COMMUNICATING DATA BLOCK IN WIRELESS COMMUNICATION SYSTEM

• US 20100118820A1
• Filed: 01/19/2010
• Published: 05/13/2010
• Est. Priority Date: 01/03/2005
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Fischer, Patrick, LEE, Young-Dae, Chun, Sung-Duck
• Granted Patent: US 8,400,964 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
• CPC Class Codes: H04L 69/321 Interlayer communication protocols or service data unit [SDU] definitions; Interfaces between layers
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

A method of transmitting/receiving a data block is disclosed. In receiving at least one data block multiplexed to one physical channel, the present invention includes the steps of receiving control information for a data block transmission, checking whether there is a necessity for configuring a table having combination information of data block sizes internally, and configuring the table having the combination information of the data block sizes for a data block reception according to a result of the checking step. Accordingly, the present invention internally configures the CTFC information without receiving separate CTFC information, thereby facilitating the reception of data blocks.

Claims

1. A method of receiving information through N higher level channels mapped to one lower level channel in a wireless communication system, the method comprising:

receiving, at a user equipment from a network, a message comprising information identifying each of the N higher level channels and at least one transport format (TF) applicable to each of the N higher level channels;

defining a default transport format combination set (TFCS) for the N higher level channels mapped to the one lower level channel for use in the user equipment for a specific service, wherein the default TFCS is defined by a manner predetermined by the user equipment and the network to include only a first type transport format combination (TFC) used when no higher level channel among the N higher level channels is transmitted through the one lower level channel and a second type TFC used when only one higher level channel of the N higher level channels is transmitted through the one lower level channel; and

receiving the one lower level channel with a transport format combination indicator (TFCI) defined by the same manner between the user equipment and the network based on the default TFCS.

2. The method of claim 1, wherein the second type TFC comprises i^th group of TFCS (i=1, 2, . . . , N) used when only an i^th higher level channel among the N higher level channels is transmitted through the one lower layer channel.

3. The method of claim 2, wherein:

the at least one transport format (TF) applicable to the i^th higher level channel include TF0, TF1, TF2, . . . , TFmax; and

TF0 indicates the i^th higher level channel does not transmit through the one lower level channel.

4. The method of claim 3, wherein:

the default TFCS for the N higher level channels has a format of (TF₁, TF₂, . . . , TF_i, . . . TF_N); and

TF_i corresponds to a transport format for the i^th higher level channel among the N higher level channels.

5. The method of claim 4, wherein the first type TFC comprises (TF0, TF0, . . . , TF0, . . . TF0).

6. The method of claim 4, wherein the i^th group of TFCS (i=1, 2, . . . , N) comprises (TF0, TF0, . . . , TF1, . . . TF0), (TF0, TF0, . . . , TF2, . . . TF0), . . . , and (TF0, TF0, . . . , TFmax, . . . TF0).

7. The method of claim 1, wherein the specific service comprises a multimedia broadcast/multicast service (MBMS).

8. The method of claim 1, wherein the default TFCS enables the user equipment to receive the one lower level channel with the TFCI defined based on the default TFCS without receiving calculated transport format combination (CTFC) information from the network.

9. The method of claim 1, wherein the N higher level channels comprises N transport channels.

10. The method of claim 1, wherein the lower level channel comprises a physical channel.

11. A user equipment for receiving information through N higher level channels mapped to one lower level channel in a wireless communication system, the user equipment comprising:

an antenna for receiving a message comprising information identifying each of the N higher level channels and at least one transport format (TF) applicable to each of the N higher level channels, and the one lower level channel with a transport format combination indicator (TFCI);

a radio frequency unit connected to the antenna and configured to process the one lower level channel; and

a processor unit operationally connected to the radio frequency unit, the processor configured to;

define a default transport format combination set (TFCS) for the N higher level channels mapped to the one lower level channel for use in the user equipment for a specific service by a manner predetermined by the user equipment and the network to include only a first type transport format combination (TFC) used when no higher level channel among the N higher level channels is transmitted through the one lower level channel and a second type TFC used when only one higher level channel of the N higher level channels is transmitted through the one lower level channel, and

process the received one lower level channel using the received TFCI defined by the same manner between the user equipment and the network based on the default TFCS.

12. The user equipment of claim 11, wherein the second type TFC comprises i^th group of TFCS (i=1, 2, . . . , N) used when only an i^th higher level channel among the N higher level channels is transmitted through the one lower layer channel.

13. The user equipment of claim 12, wherein:

the at least one transport format (TF) applicable to the i^th higher level channel include TF0, TF1, TF2, . . . , TFmax; and

TF0 indicates the i^th higher level channel does not transmit through the one lower level channel.

14. The user equipment of claim 13, wherein:

the default TFCS for the N higher level channels has a format of (TF₁, TF₂, . . . , TF_i, . . . TF_N); and

TF_i corresponds to a transport format for the i^th higher level channel among the N higher level channels.

15. The user equipment of claim 14, wherein the first type TFC comprises (TF0, TF0, . . . , TF0, . . . TF0).

16. The user equipment of claim 14, wherein the i^th group of TFCS (i=1, 2, . . . , N) comprises (TF0, TF0, . . . , TF1, . . . TF0), (TF0, TF0, . . . , TF2, . . . TF0), . . . , and (TF0, TF0, . . . , TFmax, . . . TF0).

17. The user equipment of claim 11, wherein the specific service comprises a multimedia broadcast/multicast service (MBMS).

18. The user equipment of claim 11, wherein the default TFCS enables the user equipment to receive the one lower level channel with the TFCI defined based on the default TFCS without receiving calculated transport format combination (CTFC) information from the network.

19. The user equipment of claim 11, wherein the N higher level channels comprises N transport channels.

20. The user equipment of claim 11, wherein the lower level channel comprises a physical channel.