WO2016070703A1

WO2016070703A1 - Uplink scheduling method, device and system

Info

Publication number: WO2016070703A1
Application number: PCT/CN2015/091947
Authority: WO
Inventors: 徐伟杰; 潘学明
Original assignee: 电信科学技术研究院
Priority date: 2014-11-06
Filing date: 2015-10-14
Publication date: 2016-05-12
Also published as: CN105636223A; CN105636223B

Abstract

Disclosed are an uplink scheduling method, device and system. The method comprises: a base station groups to-be-scheduled UEs; the base station allocates and sends group identification information to each UE group; the base station sends, to each UE in the corresponding UE group, a PDCCH scrambled by using the group identification information of the UE group that the UE is in, the PDCCH carrying scheduling information; the UE receives the group identification information allocated by the base station; the UE receives the PDCCH scrambled by using the group identification information and sent by the base station; and after acquiring the resource through competition, the UE sends a PUSCH according to the indication of the scheduling information, and sends the information identifying the UE. The technical solution provided by embodiments of the present application improves the uplink scheduling efficiency and the uplink resource utilization rate.

Description

Uplink scheduling method, device and system

This application claims priority to Chinese Patent Application No. 201410638532.8, entitled "An Uplink Scheduling Method, Apparatus and System", filed on November 06, 2014, the entire contents of which is incorporated herein by reference. In the application.

Technical field

The present invention relates to the field of wireless communications technologies, and in particular, to an uplink scheduling method, apparatus, and system.

Background technique

As the volume of mobile data continues to grow, spectrum resources become more and more tense. Only the use of licensed spectrum resources for network deployment and service transmission may not meet the traffic demand. Therefore, the Long Term Evolution (LTE) system can be considered. Unlicensed LTE (U-LTE or LTE-U) is deployed on unlicensed spectrum resources to improve user experience and extend coverage.

The unlicensed spectrum does not have a specific application system, and can be shared by various wireless communication systems such as Bluetooth, WiFi, etc., and the shared unlicensed spectrum resources are used by multiple systems by preempting resources. The 3rd Generation Partnership Project (3GPP) requires the fair coexistence of LTE-U and wireless communication systems such as WiFi. The carrier of the unlicensed band (hereinafter referred to as the unlicensed carrier) is used as the secondary carrier to be assisted by the primary carrier of the licensed band. Listening to Talk (LBT) as the basic means of LTE-U competition access, has been approved by almost all companies. The WiFi system uses the LBT technology to preempt the resources on the unlicensed spectrum as follows: First, the channel is monitored. When the channel idle time reaches the distributed inter-frame space (DIFS), the current channel is determined to be an idle channel. Then each station waiting to access the current channel enters a random backoff phase to prevent multiple sites from colliding on the same resources. In addition, in order to ensure fairness, it is also stipulated that each site cannot occupy spectrum resources for a long time. When a certain time or data transmission limit is reached, resources need to be released for other devices/systems to seize resources.

When the LTE system works on the unlicensed carrier, the base station and the user equipment (User Equipment, UE) of the LTE system also need to use the LBT mechanism to compete for resources in order to ensure that the spectrum resources are shared with other devices or systems.

If the LTE uplink scheduling is performed according to the transmission requirement on the unlicensed carrier, the UE may perform the uplink data transmission after the uplink scheduling authorization is performed, and the uplink data transmission may be performed after the contending of the unlicensed carrier. Therefore, the following problems may occur:

According to the existing LTE mechanism, the physical downlink control channel (PDCCH) of the uplink grant grant (UL grant; UL, Uplink) has a certain timing relationship with the physical uplink data channel (PUSCH), UL. The PDCCH scheduling the grant is transmitted before the PUSCH k (k>=4) subframes. This means that the base station must first transmit the PDCCH of the UL scheduling grant, but at this time, the base station is uncertain whether the UE can compete for the uplink channel before transmitting the PUSCH after the k subframes. Because the uplink subframe after k subframes In the above, the UE may face competition from other uplink users of the same/neighboring LTE cell and other non-authorized systems (such as WIFI) devices. Therefore, the uplink subframes of the uplink users scheduled by the base station may not be able to compete for resources in the uplink subframes, but may not be able to transmit data in the uplink subframes. On the other hand, other UEs that are not scheduled by the local cell may compete for resources. (For example, there are no other UEs or other unauthorized devices competing for resources around it), but the uplink scheduling has not been obtained before, resulting in waste of this uplink subframe.

The above problems lead to inefficient uplink scheduling.

Summary of the invention

An object of the present invention is to provide an uplink scheduling method, apparatus, and system, which solve the problem of inefficient uplink scheduling in an unlicensed frequency band under the existing LTE mechanism.

The object of the invention is achieved by the following technical solutions:

An uplink scheduling method includes:

Grouping UEs to be scheduled;

Allocating group identification information to each UE group, and sending group identification information allocated to the user equipment group of each user equipment group to the user equipment group;

The PDCCHs scrambled by the group identity information of the UE group in which the UE is located are respectively sent to the UEs in the UE groups, and the PDCCH carries the scheduling information.

Preferably, the group identification information is a Cell-Radio Network Tempory Identity (C-RNTI).

Preferably, after the PDCCH that is scrambled by the group identity information of the UE group in which the UE is located is sent to the UE in each UE group, the method further includes:

According to the timing relationship, the PUSCH is received on the subframe corresponding to the PDCCH that is scrambled by the group identification information, and the UE that transmits the PUSCH is determined.

Preferably, receiving the PUSCH on the subframe corresponding to the PDCCH that is scrambled by the group identification information includes:

The scrambling code initialized with the group identification information descrambles the PUSCH on the subframe corresponding to the PDCCH scrambled by the group identification information.

Based on the foregoing any of the foregoing method embodiments, the method further includes: after the UE to be scheduled is grouped, before the UE sends the PUSCH in the subframe corresponding to the PDCCH that is scrambled by the group identifier information of the UE group in which the UE is located, the method further includes:

The UEs in the respective UE groups are respectively allocated parameters for identifying the UEs in the UE group, and the UEs in the respective UE groups are sent parameters for identifying the UEs in the UE group.

Preferably, the parameter for identifying the UE in the UE group includes: a parameter for determining a cyclic offset of the uplink demodulation pilot; or the parameter for identifying the UE in the UE group includes: The value of the UE is identified within the UE group.

And determining, according to any foregoing method for receiving the PUSCH, the UE that sends the PUSCH, including:

Receiving the information of the identified UE sent by the UE, and determining the sender UE of the received PUSCH according to the information identifying the UE.

Specifically, the uplink demodulation pilot can be received and blindly detected, and the UE that sends the PUSCH is determined according to the blind detection result, where the information identifying the UE can be obtained from the uplink demodulation pilot. For example, after the uplink demodulation pilot is blindly detected, the cyclic offset of the uplink demodulation pilot can be obtained, and then the parameter for determining the cyclic offset of the uplink demodulation pilot is obtained according to the cyclic offset, and the search is performed. The UE corresponding to the parameter is the UE that sends the PUSCH.

The uplink channel carrying the value for identifying the UE in the UE group may also be received, and the sender UE of the received PUSCH is determined according to the value used to identify the UE in the UE group, where the uplink channel is the identifier of the UE. information. For example, after receiving the uplink channel, the UE may be used to obtain a value for identifying the UE in the UE group, and the UE corresponding to the value may be searched for, that is, the UE that sends the PUSCH.

Preferably, the uplink channel carrying the value for identifying the UE within the UE group may be a Physical Uplink Control Channel (PUCCH).

Based on any of the foregoing method embodiments, preferably, the UEs to be scheduled are grouped, including:

Allocating UEs to be scheduled according to a Channel Quality Indicator (CQI) fed back by the UE to be scheduled; or

The user equipment to be scheduled is grouped according to the reference signal received by the reference signal received by the UE to be scheduled (Reference Signal Received Power, RSRP).

Based on any of the foregoing method embodiments, before the UE to be scheduled is grouped, the method further includes:

Determining whether to perform group scheduling according to the obtained auxiliary information and/or statistical information;

Grouping UEs to be scheduled, including:

When it is determined to perform group scheduling, the UEs to be scheduled are grouped.

Based on any of the foregoing method embodiments, the PDCCH that is scrambled by using the group identity information of the UE group in which the UE is located is sent to the UE in each UE group, including:

The PDCCH that is scrambled by using the group identification information of the UE group in which the UE is located is sent to the UE in each UE group by using the cross-carrier scheduling mode; or

The PDCCH that is scrambled using the group identification information of the UE group in which the UE is located is sent to the UE in each UE group by using the carrier scheduling mode.

The PDCCH that is scrambled by using the group identification information of the user equipment group in the UE group is used in the cross-carrier scheduling mode. The preferred implementation manner is as follows: on the carrier on the licensed frequency band, to each UE group. The UE in the UE transmits a PDCCH scrambled using the group identification information of the UE group in which the UE is located, and the scheduling information carried in the PDCCH is used to schedule the PUSCH on the carrier of the unlicensed band.

An uplink scheduling method includes:

Receiving group identification information sent by the base station;

Receiving, by the base station, a PDCCH scrambled by using the group identifier information, where the PDCCH carries scheduling information;

After competing for the resource, the PUSCH is sent according to the indication of the scheduling information, and information identifying the UE is sent.

Preferably, the PUSCH is sent according to the indication of the foregoing scheduling information, including:

The PUSCH scrambled by the scrambling code initialized by the group identification information is transmitted according to the instruction of the scheduling information.

The method further includes: receiving, by the base station, the UE for identifying the UE in the UE group, before sending the PUSCH according to the indication of the foregoing scheduling information, and transmitting the information identifying the UE. parameter;

Sending information identifying the UE includes: generating and transmitting information identifying the UE according to the foregoing parameter for identifying the UE in the UE group.

Preferably, the foregoing parameter for identifying the UE in the UE group may include: a parameter used to determine a cyclic offset of the uplink demodulation pilot. Correspondingly, generating, according to the parameter for identifying the UE in the UE group, generating and transmitting the information identifying the UE, includes: generating an uplink demodulation pilot according to a parameter used to determine a cyclic offset of the uplink demodulation pilot And send.

Preferably, the foregoing parameter for identifying the UE in the UE group may also include: a value for identifying the UE in the UE group. Correspondingly, according to the parameter for identifying the UE in the UE group, generating and transmitting the information identifying the UE, including: sending an uplink channel (PUCCH), where the uplink channel carries a value for identifying the UE in the UE group .

Preferably, the uplink channel is a PUCCH.

An uplink scheduling method includes:

The base station groups the UEs to be scheduled;

The base station allocates group identification information for each UE group, and sends the group identification information allocated to the UE group in each UE group to the UE group.

The UE to be scheduled receives the group identification information allocated by the base station;

The eNB transmits a PDCCH that is scrambled by the group identity information of the UE group in which the UE is located, and the PDCCH carries the scheduling information.

The UE to be scheduled receives a PDCCH sent by the base station and scrambled by using the group identification information;

After competing for the resource, the UE to be scheduled sends a PUSCH according to the indication of the scheduling information, and sends information identifying the UE.

Preferably, after the base station groups the user equipments to be scheduled, before the user equipment sends the physical uplink shared channel on the subframe corresponding to the physical downlink control channel that is scrambled by the group identifier information of the user equipment group, The method further includes: the base station separately assigning, to the user equipment in each user equipment group, a parameter for identifying the user equipment in the user equipment group, and transmitting, to the user equipment in each user equipment group, the user equipment for the user equipment group Device group ID User equipment parameters;

Before the user equipment to be scheduled sends the physical uplink shared channel according to the indication of the scheduling information, and sends the information identifying the user equipment, the method further includes: the user equipment to be scheduled receives the information sent by the base station The information of the user equipment is identified in the user equipment group. The information about the user equipment is sent, and the information for identifying the user equipment is generated and sent according to the parameter used to identify the user equipment in the user equipment group.

Based on the same inventive concept as the method, the embodiment of the present invention further provides an uplink scheduling apparatus, including:

a user equipment grouping module, configured to group user equipments to be scheduled;

The group identification information configuration module is configured to respectively allocate group identification information for each user equipment group, and send group identification information allocated to the user equipment group of each user equipment group to the user equipment group;

The uplink scheduling module is configured to send, to the user equipment in each user equipment group, a physical downlink control channel that is scrambled by using the group identity information of the user equipment group in which the user equipment group is located, where the physical downlink control channel carries scheduling information.

Preferably, the method further includes an uplink data receiving module, configured to:

And receiving, according to the timing relationship, a physical uplink shared channel on a subframe corresponding to the physical downlink control channel that is scrambled by the group identifier information, and determining a user equipment that sends the physical uplink shared channel.

Preferably, when receiving the physical uplink shared channel in the subframe corresponding to the physical downlink control channel that is scrambled by the group identification information, the uplink data receiving module is configured to:

On the subframe corresponding to the physical downlink control channel scrambled by the group identification information, the scrambling code initialized by the group identification information is used to descramble the physical downlink shared channel.

Based on any of the foregoing apparatus embodiments, the user equipment identification parameter configuration module is further configured to: after the user equipment grouping module groups the user equipment to be scheduled, the group identification information of the user equipment group in the user equipment group Before the physical uplink shared channel is transmitted on the subframe corresponding to the physical downlink control channel that is scrambled, the user equipment in each user equipment group is allocated a parameter for identifying the user equipment in the user equipment group and is directed to each user equipment group. The user equipment in the middle transmits a parameter assigned thereto for identifying the user equipment within the user equipment group.

Preferably, the parameters for identifying the user equipment in the user equipment group include:

A parameter used to determine the cyclic offset of the uplink demodulation pilot.

A value used to identify a user device within a group of user devices.

The uplink data receiving module is configured to: when determining the user equipment that sends the physical uplink shared channel, based on the foregoing, where the user equipment is configured to:

And receiving, by the user equipment, the information that identifies the user equipment, and determining, according to the information that identifies the user equipment, the user equipment that sends the physical uplink shared channel.

Preferably, when determining the user equipment that sends the physical uplink shared channel, the uplink data receiving module is configured to: receive and blindly detect an uplink demodulation pilot, and determine, according to a blind detection result, a user that sends the physical uplink shared channel. device.

Preferably, when determining the user equipment that sends the physical uplink shared channel, the uplink data receiving module is configured to: receive an uplink channel carrying a value for identifying the user equipment in the user equipment group, according to the The value of the user equipment identified in the user equipment group determines the user equipment that transmits the physical uplink shared channel.

Preferably, the uplink channel carrying a value for identifying the user equipment in the user equipment group is a physical uplink control channel.

Based on any of the foregoing device embodiments, preferably, the user equipment grouping module is configured to:

The user equipments to be scheduled are grouped according to the CQI fed back by the user equipment to be scheduled; or

The user equipments to be scheduled are grouped according to the RSRP measurement report result of the user equipment to be scheduled.

Based on any of the foregoing device embodiments, the method further includes a scheduling mode determining module, configured to: determine whether to perform group scheduling according to the obtained auxiliary information and/or statistical information;

The user equipment grouping module is configured to group the user equipments to be scheduled when the scheduling mode decision module determines to perform group scheduling.

Based on any of the foregoing device embodiments, preferably, the uplink scheduling module is configured to:

The cross-carrier scheduling mode is used to separately send the physical downlink control channel that is scrambled by the group identifier information of the user equipment group in the user equipment group; or

The carrier downlink scheduling mode is used to send the physical downlink control channel scrambled by the group identity information of the user equipment group in the user equipment group.

Preferably, when the physical downlink control channel that is scrambled by the group identity information of the user equipment group in which the user equipment group is located is sent to the user equipment in each user equipment group, the uplink scheduling module is used to:

And transmitting, by the user equipment in each user equipment group, a physical downlink control channel that is scrambled by the group identity information of the user equipment group in the user equipment group, where the scheduling information carried in the physical downlink control channel is used for scheduling The physical uplink shared channel on the carrier of the licensed band.

Based on the same inventive concept as the method, the embodiment of the present invention further provides a base station, including:

A processor for reading a program in the memory, performing the following process:

Grouping UEs to be scheduled;

Allocating group identification information to each UE group, and transmitting group identification information allocated to the UE group in each UE group to the UE group in each UE group;

Transmitting, by the transceiver, the PDCCHs that are scrambled by the group identity information of the UE group in which the UE is located, and the PDCCH carries the scheduling information;

a transceiver for receiving and transmitting data under the control of a processor;

A memory that holds the data used by the processor to perform operations.

Preferably, the processor is further configured to read a program in the memory and perform the following process:

Receiving, by the timing relationship, the PUSCH on the subframe corresponding to the PDCCH that is scrambled by the group identification information, and determining The UE that transmits the PUSCH.

Preferably, when the PUSCH is received on the subframe corresponding to the PDCCH that is scrambled by the group identification information, the processor is configured to read the program in the memory, and perform the following process:

Based on any of the foregoing base station embodiments, preferably, the processor is further configured to read a program in the memory, and perform the following process: after the UE to be scheduled is grouped, the UE scrambles the group identification information of the UE group in which the UE is located Before the PUSCH is transmitted in the subframe corresponding to the PDCCH, the UEs in the UE groups are respectively allocated parameters for identifying the UE in the UE group, and the UEs in the UE groups are allocated for the UEs to be identified in the UE group. The parameters of the UE.

Preferably, the parameter for identifying the UE in the UE group includes: a parameter used to determine a cyclic offset of the uplink demodulation pilot; or the parameter used to identify the UE in the UE group includes: used in the UE The value of the UE is identified.

Based on the foregoing any embodiment of the base station that receives the uplink data, preferably, when determining the UE that sends the PUSCH, the processor is configured to read the program in the memory, and perform the following process: receiving information that identifies the user equipment sent by the user equipment, according to the identifier. The information of the user equipment determines the user equipment that sends the physical uplink shared channel.

Preferably, when determining the user equipment that sends the physical uplink shared channel, the processor is configured to read the program in the memory, and perform the following process: receiving and blindly detecting the uplink demodulation pilot, and determining to send the PUSCH according to the blind detection result. UE.

Preferably, when determining the user equipment that sends the physical uplink shared channel, the processor is configured to read a program in the memory, and perform the following process: receiving an uplink channel carrying a value for identifying the user equipment in the user equipment group, according to The value for identifying the user equipment in the user equipment group determines the user equipment that sends the physical uplink shared channel.

Based on any of the foregoing base station embodiments, preferably, when the user equipments to be scheduled are grouped, the processor is configured to read a program in the memory, and perform the following process:

The UEs to be scheduled are grouped according to the CQI fed back by the UE to be scheduled; or

The UEs to be scheduled are grouped according to the RSRP measurement report result of the UE to be scheduled.

Based on any of the foregoing base station embodiments, preferably, the processor is further configured to read a program in the memory, and perform the following process: determining whether to perform group scheduling according to the acquired auxiliary information and/or statistical information; and determining to perform group scheduling, The UEs to be scheduled are grouped.

Preferably, the PDCCH that is scrambled by using the group identity information of the UE group in which the UE is located is sent to the UEs in each UE group by using the cross-carrier scheduling mode; or, by using the carrier scheduling mode, respectively The UE in each UE group transmits a PDCCH scrambled using the group identification information of the UE group in which it is located.

When the physical downlink control channel scrambled by the group identification information of the user equipment group in which the user equipment group is located is sent to the user equipment in each user equipment group by using the cross-carrier scheduling mode, the processor is used to read the program in the memory, and the following process is performed:

a group identity information receiving module, configured to receive group identity information sent by the base station;

a scheduling information receiving module, configured to receive a PDCCH that is sent by the base station and is scrambled by using the group identifier information, where the PDCCH carries scheduling information;

The uplink data sending module is configured to send the PUSCH according to the indication of the scheduling information after competing for resources, and send information identifying the device.

Preferably, when the PUSCH is sent according to the indication of the foregoing scheduling information, the uplink data sending module is configured to:

The user equipment identification parameter receiving module is further configured to: before the uplink data sending module sends the PUSCH according to the indication of the scheduling information, and sends the information identifying the device, and receives the base station. Sending a parameter for identifying the UE in the UE group; when transmitting the information identifying the device, the uplink data sending module is configured to: according to the parameter used to identify the UE in the UE group, generate information for sending the identifier device send.

Preferably, the parameter for identifying the UE in the UE group may include: a parameter for determining a cyclic offset of the uplink demodulation pilot; and generating a transmission identifier according to the parameter used to identify the UE in the UE group. When the information of the device is transmitted, the uplink data sending module is configured to: generate an uplink demodulation pilot according to a parameter used to determine a cyclic offset of the uplink demodulation pilot, and send the uplink demodulation pilot.

Preferably, the parameter for identifying the user equipment in the user equipment group may also include: a value for identifying the UE in the UE group; and generating, according to the parameter for identifying the UE in the UE group, generating the sending identifier When the information is sent, the uplink data sending module is configured to: send an uplink channel, where the uplink channel carries a value for identifying the UE in the UE group.

Preferably, the uplink channel is a physical uplink control channel.

Based on the same inventive concept as the method, the embodiment of the present invention further provides a UE, including:

Receiving group identification information sent by the base station by using the transceiver;

Receiving, by the transceiver, a PDCCH that is sent by the base station and is scrambled by using the group identifier information, where the PDCCH carries scheduling information;

After competing for the resource, the PUSCH is sent by the transceiver according to the indication of the scheduling information, and the information identifying the device is sent by the transceiver;

A memory that holds data used by the processor to perform operations.

Preferably, when the PUSCH is sent according to the indication of the scheduling information, the processor is configured to read the program in the memory, and perform the following process:

Preferably, the processor is further configured to: read a program in the memory, and perform the following process: before the uplink data sending module sends the PUSCH according to the indication of the scheduling information, and sends the information identifying the device. Receiving, by the base station, a parameter for identifying the UE in the UE group; when transmitting the information identifying the device, the processor is configured to read the program in the memory, and perform the following process: according to the foregoing, the UE is used to identify the UE in the UE group. The parameter generates and sends a message identifying the device and sends it.

Preferably, the parameter for identifying the UE in the UE group may include: a parameter for determining a cyclic offset of the uplink demodulation pilot; and generating a transmission identifier according to the parameter used to identify the UE in the UE group. When the information of the device is transmitted and transmitted, the processor reads the program in the memory, and performs the following process: generating an uplink demodulation pilot and transmitting according to the parameter for determining the cyclic offset of the uplink demodulation pilot.

Preferably, the parameter for identifying the user equipment in the user equipment group may also include: a value for identifying the UE in the UE group; and generating, according to the parameter for identifying the UE in the UE group, generating the sending identifier When the information is transmitted and sent, the processor reads the program in the memory, and performs the following process: transmitting an uplink channel carrying a value for identifying the UE within the UE group.

Preferably, the uplink channel is a physical uplink control channel.

Based on the same inventive concept as the method, the embodiment of the present invention further provides an uplink scheduling system, including a base station and a UE to be scheduled;

The base station is configured to: group the UEs to be scheduled; assign group identification information to each UE group, and send the group identification information allocated to the UE group in each UE group to the UEs in each UE group; a PDCCH scrambled using the group identification information of the UE group in which the UE is located, where the PDCCH carries scheduling information;

The UE to be scheduled is configured to: receive the group identity information sent by the base station, receive the PDCCH that is sent by the base station and use the group identity information to be scrambled; after contending for the resource, send the PUSCH according to the indication of the scheduling information, and send the identifier of the UE. Information.

Preferably, after the base station groups the user equipments to be scheduled, the user equipment sends a physical uplink shared channel to the subframe corresponding to the physical downlink control channel that is scrambled by the group identifier information of the user equipment group in which the user equipment group is located. For: allocating user equipments in each user equipment group with parameters for identifying the user equipment in the user equipment group;

The user equipment to be scheduled sends a physical uplink shared channel according to the indication of the scheduling information, and sends an identifier. The information of the user equipment is used to: receive a parameter that is sent by the base station to identify the user equipment in the user equipment group; and send information that identifies the user equipment, including: Identify the parameters of the user equipment, generate and send information identifying the user equipment and send it.

The method, the device and the system provided by the embodiment of the present invention, the base station groups the UEs to be scheduled, and sends the same PDCCH to each group of UEs, where the PDCCH carries scheduling information. That is, the base station schedules the same uplink resource for each UE in the same group. Each UE of the same group competes for the same uplink resource, and the probability of successfully competing for the uplink resource is greater than the probability that the single UE competes for the uplink resource. As long as the UE in the same group competes with the uplink resource scheduled by the base station, the PUSCH is sent on the uplink resource. Therefore, the technical solution provided by the embodiment of the present invention improves the efficiency of the uplink scheduling and the uplink resource utilization. Further, the base station allocates the UEs to be scheduled, and assigns group identification information to each UE group, that is, assigns the same identification information to each UE in the same group, instead of assigning identification information to each UE. Then, the PDCCH can be used for uplink scheduling of each UE in the same group, thereby improving downlink control efficiency and saving downlink resources.

DRAWINGS

FIG. 1 is a flowchart of a method performed by a base station and a UE according to an embodiment of the present invention;

2 is a flowchart of a method of a base station side according to an embodiment of the present invention;

FIG. 3 is a flowchart of a UE side method according to an embodiment of the present invention;

4 is a schematic diagram of a device according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of another apparatus according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a UE according to an embodiment of the present invention.

detailed description

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In the following description, the implementation of the cooperation between the base station side and the UE side will be described first, and then the implementation from the base station side and the UE side will be described separately, but this does not mean that the two must be implemented together. In fact, when the base station When the side is separately implemented from the UE side, the problems existing on the base station side and the UE side are also solved, but when the two are combined, a better technical effect is obtained.

The uplink scheduling method implemented by the base station and the UE in the embodiment of the present invention is as shown in FIG. 1 , and specifically includes the following operations:

Step 100: The base station groups the UEs to be scheduled.

Because it is an uplink scheduling, the UE to be scheduled is a UE that needs to perform uplink scheduling.

It should be noted that the base station may group all UEs to be scheduled within a predetermined time period, or may Some UEs to be scheduled within a certain time period are grouped. If the UEs to be scheduled are grouped, and the UEs are specifically selected for the grouping, the present invention is not limited by the requirements of the actual application.

Step 110: The base station allocates group identification information for each UE group, and sends group identification information allocated to the UE group in each UE group.

After grouping, the UEs of the same group constitute a UE group.

In the embodiment of the present invention, preferably, the group identification information is a C-RNTI.

In the embodiment of the present invention, the C-RNTI configured for the UE group is also referred to as a group C-RNTI, because the C-RNTI is configured for the UE group, and the C-RNTI is not configured for the specific UE.

It should be noted that the group identification information is not limited to the C-RNTI, but the information that can identify the UE group to distinguish different UE groups can be used as the group identification information. For example, the group identification information may also be a value, and different values are configured for different UE groups to distinguish different UE groups.

Preferably, the group identification information allocated to the UE group in which the UE group is located is transmitted to the UEs in each UE group by radio resource control (RRC) signaling.

Step 120: The UE to be scheduled receives the group identification information sent by the base station.

In this step, the UE to be scheduled refers to each UE that is grouped.

Step 130: The eNB sends a PDCCH that is scrambled by the group identity information of the UE group in which the UE is located, and the PDCCH carries the scheduling information.

In the embodiment of the present invention, the scheduling information is a UL grant.

Step 140: The UE to be scheduled receives the PDCCH sent by the base station and scrambled by using the group identification information.

Step 150: After the UE to be scheduled to compete for the resource, the UE sends a PUSCH according to the indication of the scheduling information carried in the received PDCCH, and sends information identifying the UE.

According to the method provided by the embodiment of the present invention, the base station groups the UEs to be scheduled, and sends the same PDCCH to each group of UEs, where the PDCCH carries scheduling information. That is, the base station schedules the same uplink resource for each UE in the same group. Each UE of the same group contends for the same uplink resource. In the case where devices of other unlicensed systems (such as WIFI, Bluetooth) exist, the probability that a group of UEs successfully contend for uplink resources is greater than the probability that a single UE contends for uplink resources. As long as one UE in the same group competes with the uplink resource scheduled by the base station, the PUSCH is sent on the uplink resource. Therefore, the technical solution provided by the embodiment of the present invention improves the efficiency of the uplink scheduling and the uplink transmission efficiency. Further, the base station allocates the UEs to be scheduled, and assigns group identification information to each UE group, that is, assigns the same identification information to each UE in the same group, instead of assigning identification information to each UE. Then, the PDCCH can be used for uplink scheduling of each UE in the same group, thereby improving downlink control efficiency and saving downlink resources.

The uplink scheduling method of the base station side provided by the embodiment of the present invention is as shown in FIG. 2, and specifically includes the following operations:

Step 200: Group the UEs to be scheduled.

Step 210: Assign group identification information to each UE group, and send the UEs in the UE groups to the UEs in the UE groups. The group identification information assigned by the group.

Step 220: Send a PDCCH scrambled by the group identity information of the UE group in which the UE is located, and the PDCCH carries the scheduling information.

For example, UE1, UE2, UE3, and UE4 to be scheduled are divided into two UE groups, wherein UE group 1 includes UE1 and UE2, UE group 2 includes UE3 and UE4, and UE group 1 is configured with group identification information 1, The group identification information 2 is configured for the UE group 2; the PDCCH 1 scrambled with the group identification information 1 is transmitted to the UE1 and the UE2 in the UE group 1, and the PDCCH 2 scrambled using the group identification information 2 is transmitted to the UE3 and the UE4 in the UE group 2. The PDCCH 1 carries the scheduling information 1 and the PDCCH 2 carries the scheduling information 2.

After transmitting the PDCCH scrambled by the group identity information of the UE group in the UE group, the PUSCH may be received on the subframe corresponding to the PDCCH that is scrambled by the group identity information according to the timing relationship, and the transmission is determined to be sent. UE of the PUSCH.

For example, the PUSCH is received in the subframe corresponding to the PDCCH1, and the transmitting UE of the received PUSCH is determined; and the PUSCH is received in the subframe corresponding to the PDCCH 2, and the transmitting UE of the received PUSCH is determined.

The timing relationship refers to a timing relationship between a PDCCH carrying a UL grant and a PUSCH indicated by the UL grant. That is, there is a certain timing relationship between the PDCCH carrying the UL grant and the PUSCH indicated by the UL grant. The PDCCH carrying the UL grant is transmitted before the PUSCH k (k>=4) subframes. Therefore, the subframe corresponding to the PDCCH refers to a subframe in which the PUSCH corresponding to the PDCCH is located in the timing relationship, and the base station learns the subframe in which the PUSCH is received according to the timing relationship.

The process of receiving the PUSCH includes performing descrambling on the PUSCH. Preferably, the scrambling code initialized by the group identification information is used to descramble the PUSCH in the subframe corresponding to the PDCCH scrambled by the group identification information.

To determine which UE the received PUSCH is sent, it is necessary to acquire the identification information of the UE associated with the received PUSCH. The identification information of the UE may be an existing UE identifier, and the base station has acquired the UE identifier and saved, for example, an International Mobile Subscriber Identity (IMSI) before the uplink scheduling; correspondingly, the base station receives the PUSCH, The UE identifier associated with the PUSCH is also received, and the received UE identifier is matched with the saved UE identifier to determine which UE the received PUSCH is sent. The identification information of the UE may also be in an uplink scheduling process, and the base station is configured for the UE. Then, after the UEs to be scheduled are grouped according to the foregoing method, any UE may be separately sent to the UE after the PUSCH is sent in the subframe corresponding to the PDCCH in which the group identification information of the UE group is located. The UE in the middle allocates parameters for identifying the UE within the UE group, and transmits to the UEs in each UE group the parameters assigned thereto for identifying the UE within the UE group. Preferably, when each group of UEs is assigned group identification information, the UE is allocated parameters for identifying the UE in the UE group. Preferably, the parameters allocated for identifying the UE within the UE group are transmitted to the UEs in the respective UE groups through RRC signaling.

It should be noted that the parameters of the different groups of UEs for identifying the UEs in the UE group may be the same or different, which is not limited by the present invention.

Since the cyclic offset of the uplink demodulation pilots of each UE in each group is different, preferably, the foregoing parameters for identifying the UE in the UE group may include: a loop for determining an uplink demodulation pilot. The offset parameter. Each UE within the same group is distinguished by assigning different parameters for determining the cyclic offset of the uplink demodulation pilot for each UE within the same group.

Correspondingly, the base station pre-configures a PUSCH Demodulation Reference Signal (DMRS) sequence. For example, Table 1 or Table 2 is pre-configured to the UE.

The Cyclic Shift Field in Table 1 or Table 2 is a parameter used to determine the cyclic offset of the uplink demodulation pilot.

This parameter can be transmitted to the UE in RRC dedicated signaling.

Table 1 Cyclic Shift Field and

Value mapping table

Table 2 Cyclic Shift Field and

And mapping table of OCC values

The foregoing parameters for identifying the UE in the UE group may also include: a value for identifying the UE in the UE group. Each UE within the same group is distinguished by assigning different values for each UE within the same group to identify the UE within the UE group.

The above value for identifying the UE within the UE group will be carried in the PUCCH, so that the base station determines the UE transmitting the PUSCH. If the PUCCH format 1b can carry 2-bit information, it can carry "00", "01", The four values of "10" and "11", if PUCCH format 2 is used, can carry 20 bits of information. If bit map indication is used, 20 different values can be used. The base station can configure any of the above values to any UE in the group for the UE within the zone packet. It should be noted that the channel format carrying the value must be pre-agreed by the UE and the base station.

Based on the foregoing method for receiving the PUSCH, the method for determining the UE that sends the PUSCH may be: receiving the information of the UE that is sent by the UE, and determining the sender UE of the received PUSCH according to the information of the identifier UE.

If the parameter for determining the cyclic offset of the uplink demodulation pilot is configured for the UE, the uplink demodulation pilot may be received and blindly detected, and the UE that sends the PUSCH is determined according to the blind detection result, where the information of the UE is identified. It can be obtained from the uplink demodulation pilot. Specifically, after the uplink demodulation pilot is blindly detected, the cyclic offset of the uplink demodulation pilot is obtained, and then the parameter for determining the cyclic offset of the uplink demodulation pilot is obtained according to the cyclic offset. The UE corresponding to the parameter is searched according to the configuration table of the parameters of the different UEs in the base station configuration group, and the searched UE is the UE that sends the PUSCH. The detection of the uplink demodulation pilot can be performed by means of correlation detection.

The uplink demodulation pilot r ^PUSCH (.) can be expressed by the following formula (1):

Formula 1)

Where m=0,1 represents two columns of reference symbols within one subframe;

n represents the length of the frequency domain reference symbol;

The definition can be found in section 5.5.1 of the 3GPP Protocol 36.211 specification.

The cyclic shift α=2πn _cs /12 used in different time slots, where n _{cs is} defined as the following formula (2)

Formula (2)

among them,

Is a broadcast value whose value is selected from the table in the 3GPP Protocol 36.211 specification.

Determined by a cyclic shift of a Demodulation Reference Signal (DMRS) field indicating the most recent downlink control information (DCI) format0, and the corresponding transport block (TB) corresponds to the corresponding PUSCH transmission, its

See the 3GPP Protocol 36.211 specification for the values. In 3GPP protocol 36.211 version 11, in order to support support for uplink SU-MIMO and MU-MIMO, a new table expression is introduced in the DCI Cyclic Shift Field and

The value and the value of the Orthogonal Cover Code (OCC) are demodulated.

If the UE is configured with a value for identifying the UE within the UE group, then an uplink channel carrying a value for identifying the UE within the UE group may be received, and the received value for identifying the UE within the UE group is determined to be received. The transmitting end UE of the PUSCH, wherein the uplink channel is information identifying the UE. For example, after receiving the uplink channel, the UE may be used to obtain a value for identifying the UE in the UE group, and the UE corresponding to the value may be searched for, that is, the UE that sends the PUSCH.

Preferably, the uplink channel carrying the value for identifying the UE within the UE group may be a PUCCH.

In the embodiment of the present invention, there are multiple implementation manners of the UE to be scheduled, for example, a random grouping manner or a grouping according to a predetermined rule. Here are a few ways to group:

The UE to be scheduled may be grouped according to the CQI fed back by the UE to be scheduled according to the method of any of the foregoing base station side methods. For example, the CQI quality is divided into a range, and the UEs whose CQI quality is in the same range are grouped into one group. The user equipment to be scheduled may be grouped according to the RSRP measurement report result of the UE to be scheduled; for example, the RSRP is divided into several ranges, and the UEs whose RSRP is in the same range are grouped into one group.

Based on the foregoing any base station side method embodiment, preferably, before the UE to be scheduled is grouped, it may further determine whether to perform group scheduling according to the acquired auxiliary information and/or statistical information; when it is determined that the group scheduling is performed, the to-be-scheduled UE grouping; when it is determined that group scheduling is not performed, uplink scheduling is performed according to the existing uplink scheduling mode.

For example, based on the auxiliary information obtained by the measured or other channels, it is known whether there is deployment of other unlicensed systems such as WIFI around the base station. If there is a WIFI deployment around the LTE base station, the interference situation around the UE may be further determined based on the probability of receiving the PUSCH transmission after the PDCCH scheduling is sent. If the PDCCH scheduling success rate is low (for example, less than 70%), and there are multiple users waiting at the moment. Transfer data, you can start group scheduling transmission.

Based on any of the foregoing method embodiments, the PDCCH that is scrambled by using the group identification information of the UE group in which the UE is located may be sent to the UE in each UE group by using the cross-carrier scheduling mode; for example, the PDCCH is sent in the licensed frequency band, and the scheduled PUSCH is sent. Sent in an unlicensed band. The PDCCH that is scrambled by using the group identification information of the UE group in which the UE is located may be sent to the UE in each UE group, for example, the PDCCH and the scheduled PUSCH are sent in the unlicensed frequency band.

The uplink scheduling method on the base station side provided by the embodiment of the present invention is as shown in FIG. 3, and specifically includes the following operations:

Step 300: Receive group identification information sent by a base station.

Step 310: Receive a PDCCH that is sent by the base station and is scrambled by using the group identifier information, where the PDCCH carries scheduling information.

Step 320: After competing for resources, send a PUSCH according to the indication of the scheduling information, and send information identifying the UE.

The UE can compete for uplink subframe resources by using the mode before talk.

Preferably, the PUSCH is transmitted on the subframe corresponding to the received PDCCH. For example, in the subframe corresponding to the received PDCCH, the PUSCH scrambled by the scrambling code initialized by the group identification information may be transmitted according to the instruction of the scheduling information.

In the foregoing step 320, the information identifying the local UE may be carried in the PUSCH, or may be through other parties. Send.

For example, before step 320, the parameter that is sent by the foregoing base station to identify the UE in the UE group is received. Then, according to the foregoing parameter for identifying the UE in the UE group, information for transmitting and identifying the UE is generated and sent. Preferably, the parameter identifying the UE in the UE group sent by the base station is received when receiving the group identity information of the base station.

For another example, UE-specific parameters (such as IMSI) may also be transmitted as information identifying the UE.

Specifically, the UE determines, according to the received parameter used to determine the cyclic offset of the uplink demodulation pilot, and Table 1 or Table 2 above.

Further, an uplink demodulation pilot is generated.

Preferably, the foregoing parameter for identifying the UE in the UE group may also include: a value for identifying the UE in the UE group. Correspondingly, a PUCCH is transmitted, and the PUCCH carries a value for identifying the UE in the UE group.

For example, the UE carries a value in the PUCCH for identifying the UE within the UE group. Specifically, the PUCCH channel may be sent on some time-frequency resources reserved when the UE sends the PUSCH channel. The PUCCH format 1b can carry 2-bit information, and can carry four values of "00", "01", "10", and "11" for four UEs in the zone packet. If PUCCH format 2 is used, 20-bit information can be carried. If the bitmap indication mode is used, 20 different UEs in the group can be indicated by 20 different values.

Based on the same inventive concept as the method, the embodiment of the present invention further provides an uplink scheduling apparatus, as shown in FIG. 4, including:

a user equipment grouping module 401, configured to group user equipments to be scheduled;

The group identification information configuration module 402 is configured to allocate group identification information for each user equipment group, and send group identification information allocated to the user equipment group of the user equipment group to the user equipment group;

The uplink scheduling module 403 is configured to send, to the user equipment in each user equipment group, a physical downlink control channel that is scrambled by using the group identifier information of the user equipment group in which the user equipment group is located, where the physical downlink control channel carries scheduling information.

Based on any of the foregoing device embodiments, preferably, further comprising a user equipment identification parameter configuration module, configured to After the user equipment grouping module groups the user equipments to be scheduled, the user equipments respectively send the physical uplink shared channels in the subframe corresponding to the physical downlink control channel that is scrambled by the group identifier information of the user equipment group in which the user equipment group is located. The user equipment in the device group allocates parameters for identifying the user equipment within the user equipment group, and transmits to the user equipment in each user equipment group a parameter assigned thereto for identifying the user equipment within the user equipment group.

A value used to identify a user device within a group of user devices.

Preferably, when determining the user equipment that sends the physical uplink shared channel, the uplink data receiving module is configured to:

The uplink demodulation pilot is received and blindly detected, and the user equipment that sends the physical uplink shared channel is determined according to the blind detection result.

Preferably, the cross-carrier scheduling mode is used to separately send and use the user equipment in each user equipment group. When the group identification information of the user equipment group is scrambled by the physical downlink control channel, the uplink scheduling module is used to:

Based on the same inventive concept as the method, the embodiment of the present invention further provides a base station, as shown in FIG. 5, including:

The processor 500 is configured to read a program in the memory 520 and perform the following process:

Grouping UEs to be scheduled;

Allocating group identification information to each UE group, and sending group identification information allocated to the UE group in each UE group to the UE group in each UE group;

Transmitting, by the transceiver 510, the PDCCHs that are scrambled by the group identity information of the UE group in which the UE is located, and the PDCCH carries the scheduling information;

The transceiver 510 is configured to receive and transmit data under the control of the processor 500.

In FIG. 5, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 500 and various circuits of memory represented by memory 520. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 510 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.

Based on the same inventive concept as the method, the embodiment of the present invention further provides an uplink scheduling device, as shown in FIG. 6, including:

The group identification information receiving module 601 is configured to receive group identification information sent by the base station;

The scheduling information receiving module 602 is configured to receive a PDCCH that is sent by the base station and that is scrambled by using the group identifier information, where the PDCCH carries scheduling information.

The uplink data sending module 603 is configured to send the PUSCH according to the indication of the scheduling information after competing for the resource, and send information identifying the device.

Preferably, the uplink channel is a PUCCH.

Based on the same inventive concept as the method, the embodiment of the present invention further provides a UE, as shown in FIG. 7, including:

The processor 700 is configured to read a program in the memory 720 and perform the following process:

Receiving, by the transceiver 710, group identification information sent by the base station;

Receiving, by the transceiver 710, a PDCCH that is sent by the base station and is scrambled by using the group identifier information, where the PDCCH carries scheduling information;

After competing for the resource, the PUSCH is sent by the transceiver 710 according to the indication of the scheduling information, and the information identifying the device is sent by the transceiver 710;

The transceiver 710 is configured to receive and transmit data under the control of the processor 700.

Here, in FIG. 7, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 700 and various circuits of memory represented by memory 720. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 710 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 730 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 in performing operations.

The base station is configured to: group the UEs to be scheduled; assign group identification information to each UE group, and send the group identification information allocated to the UE group in the UE group to be sent to the UEs in each UE group; a PDCCH scrambled using the group identification information of the UE group in which the UE is located, where the PDCCH carries scheduling information;

The UE to be scheduled is configured to: receive the group identity information sent by the base station, receive the PDCCH that is sent by the base station and use the group identity information to be scrambled; after contending for the resource, send the PUSCH according to the indication of the scheduling information, and send the identifier. Information about this UE.

Preferably, after the base station groups the user equipments to be scheduled, the user equipment sends a physical uplink shared channel to the subframe corresponding to the physical downlink control channel that is scrambled by the group identifier information of the user equipment group in which the user equipment group is located. For: assigning, by the user equipment in each user equipment group, a parameter for identifying the user equipment in the user equipment group, and sending the user equipment in each user equipment group to be allocated for identification in the user equipment group. User equipment parameters;

Before the user equipment to be scheduled sends the physical uplink shared channel according to the indication of the scheduling information, and sends the information identifying the user equipment, the method is further configured to: receive, by the base station, the user equipment that is used to identify the user equipment in the user equipment group. And sending the information identifying the user equipment according to the parameter used to identify the user equipment in the user equipment group, and generating and transmitting the information identifying the user equipment.

The method, device and system provided by the embodiments of the present invention are applicable to scheduling resources on a carrier of an unlicensed frequency band for uplink transmission. Correspondingly, the scheduling information sent by the base station indicates the resources for the uplink data transmission on the carrier of the unlicensed frequency band, and the UE competes for the resources on the carrier of the unlicensed frequency band indicated by the scheduling information. Preferably, the LBT mode competes for resources. It should be noted that the method, the device and the system provided by the embodiments of the present invention are also applicable to scheduling other resources for uplink data transmission, and the scheduled resources need to be occupied by the UE in a competitive manner.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing, such as a computer or other The instructions executed on the programmable device provide steps for implementing the functions specified in one or more blocks of the flowchart or in a flow or block of the flowchart.

While the preferred embodiment of the invention has been described, it will be understood that Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

An uplink scheduling method, comprising:

Grouping user equipments to be scheduled;

Allocating group identification information to each user equipment group, and sending group identification information allocated to the user equipment group of each user equipment group to the user equipment group;

The physical downlink control channel scrambled by the group identity information of the user equipment group in which the user equipment group is located is sent to the user equipment in each user equipment group, where the physical downlink control channel carries scheduling information.
The method according to claim 1, wherein after the physical downlink control channel that is scrambled by the group identification information of the user equipment group in which the user equipment group is located is sent to the user equipment in each user equipment group, the method further includes:

And receiving, according to the timing relationship, a physical uplink shared channel on a subframe corresponding to the physical downlink control channel that is scrambled by the group identifier information, and determining a user equipment that sends the physical uplink shared channel.
The method according to claim 2, wherein the receiving the physical uplink shared channel on the subframe corresponding to the physical downlink control channel that is scrambled by the group identification information comprises:

The scrambling code initialized by the group identification information is used to descramble the physical uplink shared channel on the subframe corresponding to the physical downlink control channel scrambled by the group identification information.
The method according to claim 2, wherein after the user equipment to be scheduled is grouped, the user equipment sends the physical to the subframe corresponding to the physical downlink control channel that is scrambled by the group identifier information of the user equipment group in which the user equipment group is located. Before the uplink shared channel, the method further includes:

Assigning, to the user equipment in each user equipment group, parameters for identifying the user equipment in the user equipment group, and transmitting, to the user equipment in each user equipment group, the user equipment for identifying the user equipment in the user equipment group. parameter.
The method according to claim 4, wherein the parameters for identifying the user equipment in the user equipment group include:

A parameter used to determine the cyclic offset of the uplink demodulation pilot.
The method according to claim 4, wherein the parameters for identifying the user equipment in the user equipment group include:

A value used to identify a user device within a group of user devices.
The method according to any one of claims 4 to 6, wherein determining the user equipment that sends the physical uplink shared channel comprises:

And receiving, by the user equipment, the information that identifies the user equipment, and determining, according to the information that identifies the user equipment, the user equipment that sends the physical uplink shared channel.
The method according to claim 7, wherein receiving the user equipment sent by the user equipment And determining, according to the information that identifies the user equipment, the user equipment that sends the physical uplink shared channel, including:

The uplink demodulation pilot is received and blindly detected, and the user equipment that sends the physical uplink shared channel is determined according to the blind detection result.
The method according to claim 7, wherein the receiving the information of the user equipment that is sent by the user equipment, and determining the user equipment that sends the physical uplink shared channel according to the information that identifies the user equipment, includes:

Receiving an uplink channel carrying a value for identifying the user equipment in the user equipment group, and determining, according to the value for identifying the user equipment in the user equipment group, the user equipment that sends the physical uplink shared channel.
The method according to claim 9, wherein the uplink channel carrying a value for identifying the user equipment in the user equipment group is a physical uplink control channel.
The method according to any one of claims 1 to 10, wherein the grouping of user equipments to be scheduled comprises:

Decoding the user equipment to be scheduled according to the channel quality indication fed back by the user equipment to be scheduled; or

Receiving the power measurement report result according to the reference signal of the user equipment to be scheduled, and grouping the user equipments to be scheduled.
The method according to any one of claims 1 to 10, wherein before the grouping of the user equipments to be scheduled, the method further comprises:

Determining whether to perform group scheduling according to the obtained auxiliary information and/or statistical information;

Group the user equipments to be scheduled, including:

When it is determined that the group scheduling is performed, the user equipments to be scheduled are grouped.
The method according to any one of claims 1 to 10, wherein the physical downlink control channel scrambled by the group identity information of the user equipment group in which the user equipment group is located is sent to the user equipment in each user equipment group, including:

The cross-carrier scheduling mode is used to separately send the physical downlink control channel that is scrambled by the group identifier information of the user equipment group in the user equipment group; or

The carrier downlink scheduling mode is used to send the physical downlink control channel scrambled by the group identity information of the user equipment group in the user equipment group.
The method according to claim 13, wherein the physical downlink control channel scrambled by the group identity information of the user equipment group in which the user equipment group is located is sent to the user equipment in each user equipment group by using the cross-carrier scheduling mode, including:

And transmitting, by the user equipment in each user equipment group, a physical downlink control channel that is scrambled by the group identity information of the user equipment group in the user equipment group, where the scheduling information carried in the physical downlink control channel is used for scheduling The physical uplink shared channel on the carrier of the licensed band.
An uplink scheduling method, comprising:

Receiving group identification information sent by the base station;

Receiving, by the base station, a physical downlink control channel that is scrambled by using the group identifier information, where the physical downlink control channel carries scheduling information;

After contending for the resource, the physical uplink shared channel is sent according to the indication of the scheduling information, and information identifying the user equipment is sent.
The method according to claim 15, wherein the transmitting the physical uplink shared channel according to the indication of the scheduling information comprises:

And transmitting, according to the indication of the scheduling information, a physical uplink shared channel scrambled by the scrambling code initialized by the group identification information.
The method according to claim 15 or 16, wherein before the transmitting the physical uplink shared channel and transmitting the information identifying the user equipment according to the indication of the scheduling information, the method further comprises: receiving the sending by the base station Identifying parameters of the user equipment in the user equipment group;

Sending information identifying the user equipment includes: generating and transmitting information identifying the user equipment according to the parameter used to identify the user equipment in the user equipment group.
The method according to claim 14, wherein the parameter for identifying a user equipment in a user equipment group comprises: a parameter for determining a cyclic offset of an uplink demodulation pilot;

Generating and transmitting information identifying the user equipment according to the parameter used to identify the user equipment in the user equipment group, including: generating an uplink demodulation according to a parameter used to determine a cyclic offset of the uplink demodulation pilot Frequency and send.
The method according to claim 17, wherein the parameter for identifying the user equipment in the user equipment group comprises: a value for identifying the user equipment in the user equipment group;

Generating, according to the parameter for identifying the user equipment in the user equipment group, the information of the user equipment is sent and sent, including: sending an uplink channel, where the uplink channel carries a user equipment for identifying the user equipment in the user equipment group. Value.
The method according to claim 19, wherein the uplink channel is a physical uplink control channel.
An uplink scheduling method, comprising:

The base station groups the user equipments to be scheduled;

The base station allocates group identification information for each user equipment group, and sends group identification information allocated to the user equipment group of each user equipment group to the user equipment group;

Receiving, by the user equipment to be scheduled, group identifier information sent by the base station;

The base station sends, to the user equipment in each user equipment group, a physical downlink control channel that is scrambled by using the group identifier information of the user equipment group in which the user equipment group is located, where the physical downlink control channel carries scheduling information;

Receiving, by the user equipment to be scheduled, a physical downlink control channel that is sent by the base station and scrambled by using the group identifier information;

After the user equipment to be scheduled competes for the resource, the user equipment sends a physical uplink sharing according to the indication of the scheduling information. Channel, and send information identifying the user equipment.
The method according to claim 21, wherein after the base station groups the user equipment to be scheduled, the subframe corresponding to the physical downlink control channel scrambled by the user equipment in the group identification information of the user equipment group in which the user equipment is located Before the physical uplink shared channel is sent, the method further includes: the base station separately assigning, to the user equipment in each user equipment group, a parameter for identifying the user equipment in the user equipment group, and the user equipment in each user equipment group Sending parameters assigned thereto for identifying user equipment within the user equipment group;

Before the user equipment to be scheduled sends the physical uplink shared channel according to the indication of the scheduling information, and sends the information identifying the user equipment, the method further includes: the user equipment to be scheduled receives the information sent by the base station The information of the user equipment is identified in the user equipment group. The information about the user equipment is sent, and the information for identifying the user equipment is generated and sent according to the parameter used to identify the user equipment in the user equipment group.
An uplink scheduling device, comprising:

a user equipment grouping module, configured to group user equipments to be scheduled;

The group identification information configuration module is configured to respectively assign group identification information to each user equipment group, and send group identification information allocated to the user equipment group of each user equipment group to the user equipment group;

The uplink scheduling module is configured to send, to the user equipment in each user equipment group, a physical downlink control channel that is scrambled by using the group identity information of the user equipment group in which the user equipment group is located, where the physical downlink control channel carries scheduling information.
The device according to claim 23, further comprising an uplink data receiving module, configured to:

And receiving, according to the timing relationship, a physical uplink shared channel on a subframe corresponding to the physical downlink control channel that is scrambled by the group identifier information, and determining a user equipment that sends the physical uplink shared channel.
The apparatus according to claim 24, wherein when the physical uplink shared channel is received on the subframe corresponding to the physical downlink control channel that is scrambled by the group identification information, the uplink data receiving module is configured to:

On the subframe corresponding to the physical downlink control channel scrambled by the group identification information, the scrambling code initialized by the group identification information is used to descramble the physical downlink shared channel.
The device according to claim 24, further comprising a user equipment identification parameter configuration module, configured to: after the user equipment grouping module groups the user equipments to be scheduled, the user equipment is in a group of the user equipment group Before the physical uplink shared channel is sent in the subframe corresponding to the physical downlink control channel that is scrambled by the identifier information, the user equipment in each user equipment group is allocated parameters for identifying the user equipment in the user equipment group, and The user equipment in the user equipment group sends a parameter assigned thereto for identifying the user equipment within the user equipment group.
The device according to claim 26, wherein the parameters for identifying the user equipment in the user equipment group include:

A parameter used to determine the cyclic offset of the uplink demodulation pilot.
The device according to claim 26, wherein the parameters for identifying the user equipment in the user equipment group include:

A value used to identify a user device within a group of user devices.
The device according to any one of claims 24 to 28, wherein, when determining the user equipment that sends the physical uplink shared channel, the uplink data receiving module is configured to:

And receiving, by the user equipment, the information that identifies the user equipment, and determining, according to the information that identifies the user equipment, the user equipment that sends the physical uplink shared channel.
The apparatus according to claim 29, wherein when determining the user equipment that sends the physical uplink shared channel, the uplink data receiving module is configured to:

The uplink demodulation pilot is received and blindly detected, and the user equipment that sends the physical uplink shared channel is determined according to the blind detection result.
The apparatus according to claim 29, wherein when determining the user equipment that sends the physical uplink shared channel, the uplink data receiving module is configured to:

Receiving an uplink channel carrying a value for identifying the user equipment in the user equipment group, and determining, according to the value for identifying the user equipment in the user equipment group, the user equipment that sends the physical uplink shared channel.
The apparatus according to claim 31, wherein the uplink channel carrying a value for identifying a user equipment in a user equipment group is a physical uplink control channel.
The device according to any one of claims 23 to 32, wherein the user equipment grouping module is configured to:

Decoding the user equipment to be scheduled according to the channel quality indication fed back by the user equipment to be scheduled; or

Receiving the power measurement report result according to the reference signal of the user equipment to be scheduled, and grouping the user equipments to be scheduled.
The apparatus according to any one of claims 23 to 32, further comprising: a scheduling mode determining module, configured to: determine whether to perform group scheduling according to the obtained auxiliary information and/or statistical information;

The user equipment grouping module is configured to group the user equipments to be scheduled when the scheduling mode decision module determines to perform group scheduling.
The device according to any one of claims 23 to 32, wherein the uplink scheduling module is configured to:

The cross-carrier scheduling mode is used to separately send the physical downlink control channel that is scrambled by the group identifier information of the user equipment group in the user equipment group; or

The carrier downlink scheduling mode is used to send the physical downlink control channel scrambled by the group identity information of the user equipment group in the user equipment group.
The device according to claim 35, wherein when the physical downlink control channel scrambled by the group identification information of the user equipment group in which the user equipment group is located is sent to the user equipment in each user equipment group by using the cross-carrier scheduling manner, The uplink scheduling module is used to:

Sending the user equipment group in the user equipment group of each user equipment group on the carrier on the licensed frequency band The group identification information is a physical downlink control channel that is scrambled, and the scheduling information carried in the physical downlink control channel is used to schedule a physical uplink shared channel on a carrier of an unlicensed frequency band.
An uplink scheduling device, comprising:

a group identity information receiving module, configured to receive group identity information sent by the base station;

a scheduling information receiving module, configured to receive a physical downlink control channel that is sent by the base station and that is scrambled by using the group identifier information, where the physical downlink control channel carries scheduling information;

And an uplink data sending module, configured to send, according to the indication of the scheduling information, a physical uplink shared channel, and send information identifying the device, after competing for resources.
The apparatus according to claim 37, wherein when the physical uplink shared channel is sent according to the indication of the scheduling information, the uplink data sending module is configured to:

And transmitting, according to the indication of the scheduling information, a physical uplink shared channel scrambled by the scrambling code initialized by the group identification information.
The device according to claim 37 or claim 38, further comprising a user equipment identification parameter receiving module, configured to: send, by the uplink data sending module, a physical uplink shared channel according to the indication of the scheduling information, and send the identifier Before receiving the information of the device, receiving, by the base station, a parameter for identifying the user equipment in the user equipment group;

When the information identifying the device is sent, the uplink data sending module is configured to: generate and send information for identifying the device according to the parameter used to identify the user equipment in the user equipment group.
The apparatus according to claim 39, wherein the parameter for identifying a user equipment in a user equipment group comprises: a parameter for determining a cyclic offset of an uplink demodulation pilot;

Determining, according to the parameter for identifying the user equipment in the user equipment group, the information that is sent to identify the local device, and sending the information, the uplink data sending module is configured to: according to the cyclic offset used to determine the uplink demodulation pilot Parameters, generate uplink demodulation pilots and transmit.
The device according to claim 39, wherein the parameter for identifying the user equipment in the user equipment group comprises: a value for identifying the user equipment in the user equipment group;

And the uplink data sending module is configured to: send an uplink channel, where the uplink channel is carried in the user, according to the parameter used to identify the user equipment in the user equipment group, and the information about the device is sent and sent. The value of the user device is identified in the device group.
The apparatus according to claim 41, wherein the uplink channel is a physical uplink control channel.
An uplink scheduling system, comprising: a base station and a user equipment to be scheduled;

The base station is configured to: group the user equipments to be scheduled; assign group identification information to each user equipment group, and send group identification information allocated to the user equipment group of each user equipment group; The user equipment in each user equipment group sends a physical downlink control message that is scrambled using the group identification information of the user equipment group in which it is located. Channel, the physical downlink control channel carries scheduling information;

The user equipment to be scheduled is used to: receive group identification information sent by the base station; receive a physical downlink control channel that is sent by the base station and is scrambled by using the group identifier information; after competing for resources, according to the scheduling The indication of the information sends a physical uplink shared channel and sends information identifying the user equipment.
The system according to claim 43, wherein the subframe corresponding to the physical downlink control channel scrambled by the user equipment in the group identification information of the user equipment group after the base station groups the user equipment to be scheduled Before the physical uplink shared channel is sent, the user equipment in each user equipment group is separately allocated a parameter for identifying the user equipment in the user equipment group, and is sent to the user equipment in each user equipment group. The assigned parameters for identifying the user equipment within the user equipment group;

Before the user equipment to be scheduled sends the physical uplink shared channel according to the indication of the scheduling information, and sends the information identifying the user equipment, the method is further configured to: receive, by the base station, the user equipment that is used to identify the user equipment in the user equipment group. And sending the information identifying the user equipment according to the parameter used to identify the user equipment in the user equipment group, and generating and transmitting the information identifying the user equipment.