WO2014134807A1

WO2014134807A1 - Power-saving method, user equipment and base station

Info

Publication number: WO2014134807A1
Application number: PCT/CN2013/072287
Authority: WO
Inventors: 胡振兴; 熊新; 宋巍巍
Original assignee: 华为技术有限公司
Priority date: 2013-03-07
Filing date: 2013-03-07
Publication date: 2014-09-12
Also published as: CN104969631B; CN104969631A

Abstract

Disclosed in the embodiment of the present invention are a power-saving method, user equipment and a base station, relating to the technical field of communications. The method comprises: the user equipment (UE) monitoring the physical downlink control channel (PDCCH) of a first base station by using a discontinuous reception (DRX) parameter configured by the first base station; and the UE entering the power-saving state after receiving the downlink resource allocation information sent by the first base station through the PDCCH. The present invention is applicable to monitoring of the user equipment (UE) for data transmission on the PDCCH of the base station.

Description

Power saving method, user equipment 1⁄2 station Technical field

The present invention relates to the field of communications technologies, and in particular, to a power saving method, a user equipment, and a base station. Background technique

With the development of mobile communication technology and the large-scale deployment of 3G (3rd Generation, 3rd Generation, 4th Generation, 4th Generation, 4th Generation Mobile Communication Technology) networks, high-speed data services have brought people A colorful application experience. Due to the large-scale growth of the user community, in response to the rapid growth of mobile data traffic, operators have proposed a scenario for small cell deployment. That is, in a place with a large number of mobile users, a cell with a small coverage area is deployed at a high density, for example, a Small Cell and a Small evolved Node B (Micro Base Station), which may also be called a secondary base station. More users can enjoy high-speed data services. At the same time, in order to manage the mobility management of the UE (User Equipment) under the coverage of the Macro eNB (Macro eNB) and the micro base station, the control plane connection of the UE can be maintained under the macro eNB. The user plane transmission remains under the micro base station. In this way, the UE can utilize both the wide bandwidth of the micro base station for data transmission, and the mobility management problem caused by the UE moving between the micro base stations.

When the UE is under the control of the macro base station and the micro base station, the UE may use a DRX (Discontinuous Reception) PDCCH (physical downlink control channel) for the macro base station in order to save power of the UE. Data transmission is monitored to save power. The principle of the DRX is as follows: The base station configures a set of DRX parameters and corresponding timers according to the current service characteristics of the UE. The UE calculates and expands according to the configured DRX parameters and some trigger events, and terminates the activation time. The UE only monitors the PDCCH channel during the activation time. , is dormant outside the activation time, saving power.

In the prior art, the RRC (Radio Resource Control) control plane signaling is sent to the UE by the macro base station, and the control plane signaling performs only one data packet for each downlink transmission, and the UE receives the data packet. After that, the PDCCH channel will continue to be monitored according to the DRX mechanism, if there is no follow-up The data packet is transmitted, and the UE enters a power saving state. Since there is only one downlink data packet, the process of the UE continuing to monitor the PDCCH channel wastes power. Summary of the invention

A power saving method, a user equipment, and a base station are provided, which can solve the problem of waste of power caused by the UE monitoring the control plane signaling sent by the macro base station, and save power for the UE. In a first aspect, a power saving method is provided, including:

The user equipment UE monitors the physical downlink control channel PDCCH of the first base station by using the discontinuous reception DRX parameter configured by the first base station;

After receiving the downlink resource allocation information sent by the first base station by using the PDCCH, the UE enters a power saving state.

In a first possible implementation manner, after the receiving, by the UE, the downlink resource allocation information sent by the first base station by using the PDCCH, entering the power saving state includes:

After receiving the downlink resource allocation information, the UE starts the inactivity timer, and enters a dormant state after the period of the Inactivity Timer is completed; or after the UE receives the downlink resource allocation information, Go to sleep.

Optionally, before the UE uses the DRX parameter configured by the first base station to monitor the PDCCH of the first base station, the method further includes: receiving, by the UE, the monitoring sent by the second base station by the first base station Instructing information, the interception indication information is used to indicate that the UE is listening to the PDCCH of the first base station.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, after receiving the downlink resource allocation information that is sent by the first base station by using the PDCCH, the UE enters a power saving state. Includes:

After receiving the downlink resource allocation information, the UE starts a static timer Inactivity Timer, and stops listening to the first base station after the period of the Inactivity Timer is completed. PDCCH; or, the UE stops listening to the PDCCH of the first base station after receiving the downlink resource allocation information.

The interception indication information includes: a first interception indication information, where the first interception indication information is used to indicate that the UE immediately listens to the PDCCH of the second base station; or, the second interception indication information, the second The monitoring indication information is used to indicate that the UE is listening to the PDCCH of the second base station after the interval setting time; or the third monitoring indication information, where the third monitoring indication information is used to indicate that the UE turns to the monitoring The start time of the PDCCH of the second base station, the start time is represented by the system frame number SFN and the subframe subframe.

In conjunction with the first possible implementation of the first aspect or the second possible implementation of the first aspect, in a third possible implementation, the period of the period of the Inactivity Timer is 0.

The interception indication information is carried in a radio resource control RRC message, a media access control MAC message, a physical layer message, or a physical layer signal. In a second aspect, a power saving method is provided, including:

The first base station configures a non-continuous receiving DRX parameter for the user equipment UE, so that the UE monitors the PDCCH of the first base station by using the DRX parameter, and receives the downlink resource allocation sent by the first base station by using the PDCCH. After the information, the UE enters a power saving state.

In a first possible implementation, after the first base station configures the user equipment UE to receive the discontinuous reception DRX parameter, the method further includes: the first base station sending the monitoring indication information to the second base station, so that The second base station forwards the interception indication information to the UE, where the interception indication information is used to instruct the UE to listen to the PDCCH of the first base station.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, the monitoring indication information includes: a first monitoring indication information, where the first monitoring indication information is used to indicate the UE immediately Listening to the PDCCH of the second base station; or, the second interception indication information, the second interception indication information is used to indicate that the UE listens to the second base station after the interval setting time PDCCH; or a third interception indication information, where the third interception indication information is used to indicate a start time of the PDCCH that the UE turns to the second base station, where the start time passes the system frame number SFN and the subframe subframe Said.

With the first possible implementation of the second aspect or the second possible implementation of the second aspect, in a third possible implementation manner, the interception indication information is carried in a radio resource control RRC message, media access Controls the sending of MAC messages, physical layer messages, or physical layer signals. In a third aspect, a user equipment is provided, including:

a monitoring unit, configured to monitor a physical downlink control channel PDCCH of the first base station by using a discontinuous reception DRX parameter configured by the first base station;

The power saving unit is configured to enter a power saving state after receiving the downlink resource allocation information sent by the first base station by using the PDCCH.

In a first possible implementation manner, the power saving unit includes:

a first power saving unit, configured to start a static timer Inactivity Timer after receiving the downlink resource allocation information, and enter a sleep state after the execution of the period of the Inactivity Timer; or

The second power saving unit is configured to enter a sleep state after receiving the downlink resource allocation information. Optionally, the user equipment further includes: a receiving unit, configured to receive, by the second base station, the monitoring indication information that is sent by the first base station, where the monitoring indication information is used to indicate that the user equipment is listening to the The PDCCH of a base station.

With the first possible implementation of the third aspect, in a second possible implementation, the power saving unit further includes:

a third power saving unit, configured to start a static timer Inactivity Timer after receiving the downlink resource allocation information, and stop listening to the PDCCH of the first base station after the period of the Inactivity Timer is completed; or, the fourth province The electrical unit is configured to stop listening to the PDCCH of the first base station after receiving the downlink resource allocation information. With reference to the first possible implementation manner of the third aspect or the second possible implementation manner of the third aspect, in a third possible implementation manner, the duration of the period of the Inactivity Timer is

0. In a fourth aspect, a base station is provided, including:

a configuration unit, configured to configure a non-continuous receiving DRX parameter for the user equipment UE, so that the UE monitors the PDCCH of the base station by using the DRX parameter, after receiving the downlink resource allocation information sent by the base station by using the PDCCH The UE enters a power saving state.

In a first possible implementation manner, the base station further includes:

And a sending unit, configured to send the monitoring indication information to the second base station, to enable the second base station to forward the monitoring indication information to the UE, where the monitoring indication information is used to indicate that the UE monitors a PDCCH of the base station. In a fifth aspect, a user equipment is provided, including:

a processor, configured to listen to the physical downlink control channel PDCCH of the first base station by using a discontinuous reception DRX parameter configured by the first base station; and, after receiving the downlink resource allocation information sent by the first base station by using the PDCCH , enter the power saving state.

In a first possible implementation manner, the processor is specifically configured to:

After receiving the downlink resource allocation information, the inactivity timer is started, and the sleep state is entered after the period of the Inactivity Timer is completed; or, after receiving the downlink resource allocation information, the sleep state is entered.

Optionally, the user equipment further includes: a receiver, configured to receive, by the second base station, the interception indication information sent by the first base station, where the interception indication information is used to instruct the user equipment to monitor the The PDCCH of a base station.

With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner, the processor is further configured to: start a static timer after receiving the downlink resource allocation information The Inactivity Timer stops listening to the PDCCH of the first base station after the period of the Inactivity Timer is completed; or stops listening to the PDCCH of the first base station after receiving the downlink resource allocation information.

In conjunction with the first possible implementation of the fifth aspect or the second possible implementation of the fifth aspect, in a third possible implementation, the period of the period of the Inactivity Timer is 0. In a sixth aspect, a base station is provided, including:

a processor, configured to configure a non-continuous receiving DRX parameter for the user equipment UE, so that the UE monitors the PDCCH of the base station by using the DRX parameter, after receiving the downlink resource allocation information sent by the base station by using the PDCCH The UE enters a power saving state.

In a first possible implementation manner, the base station further includes:

The transmitter is configured to send the interception indication information to the second base station, so that the second base station forwards the interception indication information to the UE, where the interception indication information is used to indicate that the UE monitors the PDCCH of the base station.

In the prior art, there is only one data packet for each downlink transmission of the control plane signaling. After receiving the data packet of the control plane signaling sent by the macro base station, the UE starts the timer according to the DRX mechanism to continue to monitor the macro base station. PDCCH, this monitoring process wastes power. Compared with the prior art, in the embodiment of the present invention, the user equipment UE monitors the physical downlink control channel PDCCH of the first base station by using the discontinuous reception DRX parameter configured by the first base station; and the UE receives the first base station. After the downlink resource allocation information sent by the PDCCH, the power saving state is entered. The UE can enter the power-saving state immediately after receiving the data packet of the downlink control plane signaling, and does not need to continue to monitor the PDCCH of the macro base station, thereby saving power for the UE. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following embodiments will be BRIEF DESCRIPTION OF THE DRAWINGS The drawings, which are used in the technical description, are described in detail in the drawings, and the drawings in the following description are only a few embodiments of the present invention, and those skilled in the art, without Other drawings can also be obtained from these figures.

FIG. 1 is a flowchart of a method according to an embodiment of the present invention;

2 is a flowchart of a method according to another embodiment of the present invention;

3 is a flowchart of a method according to another embodiment of the present invention;

4 is a flowchart of a method according to another embodiment of the present invention;

FIG. 5 is a flowchart of a method according to another embodiment of the present invention;

6 and FIG. 7 are schematic structural diagrams of user equipment according to another embodiment of the present invention;

FIG. 8 and FIG. 9 are schematic diagrams showing the structure of a base station according to another embodiment of the present invention;

10 and FIG. 11 are schematic structural diagrams of user equipment according to another embodiment of the present invention;

FIG. 12 and FIG. 13 are schematic diagrams showing the structure of a base station according to another embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In order to make the advantages of the technical solutions of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and embodiments. An embodiment of the present invention provides a power saving method. As shown in FIG. 1 , the method includes: 101. A user equipment UE monitors a physical downlink control channel of the first base station by using a discontinuous receiving DRX parameter configured by a first base station. PDCCH.

It should be noted that, the UE is controlled by the first base station and the second base station at the same time, and the control plane connection (RRC connection) of the UE is maintained at the first base station (macro base station), and the user plane transmission of the UE is maintained at the Two base stations (secondary base stations or micro base stations), so that the control plane and the user plane of the UE can be separated, and the UE can By using the wider bandwidth of the second base station for data transmission, it is also possible to reduce the mobility management problem caused by moving between different second base stations. Therefore, in the application scenario of the present invention, the first base station sends control plane signaling to the UE, and after receiving the data packet of the control plane signaling, the UE performs a power saving operation through step 102.

Optionally, the DRX parameter may include only the DRX parameter used by the PDCCH of the first base station, or the DRX parameter used by the PDCCH of the first base station and the PDCCH of the second base station.

102. After receiving the downlink resource allocation information sent by the first base station by using the PDCCH, the UE enters a power saving state.

The downlink resource allocation information may be a MAC (Media Access Control) PDU (Protocol Data Unit) of the control plane signaling.

For example, after receiving the downlink resource allocation information sent by the first base station by using the PDCCH, the UE enters a power saving state, including:

After receiving the downlink resource allocation information, the UE starts the inactivity timer, and enters a dormant state after the period of the Inactivity Timer is completed; or after the UE receives the downlink resource allocation information, Go to sleep. In the latter operation, after receiving the downlink resource allocation information, the UE does not start the Inactivity Timer and directly enters the sleep state.

Optionally, if the first base station is to send the control plane signaling data to the UE, the UE only listens to the PDCCH of the second base station, and the first base station needs to send a corresponding message to notify the UE to listen to the PDCCH of the first base station. For example, before the UE uses the DRX parameter configured by the first base station to listen to the PDCCH of the first base station, the method further includes: receiving, by the UE, the interception indication information that is sent by the second base station and sent by the first base station. The interception indication information is used to indicate that the UE listens to the PDCCH of the first base station.

In the above scenario, the UE monitors the PDCCHs of the two base stations at the same time, and consumes additional power. In order to enable the UE to monitor only the PDCCH of one base station for most of the time, after the UE receives the control plane signaling data of the first base station, The monitoring of the first base station PDCCH is immediately stopped. For example, the UE is After receiving the downlink resource allocation information sent by the first base station by using the PDCCH, entering the power saving state includes: starting, by the UE, the static timer Inactivity Timer after receiving the downlink resource allocation information, in the period of the Inactivity Timer After the execution is complete, the PDCCH of the first base station is stopped to be monitored; or the UE stops listening to the PDCCH of the first base station after receiving the downlink resource allocation information.

When the first base station sends the control plane signaling data packet to the UE, each downlink transmission has only one data packet. Therefore, after the UE receives the downlink resource allocation information sent by the first base station, the UE should try to shorten the UE to monitor the first base station PDCCH. The time, that is, shorten the running cycle of the Inactivity Timer. Preferably, when the UE starts the Inactivity Timer, the period of the Inactivity Timer is 0.

The interception indication information includes: a first interception indication information, where the first interception indication information is used to indicate that the UE immediately listens to the PDCCH of the second base station; or, the second interception indication information, the second The monitoring indication information is used to indicate that the UE is listening to the PDCCH of the second base station after the interval setting time; or the third monitoring indication information, where the third monitoring indication information is used to indicate that the UE turns to the monitoring The start time of the PDCCH of the second base station, and the start time is represented by an SFN (Systerm Frame Number) and a sub-frame.

The interception indication information is carried in an RRC message, a MAC message, a physical layer message, or a physical layer signal.

In the prior art, there is only one data packet for each downlink transmission of the control plane signaling. After receiving the data packet of the control plane signaling sent by the macro base station, the UE starts the timer according to the DRX mechanism to continue to monitor the macro base station. PDCCH, this monitoring process wastes power. Compared with the prior art, in the embodiment of the present invention, the user equipment UE monitors the physical downlink control channel PDCCH of the first base station by using the discontinuous reception DRX parameter configured by the first base station; and the UE receives the first base station. After the downlink resource allocation information sent by the PDCCH, the power saving state is entered. The UE can enter the power-saving state immediately after receiving the data packet of the downlink control plane signaling, and does not need to continue to monitor the PDCCH of the macro base station, thereby saving power for the UE. Another embodiment of the present invention provides a power saving method. As shown in FIG. 2, the method includes:

The first base station configures a non-continuous receiving DRX parameter for the user equipment UE, so that the UE monitors the PDCCH of the first base station by using the DRX parameter, and receives the downlink sent by the first base station by using the PDCCH. After the resource allocation information, the UE enters a power saving state.

It should be noted that, the UE is controlled by the first base station and the second base station at the same time, and the control plane connection (RRC connection) of the UE is maintained at the first base station (macro base station), and the user plane transmission of the UE is maintained at the Two base stations (secondary base stations or micro base stations), so that the control plane and the user plane of the UE can be separated, and the UE can use the wider bandwidth of the second base station for data transmission, and can also move between different second base stations. Mobility management issues. Therefore, in the application scenario of the present invention, the first base station sends control plane signaling to the UE.

Optionally, the DRX parameter may include only the DRX parameter used by the PDCCH of the first base station, or the DRX parameter used by the PDCCH of the first base station and the PDCCH of the second base station. The UE configures an Inactivity Timer according to the DRX parameter, and then monitors the PDCCH.

Optionally, if the first base station is to send the control plane signaling data to the UE, the UE only listens to the PDCCH of the second base station, and the first base station needs to send a corresponding message to notify the UE to listen to the PDCCH of the first base station. For example, after the first base station configures the user equipment UE to receive the discontinuous reception DRX parameter, the method further includes: the first base station sending the interception indication information to the second base station, so that the second base station sends the The UE forwards the interception indication information, where the interception indication information is used to instruct the UE to listen to the PDCCH of the first base station.

The interception indication information includes: a first interception indication information, where the first interception indication information is used to indicate that the UE immediately listens to the PDCCH of the second base station; or, the second interception indication information, the second The monitoring indication information is used to indicate that the UE is listening to the PDCCH of the second base station after the interval setting time; or the third monitoring indication information, where the third monitoring indication information is used to indicate that the UE turns to the monitoring Start time of the PDCCH of the second base station, the start time is passed The system frame number SFN and the subframe subframe are represented.

The interception indication information is carried in a radio resource control RRC message, a media access control MAC message, a physical layer message, or a physical layer signal.

In the prior art, there is only one data packet for each downlink transmission of the control plane signaling. After receiving the data packet of the control plane signaling sent by the macro base station, the UE starts the timer according to the DRX mechanism to continue to monitor the macro base station. PDCCH, this monitoring process wastes power. Compared with the prior art, in the embodiment of the present invention, the first base station configures a new set of DRX parameters for the UE, so that the UE configures the Inactivity Timer according to the parameter. After the UE receives the downlink resource allocation information sent by the first base station, the UE does not start the Inactivity Timer to directly enter the power-saving state, or starts an Inactivity Timer with a short period of 4, thereby greatly shortening the time for continuing to monitor the PDCCH of the first base station. Save power for the UE. Another embodiment of the present invention provides a power saving method. As shown in FIG. 3, the method includes:

301. The macro base station configures the UE to receive the discontinuous reception DRX parameter.

The DRX parameter is used by the UE to monitor SRB (Signal Radio Bearer) data transmission on the PDCCH of the macro base station.

302. The macro base station sends a DRX parameter to the UE.

303. The UE configures a static timer Inactivity Timer according to the DRX parameter.

304. When the UE receives the uplink resource allocation information sent by the macro base station, the static timer is started.

305. When the UE receives the downlink resource allocation information sent by the macro base station, the UE does not start the inactivity timer, and the UE enters a sleep state.

In the DRX mechanism, after receiving the data sent by the macro base station on the PDCCH, the UE starts or restarts the Inactivity Timer using the DRX cycle configured by the macro base station, if the UE receives the new DRX cycle again. The data, then the Inactivity Timer will restart, re-time; if the cycle is completed, the UE still does not receive new data, then the UE will enter the sleep state. For the downlink SRB data, it only has one data per transmission. Packet, so you don't need to start the Inactivity Timer to listen to the next packet, then the UE can go straight after receiving the first packet. Connect to sleep state, save UE power.

It should be noted that, if data transmission of control plane signaling exists between the micro base station side and the UE, the power saving method in this embodiment is also applicable on the base station side.

In the prior art, there is only one data packet for each downlink transmission of the control plane signaling. After receiving the data packet of the control plane signaling sent by the macro base station, the UE starts the timer according to the DRX mechanism to continue to monitor the macro base station. PDCCH, this monitoring process wastes power. Compared with the prior art, in the embodiment of the present invention, the user equipment UE receives the discontinuous reception DRX parameter configured by the macro base station; configures a static timer according to the DRX parameter, and uses the static timer to monitor the physical downlink control channel PDCCH of the macro base station. After receiving the downlink resource allocation information sent by the macro base station through the PDCCH, the UE does not start the inactivity timer and directly enters the sleep state. The UE can enter the dormant state immediately after receiving the data packet of the downlink control plane signaling, and reduce the time for the UE to monitor the PDCCH of the macro base station, thereby saving power for the UE. Another embodiment of the present invention provides a method for power saving a UE. As shown in FIG. 4, the method includes:

401. The macro base station configures the UE to receive the discontinuous reception DRX parameter.

The DRX parameter is used by the UE to monitor the SRB data transmission on the PDCCH of the macro base station.

402. The macro base station sends a DRX parameter to the UE.

403. The UE configures an uplink inactivity timer and a downlink inactivity timer according to the DRX parameter.

404. When the UE receives the uplink resource allocation information sent by the macro base station, start an uplink static timing crying port.

405. When the UE receives the downlink resource allocation information sent by the macro base station, start the downlink static timing crying port.

In the DRX mechanism, after receiving the data on the PDCCH, the UE starts or restarts the Inactivity timer using the period configured by the macro base station. During the running period, if the UE receives new data, the Inactivity timer will restart and re-time; if the period runs, The UE still does not receive new data, then the UE goes to sleep.

Preferably, the downlink static timer has a cycle time length of zero. For the downlink SRB data, there is only one data packet per transmission, so the downlink inactivity timer is not required to start the timer to monitor the next data packet using the period configured by the macro base station, that is, the period of the downlink inactivity timer can be set. If it is 0, then when the UE receives the data packet, it will directly enter the sleep state, saving the UE power.

Optionally, the period of the downlink inactivity timer can also be set to a smaller value, so that the UE can quickly enter the power saving state.

406. After the periodic operation of the downlink inactivity timer ends, the UE enters a sleep state.

In the prior art, there is only one data packet for each downlink transmission of the control plane signaling. After receiving the data packet of the control plane signaling sent by the macro base station, the UE starts the timer according to the DRX mechanism to continue to monitor the macro base station. PDCCH, this monitoring process wastes power. Compared with the prior art, in the embodiment of the present invention, the user equipment UE receives the discontinuous reception DRX parameter configured by the macro base station; configures the uplink inactivity timer and the downlink inactivity timer according to the DRX parameter, and uses the two static timers to monitor the macro base. a physical downlink control channel PDCCH of the station; after receiving the downlink resource allocation information sent by the macro base station by using the PDCCH, the UE starts a downlink inactivity timer, and waits for the UE to enter a sleep state after the period of the downlink inactivity timer is completed; Preferably, the downlink inactivity timer has a period duration of zero. The UE can enter the sleep state immediately after receiving the data packet of the downlink control plane signaling, and reduce the time for the UE to monitor the PDCCH of the macro base station, thereby saving power for the UE. Another embodiment of the present invention provides a method for power saving a UE. As shown in FIG. 5, the method includes: 501: A macro base station configures a discontinuous reception DRX parameter for a UE.

The DRX parameter is used by the UE to monitor data transmission on a physical downlink control channel PDCCH of the macro base station and the micro base station. For example, the macro base station and the micro base station cover the same UE, where the micro base station is configured to enable the UE to enjoy high locations where there are many mobile UE users. For the fast data service, in order to manage the mobility management of the UE, the user plane connection of the UE is maintained under the macro base station, and the user plane transmission of the UE is maintained under the micro base station. Separating the user plane and the control plane of the UE enables the UE to utilize the wide bandwidth of the micro base station for data transmission and the mobility management problem when the UE switches between different micro base stations.

502. The macro base station sends a DRX parameter to the UE.

503. The UE configures a static timer according to the DRX parameter, and performs monitoring on the PDCCH channel of the micro base station.

504. When the macro base station sends the SRB data to the UE, the macro base station sends the monitoring indication information to the micro base station.

The indication information may include: an identifier of the indicated UE, for example, a C-RNTI (Cell-Radio Temporary Identifier) of the UE, and optionally, the indication information may further include: a monitoring indication information, the first monitoring indication information is used to indicate that the UE immediately listens to the PDCCH of the micro base station, that is, the UE immediately listens to the PDCCH of the micro base station after receiving the first monitoring indication information; or, the second monitoring Instructing information, the second interception indication information is used to indicate that the UE listens to the PDCCH of the micro base station after the interval setting time, that is, after receiving the second interception indication information, the UE waits for a period of time and then listens to the micro PDCCH. a PDCCH of the base station; or a third interception indication information, where the third interception indication information is used to indicate a start time of the PDCCH that the UE turns to the micro base station, that is, the third intercept indication information includes a time point. The UE is designated to listen to the PDCCH of the micro base station at the time point, where the start time passes the SFN (System Frame Number) and Sub frame represents a frame, e.g., the start time is expressed in the form of SFN + sub frame.

It should be noted that, when the control plane connection of the UE is maintained in the macro base station, and the user plane transmission is maintained at the micro base station, the UE is preferentially monitored for data transmission on the PDCCH of the micro base station, and if the macro base station has data to be transmitted to the UE, the macro base station First, the monitoring indication information is sent to the micro base station, and the monitoring indication information is forwarded to the UE by the micro base station, so that the UE monitors the PDCCH of the macro base station; after receiving the data sent by the PDCCH on the macro base station, the UE stops monitoring the PDCCH of the macro base station. . So the UE does not have to monitor frequently Listening to the PDCCH of the macro base station saves the power of the UE.

505. The micro base station forwards the interception indication information to the UE.

506. The UE monitors the PDCCH channel of the macro base station according to the interception indication information.

507. When the UE receives the uplink resource allocation information sent by the macro base station, start the inactivity timer.

508. When the UE receives the downlink resource allocation information sent by the macro base station, the static timer is not started. In the DRX mechanism, after receiving the data sent by the macro base station on the PDCCH, the UE starts or restarts the Inactivity Timer using the DRX cycle configured by the macro base station, if the UE receives the new DRX cycle again. The data, then the Inactivity Timer will restart, re-time; if the cycle is completed, the UE still does not receive new data, then the UE will enter the sleep state. For the downlink SRB data, it only has one data per transmission. Packet, so there is no need to start the Inactivity Timer to listen to the next data packet, then when the UE receives the first data packet, it can directly enter the sleep state, saving the UE power.

Optionally, when the inactivity timer is configured, the period of the inactivity timer can also be set to a small value, so that the UE can start the inactivity timer when receiving the downlink SRB data, because the period value is small, The timer will run for a short period of time, causing the UE to go to sleep. Preferably, the period can be set to zero.

509. After receiving the SRB data sent by the macro base station, the UE stops listening to the data transmission on the PDCCH of the macro base station.

In the prior art, there is only one data packet for each downlink transmission of the control plane signaling. After receiving the data packet of the control plane signaling sent by the macro base station, the UE starts the timer according to the DRX mechanism to continue to monitor the macro base station. PDCCH, this monitoring process wastes power. Compared with the prior art, in the embodiment of the present invention, the user equipment UE receives the discontinuous reception DRX parameter configured by the macro base station; configures a static timer according to the DRX parameter, and uses the static timer to monitor the physical downlink control channel PDCCH of the macro base station. After receiving the downlink resource allocation information sent by the macro base station through the PDCCH, the UE does not start the inactivity timer and directly enters the sleep state. The UE can enter the dormant state immediately after receiving the data packet of the downlink control plane signaling, and reduce the time for the UE to monitor the PDCCH of the macro base station, Save UE power. In addition, only when the macro base station and the UE have data transmission, the UE controls the PDCCH of the macro base station to be monitored by the UE, so that the UE can monitor only the PDCCH of the micro base station most of the time, thereby saving the UE power. Another embodiment of the present invention provides a user equipment 60. As shown in FIG. 6, the user equipment 60 includes:

The monitoring unit 61 is configured to monitor the physical downlink control channel PDCCH of the first base station by using a discontinuous reception DRX parameter configured by the first base station;

The power saving unit 62 is configured to enter a power saving state after receiving the downlink resource allocation information sent by the first base station through the PDCCH.

Further, as shown in FIG. 7, the power saving unit 62 may further include:

The first power saving unit 621 is configured to start a static timer Inactivity Timer after receiving the downlink resource allocation information, and enter a sleep state after the execution of the period of the Inactivity Timer; or

The second power saving unit 622 is configured to enter a sleep state after receiving the downlink resource allocation information.

Further, as shown in FIG. 7, the user equipment 60 may further include:

The receiving unit 63 is configured to receive, by the second base station, the interception indication information that is sent by the first base station, where the interception indication information is used to instruct the user equipment to monitor the PDCCH of the first base station.

Further, as shown in FIG. 7, the power saving unit 62 may further include:

The third power saving unit 623 is configured to start the static timer Inactivity Timer after receiving the downlink resource allocation information, and stop listening to the PDCCH of the first base station after the period of the Inactivity Timer is completed; or

The fourth power saving unit 624 is configured to stop listening to the PDCCH of the first base station after receiving the downlink resource allocation information.

The period of the period of the Inactivity Timer is 0. The interception indication information includes: a first interception indication information, where the first interception indication information is used to indicate that the UE immediately listens to the PDCCH of the second base station; or, the second interception indication information, the second The monitoring indication information is used to indicate that the UE is listening to the PDCCH of the second base station after the interval setting time; or the third monitoring indication information, where the third monitoring indication information is used to indicate that the UE turns to the monitoring The start time of the PDCCH of the second base station, the start time is represented by the system frame number SFN and the subframe subframe.

In the prior art, there is only one data packet for each downlink transmission of the control plane signaling, and the user equipment UE60 starts the monitoring of the macro base according to the DRX mechanism after receiving the data packet of the control plane signaling sent by the macro base station. The PDCCH of the station, this monitoring process wastes power. Compared with the prior art, in the embodiment of the present invention, the user equipment UE60 monitors the physical downlink control channel PDCCH of the first base station by using the discontinuous reception DRX parameter configured by the first base station; the UE 60 receives the first base station. After the downlink resource allocation information sent by the PDCCH, the power saving state is entered. The UE 60 can enter the power-saving state immediately after receiving the data packet of the downlink control plane signaling, and does not need to continue to monitor the PDCCH of the macro base station, thereby saving power for the UE 60. Another embodiment of the present invention provides a base station 70. As shown in FIG. 8, the base station 70 includes: a configuration unit 71, configured to configure, for a user equipment UE, discontinuous reception of DRX parameters, so that the UE uses the DRX. The parameter monitors the PDCCH of the base station 70, and after receiving the downlink resource allocation information sent by the base station 70 through the PDCCH, the UE enters a power saving state.

Further, as shown in FIG. 9, the base station 70 may further include:

The sending unit 72 is configured to send, to the second base station, the interception indication information, so that the second base station forwards the interception indication information to the UE, where the snoop indication information is used to indicate that the UE monitors the base station 70. PDCCH.

The monitoring indication information includes: first monitoring indication information, the first monitoring indication The information is used to indicate that the UE immediately listens to the PDCCH of the second base station; or the second interception indication information, where the second interception indication information is used to indicate that the UE listens to the second base station after the interval setting time a PDCCH; or a third interception indication information, where the third interception indication information is used to indicate a start time of the PDCCH that the UE turns to the second base station, where the start time passes the system frame number SFN and the subframe Said by subframe.

In the prior art, there is only one data packet for each downlink transmission of the control plane signaling. After receiving the data packet of the control plane signaling sent by the macro base station 70, the UE starts the timer according to the DRX mechanism to continue to monitor the macro base station. The PDCCH, this monitoring process wastes power. Compared with the prior art, in the embodiment of the present invention, the base station 70 configures a new set of DRX parameters for the UE, so that the UE configures the Inactivity Timer according to the parameter. After the UE receives the downlink resource allocation information sent by the base station 70, the UE does not start the Inactivity Timer to directly enter the power-saving state, or starts an Inactivity Timer with a short period of 4, which greatly shortens the time for continuing to monitor the PDCCH of the base station 70, and is the UE. Save energy. Another embodiment of the present invention provides a user equipment 80. As shown in FIG. 10, the user equipment 80 includes:

The processor 81 is configured to monitor, by using the discontinuous reception DRX parameter configured by the first base station, the physical downlink control channel PDCCH of the first base station, and the downlink resource allocation information that is sent by using the PDCCH by the first base station. After that, enter the power saving state.

The processor is specifically configured to: after receiving the downlink resource allocation information, start a static timer Inactivity Timer, and enter a sleep state after the period of the Inactivity Timer is completed; or, receive the downlink resource. After the information is assigned, it goes to sleep.

Further, as shown in FIG. 11, the user equipment 80 may further include:

The receiver 82 is configured to receive, by the second base station, the interception indication information that is sent by the first base station, where the interception indication information is used to indicate that the user equipment 80 listens to the PDCCH of the first base station. The processor is further configured to: after receiving the downlink resource allocation information, start a static timer Inactivity Timer, and stop listening to the PDCCH of the first base station after the period of the Inactivity Timer is completed; or Stop receiving the PDCCH of the first base station after receiving the downlink resource allocation information.

The period of the period of the Inactivity Timer is 0.

For the workflow of the user equipment 80 provided by the embodiment of the present invention, refer to the description of the foregoing method embodiments, which is not repeated here.

In the prior art, there is only one data packet for each downlink transmission of the control plane signaling, and the user equipment UE80 starts the monitoring of the macro base according to the DRX mechanism after receiving the data packet of the control plane signaling sent by the macro base station. The PDCCH of the station, this monitoring process wastes power. Compared with the prior art, in the embodiment of the present invention, the user equipment UE80 monitors the physical downlink control channel PDCCH of the first base station by using the discontinuous reception DRX parameter configured by the first base station; the UE 80 receives the first base station. After the downlink resource allocation information sent by the PDCCH, the power saving state is entered. The UE 80 can enter the power-saving state immediately after receiving the data packet of the downlink control plane signaling, and does not need to continue to monitor the PDCCH of the macro base station, thereby saving power for the UE 80. Another embodiment of the present invention provides a base station 90. As shown in FIG. 12, the base station 90 includes: a processor 91, configured to configure, for a user equipment UE, a discontinuous reception DRX parameter, so that the UE The PDCCH of the base station 90 is monitored by using the DRX parameter, and after receiving the downlink resource allocation information sent by the base station 90 through the PDCCH, the UE enters a power saving state.

Further, as shown in FIG. 13, the base station 90 may further include:

The transmitter 92 is configured to send the interception indication information to the second base station, so that the second base station forwards the interception indication information to the UE, where the interception indication information is used to indicate that the UE monitors the base station 90. PDCCH.

For the workflow of the base station 90 provided by the embodiment of the present invention, refer to the description of the foregoing method embodiment, which is not repeated here.

In the prior art, there is only one data packet for each downlink transmission of the control plane signaling. After receiving the data packet of the control plane signaling sent by the macro base station 90, the UE starts the timer according to the DRX mechanism to continue to monitor the macro base station. The PDCCH, this monitoring process wastes power. Compared with the prior art, in the embodiment of the present invention, the base station 90 configures a new set of DRX parameters for the UE, so that the UE configures the Inactivity Timer according to the parameter. After the UE receives the downlink resource allocation information sent by the base station 90, the UE does not start the Inactivity Timer to directly enter the power-saving state, or starts an Inactivity Timer with a short period of 4, which greatly shortens the time for continuing to monitor the PDCCH of the base station 90, and is the UE. Save energy.

The user equipment and the base station provided by the embodiments of the present invention may implement the foregoing method embodiments. For the specific function implementation, refer to the description in the method embodiment, and details are not described herein again. The power saving method, the user equipment, and the base station provided by the embodiment of the present invention may be applicable to the PDCCH information that the user equipment UE listens to the base station. Data transmission on the road, but not limited to this.

A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. In execution, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM). The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any change or replacement that can be easily conceived by those skilled in the art within the technical scope of the present invention is All should be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

claims

1. A power saving method, characterized by including:

The user equipment UE uses the discontinuous reception DRX parameters configured by the first base station to monitor the physical downlink control channel PDCCH of the first base station;

After receiving the downlink resource allocation information sent by the first base station through the PDCCH, the UE enters the power saving state.

2. The method according to claim 1, characterized in that, after the UE receives the downlink resource allocation information sent by the first base station through the PDCCH, entering the power saving state includes:

The UE starts the inactivity timer Inactivity Timer after receiving the downlink resource allocation information, and enters the sleep state after the cycle of the Inactivity Timer is completed; or,

After receiving the downlink resource allocation information, the UE enters a sleep state.

3. The method according to claim 1, characterized in that, before the UE uses the DRX parameters configured by the first base station to monitor the PDCCH of the first base station, the method further includes:

The UE receives the monitoring indication information sent by the first base station and forwarded by the second base station. The monitoring indication information is used to instruct the UE to monitor the PDCCH of the first base station.

4. The method according to claim 3, characterized in that, after the UE receives the downlink resource allocation information sent by the first base station through the PDCCH, entering the power saving state includes:

The UE starts the inactivity timer Inactivity Timer after receiving the downlink resource allocation information, and stops monitoring the PDCCH of the first base station after the period of the Inactivity Timer is completed; or,

The UE stops monitoring the PDCCH of the first base station after receiving the downlink resource allocation information.

5. The method according to claim 2 or 4, characterized in that the period length of the Inactivity Timer is 0.

6. The method according to claim 3, characterized in that, the monitoring indication information includes: first monitoring indication information, the first monitoring indication information is used to instruct the UE to immediately monitor the second base station. PDCCH of the station; or, second monitoring indication information, the second monitoring indication information is used to indicate the

The UE monitors the PDCCH of the second base station after the interval setting time; or, third monitoring indication information, the third monitoring indication information is used to instruct the UE to turn to the starting time of monitoring the PDCCH of the second base station. , the starting time is represented by the system frame number SFN and the subframe subframe.

7. The method according to claim 3 or 6, characterized in that the monitoring indication information is carried and sent in a radio resource control RRC message, a media access control MAC message, a physical layer message or a physical layer signal.

8. A power saving method, characterized by including:

The first base station configures the discontinuous reception DRX parameters for the user equipment UE, so that the UE uses the DRX parameters to monitor the PDCCH of the first base station, and after receiving the downlink resource allocation sent by the first base station through the PDCCH After receiving the information, the UE enters the power saving state.

9. The method according to claim 8, characterized in that, after the first base station configures discontinuous reception DRX parameters for the user equipment UE, the method further includes:

The first base station sends monitoring indication information to the second base station, so that the second base station forwards the monitoring indication information to the UE, and the monitoring indication information is used to instruct the UE to monitor the first base station. PDCCH.

10. The method according to claim 9, wherein the monitoring indication information includes: first monitoring indication information, the first monitoring indication information is used to instruct the UE to immediately monitor the PDCCH of the second base station ; Or, the second monitoring indication information, the second monitoring indication information is used to instruct the UE to monitor the PDCCH of the second base station after the interval setting time; or the third monitoring indication information, the third monitoring The indication information is used to instruct the UE to turn to the starting time of monitoring the PDCCH of the second base station, and the starting time is represented by the system frame number SFN and the subframe subframe.

11. The method according to claim 9 or 10, characterized in that the monitoring instruction information is carried in a radio resource control RRC message, a media access control MAC message, a physical layer message or a physical layer signal and sent.

12. A user equipment, characterized by: including:

A monitoring unit configured to monitor the physical downlink control channel PDCCH of the first base station using the discontinuous reception DRX parameters configured by the first base station;

The power saving unit is configured to enter the power saving state after receiving the downlink resource allocation information sent by the first base station through the PDCCH.

13. The user equipment according to claim 12, wherein the power saving unit includes: a first power saving unit configured to start a quiescence timer after receiving the downlink resource allocation information.

The Inactivity Timer enters the sleep state after the cycle of the Inactivity Timer is completed; or the second power saving unit is configured to enter the sleep state after receiving the downlink resource allocation information.

14. The user equipment according to claim 12, characterized in that, the user equipment further includes: a receiving unit, configured to receive the interception instruction information forwarded by the second base station and sent by the first base station, the interception instruction The information is used to instruct the user equipment to monitor the PDCCH of the first base station.

15. The user equipment according to claim 14, wherein the power saving unit further includes: a third power saving unit configured to start a quiescence timer after receiving the downlink resource allocation information.

Inactivity Timer, stop monitoring the PDCCH of the first base station after the cycle of the Inactivity Timer is completed; or,

The fourth power saving unit is configured to stop monitoring the PDCCH of the first base station after receiving the downlink resource allocation information.

16. The user equipment according to claim 13 or 15, characterized in that the period of the Inactivity Timer is 0.

17. A base station, characterized by including:

A configuration unit configured to configure discontinuous reception DRX parameters for the user equipment UE, so that the UE uses the DRX parameters to monitor the PDCCH of the base station, after receiving the downlink resource allocation information sent by the base station through the PDCCH. , the UE enters the power saving state.

18. The base station according to claim 17, characterized in that, the base station further includes: a sending unit, configured to send interception instruction information to a second base station, so that the second base station forwards the interception to the UE. Instruction information, the monitoring indication information is used to instruct the UE to monitor the PDCCH of the base station.

19. A user equipment, characterized by: including:

A processor, configured to monitor the physical downlink control channel PDCCH of the first base station using the discontinuous reception DRX parameters configured by the first base station; and, after receiving the downlink resource allocation information sent by the first base station through the PDCCH , enter the power saving state.

20. The user equipment according to claim 19, wherein the processor is specifically configured to: start an inactivity timer after receiving the downlink resource allocation information, and in the

After the Inactivity Timer cycle is completed, it enters the sleep state; or,

After receiving the downlink resource allocation information, it enters the sleep state.

21. The user equipment according to claim 19, characterized in that, the user equipment further includes: a receiver, configured to receive the interception instruction information forwarded by the second base station and sent by the first base station, the interception instruction The information is used to instruct the user equipment to monitor the PDCCH of the first base station.

22. The user equipment according to claim 21, characterized in that the processor is further used for:

After receiving the downlink resource allocation information, start the inactivity timer Inactivity Timer, and stop monitoring the PDCCH of the first base station after the period of the Inactivity Timer is completed; or,

Stop monitoring the PDCCH of the first base station after receiving the downlink resource allocation information.

23. The user equipment according to claim 20 or 22, characterized in that the period of the Inactivity Timer is 0.

24. A base station, characterized by including:

A processor configured to configure discontinuous reception DRX parameters for the user equipment UE, so that the UE uses The DRX parameters monitor the PDCCH of the base station. After receiving the downlink resource allocation information sent by the base station through the PDCCH, the UE enters the power saving state.

25. The base station according to claim 24, characterized in that, the base station further includes: a transmitter, configured to send monitoring instruction information to the second base station, so that the second base station sends monitoring instructions to the second base station.

The UE forwards the monitoring indication information, which is used to instruct the UE to monitor the base station.

PDCCH.