CN104995945B

CN104995945B - Transfer control method, node device and user equipment

Info

Publication number: CN104995945B
Application number: CN201480000458.5A
Authority: CN
Inventors: 蔺波; 张亮亮
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-01-03
Filing date: 2014-01-03
Publication date: 2019-09-03
Anticipated expiration: 2034-01-03
Also published as: CN104995945A; WO2015100735A1

Abstract

The present invention relates to a kind of transfer control method, node device and user equipmenies, wherein, the transfer control method includes: first node to user equipment transmission first message, and the first message is used to indicate the user equipment and receives the user-specific information that second node repeats the physical channel sent carrying.By judging downlink signal quality, determination separates the uplink and downlink of UE, and realizing cooperation between base station is that UE is serviced, and receives descending control signaling well, shortens the time delay that interactive information generates between base station.

Description

Transmission control method, node equipment and user equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a transmission control method, a node device, and a user equipment.

Background

With the development of mobile internet, the demand of terminal users for bandwidth is higher and higher, and in order to improve the throughput and coverage of a network, a plurality of small-scale sites, that is, Low Power sites (hereinafter, abbreviated as LPNs), may be introduced at a cell covered by a macro base station or at a cell edge to form a small-scale cell, that is, a Low Power cell. The low-power stations may be placed in hot spot areas of a service or in void areas covered by macro base stations, so as to form a heterogeneous Network (HetNet). Therefore, when User Equipment (UE) moves to the areas, the service of the UE can be switched to the small cells, the service is shunted or coverage holes are made up, and the purposes of improving system capacity, improving User throughput and improving coverage are achieved. These small sites may be small base stations, micro base stations, home base stations, relay stations, etc.

In a heterogeneous network, a UE located in a range of a challenge area (challenge area) may well receive a DownLink signal transmitted by a macro base station, but may not well receive a DownLink (DL) signal transmitted from a small cell base station (Pico). In the range of challenge area, the macro base station receives the uplink signal sent by the UE with the quality worse than that the Pico receives the uplink signal sent by the UE. Therefore, the UE can send uplink (uplink for short: UL) data or uplink signaling to the Pico, and the effects of saving electricity, improving uplink throughput and the like can be achieved. However, the transmission of uplink data or uplink signaling requires scheduling of downlink control signaling. Specifically, the downlink control signaling includes uplink scheduling information for the UE, for example, indicating on which time-frequency resource the UE transmits uplink data or uplink signaling, and which data or signaling is transmitted. If the UE cannot receive the DL control signaling from Pico to the UE well, it cannot send uplink data or uplink signaling well, for example, the UE cannot determine which uplink signaling or uplink data is sent on which time-frequency resource. Therefore, how to well receive the scheduling signaling of the Pico to the UE and how to let the UE in the range of the challenge area receive the service of the Pico (for example, the UE is changed from uplink and downlink by Macro base station Macro service to uplink by Pico service of the UE) is a problem to be solved.

In the prior art, a macro base station may send a downlink control signaling to a UE, where the downlink control signaling includes uplink scheduling information of the UE by a low power base station. And the UE sends uplink signaling or uplink data to the low-power base station according to the uplink scheduling information. However, in this method, before the UE sends uplink signaling or uplink data to the low power base station each time, the macro base station needs to obtain uplink scheduling information from the low power base station to the UE by exchanging information with the low power base station, which increases the load of an interface between two sites, such as an X2 interface. In addition, since the interaction loop thread (backhaul) has a delay of several tens of milliseconds (e.g., 20ms), the more times the two stations interact, the longer the delay of scheduling across the base station.

In summary, since the location of the UE is at the edge of the signal coverage, the data decoding success rate of the UE may be low.

Disclosure of Invention

Technical problem

In view of the above, the technical problem to be solved by the present invention is how to improve the data decoding success rate of the user equipment.

Solution scheme

In order to solve the above technical problem, in a first aspect, the present invention provides a transmission control method, including: the first node sends a first message to the user equipment, wherein the first message is used for indicating the user equipment to receive user-specific information carried by a physical channel repeatedly sent by the second node.

With reference to the first aspect, in a first possible implementation manner of the first aspect, before the sending, by the first node, the first message to the user equipment, the method includes:

the first node sends a second message to the user equipment, wherein the second message is used for instructing the user equipment to measure the second node;

the first node receives a measurement report returned by the user equipment;

the first node determines whether to instruct the user equipment to receive the user-specific information repeatedly sent by the second node according to the measurement report.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the sending, by the first node, a first message to the user equipment includes:

the first node sends the first message to the user equipment if it is determined from the measurement report that the user equipment is instructed to receive the user-specific information that the second node repeatedly sends.

With reference to the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, after the determining, according to the measurement report, whether to instruct the ue to receive the user-specific information repeatedly sent by the second node, the method further includes:

the first node determines whether to instruct uplink transmission of the user equipment to be switched into the second node, whether to perform uplink and downlink separate transmission or whether to perform device-to-device D2D communication with the second node according to the measurement report;

the first node sends a first message to the user equipment, and the method further comprises the following steps:

and if the uplink transmission of the user equipment is switched into the second node according to the measurement report, the user equipment is determined to carry out uplink and downlink separated transmission, or the user equipment is determined to be in D2D communication with the second node, the first node sends the first message to the user equipment.

With reference to the first aspect and any one possible implementation manner of the first to third possible implementation manners of the first aspect, in a fourth possible implementation manner of the first aspect, the first message is further used to instruct the ue to receive a service of the second node, or instruct uplink transmission of the ue to be switched to the second node, or instruct the ue to perform uplink and downlink separate transmission, or instruct the ue to perform D2D communication with the second node.

With reference to any one possible implementation manner of the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the instructing, by the second message, the user equipment to measure the second node specifically includes: the second message is used for instructing the user equipment to measure the repeated receiving type of the second node.

With reference to any one possible implementation manner of the first to fifth possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, before the sending, by the first node, the first message or the second message to the user equipment, the method includes:

the first node receives a configuration message of the second node, wherein the configuration message comprises a second node identifier and/or a repeated sending parameter;

wherein the repeated transmission parameters include any one or more of the following parameters: the number of repeated transmissions, the starting subframe, the transmission period and the second node measurement configuration.

With reference to any one possible implementation manner of the first to sixth possible implementation manners of the first aspect, in a seventh possible implementation manner of the first aspect, the second message includes: any one or more of the second node identification, the repeated reception type measurement indication and the repeated transmission parameter;

wherein the repeated transmission parameters include any one or more of the following parameters: the number of repeated transmissions, the starting subframe, the transmission period, and the second node measurement configuration.

With reference to the first aspect and any one possible implementation manner of the first to the seventh possible implementation manners of the first aspect, in an eighth possible implementation manner of the first aspect, the method further includes:

and the first node sends a third message to the second node, wherein the third message comprises a user identifier, and the third message is used for indicating the second node to repeatedly send the user-specific information to the user equipment corresponding to the user identifier.

With reference to the first aspect and any one possible implementation manner of the first to eighth possible implementation manners of the first aspect, in a ninth possible implementation manner of the first aspect, the first message includes: any one or more of the second node identification, repeated receiving indication and repeated sending parameters;

With reference to the fifth possible implementation manner of the first aspect, in a tenth possible implementation manner of the first aspect, the repeatedly receiving type measurement includes:

and the user equipment receives the reference signal repeatedly sent by the second node, measures the reference signal, accumulates results for multiple times, and feeds the result back to the first node.

In a second aspect, the present invention provides a transmission control method, including: the method comprises the steps that user equipment receives a first message sent by a first node, wherein the first message is used for indicating the user equipment to receive user special information carried by a physical channel repeatedly sent by a second node.

With reference to the second aspect, in a first possible implementation manner of the second aspect, before the receiving, by the user equipment, the first message sent by the first node, the method includes:

the user equipment receives a second message sent by the first node, wherein the second message is used for instructing the user equipment to measure the second node;

the user equipment measures the second node according to the second message;

the user equipment sends a measurement report to the first node and/or the second node.

With reference to the second aspect and the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the first message is further used to instruct the ue to receive a service of the second node, or instruct uplink transmission to be switched to the second node, or instruct the ue to perform uplink and downlink separate transmission, or instruct the ue to perform D2D communication with the second node.

With reference to the second aspect and any one possible implementation manner of the first and second possible implementation manners of the second aspect, in a third possible implementation manner of the second aspect, the instructing, by the second message, the user equipment to measure the second node specifically includes: the second message is used for instructing the user equipment to measure the repeated receiving type of the second node.

With reference to any one possible implementation manner of the first to third possible implementation manners of the second aspect, in a fourth possible implementation manner of the second aspect, the second message includes: any one or more of the second node identification, the repeated receiving type measurement indication and the repeated sending parameter;

In a third aspect, the present invention provides a node apparatus comprising:

a sending module, configured to send a first message to a user equipment, where the first message is used to instruct the user equipment to receive user-specific information carried by a physical channel repeatedly sent by a second node.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the sending module is further configured to send a second message to the user equipment, where the second message is used to instruct the user equipment to measure a second node;

the node device further includes:

the receiving module is connected with the sending module and used for receiving the measurement report returned by the user equipment;

a determining module, connected to the receiving module, configured to determine whether to instruct the ue to receive the user-specific information repeatedly sent by the second node.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the sending module is further configured to send the first message to the user equipment if it is determined, according to the measurement report, to instruct the user equipment to receive the user-specific information repeatedly sent by the second node.

With reference to the first possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the determining module is further configured to determine, according to the measurement report, whether to instruct uplink transmission of the user equipment to be switched into the second node, determine whether the user equipment performs uplink and downlink separated transmission, or determine whether the user equipment performs D2D communication with the second node;

the sending module is further configured to send the first message to the user equipment if it is determined from the measurement report that uplink transmission of the user equipment is instructed to be switched into the second node, that the user equipment performs uplink and downlink separated transmission, or that the user equipment performs D2D communication with the second node.

With reference to the third aspect and any one possible implementation manner of the first to third possible implementation manners of the third aspect, in a fourth possible implementation manner of the third aspect, the first message is further used to instruct the user equipment to receive a service of the second node, or instruct uplink transmission of the user equipment to be switched to the second node, or instruct the user equipment to perform uplink and downlink separate transmission, or instruct the user equipment to perform D2D communication with the second node.

With reference to any one possible implementation manner of the first to fourth possible implementation manners of the third aspect, in a fifth possible implementation manner of the third aspect, the instructing, by the second message, the user equipment to measure the second node includes:

the second message is used for instructing the user equipment to measure the repeated receiving type of the second node.

With reference to any one possible implementation manner of the first to fifth possible implementation manners of the third aspect, in a sixth possible implementation manner of the third aspect, the receiving module is further configured to receive a configuration message sent by the second node, where the configuration message includes a second node identifier and/or a repeated sending parameter;

With reference to any one possible implementation manner of the first to sixth possible implementation manners of the third aspect, in a seventh possible implementation manner of the third aspect, the second message includes: any one or more of the second node identification, the repeated reception type measurement indication and the repeated transmission parameter;

With reference to the third aspect and any one possible implementation manner of the first to seventh possible implementation manners of the third aspect, in an eighth possible implementation manner of the third aspect, the sending module is further configured to send a third message to the second node, where the third message includes a user identifier, and the third message is used to instruct the second node to repeatedly send the user-specific information to the user equipment corresponding to the user identifier.

With reference to the third aspect and any possible implementation manner of the first to eighth possible implementation manners of the third aspect, in a ninth possible implementation manner of the third aspect, the first message includes: any one or more of the second node identification, repeated receiving indication and repeated sending parameters;

With reference to the fifth possible implementation manner of the third aspect, in a tenth possible implementation manner of the third aspect, the repeatedly receiving type measurement includes:

In a fourth aspect, the present invention provides a user equipment, comprising:

a receiving module, configured to receive a first message sent by a first node, where the first message is used to instruct the ue to receive user-specific information carried by a physical channel repeatedly sent by a second node.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the receiving module is further configured to receive a second message sent by the first node, where the second message is used to instruct the ue to perform measurement on the second node;

the user equipment further comprises:

the measuring module is connected with the receiving module and used for measuring the second node according to the second message;

a sending module, connected to the measurement module, configured to send a measurement report to the first node and/or the second node.

With reference to the fourth aspect and the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the first message is further used to instruct the ue to receive a service of the second node, or instruct uplink transmission to be switched to the second node, or instruct the ue to perform uplink and downlink separate transmission, or instruct the ue to perform D2D communication with the second node.

With reference to the fourth aspect and any one possible implementation manner of the first and second possible implementation manners of the fourth aspect, in a third possible implementation manner of the fourth aspect, the instructing, by the user equipment, the second message to measure the second node includes:

With reference to the fourth aspect and any possible implementation manner of the first to third possible implementation manners of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the second message includes: any one or more of the second node identification, the repeated receiving type measurement indication and the repeated sending parameter;

Advantageous effects

The quality of the downlink signal is judged, the uplink and the downlink of the UE are determined to be separated, the cooperation of the base stations as UE service is realized, downlink control signaling is well received, and the time delay generated by interactive information between the base stations is shortened.

Other features and aspects of the present invention will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the invention and, together with the description, serve to explain the principles of the invention.

Fig. 1 shows a flow chart of a transmission control method according to an embodiment of the invention;

fig. 2 shows a flow chart of a transmission control method according to another embodiment of the present invention;

fig. 3 shows a flow chart of a transmission control method according to another embodiment of the present invention;

fig. 4 shows a flow chart of a transmission control method according to another embodiment of the present invention;

fig. 5 shows a flowchart of a transmission control method according to another embodiment of the present invention;

fig. 6 shows a flowchart of a transmission control method according to another embodiment of the present invention;

fig. 7 shows a flowchart of a transmission control method according to another embodiment of the present invention;

FIG. 8 is a block diagram of a node device according to an embodiment of the present invention;

fig. 9 is a block diagram showing a structure of a node apparatus according to another embodiment of the present invention;

fig. 10 is a block diagram showing a structure of a node apparatus according to another embodiment of the present invention;

fig. 11 illustrates a block diagram of a user equipment according to an embodiment of the present invention;

fig. 12 is a block diagram showing a configuration of a transmission control apparatus according to an embodiment of the present invention.

Detailed Description

Various exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In other instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present invention.

In a heterogeneous network, a UE located in a range of a challenge area (challenge area) may receive a DownLink signal transmitted by a macro base station well, but may not receive a DownLink (DL) signal transmitted from a small cell base station (Pco) well. In the range of challenge area, the macro base station receives the uplink signal sent by the UE with the quality worse than that the Pico receives the uplink signal sent by the UE. Therefore, the UE can send uplink (uplink for short: UL) data or uplink signaling to the Pico, and the effects of saving electricity, improving uplink throughput and the like can be achieved. However, the transmission of uplink data or uplink signaling requires scheduling of downlink control signaling. Specifically, the downlink control signaling includes uplink scheduling information for the UE, for example, indicating on which time-frequency resource the UE transmits uplink data or uplink signaling, and which data or signaling is transmitted. If the UE cannot receive the DL control signaling from Pico to the UE well, it cannot send uplink data or uplink signaling well, for example, the UE cannot determine which uplink signaling or uplink data is sent on which time-frequency resource. Therefore, how to well receive the scheduling signaling of the Pico to the UE and how to let the UE in the range of the challenge area receive the service of the Pico (for example, the UE is changed from uplink and downlink by Macro base station Macro service to uplink by Pico service of the UE) is a problem to be solved.

Fig. 1 shows a flowchart of a transmission control method according to an embodiment of the present invention. As shown in fig. 1, the transmission control method mainly includes:

step 100, a first node sends a first message to a user equipment, where the first message is used to instruct the user equipment to receive user-specific (UE-specific) information carried by a physical channel and repeatedly sent by a second node.

For example, in a heterogeneous network, when a UE is located in a challenging area, i.e., at the edge of the coverage area of a base station, the UE is far away from the base station, and cannot receive signaling and/or data transmitted by the base station well. In this case, the base station may repeatedly transmit the same content to the UE in consecutive subframes in a repeated transmission manner, so as to improve the coverage capability of the base station, so that the UE in the challenging area may receive the signaling and/or data transmitted by the base station. In a heterogeneous network, the first node may be a Macro base station (e.g., Macro), the second node may be a low power base station (e.g., Pico), and the Pico may be located at the edge of a cell covered by Macro, and a cell under the Pico coverage may be referred to as a small cell. The first node may send a first message to a UE in the contention region instructing the UE to receive user-specific (UE-specific) information carried by a physical channel repeatedly sent by the second node.

As another example, in a scenario of Device-to-Device (D2D) communication where the second node is another UE, if the local UE needs to communicate with the second node, the first node may send a first message to the local UE instructing the local UE to receive user-specific information carried by a physical channel repeatedly sent by the second node.

In one possible implementation, the second node may repeatedly send user-specific information carried by the physical channel, such as control signaling for scheduling the UE, an Acknowledgement (ACK) message or a non-acknowledgement (NACK) message for feedback to the UE, information for data sent to the UE, and so on. Specifically, the physical channel carrying the information repeatedly transmitted by the second node may include at least one or more of the following physical channels: a Physical Downlink Control Channel (PDCCH), a Physical Hybrid-ARQ Indicator Channel (PHICH), and a Physical Downlink Shared Channel (PDSCH).

Specifically, the user-specific information carried by the physical channel repeatedly sent by the second node may be the same, and the user-specific information carried by the physical channel may be control signaling or data. The control signaling may be PDCCH or PHICH, and the data may be PDSCH. The PDCCH may include uplink scheduling information of the second node for the UE, where the uplink scheduling information may be used to instruct the UE to send uplink signaling and/or uplink data to the second node. For example, the information repeatedly transmitted by the second node may be user equipment specific information (UE specific information) carried by a repeatedly transmitted physical channel. The user equipment specific information carried by the physical channel may be user equipment specific information carried by the second node on the PDCCH and/or PHICH and/or PDSCH, that is, specific information sent by the second node to the user equipment on the PDCCH and/or PHICH and/or PDSCH.

The PHICH may be used to transmit a Hybrid Automatic Repeat Request (HARQ) ACK or NACK. For example, node 1 (e.g., UE) transmits data on PDSCH to node 2 (e.g., eNB), and node 2 (e.g., eNB) transmits ACK if the data is correctly received and feeds back NACK if the received data is incorrect. Whereby node 1 (e.g., UE) may retransmit the data to node 2 (e.g., eNB) upon receiving the NACK.

In one possible implementation manner, the first message may include: any one or more of the second node identification, repeated receiving indication and repeated sending parameters; wherein the repeated transmission parameters include any one or more of the following parameters: the number of repeated transmissions, the starting subframe, the transmission period and the second node measurement configuration. Specifically, the second node identifier may be a site identifier (e.g., eNB ID) of the second node, or may be an identifier of a cell of the second node, for example, a cell ID, a Physical Cell Identity (PCI), an E-UTRAN cell global identifier (ECGI), and the like. Furthermore, the second node may be another UE in the D2D scenario, and the second node identity may also be an identity of the user equipment.

Further, one or more of the following parameters may be included in the first message: a duplicate reception indication, which may be used to instruct the UE to repeatedly receive the user-specific information repeatedly transmitted by the second node; and repeating the transmission parameter, wherein the repeating transmission parameter can provide corresponding parameters for the second node, so that the second node determines the number of the subframes for repeating the transmission of the information, the starting subframe, the transmission period and the like. Specifically, the repeated transmission parameters may include the number of repeated transmissions, a starting subframe, and a transmission period. The repeated transmission times are times of repeatedly transmitting the same content, namely the number of subframes for repeatedly transmitting the control signaling, the number of subframes for repeatedly transmitting the same content or the number of subframes for repeatedly transmitting the same content, or N repeated subframes for transmitting the same content; the starting sub-frame indicates that the same content is transmitted from the Kth sub-frame or the same content is transmitted from the K sub-frame of the S-th frame; the transmission cycle means a cycle in which the same content is repeatedly transmitted, such as 8ms repeated once.

The above parameter configuration may be applied to all embodiments of the present invention, and the description of the subsequent embodiments is not repeated.

In a possible implementation manner, the first message may be used to instruct the UE to receive user-specific information carried by a physical channel repeatedly sent by the second node, and may also be:

the first message is used for instructing the user equipment to receive user-specific information carried by a physical channel repeatedly sent by a second node and instructing to switch uplink transmission of the user equipment to the second node; or, the first message is used to instruct the UE to receive user-specific information carried by a physical channel repeatedly sent by a second node, and instruct the UE to perform uplink and downlink separate transmission (for example, UE uplink communicates with the second node, and downlink communicates with the first node); or, the first message is used to instruct the ue to receive user-specific information carried by a physical channel repeatedly sent by a second node, and instruct that part or all of uplink and downlink of the ue are served by the second node; or, the first message is used to instruct the user equipment to receive user-specific information carried by a physical channel repeatedly sent by the second node, and instruct the user equipment to perform D2D communication with the second node.

Therefore, optionally, the first message may further include an explicit indication information, which is used to indicate to switch uplink transmission of the user equipment to the second node, or indicate to perform uplink and downlink separate transmission on the user equipment UE (for example, the UE uplink is communicated with the second node, and the downlink is communicated with the first node), or indicate that the uplink and downlink of part or all of services of the user equipment are served by the second node, or indicate to perform D2D communication between the user equipment and the second node. Of course, the first message does not include the indication information, and may be implemented in an implicit manner.

Fig. 2 shows a flowchart of a transmission control method according to another embodiment of the present invention. The steps in fig. 2, which are numbered the same as those in fig. 1, have the same functions, and detailed descriptions of the steps are omitted for the sake of brevity.

As shown in fig. 2, the transmission control method shown in fig. 2 is mainly different from the transmission control method shown in fig. 1 in that, before step 100, the transmission control method may further include:

step 200, the first node sends a second message to the user equipment, where the second message is used to instruct the user equipment to measure the second node.

Specifically, before the first node sends the first message to the UE, the first node may first determine whether to instruct the UE to receive the information repeatedly sent by the second node. In the judging process, the first node firstly sends a second message to the UE to indicate the UE to measure the second node. Wherein the measurement may be a repeated reception type measurement.

In one possible implementation manner, the second message includes: any one or more of the second node identification, the repeated receiving type measurement indication and the repeated sending parameter; wherein the repeated transmission parameters include any one or more of the following parameters: the number of repeated transmissions, the starting subframe, the transmission period and the second node measurement configuration. The measurement of the duplicate reception type includes: the user equipment receives a reference signal repeatedly sent by a second node, measures the reference signal, accumulates multiple measurement results (for example, K is a natural number greater than 0), and feeds back the accumulated measurement results to the first node. The Reference Signal may be, for example, a Cell Reference Signal (CRS), or a Channel-State Information-Reference Signal (CSI-RS).

Specifically, K (K is a natural number greater than 0) may be the number of times corresponding to the number of repeated transmissions, or may be network configuration (for example, a parameter configured by OAM), and K may be the same as or different from the number of repeated transmissions. The parameter K may also be included in the first message or the second message sent to the UE.

The parameter K may be included in the configuration message received by the first node from the second node.

For example, the UE may perform repeated reception type measurements on a cell corresponding to the identity of the second node. The process of the UE performing the repeated reception type measurement at a time may include: and the UE receives the reference signal repeatedly sent by the second node. If the number of subframes for repeatedly transmitting the same content included in the second message is N, the UE may weight the measurement results of the reference signals of the N subframes transmitted by the second node, and use the obtained weighting result as the measurement result of one subframe. And then, accumulating the K times of measurement results, and feeding back the accumulated measurement results to the first node. This makes it possible to make both the measurement method and the channel demodulation method a method using repeated reception.

Step 201, the first node receives a measurement report returned by the user equipment;

step 202, according to the measurement report, determining whether to instruct the user equipment to receive the user-specific information repeatedly sent by the second node.

Specifically, after the UE performs the repeated reception type measurement on the second node according to the indication of the second message and the parameter included in the second message, the UE may obtain a corresponding measurement result, and form a measurement report according to the measurement result, and send the measurement report to the first node. After the first node receives the measurement report, the first node may determine, according to the measurement report, the signal quality of the information received by the UE on the link with the second node, so as to determine whether to instruct the UE to receive the information repeatedly transmitted by the second node.

In a possible implementation manner, after step 202, step 100 may specifically include the following cases:

in case one, if it is determined according to the measurement report that the user equipment is instructed to receive the user-specific information repeatedly transmitted by the second node, the first node transmits the first message to the user equipment.

Specifically, the UE measures a signal sent by the second node, and if the signal quality received by the UE from the second node meets a certain requirement, for example, the signal quality meets a threshold, the first node may determine to instruct the UE to receive information repeatedly sent by the second node, and send the first message to the UE. For example, the UE performs RRM measurement on the second node, specifically, the UE performs measurement on a reference signal (for example, a CRS reference signal) transmitted by the second node, and feeds back one or more of the following parameters to the first node: RSRP (reference Signal Receive Power), RSRQ (reference Signal received Quality), RSSI (received Signal sequence indicator), PMI (precoding matrix indicators), CQI (channel Quality indicator), RI (rank indicator), and the like.

And on the basis of the first condition, if the user equipment is instructed to receive the user-specific information repeatedly sent by the second node according to the measurement report, whether the uplink transmission of the user equipment is instructed to be switched into the second node, whether the user equipment performs uplink and downlink separated transmission or whether the user equipment performs D2D communication with the second node can be determined according to the measurement report.

Then, step 100 may further include: and if the uplink transmission of the user equipment is determined to be switched into the second node according to the measurement report, the user equipment is determined to perform uplink and downlink separated transmission, or the user equipment is determined to perform D2D communication with the second node, the first node sends a first message to the user equipment.

Specifically, in a scenario of a heterogeneous network, after the first node receives the measurement report, it may also determine to instruct to switch uplink transmission of the UE to the second node according to the measurement report (that is, the UE sends an uplink signal to the second node, and the second node receives a control signaling and/or data of the UE to provide an uplink service for the UE); or determining whether the UE carries out uplink and downlink separated transmission according to the measurement report, namely switching the uplink and downlink of the UE from being served by the first node to the uplink of the UE to be served by the second node and the downlink of the UE to be served by the first node. If the first node determines that the UE receives the signal sent by the second node according to the measurement report, the signal quality is good, and it may be determined that uplink transmission of the UE is switched to the second node, or it is determined that the UE performs uplink and downlink separated transmission. The first node may determine that all uplink and downlink of the UE are exchanged to the second node, that is, the uplink and downlink of the UE are served by the second node; when the UE has multiple types of services, the first node may also determine to switch uplink of part or all of the services (e.g., part or all of the bearer) of the UE into the second node, that is, the uplink of part or all of the services of the UE is served by the second node, and the downlink is served by the first node; in addition, the first node may also determine to switch all uplink and downlink of part or all of the services of the UE to the second node, that is, the uplink and downlink of part or all of the services of the UE are served by the second node.

Furthermore, in the scenario of D2D communication, the first node may be a certain UE, the second node may be another UE, and the first node may determine whether to communicate with the second node in D2D according to the measurement report.

Therefore, for the second case, the first message sent by the first node to the UE may also be used to instruct the UE to receive the service of the second node, or instruct to switch the uplink transmission of the UE to the second node, or instruct the UE to perform uplink and downlink separated transmission, or instruct the UE to perform D2D communication with the second node.

Fig. 3 shows a flowchart of a transmission control method according to another embodiment of the present invention. The steps in fig. 3, which are numbered the same as in fig. 1 and 2, have the same functions, and detailed descriptions of the steps are omitted for the sake of brevity.

As shown in fig. 3, the transmission control method shown in fig. 3 is mainly different from the transmission control methods shown in fig. 1 and fig. 2 in that, before step 100 or step 200, the transmission control method may further include:

step 300, the first node receives a configuration message of the second node, where the configuration message includes the second node identifier and/or the repeated sending parameter; wherein the repeated transmission parameters include any one or more of the following parameters: the number of repeated transmissions, the starting subframe, the transmission period and the second node measurement configuration.

The identifier of the second node may be used for determining, by the subsequent UE, which cell is to be measured in the repeated reception type, and the repeated transmission parameter may be used for measuring, by the UE, the repeated reception type of the cell corresponding to the identifier of the second node. For specific examples of the measurement of the repeated reception type and the repeated transmission parameter, reference may be made to the related description of the transmission control method in the foregoing embodiment of the present invention, and details are not described herein again.

Further, the transmission control method may further include:

step 301, the first node sends a third message to the second node, where the third message is used to instruct the second node to repeatedly send the user-specific information to the user equipment. Specifically, the third message may include a user identifier, so as to instruct the second node to repeatedly send the user-specific information to the user equipment corresponding to the user identifier.

Wherein the information repeatedly sent by the second node is: the second node may repeatedly send user-specific information carried by the physical channel, such as control signaling for scheduling the UE, ACK/NACK for feedback to the UE, data for sending to the UE, and so on. The physical channel carrying the information repeatedly transmitted by the second node may include at least one or more of: a Physical Downlink Control Channel (PDCCH), a Physical hybrid-ARQ Indicator Channel (PHICH), and a Physical Downlink Shared Channel (PDSCH).

Specifically, the user-specific information carried by the physical channel repeatedly sent by the second node is the same, and the user-specific information carried by the physical channel may be control signaling or data. For example, the control signaling may be a PDCCH or a PHICH (Physical Hybrid-ARQ Indicator Channel), and the data may be a PDSCH. Uplink scheduling information of the second node to the UE may be included in the PDCCH, and the uplink scheduling information may be used to instruct the UE to transmit uplink signaling and/or data to the second node. For example, the information repeatedly sent by the second node may be UE specific information (UE specific information) repeatedly sent on the physical channel bearer. The ue specific information (UEspecific information) carried by the physical channel may be ue specific information carried by the second node on the PDCCH and/or PHICH and/or PDSCH, that is, the ue specific information sent by the second node on the PDCCH and/or PHICH and/or PDSCH to the ue.

The PHICH is used to transmit HARQ ACK/NACK. Specifically, node 1 (e.g., UE) transmits data to node 2 (e.g., eNB) on the PUSCH, and node 2 (e.g., eNB) transmits ACK if the data is correctly received and feeds back NACK if the received data is incorrect. Whereby node 1 (e.g., UE) may retransmit the data to node 2 (e.g., eNB) upon receiving the NACK.

Specifically, step 301 and step 100 may be executed simultaneously, or one step may precede another step, and the timing relationship between the two steps is not limited in the embodiment of the present invention. For example, after step 301 is executed, the first node receives a reply acknowledgement message sent by the second node, so that the first node executes step 100 to send the first message to the UE. The third message may include a user identity, for example, an identity of the UE, which may indicate to which UE the second node repeatedly transmits the information.

In the transmission control method of this embodiment, the first node sends the first message to the ue, which may instruct the ue to receive the user-specific information carried by the physical channel and repeatedly sent by the second node, so that the probability of successful data decoding of the ue can be improved, and the downlink coverage of the second node can be improved. Specifically, the second node sends information to the UE, for example, the second node sends a data packet to the UE, the data packet is repeatedly transmitted on a plurality of consecutive TTI resources, and the UE combines data on the plurality of TTI resources to achieve the purpose of improving transmission quality. Therefore, the successful probability of the UE data decoding can be improved, and the downlink coverage range of the second node is improved. Here, each TTI is 1ms, i.e., 1 subframe.

For example, in a scenario of a heterogeneous network, by measuring the signal quality of a signal sent by a second node and received by a UE in a contention area, the UE may be instructed to receive user-specific information carried by a physical channel repeatedly sent by the second node, and may determine whether to instruct to switch uplink transmission of the UE to the second node and perform uplink and downlink separate transmission, and the UE sends uplink data to the second node through information, such as an uplink scheduling signaling, so as to achieve the effects of improving the probability of successful decoding of the UE data, improving the downlink coverage of the second node, improving the uplink throughput, and the like.

Fig. 4 shows a flowchart of a transmission control method according to another embodiment of the present invention. As shown in fig. 4, the transmission control method mainly includes:

step 110, the user equipment receives a first message sent by a first node, where the first message is used to instruct the user equipment to receive user-specific information carried by a physical channel repeatedly sent by a second node.

Specifically, in the heterogeneous network, the first node may be a Macro base station (e.g., Macro), the second node may be a low power base station (e.g., Pico), the Pico may be located at the edge of a cell covered by the Macro, and a cell under the Pico coverage may be referred to as a small cell. The UE in the contention region may receive a first message sent by the first node, instructing the UE to receive user-specific information carried by a physical channel repeatedly sent by the second node.

For specific content of the user-specific information carried by the physical channel and repeatedly sent by the second node, reference may be made to the related description in the foregoing transmission control method embodiment, and details are not described here again.

In a possible implementation manner, before step 110, the method may further include:

step 210, the user equipment receives a second message sent by the first node, where the second message is used to instruct the user equipment to measure a second node;

step 220, the user equipment measures the second node according to the second message;

step 230, the user equipment sends a measurement report to the first node and/or the second node.

In a possible implementation manner, the first message is further used to instruct the ue to receive a service of the second node, or instruct to switch uplink transmission of the ue to the second node, or instruct the ue to perform uplink and downlink separated transmission, or instruct the ue to perform D2D communication with the second node.

In a possible implementation manner, in step 210, the second message is used to instruct the ue to measure the second node, and specifically may include: the second message is used for instructing the user equipment to measure the repeated receiving type of the second node.

In a possible implementation manner, the second message may include: any one or more of the second node identification, the repeated receiving type measurement indication and the repeated sending parameter;

Specifically, for specific explanation and examples of the second node, the second message, the measurement report, the repeated transmission parameter, the measurement of the repeated reception type, and the like, reference may be made to the related description in the foregoing transmission control method embodiment, and details are not repeated here.

In the transmission control method of this embodiment, the first message received by the ue from the first node may indicate that the ue receives the user-specific information carried by the physical channel repeatedly sent by the second node, so as to improve the probability of successful data decoding of the ue and improve the downlink coverage of the second node.

Fig. 5 shows a flowchart of a transmission control method according to another embodiment of the present invention. As shown in fig. 5, taking the first node as a Macro base station (e.g., Macro or eNB) and the second node as a low power base station (e.g., Pico) as an example, the eNB determining a process that may instruct to switch uplink transmission of the UE to the Pico may specifically include:

step 401, Pico sends a configuration message to eNB.

Specifically, the configuration message may include an identifier of the Pico and/or an identifier of the user equipment and/or a repeat transmission parameter, where the base station identifier or the cell identifier of the Pico belongs to the identifier of the Pico. Further, the repeated transmission parameter may include:

(1) the number of the subframes for repeatedly sending the same content, for example, the subframes for repeatedly sending the same content are N;

(2) a start subframe, such as transmitting the same content starting from the K-th subframe or transmitting the same content starting from the K-subframe of the S-th frame;

(3) a transmission period such as a period T1 of repeatedly transmitting the same content;

(4) measurement configuration for Pico's cell.

Step 402, the eNB sends a second message to the UE.

In particular, some measurement configurations may be included in the second message:

(1) the identity of Pico is used for indicating the UE to which cell to measure the repeated receiving type;

(2) a repeated reception type measurement indication for indicating the UE to perform the repeated reception type measurement. A measurement of a duplicate reception type comprising: the UE receives a reference signal repeatedly sent by the second node, measures the reference signal, accumulates multiple measurement results (for example, K is a natural number greater than 0), and feeds back the accumulated measurement results to the first node. The Reference Signal may be, for example, a Cell Reference Signal (CRS), or a Channel-State Information-Reference Signal (CSI-RS).

(3) The repeated transmission of the parameters is optional.

Step 403, after receiving the second message from the eNB, the UE measures the Pico according to the measurement configuration in the second message. The UE may then report the measurement report to the eNB. Optionally, a repeated reception type measurement indication is carried in the measurement report, for indicating that the measurement is based on the repeated reception type measurement.

For example, the UE measures K + N subframes starting from K subframe of the kth subframe/S subframe. Alternatively, the measurement may be periodic or aperiodic.

Then, the UE performs RRM measurement on a certain cell of the Pico by using a measurement method of repeated reception (UE side is repeated reception, and network side is repeated transmission), specifically, measures a reference signal (e.g., CRS, or CSI-RS) transmitted by the Pico so as to report a measurement report to the eNB.

Optionally, the message sent by the UE to the eNB may further include an indication for indicating to report the measurement result of the repeated reception type.

Step 404, after receiving the measurement report of the UE, the eNB determines whether to switch uplink transmission of the UE to Pico according to the measurement report.

Specifically, the eNB determines the quality of the downlink signal of the Pico received by the UE according to the measurement report of the UE. The measurement report may specifically feed back signal quality such as RSRP, RSRQ, RSSI, CQI, PMI, and the like of the reference signal, and may determine whether to switch uplink transmission of the UE to Pico;

or, in step 404, after receiving the measurement report of the UE, the eNB may decide to switch uplink transmission of the UE to Pico according to the measurement report decision instruction, or may decide to separate uplink and downlink of the UE; or may also decide to instruct the UE to switch some or all Radio bearers (Radio Bearer) into Pico, etc.

Step 405, if the eNB decides to switch the uplink transmission of the UE to the Pico, the eNB may send a first message to the UE, instruct the UE to receive the information repeatedly sent by the Pico through the first message, and instruct to switch the uplink transmission of the UE to the Pico.

Fig. 6 shows a flowchart of a transmission control method according to another embodiment of the present invention. As shown in fig. 6, taking the first node as a Macro base station (e.g., Macro or eNB) and the second node as a low power base station (e.g., Pico) as an example, the eNB determines whether to perform uplink and downlink separation on the UE, which may specifically include:

step 500, the eNB determines whether to separate uplink and downlink of the UE according to the measurement report of the UE.

Or, in step 500, after receiving the measurement report of the UE, the eNB may determine whether to switch uplink transmission of the UE to Pico according to the measurement report, or determine to separate uplink and downlink of the UE; or may also decide to switch the UE part or all Radio bearers (Radio Bearer) into Pico, etc.

Specifically, referring to the above embodiment, the eNB may determine, according to the measurement report of the UE, the quality of the downlink signal received by the UE from the Pico, so as to determine whether to switch uplink transmission of the UE to the Pico, or determine to separate uplink and downlink of the UE. Step 500 may also be replaced by steps 401 to 404 in fig. 4, which are not described herein again.

If the UE is decided to be separated from the uplink and the downlink, the method also comprises the following steps:

step 501, the eNB sends a third message to the Pico, where the third message may include any one or more of a second node identifier, a repeated reception indication, and a repeated sending parameter.

For example, the third message may include a downlink repeat transmission instruction (for notifying the Pico to use a repeat transmission method for the downlink signal transmitted by the UE), optionally further include an uplink and downlink separation instruction (for notifying the Pico to switch the uplink transmission of the UE to the Pico), and the third message may further include an identifier of the UE.

Optionally, step 501 may also be followed by step 501A, eNB, and step 502 is then executed after receiving the pico reply message. Of course, step 501A may also be performed simultaneously with step 502, or step 501A may also be performed after step 502. The invention is not limited.

Step 502, the eNB sends a first message to the UE, where the first message may include a downlink repeated reception indication (used to notify the UE of using a repeated reception manner for a downlink signal sent by the Pico), optionally further includes an uplink and downlink separation indication (the uplink and downlink separation indication is used to notify the UE of switching uplink transmission of the UE into the Pico), and further may repeatedly send parameters in the first message. The specific content of the repeated transmission parameter can be referred to the relevant description in the above embodiment.

In step 503, the Pico transmits the same content in consecutive N subframes, i.e. repeatedly transmits the user specific information carried by the physical channel. The transmitted content may be user-specific information carried by the physical channel, such as control signaling for scheduling the UE, e.g., ACK/NACK, etc.

Step 504, the UE receives the control signaling of the Pico, and sends the uplink signaling or the uplink data to the Pico according to the control signaling.

Step 505, the UE receives the control signaling of the eNB. The control signaling may include downlink scheduling for the UE.

Step 506, the UE receives downlink data of the eNB according to the control signaling of the eNB.

After step 503 and step 504, that is, after receiving the data sent by the UE, Pico needs to feed back ACK/NACK to the UE, and the ACK/NACK may also be repeatedly sent over N subframes. Pico repeats N subframes on PHICH to send HARQ ACK/NACK to UE.

In which time-frequency resource blocks, the Pico may send the control signaling to the UE in a repeated sending manner, and the specific embodiment may refer to step 503.

Pico repeats N subframes on PHICH to send HARQ ACK/NACK to UE.

Wherein, the order of step 505 and step 506 can occur in any step from step 501 to step 504.

Fig. 7 shows a flowchart of a transmission control method according to another embodiment of the present invention. In a D2D communication scenario, taking a first node as a base station (eNB), a second node as a UE1, and a user equipment as a UE2 as an example, as shown in fig. 7, the method may specifically include:

step 601, the UE1 receives a configuration message from the eNB, where the configuration message may include configuration information transmitted by a reference signal (e.g., SRS).

Step 602, the eNB sends a second message to the UE2, where the second message may include some measurement configurations:

(1) the identity of the UE1 (i.e., the identity of the second node, which parameter is optional) is used to instruct the UE2 to make duplicate reception type measurements for the UE 1. If there is no specific second node identity in the second message, it may indicate that the UE2 autonomously searched for and detected a certain UE (e.g., UE 1).

(2) A duplicate reception type measurement indication for instructing the UE2 to make a duplicate reception type measurement. The measurement of the repeated reception type may specifically be that the UE1 accumulates CRS measurement results of "the number of subframes repeatedly transmitting the same content" as a measurement result of one subframe. This keeps both the measurement method and the channel demodulation method from using repeated reception.

(3) For details of repeatedly sending the parameters, reference may be made to the related description in the above embodiment, and the measurement configuration for a certain cell of Pico may be changed to the measurement configuration for the UE 1. It is not necessary to repeatedly transmit the parameters at the time of measurement. Since the measurements are only related to the synchronization channel (for discovery), the common reference signal (for measurement). The former synchronization channel is optional because it needs to be configured, and instructs the UE to determine the synchronization relationship of the cells to be measured according to the timing relationship of the serving cell.

Step 603, after receiving the second message, the UE2 measures the UE1 according to the measurement configuration in the second message. The UE may then report the measurement report to the eNB. Optionally, a repeated reception type measurement indication is carried in the measurement report, for indicating that the measurement is based on the repeated reception type measurement.

For example, the UE2 measures K + N subframes starting from the K subframe start/K subframe of the S frame. Alternatively, the measurement may be periodic or aperiodic.

Then, the UE2 measures the UE1 by using a measurement method of repeated reception (repeated reception on the UE side and repeated transmission on the network side), performs RRM measurement, measures a reference signal (such as SRS) of the UE1, and reports the measurement report to the eNB.

Optionally, the message sent by the UE2 to the eNB may further include an indication for indicating reporting of the measurement result of the repeated reception type.

In step 604, the eNB determines, based on the measurement report of the UE2, that the UE2 (generally, a UE outside the coverage of the UE1 served by the Macro base station Macro) and the UE1 are in D2D communication.

Specifically, the eNB determines, according to the measurement report of the terminal UE2, the downlink signal quality of the UE2 received the UE1, thereby deciding whether to decide the UE2 and the UE1 to perform D2D communication.

Step 605, the eNB sends a third message to the UE1, where the third message may include any one or more of a second node identifier, a repeated reception indication, and a repeated sending parameter;

for example, the third message may include a downlink retransmission indication (for notifying the UE1 to use a retransmission scheme for the downlink signal transmitted by the UE 2). Optionally, the third message further includes a D2D communication indication (for indicating the UE1 and the UE2 to perform D2D communication), and the third message may further include an identifier of the UE 2.

Step 606, the eNB sends a first message to the UE2, where the first message may include a downlink duplicate reception indication (for notifying the UE2 to use a duplicate reception mode for the downlink signal sent by the UE 1). Optionally, the first message may further include a D2D communication indication (for indicating the UE1 and the UE2 to perform D2D communication), and the first message may further include a repeated transmission parameter, where the measurement configuration of the UE1 may be included.

Step 607, the UE1 transmits the same content in consecutive N subframes, i.e. repeatedly transmits the user-specific information carried by the physical channel. The transmitted content may be user-specific information carried by the physical channel, such as control signaling to schedule the UE2, e.g., ACK/NACK fed back to the UE2, etc.

In step 608, the UE2 receives the control signaling of the UE1, and sends uplink signaling or uplink data to the UE1 according to the control signaling.

Step 609, the UE2 receives control signaling from the eNB. The control signaling may include downlink scheduling for the UE 2.

Step 610, the UE2 receives downlink data of the eNB according to the control signaling of the eNB.

The order of steps 609, 610 may occur in any of steps 601 to 608.

In the scenario of D2D communication, the second node may be replaced by a UE, that is, a UE outside the normal coverage area of D2D served by the first node, and receive the configuration information about D2D from the first node, so as to implement data transmission with the UE, and the distance of D2D communication may be effectively extended.

Fig. 8 is a block diagram showing a structure of a node apparatus according to an embodiment of the present invention. As shown in fig. 8, the node apparatus 700 may mainly include:

a sending module 710, configured to send a first message to a user equipment, where the first message is used to instruct the user equipment to receive user-specific (UE-specific) information carried by a physical channel and repeatedly sent by a second node.

For example, in a heterogeneous network, when a UE is located in a challenging area, i.e., at the edge of the coverage area of a base station, the UE is far away from the base station, and cannot receive signaling and/or data transmitted by the base station well. In this case, the base station may repeatedly transmit the same content to the UE in consecutive subframes in a repeated transmission manner, so as to improve the coverage capability of the base station, so that the UE in the challenging area may receive the signaling and/or data transmitted by the base station. In the heterogeneous network, the node device may be a Macro base station (e.g., Macro), the second node may be a low power base station (e.g., Pico), and the Pico may be located at the edge of a cell covered by the Macro, and a cell under the Pico coverage may be referred to as a small cell. The node apparatus 700 may transmit a first message to a UE located in a contention region through the transmission module 710, instructing the UE to receive user-specific (UE-specific) information carried by a physical channel repeatedly transmitted by a second node.

As another example, in a scenario of Device-to-Device (D2D) communication, where the second node is another UE, if the local UE needs to communicate with the second node, the node Device 700 may send a first message to the local UE via the sending module 710, instructing the local UE to receive user-specific information carried by a physical channel repeatedly sent by the second node.

In a possible implementation manner, the second node may repeatedly send the user-specific information carried by the physical channel, for a specific example, refer to the related description of the transmission control method in the foregoing embodiment of the present invention, and details are not described here again.

In one possible implementation manner, the first message may include: any one or more of the second node identification, repeated receiving indication and repeated sending parameters; wherein the repeated transmission parameters include any one or more of the following parameters: the number of repeated transmissions, the starting subframe, the transmission period and the second node measurement configuration. For a specific example, reference may be made to the description of the transmission control method according to the above embodiment of the present invention, and details are not described herein again.

the first message is used for instructing the user equipment to receive user-specific information carried by a physical channel repeatedly sent by a second node and instructing to switch uplink transmission of the user equipment to the second node; or,

the first message is used for instructing the UE to receive user-specific information carried by a physical channel repeatedly sent by a second node, and instructing the UE to perform uplink and downlink separate transmission (for example, UE uplink communicates with the second node, and downlink communicates with node equipment); or,

the first message is used for indicating the user equipment to receive user-specific information carried by a physical channel repeatedly sent by a second node, and indicating that the uplink and the downlink of part or all services of the user equipment are served by the second node; or,

the first message is used for instructing the user equipment to receive user-specific information carried by a physical channel repeatedly sent by the second node, and instructing the user equipment to perform D2D communication with the second node.

Therefore, optionally, the first message may further include an explicit indication information, which is used to indicate to switch uplink transmission of the user equipment to the second node, or indicate to perform uplink and downlink separate transmission on the user equipment UE (for example, uplink and downlink of the UE are communicated with the second node, and downlink is communicated with the node equipment), or indicate that uplink and downlink of part or all of services of the user equipment are served by the second node, or indicate to perform D2D communication on the user equipment and the second node. Of course, the first message does not include the indication information, and may be implemented in an implicit manner.

Fig. 9 shows a flowchart of a node apparatus according to another embodiment of the present invention. Components in fig. 9 that are numbered the same as those in fig. 8 have the same functions, and detailed descriptions of these components are omitted for the sake of brevity.

As shown in fig. 9, the node apparatus 800 shown in fig. 9 is mainly different from the node apparatus 700 shown in fig. 8 in that, in the node apparatus 800, in addition to the functions in the foregoing embodiments, the sending module 810 may be further configured to send a second message to the user equipment, where the second message is used to instruct the user equipment to perform measurement on a second node.

Specifically, before the node apparatus 800 sends the first message to the UE through the sending module 810, the node apparatus 800 may first determine whether to instruct the UE to receive the information repeatedly sent by the second node. In the determining process, the node device 800 first sends a second message to the UE through the sending module 810, and instructs the UE to measure the second node. Wherein the measurement may be a repeated reception type measurement.

In one possible implementation manner, the second message includes: any one or more of the second node identification, the repeated receiving type measurement indication and the repeated sending parameter; wherein the repeated transmission parameters include any one or more of the following parameters: the number of repeated transmissions, the starting subframe, the transmission period and the second node measurement configuration. The measurement of the duplicate reception type includes: the user equipment receives a reference signal repeatedly sent by a second node, measures the reference signal, accumulates multiple measurement results (for example, K is a natural number greater than 0), and feeds back the accumulated measurement results to the node equipment. The Reference Signal may be, for example, a Cell Reference Signal (CRS), or a Channel-State Information-Reference Signal (CSI-RS).

Specifically, K (K is a natural number greater than 0) may be the number corresponding to the number of repetitions, or may be network configuration (for example, a parameter configured by OAM), and K may be the same as or different from the number of repetitions. The parameter K may also be included in the first message or the second message sent to the UE.

The parameter K may be included in the configuration message received by the node device from the second node.

For example, the UE may perform repeated reception type measurements on a cell corresponding to the identity of the second node. The process of the UE performing the repeated reception type measurement at a time may include: and the UE receives the reference signal repeatedly sent by the second node. If the number of subframes for repeatedly transmitting the same content included in the second message is N, the UE may weight the measurement results of the reference signals of the N subframes transmitted by the second node, and use the obtained weighting result as the measurement result of one subframe. Then, the K times of measurement results are accumulated, and the accumulated measurement results are fed back to the node apparatus 800. This makes it possible to make both the measurement method and the channel demodulation method a method using repeated reception.

A receiving module 820, connected to the sending module 810, configured to receive a measurement report returned by the ue;

a determining module 830, connected to the receiving module 820, configured to determine whether to instruct the ue to receive the user-specific information repeatedly sent by the second node.

Specifically, after the UE performs the repeated reception type measurement on the second node according to the indication of the second message and the parameter included in the second message, the UE may obtain a corresponding measurement result, form a measurement report according to the measurement result, and send the measurement report to the node device 800. After the node apparatus 800 receives the measurement report through the receiving module 820, the determining module 830 may determine the signal quality of the link between the UE and the second node according to the measurement report, thereby determining whether to instruct the UE to receive the information repeatedly transmitted by the second node.

In one possible implementation, the sending module 810 may be further configured to:

in case one, if the determining module 830 determines to instruct the ue to receive the user-specific information repeatedly sent by the second node according to the measurement report, the first message is sent to the ue.

Specifically, the UE measures the signal sent by the second node, and if the signal quality received by the UE from the second node meets a certain requirement, for example, the signal quality meets a threshold, the node device 800 may determine, by the determining module 830, that the UE is instructed to receive the information repeatedly sent by the second node, and send the first message to the UE. For example, the UE performs RRM measurement on the second node, specifically, the UE performs measurement on a reference signal (for example, a CRS reference signal) transmitted by the second node, and feeds back one or more of the following parameters to the node device 800: RSRP (reference Signal Receive Power), RSRQ (reference Signal received Quality), RSSI (received Signal sequence indicator), PMI (decoding matrix indicators), CQI (channel Quality indicator), RI (rank indicator), and the like.

Case two, on the basis of case one, if the determining module 830 determines from the measurement report that the user equipment is instructed to receive the user-specific information repeatedly transmitted by the second node, the determining module 830 may be further configured to:

and according to the measurement report, determining whether to instruct the uplink transmission of the user equipment to be switched into a second node, determining whether the user equipment performs uplink and downlink separated transmission or determining whether the user equipment performs D2D communication with the second node.

Then, the transmitting module 810 may be further configured to: if the determining module 830 determines, according to the measurement report, to instruct the ue to switch uplink transmission to the second node, determine that the ue performs uplink and downlink separate transmission, or determine that the ue performs D2D communication with the second node, send a first message to the ue.

Specifically, in a scenario of a heterogeneous network, after the node device 800 receives the measurement report through the receiving module 820, the determining module 830 may further determine, according to the measurement report, to instruct to switch uplink transmission of the UE to the second node (that is, to change the UE to send an uplink signal to the second node, and the second node receives control signaling and/or data of the UE, so as to provide an uplink service for the UE); or, the determining module 830 determines whether the UE performs uplink and downlink separated transmission according to the measurement report, that is, the uplink and downlink of the UE are switched from being served by the node device 800 to the uplink of the UE served by the second node and the downlink served by the node device 800. If the determining module 830 determines that the UE receives the signal sent by the second node according to the measurement report, and the signal quality is good, it may be determined to switch uplink transmission of the UE to the second node, or determine that the UE performs uplink and downlink separated transmission. The determining module 830 may determine that all the uplink and downlink of the UE are exchanged to the second node, that is, the uplink and downlink of the UE are served by the second node; when there are multiple types of services for the UE, the determining module 830 may also determine to switch the uplink of part or all of the services (e.g., part or all of the bearer) of the UE into the second node, that is, the uplink of part or all of the services of the UE is served by the second node, and the downlink is served by the node device 800; in addition, the determining module 830 may further determine that all uplink and downlink of part or all of the services of the UE are switched to the second node, that is, the uplink and downlink of part or all of the services of the UE are served by the second node.

Further, in a scenario of D2D communication, the node apparatus 800 may be a certain UE, the second node may be another UE, and the determining module 830 may determine whether to communicate with the second node in D2D according to the measurement report.

Therefore, for the second case, the first message sent by the sending module 810 to the UE may also be used to instruct the UE to receive the service of the second node, or instruct to switch the uplink transmission of the UE to the second node, or instruct the UE to perform uplink and downlink separated transmission, or instruct the UE to perform D2D communication with the second node.

Fig. 10 is a block diagram showing a structure of a node apparatus according to another embodiment of the present invention. Components in fig. 10 that are numbered the same as those in fig. 8 and 9 have the same functions, and detailed descriptions of these components are omitted for the sake of brevity.

As shown in fig. 10, the node apparatus 900 shown in fig. 10 is mainly different from the node apparatuses shown in fig. 8 and fig. 9 in that, in addition to the functions in the above embodiments of the present invention, the receiving module 920 of the node apparatus 900 may be configured to:

the configuration message is used for receiving the configuration message of the second node, and the configuration message comprises the second node identification and/or the repeated sending parameter; wherein the repeated transmission parameters include any one or more of the following parameters: the number of repeated transmissions, the starting subframe, the transmission period and the second node measurement configuration.

Further, the sending module 910 of the node device 900, besides having the functions in the above embodiments of the present invention, may be further configured to:

for sending a third message to the second node, the third message being used to instruct the second node to repeatedly send the user-specific information to the user equipment. Specifically, the third message may include a user identifier, so as to instruct the second node to repeatedly send the user-specific information to the user equipment corresponding to the user identifier.

Specifically, the user-specific information carried by the physical channel repeatedly sent by the second node is the same, and the user-specific information carried by the physical channel may be control signaling or data. For example, the control signaling may be a PDCCH or a PHICH (Physical Hybrid-ARQ Indicator Channel), and the data may be a PDSCH. Uplink scheduling information of the second node to the UE may be included in the PDCCH, and the uplink scheduling information may be used to instruct the UE to transmit uplink signaling and/or data to the second node. For example, the information repeatedly sent by the second node may be UE specific information (UE specific information) repeatedly sent on the physical channel bearer. The ue specific information (UEspecific information) carried by the physical channel may be ue specific information carried by the second node on the PDCCH and/or PHICH and/or PDSCH, that is, the ue specific information sent by the second node on the PDCCH and/or PHICH and/or PDSCH to the ue. The PHICH may be used to transmit HARQ ACK/NACK.

Specifically, the node device 900 sends the first message and the third message to the second node to the UE through the sending module 910, which may be executed simultaneously or one may precede another. For example, after the node apparatus 900 sends the third message to the second node through the sending module 910, the node apparatus 900 receives the reply acknowledgement message sent by the second node through the receiving module 920, so that the node apparatus 900 sends the first message to the UE through the sending module 910. The third message may include a user identity, for example, an identity of the UE, which may indicate to which UE the second node repeatedly transmits the information.

In the node device of this embodiment, the sending module sends the first message to the user equipment, which may indicate that the user equipment receives the user-specific information carried by the physical channel repeatedly sent by the second node, so that the probability of successful data decoding of the user equipment may be improved, and the downlink coverage area of the second node may be improved. Specifically, the second node sends information to the UE, for example, the second node sends a data packet to the UE, the data packet is repeatedly transmitted on a plurality of consecutive TTI resources, and the UE combines data on the plurality of TTI resources to achieve the purpose of improving transmission quality. Therefore, the successful probability of the UE data decoding can be improved, and the downlink coverage range of the second node is improved. Here, each TTI is 1ms, i.e., 1 subframe.

Fig. 11 illustrates a block diagram of a user equipment according to another embodiment of the present invention. As shown in fig. 11, the user equipment 1000 may mainly include:

a receiving module 1010, configured to receive a first message sent by a first node, where the first message is used to instruct the ue to receive user-specific information carried by a physical channel repeatedly sent by a second node.

Specifically, in the heterogeneous network, the first node may be a Macro base station (e.g., Macro), the second node may be a low power base station (e.g., Pico), the Pico may be located at the edge of a cell covered by the Macro, and a cell under the Pico coverage may be referred to as a small cell. A user equipment 1000 in the challenging area may receive a first message sent by a first node instructing the user equipment 1000 to receive user-specific information carried by a physical channel repeatedly sent by a second node.

As another example, in a scenario of Device to Device (D2D) communication where the second node is another UE, if the local user equipment 1000 needs to communicate with the second node, the first node may send a first message to the local user equipment 1000 instructing the local user equipment 1000 to receive user-specific information carried by a physical channel repeatedly sent by the second node.

In a possible implementation manner, the receiving module 1010 may be further configured to receive a second message sent by the first node, where the second message is used to instruct the user equipment to perform measurement on a second node;

the user equipment 1000 may further include:

a measuring module 1020, connected to the receiving module 1010, configured to measure the second node according to the second message;

a sending module 1030, connected to the measuring module 1020, configured to send a measurement report to the first node and/or the second node.

In a possible implementation manner, the second message is used to instruct the ue to measure the second node, and specifically may include: the second message is used for instructing the user equipment to measure the repeated receiving type of the second node.

In the ue of this embodiment, the first message received by the receiving module from the first node may indicate that the ue receives the user-specific information carried by the physical channel and repeatedly sent by the second node, so as to improve the probability of successful data decoding of the ue and improve the downlink coverage of the second node.

Fig. 12 is a block diagram showing a configuration of a transmission control apparatus according to an embodiment of the present invention. The transmission control apparatus 1100 may be a host server having a computing capability, a personal computer PC, or a portable computer or terminal. The specific embodiments of the present invention do not limit the specific implementation of the compute node.

The transmission control apparatus 1100 includes a processor (processor)1110, a communication interface (communication interface)1120, a memory (memory array)1130, and a bus 1140. The processor 1110, the communication interface 1120, and the memory 1130 communicate with each other via the bus 1140.

The communication interface 1120 is used for communicating with network elements including, for example, virtual machine management centers, shared storage, etc.

Processor 1110 is configured to execute programs. Processor 1110 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement embodiments of the present invention.

The memory 1130 is used to store files. The memory 1130 may comprise high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory. The memory 1130 may also be a memory array. The storage 1130 may also be partitioned and the blocks may be combined into virtual volumes according to certain rules.

In one possible embodiment, the program may be a program code including computer operation instructions. The procedure is particularly useful for:

the first node sends a first message to the user equipment, wherein the first message is used for indicating the user equipment to receive user-specific information carried by a physical channel repeatedly sent by the second node.

In one possible implementation manner, before the first node sends the first message to the user equipment, the method includes:

the first node sends a second message to the user equipment, wherein the second message is used for indicating the user equipment to measure a second node;

the first node receives a measurement report returned by the user equipment;

and determining whether to instruct the user equipment to receive the user-specific information repeatedly sent by the second node or not according to the measurement report.

In one possible implementation manner, the sending, by the first node, a first message to the user equipment includes:

the first node sends the first message to the user equipment if it is determined from the measurement report that the user equipment is instructed to receive the user-specific information that is repeatedly sent by the second node.

In a possible implementation manner, after determining whether to instruct the ue to receive the user-specific information repeatedly sent by the second node according to the measurement report, the method further includes:

determining whether to instruct uplink transmission of the user equipment to be switched into a second node, whether to perform uplink and downlink separate transmission or whether to perform device-to-device D2D communication with the second node according to the measurement report;

and if the uplink transmission of the user equipment is determined to be switched into the second node according to the measurement report, the user equipment is determined to perform uplink and downlink separated transmission, or the user equipment is determined to perform D2D communication with the second node, the first node sends a first message to the user equipment.

In a possible implementation manner, the second message is used to instruct the ue to perform measurement on the second node, and includes:

In a possible implementation manner, before the first node sends the first message or the second message to the user equipment, the method includes:

the first node receives a configuration message of the second node, wherein the configuration message comprises the second node identification and/or repeated sending parameters;

In one possible implementation manner, the second message includes: any one or more of the second node identification, the repeated receiving type measurement indication and the repeated sending parameter;

In one possible implementation manner, the method further includes:

and the first node sends a third message to the second node, wherein the third message comprises a user identifier, and the third message is used for indicating the second node to repeatedly send a control signaling to the user equipment corresponding to the user identifier.

In one possible implementation manner, the first message includes: any one or more of the second node identification, repeated receiving indication and repeated sending parameters;

In one possible implementation, the repeatedly receiving type of measurement includes:

and the user equipment receives a reference signal repeatedly sent by a second node, measures the reference signal, accumulates results for multiple times, and feeds the result back to the first node.

The program may also be specifically for:

the method comprises the steps that user equipment receives a first message sent by a first node, wherein the first message is used for indicating the user equipment to receive user special information carried by a physical channel repeatedly sent by a second node.

In a possible implementation manner, before the user equipment receives the first message sent by the first node, the method includes:

the user equipment receives a second message sent by the first node, wherein the second message is used for indicating the user equipment to measure a second node;

the user equipment measures the second node according to the second message;

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may select different ways to implement the described functionality for specific applications, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

If the described functionality is implemented in the form of computer software and sold or used as a stand-alone product, it is to some extent possible to consider all or part of the technical solution of the invention (for example, the part contributing to the prior art) to be embodied in the form of a computer software product. The computer software product is generally stored in a computer-readable storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the methods according to the embodiments of the present invention. The storage medium includes various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and can be applied to LTE-a heterogeneous networks, and any person skilled in the art can easily understand the changes or substitutions within the technical scope of the invention, and all the changes or substitutions should be covered by the scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A transmission control method, comprising:

a first node sends a first message to user equipment, wherein the first message is used for indicating the user equipment to receive user special information carried by a physical channel repeatedly sent by a second node;

before the first node sends a first message to user equipment, the method comprises the following steps:

the first node receives a measurement report returned by the user equipment;

2. The transmission control method according to claim 1, wherein the first node sends a first message to a user equipment, comprising:

3. The transmission control method according to claim 1, wherein, after determining whether to instruct the ue to receive the user-specific information repeatedly transmitted by the second node according to the measurement report, the method further comprises:

and if it is determined according to the measurement report that the uplink transmission of the user equipment is instructed to be switched to the second node, that the user equipment performs uplink and downlink separate transmission, or that the user equipment performs D2D communication with the second node, the first node sends the first message to the user equipment.

4. The transmission control method according to any of claims 1-3, wherein the first message is further used to instruct the UE to accept the service of the second node, or instruct uplink transmission of the UE to be switched to the second node, or instruct the UE to perform uplink and downlink separated transmission, or instruct the UE to perform D2D communication with the second node.

5. The transmission control method according to any of claims 1-3, wherein the second message is used to instruct the UE to measure the second node, and comprises:

6. The transmission control method according to any of claims 1-3, wherein the first node, before sending the first message or the second message to the user equipment, comprises:

the first node receives a configuration message sent by the second node, wherein the configuration message comprises a second node identifier and/or a repeated sending parameter;

7. The transmission control method according to claim 6, wherein the second message comprises: any one or more of the second node identification, the repeated reception type measurement indication and the repeated transmission parameter;

8. The transmission control method according to any one of claims 1 to 3, characterized by further comprising:

9. The transmission control method according to claim 6, wherein the first message comprises: any one or more of the second node identification, repeated receiving indication and repeated sending parameters;

10. The transmission control method according to claim 5, wherein the measurement of the repeated reception type includes:

11. A transmission control method, comprising:

the method comprises the steps that user equipment receives a first message sent by a first node, wherein the first message is used for indicating the user equipment to receive user special information carried by a physical channel repeatedly sent by a second node;

before the user equipment receives a first message sent by a first node, the method comprises the following steps:

the user equipment measures the second node according to the second message;

12. The transmission control method according to claim 11, wherein the first message is further used to instruct the ue to receive a service of the second node, instruct uplink transmission to be switched to the second node, instruct the ue to perform uplink and downlink separated transmission, or instruct the ue to perform D2D communication with the second node.

13. The transmission control method according to claim 11 or 12, wherein the second message is used to instruct the ue to measure the second node, and specifically includes: the second message is used for instructing the user equipment to measure the repeated receiving type of the second node.

14. The transmission control method according to claim 11 or 12, wherein the second message includes: any one or more of the second node identification, the repeated receiving type measurement indication and the repeated sending parameter;

wherein the repeated transmission parameters include any one or more of the following parameters: a number of repetitions, a starting subframe, a transmission period, and the second node measurement configuration.

15. A node apparatus, comprising:

a sending module, configured to send a first message to a user equipment, where the first message is used to instruct the user equipment to receive user-specific information carried by a physical channel repeatedly sent by a second node;

the sending module is further configured to send a second message to the user equipment, where the second message is used to instruct the user equipment to measure the second node;

the node device further includes:

16. The node device of claim 15, wherein the sending module is further configured to send the first message to the user device if it is determined from the measurement report that the user device is instructed to receive the user-specific information that the second node repeatedly sends.

17. The node device of claim 15, wherein the determining module is further configured to determine, according to the measurement report, whether to instruct the user equipment to switch uplink transmission into the second node, whether to perform uplink and downlink separated transmission or whether to perform D2D communication with the second node;

18. The node device according to any of claims 15-17, wherein the first message is further used to instruct the ue to accept the service of the second node, or instruct uplink transmission of the ue to be switched to the second node, or instruct the ue to perform uplink and downlink separate transmission, or instruct the ue to perform D2D communication with the second node.

19. The node device according to any of claims 15-17, wherein the second message is used to instruct the ue to measure the second node, and comprises:

20. The node device according to any of claims 15-17, wherein the receiving module is further configured to receive a configuration message sent by the second node, wherein the configuration message includes a second node identification and/or a repeated sending parameter;

21. The node device of claim 20, wherein the second message comprises: any one or more of the second node identification, the repeated reception type measurement indication and the repeated transmission parameter;

22. The node device according to any of claims 15-17, wherein the sending module is further configured to send a third message to the second node, where the third message includes a user identifier, and the third message is used to instruct the second node to repeatedly send the user-specific information to the user device corresponding to the user identifier.

23. The node device of claim 20, wherein the first message comprises: any one or more of the second node identification, repeated receiving indication and repeated sending parameters;

24. The node device of claim 19, wherein the repeated reception type measurement comprises:

and the user equipment receives the reference signal repeatedly sent by the second node, measures the reference signal, accumulates results for multiple times, and feeds the results back to the node equipment.

25. A user device, comprising:

a receiving module, configured to receive a first message sent by a first node, where the first message is used to instruct a user equipment to receive user-specific information carried by a physical channel repeatedly sent by a second node;

the receiving module is further configured to receive a second message sent by the first node, where the second message is used to instruct the user equipment to measure the second node;

the user equipment further comprises:

26. The UE of claim 25, wherein the first message is further used to instruct the UE to accept the service of the second node, instruct uplink transmission to be switched to the second node, instruct the UE to perform uplink and downlink separated transmission, or instruct the UE to perform D2D communication with the second node.

27. The ue of claim 25 or 26, wherein the second message is used to instruct the ue to measure the second node, and comprises:

28. The ue of claim 25 or 26, wherein the second message comprises: any one or more of the second node identification, the repeated receiving type measurement indication and the repeated sending parameter;