Efficient coding switching and modem resource utilization in wireless communication systems

• US 10,206,176 B2
• Filed: 09/06/2017
• Issued: 02/12/2019
• Est. Priority Date: 09/06/2016
• Status: Active Grant

• Current Assignee: MediaTek, Inc.
• Original Assignee: MediaTek, Inc.
• Inventors: Wu, Wei-De, Liao, Pei-Kai, Lin, Hsuan-Li, Lin, Shiang-Jiun, Chen, Wei-Jen, Tseng, Li-Chuan
• Primary Examiner(s): Gonzales, April G
• Application Number:
  US15/697,423
• Publication Number:
  US 20180070302A1
• Time in Patent Office: 524 Days
• Field of Search: 455574
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0039 Frequency-contiguous, i.e. with no allocation of frequencies for one user or terminal between the frequencies allocated to another
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0219 where the power saving management affects multiple terminals
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 52/028 switching on or off only a part of the equipment circuit blocks
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Concepts and examples pertaining to efficient coding switching and modem resource utilization in wireless communication systems are described. A processor of a modem of a user equipment (UE), configured with at least a first-capacity decoder and at least a second-capacity decoder, receives a common virtual carrier (CVC), a dedicated virtual carrier (DVC), or both. The CVC contains common information shared by multiple UEs, control information for the UE, and/or data information related to first data destined for the UE. The DVC contains control information for the UE, the first data, or a combination thereof. The first-capacity decoder decodes data of a small size up to a low data rate. The second-capacity decoder decodes data of a large size up to a high data rate. The processor determines whether to decode the first data using the first-capacity decoder or the second-capacity decoder based on the data information in the CVC.

Claims

1. A method, comprising:

receiving, by a processor of a modem of a user equipment (UE) configured with at least a first-capacity decoder and at least a second-capacity decoder, a common virtual carrier (CVC), a dedicated virtual carrier (DVC), or both, wherein;

the CVC contains common information shared by a plurality of UEs in a network, control information for the UE, data information related to first data destined for the UE, or a combination thereof,

the DVC contains control information for the UE, the first data, or a combination thereof,

the first-capacity decoder is capable of decoding data of a first data size up to a first data rate,

the second-capacity decoder is capable of decoding data of a second data size up to a second data rate,

the second data size is greater than the first data size, and

the second data rate is greater than the first data rate; and

determining, by the processor, whether to decode the first data using the first-capacity decoder or to decode the first data using the second-capacity decoder based on the data information or the control information.

2. The method of claim 1, wherein the CVC comprises a block of physically contiguous radio frequency (RF) resources within a component carrier, wherein the common information in the CVC comprises one or more beacon signals, system information, common physical layer control information, dedicated control information, data, or a combination thereof, and wherein the DVC is configurable by radio resource control (RRC)-layer signaling.

3. The method of claim 1, wherein the determining whether to decode the first data using the first-capacity decoder or to decode the first data using the second-capacity decoder comprises, for each time period of a plurality of consecutive time periods, performing operations comprising:

enabling the second-capacity decoder for a first duration; and

performing at least one of;

decoding the first data using the second-capacity decoder responsive to a determination that a size of the first data is greater than the first data size;

disabling the second-capacity decoder at an end of a second duration that follows the first duration responsive to a determination that a size of the first data is not greater than the first data size; and

continuing to use the second-capacity decoder to decode second data responsive to a determination during the second duration that a size of the second data is greater than the first data size.

4. The method of claim 3, wherein the determining whether to decode the first data using the first-capacity decoder or to decode the first data using the second-capacity decoder further comprises:

following the disabling of the second-capacity decoder at the end of the second duration, determining whether third data, destined for the UE and received by the UE after receiving the first data, has a size greater than the first data size; and

performing either of;

enabling the second-capacity decoder to decode the third data responsive to a determination that there is the third data destined for the UE with a size greater than the first data size;

or

decoding the third data using the first-capacity decoder responsive to a determination that the size of the third data is not greater than the first data size.

5. The method of claim 1, further comprising:

performing either of;

enabling, by the processor, the first-capacity decoder to decode the first data responsive to a determination to decode the first data using the first-capacity decoder based on the data information indicating a size of the first data less than the first data size;

or

enabling, by the processor, the second-capacity decoder to decode the first data responsive to a determination to decode the first data using the second-capacity decoder based on the data information indicating a size of the first data greater than the first data size.

6. The method of claim 1, further comprising:

receiving, by the processor, a dedicated virtual carrier (DVC) containing the first data destined for the UE; and

determining, by the processor, whether to decode the DVC using the first-capacity decoder or to enable the second-capacity decoder to decode the first data using the second-capacity decoder based on the data information or the control information.

7. The method of claim 6, wherein the first-capacity decoder either shares a common part of a physical resource with the second-capacity decoder or is a portion of the second-capacity decoder.

8. The method of claim 6, further comprising:

receiving, by the processor, high-layer signaling indicating a change in the CVC, the DVC, or both; and

adjusting, by the processor, utilization of the first-capacity decoder and the second-capacity decoder responsive to the receiving of the high-layer signaling.

9. The method of claim 8, wherein the adjusting of the utilization of the first-capacity decoder and the second-capacity decoder comprises:

switching utilization of the second-capacity decoder and the first-capacity decoder by performing either of;

disabling the second-capacity decoder and enabling the first-capacity decoder to perform decoding using the first-capacity decoder;

or

enabling the second-capacity decoder and disabling the first-capacity decoder to perform decoding using the second-capacity decoder.

10. The method of claim 1, further comprising:

receiving, by the processor from the network, high-layer signaling indicating a plurality of parameters comprising a first duration, a second duration and a total duration; and

during the total duration, performing, by the processor, operations comprising;

enabling the second-capacity decoder for at least the first duration;

determining whether any second data destined for the UE is to be received during the first duration or the second duration following the first duration and that a size of the second data is greater than the first data size;

decoding the second data using the second-capacity decoder upon a determination that the second data is to be received during the first duration or the second duration; and

continuing to decode the second data using the second-capacity decoder when the second data is also to be received after the first duration and the second duration.

11. The method of claim 10, further comprising:

computing, by the processor, a third duration as a difference between the total duration and a sum of the first duration and the second duration; and

during the total duration, performing, by the processor, operations comprising;

enabling the first-capacity decoder and disabling the second-capacity decoder responsive to a determination that the second data is not to be received during the first duration or the second duration and that the size of the second data is no greater than the first data size; and

decoding the second data using the first-capacity decoder as the second data is received during the third duration.

12. The method of claim 1, further comprising:

switching, by the processor, between the first-capacity decoder and the second-capacity decoder to decode further data destined for the UE based on;

total amount of data in the CVC, the control information contained in the CVC, a semi-static configuration in the CVC, or a combination thereof in an event that no DVC is received, or

total amount of data in the DVC, the control information contained in the DVC, a semi-static configuration in the DVC, or a combination thereof in an event that the DVC is received.

13. The method of claim 12, wherein the semi-static configuration in the CVC comprises an explicit restriction or an implicit restriction on data size, wherein the implicit restriction specifies either or both of a maximal modulation order and a maximal spatial layer number in a virtual carrier configuration, and wherein the explicit restriction indicates whether the first-capacity decoder or the second-capacity decoder is to be used per virtual carrier.

14. The method of claim 12, wherein the semi-static configuration in the DVC comprises an explicit restriction or an implicit restriction on data size, wherein the implicit restriction specifies either or both of a maximal modulation order and a maximal spatial layer number in a virtual carrier configuration, and wherein the explicit restriction indicates whether the first-capacity decoder or the second-capacity decoder is to be used per virtual carrier.

15. An apparatus, comprising:

a modem capable of receiving and transmitting signals representative of information and data, the modem comprising at least a first-capacity decoder and at least a second-capacity decoder, the first-capacity decoder capable of decoding data of a first data size up to a first data rate, the second-capacity decoder capable of decoding data of a second data size up to a second data rate, the second data size greater than the first data size, the second data rate greater than the first data rate; and

a processor coupled to control operations of the modem, the processor capable of performing operations comprising;

receiving, via the modem from a network, a common virtual carrier (CVC), a dedicated virtual carrier (DVC), or both, wherein;

the CVC contains common information shared by a plurality of UEs in the network, control information for the UE, data information related to first data destined for the UE, or a combination thereof, and

the DVC contains control information for the UE, the first data, or a combination thereof; and

determining whether to decode the first data using the first-capacity decoder or to decode the first data using the second-capacity decoder based on the data information or the control information.

16. The apparatus of claim 15, wherein the CVC comprises a block of physically contiguous radio frequency (RF) resources within a component carrier, wherein the common information in the CVC comprises one or more beacon signals, system information, common physical layer control information, dedicated control information, data, or a combination thereof, and wherein the DVC is configurable by radio resource control (RRC)-layer signaling.

17. The apparatus of claim 15, wherein, in determining whether to decode the first data using the first-capacity decoder or to decode the first data using the second-capacity decoder, the processor performs, for each time period of a plurality of consecutive time periods, operations comprising:

enabling the second-capacity decoder for a first duration; and

performing at least one of;

decoding the first data using the second-capacity decoder responsive to a determination that a size of the first data is greater than the first data size;

disabling the second-capacity decoder at an end of a second duration that follows the first duration responsive to a determination that a size of the first data is not greater than the first data size; and

continuing to use the second-capacity decoder to decode second data responsive to a determination during the second duration that a size of the second data is greater than the first data size.

18. The apparatus of claim 17, wherein, in determining whether to decode the first data using the first-capacity decoder or to decode the first data using the second-capacity decoder, the processor further performs operations comprising:

following the disabling of the second-capacity decoder at the end of the second duration, determining whether third data, destined for the UE and received by the UE after receiving the first data, has a size greater than the first data size; and

performing either of;

enabling the second-capacity decoder to decode the third data responsive to a determination that there is the third data destined for the UE with a size greater than the first data size;

or

decoding the third data using the first-capacity decoder responsive to a determination that the size of the third data is not greater than the first data size.

19. The apparatus of claim 15, whether the processor is further capable of performing either of:

enabling, by the processor, the first-capacity decoder to decode the first data responsive to a determination to decode the first data using the first-capacity decoder based on the data information indicating a size of the first data less than the first data size;

or

enabling the second-capacity decoder to decode the first data responsive to a determination to decode the first data using the second-capacity decoder based on the data information indicating a size of the first data greater than the first data size.

20. The apparatus of claim 15, wherein the processor is further capable of performing operations comprising:

receiving, via the modem, a dedicated virtual carrier (DVC) containing the first data destined for the UE; and

determining whether to decode the DVC using the first-capacity decoder or to enable the second-capacity decoder to decode the first data using the second-capacity decoder based on the data information or the control information.