WO2010102447A1

WO2010102447A1 - Method, device and system for releasing the resource

Info

Publication number: WO2010102447A1
Application number: PCT/CN2009/070731
Authority: WO
Inventors: 文雪
Original assignee: 华为终端有限公司
Priority date: 2009-03-11
Filing date: 2009-03-11
Publication date: 2010-09-16
Also published as: CN102084703A

Abstract

A method, device and system for releasing the resource are provided. A method for releasing the resource comprises: transmitting a downlink controlling signaling, the downlink controlling signaling being used for indicating the user equipment UE to release the uplink semi-persistent scheduling resource and the downlink semi-persistent scheduling resource. A method for releasing the resource comprises: receiving the downlink controlling signaling, the downlink controlling signaling being used for indicating the user equipment UE to release the uplink semi-persistent scheduling resource and the downlink semi-persistent scheduling resource; releasing the uplink SPS resource and the downlink SPS resource according to the downlink controlling signaling. By applying the above technical solutions, the network side device can realized the UE releasing the uplink and downlink SPS resource by one downlink controlling signaling to reduce the signaling overhead, thereby the technical problem in the prior art that the signaling overhead is biggish when the evolution base station realizes releasing the uplink SPS resource and the downlink SPS resource is solved, the efficiency of the system is enhanced.

Description

Resource release method, device and system

The present invention relates to the field of communications technologies, and in particular, to a method, device, and system for resource release.

Background technique

In the Long Term Evolution (LTE) system, physical layer resource scheduling methods include dynamic scheduling, persistent scheduling, and semi-persistent scheduling (SPS). The semi-persistent scheduling SPS means that the initial data transmission is continuous scheduling. If an error occurs in the initial transmission, a hybrid automatic repeat request (HQQ) retransmission is initiated, and the retransmission uses dynamic scheduling. After receiving the semi-persistent scheduling activated control signaling sent by the network side (such as the evolved base station eNB), the user equipment (UE) is determined by the time point of the control signaling and the control message indication, and the eNB is considered to be The corresponding resources for initial transmission are reserved on the specified time-frequency resources, and the UE may send data (uplink) or receive data (downlink) on the reserved resources.

In the process of implementing the present invention, the inventors have found that the prior art has at least the following problems: If the UE supports feedback acknowledgment of format 0, the evolved base station cannot send format 0 in the same Transmission Time Interval (TTI). Format 1 Α, so that the evolved base station must separately send the above two signalings at different times to implement the release of the uplink SPS resource and the downlink SPS resource, and the control signaling overhead is large.

Summary of the invention

The embodiments of the present invention provide a resource release method, device, and system, which solve the technical problem that the signaling overhead of the base station is large when implementing the release of the uplink SPS resource and the downlink SPS resource in the prior art.

The embodiment of the invention provides a resource release method, including:

Sending downlink control signaling, where the downlink control signaling is used to indicate that the user equipment UE releases the uplink semi-persistent scheduling resource and the downlink semi-persistent scheduling resource.

The embodiment of the invention further provides a resource release method, including:

Receiving downlink control signaling, where the downlink control signaling is used to indicate that the user equipment UE releases the uplink semi-persistent scheduling resource and the downlink semi-persistent scheduling resource; And releasing the uplink semi-persistent scheduling resource and the downlink semi-persistent scheduling resource according to the downlink control signaling.

The embodiment of the invention further provides a network side device, including:

The sending module is configured to send downlink control signaling, where the downlink control signaling is used to indicate that the user equipment UE releases the uplink semi-persistent scheduling resource and the downlink semi-persistent scheduling resource.

The embodiment of the invention further provides a communication system, including:

The network side device is configured to send downlink control signaling, where the downlink control signaling is used to indicate that the user equipment UE releases the uplink semi-persistent scheduling resource and the downlink semi-persistent scheduling resource;

And the user equipment is configured to receive the downlink control signaling, and release the uplink semi-persistent scheduling resource and the downlink semi-persistent scheduling resource according to the downlink control signaling.

In the embodiment of the present invention, the UE releases the uplink and downlink SPS resources by using one downlink control signaling, and reduces the signaling overhead, so as to solve the signaling overhead of the evolved base station in realizing the release of the uplink SPS resource and the downlink SPS resource in the prior art. Technical issues, improve system efficiency.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic diagram of a method according to Embodiment 1 of the present invention;

2 is a schematic diagram of a method according to Embodiment 3 of the present invention;

FIG. 3 is a schematic diagram of a system according to Embodiment 8 of the present invention.

detailed description

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of the present invention.

As shown in FIG. 1 , the first embodiment of the present invention provides a resource release method, including: sending downlink control signaling, where the downlink control signaling is used to indicate that the user equipment UE releases the uplink SPS resource and the downlink SPS resource. Optionally, the downlink control signaling in this embodiment may be format 0 or format 1A. Further, when the downlink control signaling is format 1 A, the modulation and coding scheme (MCS) in the format 1 A may be 11110 (or 11101); when the downlink control signaling is format 0, the The Modulation and Coding Scheme and Redundancy Version may be 11110 (or 11101) to instruct the UE to release the uplink SPS resource and the downlink SPS resource. With this embodiment, the network side device (such as an evolved base station) can instruct the UE to release the uplink SPS resource and the downlink SPS resource by using one control signaling, thereby reducing signaling overhead.

Further, when the downlink control signaling in the foregoing Embodiment 1 indicates that the UE releases the uplink SPS resource and the downlink SPS resource, the UE may feed back the received downlink control signaling. For example: Send feedback to confirm ACK, then, correspondingly, the network side device can receive the ACK. Specifically, it is assumed that the UE receives the downlink control signaling sent by the evolved base station to itself at the time of N, where N is an integer, and the FDD mode is taken as an example. At the time of N+4, the UE corresponds to the format 1 A. The above-mentioned feedback (such as ACK) is sent on the physical uplink control channel (PUCCH). The TDD mode is taken as an example. At the time of N+k, the UE sends the feedback (such as ACK) on the PUCCH corresponding to the format 1A. Where k is an integer, k can be determined according to the ratio of the uplink and downlink subframes of the TDD mode. Furthermore, the embodiment of the present invention enables the network side to know the release of the uplink SPS resource and the downlink SPS resource in time, avoiding resource waste or conflict, and is beneficial to improving resource utilization and system efficiency. It should be noted that the "time" in this embodiment is a time unit, for example, a TTI. Specifically, the time N indicates the Nth TTI, which is similar in the following embodiments, and will not be described again.

Further, in the TDD mode in the embodiment of the present invention, the value of k can be determined according to the following Table 1. For example, in the 0th uplink-downlink subframe ratio of the TDD mode, N=2, the UE feeds back the ACK at the time of N + 6 = 8. Similar to the following embodiments, and will not be described again.

Table 1: Up-down ratio of TDD mode

The resource release method provided in the foregoing first embodiment is described in detail in the second embodiment of the present invention. The downlink control signaling in the second embodiment of the present invention takes format 1A as an example.

Specifically, the MCS of the format 1A is set to 11110, to indicate that the uplink SPS resource and the downlink SPS resource are released, and the remaining fields of the format 1A may be set by using a method provided by the prior art without affecting the implementation of the embodiment, such as The bit field of the format 1 A is shown in Table 2 below. The HARQ process number is in the FDD mode. If the TDD mode is used, the HARQ process ID can be set to 0000.

Table 2: Partial Bit Field Settings for Format 1A

Further, if the MCS setting in Table 1 is not 11110, for example, 11111, the format 1A indicates that only the downlink SPS resources are released, instead of releasing the uplink SPS resources and the downlink SPS resources. In this embodiment, the network side device sends the format 1 A, and may further confirm that the UE correctly receives the format 1A by receiving the ACK fed back by the UE. Optionally, the network side device may reschedule the uplink SPS resource and/or the downlink SPS resource released by the UE.

In this embodiment, an indication of releasing the uplink and downlink SPS resources by the UE can be implemented by sending a downlink control signaling, which can reduce signaling overhead and improve system efficiency.

As shown in FIG. 2, the third embodiment of the present invention provides a resource release method, including: receiving downlink control signaling, where the downlink control signaling is used to indicate that the user equipment UE releases uplink SPS resources and downlink SPS resources; Signaling, releasing uplink SPS resources and downlink SPS resources. Optionally, the downlink control signaling may be format 1 A or format 0. Further, when the downlink control signaling is format 1A, the modulation and coding scheme MCS in the format 1A is 11110 (or 11101), or when the downlink control signaling is format 0, the modulation and coding scheme in the format 0 and The redundancy version is 11110 (or 11101) to instruct the UE to release the uplink SPS resource and the downlink SPS resource. Further, the UE may feed back the received downlink control signaling. For example, the UE receives the downlink control signaling at time N, where N is an integer, then: In the FDD mode, the UE may send a feedback acknowledgement ACK on the PUCCH at time N+4; taking the TDD mode as an example, Then, at the time of N+k, the UE sends the feedback (such as ACK) on the PUCCH corresponding to the format 1 A, where k is an integer, and k can determine the value according to the uplink and downlink subframe ratio of the TDD mode. With this embodiment, the user equipment can obtain the indication of the network side device through a control signal, thereby completing the release of the uplink and downlink SPS resources, which can reduce the signaling overhead and improve the system efficiency. Release method.

The downlink control signaling in the fourth embodiment of the present invention takes format 1 A as an example. Specifically, the UE receives the format 1A sent by the network side device in the second embodiment, and determines that the format 1A includes an indication for releasing the SPS resource, and the UE releases the SPS resource according to the MCS field in the format 1 A. For example, if the MCS is 11110, the UE releases the uplink and downlink SPS resources; optionally, the UE may send a feedback acknowledgement ACK, for example, sending an ACK after releasing the uplink and downlink SPS resources;

If the MCS is 11111, the UE releases the downlink SPS resource. Optionally, the UE may send a feedback acknowledgement ACK to the network side device. Of course, if the UE in this embodiment determines that the received format 1A does not include an indication that the network side device releases the SPS resource, the downlink control signaling may be discarded.

In this embodiment, the MCS is only used as an example. If the network side device in the second embodiment uses the MCS in the format 1A to be 11110 to instruct the UE to release the uplink SPS resource and the downlink SPS resource, the UE in this embodiment receives the The MCS of the format 1 A is 11110, and it can be determined that the network side device instructs it to release the uplink SPS resource and the downlink SPS resource.

In the foregoing embodiment, the UE releases the uplink and downlink SPS resources according to the received downlink control signaling, which can reduce signaling overhead and improve system efficiency.

The downlink control signaling in the fifth embodiment of the present invention takes format 0 as an example. Specifically, the UE receives the downlink control signaling format 0, where the format 0 setting includes the content shown in Table 3, the UE releases the uplink and downlink SPS resources; optionally, the UE may send the uplink and downlink SPS resources after sending Feedback confirmation ACK;

Table 3: Partial Bit Field Settings for Format 0

Further, if the MCS is 11111, the UE releases the uplink SPS resource according to the indication of the format0 without releasing the downlink SPS resource. Optionally, in the FDD mode, the UE correctly receives the control signaling for releasing the uplink SPS resource at the time N. After the format 0, the feedback acknowledgement ACK can be sent at the time of the N+4; of course, if the UE in this embodiment determines that the received format 0 does not include the indication that the network side device releases the SPS resource, the downlink control signal may be discarded. make.

In the above embodiment, the UE releases the uplink and downlink SPS resources according to the received one downlink control signaling, which can reduce signaling overhead and improve system efficiency. The sixth embodiment of the present invention provides a network side device, where the device includes: a sending module, configured to send downlink control signaling, where the downlink control signaling is used to indicate that the user equipment UE releases the uplink SPS resource and the downlink SPS resource.

Optionally, the foregoing downlink control signaling in this embodiment may be format 0 or format 1A. Further, the sending module is further configured to set the modulation and coding scheme MCS in the format 1A it sends to 11110 (or 11101), and/or the modulation and coding scheme and redundancy version in the format 0 to be sent. Is 11110 (or 11101).

Optionally, the device further includes: a receiving module, configured to receive, on the PUCCH, a feedback acknowledgement ACK sent by the UE. Further, it is assumed that the UE receives the downlink control signaling when the sending module sends the downlink control signaling, and the FDD mode is used as an example. The UE may send a feedback acknowledgement ACK on the PUCCH at time N+4. Correspondingly, the receiving module is specifically configured to receive a feedback acknowledgement ACK on the PUCCH at time N+4, where N is an integer.

The network side device provided in this embodiment can use a downlink control signaling to instruct the UE to release the uplink SPS resource and the downlink SPS resource, thereby reducing signaling overhead and improving system efficiency.

The seventh embodiment of the present invention provides a user equipment UE, where the apparatus includes: a module for receiving downlink control signaling, where the downlink control signaling is used to indicate that the user equipment UE releases the uplink SPS resource and the downlink SPS resource; A module for releasing uplink SPS resources and downlink SPS resources according to the downlink control signaling. In this embodiment, the UE releases the uplink SPS resource and the downlink SPS resource according to the received one downlink control signaling, which can reduce signaling overhead and improve system efficiency.

As shown in FIG. 3, Embodiment 8 of the present invention provides a communication system, including:

The network side device is configured to send downlink control signaling, where the downlink control signaling is used to indicate that the user equipment UE releases the uplink SPS resource and the downlink SPS resource;

And the user equipment is configured to receive the downlink control signaling, and release the uplink SPS resource and the downlink SPS resource according to the downlink control signaling.

Further, the downlink control signaling sent by the network side device may be format 0 or format 1A; optionally, the network side device may set the modulation and coding scheme MCS in the format 1A to be 11110 (or 11101), and / / Set the modulation and coding scheme and redundancy version in format 0 sent by it to 11110 (or 11101) to instruct the UE to release the uplink SPS resources and downlink SPS resources. Further, the user equipment may be further configured to send a feedback acknowledgement ACK on the PUCCH; the network side device may be further configured to receive the ACK on the PUCCH.

In the communication system provided in this embodiment, the network side device may send only one control signaling, and the user equipment may release the uplink SPS resource and the downlink SPS resource according to the indication of the downlink control signaling, thereby reducing signaling overhead and improving the system. effectiveness.

A person skilled in the art can understand that all or part of the steps of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium, the storage. Media, such as: ROM/RAM, disk, CD, etc.

The embodiments of the present invention have been described in detail above, and the present invention has been described with reference to the specific embodiments thereof. The description of the above embodiments is only for facilitating understanding of the system and method of the present invention. Meanwhile, for those skilled in the art, The present invention is not limited by the scope of the present invention.

Claims

Rights request

A resource release method, comprising:

2. The method according to claim 1, wherein the downlink control signaling is: format

0 or format 1A.

The method according to claim 1 or 2, wherein, when the downlink control signaling is used for the format 1A, the modulation and coding scheme in the downlink control signaling is 11110 or 11101; or,

When the downlink control signaling is format 0, the modulation and coding scheme and the redundancy version in the downlink control signaling are 11110 or 11101.

The method according to claim 1, wherein the transmitting the downlink control signaling is to send the downlink control signaling at the time N, and after the transmitting the downlink control signaling, the method further includes:

In the FDD mode, receiving a feedback acknowledgement ACK sent by the UE on the physical uplink control channel at time N+4; or

In the TDD mode, receiving a feedback acknowledgement ACK sent by the UE on the physical uplink control channel at time N+k;

Where N is an integer and k is an integer determined according to the ratio of uplink and downlink subframes in the TDD mode.

5. A resource release method, comprising:

Receiving downlink control signaling, where the downlink control signaling is used to indicate that the user equipment UE releases the uplink semi-persistent scheduling resource and the downlink semi-persistent scheduling resource;

And releasing the uplink semi-persistent scheduling resource and the downlink semi-persistent scheduling resource according to the downlink control signaling.

The method according to claim 5, wherein, according to the downlink control signaling, releasing the uplink semi-persistent scheduling resource and the downlink semi-persistent scheduling resource includes:

The downlink control command is format 1A, and when the modulation and coding scheme in the downlink control command is 11110 or 11101, the uplink semi-persistent scheduling resource and the downlink semi-persistent scheduling resource are released; or The downlink control signaling is format 0, and when the modulation and coding scheme and the redundancy version of the downlink control command are 11110 or 11101, the uplink semi-persistent scheduling resource and the downlink semi-persistent scheduling resource are released.

The method according to claim 5 or 6, wherein the receiving the downlink control signaling is to receive the downlink control signaling at the time N, and after the receiving the downlink control signaling, the method further includes:

In FDD mode, at N+4, a feedback acknowledgement ACK is sent on the physical uplink control channel; or,

In the TDD mode, at the time of N+k, a feedback acknowledgement ACK is sent on the physical uplink control channel; where N is an integer and k is an integer determined according to the uplink-downlink subframe ratio of the TDD mode.

8. A network side device, comprising:

9. Apparatus according to claim 8 wherein:

When the downlink control signaling is format 1A, the sending module is further configured to set the modulation and coding scheme MCS in the format 1A to 11110 or 11101; and/or,

When the downlink control signaling is format 0, the sending module is further configured to set the modulation and coding scheme and the redundancy version in the format 0 to 11110 or 11101.

The device according to claim 8 or 9, further comprising:

And a receiving module, configured to receive a feedback acknowledgement ACK sent by the UE on a physical uplink control channel.

A communication system, comprising:

12. The system of claim 11 wherein:

When the downlink control signaling is format 1A, the network side device is further configured to set the modulation and coding scheme MCS in the format 1A to 11110 or 11101; and/or,

When the downlink control signaling is format 0, the network side device is further configured to set the modulation and coding scheme and the redundancy version in the format 0 to 11110 or 11101.

The system according to claim 11 or 12, wherein the user equipment is further configured to send a feedback acknowledgement ACK on a physical uplink control channel; the network side device is further configured to use the physical uplink control channel. The ACK is received on.