Method and system for data transmission

• US 20180213572A1
• Filed: 03/21/2016
• Published: 07/26/2018
• Est. Priority Date: 07/27/2015
• Status: Abandoned Application

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Zhang, Fang, Dai, Qian
• Application Number:
  US15/744,271
• Publication Number:
  US 20180213572A1
• Time in Patent Office: Days
• CPC Class Codes: H04B 1/7105 Joint detection techniques, e.g. linear detectors
• CPC Class Codes: H04J 13/18 Allocation of orthogonal codes
• CPC Class Codes: H04J 2013/165 Joint allocation of code together with frequency or time
• CPC Class Codes: H04L 1/00 Arrangements for detecting or preventing errors in the information received correcting synchronisation H04L7/00
• CPC Class Codes: H04L 1/1893 Physical mapping arrangements physical resource mapping in general H04L5/00
• CPC Class Codes: H04L 5/0016 Time-frequency-code
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0082 at predetermined intervals
• CPC Class Codes: H04L 5/0092 Indication of how the channel is divided
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 72/1268 of uplink data flows
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/0841 with collision treatment

Abstract

A method and system for data transmission are disclosed, the method comprising: the network side transmits pre-scheduling authorization information and conflict resolution information to user equipment; and the network side receives data transmitted by the user equipment on the resource indicated by the pre-scheduling authorization information on the basis of the codebook configuration information carried in the conflict resolution information.

Claims

1. A data transmission method, comprising:

sending, by a network side, Pre-Scheduling Grant Information (Info) and Collision Resolution (CR) Info to User Equipment (UE); and

receiving, by the network side, data sent by the UE on a resource indicated by the Pre-Scheduling Grant Info according to codebook configuration Info contained in the CR Info.

2. The method according to claim 1, wherein the codebook configuration Info comprises:

Codebook Group Info and Info about a Codebook Index in Group, and a codebook is a spread spectrum codebook with an orthogonal or quasi-orthogonal property.

3. The method according to claim 1, further comprising:

before sending, by the network side, the Pre-Scheduling Grant Info and the CR Info to the UE, configuring, by the network side, the CR Info for the UE.

4. The method according to claim 3, wherein continuing, by the network side, the CR Info for the UE comprises:

configuring, by the network side, the Codebook Group Info and the Info about the Codebook Index in Group for each piece of UE;

or,

configuring, by the network side, the Codebook Group Info for each piece of UE.

5. The method according to claim 1, further comprising:

updating or reconfiguring, by the network side, the Pre-Scheduling Grant Info and CR Info sent to the UE periodically or under triggering of a triggering event.

6. The method according to claim 1, wherein the network side sends the Pre-Scheduling Grant Info and the CR Info to the UE in any one or more of the following manners:

the network side sends the Pre-Scheduling Grant Info and the CR Info to the UE through one or more pieces of control signaling on a Physical Downlink Control Channel (PDCCH), and indicates the Pre-Scheduling Grant Info and the CR Info through one or more pieces of identification Info;

the network side sends the Pre-Scheduling Grant info and the CR info to the UE through a Physical Downlink Shared Channel (PDSCH), sends signaling containing downlink grant Info through the PDCCH, and indicates the downlink grant info to be downlink grant Info for a Media Access Control (MAC) Control Element (CE) that contains the CR Info;

or

the network side sends the Pre-Scheduling Grant Info and the CR Info to the UE through Radio Resource Control (RRC) Connection Reconfiguration signaling.

7. The method according to claim 1, after receiving, by the network side, the data sent by the UE on the resource indicated by the Pre-Scheduling Grant Info according to the codebook configuration Info contained in the CR Info, the method further comprising at least one of the following steps:

when the network side successfully decodes the data sent by the UE, sending, by the network side, an Acknowledgement (ACK) response message to the UE;

or,

when the network side fails to decode the data sent by the UE and the network side does not successfully detect a CR UE Identifier (ID) sent by the UE, not sending, by the network side, a response message to the UE;

or,

when the network side fails to decode the data sent by the UE and the network side successfully detects the CR UE ID sent by the UE, sending, by the network side, a Negative Acknowledgement (NACK) response message to the UE, and sending, to the UE, Uplink (UL) SG Info for data retransmission.

8. The method according to claim 7, when the network side sends the ACK response message to the UE, the method further comprising:

if the network side judges that there is still data required to be transmitted in a Buffer of the UE, sending, by the network side to the UE, UL Scheduling Grant (SG) Info for new data transmission.

9. A data transmission method, comprising:

receiving, by User Equipment (UE), Pre-Scheduling Grant Information (Info) and Collision Resolution (CR) Info sent by a network side; and

sending, by the UE, data to the network side on a resource indicated by the Pre-Scheduling Grant Info according to codebook configuration Info contained in the CR Info.

10. The method according to claim 9, wherein the codebook configuration info comprises:

Codebook Group Info and Info about a Codebook Index in Group, and a codebook is a spread spectrum codebook with an orthogonal or quasi-orthogonal property.

11. The method according to claim 9, wherein sending, by the UE, the data to the network side on the resource indicated by the Pre-Scheduling Grant Info according to the codebook configuration Info contained in the CR Info comprises:

acquiring or selecting, by the UE, a spread spectrum codebook according to the codebook configuration Info contained in the CR Info, and after extending original data by using the spread spectrum codebook, sending Uplink (UL) data on the resource indicated by the Pre-Scheduling Grant Info, and sending or carrying a CR UE Identifier (ID) and/or Buffer Status Report (BSR) Info.

12. The method according to claim 11, wherein acquiring or selecting, by the UE, the spread spectrum codebook according to the codebook configuration Info contained in the CR Info, and after extending the original data by using the spread spectrum codebook, sending the UL data on the resource indicated by the Pre-Scheduling Grant Info and sending or carrying the CR UE ID comprises:

sending, by the UE, UE dedicated Scheduling Grant (SG) signaling by virtue of a Physical Uplink Control Channel (PUCCH), a time-frequency resource location of the SR signaling being in one-to-one correspondence with the UE ID;

or,

carrying, by the UE, a mask uniquely corresponding to the UE ID in the PUCCH or a Physical Uplink Shared Channel (PUSCH).

13. The method according to claim 9, further comprising:

after sending, by the UE, the data to the network side on the resource indicated by the Pre-Scheduling Grant Info according to the codebook configuration Info contained in the CR Info, receiving, by the UE, a response feedback message sent by the network side, and acknowledging a data transmission success or failure according to the response feedback message.

14. The method according to claim 9, further comprising:

after sending, by the UE, the data to the network side on the resource indicated by the Pre-Scheduling Grant Info according to the codebook configuration info contained in the CR Info, when there is still data required to be transmitted in a Buffer of the UE and the UE receives UL grant Info sent by the network side, transmitting new data or retransmitting the data on a UL grant resource indicated by the UL grant Info.

15-16. -16. (canceled)

17. A non-transitory computer-readable storage medium having stored thereon a computer-executable instruction arranged to execute a data transmission method, the method comprising:

sending, by a network side, Pre-Scheduling Grant Information (Info) and Collision Resolution (CR) Info to User Equipment (UE); and

receiving, by the network side data sent by the UE on a resource indicated by the Pre-Scheduling Grant Info according to codebook configuration Info contained in the CR Info.

18. The non-transitory computer-readable storage median according to claim 17, wherein the codebook configuration Info comprises:

Codebook Group Info and Info about a Codebook Index in Group, and a codebook is a spread spectrum codebook with an orthogonal or quasi-orthogonal property.

19. The non-transitory computer-readable storage medium according to claim 17, wherein the method further comprises:

before sending, by the network side, the Pre-Scheduling Grant info and the CR Info to the UE,

configuring, by the network side, the CR Info for the UE.

20. The non-transitory computer-readable storage medium according to claim 19, wherein configuring, by the network side, the CR Info for the UE comprises:

configuring, by the network side, the Codebook Group Info and the Info about the Codebook Index in Group for each piece of UE;

or,

configuring, by the network side, the Codebook Group Info for each piece of UE.

21. The non-transitory computer-readable storage medium according to claim 17, wherein the method further comprises:

updating or reconfiguring, by the network side, the Pre-Scheduling Grant Info and CR Info sent to the UE periodically or under triggering of a triggering event.

22. The non-transitory computer-readable storage medium according to claim 17, wherein the network side sends the Pre-Scheduling Grant info and the CR Info to the UE in any one or more of the following manners:

the network side sends the Pre-Scheduling Grant Info and the CR Info to the UE through one or more pieces of control signaling on a Physical Downlink Control Channel (PDCCH), and indicates the Pre-Scheduling Grant Info and the CR Info through one or more pieces of identification Info;

the network side sends the Pre-Scheduling Grant Info and the CR Info to the UE through a Physical Downlink Shared Channel (PDCCH), sends signaling containing downlink grant Info through the PDCCH, and indicates the downlink grant Info to be downlink grant Info for a Media Access Control (MAC) Control Element (CE) that contains the CR Info;

or

the network side sends the Pre-Scheduling Grant info and the CR Info to the UE through Radio Resource Control (RRC) Connection Reconfiguration signaling.