WO2014169445A1

WO2014169445A1 - Information acquisition method, evolved node b and user equipment

Info

Publication number: WO2014169445A1
Application number: PCT/CN2013/074302
Authority: WO
Inventors: 张雯; 吕永霞
Original assignee: 华为技术有限公司
Priority date: 2013-04-17
Filing date: 2013-04-17
Publication date: 2014-10-23
Also published as: CN104509016A

Abstract

Provided are an information acquisition method, evolved node B (eNB) and user equipment (UE), the method comprising: a first eNB receives via an X2 interface the interleaver information of a second eNB corresponding cell transmitted by a second eNB; conducting iterative detection according to the interleaver information of the second eNB corresponding cell and the stored interleaver information of the first eNB corresponding cell to acquire the information transmitted to the first eNB by a UE in the first eNB corresponding cell; and/or, transmitting the interleaver information of the second eNB corresponding cell to the UE in the first eNB corresponding cell; and the UE in the first eNB corresponding cell conducts iterative detection according to the interleaver information of the second eNB corresponding cell and the stored interleaver information of the first eNB corresponding cell to acquire the information transmitted by the first eNB to the UE in the first eNB corresponding cell. The information acquisition method, eNB and UE of the present invention improves accuracy of the acquired information.

Description

Information acquisition method, base station and user equipment

TECHNICAL FIELD Embodiments of the present invention relate to mobile communication technologies, and in particular, to an information acquisition method and a base station.

(Evolved Node B, referred to as eNB) and User Equipment (UE). Background technique

With the development of communication technology, based on Code Division Multiple Access (CDMA), an interleaved multiple access (Inter-ave Division Multiple Access, IDMA) multiplex access scheme is proposed. It features a chip-level interleaver uniquely identified by the user to distinguish between users and channels. Compared with the traditional CDMA multiple access system, the IDMA system uses iterative multi-user detection to have better anti-multiple-access interference performance. IDMA and Orthogonal Frequency Division Multiplexing (OFDM) / Orthogonal Frequency Division Multiple Access (OFDMA) / Single-Carrier Frequency Division Multiple Access ( Single-carrier Frequency Division Multiple Access) , referred to as SC-FDMA for short, combines to form a new multiple access method with performance gain. Therefore, IDMA can be applied to existing Long Term Evolution (LTE) systems to increase system capacity.

In an LTE system using IDMA, different interleavers are used to distinguish users on the same time-frequency resource. Currently, when acquiring information, the eNB and the UE in the IDMA system perform iterative detection according to the interleaver information and modulation and coding information of the UE in the cell to which the UE belongs, and obtain information corresponding to each UE. According to the iterative detection theory, only the joint iteration detection of all UEs sharing the time-frequency resources can obtain accurate detection results, and in the IDMA system, there are UEs belonging to different cells and sharing time-frequency resources, so the above existing information is used. The acquisition method has low accuracy in obtaining information. Summary of the invention

A first aspect of the present invention provides an information acquisition method for solving the defects in the prior art and improving the accuracy of obtaining information. Another aspect of the present invention is to provide an eNB for solving the defects in the prior art and improving the accuracy of obtaining information.

Yet another aspect of the present invention is to provide a U E for solving the deficiencies in the prior art and improving the accuracy of obtaining information.

A first aspect of the present invention provides a method for acquiring information, including:

The first base station eNB receives the interleaver information of the second eNB corresponding cell sent by the second eNB through the X2 interface;

The first eNB performs iterative detection according to the interleaver information of the second eNB corresponding cell and the stored interleaver information of the corresponding cell of the first eNB, and acquires the user equipment UE in the corresponding cell of the first eNB and sends the first to the first eNB. The information of the eNB; and/or, the first eNB sends the interleaver information of the second eNB corresponding cell to the UE in the first eNB corresponding cell, so that the UE in the corresponding eNB of the first eNB is based on The second eNB performs iterative detection on the interleaver information of the cell and the stored interleaver information of the corresponding cell of the first eNB, and acquires information that is sent by the first eNB to the UE in the cell corresponding to the first eNB.

The foregoing aspect, and any possible implementation manner, further provide an implementation manner, further including:

Transmitting, by the first eNB, the interleaver information of the first eNB corresponding cell to the second eNB by using an X2 interface, so that the second eNB is configured according to the interleaver information of the first eNB corresponding cell and the stored Performing iterative detection on the interleaver information of the cell corresponding to the second eNB, acquiring information sent by the UE in the cell corresponding to the second eNB to the second eNB, and/or, so that the second eNB is to the second eNB The UE in the corresponding cell sends the interleaver information of the cell corresponding to the eNB, and the UE in the cell corresponding to the second eNB is interleaved according to the interleaver information of the cell corresponding to the first eNB and the cell corresponding to the second eNB. The device information is iteratively detected, and the information sent by the second eNB to the UE in the corresponding cell of the second eNB is obtained.

And the first base station eNB receives, by using the X2 interface, the iterative detection reference information of the second eNB corresponding cell that is sent by the second eNB, as described above.

The iterative detection by the first eNB according to the interleaver information of the second eNB corresponding cell and the stored interleaver information of the first eNB corresponding cell includes: the first eNB according to the The iterative detection reference information of the second eNB corresponding cell, the interleaver information of the second eNB corresponding cell, and the stored interleaver information of the corresponding cell of the first eNB are iteratively detected; and/or the method further includes: The first eNB sends the iterative detection reference information of the second eNB corresponding cell to the UE in the first eNB corresponding cell, so that the UE in the first eNB corresponding cell is according to the second eNB corresponding cell The iterative detection reference information, the interleaver information of the second eNB corresponding cell, and the stored interleaver information of the corresponding cell of the first eNB are iteratively detected, and the first eNB is sent to the UE in the corresponding cell of the eNB. Information.

The first eNB sends the iterative detection reference information of the cell corresponding to the eNB to the second eNB by using an X2 interface, so that the second eNB detects the reference information according to the iteration of the cell corresponding to the first eNB. Iteratively detecting the interleaver information of the eNB corresponding cell and the stored interleaver information of the second eNB corresponding cell, and acquiring information sent by the UE in the second eNB corresponding cell to the second eNB; and/or And the second eNB sends the iterative detection reference information of the first eNB corresponding cell to the UE in the second eNB corresponding cell, where the UE in the second eNB corresponding cell corresponds to the first eNB The iterative detection reference information of the cell, the interleaver information of the corresponding cell of the first eNB, and the interleaver information of the corresponding cell of the second eNB are iteratively detected, and the second eNB is sent to the corresponding cell of the second eNB. UE information.

The aspect as described above and any possible implementation manner further provide an implementation manner, where the iterative detection reference information includes a combination of any one or more of the following information:

Uplink and downlink identification information, scheduling subframe information, resource allocation information, modulation and coding scheme MCS information, demodulation reference signal information, cell radio network temporary identifier C-RNTI, redundancy version information.

Another aspect of the present invention provides a method for acquiring information, including:

The user equipment UE in the corresponding cell of the first base station eNB receives the interleaver information of the second eNB corresponding cell sent by the first eNB, and the interleaver information of the second eNB corresponding cell is sent by the second eNB through the X2 interface. For the first eNB;

Interleaving the UE in the corresponding eNB according to the second eNB according to the second eNB The device information and the stored interleaver information of the corresponding cell of the first eNB are iteratively detected, and the information sent by the first eNB to the UE in the corresponding cell of the first eNB is obtained.

The foregoing aspect and any possible implementation manner further provide an implementation manner, further including: receiving, by the UE in the first eNB, a iterative detection reference of the second eNB corresponding cell sent by the first eNB Information, the iterative detection reference information of the second eNB corresponding to the cell is sent by the second eNB to the eNB through the X2 interface;

The iterative detection by the UE in the first eNB corresponding cell according to the interleaver information of the second eNB corresponding cell and the stored interleaver information of the first eNB corresponding cell includes: the UE in the corresponding eNB corresponding cell The second eNB performs iterative detection on the iterative detection reference information of the cell, the interleaver information of the cell corresponding to the second eNB, and the interleaver information of the corresponding cell of the first eNB.

Another aspect of the present invention provides a base station eNB, where the eNB is a first eNB, and the eNB includes:

a receiving unit, configured to receive, by using an X2 interface, interleaver information of a second eNB corresponding cell sent by the second eNB;

An iterative detection unit, configured to perform iterative detection according to the interleaver information of the corresponding cell of the second eNB and the interleaver information of the corresponding cell of the first eNB, and obtain the user equipment UE in the corresponding cell of the first eNB, and send the Information of an eNB;

a first sending unit, configured to send the interleaver information of the second eNB corresponding cell to the UE in the first eNB corresponding cell, so that the UE in the first eNB corresponding cell corresponds to the second eNB The interleaver information of the cell and the stored interleaver information of the corresponding cell of the first eNB are iteratively detected, and the information sent by the first eNB to the UE in the corresponding cell of the first eNB is obtained.

The foregoing aspect, and any possible implementation manner, further provide an implementation manner, further including: a second sending unit, configured to send interleaver information of the first eNB corresponding cell to the second eNB by using an X2 interface, so that the second eNB is configured according to interleaver information and storage of the first eNB corresponding cell The second eNB performs iterative detection on the interleaver information of the cell, and acquires information that the UE in the second eNB corresponding cell sends to the second eNB; and/or, so that the second eNB goes to the The UE in the cell corresponding to the second eNB sends the interleaver information of the cell corresponding to the first eNB, and the UE in the cell corresponding to the second eNB according to the interleaver information of the cell corresponding to the first eNB and the stored cell corresponding to the second eNB The interleaver information is iteratively detected, and the information sent by the second eNB to the UE in the corresponding cell of the second eNB is obtained.

The above-mentioned aspect and any possible implementation manner further provide an implementation manner, where the receiving unit is further configured to receive, by using an X2 interface, the iterative detection reference information of the second eNB corresponding cell that is sent by the second eNB;

The iterative detection unit is configured to perform iterative detection according to the iterative detection reference information of the second eNB corresponding cell, the interleaver information of the second eNB corresponding cell, and the stored interleaver information of the first eNB corresponding cell, and obtain And the first sending unit is further configured to: send, by the first eNB, the information sent by the user equipment UE in the cell to the first eNB, and/or the first sending unit is further configured to send the second to the UE in the cell corresponding to the “eNB” The eNB corresponds to the iterative detection reference information of the cell, so that the UE in the cell corresponding to the first eNB according to the iterative detection reference information of the second eNB corresponding cell, the interleaver information of the second eNB corresponding cell, and the stored An eNB performs an iterative detection on the interleaver information of the corresponding eNB, and acquires information about the UE sent by the first eNB to the corresponding cell in the first eNB.

The foregoing aspect and any possible implementation manner further provide an implementation manner, where the second sending unit is further configured to send, by using an X2 interface, an iterative detection reference of the first eNB corresponding cell to the second eNB. And the information, so that the second eNB performs iterative detection according to the iterative detection reference information of the first eNB corresponding cell, the interleaver information of the first eNB corresponding cell, and the stored interleaver information of the second eNB corresponding cell, Acquiring information sent by the UE in the second eNB corresponding cell to the second eNB; and/or, so that the second eNB sends the first eNB corresponding to the UE in the second eNB corresponding cell Iterative detection reference information of the cell, the UE in the second eNB corresponding cell according to the iterative detection reference information of the cell corresponding to the eNB, the interleaver information of the cell corresponding to the eNB, and the stored The interleaver information of the cell corresponding to the second eNB is iteratively detected, and the information sent by the second eNB to the UE in the cell corresponding to the second eNB is obtained.

Another aspect of the present invention provides a user equipment UE, where the UE is a UE in a cell corresponding to the first base station eNB, and the UE includes:

a receiving unit, configured to receive interleaver information of a second eNB corresponding to the first eNB, where the interleaver information of the second eNB is sent by the second eNB to the eNB through the X2 interface;

An iterative detection unit, configured to perform iterative detection according to the interleaver information of the second eNB corresponding cell and the stored interleaver information of the first eNB corresponding cell, and obtain the first eNB to send to the corresponding eNB in the first eNB UE information.

The above-mentioned aspect and any possible implementation manner further provide an implementation manner, where the receiving unit is further configured to receive iterative detection reference information of a second eNB corresponding cell that is sent by the first eNB, where the second The iterative detection reference information of the eNB corresponding cell is sent by the second eNB to the eNB through the X2 interface;

The iterative detection unit is configured to perform iterative detection according to the iterative detection reference information of the second eNB corresponding cell, the interleaver information of the second eNB corresponding cell, and the stored interleaver information of the first eNB corresponding cell.

a receiver, configured to receive, by using an X2 interface, a second eNB corresponding cell sent by the second eNB Interleaver information;

The processor is configured to perform iterative detection according to the interleaver information of the second eNB corresponding cell and the stored interleaver information of the first eNB corresponding cell, and obtain the user equipment UE in the corresponding cell of the first eNB, and send the first Information of the eNB;

a first transmitter, configured to send interleaver information of the second eNB corresponding cell to the UE in the first eNB corresponding cell, so that the UE in the first eNB corresponding cell corresponds to the second eNB The interleaver information of the cell and the stored interleaver information of the corresponding cell of the first eNB are iteratively detected, and the information sent by the first eNB to the UE in the corresponding cell of the first eNB is obtained;

And a bus, configured to connect the receiver, the processor, and the first transmitter, and the receiver, the processor, and the first transmitter complete communication with each other through the bus.

a second transmitter, configured to send interleaver information of the first eNB corresponding cell to the second eNB by using an X2 interface, so that the second eNB is configured according to interleaver information and storage of the first eNB corresponding cell The second eNB performs iterative detection on the interleaver information of the cell, and acquires information that the UE in the second eNB corresponding cell sends to the second eNB; and/or, so that the second eNB goes to the The UE in the cell corresponding to the second eNB sends the interleaver information of the cell corresponding to the first eNB, and the UE in the cell corresponding to the second eNB according to the interleaver information of the cell corresponding to the first eNB and the stored cell corresponding to the second eNB The interleaver information is iteratively detected, and the information sent by the second eNB to the UE in the corresponding cell of the second eNB is obtained.

The foregoing aspect and any possible implementation manner further provide an implementation manner, where the receiver is further configured to receive, by using an X2 interface, the iterative detection reference information of the second eNB corresponding cell that is sent by the second eNB;

The processor is specifically configured to perform iterative detection according to the iterative detection reference information of the second eNB corresponding cell, the interleaver information of the second eNB corresponding cell, and the stored interleaver information of the first eNB corresponding cell, and obtain the first And the information that is sent by the user equipment UE in the eNB to the first eNB, and/or the first transmitter is further configured to send the second eNB to the UE in the first eNB corresponding cell Iterative detection reference information of the corresponding cell, so that The UE in the cell corresponding to the first eNB performs iterative detection according to the iterative detection reference information of the cell corresponding to the second eNB, the interleaver information of the cell corresponding to the second eNB, and the interleaver information of the corresponding cell of the first eNB. And acquiring information that is sent by the first eNB to the UE in the corresponding cell of the first eNB.

The foregoing aspect, and any possible implementation manner, further provide an implementation manner, where the second transmitter is further configured to send an iterative detection reference of the first eNB corresponding cell to the second eNB by using an X2 interface. And the information, so that the second eNB performs iterative detection according to the iterative detection reference information of the first eNB corresponding cell, the interleaver information of the first eNB corresponding cell, and the stored interleaver information of the second eNB corresponding cell, Acquiring information sent by the UE in the second eNB corresponding cell to the second eNB; and/or, so that the second eNB sends the first eNB corresponding to the UE in the second eNB corresponding cell Iterative detection reference information of the cell, the UE in the second eNB corresponding cell according to the iterative detection reference information of the cell corresponding to the eNB, the interleaver information of the cell corresponding to the eNB, and the stored cell corresponding to the second eNB The interleaver information is iteratively detected, and the information sent by the second eNB to the UE in the corresponding cell of the second eNB is obtained.

a receiver, configured to receive interleaver information of a second eNB corresponding cell that is sent by the first eNB, where the interleaver information of the second eNB is sent by the second eNB to the first eNB by using an X2 interface;

The processor is configured to perform iterative detection according to the interleaver information of the second eNB corresponding cell and the stored interleaver information of the first eNB corresponding cell, and obtain the first eNB to send to the corresponding cell in the first eNB. UE information;

a bus, configured to connect the receiver and the processor, and the receiver and the processor complete communication with each other through the bus. The above-mentioned aspect and any possible implementation manner further provide an implementation manner, where the receiver is further configured to receive iterative detection reference information of a second eNB corresponding cell sent by the first eNB, where the second The iterative detection reference information of the eNB corresponding cell is sent by the second eNB to the eNB through the X2 interface;

The processor is specifically configured to perform iterative detection according to the iterative detection reference information of the second eNB corresponding cell, the interleaver information of the second eNB corresponding cell, and the stored interleaver information of the first eNB corresponding cell.

As can be seen from the foregoing disclosure, the first eNB receives the interleaver information of the second eNB corresponding cell through the X2 interface, so that the UE in the first eNB and/or the first eNB corresponding cell can be based on the interleaver information of the corresponding cell of the first eNB. The second eNB performs iterative detection on the interleaver information of the corresponding cell, so that the iterative detection can be performed according to the interleaver information of all UEs sharing the time-frequency resource, so that an accurate detection result can be obtained, and the accuracy of acquiring the information is improved. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

1 is a flowchart of an information acquisition method according to Embodiment 1 of the present invention;

2 is a flowchart of an information acquisition method according to Embodiment 2 of the present invention;

3 is a flowchart of an information acquiring method according to Embodiment 3 of the present invention;

4 is a schematic structural diagram of an eNB according to Embodiment 4 of the present invention;

5 is a schematic structural diagram of a UE according to Embodiment 5 of the present invention;

6 is a schematic structural diagram of an eNB according to Embodiment 6 of the present invention;

FIG. 7 is a schematic structural diagram of a UE according to Embodiment 7 of the present invention. detailed description

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

FIG. 1 is a flowchart of an information acquisition method according to Embodiment 1 of the present invention. As shown in Figure 1, the method includes the following process.

Step 101: The first eNB receives the interleaver information of the second eNB corresponding cell sent by the second eNB by using the X2 interface.

Step 102: The first eNB performs iterative detection according to the interleaver information of the cell corresponding to the second eNB and the interleaver information of the corresponding cell of the first eNB, and acquires the UE in the cell corresponding to the first eNB and sends the message to the eNB. And/or, the first eNB sends the interleaver information of the second eNB corresponding cell to the UE in the eNB corresponding cell.

In this step, after receiving the interleaver information of the cell corresponding to the second eNB, the first eNB may use any one of the following three processing modes. In a first mode, the first eNB performs iterative detection according to the interleaver information of the cell corresponding to the second eNB and the interleaver information of the corresponding cell of the first eNB, and acquires the UE in the cell corresponding to the first eNB and sends the message to the first eNB. Information. The second eNB may further send the interleaver information of the second eNB corresponding cell to the UE in the first eNB corresponding cell, so that the UE in the first eNB corresponding cell is according to the second eNB. An iterative detection is performed on the interleaver information of the corresponding cell and the interleaver information of the corresponding cell of the first eNB, and the information sent by the first eNB to the UE in the corresponding cell of the first eNB is obtained. In the third mode, the first eNB performs the foregoing mode 1 and performs the foregoing mode 2.

In the first embodiment of the present invention, the first eNB receives the interleaver information of the second eNB corresponding cell through the X2 interface, so that the UE in the first eNB and/or the first eNB corresponding cell may be according to the interleaver of the corresponding eNB of the first eNB. The information and the interleaver information of the cell corresponding to the second eNB are iteratively detected, so that the iterative detection can be performed according to the interleaver information of all UEs sharing the time-frequency resource, so that an accurate detection result can be obtained, and the accuracy of acquiring the information is improved.

Based on the above technical solution related to the first embodiment of the present invention, further, the foregoing The method may further include: the first eNB transmitting the interleaver information of the first eNB corresponding cell to the second eNB by using an X2 interface, so that the second eNB is interleaved according to the first eNB corresponding cell The device information and the stored interleaver information of the second eNB corresponding cell are iteratively detected, and the information sent by the UE in the second eNB corresponding cell to the second eNB is acquired; and/or, so that the second eNB is used. Transmitting the interleaver information of the first eNB corresponding cell to the UE in the second eNB corresponding cell, where the UE in the second eNB corresponding cell is based on the interleaver information of the first eNB corresponding cell and the stored The interleaver information of the cell corresponding to the second eNB is iteratively detected, and the information sent by the second eNB to the UE in the cell corresponding to the second eNB is obtained.

On the basis of the foregoing technical solution related to the first embodiment of the present invention, the method may further include: the first base station eNB receiving, by using an X2 interface, an iterative detection reference of a second eNB corresponding cell sent by the second eNB information. Correspondingly, the iterative detection by the first eNB according to the interleaver information of the second eNB corresponding cell and the stored interleaver information of the first eNB corresponding cell includes: the first eNB according to the second eNB corresponding cell The iterative detection reference information, the interleaver information of the second eNB corresponding cell, and the stored interleaver information of the corresponding cell of the first eNB are iteratively detected; and/or the method further includes: the first eNB is The UE in the corresponding eNB of the first eNB sends the iterative detection reference information of the cell corresponding to the second eNB, so that the UE in the cell corresponding to the first eNB detects the reference information according to the iteration of the cell corresponding to the second eNB. The interleaver information of the second eNB corresponding cell and the stored interleaver information of the corresponding cell of the first eNB are iteratively detected, and the information sent by the first eNB to the UE in the corresponding cell of the first eNB is obtained.

On the basis of the foregoing technical solution related to the first embodiment of the present invention, the method may further include: sending, by the first eNB, an iteration of the cell corresponding to the eNB to the second eNB by using an X2 interface. Detecting the reference information, so that the second eNB performs iteration according to the iterative detection reference information of the first eNB corresponding cell, the interleaver information of the first eNB corresponding cell, and the stored interleaver information of the second eNB corresponding cell. Detecting, acquiring information that the UE in the second eNB corresponding cell sends to the second eNB; and/or, so that the second eNB sends the first eNB to the UE in the second eNB corresponding cell The eNB corresponds to the iterative detection reference information of the cell, and the UE in the second eNB corresponds to the iterative detection reference information of the first eNB corresponding cell, the interleaver information of the first eNB corresponding cell, and the stored second eNB. An iterative detection is performed on the interleaver information of the corresponding cell, and the second eNB is sent to the second eNB to be correspondingly small. Information about the UE in the zone.

On the basis of the foregoing technical solution related to the first embodiment of the present invention, the iterative detection reference information includes a combination of any one or more of the following information: uplink and downlink identification information, scheduling subframe information, and resources. Distribution information, Modulation and Coding Scheme (MCS) information, demodulation reference signal information, Cell Radio Network Temporary Identifier (C-RNTI), Redundancy Version (RVV) )information.

FIG. 2 is a flowchart of an information acquiring method according to Embodiment 2 of the present invention. As shown in Figure 2, the method includes the following process.

Step 201: The UE in the cell corresponding to the first eNB receives the interleaver information of the cell corresponding to the second eNB that is sent by the first eNB.

In this step, the UE in the cell corresponding to the first eNB receives the interleaver information of the cell corresponding to the second eNB that is sent by the eNB, where the interleaver information of the cell corresponding to the second eNB is the second eNB. Sent to the eNB through the X2 interface.

Step 202: The UE in the corresponding eNB of the first eNB performs iterative detection according to the interleaver information of the corresponding cell of the second eNB and the interleaver information of the corresponding cell of the first eNB, and acquires the first eNB to send to the first eNB. An eNB corresponds to information of a UE in a cell.

In the second embodiment of the present invention, after receiving the interleaver information of the second eNB corresponding cell, the first eNB sends the interleaver information of the second eNB corresponding cell to the UE in the corresponding eNB of the first eNB, the first eNB. The UE in the corresponding cell performs iterative detection according to the interleaver information of the corresponding cell of the first eNB and the interleaver information of the corresponding cell of the second eNB, so that iterative detection can be performed according to the interleaver information of all UEs sharing the time-frequency resource, so that the UE can obtain Accurate detection results improve the accuracy of information acquisition.

FIG. 3 is a flowchart of an information acquiring method according to Embodiment 3 of the present invention. In the third embodiment of the present invention, the information exchanged between the first eNB and the second eNB includes the interleaver information of the cell and the iterative detection reference information as an example. As shown in FIG. 3, the method includes the following process.

Step 301: The first eNB receives the interleaver information and the iterative detection reference information of the second eNB corresponding cell sent by the second eNB by using the X2 interface.

In this step, the iterative detection reference information may include any one or more of the following combinations: uplink and downlink identification information, scheduling subframe information, resource allocation information, MCS information, and demodulation Reference signal information, C-RNTI, redundancy version information. In an implementation manner, the second eNB sends the iterative detection reference information of the second eNB corresponding cell to the first eNB by using the X2 interface. In other implementation manners, the second eNB corresponding to the cell may also be configured in a pre-configured manner. The iterative detection reference information is configured on the first eNB. For example, the iterative detection reference information of the first eNB corresponding cell and the iterative detection reference information of the second eNB corresponding cell may be configured on the first eNB and the second eNB in a pre-configured manner, where the first eNB and the first eNB may be configured. The MCS information and the redundancy version information of the cell corresponding to the second eNB are configured to be the same information. In an implementation manner, the second eNB sends interleaver information of all UEs in the second eNB corresponding cell to the first eNB through the X2 interface, and in the case that the iterative detection reference information is sent through the X2 interface, the second eNB passes the X2. The interface sends, to the first eNB, the iterative detection reference information of all the UEs in the second eNB corresponding cell. In another implementation manner, the second eNB sends the UE in the corresponding eNB to the first eNB through the X2 interface. The second eNB of the time-frequency resource corresponds to the interleaver information of the UE in the cell, and when the iterative detection reference information is sent through the X2 interface, the second eNB sends the UE in the cell corresponding to the first eNB to the first eNB through the X2 interface. The second eNB sharing the time-frequency resource corresponds to the iterative detection reference information of the UE in the cell.

After step 301, only step 302 or only step 303 and step 304 may be performed, or both step 302 and step 303 and step 304 may be performed, step 304 is performed after step 303, and the execution order of step 302 and step 303 is not performed. Restrictions can be performed simultaneously.

Step 302: The first eNB performs iterative detection.

In this step, the first eNB performs iterative detection according to the iterative detection reference information of the second eNB corresponding cell, the interleaver information of the second eNB corresponding cell, and the stored interleaver information of the corresponding eNB corresponding cell. The first eNB corresponds to information sent by the user equipment UE in the cell to the first eNB. Specifically, the interleaver information of the UE corresponding to the first eNB may be the interleaver information of the UE currently scheduled by the first eNB in the first eNB, and the iteration detection reference information of the corresponding cell of the second eNB may be specifically The second eNB corresponds to the iterative detection reference information of the UE that shares the time-frequency resource with the UE currently scheduled by the first eNB, and the interleaver information of the second eNB corresponding cell may be the first eNB in the second eNB corresponding cell. The currently scheduled UE shares the interleaver information of the UE of the time-frequency resource.

Step 303: The first eNB sends interleaver information and iterative detection reference information of the second eNB corresponding cell to the UE in the eNB corresponding cell. In this step, the iterative detection reference information may include any one or more of the following combinations: uplink and downlink identification information, scheduling subframe information, resource allocation information, MCS information, demodulation reference signal information, C-RNTK Redundancy version information. Specifically, in the first implementation manner, the interleaver information and the iterative detection reference information of the second eNB corresponding cell that are sent by the first eNB to the UE in the first eNB corresponding cell may be the first and the second eNB corresponding to the cell. The interleaver information and the iterative detection reference information of the UE that the UE currently schedules the UE to share the time-frequency resource; in the second implementation manner, the inter-interleaver information of the second eNB corresponding to the UE sent by the UE to the UE in the corresponding eNB of the first eNB And the iterative detection reference information may specifically be interleaver information and iterative detection reference information of all UEs in the corresponding cell of the second eNB.

Step 304: The first eNB performs iterative detection on the UE in the corresponding cell.

In this step, the UE in the first eNB corresponds to the iterative detection reference information of the second eNB corresponding cell, the interleaver information of the second eNB corresponding cell, and the stored interleaver information of the first eNB corresponding cell. The iterative detection is performed to obtain information that is sent by the first eNB to the UE in the corresponding cell of the first eNB. Specifically, the UE in the corresponding cell of the first eNB is specifically the UE currently scheduled by the first eNB, and is described as the current UE in the following description. If the implementation manner 1 is used in the foregoing step 303, then in step 304, The iterative detection may be the interleaver information of the current UE itself, and the iterative detection reference information of the second eNB corresponding to the cell may be the second. The eNB corresponds to the iterative detection reference information of the UE that shares the time-frequency resource with the current UE in the cell, and the interleaver information of the cell corresponding to the second eNB may be a time-frequency resource shared with the current UE in the corresponding cell of the second eNB. Interleaver information of the UE; if the second implementation mode is used in the foregoing step 303, in step 304, the current UE schedules the time-frequency resource used by the current UE according to the first eNB, and corresponds to the second eNB according to the first eNB. Obtaining interleaver information and iterative detection reference of the UE sharing the time-frequency resource with the current UE in the cell corresponding to the second eNB, in the interleaver information and the iterative detection reference information of all the UEs in the cell In the iterative detection, the interleaver information of the first eNB corresponding to the cell may be the interleaver information of the current UE, and the iterative detection reference information of the cell corresponding to the second eNB may be the second The eNB corresponds to the iterative detection reference information of the UE that shares the time-frequency resource with the current UE in the cell, and the interleaver information of the cell corresponding to the second eNB may be a time-frequency resource shared with the current UE in the corresponding cell of the second eNB. Interleaver information for the UE. After step 302 and/or step 303, the following step 305 can also be performed.

Step 305: The first eNB sends the interleaver information and the iterative detection reference information of the first eNB corresponding cell to the second eNB by using an X2 interface.

In this step, the iterative detection reference information may include any one or more of the following combinations: uplink and downlink identification information, scheduling subframe information, resource allocation information, MCS information, demodulation reference signal information, C-RNTI , redundancy version information. For the specific manner in which the first eNB sends the interleaver information and the iterative detection reference information of the first eNB corresponding cell to the second eNB by using the X2 interface, refer to step 301, where the first eNB receives the second eNB through the X2 interface. The information about the interleaver information and the iterative detection reference information of the second eNB is sent, and the first eNB sends the information in the same manner as the second eNB in step 301 in step 305, and details are not described herein.

After step 305, only step 306 or only step 307 and step 308 may be performed, or both step 306 and step 307 and step 308 are performed, step 308 is performed after step 307, and the order of execution of step 306 and step 307 is not performed. Restrictions can also be performed simultaneously.

Step 306: The second eNB performs iterative detection.

In this step, the second eNB performs iterative detection according to the iterative detection reference information of the first eNB corresponding cell, the interleaver information of the first eNB corresponding cell, and the stored interleaver information of the second eNB corresponding cell, and acquires The second eNB corresponds to information sent by the UE in the cell to the second eNB. For a specific manner of the iterative detection by the second eNB, refer to the description of the iterative detection of the first eNB in step 302. In step 306, the second eNB performs iterative detection in the same manner as the first eNB in step 302. This will not be repeated here.

Step 307: The second eNB sends the interleaver information and the iterative detection reference information of the cell corresponding to the eNB to the UE in the cell corresponding to the second eNB.

In this step, the iterative detection reference information may include any one or more of the following combinations: uplink and downlink identification information, scheduling subframe information, resource allocation information, MCS information, demodulation reference signal information, C-RNTI , redundancy version information. For the specific manner in which the second eNB sends the interleaver information and the iterative detection reference information of the first eNB corresponding cell to the UE in the second eNB corresponding cell, refer to the first eNB to the first eNB in step 303. The eNB corresponding to the UE in the cell sends the description of the interleaver information and the iterative detection reference information of the second eNB corresponding cell, and in step 307, the second eNB uses the same manner as the first eNB in step 303 to correspond to each other. The UE in the area sends the above information, and details are not described herein again.

Step 308: The second eNB performs iterative detection on the UE in the corresponding cell.

In this step, the UE in the second eNB corresponds to the iterative detection reference information of the first eNB corresponding cell, the interleaver information of the first eNB corresponding cell, and the stored interleaver information of the second eNB corresponding cell. Perform iterative testing. For the specific manner of the iterative detection of the UE in the cell corresponding to the second eNB, refer to the description of the iterative detection of the UE in the cell corresponding to the first eNB in step 304. In step 308, the UE in the cell corresponding to the second eNB is used. The iterative detection is performed in the same manner as the UE in the cell corresponding to the first eNB in step 304, and details are not described herein again.

In the third embodiment of the present invention, the first eNB receives the interleaver information and the iterative detection reference information of the cell corresponding to the second eNB through the X2 interface, and sends the information to the UE in the corresponding cell of the first eNB, so that the eNB and the eNB correspond to the eNB. The UE in the cell may perform iterative detection according to the interleaver information of the cell corresponding to the eNB, the interleaver information of the cell corresponding to the second eNB, and the iterative detection reference information, so as to be iterable according to the interleaver information of all UEs sharing the time-frequency resource. Detection, so accurate detection results can be obtained, and the accuracy of obtaining information is improved.

FIG. 4 is a schematic structural diagram of an eNB according to Embodiment 4 of the present invention. In the following description, the eNB shown in FIG. 4 is described as a first eNB; the second eNB in the following description may also use the structure shown in FIG. As shown in FIG. 4, the eNB includes at least: a receiving unit 41, an iterative detecting unit 42, and a first transmitting unit 43.

The receiving unit 41 is configured to receive, by using an X2 interface, interleaver information of a second eNB corresponding cell that is sent by the second eNB.

The iterative detection unit 42 is configured to perform iterative detection according to the interleaver information of the second eNB corresponding cell and the stored interleaver information of the first eNB corresponding cell, and acquire the user equipment UE in the corresponding cell of the first eNB to send to the Information of an eNB.

The first sending unit 43 is configured to send the interleaver information of the second eNB corresponding cell to the UE in the first eNB corresponding cell, so that the UE in the first eNB corresponding cell corresponds to the second eNB. The interleaver information of the cell and the stored interleaver information of the corresponding cell of the first eNB are iteratively detected, and the information sent by the first eNB to the UE in the corresponding cell of the first eNB is obtained.

Based on the foregoing technical solution, the eNB may further include: a second sending unit 44. The second sending unit 44 is configured to send the first eNB to the second eNB by using an X2 interface. Corresponding to the interleaver information of the cell, so that the second eNB performs iterative detection according to the interleaver information of the first eNB corresponding cell and the stored interleaver information of the second eNB corresponding cell, and acquires the second eNB corresponding cell. Transmitting, by the second UE, the interleaver information of the first eNB corresponding cell to the UE in the second eNB corresponding cell, and/or The UE in the second eNB corresponding cell performs iterative detection according to the interleaver information of the first eNB corresponding cell and the stored interleaver information of the second eNB corresponding cell, and acquires the second eNB to send to the second eNB. Information of the UE in the cell.

On the basis of the foregoing technical solution, the receiving unit 41 is further configured to receive, by using the X2 interface, the iterative detection reference information of the second eNB corresponding cell sent by the second eNB. Correspondingly, the iterative detecting unit 42 is specifically configured to perform, according to the iterative detection reference information of the second eNB corresponding cell, the interleaver information of the second eNB corresponding cell, and the stored interleaver information of the first eNB corresponding cell. The iterative detection is performed to obtain information that is sent by the user equipment UE in the cell corresponding to the first eNB to the first eNB; and/or the first sending unit 43 is further configured to send to the UE in the corresponding cell of the first eNB. The second eNB corresponds to the iterative detection reference information of the cell, so that the UE in the first eNB corresponding cell according to the iterative detection reference information of the second eNB corresponding cell, and the interleaver information of the second eNB corresponding cell The iterative detection is performed on the interleaver information of the corresponding cell of the first eNB, and the information sent by the first eNB to the UE in the corresponding cell of the first eNB is obtained.

On the basis of the foregoing technical solution, the second sending unit 44 is further configured to send, by using an X2 interface, the iterative detection reference information of the first eNB corresponding cell to the second eNB, so that the second The eNB performs iterative detection according to the iterative detection reference information of the first eNB corresponding cell, the interleaver information of the first eNB corresponding cell, and the stored interleaver information of the second eNB corresponding cell, and acquires the second eNB corresponding cell. Information sent by the UE in the second eNB; and/or, so that the second eNB sends the iterative detection reference information of the cell corresponding to the eNB to the UE in the second eNB corresponding cell, The UE in the second eNB corresponding cell performs iterative detection according to the iterative detection reference information of the first eNB corresponding cell, the interleaver information of the first eNB corresponding cell, and the stored interleaver information of the second eNB corresponding cell, Obtaining information that is sent by the second eNB to a UE in a cell corresponding to the second eNB.

On the basis of the foregoing technical solutions, the iterative detection reference information may include any one or more of the following combinations: uplink and downlink identification information, scheduling subframe information, and resources. Source allocation information, MCS information, demodulation reference signal information, C-RNTI, redundancy version information. The eNB of the fourth embodiment of the present invention may be used to perform the information obtaining method according to the first embodiment of the present invention to the third embodiment of the present invention. The specific implementation process and technical effects may refer to the first embodiment of the present invention to the third embodiment of the present invention. No longer.

FIG. 5 is a schematic structural diagram of a UE according to Embodiment 5 of the present invention. In the following description, the UE shown in FIG. 5 is described as a UE in a cell corresponding to the first eNB; the UE in the corresponding cell in the second eNB in the following description may also use the structure shown in FIG. 5. As shown in FIG. 5, the UE includes at least: a receiving unit 51 and an iterative detecting unit 52.

The receiving unit 51 is configured to receive interleaver information of the second eNB corresponding cell that is sent by the first eNB, where the interleaver information of the second eNB is sent by the second eNB to the first eNB by using an X2 interface. of.

The iterative detection unit 52 is configured to perform iterative detection according to the interleaver information of the corresponding cell of the second eNB and the interleaver information of the corresponding cell of the first eNB, and obtain the first eNB to send to the corresponding cell of the first eNB. UE information.

On the basis of the foregoing technical solution, the receiving unit 51 is further configured to receive iterative detection reference information of the second eNB corresponding cell sent by the first eNB, and the iterative detection reference information of the second eNB corresponding cell The second eNB is sent to the eNB through the X2 interface. The iterative detection unit 52 is specifically configured to use the iterative detection reference information of the second eNB corresponding cell, and the second eNB corresponding cell. The interleaver information and the stored interleaver information of the corresponding cell of the first eNB are iteratively detected.

Based on the foregoing technical solution, the iterative detection reference information includes a combination of any one or more of the following information: uplink and downlink identification information, scheduling subframe information, resource allocation information, MCS information, and demodulation. Reference signal information, C-RNTI, redundancy version information. The method for obtaining the information, the specific implementation process and the technical effect can be referred to the third embodiment of the present invention to the third embodiment of the present invention, and details are not described herein again.

FIG. 6 is a schematic structural diagram of an eNB according to Embodiment 6 of the present invention. In the following description, the eNB shown in FIG. 6 is described as the first eNB; the second eNB in the following description may also use the structure shown in FIG. 6. As shown in FIG. 6, the eNB includes at least: a receiver 61, a processor 62, a first transmitter 63, and a bus 60. The receiver 61 is configured to receive, by using an X2 interface, interleaver information of a second eNB corresponding cell that is sent by the second eNB.

The processor 62 is configured to perform iterative detection according to the interleaver information of the second eNB corresponding cell and the stored interleaver information of the first eNB corresponding cell, and obtain the user equipment UE in the corresponding cell of the first eNB to send to the first Information of the eNB.

The first transmitter 63 is configured to send the interleaver information of the second eNB corresponding cell to the UE in the first eNB corresponding cell, so that the UE in the first eNB corresponding cell corresponds to the second eNB. The interleaver information of the cell and the stored interleaver information of the corresponding cell of the first eNB are iteratively detected, and the information sent by the first eNB to the UE in the corresponding cell of the first eNB is obtained.

The bus 60 is configured to connect the receiver 61, the processor 62, and the first transmitter 63, and the receiver 61, the processor 62, and the first transmitter 63 are completed by the bus 60. Communication with each other.

Based on the foregoing technical solution, the method further includes: a second transmitter 64. The second transmitter 64 is configured to send the interleaver information of the first eNB corresponding cell to the second eNB by using an X2 interface, so that the second eNB is configured according to interleaver information and storage of the first eNB corresponding cell. _e NB interleaved second information corresponding to the iterative detection cell, the UE acquires the second eNB to transmit information of the cell corresponding to the second eNB; and / or to make the second eNB to the The UE in the second eNB corresponding cell sends the interleaver information of the first eNB corresponding cell, and the UE in the second eNB corresponding cell corresponds to the interleaver information of the first eNB corresponding cell and the stored second eNB. The interleaver information of the cell is iteratively detected, and the information sent by the second eNB to the UE in the corresponding cell of the second eNB is obtained.

On the basis of the foregoing technical solution, the receiver 61 is further configured to receive, by using an X2 interface, the iterative detection reference information of the second eNB corresponding cell that is sent by the second eNB. Correspondingly, the processor 62 is configured to perform iteration according to the iterative detection reference information of the second eNB corresponding cell, the interleaver information of the second eNB corresponding cell, and the stored interleaver information of the first eNB corresponding cell. Detecting, acquiring information sent by the user equipment UE in the cell corresponding to the first eNB to the first eNB; and/or, the first transmitter 63 is further configured to send the UE to the UE in the corresponding eNB of the first eNB. The iterative detection reference information of the second eNB corresponding cell, so that the UE in the first eNB corresponding cell according to the iterative detection reference information of the second eNB corresponding cell, the interleaver information of the second eNB corresponding cell, and The stored first eNB performs iterative check on the interleaver information of the corresponding cell And obtaining, by the first eNB, information that is sent by the first eNB to the UE in the corresponding cell of the first eNB.

Based on the foregoing technical solution, the second transmitter 64 is further configured to pass

The X2 interface sends the iterative detection reference information of the first eNB to the second eNB, so that the second eNB detects the reference information according to the first eNB corresponding cell and the first eNB corresponding cell. The interleaver information and the stored interleaver information of the second eNB corresponding cell are iteratively detected, and the information sent by the UE in the second eNB corresponding cell to the second eNB is acquired; and/or, so that the The second eNB sends the iterative detection reference information of the cell corresponding to the eNB to the UE in the cell corresponding to the second eNB, and the UE in the cell corresponding to the second eNB according to the iterative detection reference information of the cell corresponding to the eNB And the interleaver information of the cell corresponding to the eNB and the stored interleaver information of the cell corresponding to the second eNB are iteratively detected, and the information sent by the second eNB to the UE in the cell corresponding to the second eNB is obtained.

Based on the foregoing technical solution, the iterative detection reference information includes a combination of any one or more of the following information: uplink and downlink identification information, scheduling subframe information, resource allocation information, MCS information, and demodulation. Reference signal information, C-RNTI, redundancy version information.

The eNB of the sixth embodiment of the present invention can be used to perform the information obtaining method according to the first embodiment of the present invention to the third embodiment of the present invention. The specific implementation process and technical effects can be referred to the third embodiment of the present invention to the third embodiment of the present invention. No longer.

FIG. 7 is a schematic structural diagram of a UE according to Embodiment 7 of the present invention. In the following description, the UE shown in FIG. 7 is described as a UE in a cell corresponding to the first eNB; the UE in the corresponding cell in the second eNB in the following description may also use the structure shown in FIG. As shown in FIG. ,, the UE includes at least: a receiver 71, a processor 72, and a bus 70.

The receiver 71 is configured to receive the interleaver information of the second eNB corresponding cell that is sent by the first eNB, where the interleaver information of the second eNB is sent by the second eNB to the first eNB by using the X2 interface. of.

The processor 72 is configured to perform iterative detection according to the interleaver information of the second eNB corresponding cell and the stored interleaver information of the first eNB corresponding cell, and acquire the first eNB to send to the corresponding cell in the first eNB. UE information.

A bus 70 is used to connect the receiver 71 and the processor 72, and the receiver 71 and the processor 72 complete communication with each other via the bus 70.

Based on the foregoing technical solution, the receiver 71 is further configured to receive the The iterative detection reference information of the second eNB corresponding cell sent by the eNB, the iterative detection reference information of the second eNB corresponding to the cell is sent by the second eNB to the eNB through the X2 interface; And performing iterative detection according to the iterative detection reference information of the second eNB corresponding cell, the interleaver information of the second eNB corresponding cell, and the stored interleaver information of the first eNB corresponding cell.

In the IDMA system, there are UEs that belong to different cells and share time-frequency resources. For example, in a case where the eNB-related cell is adjacent to the second eNB-corresponding cell, the first UE located at the edge of the corresponding cell of the first eNB is located. The second UE corresponding to the edge of the cell of the second eNB shares the time-frequency resource, and the UE in this case is the edge UE. The method, the eNB, and the UE in the embodiments of the present invention may exchange interleaver information of UEs in respective cells between adjacent eNBs, or exchange interleaver information and iterative detection reference information of UEs in respective cells. These include interleaver information of the edge UE, or interleaver information including edge UEs and iterative detection reference information. In other implementations, the interleaver information and/or the iterative detection reference information of the UE involved in various embodiments of the present invention may include only interleaver information and/or iterative detection reference information of the edge UE, and does not need to include interleaving of other UEs. Information and/or iterative detection reference information.

The interleaver information and iterative detection reference information involved in the various embodiments of the present invention are described below. In the following description, only the interleaver information of the UE involved and the iterative detection reference information are used as the interleaver information of the edge UE. In other implementation manners, the interleaver information and the iterative detection reference information of other UEs may also be in accordance with The interleaver information of the edge UE and the processing method of the iterative detection reference information are processed in the same manner, and are not described here.

Interleaver information

Assuming that there are a total of 32 interleavers in the set of interleavers available to the cell, then 5 bits are needed to indicate, for example, the seventh interleaver, which is represented by "00111". The set of interleavers may be common to both the cell and the neighboring cells, for example, a total of 32 interleavers, all of which can be The 32 interleavers are used; the set of interleavers can also be cell-specific, ie only one subset of all interleavers can be used per cell. If it is dedicated to the cell, it may be preset that each cell saves the interleaver set information of its neighboring cell; or the neighboring cell exchanges its interleaver set information through the X2 port, such as the interleaver subset number. Or make the cell ID and its available interleaver have a certain binding relationship, such as ^ _ set all available interleavers to 100, numbered 0 ~ 99, use ninterleave to represent the interleaver number, ncell - ID represents the cell ID, then the interleaver whose interleaver number satisfies ninterleave mod M=ncell_ID mod M belongs to the cell whose cell ID is ncell_ID, where M is a constant, for example, 5, so that the eNB obtains the cell ID of its neighboring cell The interleaver information available to it can be known. The interleaver information can also be bound to the resource allocation information, for example, the system resource is 5M, and there are 25 radio bearers (Radio Bear, RB for short), HH9i 0 ~ 24 RB, 0 ~ 4 corresponding to the number #1 interleaving. 5 ~ 9 corresponds to #2 interleaver, 10 ~ 14 corresponds to #3 interleaver, 15 ~ 19 corresponds to #4 interleaver, 20 ~ 24 corresponds to number #5 interleaver, each time the edge is scheduled The UE can only schedule the above five RB segments, and then the X2 port only informs the interleaver information. For example, the interleaver of the notification number #3 is scheduled to be scheduled on the RBs 10-14.

Iterative detection reference information

The iterative detection reference information may include a combination of any one or more of the following information: uplink and downlink identification information, scheduling subframe information, resource allocation information, MCS information, demodulation reference signal information, C-RNTL redundancy version information.

Up and down identification information

The uplink and downlink identification information indicates whether the uplink or downlink is scheduled, and can be represented by one bit. If IDMA is only used for uplink or only for downlink, there is no need to exchange this information.

Scheduling subframe information

Assuming that the scheduling subframe is in the third subframe of the next radio frame, the scheduling subframe information is represented by "011". If there are several subframes in the scheduling subframe, the scheduling subframe information may also be sequentially represented, and the subframe information message information is scheduled. The format may be: sub-frame number + information of the interleaver of the scheduled edge UE + sub-frame number + interleaver of the scheduled edge UE, etc. +. Alternatively, the bitmap (abbreviated as bitmap) is used to indicate the scheduling subframe information of the next radio frame, such as "0111000010", indicating that it is scheduled on the #1, 2, 3, and 8" subframes. The message format may be: Bitmap+ information such as an interleaver of the edge UE on the scheduling subframe. The scheduling subframe information may also not be notified during the interaction, but the preset is used. Method. For example, the default is scheduled on some subframes of the next radio frame. For example, by default, the edge UE is scheduled on subframes 2, 5, and 8 of the next radio frame, and the eNB may send a message indicating whether it is scheduled in the subframes, for example, using a bitmap, for example, "011", the first 0 indicates that there is no scheduling edge UE on the second subframe, and the edge UE is scheduled on the fifth and eighth subframes. The format of the scheduling subframe information may be: 011 + information such as an interleaver of the edge UE scheduled in the 5th subframe + an interleaver of the edge UE scheduled in the 8th subframe, and the like. The format of the scheduling subframe information may also be other ways. In practical applications, it is not limited to the above message format. Alternatively, it may be preset that the edge UE can be scheduled only in a certain subframe of the next radio frame, and then the scheduling subframe information is not required to be transmitted on the X2 interface.

Resource allocation information

Assuming that the system bandwidth is 5M, that is, 25 RBs, if the indication method of continuous resource allocation is used, then "log ₂ (25 X 26 / 2) > 9 bits is required to indicate the allocated resources. Of course, other resources can be used. The method of resource allocation, such as bitmap, is not limited in the present invention.

MCS information

The MCS information of the edge UE requires 5 bits to represent the information. The edge UE usually has poor channel conditions. The MCS of the edge UE can be preset to be fixed, such as a quadrature phase shift keying signal (QPSK for short) and 1/3 encoding, so there is no need to transmit MCS information on the X2 interface.

Demodulation reference signal information

The demodulation reference signal information is used to indicate the position and/or sequence information of the demodulation reference signal. If the position and/or sequence of the demodulation reference signal is fixed or only related to the cell ID, then the transmission of the X2 interface is not required. Demodulation reference signal information.

C-RNTI

The Physical Uplink Shared Channel (PUSCH) and the Physical Downlink Shared Channel (PDSCH) are scrambled by a scrambling code sequence, and the scrambling code sequence is initialized by C-RNTI. The sequence of the demodulation reference signal is also related to the C-RNTI, so it may be necessary to exchange the C-RNTI information of the scheduled UE. In other implementations, the C-RNTI may also be used to generate the information. For example, the PUSCH and the PDSCH are scrambled by a cell-specific sequence, that is, the scrambling sequence is related to the cell ID, and the demodulation reference is used. The sequence and/or location of the signal is also only related to the cell ID. C-RNTI is not required to generate this information, so there is no need to transmit the C-RNTI on the X2 port. Redundancy version information

The redundancy version information of the data, if the version of the edge UE is set to a fixed value, for example, there are four existing redundancy versions, and the edge UE is fixed to one type, so that the redundancy version information is not required to be transmitted on the X2 interface.

The above interleaver information and the iterative detection reference information can also be simplified accordingly. For example, it can be assumed that the interleavers of the edge UEs scheduled in one subframe are the same, then each subframe can only notify one interleaver information. Or it can be assumed that the interleaver on all subframes is the same in the information transmitted by the X2 interface at a time, then only one interleaver can be notified in the information transmitted by the X2 interface at a time.

In various embodiments of the present invention, the foregoing interaction between the eNBs through the X2 interface may use a preset period, for example, every 20 ms.

In the embodiment of the present invention, after receiving the information sent by the second eNB in the manner described in the foregoing embodiments, the first eNB may also send the information of the first eNB to the second eNB in a simplified manner. For example, after the first eNB receives the interleaver information and the iterative detection reference information sent by the second eNB, in order to pair the edge UEs, the first eNB may schedule the edge UE, the first eNB subordinate, with the same time-frequency resource as the second eNB. The edge UE uses an interleaver different from the edge UE subordinate to the second eNB on the same time-frequency resource as the second eNB. In this case, the information format sent by the first eNB may be sent in a simplified format. For example, by default, each interaction is only sent in one fixed subframe of the next radio frame, and the second eNB lists several resource allocations and Corresponding interleaver information, for example: #0 ~ 5RB: interleaver #1; #20 ~ 21RB: interleaver #2; #28 ~ 32RB: interleaver #3, in the present embodiment, only the interleaver information is For example, the iterative detection reference information can be preset. For example, the first eNB has two edge UEs to be scheduled. The resources occupied by the two UEs are #20 ~ 21RB and #28 ~ 32RB respectively, and the interleavers used are #6 and #8 respectively, then the first eNB The "011+interleaver #6+interleaver #8" is fed back to the second eNB, where "011" indicates that the following interleaver corresponds to the last two of the three resources previously transmitted by the second eNB. Alternatively, the first eNB may also send the first two resources by default, and the first eNB feeds back to the second eNB "interleaver #6 + interleaver #8". If the first eNB does not have an edge UE to schedule, the interleaver information and the iterative detection reference information may not be fed back to the second eNB.

It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that the present invention is not described. The limitations of the sequence of actions are described, as some steps may be performed in other orders or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The method includes the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

claims

1. An information acquisition method, characterized by including:

The first base station eNB receives the interleaver information of the cell corresponding to the second eNB sent by the second eNB through the X2 interface;

The first eNB performs iterative detection based on the interleaver information of the cell corresponding to the second eNB and the stored interleaver information of the cell corresponding to the first eNB, and obtains the user equipment UE in the cell corresponding to the first eNB and sends it to the first eNB. information of the eNB; and/or, the first eNB sends the interleaver information of the cell corresponding to the second eNB to the UE in the cell corresponding to the first eNB, so that the UE in the cell corresponding to the first eNB can The second eNB performs iterative detection on the interleaver information of the cell corresponding to the second eNB and the stored interleaver information of the cell corresponding to the first eNB, and obtains the information sent by the first eNB to the UE in the cell corresponding to the first eNB.

2. The method according to claim 1, further comprising:

The -th eNB sends the interleaver information of the cell corresponding to the -th eNB to the second eNB through the The second eNB performs iterative detection of the interleaver information of the corresponding cell, and obtains the information sent by the UE in the corresponding cell of the second eNB to the second eNB; and/or, so that the second eNB sends the information to the second eNB. The UE in the corresponding cell sends the interleaver information of the cell corresponding to the first eNB, and the UE in the cell corresponding to the second eNB transmits the interleaver information of the cell corresponding to the first eNB and the stored interleaver information of the cell corresponding to the second eNB. Iteratively detects the device information, and obtains the information sent by the second eNB to the UE in the cell corresponding to the second eNB.

3. The method according to claim 1 or 2, characterized in that,

It also includes: the first base station eNB receiving the iterative detection reference information of the cell corresponding to the second eNB sent by the second eNB through the X2 interface;

The first eNB performs iterative detection based on the interleaver information of the cell corresponding to the second eNB and the stored interleaver information of the cell corresponding to the first eNB including: the iterative detection of the cell corresponding to the second eNB based on the first eNB The reference information, the interleaver information of the cell corresponding to the second eNB and the stored interleaver information of the cell corresponding to the first eNB are iteratively detected; and/or, the method further includes: the first eNB transmits the information to the first eNB. The UE in the cell corresponding to the eNB sends the iterative detection reference information of the cell corresponding to the second eNB, so that the first eNB corresponds to the cell. The UE in the area performs iterative detection based on the iterative detection reference information of the cell corresponding to the second eNB, the interleaver information of the cell corresponding to the second eNB, and the stored interleaver information of the cell corresponding to the first eNB, and obtains the -th Information sent by the eNB to the UE in the cell corresponding to the -th eNB.

4. The method according to claim 3, further comprising:

The -th eNB sends the iterative detection reference information of the cell corresponding to the -th eNB to the second eNB through the Perform iterative detection on the interleaver information of the cell corresponding to the first eNB and the stored interleaver information of the cell corresponding to the second eNB, and obtain the information sent to the second eNB by the UE in the cell corresponding to the second eNB; and/or , so that the second eNB sends the iterative detection reference information of the -th eNB corresponding cell to the UE in the second eNB corresponding cell, and the UE in the second eNB corresponding cell corresponds to the first eNB corresponding The iterative detection reference information of the cell, the interleaver information of the cell corresponding to the first eNB and the stored interleaver information of the cell corresponding to the second eNB are iteratively detected, and the information sent by the second eNB to the cell corresponding to the second eNB is obtained. UE information.

5. The method according to claim 3 or 4, characterized in that the iterative detection reference information includes any one or a combination of the following information:

Uplink and downlink identification information, scheduling subframe information, resource allocation information, modulation and coding method MCS information, demodulation reference signal information, cell wireless network temporary identification C-RNTI, and redundancy version information.

6. An information acquisition method, characterized by including:

The user equipment UE in the cell corresponding to the first base station eNB receives the interleaver information of the cell corresponding to the second eNB sent by the -th eNB, and the interleaver information of the cell corresponding to the second eNB is sent by the second eNB through the X2 interface To the - eNB;

The UE in the cell corresponding to the first eNB performs iterative detection based on the interleaver information of the cell corresponding to the second eNB and the stored interleaver information of the cell corresponding to the first eNB, and obtains the information sent by the first eNB to the first eNB. The eNB corresponds to the information of the UE in the cell.

7. The method according to claim 6, characterized in that,

It also includes: the UE in the cell corresponding to the first eNB receiving the iterative detection reference information of the cell corresponding to the second eNB sent by the first eNB, and the iteration of the cell corresponding to the second eNB. The detection reference information is sent by the second eNB to the -th eNB through the The iterative detection of the interleaver information includes: the UE in the cell corresponding to the first eNB based on the iterative detection reference information of the cell corresponding to the second eNB, the interleaver information of the cell corresponding to the second eNB and the stored correspondence of the first eNB The interleaver information of the cell is iteratively detected.

8. The method according to claim 6 or 7, characterized in that the iterative detection reference information includes any one or a combination of the following information:

9. A base station eNB, the eNB is the first eNB, characterized in that the eNB includes:

A receiving unit, configured to receive the interleaver information of the cell corresponding to the second eNB sent by the second eNB through the X2 interface;

An iterative detection unit configured to perform iterative detection based on the interleaver information of the cell corresponding to the second eNB and the stored interleaver information of the cell corresponding to the first eNB, and obtain the user equipment UE in the cell corresponding to the first eNB and send it to the first eNB. - eNB information;

The first sending unit is configured to send the interleaver information of the cell corresponding to the second eNB to the UE in the cell corresponding to the first eNB, so that the UE in the cell corresponding to the first eNB can respond according to the corresponding cell of the second eNB. The interleaver information of the cell and the stored interleaver information of the cell corresponding to the first eNB are iteratively detected to obtain the information sent by the first eNB to the UE in the cell corresponding to the first eNB.

10. The eNB according to claim 9, further comprising:

The second sending unit is configured to send the interleaver information of the cell corresponding to the first eNB to the second eNB through the The second eNB performs iterative detection of the interleaver information of the corresponding cell, and obtains the information sent to the second eNB by the UE in the corresponding cell of the second eNB; and/or, so that the second eNB sends the information to the second eNB. The UE in the cell corresponding to the second eNB sends the interleaver information of the cell corresponding to the -th eNB, and the UE in the cell corresponding to the second eNB transmits the interleaver information of the cell corresponding to the second eNB according to the first The eNB performs iterative detection on the interleaver information of the cell corresponding to the eNB and the stored interleaver information of the cell corresponding to the second eNB, and obtains the information sent by the second eNB to the UE in the cell corresponding to the second eNB.

11. The eNB according to claim 9 or 10, characterized in that,

The receiving unit is also configured to receive the iterative detection reference information of the cell corresponding to the second eNB sent by the second eNB through the X2 interface;

The iterative detection unit is specifically configured to perform iterative detection based on the iterative detection reference information of the cell corresponding to the second eNB, the interleaver information of the cell corresponding to the second eNB, and the stored interleaver information of the cell corresponding to the first eNB, and obtain The information sent by the user equipment UE in the cell corresponding to the first eNB to the first eNB; and/or, the first sending unit is also configured to send the second information to the UE in the cell corresponding to the -th eNB. The iterative detection reference information of the cell corresponding to the eNB, so that the UE in the cell corresponding to the eNB can use the iterative detection reference information of the cell corresponding to the second eNB, the interleaver information of the cell corresponding to the second eNB and the stored interleaver information of the cell corresponding to the second eNB. An eNB performs iterative detection of the interleaver information of the cell corresponding to the first eNB, and obtains the information sent by the first eNB to the UE in the cell corresponding to the first eNB.

12. The eNB according to claim 11, characterized in that,

The second sending unit is also configured to send the iterative detection reference information of the cell corresponding to the -th eNB to the second eNB through the X2 interface, so that the second eNB can perform the iterative detection of the cell corresponding to the -th eNB. The reference information, the interleaver information of the cell corresponding to the first eNB and the stored interleaver information of the cell corresponding to the second eNB are iteratively detected to obtain the information sent to the second eNB by the UE in the cell corresponding to the second eNB. ; and/or, so that the second eNB sends the iterative detection reference information of the -th eNB-corresponding cell to the UE in the cell corresponding to the second eNB, and the UE in the cell corresponding to the second eNB sends the UE in the cell corresponding to the second eNB according to the The iterative detection reference information of the cell corresponding to the -th eNB, the interleaver information of the cell corresponding to the -th eNB and the stored interleaver information of the cell corresponding to the second eNB are iteratively detected, and the second eNB is obtained and sent to the second eNB. The eNB corresponds to the information of the UE in the cell.

13. The eNB according to claim 11 or 12, characterized in that the iterative detection reference information includes any one or a combination of the following information:

Uplink and downlink identification information, scheduling subframe information, resource allocation information, modulation and coding method MCS information, demodulation reference signal information, cell wireless network temporary identity C-RNTI, redundancy version information interest.

14. A user equipment UE, the UE is a UE in a cell corresponding to the first base station eNB, characterized in that the UE includes:

A receiving unit, configured to receive the interleaver information of the cell corresponding to the second eNB sent by the first eNB, where the interleaver information of the cell corresponding to the second eNB is sent by the second eNB to the -th eNB through the X2 interface;

An iterative detection unit configured to perform iterative detection based on the interleaver information of the cell corresponding to the second eNB and the stored interleaver information of the cell corresponding to the first eNB, and obtain the interleaver information sent by the first eNB to the cell corresponding to the first eNB. UE information.

15. The UE according to claim 14, characterized in that,

The receiving unit is also configured to receive the iterative detection reference information of the cell corresponding to the second eNB sent by the first eNB. The iterative detection reference information of the cell corresponding to the second eNB is sent by the second eNB to the third eNB through the X2 interface. ― of eNB;

The iterative detection unit is specifically configured to perform iterative detection based on the iterative detection reference information of the cell corresponding to the second eNB, the interleaver information of the cell corresponding to the second eNB, and the stored interleaver information of the cell corresponding to the first eNB.

16. The UE according to claim 14 or 15, characterized in that the iterative detection reference information includes any one or a combination of the following information:

17. A base station eNB, the eNB is the first eNB, characterized in that the eNB includes:

A receiver, configured to receive the interleaver information of the cell corresponding to the second eNB sent by the second eNB through the X2 interface;

A processor configured to perform iterative detection based on the interleaver information of the cell corresponding to the second eNB and the stored interleaver information of the cell corresponding to the first eNB, and obtain the user equipment UE in the cell corresponding to the first eNB to send to the first eNB. eNB information;

The first transmitter is configured to send the interleaver information of the cell corresponding to the second eNB to the UE in the cell corresponding to the first eNB, so that the UE in the cell corresponding to the first eNB can adjust the interleaver information according to the Iteratively detect the interleaver information of the cell corresponding to the second eNB and the stored interleaver information of the cell corresponding to the first eNB, and obtain the information sent by the first eNB to the UE in the cell corresponding to the first eNB;

A bus is used to connect the receiver, the processor and the first transmitter, and the receiver, the processor and the first transmitter complete communication with each other through the bus.

18. The eNB according to claim 17, further comprising:

The second transmitter is configured to send the interleaver information of the cell corresponding to the first eNB to the second eNB through the The second eNB performs iterative detection of the interleaver information of the corresponding cell, and obtains the information sent to the second eNB by the UE in the corresponding cell of the second eNB; and/or, so that the second eNB sends the information to the second eNB. The UE in the cell corresponding to the second eNB sends the interleaver information of the cell corresponding to the first eNB. The UE in the cell corresponding to the second eNB transmits the interleaver information of the cell corresponding to the second eNB according to the interleaver information of the cell corresponding to the first eNB and the stored cell corresponding to the second eNB. The interleaver information is iteratively detected, and the information sent by the second eNB to the UE in the cell corresponding to the second eNB is obtained.

19. The eNB according to claim 17 or 18, characterized in that,

The receiver is also configured to receive the iterative detection reference information of the cell corresponding to the second eNB sent by the second eNB through the X2 interface;

The processor is specifically configured to perform iterative detection based on the iterative detection reference information of the cell corresponding to the second eNB, the interleaver information of the cell corresponding to the second eNB, and the stored interleaver information of the cell corresponding to the first eNB, and obtain the second eNB. Information sent by the user equipment UE in the cell corresponding to an eNB to the first eNB; and/or, the first transmitter is also used to send the second eNB to the UE in the cell corresponding to the first eNB. The iterative detection reference information of the corresponding cell, so that the UE in the cell corresponding to the first eNB can detect the iterative detection reference information of the cell corresponding to the second eNB according to the iterative detection reference information of the cell corresponding to the second eNB, the interleaver information of the cell corresponding to the second eNB and the stored first The eNB performs iterative detection on the interleaver information of the corresponding cell, and obtains the information sent by the first eNB to the UE in the cell corresponding to the first eNB.

20. The eNB according to claim 19, characterized in that,

The second transmitter is also configured to send the iterative detection reference information of the cell corresponding to the -th eNB to the second eNB through the The iterative detection reference information of the corresponding cell, the interleaver information of the corresponding cell of the first eNB and the stored interleaver information of the second eNB corresponding cell are iteratively detected, and the UE in the corresponding cell of the second eNB is obtained and sent to the information of the second eNB; and/or, so that the second eNB sends the iterative detection reference information of the -th eNB corresponding cell to the UE in the cell corresponding to the second eNB, in the cell corresponding to the second eNB The UE performs iterative detection based on the iterative detection reference information of the cell corresponding to the first eNB, the interleaver information of the cell corresponding to the -th eNB and the stored interleaver information of the cell corresponding to the second eNB, and obtains the information sent by the second eNB. Information about UEs in the cell corresponding to the second eNB.

21. The eNB according to claim 19 or 20, characterized in that the iterative detection reference information includes any one or a combination of the following information:

22. A user equipment UE, the UE is a UE in a cell corresponding to the first base station eNB, characterized in that the UE includes:

A receiver, configured to receive the interleaver information of the cell corresponding to the second eNB sent by the -th eNB, where the interleaver information of the cell corresponding to the second eNB is sent by the second eNB to the first eNB through the X2 interface;

A processor configured to perform iterative detection based on the interleaver information of the cell corresponding to the second eNB and the stored interleaver information of the cell corresponding to the first eNB, and obtain the interleaver information sent by the first eNB to the cell corresponding to the first eNB. UE information;

A bus is used to connect the receiver and the processor, and the receiver and the processor complete communication with each other through the bus.

23. The UE according to claim 22, characterized in that,

The receiver is also configured to receive the iterative detection reference information of the cell corresponding to the second eNB sent by the first eNB. The iterative detection reference information of the cell corresponding to the second eNB is sent by the second eNB to the third eNB through the X2 interface. ― of eNB;

The processor is specifically configured to perform iterative detection based on the iterative detection reference information of the cell corresponding to the second eNB, the interleaver information of the cell corresponding to the second eNB, and the stored interleaver information of the cell corresponding to the first eNB.

24. The UE according to claim 22 or 23, characterized in that the iterative detection reference information includes any one or a combination of the following information: