Resource Scheduling Method and Device

• US 20140064206A1
• Filed: 03/22/2012
• Published: 03/06/2014
• Est. Priority Date: 03/25/2011
• Status: Active Grant

• Current Assignee: Nufront Mobile Communications Technology Company Limited
• Original Assignee: Feifei Wang
• Inventors: Bao, Dongshan, Wang, Jing, Liu, Shenfa, Zhou, Yubao, Yan, Zhigang, Lei, Jun, Pan, Lijun, Wang, Feifei, Zeng, Yongbo
• Granted Patent: US 9,351,315 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• 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 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

Provided are a resource scheduling method and device; the method comprises: scheduling resource according to the transmission demands; and configuring a frame structure with a non-fixed frame length matching the scheduled resource. The method according to the present invention prevents wastage of wireless resources caused by competition conflict or random back-off, and can better adapt to the demands of different kinds of data services with varied features in the future.

Claims

1. A resource scheduling method, characterized by comprising:

carrying out resource scheduling according to a transmission demand; and

configuring a frame structure which has an unfixed frame length and matches with scheduled resources.

2. The method of claim 1, wherein,

at least a preamble sequence and a system information channel are configured in the frame structure;

the preamble sequence is used to realize synchronization;

the system information channel is used to carry the information indicating the frame structure, when there is a demand on uplink transmission, uplink transmission resources are scheduled according to the demand on uplink transmission, to configure an uplink transmission channel in the frame structure, and when there is a demand on downlink transmission, downlink transmission resources are scheduled according to the demand on downlink transmission, to configure a downlink transmission channel in the frame structure.

4. The method of claim 2, wherein,

the demand on uplink transmission includes one or more of a demand on uplink service transmission, a demand on uplink signaling transmission and a demand on the feedback of the downlink service;

the uplink transmission channel configured according to the demand on uplink transmission includes one or more of an uplink service transmission channel, an uplink signaling channel and a downlink service feedback channel;

the demand on downlink transmission includes one or more of a demand on downlink service transmission, a demand on downlink signaling transmission and a demand on the feedback of the uplink service;

the downlink transmission channel configured according to the demand on downlink transmission includes one or more of a downlink service transmission channel, a downlink signaling channel and an uplink service feedback channel.

6. The method of claim 4, wherein,

when there is the demand on uplink transmission, the uplink sounding channel used by an STA to send an uplink sounding signal to a CAP is configured in the frame structure;

and

when scheduling the uplink transmission resources according to the demand on uplink transmission, the uplink sounding signal is measured on the uplink sounding channel, to calculate the uplink channel quality information CQI, and the uplink transmission resources are scheduled in combination with the measured uplink CQI;

or,

when there is the demand on uplink transmission, a downlink sounding channel and a CQI feedback channel are configured in the frame structure, where the downlink sounding channel is used by the CAP to send the downlink sounding signal to the STA, and the CQI feedback channel is used by the STA to feed back the downlink CQI measured according to the downlink sounding signal to the CAP; and

when scheduling the uplink transmission resources according to the demand on uplink transmission, the uplink CQI is determined according to the downlink CQI fed back by the STA based on the uplink and downlink reciprocity, and the uplink transmission resources are scheduled in combination with the uplink CQI;

or,

when there is the demand on uplink transmission, the uplink sounding channel used by the STA to send the uplink sounding signal to the CAP is configured in the frame structure; and

when scheduling the uplink transmission resources according to the demand on uplink transmission, the uplink sounding signal is measured on the uplink sounding channel to calculate the uplink CQI and the uplink channel status information CSI, and the uplink transmission resources are scheduled in combination with the measured uplink CQI and uplink CSI;

or

when there is the demand on uplink transmission, a downlink sounding channel, a CQI feedback channel and a CSI feedback channel are configured in the frame structure, where the downlink sounding channel is used by the CAP to send the downlink sounding signal to the STA, the CQI feedback channel is used by the STA to feed back the downlink CQI measured according to the downlink sounding signal to the CAP, and the CSI feedback channel is used by the STA to feed back the downlink CSI measured according to the downlink sounding signal to the CAP; and

when scheduling the uplink transmission resources according to the demand on uplink transmission, the uplink CQI is determined from the downlink CQI fed back by the STA and the uplink CSI is determined from the downlink CSI fed back by the STA based on the uplink and downlink reciprocity, and the uplink transmission resources are scheduled in combination with the uplink CQI and the uplink CSI;

or,

when there is the demand on uplink transmission, an uplink sounding channel, a downlink sounding channel and a CQI feedback channel are configured in the frame structure, where the uplink sounding channel is used by the STA to send the uplink sounding signal to the CAP, the downlink sounding channel is used by the CAP to send the downlink sounding signal to the STA, and the CQI feedback channel is used by the STA to feed back the downlink CQI measured according to the downlink sounding signal to the CAP; and

when scheduling the uplink transmission resources according to the demand on uplink transmission, the uplink sounding signal is measured on the uplink sounding channel to calculate the uplink channel quality information CQI, the uplink CQI is determined according to the downlink CQI fed back by the STA based on the uplink and downlink reciprocity, and the uplink transmission resources are scheduled in combination with the uplink CQI and the uplink CSI;

or,

when there is the demand on uplink transmission, an uplink sounding channel, a downlink sounding channel and a CSI feedback channel are configured in the frame structure, where the uplink sounding channel is used by the STA to send the uplink sounding signal to the CAP, the downlink sounding channel is used by the CAP to send the downlink sounding signal to the STA, and the CQI feedback channel is used by the STA to feed back the downlink CSI measured according to the downlink sounding signal to the CAP; and

when scheduling the uplink transmission resources according to the demand on uplink transmission, the uplink sounding signal is measured on the uplink sounding channel to calculate the uplink channel quality information CQI, the uplink CSI is determined according to the downlink CSI fed back by the STA based on the uplink and downlink reciprocity, and the up link transmission resources are scheduled in combination with the uplink CQI and the uplink CSI.

12. The method of claim 4, wherein,

when there is the demand on downlink transmission, the uplink sounding channel used by the STA to send the uplink sounding signal to the CAP is configured in the frame structure;

and

when scheduling the downlink transmission resources according to the demand on downlink transmission, the uplink sounding signal is measured on the uplink sounding channel to calculate the uplink CQI, the downlink CQI is determined based on the uplink and downlink reciprocity, and the downlink transmission resources are scheduled in combination with the measured downlink CQI;

or

when there is the demand on downlink transmission, the uplink sounding channel used by the STA to send the uplink sounding signal to the CAP is configured in the frame structure; and

when scheduling the downlink transmission resources according to the demand on downlink transmission, the uplink sounding signal is measured on the uplink sounding channel to calculate the uplink CQI and the unlink CSI, the downlink CQI and the downlink CSI are obtained based on the uplink and downlink reciprocity, and the downlink transmission resources are scheduled in combination with the downlink CQI and the downlink CSI;

or,

when there is the demand on downlink transmission, a downlink sounding channel and a CQI feedback channel are configured in the frame structure, where the downlink sounding channel is used by the CAP to send the downlink sounding signal to the STA, and the CQI feedback channel is used by the STA to feed back the downlink CQI measured according to the downlink sounding signal to the CAP; and

when scheduling the downlink transmission resources based on the downlink transmission, resources are scheduled according to the downlink CQI fed back by the STA;

or,

when there is the demand on downlink transmission, a downlink sounding channel, a CQI feedback channel and a CSI feedback channel are configured in the frame structure, wherein the downlink sounding channel is used by the STA to send the downlink sounding signal to the CAP, the CQI feedback channel is used by the STA to send the downlink CQI measured by the downlink sounding signal to the CAP, and the CSI feedback channel is used by the STA to feed back the downlink CSI measured by the downlink sounding signal to the CAP; and

when scheduling the downlink transmission resources according to the demand on downlink transmission, the downlink transmission resources are scheduled according to the downlink CQI and the downlink CSI fed back by the STA;

or,

when there is the demand on downlink transmission, an uplink sounding channel, a downlink sounding channel and a CQI feedback channel are configured in the frame structure, wherein the uplink sounding channel is used by the STA to send the uplink sounding signal to the CAP, the downlink sounding channel is used by the CAP to send the downlink sounding signal to the STA, and the CQI feedback channel is used by the STA to feed back the downlink CQI measured by the downlink sounding signal to the CAP; and

when scheduling the downlink transmission resources according to the demand on downlink transmission, the uplink sounding signal is measured on the uplink sounding channel to calculate the uplink CSI, the downlink CSI is determined based on the uplink and downlink reciprocity, and the downlink transmission resources are scheduled according to the downlink CSI and the downlink CQI fed back by the STA.

17. The method of claim 2, further comprising:

configuring the control channel in the frame structure, to indicate the assignment and scheduling of the transmission resources and the transmission format of the channel occupying the transmission resources.

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19. A resource scheduling device, characterized by comprising:

a scheduling module used to schedule resources according to a transmission demand; and

a configuration module used to configure a frame structure which has an unfixed frame length and matches with the scheduled resources.

20. The device of claim 19, wherein,

the configuration module configures at least a preamble sequence and a system information channel in the frame structure;

wherein, the preamble sequence is used to realize synchronization, and the system information channel is used to carry information indicating the frame structure;

the configuration module is used to schedule the uplink transmission resources according to a demand on uplink transmission, to configure an uplink transmission channel in the frame structure; and

further used to schedule the downlink transmission resources according to a demand on downlink transmission, and configures a downlink transmission channel in the frame structure.

22. The device of claim 20, wherein,

the demand on uplink transmission includes one or more of a demand on uplink service transmission, a demand on uplink signaling transmission and a demand on the feedback of the downlink service;

the uplink transmission channel configured by the configuration module includes one or more of an uplink service transmission channel, an uplink signaling channel and a downlink service feedback channel;

the demand on downlink transmission includes one or more of a demand on downlink service transmission, a demand on downlink signaling transmission and a demand on the feedback of the uplink service;

the downlink transmission channel configured by the configuration module includes one or more of a downlink service transmission channel, a downlink signaling channel and an uplink service feedback channel.

24. The device of claim 22, wherein,

the configuration module is adapted to, when there is the demand on uplink transmission, configure the uplink sounding channel in the frame structure, where the uplink sounding channel is used by the STA to send the uplink sounding signal to the CAP;

and

the scheduling module is used to, when scheduling the uplink transmission resources according to the demand on uplink transmission, measure the uplink sounding signal on the uplink sounding channel to calculate the uplink channel quality information CQI, and schedule the uplink transmission resources in combination with the measured uplink CQI;

or

the configuration module is adapted to, when there is the demand on uplink transmission, configure the downlink sounding channel and the CQI feedback channel in the frame structure, where the downlink sounding channel is used by the CAP to send the downlink sounding signal to the STA, and the CQI feedback channel is used by the STA to feed back the downlink CQI measured by the downlink sounding signal to the CAP; and

the scheduling module is adapted the uplink transmission resources according to the demand on uplink transmission, determine the uplink CQI according to the downlink CQI fed back by the STA based on the uplink and downlink reciprocity, and schedule the uplink transmission resources in combination with the uplink CQI;

or,

the configuration module is adapted to when there is the demand on uplink transmission, configure the uplink sounding channel which is used by the STA to send the uplink sounding signal to the CAP in the frame structure; and

the scheduling module is adapted to, when scheduling the uplink transmission resources according to the demand on uplink transmission, measure the uplink sounding signal on the uplink sounding channel to calculate the uplink CQI and uplink channel status information CSI, and schedule the uplink transmission resources in combination with the uplink CQI and the uplink CSI;

or,

the configuration module is adapted to when there is the demand on uplink transmission, configure a downlink sounding channel, a CQI feedback channel and a CSI feedback channel in the frame structure, where the downlink sounding channel is used by the CAP to send the downlink sounding signal to the STA, the CQI feedback channel is used by the STA to feed back the downlink CQI measured according to the downlink sounding signal to the CAP, and the CSI feedback channel is used by the STA to feed back the downlink CSI measured according to the downlink sounding signal to the CAP; and

the scheduling module is adapted to, when scheduling the uplink transmission resources according to the demand on uplink transmission, determine the uplink CQI according to the downlink CQI fed back by the STA based on the uplink and downlink reciprocity, determine the uplink CSI according to the downlink CSI fed back by the STA, and schedule the uplink transmission resources in combination with the uplink CQI and the uplink CSI;

or,

the configuration module is adapted to, when there is the demand on uplink transmission, configure an uplink sounding channel, a downlink sounding channel and a CQI feedback channel in the frame structure, wherein the uplink sounding channel is used by the STA to send the uplink sounding signal to the CAP, the downlink sounding channel is used by the CAP to send the downlink sounding signal to the STA, and the CQI feedback channel is used by the STA to feed back the downlink CQI measured by the downlink sounding signal to the CAP; and

the scheduling module is adapted to, when scheduling the uplink transmission resources according to the demand on uplink transmission, measure the uplink sounding signal according to the demand on uplink transmission to calculate the uplink channel quality information CSI, determine the uplink CQI according to the downlink CQI fed back by the STA based on the uplink and downlink reciprocity, and schedule the uplink transmission resources in combination with the uplink CQI and uplink CSI;

or,

the configuration module is adapted to, when there is the demand on uplink transmission, configure an uplink sounding channel, a downlink sounding channel and a CSI feedback channel in the frame structure, wherein the uplink sounding channel is used by the STA to send the uplink sounding signal to the CAP, the downlink sounding channel is used by the CAP to send the downlink sounding signal to the STA, and the CSI feedback channel is used by the STA to feed back the downlink CSI measured by the downlink sounding signal to the CAP; and

the scheduling module is adapted to, when scheduling the uplink transmission resources according to the demand on uplink transmission, measure the uplink sounding signal according to the demand on uplink transmission to calculate the uplink channel quality information CQI, determine the uplink CQI according to the downlink CQI fed back by the STA based on the uplink and downlink reciprocity, and schedule the uplink transmission resources in combination with the uplink CQI and the uplink CSI.

30. The device of claim 22, wherein,

the configuration module is adapted to, when there is the demand on downlink transmission, configure the uplink sounding channel in the frame structure, and the uplink sounding channel is used by the STA to send the uplink sounding signal to the CAP;

and

the scheduling module is adapted to, when scheduling the downlink transmission resources according to the demand on downlink transmission, measure the uplink sounding signal on the uplink sounding channel to calculate the uplink CQI, determine the downlink CQI based on the uplink and downlink reciprocity, and schedule the downlink transmission resources in combination with the downlink CQI;

or,

the configuration module is adapted to, when there is the demand on uplink transmission, configure the uplink sounding channel in the frame structure, wherein the uplink sounding channel is used by the STA to send the uplink sounding signal to the CAP; and

the scheduling module is adapted to, when scheduling the downlink transmission resources according to the demand on downlink transmission, measure the uplink sounding signal according to the demand on uplink transmission to calculate the uplink CQI and the uplink CSI, determine the downlink CQI and the downlink CSI based on the uplink and downlink reciprocity, and schedule the downlink transmission resources in combination with the downlink CQI and downlink CSI;

or,

the configuration module is adapted to, when there is the demand on downlink transmission, configure a downlink sounding channel and a CQI feedback channel in the frame structure, wherein the downlink sounding channel is used by the CAP to send the downlink sounding signal to the STA, and the CSI feedback channel is used by the STA to feed back the downlink CQI measured by the downlink sounding signal to the CAP; and

the scheduling module is adapted to, when scheduling the downlink transmission resources according to the demand on downlink transmission, schedule resources in combination with the downlink CQI fed back by the STA;

or,

the configuration module is adapted to, when there is the demand on downlink transmission, configure a downlink sounding channel, a CQI feedback channel and a CSI feedback channel in the frame structure, wherein the downlink sounding channel is used by the CAP to send the downlink sounding signal to the STA, the CQI feedback channel is used by the STA to feed back the downlink CQI measured according to the downlink sounding signal to the CAP, and the CSI feedback channel is used by the STA to feed back the downlink CSI measured according to the downlink sounding signal to the CAP; and

the scheduling module is adapted to, when scheduling the downlink transmission resources according to the demand on downlink transmission, schedule the downlink transmission resources in combination with the downlink CQI and the downlink CSI fed back by the STA;

or,

the configuration module is adapted to, when there is the demand on downlink transmission, configure an uplink sounding channel, a downlink sounding channel and a CQI feedback channel in the frame structure, wherein the uplink sounding channel is used by the STA to send the uplink sounding signal to the CAP, the downlink sounding channel is used by the CAP to send the downlink sounding signal to the STA, and the CQI feedback channel is used by the STA to feed back the downlink CQI measured by the downlink sounding signal to the CAP; and

the scheduling module is adapted to, when scheduling the downlink transmission resources according to the demand on downlink transmission, measure the uplink sounding signal on the uplink sounding channel to calculate the uplink CSI, determine the downlink CSI based on the uplink and downlink reciprocity, and schedule the downlink transmission resources according to the downlink CSI and the downlink CQI fed back by the STA.

35. The device of claim 20, wherein,

the configuration module is adapted to further configure an uplink scheduling request channel in the frame structure, wherein the uplink scheduling request channel is used by the STA to send the uplink scheduling request, to request for the transmission resources which are used to report to the CAP the demand on uplink transmission.

37. The device of claim 20, wherein,

the configuration module is adapted to configure a random access channel in the frame structure, and the random access channel is used by the STA to access and establish a relation with the CAP.

38. The device of claim 20, wherein,

the configuration module is further used to configure the control channel in the frame structure, to indicate assignment and scheduling of transmission resources and the transmission format of a channel occupying the transmission resources.

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41. A resource indication method, characterized by comprising:

generating a scheduling signaling which carries indication information that indicates resources for the signaling and/or feedback transmission in a user resource group, wherein the user resource group is used for user service data transmission; and

sending the scheduling signaling.

42. The method of claim 41, wherein,

the scheduling signaling further carries indication information that indicates a starting position and a length of the user resource group;

and/or, the scheduling signaling is used to indicate transmission in accordance with the preset signaling and/or feedback transmission format.

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51. A resource indication device, characterized by comprising:

generating a first scheduling signaling carrying information that indicates resources for signaling and/or feedback transmission; and

sending the first scheduling signaling.

52. The method of claim 51, wherein,

the information that indicates the resources for the signaling and/or feedback transmission includes a starting position and a length;

and/or,

the information that indicates the resources for the signaling and/or feedback transmission includes a format used to indicate a resource multiplexing manner; and

/or,

the information that indicates the signaling and/or feedback transmission includes the indication of a sub-channel or sub-carrier applicable to the first scheduling signaling in the spectrum aggregation mode.

56. The method of claim 51, further comprising:

generating a second scheduling signaling that carries information used for assigning resources for the signaling and/or feedback transmission, to indicate the resources for the signaling and/or feedback transmission assigned for each user; and

sending the second scheduling signaling.

57. The method of claim 56, wherein,

the information for assigning the resources for the signaling and/or feedback transmission includes one or more user identifiers STATIDs, as well as a starting position and a length of the corresponding STA in the resources for the signaling and/or feedback transmission.

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