claim 1 , further comprising randomly selecting a signature sequence from among a plurality of signature sequences that are each associated with a plurality of UL data channel resources.

8. The method of claim 1 , wherein the sets of UL data channel resource allocation parameters for the UL data transmission are used only for transmitting UL data transmissions on UL data channels.

9. The method of claim 7 , further comprising receiving information indicating an association between the randomly selected signature sequence and UL data channel resources for transmitting the UL data transmission.

10. The method of claim 7 , wherein the randomly selected signature sequence is associated with the PRACH resource.

11. A wireless transmit receive unit (WTRU) comprising circuitry, including a transmitter, a receiver, a processor and memory, configured to:
receive channel resource allocation information indicating: (1) physical random access channel (PRACH) resources, (2) sets of uplink (UL) data channel resource allocation parameters for a UL data transmission, and (3) correspondence between: (i) a PRACH resource for a PRACH transmission, and (ii) at least one set of UL data channel resource allocation parameters for the UL data transmission;
determine transmission resources for the UL data transmission according to the correspondence between the PRACH resource for the PRACH transmission and the at least one set of the UL data channel resource allocation parameters for the UL data transmission; and
transmit the PRACH transmission and the UL data transmission, the UL data transmission being transmitted using the determined transmission resources.

12. The WTRU of claim 11 , wherein the channel resource allocation information indicating the sets of UL data channel resource allocation parameters for the UL data transmission is received via a system information block (SIB).

13. The WTRU of claim 11 , wherein the sets of UL data channel resource allocation parameters for the UL data transmission are associated with an access class of the WTRU.

14. The WTRU of claim 11 , wherein the sets of UL data channel resource allocation parameters for the UL data transmission include common UL data channel resource allocation parameters.

15. The WTRU of claim 11 , wherein the transmitter is configured to transmit the UL data transmission after a RACH preamble transmission phase of the WTRU.

16. The WTRU of claim 15 , wherein the UL data transmission includes a Random Access Channel (RACH) message associated with the PRACH transmission.

17. The WTRU of claim 11 , wherein the processor is further configured to randomly select a signature sequence from among a plurality of signature sequences that are each associated with a plurality of UL data channel resources.

18. The WTRU of claim 11 , wherein the sets of UL data channel resource allocation parameters for the UL data transmission are used only for transmitting UL data transmissions on UL data channels.

19. The WTRU of claim 17 , wherein the processor is further configured to receive information indicating an association between the randomly selected signature sequence and UL data channel resources for transmitting the UL data transmission.

20. The WTRU of claim 17 , wherein the randomly selected signature sequence is associated with the PRACH resource.

Assignees

• Interdigital Patent Holdings Inc

Inventors

• Pelletier Benoit
• Zeira Eldad
• Marinier Paul
• Cave Christopher R
• Di Girolamo Rocco

Classifications

• H04W72/23 Primary

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

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L1/1607

  Details of the supervisory signal · CPC title

• H04L1/1877 Primary

  for semi-reliable protocols, e.g. for less sensitive applications like streaming video (buffer level management for video bitstream control arrangements H04N21/44004) · CPC title

• H04L1/1893

  Physical mapping arrangements (physical resource mapping in general H04L5/00) · CPC title