WO2016019750A1

WO2016019750A1 - Method, apparatus and system for network-assisted terminal blind detection, and related device

Info

Publication number: WO2016019750A1
Application number: PCT/CN2015/080380
Authority: WO
Inventors: 王飞; 金婧; 童辉; 王启星
Original assignee: 中国移动通信集团公司
Priority date: 2014-08-08
Filing date: 2015-05-29
Publication date: 2016-02-11
Also published as: CN105338543A; CN105338543B

Abstract

Disclosed are a method, apparatus and system for network-assisted terminal blind detection, and a related device. The method, implemented by a network side, for network-assisted terminal blind detection comprises the following steps: receiving uplink and downlink timeslot configuration information of a neighboring cell sent by a base station in the neighboring cell (S31); and notifying a terminal in the local cell of blind detection-related information (S32), the blind detection-related information being information determined according to uplink and downlink timeslot configuration information of the neighboring cell. The method, implemented by a terminal side, for network-assisted terminal blind detection comprises the following steps: receiving blind detection-related information sent by a network side; and determining a neighboring cell subframe of an unknown type according to the blind detection-related information, and performing blind detection on the neighboring cell subframe of the unknown type. The present invention is used to reduce complexity of terminal blind detection and save terminal processing resources during the process of network-assisted interference cancellation.

Description

Method, device, system and related equipment for blind detection of network auxiliary terminal

Technical field

The present invention relates to the field of wireless communication technologies, and in particular, to a method, device, system and related device for blind detection of a network auxiliary terminal.

Background technique

Network-assisted interference cancellation (NAICS) refers to the configuration of advanced receivers by the terminal, using the interference information notified by the network side, combined with its own blind detection to remove neighboring interference to improve reception performance.

As shown in FIG. 1 and FIG. 2 respectively, FIG. 1 is a schematic diagram of inter-cell interference, and FIG. 2 is a schematic diagram of network-assisted interference deletion. The auxiliary information that the terminal needs to obtain from the network side in order to perform effective interference deletion mainly includes the following two types: one is cell-specific auxiliary information, including system bandwidth, synchronization indication, and Cell ID (neighborhood). Cell ID), CRS Ports (PA) and PA parameters and PB parameters; the other is User-specific auxiliary information, including CSI-RS (Channel Status Information Reference Signal) ), TM (Transmission Mode), RI (Rank Indication), PMI (Precoding Matrix Indicator), PA parameters, MCS (Modulation and Coding Scheme) DMRS Ports ( Demodulation reference signal port), DMRS VCID (demodulation reference signal virtual cell identifier), resource allocation type, and resource allocation granularity.

Currently, the LTE system supports a total of seven uplink and downlink time slot ratios, as shown in Table 1:

Table 1

The NAICS technology can only eliminate the downlink subframe interference in the neighboring cell, and can't do anything for the uplink subframe. The terminal can perform interference deletion through NACIS only when it determines that the current subframe of the neighboring cell is a downlink subframe. For an application scenario in which the upper and lower slot ratios are dynamically changed, for example, in a small cell enhancement (eIMTA) application scenario, the terminal cannot obtain high-level signaling to learn whether the current subframe of the neighboring cell is a downlink subframe. It can only rely on its own blind detection to know whether the current subframe of the neighboring cell is a downlink subframe. According to Table 1, the 6 subframes whose subframe numbers are {#3, #4, #6, #7, #8, #9} may all be downlink subframes. Therefore, in extreme cases, the terminal needs to A blind check on these 6 subframes can determine the downlink subframe of the neighboring cell. As shown in table 2:

Table 2

This increases the complexity of the blind detection of the terminal. At the same time, the blind processing of the terminal needs to consume the processing resources of the terminal, resulting in waste of processing resources of the terminal.

Summary of the invention

Embodiments of the present invention provide a method, device, system, and related device for blind detection of a network auxiliary terminal, It is used to reduce the complexity of terminal blind detection and save terminal processing resources in the process of network-assisted deletion of interference.

The embodiment of the invention provides a method for blind detection of a network auxiliary terminal implemented by a network side, including:

Receiving uplink and downlink time slot configuration information of the neighboring cell sent by the neighboring base station;

The terminal is notified of the blind detection related information, and the blind detection related information is determined according to the uplink and downlink time slot configuration information of the neighboring area.

The uplink and downlink time slot configuration information of the neighboring cell includes a time division duplex uplink and downlink time slot configuration TDD UL/DL configuration information in the neighboring cell system information block SIB1 and a downlink reference uplink and downlink time slot configuration DL reference UL/DL configuration information. .

The blind detection related information is TDD UL/DL configuration information in the neighboring cell SIB1 and DL reference UL/DL configuration information used in the small cell enhanced eIMTA;

Notify the terminal of blind detection related information in this area, including:

The TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring cell SIB1 of the local area are notified.

Determine the blind test related information as follows:

Determining, according to the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring cell SIB1, a subframe type of each subframe of the neighboring cell;

Determining, by the subframe type information of each subframe of the neighboring cell, the blind detection related information;

The subframe type of each subframe of the neighboring cell determined by the terminal in the local area is notified in a manner agreed in advance with the terminal in the local area.

The embodiment of the invention provides a device for blind detection of a network auxiliary terminal, comprising:

a receiving unit, configured to receive uplink and downlink time slot configuration information of a neighboring cell sent by a neighboring base station;

The notification unit is configured to notify the terminal of the local area to perform blind detection related information, where the blind detection related information is determined according to the uplink and downlink time slot configuration information of the neighboring area.

The blind detection related information is the uplink and downlink time slot configuration information of the neighboring cell, and the uplink and downlink time slot configuration information of the neighboring cell includes the time division duplex uplink and downlink time slot configuration TDD UL/DL configuration in the neighboring system information block SIB1. Information and downlink reference uplink and downlink time slots for small cell enhanced eIMTA Set DL reference UL/DL configuration information;

The notification unit is specifically configured to notify the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1 of the local area.

The uplink and downlink time slot configuration information of the neighboring area includes TDD UL/DL configuration information and DL reference UL/DL configuration information in the neighboring area SIB1;

The device further includes a determining unit, wherein:

The determining unit is configured to determine, according to the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring cell SIB1, a subframe type of each subframe in the neighboring cell, and determine each sub-zone of the neighboring cell. The subframe type information of the frame is the blind check related information;

The notification unit is specifically configured to notify the terminal in the local area to determine the subframe type of each subframe of the neighboring cell by using a manner agreed in advance with the local area terminal.

The embodiment of the invention provides a base station, which comprises the device for blind detection of the network auxiliary terminal implemented by the network side.

The embodiment of the invention provides a method for blind detection of a network auxiliary terminal implemented by a terminal side, including:

Receiving blind detection related information sent by the network side;

Determining an unknown type of neighboring cell subframe according to the blind detection related information, and performing blind detection on an unknown type of neighboring sub-frame.

The blind detection related information is determined by the network side according to the neighboring uplink and downlink timeslot configuration information sent by the neighboring cell base station.

The uplink and downlink timeslot configuration information of the neighboring cell is the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1; the blind detection related information is the TDD UL/DL configuration in the neighboring area SIB1. Information and DL reference UL/DL configuration information;

Determining an adjacent type of neighboring subframe according to the blind detection related information, including:

The neighboring subframe of the unknown type is determined according to the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1.

The uplink and downlink time slot configuration information of the neighboring cell is the TDD UL/DL configuration in the neighboring area SIB1. Information and DL reference UL/DL configuration information; the blind detection related information is a neighboring cell determined by the network side according to TDD UL/DL configuration information and DL reference UL/DL configuration information in the neighboring area SIB1. Subframe type information of the subframe;

The neighboring subframe of the unknown type is determined according to the subframe type information of each subframe of the neighboring cell.

An embodiment of the present invention provides a device for blind detection of a network auxiliary terminal implemented by a terminal side, including:

a receiving unit, configured to receive blind detection related information sent by the network side;

And a blind detection unit, configured to determine an adjacent type of neighboring subframe according to the blind detection related information, and perform blind detection on an unknown type of neighboring subframe.

The blind detection related information is determined by the network side according to the uplink and downlink time slot configuration information of the neighboring cell sent by the neighboring cell base station, and the uplink and downlink time slot configuration information of the neighboring cell is the TDD UL/DL configuration in the neighboring cell SIB1. Information and DL reference UL/DL configuration information; the blind detection related information is TDD UL/DL configuration information and DL reference UL/DL configuration information in the neighboring area SIB1;

The blind detection unit is specifically configured to determine an adjacent type of neighbor subframe according to the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1.

The blind detection related information is determined by the network side according to the uplink and downlink time slot configuration information of the neighboring cell sent by the neighboring cell base station, and the uplink and downlink time slot configuration information of the neighboring cell is the TDD UL/DL configuration in the neighboring cell SIB1. Information and DL reference UL/DL configuration information; the blind detection related information is a neighboring cell determined by the network side according to TDD UL/DL configuration information and DL reference UL/DL configuration information in the neighboring area SIB1. Subframe type information of the subframe;

The blind detection unit is specifically configured to determine a neighboring subframe of an unknown type according to subframe type information of each subframe in the neighboring cell.

The embodiment of the invention provides a terminal, which comprises the device for blind detection of the network auxiliary terminal implemented by the terminal side.

An embodiment of the present invention provides a system for blind detection of a network-assisted terminal, including a base station and a terminal, where the base station is provided with a device for blind detection of a network-assisted terminal implemented by the network side, where the terminal side is provided with the terminal side A device for performing blind detection of a network assisted terminal.

The method, device, system and related device for blind detection of a network auxiliary terminal according to an embodiment of the present invention, on the network side, the base station receives the uplink and downlink time slot configuration information of the neighboring area sent by the neighboring area, and accordingly determines the blind detection correlation of the terminal in the local area. And notifying the terminal in the local area, so that the terminal can determine the neighboring cell subframe of the unknown type according to the received blind detection related information, and perform blind detection on the neighboring cell subframe of the unknown type to determine whether the neighboring cell subframe is downlink. The sub-frame can be seen that, according to the embodiment of the present invention, the terminal only needs to perform blind detection on the neighboring sub-frames of the type that cannot be determined according to the blind detection related information, without traversing each neighboring sub-frame, thereby reducing the blind detection of the terminal. The complexity saves the processing resources of the terminal.

Other features and advantages of the invention will be set forth in the description which follows, The objectives and other advantages of the invention may be realized and obtained by means of the structure particularly pointed in the appended claims.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram of inter-cell interference in the prior art;

2 is a schematic diagram of network assisted interference deletion in the prior art;

3 is a schematic diagram of an implementation process of a method for performing blind detection of a network auxiliary terminal on a network side according to an embodiment of the present invention;

4 is a schematic diagram of an implementation process of a method for performing blind detection of a network auxiliary terminal on a terminal side according to an embodiment of the present invention;

5a is a schematic diagram of uplink and downlink configuration information of a first neighboring area according to an embodiment of the present invention;

FIG. 5b is a schematic diagram of uplink and downlink configuration information of a second neighboring area according to an embodiment of the present invention;

5c is a schematic diagram of uplink and downlink configuration information of a third neighboring area according to an embodiment of the present invention;

6 is a schematic structural diagram of a first type of network auxiliary terminal blind detection apparatus according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a second network auxiliary terminal blind detection apparatus according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic structural diagram of a blind detection system of a network auxiliary terminal according to an embodiment of the present invention.

detailed description

The method and device for blind detection of the network auxiliary terminal are provided in the embodiment of the present invention, in order to reduce the complexity of the blind detection of the network in the scenario of the dynamic change of the slot ratio in the neighboring area, and save the terminal processing resources. , systems and related equipment.

The preferred embodiments of the present invention are described in conjunction with the accompanying drawings, and the preferred embodiments described herein are intended to illustrate and explain the invention, and not to limit the invention, and The embodiments and the features in the embodiments can be combined with each other.

As shown in FIG. 3, a schematic flowchart of an implementation process of a method for performing network-assisted terminal blind detection on a network side includes the following steps:

S31. Receive uplink and downlink time slot configuration information of the neighboring cell sent by the neighboring base station.

In a specific implementation, in an eIMTA scenario, an eNB (base station) can dynamically adjust an uplink and downlink time slot ratio according to information such as the uplink and downlink traffic ratio. Specifically, the eNB notifies the uplink and downlink time slot configuration used by the UE (User Equipment) by DCI (Downlink Control Information), and the minimum adjustment time that can be supported is 10 ms. At the same time, in the eIMTA scenario, the reference configuration is used to solve the HARQ (Hybrid Automatic Repeat Request) timing problem caused by the fast adjustment of the uplink and downlink time slot ratio. The eNB uses the SIB1 (System Information Block1, system). Information block 1, SIB1 is used to describe the TDD UL/DL configuration information in the cell access related information) as the UL reference configuration, and the DL reference is notified using the higher layer signaling. UL/DL configuration (downlink reference uplink and downlink time slot configuration). In general, the downlink subframe of the TDD UL/DL configuration in the SIB1 cannot be used as the flexible subframe, that is, the downlink subframe in the TDD UL/DL configuration is fixed, and the uplink subframe of the DL reference UL/DL configuration Cannot be used as a flexible subframe, that is, the uplink subframe in the DL reference UL/DL configuration is fixed.

Based on this, in the embodiment of the present invention, the uplink and downlink timeslot configuration information of the neighboring cell includes the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring cell SIB1. In a specific implementation, the neighboring base station can notify the base station of the uplink and downlink time slot configuration information through the X2 interface.

S32. Notifying the terminal of the local area to blindly check related information.

The blind detection related information is determined by the base station according to the uplink and downlink time slot configuration information of the neighboring cell.

In the embodiment of the present invention, the base station may, but is not limited to, determine the blind detection related information of the terminal in the local area according to the following two methods: mode 1: The network side directly sends the uplink and downlink time slot configuration information of the neighboring area as blind detection related information to the terminal. The terminal determines the subframe type of the neighboring cell subframe according to the uplink and downlink timeslot configuration information of the neighboring cell, so as to determine which subframes need to be blindly checked, and which subframes can be used for blind detection, and the second mode is used by the network side according to the uplink and downlink of the neighboring cell. The slot configuration information respectively determines a subframe type of each subframe in the neighboring cell, where the subframe type may include: an uplink subframe, a downlink subframe, a special subframe, and an unknown type subframe, and the network side notifies each neighbor of the neighboring cell. The sub-frame type information of the frame, the terminal directly determines, according to the sub-frame type information of the neighboring sub-frame, that the sub-frame needs to be blindly detected (the unknown type of sub-frame needs to be blindly checked), and the terminal does not need to be blind in the second mode. By detecting the relevant information for processing, it is possible to directly determine which sub-frame needs to be blindly detected, thereby further saving the processing resources of the terminal. The following are introduced separately:

method one,

The base station determines that the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1 are blind detection related information, and directly informs the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1 of the terminal. Therefore, the terminal can determine, according to the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the SIB1, which subframe type of the subframe is an uplink subframe, and which subframe subframe types are downlink subframes, or which sub-frames. The subframe type of the frame is a special subframe, or the subframe type of the subframes cannot be determined, that is, the subframe type of the subframe is unknown, so that the terminal only needs to blindly check the subframe of the unknown type when performing blind detection. For the determined type of subframe, blind detection is not required, thereby reducing the complexity of terminal blind detection and saving terminal processing resources.

Manner 2: The TDD UL/DL configuration information in the neighboring cell SIB1 received by the base station The DL reference UL/DL configuration information is processed, and the processing result is notified to the local area terminal as blind detection related information.

For example, the base station may determine the subframe type of each subframe in the neighboring cell according to the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1, and use the neighboring area in a manner agreed with the terminal in advance. The subframe type of each subframe is sent to the terminal.

Specifically, the local base station may, but is not limited to, notify the subframe type of each subframe in the neighboring area of the local area by the following two methods:

Manner 1: The base station uses 2 bits to indicate the subframe type of the neighboring subframe. For example, the base station and the terminal agree in advance that "00" represents an unknown type of subframe, "01" represents a downlink subframe (D), "10" represents an uplink subframe (U), and "11" represents a special subframe (S). Each radio frame has a total of 10 subframes. Therefore, the base station uses a total of 20 bits to sequentially represent the subframe type of each subframe. For example, 01 11 10 10 10 01 11 10 10 10 indicates that the subframe types corresponding to the

subframe numbers

0, 1, 2, ..., 9 are: a downlink subframe, a special subframe, an uplink subframe, an uplink subframe, An uplink subframe, a downlink subframe, a special subframe, an uplink subframe, an uplink subframe, and an uplink subframe.

Manner 2: The base station and the terminal agree to use "D" to indicate a downlink subframe, "U" to indicate an uplink subframe, "S" to indicate a special subframe, and "F" to indicate an unknown type. The DSUUU DSUUU indicates that the subframe type corresponding to the subframe number is 0, 1, 2, ..., respectively: downlink subframe, special subframe, uplink subframe, uplink subframe, uplink subframe, downlink subframe, special Subframe, uplink subframe, uplink subframe, and uplink subframe.

After receiving the blind detection related information sent by the network side, the terminal performs blind detection according to the indication on the network side. Specifically, as shown in FIG. 4, a schematic flowchart of an implementation process of a method for performing blind detection of a network auxiliary terminal on a terminal side includes the following steps:

S41. The terminal receives the blind detection related information sent by the network side.

The information about the blind detection is determined by the network side according to the configuration information of the uplink and downlink timeslots of the neighboring cell sent by the neighboring cell. For the specific determination manner, refer to the method for blind detection of the network auxiliary terminal implemented by the network side, and details are not described herein.

S42. The terminal determines, according to the blind detection related information, an unknown type of neighboring subframe, and is in an unknown type. A blind check is performed on the neighboring sub-frame.

In the specific implementation, since the network side determines the blind detection related information in two ways, correspondingly, the network side notification terminal blind detection related information includes the following two types: 1) the blind detection related information is the TDD UL/ in the neighboring area SIB1. DL configuration information and DL reference UL/DL configuration information; 2) Blind detection related information is subframe type information of each subframe of the neighboring cell determined by the network side.

In a specific implementation, if the blind detection related information notified by the network side is the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1, the terminal first needs to be based on the TDD UL/DL configuration in the neighboring area SIB1. The information and the DL reference UL/DL configuration information determine a subframe type of each neighboring cell subframe, where the subframe type includes an uplink subframe, a downlink subframe, a special subframe, and an unknown type subframe, and the terminal is directed to the neighbor of the unknown type. The zone subframe is blindly checked to determine the subframe type of the subframe, and if it is a downlink subframe, interference cancellation is required. If it is an uplink subframe or a special subframe, interference cancellation is not required. If the network side informs the terminal that the blind detection related information is the subframe type information of each subframe in the neighboring cell, the terminal directly determines the neighboring type subframe of the unknown type according to the subframe type information of each subframe of the neighboring cell, and is unknown. A blind detection may be performed on the neighboring subframe of the type to determine the subframe type of the subframe, and if it is a downlink subframe, interference cancellation is required.

For a better understanding of the embodiments of the present invention, the specific implementation process of the embodiments of the present invention will be described below with reference to specific implementations.

As shown in FIG. 5a, it is a schematic diagram of uplink and downlink configuration information of the first neighboring cell. The neighboring cell base station notifies the uplink and downlink timeslot configuration information of the neighboring cell of the base station as follows: "The TDD UL/DL configuration in SIB1 is config#1, and the DL reference UL/DL configuration of the neighboring cell is config#2".

For example, the base station directly informs the neighboring time slot configuration information of the neighboring cell of the terminal, and the base station notifies the local area UE: “The TDD UL/DL configuration in the SIB1 of the neighboring cell is config#1, and the DL reference UL/DL configuration of the neighboring cell. For config#2". After the terminal receives the uplink and downlink timeslot configuration information, the downlink subframe in the TDD UL/DL configuration in the SIB1 is fixed, and the uplink subframe of the DL reference UL/DL configuration is fixed. Therefore, the neighboring base station When the uplink and downlink slot ratios are dynamically adjusted for the terminals in the neighboring area, only the TDD UL/DL in SIB1 can be satisfied. The downlink time slot in the configuration is fixed and the uplink time slot fixed in the DL reference UL/DL configuration is selected in the slot configuration, that is, the #4, #9 subframe is the downlink subframe and the #7 subframe is the uplink subframe. According to Table 1, it can be seen that only the configuration #1 and the configuration #2 (two configurations in the black dotted frame in FIG. 5a) satisfying the condition, that is, even if the neighboring base station is a neighboring terminal Dynamically adjust the uplink and downlink time slot ratio, and only select two configurations of configuration #1 and configuration #2. Compare configuration #1 and configuration #2, the subframe numbers are #4, #6, #7, and #9. The subframe type of the subframe is determined, where #4 is a downlink subframe, #6 is a special subframe, #7 is an uplink subframe, and #9 is a downlink subframe, and #3 subframe and #8子The frame may be an uplink subframe or a downlink subframe. Therefore, the terminal needs to perform blind detection on the #3 subframe and the #8 subframe to determine whether it is a downlink subframe, thereby greatly reducing terminal blindness. The complexity of the inspection saves the terminal processing resources.

Taking the subframe type of the neighboring cell subframe in the local area as an example, the base station first determines the subframe type corresponding to each subframe in the neighboring cell, which is similar to the above description, because in the TDD UL/DL configuration in SIB1. The downlink subframe is fixed, and the uplink subframe of the DL reference UL/DL configuration is fixed. Therefore, when the neighboring base station dynamically adjusts the uplink and downlink slot ratios for the terminal in the neighboring cell, it can only satisfy the SIB1. The downlink time slot in the TDD UL/DL configuration is selected in the slot configuration in which the uplink time slot of the DL reference UL/DL configuration is fixed, that is, the subframes satisfying #4 and #9 are downlink subframes, and #7 is The time slot configuration of the uplink subframe is selected. According to Table 1, only configuration #1 and configuration #2 (two configurations in the black dotted frame in FIG. 5a) satisfy the condition, that is, even if the neighboring base station is adjacent The zone terminal dynamically adjusts the uplink and downlink slot ratios, and only two configurations of configuration #1 and configuration #2 can be selected. Comparing configuration #1 and configuration #2, the subframe numbers are #4, #6, #7, and The subframe type of the subframe of #9 is determined, #4 is the downlink subframe, and #6 is the special The special subframe, #7 is the uplink subframe, and #9 is the downlink subframe, and the #3 subframe and the #8 subframe may be the uplink subframe or the downlink subframe. Therefore, the base station may use any of the following methods. The subframe type information "01 11 10 00 01 01 11 10 00 01" or "DSUFDDSUFD" of the neighboring cell subframe is notified. Specifically, the base station may carry the subframe type information of the neighboring subframe in the signaling that interacts with the terminal. The terminal performs blind detection on the #3 subframe and the #8 subframe according to the subframe type information of the neighboring cell subframe notified by the base station to determine whether it is a downlink subframe.

As shown in FIG. 5b, it is a schematic diagram of the uplink and downlink configuration information of the second neighboring cell. The neighboring cell base station notifies the uplink and downlink timeslot configuration information of the neighboring cell of the base station as follows: "The TDD UL/DL configuration in SIB1 is config#0, and the DL reference UL/DL configuration of the neighboring cell is config#2".

For example, the base station directly informs the neighboring time slot configuration information of the neighboring cell of the terminal, and the base station notifies the local area UE that: “the TDD UL/DL configuration in the SIB1 of the neighboring cell is config#0, and the DL reference UL/DL configuration of the neighboring cell. For config#2". After the terminal receives the uplink and downlink timeslot configuration information, the downlink subframe in the TDD UL/DL configuration in the SIB1 is fixed, and the uplink subframe of the DL reference UL/DL configuration is fixed. Therefore, the neighboring base station When the uplink and downlink time slot ratios are dynamically adjusted for the intra-terminal terminals, only the time slots in which the downlink time slots in the TDD UL/DL configuration in the SIB1 are fixed and the uplink time slots of the DL reference UL/DL configuration are fixed can be used. The configuration is selected, that is, the #7 subframe is selected as the slot configuration of the uplink subframe. According to Table 1, the configurations #0, #1, #2, and #6 satisfying the condition are met (the black dotted frame in FIG. 5b) The four configurations in the middle, that is, even if the neighboring base station dynamically adjusts the uplink and downlink time slot ratio for the neighboring terminal, it can only be selected in configuration #0, configuration #1, configuration #2, and configuration #6, and the configuration is compared. #0, Configuration #1, Configuration #2, and Configuration #6 show that the subframe type of the subframe with subframe numbers #6 and #7 is determined, #6 is a special subframe, and #7 is an uplink subframe. The #3 subframe, #4 subframe, #8 subframe, and #9 subframe may be either an uplink subframe or a downlink subframe. Therefore, the terminal needs to perform blind check on the #3 subframe, the #4 subframe, the #8 subframe, and the #9 subframe to determine whether it is a downlink subframe, and it is required to blindly check 6 subframes, which is lower than the terminal. The complexity of terminal blind detection saves terminal processing resources.

Taking the subframe type of the neighboring cell subframe in the local area as an example, the base station first determines the subframe type corresponding to each subframe in the neighboring cell, which is similar to the above description, because in the TDD UL/DL configuration in SIB1. The downlink subframe is fixed, and the uplink subframe of the DL reference UL/DL configuration is fixed. Therefore, when the neighboring base station dynamically adjusts the uplink and downlink slot ratios for the terminal in the neighboring cell, it can only satisfy the SIB1. The downlink time slot in the TDD UL/DL configuration is selected in the slot configuration in which the uplink time slot of the DL reference UL/DL configuration is fixed, that is, the time slot configuration in which the #7 subframe is an uplink subframe is selected, according to the table. 1 It can be seen that there are configurations #0, #1, #2, and #6 that satisfy this condition (four configurations in the black dotted line frame in Fig. 5b), that is, even if the neighboring base The station dynamically adjusts the uplink and downlink time slot ratios for the neighboring cell terminals, and can only select among configuration #0, configuration #1, configuration #2, and configuration #6, compare configuration #0, configuration #1, configuration #2, and configuration. #6 It can be seen that the subframe type of the subframe with subframe numbers #6 and #7 is determined, #6 is a special subframe, #7 is an uplink subframe, and #3 subframe, #4 subframe, # The 8 subframes and the #9 subframes may be either an uplink subframe or a downlink subframe. Therefore, the base station may notify the subframe type information “01111000000111100000” or “DSUFFDSUFF” of the neighbor neighbor subframe by using any of the following methods. Specifically, the base station may carry the subframe type information of the neighboring subframe in the signaling that interacts with the terminal. The terminal performs blind detection on the #3 subframe, the #4 subframe, the #8 subframe, and the #9 subframe according to the subframe type information of the neighboring cell subframe notified by the base station, to determine whether each subframe is a downlink subframe. .

As shown in FIG. 5c, it is a schematic diagram of the uplink and downlink configuration information of the third neighboring cell. The neighboring cell base station notifies the uplink and downlink timeslot configuration information of the neighboring cell of the base station as follows: "The TDD UL/DL configuration in SIB1 is config#0, and the DL reference UL/DL configuration of the neighboring cell is config#4".

For example, the base station directly informs the neighboring time slot configuration information of the neighboring cell of the terminal, and the base station notifies the local area UE that: “the TDD UL/DL configuration in the SIB1 of the neighboring cell is config#0, and the DL reference UL/DL configuration of the neighboring cell. For config#4". After the terminal receives the uplink and downlink timeslot configuration information, the downlink subframe in the TDD UL/DL configuration in the SIB1 is fixed, and the uplink subframe of the DL reference UL/DL configuration is fixed. Therefore, the neighboring base station When the uplink and downlink slot ratios are dynamically adjusted for the terminal in the neighboring cell, only when the downlink time slot in the TDD UL/DL configuration in the SIB1 is fixed and the uplink time slot of the DL reference UL/DL configuration is fixed The gap configuration is selected, that is, the #3 and #4 subframes are selected in the slot configuration of the uplink subframe, and according to Table 1, the configurations #0, #1, #3, #4, and #6 satisfying the condition are known. (The five configurations in the black dotted frame in Figure 5b), that is, even if the neighboring base station dynamically adjusts the uplink and downlink time slot ratio for the neighboring cell terminal, it can only be configured in #0, configuration #1, configuration #3, and configuration. In #4 and configuration #6, compare configuration #0, configuration #1, configuration #3, configuration #4, and configuration #6, the subframe type of the subframe with the subframe number #3 is determined, #3 It is an uplink subframe, and the #4 subframe, the #6 subframe, the #7 subframe, the #8 subframe, and the #9 subframe may be uplink subframes. It may also be a downlink subframe. Therefore, the terminal needs to perform blind check on the #4 subframe, the #6 subframe, the #7 subframe, the #8 subframe, and the #9 subframe to determine whether it is a downlink subframe, Therefore, compared with the terminal, it is required to blindly check 6 subframes, which reduces the complexity of terminal blind detection and saves terminal processing resources.

Taking the subframe type of the neighboring cell subframe in the local area as an example, the base station first determines the subframe type corresponding to each subframe in the neighboring cell, which is similar to the above description, because in the TDD UL/DL configuration in SIB1. The downlink subframe is fixed, and the uplink subframe of the DL reference UL/DL configuration is fixed. Therefore, when the neighboring base station dynamically adjusts the uplink and downlink slot ratios for the terminal in the neighboring cell, it can only satisfy the SIB1. The downlink time slot in the TDD UL/DL configuration is selected in the slot configuration in which the uplink time slot of the DL reference UL/DL configuration is fixed, that is, the time slot configuration in which the #3 and #4 subframes are uplink subframes is selected. According to Table 1, it can be seen that there are configurations #0, #1, #3, #4, and #6 (five configurations in the black dotted line frame in Fig. 5b) that satisfy the condition, that is, even if the neighboring base station is the neighboring cell terminal. Dynamically adjusting the uplink and downlink time slot ratio can only be selected in configuration #0, configuration #1, configuration #3, configuration #4, and configuration #6, compare configuration #0, configuration #1, configuration #3, configuration# 4 and configuration #6, it can be known that the subframe type of the subframe with the subframe number #3 is determined, and #3 is The sub-frame, and the #4 sub-frame, the #6 sub-frame, the #7 sub-frame, the #8 sub-frame, and the #9 sub-frame may be either an uplink subframe or a downlink subframe, and therefore, the base station may use any of the following The mode notifies the subframe type information "01 11 10 10 00 01 00 00 00 00" or "DSUUFDFFFF" of the neighbor cell subframe. Specifically, the base station may carry the subframe type information of the neighboring subframe in the signaling that interacts with the terminal. The terminal performs blind detection on the #4 subframe, the #6 subframe, the #7 subframe, the #8 subframe, and the #9 subframe according to the subframe type of the neighbor subframe notified by the base station, to determine whether each subframe is It is a downlink subframe.

In the method for blind detection of the network auxiliary terminal provided by the embodiment of the present invention, after receiving the uplink and downlink time slot configuration information of the neighboring cell sent by the neighboring base station, the base station may directly send the information to the terminal, and the terminal determines, according to the determination, which blind detection is needed. The subframe may also first determine, by the base station, which subframe configurations are determined, which subframe types are indeterminate, and notify the subframe type of each subframe, and the terminal only needs to be uncertain for the subframe type. The sub-frame can be blindly checked, which greatly reduces the complexity of the blind detection of the terminal and saves the processing resources of the terminal.

Based on the same inventive concept, the device and device for network-assisted terminal blind detection implemented by the network side and the device and device for blind detection of the network auxiliary terminal implemented by the terminal side are respectively provided in the embodiment of the present invention. The system for blind detection of the network and the auxiliary terminal is similar to the method for solving the problem by the device, the device and the system, and the method for blind detection of the network auxiliary terminal implemented by the network side and the method for blind detection of the network auxiliary terminal implemented by the terminal side. The implementation of the device, the device or the system can be referred to the implementation of the method, and the details are not repeated here.

FIG. 6 is a schematic structural diagram of an apparatus for blind detection of a first network auxiliary terminal according to an embodiment of the present invention, including:

The receiving unit 61 is configured to receive uplink and downlink time slot configuration information of the neighboring cell sent by the neighboring base station;

The notification unit 62 is configured to notify the terminal of the local area to blindly check related information, where the blind detection related information is determined according to the uplink and downlink time slot configuration information of the neighboring area.

In the specific implementation, the blind detection related information is the uplink and downlink time slot configuration information of the neighboring area, and the uplink and downlink time slot configuration information of the neighboring area includes the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1.

Based on this, the notification unit 62 can be used to notify the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring cell SIB1 of the local area.

In a specific implementation, the apparatus for blind detection of the first network auxiliary terminal provided by the embodiment of the present invention may further include: a determining unit, where: the determining unit may be configured to use TDD UL/DL configuration information in the neighboring area SIB1 and DL reference UL/DL configuration information, respectively determining a subframe type of each subframe of the neighboring cell; and determining subframe type information of each subframe of the neighboring cell as the blind detection related information; the notification unit 62 may be used The subframe type of each subframe of the neighboring cell determined by the terminal in the local area is notified in a manner agreed in advance with the terminal of the local area.

For the convenience of description, the above parts are respectively divided into modules (or units) according to functions. Of course, the functions of the various modules (or units) may be implemented in one or more software or hardware in the practice of the invention.

In a specific implementation, the device for blind detection of the first type of network auxiliary terminal may be set in the base station.

As shown in FIG. 7, the device for blind detection of a second network auxiliary terminal according to an embodiment of the present invention includes:

The receiving unit 71 is configured to receive blind detection related information sent by the network side;

The information about the blind detection is determined by the network side according to the uplink and downlink time slot configuration information of the neighboring cell sent by the neighboring cell base station.

The blind detection unit 72 is configured to determine an adjacent type of neighboring subframe according to the blind detection related information, and perform blind detection on an adjacent type of adjacent subframe.

The uplink and downlink timeslot configuration information of the neighboring cell is the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1.

If the blind detection related information received by the terminal is the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1, the blind detection unit 72 may be configured to use the TDD UL/DL configuration information in the neighboring area SIB1. And the DL reference UL/DL configuration information determines an adjacent type of neighboring subframe; and performs blind detection on the determined adjacent type of neighboring subframe.

Preferably, the blind detection related information may further be a subframe type information of each subframe of the neighboring cell determined by the network side according to the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1. After the receiving unit 71 receives the blind detection related information, the blind detecting unit 72 may be configured to determine, according to the subframe type information of each subframe of the neighboring cell, the neighboring subframe of the unknown type, and perform the subframe on the neighboring subframe of the unknown type. Blind check to determine if it is a downlink subframe.

In a specific implementation, the device for blind detection of the first type of network auxiliary terminal may be set in the terminal.

As shown in FIG. 8, the system for blind detection of a network auxiliary terminal according to an embodiment of the present invention includes a base station 81 and a terminal 82. The base station 81 is provided with the above-mentioned first network auxiliary terminal blind detection device, and is set in the terminal 82. There is a second type of network auxiliary terminal blind detection device.

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

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

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

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

Although the preferred embodiment of the invention has been described, it will be apparent to those skilled in the < Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

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

Claims

A method for blind detection of a network auxiliary terminal, comprising:

Receiving uplink and downlink time slot configuration information of the neighboring cell sent by the neighboring base station;

The terminal is notified of the blind detection related information, and the blind detection related information is determined according to the uplink and downlink time slot configuration information of the neighboring area.
The method according to claim 1, wherein the uplink and downlink time slot configuration information of the neighboring cell comprises a time division duplex uplink and downlink time slot configuration TDD UL/DL configuration information in the neighbor system information block SIB1 and is used for small The downlink enhanced uplink/downlink time slot of the cell enhanced eIMTA configures DL reference UL/DL configuration information.
The method according to claim 2, wherein said blind detection related information is TDD UL/DL configuration information and DL reference UL/DL configuration information in said neighboring area SIB1;

Notify the terminal of blind detection related information in this area, including:

The TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring cell SIB1 of the local area are notified.
The method of claim 2 wherein the blind detection related information is determined according to the following method:

Determining, according to the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring cell SIB1, a subframe type of each subframe of the neighboring cell;

Determining, by the subframe type information of each subframe of the neighboring cell, the blind detection related information;

Notify the terminal of blind detection related information in this area, including:

The subframe type of each subframe of the neighboring cell determined by the terminal in the local area is notified in a manner agreed in advance with the terminal in the local area.
A device for blind detection of a network auxiliary terminal, comprising:

a receiving unit, configured to receive uplink and downlink time slot configuration information of a neighboring cell sent by a neighboring base station;

a notification unit, configured to notify the terminal of the local area to blindly check related information, where the blind detection related information is based The neighboring area uplink and downlink time slot configuration information is determined.
The device according to claim 5, wherein the blind detection related information is uplink and downlink time slot configuration information of the neighboring cell, and the uplink and downlink time slot configuration information of the neighboring cell includes a neighboring system information block SIB1. Time division duplex uplink and downlink time slot configuration TDD UL/DL configuration information and downlink reference uplink and downlink time slot configuration DL reference UL/DL configuration information for small cell enhanced eIMTA;

The notification unit is specifically configured to notify the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1 of the local area.
The apparatus according to claim 5, wherein the neighboring uplink and downlink time slot configuration information comprises TDD UL/DL configuration information and DL reference UL/DL configuration information in the neighboring area SIB1;

The device further includes a determining unit, wherein:

The determining unit is configured to determine, according to the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring cell SIB1, a subframe type of each subframe in the neighboring cell, and determine each sub-zone of the neighboring cell. The subframe type information of the frame is the blind check related information;

The notification unit is specifically configured to notify the terminal in the local area to determine the subframe type of each subframe of the neighboring cell by using a manner agreed in advance with the local area terminal.
A base station comprising the apparatus of claim 5, 6 or 7.
A method for blind detection of a network auxiliary terminal, comprising:

Receiving blind detection related information sent by the network side;

Determining an unknown type of neighboring cell subframe according to the blind detection related information, and performing blind detection on an unknown type of neighboring sub-frame.
The method according to claim 9, wherein the blind detection related information is determined by the network side according to the neighboring uplink and downlink time slot configuration information sent by the neighboring base station.
The method according to claim 10, wherein the neighboring uplink and downlink time slot configuration information is TDD UL/DL configuration information and DL reference UL/DL configuration information in the neighboring area SIB1; and the blind detection related information TDD UL/DL in the neighboring area SIB1 Configuration information and DL reference UL/DL configuration information;

Determining an adjacent type of neighboring subframe according to the blind detection related information, including:

The neighboring subframe of the unknown type is determined according to the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1.
The method according to claim 10, wherein the neighboring uplink and downlink time slot configuration information is TDD UL/DL configuration information and DL reference UL/DL configuration information in the neighboring area SIB1; and the blind detection related information Subframe type information of each subframe of the neighboring cell determined by the network side according to the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring cell SIB1;

Determining an adjacent type of neighboring subframe according to the blind detection related information, including:

The neighboring subframe of the unknown type is determined according to the subframe type information of each subframe of the neighboring cell.
A device for blind detection of a network auxiliary terminal, comprising:

a receiving unit, configured to receive blind detection related information sent by the network side;

And a blind detection unit, configured to determine an adjacent type of neighboring subframe according to the blind detection related information, and perform blind detection on an unknown type of neighboring subframe.
The device according to claim 13, wherein the blind detection related information is determined by the network side according to the uplink and downlink timeslot configuration information of the neighboring cell sent by the neighboring cell base station, and the uplink and downlink time slots of the neighboring cell The configuration information is TDD UL/DL configuration information and DL reference UL/DL configuration information in the neighboring area SIB1; the blind detection related information is TDD UL/DL configuration information and DL reference UL/DL configuration in the neighboring area SIB1. Information;

The blind detection unit is specifically configured to determine an adjacent type of neighbor subframe according to the TDD UL/DL configuration information and the DL reference UL/DL configuration information in the neighboring area SIB1.
The device according to claim 13, wherein the blind detection related information is determined by the network side according to the uplink and downlink timeslot configuration information of the neighboring cell sent by the neighboring cell base station, and the uplink and downlink time slots of the neighboring cell The configuration information is TDD UL/DL configuration information and DL reference UL/DL configuration information in the neighboring area SIB1; the blind detection related information is the network side according to the The TDD UL/DL configuration information in the neighboring area SIB1 and the DL reference UL/DL configuration information determine the subframe type information of each subframe of the neighboring cell;

The blind detection unit is specifically configured to determine a neighboring subframe of an unknown type according to subframe type information of each subframe in the neighboring cell.
A terminal comprising the apparatus of claim 13, 14 or 15.
A system for network-assisted terminal blind detection, comprising: a base station and a terminal, wherein the base station is provided with the device according to claim 5, 6 or 7, wherein the terminal is provided with claims 13 and 14 Or 15 said device.