Method and device for downlink packet access signaling for time division duplex (tdd) mode of a wireless communication system

• US 20050117553A1
• Filed: 01/04/2002
• Published: 06/02/2005
• Est. Priority Date: 01/04/2002
• Status: Abandoned Application

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Yuan, Chen, Wang, Daqing
• Application Number:
  US10/500,790
• Publication Number:
  US 20050117553A1
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04B 7/2618 using hybrid code-time division multiple access [CDMA-TDMA]
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Abstract

The present invention provides a method, a device and a system for High-Speed Downlink Packet Access (HSDPA) for Time Division Duplex (TDD) mode of a wireless communication system, especially of a Universal Mobile Telecommunication System (UMTS) Terrestrial Radio Access Network (UTRAN) and more particular to a method, a device and a system employing a Paging Indicator Channel (PICH) for signaling High-Speed Downlink Packet Access (HSDPA) for Time Division Duplex (TDD) mode. The structure of Paging Indicator Channel (PICH) is modified to enable a transmission of a High-Speed Indicator (HI) to a certain addressed mobile terminal device initiating the High-Speed Downlink Packet Access (HSDPA).

Claims

1. A method for High-Speed Downlink Packet Access signaling for Time Division Duplex mode of a wireless communication system, comprising the following steps:

a base station sending indication information to a mobile terminal device (UE);

the mobile terminal device (UE) identified by the said indication information receiving signaling information;

said mobile terminal device, based on the said signaling information, decoding packet data information;

wherein a High-Speed Indicator designates a specific mobile terminal device accessible in a downlink channel,

characterized by the steps of;

including said High-Speed Indicator into the slot structure of a Paging Indicator Channel (PICH), said High-Speed Indicator comprising a plurality of identification bits, each identification bit being assigned.

2. A method according to claim 1, wherein said plurality of identification bits are four identification bits arranged in two pairs each of two bits on either side of and adjacent to a midamble area of said Paging Indicator Channel (PICH).

3. A method according to any one of the preceding claims claim 1, comprising the following further step:

dividing a plurality of mobile terminal devices upon a plurality of groups.

4. A method according to claim 3, comprising the following further step:

assigning certain periods of time to each group,

wherein each mobile terminal device of a group receives data transmitted within said periods of time assigned to said respective group via said Paging Indicator Channel (PICH).

5. A method according to claim 3, comprising the following further step:

assigning a High-Speed Indicator to each mobile terminal device of a group.

6. A method according to claim 4, wherein said periods of time of a group are assigned according to the data traffic of the group.

7. A method according to claim 1, comprising the following further step:

receiving information on said Paging Indicator Channel (PICH) by a mobile terminal device.

8. A method according to claim 1, comprising the following further step:

receiving signaling information on a High-Speed Shared Control Channel (HS-SCCH) by a mobile terminal device.

9. A method according to claim 7, comprising the following further step:

receiving and decoding data packets on a Downlink Shared Channel (DSCH) by a mobile terminal device,

wherein the receiving and decoding step employs said signaling information received on said High-Speed Shared Control Channel (HS-SCCH).

10. A method according to claim 1, comprising the following further step:

transmitting transmission related information.

11. A method according to claim 1, wherein said identification bits code a binary address of a mobile terminal device.

12. A method according to claim 1, wherein said identification bits code a logical address of a mobile terminal device.

13. A method according to claim 3, wherein said dividing a plurality of mobile terminal devices upon a plurality of groups is based on the data traffic.

14. A method according to claim 3, wherein said dividing a plurality of mobile terminal devices upon a plurality of groups is based on an N channel Hybrid Automatic Repeat Request scheme.

15. A computer program for executing a method for High-Speed Downlink Packet Access for Time Division Duplex mode of a wireless communication system, comprising program code means for carrying out each of the steps of claim 1 when said program is run on a computer, a network device, a mobile device, or an application specific integrated circuit.

16. A computer program product comprising program code means stored on a computer readable medium for carrying out each of the steps of the method for High-Speed Downlink Packet Access for Time Division Duplex mode of a wireless communication system of claim 1 when said program product is run on a computer, a network device, a mobile device, or an application specific integrated circuit.

17. A mobile terminal device for High-Speed Downlink Packet Access for Time Division Duplex mode of a wireless communication system, comprising means adapted to perform each of the steps of the method for High-Speed Downlink Packet Access for Time Division Duplex mode of a wireless communication system according to claim 1.

18. A wireless communication system for High-Speed Downlink Packet Access for Time Division Duplex mode, comprising means adapted to perform a method for High-Speed Downlink Packet Access for Time Division Duplex mode of a wireless communication system according to claim 1.