System and method for communicating information in a wireless network

• US 8,824,598 B2
• Filed: 12/18/2012
• Issued: 09/02/2014
• Est. Priority Date: 12/18/2012
• Status: Active Grant

• Current Assignee: Vivo Mobile Communication Co., Ltd. (Vivo Communication Technology Co. Ltd.)
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Dimou, Konstantinos, Yang, Yu
• Primary Examiner(s): NGUYEN, LEON VIET Q
• Application Number:
  US13/717,864
• Publication Number:
  US 20140169500A1
• Time in Patent Office: 623 Days
• US Class Current: 375/316
• CPC Class Codes: H04L 1/0014 by adapting the source coding
• CPC Class Codes: H04L 1/0025 Transmission of mode-switching indication
• CPC Class Codes: H04L 1/0032 Without explicit signalling
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1893 Physical mapping arrangements physical resource mapping in general H04L5/00
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 76/10 Connection setup

Abstract

A method for receiving data transmitted wirelessly includes receiving information indicating a device type associated with a wireless communication device and, based on the device type associated with the wireless communication device, deciding to request information indicating a set of possible data values associated with transmissions from the wireless communication device. The method further includes receiving information indicating the set of possible data values and receiving a data transmission from the wireless communication device that comprises encoded data bits. Additionally, the method includes attempting to decode the data transmission using the set of possible data values.

Claims

1. A method for receiving data transmitted wirelessly, comprising:

receiving information indicating a device type associated with a wireless communication device;

based on the device type associated with the wireless communication device, deciding to request information indicating a set of possible data values associated with transmissions from the wireless communication device;

receiving information indicating the set of possible data values;

receiving a data transmission from the wireless communication device that comprises encoded data bits; and

attempting to decode the data transmission using the set of possible data values;

wherein the data transmission comprises a second data transmission, and further comprising;

receiving a first data transmission from the wireless communication device, wherein the first data transmission comprises a set of data bits encoded in accordance with a first encoding scheme;

attempting to decode the first data transmission;

determining whether the first data transmission was successfully decoded;

in response to determining that the first data transmission was not successfully decoded, transmitting feedback to the wireless communication device indicating that the first data transmission was not successfully decoded;

receiving the second data transmission from the wireless communication device, wherein the second data transmission comprises the set of data bits encoded in accordance with a second encoding scheme; and

attempting to decode the second data transmission using the set of possible data values, and

wherein the second encoding scheme comprises an entropy encoding scheme according to which each of the possible data values is associated with a respective code word based on a likelihood of transmission for that possible data value.

2. The method of claim 1, wherein under the second encoding scheme a most likely value to be transmitted is associated with a shortest code word.

3. The method of claim 1, wherein obtaining information indicating the set of possible data values comprises:

transmitting a request for possible data values to the wireless communication device; and

receiving from the wireless communication device information indicating the set of possible data values.

4. The method of claim 1, wherein determining whether the first data transmission was successfully decoded comprises performing a cyclic redundancy check on the decoded first data transmission.

5. The method of claim 1, wherein attempting to decode the second data transmission comprises:

decoding the second transmission in accordance with a channel coding scheme; and

decoding the second transmission in accordance with a source coding scheme according to which each of the possible data values is associated with a code word.

6. A method for receiving data transmitted wirelessly, comprising:

encoding a set of data bits in accordance with a first encoding scheme;

transmitting a first data transmission to a radio network node, wherein the first data transmission includes the set of data bits encoded in accordance with the first encoding scheme;

receiving feedback information indicating that the first data transmission was not successfully decoded by the radio network node;

in response to the feedback information;

encoding the set of data bits in accordance with a second encoding scheme according to which each of a set of possible data values for the set of data bits is associated with a code word based on a likelihood of transmission;

transmitting a second data transmission to the radio network node, wherein the second data transmission comprises the set of data bits encoded in accordance with the second encoding scheme;

wherein the method further comprises;

receiving a request for possible data values from the radio network node; and

transmitting information indicating the set of possible data values to the radio network node, and

wherein the second encoding scheme comprises an encoding scheme according to which a most likely value to be transmitted is associated with a shortest code word.

7. The method of claim 6, wherein the second encoding scheme comprises an encoding scheme according to which each of the possible data values for the set of data bits is associated with a respective code word having a length that depends on a likelihood of that possible data value being transmitted.

8. The method of claim 7, wherein encoding the set of data bits in accordance with the second encoding scheme comprises generating a first code word based on the set of data bits, and wherein the method further comprises encoding the first code word in accordance with a third encoding scheme, wherein the third encoding scheme comprises a channel coding scheme that produces a second code word having a predetermined length regardless of the length of the first code word.

9. The method of claim 8, wherein the third encoding scheme comprises a linear block code.

10. An apparatus for receiving data transmitted wirelessly, comprising:

a receiver configured to receive information transmitted wirelessly by a wireless communication device;

a processor configured to;

receive information indicating a device type associated with a wireless communication device;

based on the device type associated with the wireless communication device, decide to request information indicating a set of possible data values associated with transmissions horn the wireless communication device;

receive information indicating the set of possible data values;

receive a data transmission from the wireless communication device that comprises encoded data bits; and

attempt to decode the data transmission using the set of possible data values;

wherein the data transmission comprises a second data transmission, and wherein the processor is further configured to;

receive a first data transmission from the wireless communication device, wherein the first data transmission comprises a set of data bits encoded in accordance with a first encoding scheme;

attempt to decode the first data transmission;

determine whether the first data transmission was successfully decoded;

in response to determining that the first data transmission was not successfully decoded, transmit feedback to the wireless communication device indicating that the first data transmission was not successfully decoded;

receive the second data transmission from the wireless communication device, wherein the second data transmission comprises the set of data bits encoded in accordance with a second encoding scheme; and

attempt to decode the second data transmission using the set of possible data values, and

wherein the second encoding scheme comprises an entropy encoding scheme according to which each of the possible data values is associated with a respective code word based on a likelihood of transmission for that possible data value.

11. The apparatus of claim 10, wherein, under the second encoding scheme, a most likely value to be transmitted is associated with a shortest code word.

12. The apparatus of claim 10, wherein the processor is configured to obtain information indicating the set of possible data values by:

transmitting a request for possible data values to the wireless communication device; and

receiving from the wireless communication device information indicating the set of possible data values.

13. The apparatus of claim 10, wherein the processor is configured to determine whether the first data transmission was successfully decoded by performing a cyclic redundancy check on the decoded first data transmission.

14. The apparatus of claim 10, wherein the processor is configured to attempt to decode the second data transmission by:

decoding the second transmission in accordance with a channel coding scheme; and

decoding the second transmission in accordance with a source coding scheme according to which each of the possible data values is associated with a code word.

15. An apparatus for receiving data transmitted wirelessly, comprising:

a receiver configured to receive information transmitted wirelessly by a wireless communication device;

a processor configured to;

encode a set of data bits in accordance with a first encoding scheme;

transmit a first data transmission to a radio network node, wherein the first data transmission includes the set of data bits encoded in accordance with the first encoding scheme;

receive feedback information indicating that the first data transmission was not successfully decoded by the radio network node;

in response to the feedback information;

encode the set of data bits in accordance with a second encoding scheme according to which each of a set of possible data values for the set or data bits is associated with a code word based on a likelihood of transmission;

transmit a second data transmission to the radio network node, wherein the second data transmission comprises the set of data bits encoded in accordance with the second encoding scheme;

wherein the second encoding scheme comprises an entropy encoding scheme according to which each of the possible data values is associated with a respective code word based on a likelihood of transmission for that possible data value.

16. The apparatus of claim 15, wherein the processor is further configured to:

receive a request for possible data values from the radio network node; and

transmit information indicating the set of possible data values to the radio network node.