Method and apparatus for downlink data arrival

• US 8,619,684 B2
• Filed: 04/30/2009
• Issued: 12/31/2013
• Est. Priority Date: 05/01/2008
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Meylan, Arnaud, Montojo, Juan, Gaal, Peter
• Primary Examiner(s): Elpenord, Candal
• Application Number:
  US12/433,636
• Publication Number:
  US 20090274077A1
• Time in Patent Office: 1,706 Days
• Field of Search: 370/280, 370/328, 370329-332, 370/390, 370/335, 370/311, 370/350, 370/503, 370465-466, 370342-343, 455/450
• US Class Current: 370/329
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
• 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 72/30 Resource management for broadcast services

Abstract

A method is provided to generate messages for wireless communications. The method includes encapsulating a first message protocol within the framework of a second message protocol and generating a message from the first message protocol and the second message protocol. The method transmits the first message protocol to an allocation space designated for the second message protocol.

Claims

1. A method to generate messages for wireless communications, comprising:

encapsulating a first message protocol within a framework of a second message protocol;

generating a message from the first message protocol and the second message protocol; and

signaling a downlink operation by transmitting the first message protocol in a resource search space of the second message protocol without using an additional bit to signal the operation, wherein the encapsulated first message protocol being in the resource search space of the second message protocol signals the downlink operation; and

receiving a signaled uplink operation by receiving the second message protocol in a resource search space of the first message protocol without using an additional bit to signal the uplink operation, wherein the encapsulated second message protocol being in the resource search space of the first message protocol signals the uplink operation.

2. The method of claim 1, wherein the first message protocol is associated with a user equipment specific search space and the second message protocol is associated with a common search space.

3. The method of claim 1, wherein the first message protocol is associated with a common search space and the second message protocol is associated with a user equipment specific search space.

4. The method of claim 1, wherein at least one of the downlink operation or uplink operation is a resynchronization between the base station and the user equipment.

5. The method of claim 1, wherein the message is transmitted as part of a Physical Downlink Control Channel (PDCCH) protocol.

6. The method of claim 5, wherein the message is generated to indicate that downlink data is ready to be sent from the base station to the user equipment.

7. The method of claim 6, wherein the message includes an access preamble.

8. The method of claim 6, wherein the message includes an allocated time location for frequency division duplex (FDD) and time division duplex (TDD).

9. The method of claim 6, wherein the message includes an allocated frequency location for TDD.

10. The method of claim 6, wherein the message includes an allocated offset to an initial transmission power.

11. The method of claim 10, further comprising performing a contention free access or a contention-based random access.

12. The method of claim 6, wherein the message includes a broadcast control channel field.

13. The method of claim 12, further comprising processing one or more resource blocks.

14. The method of claim 6, wherein the message includes a random access channel field.

15. The method of claim 6, wherein the message includes a paging field.

16. A communications apparatus, comprising:

means for formatting a first message protocol within a framework of a second message protocol;

means for generating at least one message from the first message protocol; and

means for signaling a downlink operation between a base station and a user equipment by transmitting the first message protocol in a resource search space of the second message protocol without using an additional bit to signal the operation, wherein the first message protocol being within the resource search space of the second message protocol signals the downlink operation and

means for receiving a signaled uplink operation by receiving the second message protocol in a resource search space of the first message protocol without using an additional bit to signal the uplink operation, wherein the encapsulated second message protocol being in the resource search space of the first message protocol signals the uplink operation.

17. A method to process messages for wireless communications, comprising:

processing a first message protocol within a framework of a second message protocol;

processing a message from the first message protocol and the second message protocol; and

receiving the first message protocol in a resource search space designated for the second message protocol, the first message protocol being in the resource search space of the second message protocol signals a downlink operation without using an additional bit to signal the downlink operation; and

signaling the second message protocol in a resource search space designated for the first message protocol, the second message protocol being in the resource search space of the first message protocol signals an uplink operation without using an additional bit to signal the uplink operation.

18. The method of claim 17, wherein the first message protocol is associated with a user equipment specific search space and the second message protocol is associated with a common search space.

19. The method of claim 17, wherein the first message protocol is associated with a common search space and the second message protocol is associated with a user equipment specific search space.