LTE enhancements for small packet transmissions

• US 9,241,327 B2
• Filed: 06/21/2012
• Issued: 01/19/2016
• Est. Priority Date: 01/23/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Zhu, Yuan, Li, Qinghua, Qin, Yi, Fwu, Jong-Kae, Chen, Xiaogang
• Primary Examiner(s): Yao, Kwang B
• Assistant Examiner(s): NGO, NGUYEN HOANG
• Application Number:
  US13/529,895
• Publication Number:
  US 20130188566A1
• Time in Patent Office: 1,307 Days
• Field of Search: 370/229, 370/230, 370/235, 370/236, 370/251, 370/328, 370/329, 370/330, 370/436, 370/468, 370/474
• US Class Current: 1/1
• CPC Class Codes: H04J 11/00 Orthogonal multiplex systems, e.g. using WALSH codesH04J13/00 takes precedence
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04M 1/2535 adapted for voice communication over an Internet Protocol [IP] network Voice over Internet Protocol (VoIP) network equipment and services H04M7/006; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/54 based on quality criteria
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Disclosed in some examples is a method of wireless resource block assignment in a long term evolution wireless network including creating a downlink control information message for a user equipment, the downlink control information message comprising: a resource block assignment field which indicates up to N physical resource blocks scheduled to the user equipment by specifying an index into a plurality of all possible physical resource block allocations of between 1 and N resource blocks, wherein the resource block assignment field comprises at most a number of bits necessary to address all of the possible physical resource block allocations for assignments of 1 to N physical resource blocks, and wherein N is less than a total number of physical resource blocks; and sending the downlink control information over a physical downlink control channel using orthogonal frequency division multiplexing.

Claims

1. A method of wireless resource block assignment in a long term evolution wireless network comprising:

creating a downlink control information message for a user equipment, the downlink control information message comprising;

a resource block assignment field which indicates up to a maximum number of allocated physical resource blocks scheduled to the user equipment by specifying an index into a plurality of all possible physical resource block allocations of between 1 and the maximum number of allocated physical resource blocks, wherein the resource block assignment field comprises at most a number of bits necessary to address all of the possible physical resource block allocations for assignments of 1 to the maximum number of allocated physical resource blocks of physical resource block groups in a plurality of physical resource block groups, and wherein the maximum number of allocated physical resource blocks is an integer greater than 0 and less than a total number of physical resource blocks; and

sending the downlink control information over a physical downlink control channel using orthogonal frequency division multiplexing.

2. The method of claim 1, comprising sending a voice-over-internet-protocol packet to the user equipment on physical resource blocks allocated to the user equipment.

3. The method of claim 1, wherein the resource block assignment field specifies the up to the maximum number of allocated physical resource blocks allocated to the user equipment with reference to an address of the physical downlink control channel.

4. The method of claim 1, wherein the resource block assignment field specifies the up to the maximum number of allocated physical resource blocks allocated to the user equipment with reference to an address of an enhanced physical downlink control channel wherein the enhanced physical downlink control channel is sent from a first physical resource block in a common resource block group.

5. The method of claim 1, wherein the maximum number of allocated physical resource blocks is signaled as part of an RRC message sent to the user equipment.

6. The method of claim 1, wherein the downlink control information message does not contain information on one of:

scrambling identification, antenna ports, and number of layers.

7. The method of claim 1, wherein the downlink control information message does not contain information on one of:

modulation and coding scheme indication, a new data indication, and a redundancy version indication.

8. An eNodeB comprising:

a scheduler module configured to;

create a downlink control information message for a user equipment, the downlink control information message assigning to the user equipment up to a maximum number of scheduled physical resource blocks by specifying an index into a plurality of all possible physical resource block allocations of between 1 and the maximum number of the scheduled physical resource blocks, all allocated to the same resource block group, and wherein the maximum number of scheduled physical resource blocks is an integer greater than 0 and less than a total number of resource blocks, and wherein the index comprises at most a number of bits necessary to address the plurality of all possible physical resource block allocations of between 1and the maximum number of scheduled physical resource blocks of physical resource block groups in a plurality of physical resource block groups; and

a transceiver configured to send the scheduling message on the determined control channel element.

9. The eNodeB of claim 8, wherein a communication mode between the eNodeB and the user equipment is a transmission mode nine.

10. The eNodeB of claim 8, wherein the maximum number of scheduled physical resource blocks is determined based upon a minimum signal to interference and noise ratio which is necessary to decode a packet which is to be transmitted on the up to the maximum number of scheduled physical resource blocks.

11. The eNodeB of claim 8, wherein the scheduler is configured to schedule two non-consecutive physical resource blocks within the same resource block group.

12. The eNodeB of claim 8, wherein the downlink control information specifies the up to the maximum number of scheduled physical resource blocks allocated to the user equipment with reference to the address of a physical downlink control channel.

13. The eNodeB of claim 8, wherein the downlink control information specifies the up to the maximum number of scheduled physical resource blocks allocated to the user equipment with reference to the address of an enhanced Physical Downlink Control Channel.

14. A non-transitory machine readable medium that stores instructions which when performed by a machine, cause the machine to perform operations comprising:

creating a downlink control information message for a user equipment, the downlink control information message comprising;

a resource block assignment field which indicates up to a maximum number of allocated physical resource blocks scheduled to the user equipment by specifying an index into a plurality of all possible physical resource block allocations of between 1 and the maximum number of allocated physical resource blocks, wherein the resource block assignment field comprises at most a number of bits necessary to address all of the possible physical resource block allocations for assignments of 1 to the maximum number of allocated physical resource blocks of physical resource block groups in a plurality of physical resource block groups, and wherein the maximum number of allocated physical resource blocks is an integer greater than 0 and less than a total number of physical resource blocks; and

sending the downlink control information over a physical downlink control channel using orthogonal frequency division multiplexing.

15. The machine-readable medium of claim 14, wherein the instructions include instructions which when performed by the machine, cause the machine to perform operations comprising:

sending a voice-over-internet-protocol packet to the user equipment on physical resource blocks allocated to the user equipment.

16. The machine-readable medium of claim 14, wherein the resource block assignment field specifies the up to the maximum number of allocated physical resource blocks allocated to the user equipment with reference to an address of the physical downlink control channel.

17. The machine-readable medium of claim 14, the resource block assignment field specifies the up to the maximum number of allocated physical resource blocks allocated to the user equipment with reference to an address of an enhanced physical downlink control channel wherein the enhanced physical downlink control channel is sent from a first physical resource block in a common resource block group.

18. The machine-readable medium of claim 14, wherein the maximum number of allocated physical resource blocks is signaled as part of an RRC message sent to the user equipment.

19. The machine-readable medium of claim 14, wherein the downlink control information message does not contain information on one of:

scrambling identification, antenna ports, and number of layers.

20. The machine-readable medium of claim 14, wherein the downlink control information message does not contain information on one of:

modulation and coding scheme indication, a new data indication, and a redundancy version indication.