CN109245810B - Communication processing method, base station and mobile communication terminal - Google Patents

Communication processing method, base station and mobile communication terminal Download PDF

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Publication number
CN109245810B
CN109245810B CN201710557450.4A CN201710557450A CN109245810B CN 109245810 B CN109245810 B CN 109245810B CN 201710557450 A CN201710557450 A CN 201710557450A CN 109245810 B CN109245810 B CN 109245810B
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base station
codebook
mobile communication
communication terminal
codebook set
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CN109245810A (en
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孙奇
张思明
韩双锋
易芝玲
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0478—Special codebook structures directed to feedback optimisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

Abstract

The invention provides a communication processing method, a base station and a mobile communication terminal, wherein the base station stores a first codebook set of the base station, and the method comprises the following steps: receiving indication information sent by a mobile communication terminal, wherein the indication information is used for indicating that: the codebook set corresponding to the base station stores information in the mobile communication terminal; and when the mobile communication terminal is judged not to store the first codebook set according to the indication information, sending codebook issuing information to the mobile communication terminal, wherein the codebook issuing information carries the first codebook set. Therefore, when the mobile communication terminal does not store the first codebook set, the base station sends the codebook sending information carrying the first codebook set to the mobile communication terminal, and the base station sends the own codebook set, so that the mobile communication terminal and the base station have a codebook set with stronger correspondence, and the transmission performance is improved.

Description

Communication processing method, base station and mobile communication terminal
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a communication processing method, a base station, and a mobile communication terminal.
Background
The linear precoding techniques in the existing LTE (Long Term Evolution) are mainly classified into non-codebook precoding and codebook-based precoding techniques. For the codebook-based precoding technology, a codebook set used by a base station and a user under different antenna numbers and channel ranks is preset in a protocol, the user selects a precoding matrix in a preset precoding matrix codebook by using channel state information obtained by estimation and prediction at a receiving end, and the sequence number of the selected precoding matrix is fed back to the base station.
However, in the process of communication between the existing mobile communication terminal and different base stations, the codebook sets used by the base station and the mobile communication terminal are fixed, and the selection of the codebook in the codebook set is only based on two parameters, namely the number of antennas and the channel rank, which results in that the improvement of the transmission performance is greatly influenced.
Disclosure of Invention
Embodiments of the present invention provide a communication processing method, a base station, and a mobile communication terminal, so as to solve the problem that the improvement of transmission performance between the mobile communication terminal and the base station is greatly affected.
The embodiment of the invention provides a communication processing method, which is used for a base station, wherein the base station stores a first codebook set of the base station, and the communication processing method comprises the following steps:
receiving indication information sent by a mobile communication terminal, wherein the indication information is used for indicating that: the codebook set corresponding to the base station stores information in the mobile communication terminal;
and when the mobile communication terminal is judged not to store the first codebook set according to the indication information, sending codebook issuing information to the mobile communication terminal, wherein the codebook issuing information carries the first codebook set.
The embodiment of the invention also provides a communication processing method, which is used for the mobile communication terminal and comprises the following steps:
sending an indication message to the target base station, wherein the indication message is used for indicating: the storage information of the codebook set corresponding to the target base station in the mobile communication terminal;
receiving codebook issuing information sent by a target base station when the mobile communication terminal judges that the current first codebook set of the target base station is not stored according to the indication information, wherein the codebook issuing information carries the first codebook set;
saving the first codebook set.
The embodiment of the present invention further provides a base station, where the base station stores a first codebook set of the base station, and the base station includes a transceiver and a processor, where:
the transceiver is configured to receive indication information sent by a mobile communication terminal, where the indication information is used to indicate: the codebook set corresponding to the base station stores information in the mobile communication terminal;
the transceiver is further configured to send codebook issue information to the mobile communication terminal if the processor determines that the mobile communication terminal does not store the first codebook set according to the indication information, where the codebook issue information carries the first codebook set.
An embodiment of the present invention further provides a mobile communication terminal, where the mobile communication terminal includes:
a transceiver, configured to send an indication message to a target base station, where the indication message indicates: the storage information of the codebook set corresponding to the target base station in the mobile communication terminal;
the transceiver is further configured to receive codebook issuing information sent by the target base station when the target base station determines, according to the indication information, that the current first codebook set of the target base station is not stored in the mobile communication terminal, where the codebook issuing information carries the first codebook set;
a processor configured to store the first codebook set.
An embodiment of the present invention further provides a base station, including: the communication processing method comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the steps in the communication processing method when executing the computer program.
An embodiment of the present invention further provides a mobile communication terminal, including: the communication processing method comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the steps in the communication processing method when executing the computer program.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and the computer program, when executed by a processor, implements the steps in the communication processing method on the base station side or implements the steps in the communication processing method on the mobile communication terminal side.
The technical scheme of the invention at least has the following beneficial effects:
in the embodiment of the invention, when the mobile communication terminal does not store the first codebook set, the base station sends the codebook sending information carrying the first codebook set to the mobile communication terminal, and the first codebook set is the first codebook set of the base station, and the base station sends the own codebook set, so that the mobile communication terminal and the base station have the codebook set with stronger correspondence, and the transmission performance is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart of a communication processing method according to an embodiment of the present invention;
fig. 2 is a flowchart of a communication processing method according to another embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a codebook distribution process in a contention-based random access procedure according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating a codebook distribution flow in a handover procedure of a base station according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a mobile communication terminal according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a base station according to another embodiment of the present invention;
fig. 8 is a schematic structural diagram of a mobile communication terminal according to still another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a communication processing method according to an embodiment of the present invention, where the communication processing method is used in a base station, and the base station stores a first codebook set of the base station, as shown in fig. 1, the method includes the following steps:
step 101, receiving indication information sent by a mobile communication terminal, wherein the indication information is used for indicating: and the codebook set corresponding to the base station stores information in the mobile communication terminal.
And step 102, when the mobile communication terminal is judged not to store the first codebook set according to the indication information, sending codebook issue information to the mobile communication terminal, wherein the codebook issue information carries the first codebook set.
In the embodiment of the present invention, the codebook set corresponding to the base station may be obtained by training. Some constraints can be used in the training process, and the parameters included in the constraints can be at least one of channel information fed back by the user in a long term, channel state information obtained by utilizing uplink pilot frequency estimation, interference measurement information, base station configuration and mobile communication terminal capability.
The channel information fed back by the user for a long term may include channel spatial correlation and channel covariance information, the channel state information obtained by using uplink pilot estimation may include instantaneous channel information, the interference measurement information may include inter-cell interference, the base station configuration may include base station height, pitch angle, antenna configuration, antenna correlation, base station type, maximum transmission power, and the like, and the mobile communication terminal capability may include antenna configuration and the like. Of course, besides these information, other related information may be used for constraint training, and the embodiment of the present invention is not limited thereto.
In the embodiment of the present invention, the Mobile communication terminal may be a Mobile phone, a tablet personal Computer (tablet personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or the like.
Conventionally, a mobile communication terminal uses a predetermined fixed codebook set when communicating with a different base station. In the embodiment of the invention, each base station has a respective codebook set, and the codebook sets corresponding to the base stations can send information to the mobile communication terminal through the codebooks, so that the mobile communication terminal can use the codebook set with stronger correspondence to the base stations when communicating with different base stations, and the transmission performance is improved.
In the embodiments of the present invention, different codebook sets are provided between the base station and the base station, and the codebook set is not changed or may be changed for the same base station, which is described below. When the codebook set of the base station is a constant codebook set, the constant codebook set can be sent to the mobile communication terminal through the codebook, so that the mobile communication terminal and the base station have a codebook set with stronger correspondence to improve the transmission performance; when the codebook set of the base station is changed, which may be caused by some inherent factors of the base station itself, the base station may still send the changed codebook set to the mobile communication terminal through the codebook. The base station issues the own codebook set, so that the codebook set with stronger correspondence between the mobile communication terminal and the base station is provided, and the transmission performance is improved.
Optionally, the indication information further carries first version information of a codebook set corresponding to the base station, which is currently stored by the mobile communication terminal, and the codebook issuing information further carries second version information of the first codebook set.
In the present embodiment, since the respective codebook sets of the base stations are related to a plurality of factors, and some of the factors are changed with time, the codebook sets of the base stations also need to be changed accordingly so as to adapt the codebooks to the base station environment as much as possible. That is, there may be version updates to the same codebook set.
In this case, the indication information also needs to carry version information for the base station to determine whether the mobile communication terminal has the codebook set of the latest version, and if not, the codebook set of the latest version needs to be issued and carries the latest version information, so that the mobile communication terminal does not need to update the codebook set again before the base station updates the codebook set again.
For example: the indication information further carries that the first version information of the codebook set corresponding to the base station currently stored by the mobile communication terminal is 1, and the codebook issuing information further carries that the second version information of the first codebook set is 2, at this time, the second version information may be new version information relative to the first version information. Of course, other ways to represent the version information may be used, such as V1 and V2, or version1 and version2, etc., which are not limited to this embodiment.
Optionally, when it is determined that the mobile communication terminal does not store the first codebook set according to the indication information, sending a codebook issue message to the mobile communication terminal specifically includes:
judging whether the first version information is consistent with the second version information;
and when the first version information is inconsistent with the second version information, sending codebook sending information carrying the first codebook set and the second version set to the mobile communication terminal.
In this embodiment, when the first version information and the second version information are not consistent, the version information indicating the codebook set in the base station does not exist in the mobile communication terminal, and at this time, the codebook issue information carrying the first codebook set and the second version set is sent to the mobile communication terminal, so that the mobile communication terminal can have stronger adaptability and improve transmission performance when communicating with the base station.
Optionally, the method further includes:
updating the first codebook set and the second version information.
In this embodiment, due to the fact that the base station changes a new communication means, a new communication protocol, or a large area change of a cell user covered by the base station, the base station may need to change a new codebook set and new version information to meet different communication requirements, so that better interaction between the base station and the mobile communication terminal is achieved.
Optionally, the codebook issue information is a radio resource control signaling message or a periodic first broadcast message or a second broadcast message triggered based on an event.
In this embodiment, the periodic first broadcast message includes, for example: when the load of the cell is low, the broadcast period can be set to be short so as to ensure that the access user can obtain the codebook corresponding to the site as soon as possible. When the cell load is high, the broadcast overhead should be reduced as much as possible, so that the broadcast period can be reduced. When the base station detects that the number of users needing to send down the codebook set is large within a period of time t0 (such as 1 minute), a short broadcast period can be set. When the user has finished accessing but has not acquired the codebook set information of the access site through the broadcast information, the user may adopt a default codebook set for transmission, and the default codebook set may be a codebook set in the current LTE. The second broadcast message triggered based on the event includes, for example: in t1 (such as 10 seconds or 20 seconds) in a period of time, the base station can count the number of users needing to send the codebook set, and when the number of users exceeds a certain threshold (such as 10), the base station is triggered to broadcast and send codebook set information of the base station.
Optionally, in the first codebook set, the-P of all codewordsi*log(Di/2) or-Pi*log((Di/2)2W +1) is equal, said PiIs the probability of use of the ith codeword, DiAnd W is the minimum distance between the ith code word and other code words, and is the ratio of the average receiving power of the cell to the interference base of the adjacent cell.
In this embodiment, the-P of all codewords can be made in an iterative manneri*log(Di/2) or-Pi*log((Di/2)2W +1) are equal, so that the base station and the mobile communication terminal can have better correspondence, and the transmission performance is improved. The basic criterion of the codebook generating method is that the channel fed back by the mobile communication terminal and the corresponding code word v in the codebookiIs consistent with probability PiAnd code words v in the codebookiClosest distance to other codewords
Figure BDA0001346163070000061
Satisfies the relation-Pi*log(Di/2) equal for any codeword i in the codebook.
The method for generating the codebook specifically by the base station may refer to the following steps:
step 1, generating a basic codebook C according to the number of base station antennas and the transmission correlation, wherein the basic codebook C comprises M unitary matrixes U with equal rotation distanceiAnd an equivalent transmit correlation matrix R, C ═ R × UiThe dimensions are the antenna numbers N x N, UiBy rotation matrix generation, i.e. Ui＝UiRotation matrix of rotation angle
Figure BDA0001346163070000062
Step 2, collecting the feedback information of the historical codebook, and according to the historical PMIs (Precoding Matrix Indicator) fed back by all the access mobile communication terminals, counting the probability P that the code words corresponding to each PMI in the codebook are fed back and selected by the UEiAccording to the probability of each code word and the nearest distance D between other code words and the code word in the original code bookiPerforming calculation of-Pi*log(DiAnd/2), sorting the code words from large to small according to the calculated result values. Wherein, for the code word with the first sequence, the code word is regenerated in the codebookAnd replacing the code word and the front and back adjacent 2 code words by 2 code words, namely averaging the distances between the front and back adjacent two code words of the first ordered code word to generate 2 independent code words. If there is only one adjacent code word, generating 1 independent code word at the distance midpoint between the code word and the adjacent code word to replace the code word and the adjacent code word; and regenerating 4 code words in the codebook for the code word which is sequenced finally, replacing the code word and the front and back adjacent 2 code words, namely averaging the distances between the front and back adjacent two code words of the code word, and generating 4 independent code words. If there is only one adjacent codeword, taking the distance between the codeword and the adjacent codeword to average out to generate 3 independent codewords instead of the codeword and the adjacent codeword.
And 3, returning the regenerated codebook to the step 2 to start iteration until-Pi*log(DiAnd/2) the coincidence is satisfied.
Of course, for the case of neighbor interference floor information, the criterion-Pi*log(Di/2) to-Pi*log((Di/2)2W +1), W is the ratio of the average received power of the cell to the interference base of the adjacent cell, and then the same iteration mode is adopted until P is reachedi*log((Di/2)2W +1) meet unity.
In the embodiment of the invention, when the mobile communication terminal does not store the first codebook set, the base station sends the codebook sending information carrying the first codebook set to the mobile communication terminal, and the base station sends the own codebook set, so that the mobile communication terminal and the base station have the codebook set with stronger correspondence, and the transmission performance is improved.
Referring to fig. 2, fig. 2 is a flowchart of a communication processing method according to an embodiment of the present invention, where the communication processing method is used in a mobile communication terminal, as shown in fig. 2, and includes the following steps:
step 201, sending an indication message to the target base station, where the indication message is used to indicate: and the codebook set corresponding to the target base station stores information in the mobile communication terminal.
Step 202, receiving codebook issuing information sent by the target base station when the mobile communication terminal judges that the current first codebook set of the target base station is not stored according to the indication information, wherein the codebook issuing information carries the first codebook set.
And 203, saving the first codebook set.
In the embodiment of the present invention, the target base station may be a base station initially accessed by the mobile communication terminal, or may also be a base station to which the mobile communication terminal is handed over from one base station to another base station, and the base station after the handover may be understood as the target base station. The codebook set corresponding to the base station has already specifically introduced the process of acquiring the codebook set in step 101, and is not described herein again. The mobile communication terminal stores the first codebook set and issues the own codebook set through the base station, so that the mobile communication terminal and the base station have a codebook set with stronger correspondence, and the transmission performance is improved.
Optionally, the indication information further carries first version information of a codebook set corresponding to the base station and currently stored by the mobile communication terminal, and the codebook delivery information further carries second version information of the first codebook set, where the communication processing method further includes:
and saving the second version information.
In this embodiment, the mobile communication terminal stores the second version information, and can determine the version information of the mobile communication terminal itself, and when the mobile communication terminal itself does not include the second version information, the mobile communication terminal can update its own codebook set using the second version information, so that the mobile communication terminal and the target base station can better correspond to each other, and the transmission performance is improved.
Optionally, the sending of the indication information to the target base station specifically includes:
determining an identifier of the target base station;
searching a locally stored base station list according to the identification of the target base station, wherein the base station in the base station list is a base station which stores a corresponding codebook set and version information in the mobile communication terminal;
and when the base station list comprises the identification of the target base station, sending the version information of the codebook set corresponding to the searched target base station, otherwise, sending default version information.
For example, a user may have passed several base stations from home to work and the identities of the several base stations may be stored in a list of base stations. If the mobile communication terminal is on duty only daily, the base station list includes the identifications of the base stations, so that the version information of the codebook set corresponding to the searched target base station can be sent to the base station, and the base station does not need to send the version information of the codebook set of the base station to the mobile communication terminal. If the user goes to an other place on a certain day, the base station list has no identifier of the base station of the other place, at the moment, the mobile communication terminal sends default version information to the base station, and the base station of the other place can send the codebook set of the user and the version information corresponding to the codebook set to the mobile communication terminal, so that the user can also make the mobile communication terminal and the base station have the codebook set with better correspondence at the other place, and the transmission performance is improved.
In this embodiment, the base station identifier may indicate a different base station by 1, 2, 3, or another number, or may indicate a different base station by a, b, c, or another letter. The default version information may be sent by sending a "0" to indicate the default version information, or may be a certain identifier (e.g., null) optionally defined by the user to indicate the default version information, etc. In this way, when the base station list includes the identifier of the target base station, the version information of the codebook set corresponding to the searched target base station is sent, otherwise, the default version information is sent, and the target base station can definitely know the codebook set and the version information of the mobile communication terminal, so that the target base station can make different strategies according to different conditions, and the better correspondence between the mobile communication terminal and the target base station is facilitated.
Optionally, the method further includes:
and when the base station list does not comprise the identification of the target base station, adding the identification of the target base station to the base station list.
In this embodiment, the identifier of the target base station is added to the base station list, so that the mobile communication terminal can quickly find the target base station, thereby interacting with the target base station. For better understanding of the interaction process between the mobile communication terminal and the base station, reference may be made to fig. 3 and fig. 4, where fig. 3 is a schematic diagram of a codebook distribution flow in a contention-based random access process, and fig. 4 is a schematic diagram of a codebook distribution flow in a base station handover process. As can be seen in fig. 3, the mobile communication terminal first sends a random access message 1 to the target base station, and after receiving the random access message 1, the target base station returns a message 2 to the mobile communication terminal, where the message 2 may carry a base station identifier of the target base station. After receiving the message 2, the mobile communication terminal may check whether the base station list includes the base station identifier of the target base station according to the base station identifier in the message 2. Under the condition that the base station identification of the target base station exists, the codebook set corresponding to the base station and the version information of the codebook set in the base station list of the mobile communication terminal can be checked. The mobile communication terminal sends a message 3 to the target base station, wherein the message 3 may include version information of a codebook set corresponding to the base station in a base station list of the mobile communication terminal, so that the target base station can judge whether the version information is consistent with the version information of the codebook set of the target base station according to the version information reported by the mobile communication terminal, and issue the codebook set of the target base station and the version information corresponding to the codebook set to the mobile communication terminal under the condition of inconsistency. The mobile communication terminal can store the distributed codebook set into the local and record the current base station identification and the version information of the codebook set; and if the mobile communication terminal has the base station identification of the target base station and the corresponding old codebook set locally, replacing the old codebook set with the new codebook set and updating the version information of the codebook set.
If the base station interacting with the mobile communication terminal is changed, we can refer to fig. 4, and fig. 4 is a schematic diagram of a codebook distribution flow in the base station switching process. In fig. 4 we can see that the mobile communication terminal is handed over from the source base station to the target base station. For example, when a mobile communication terminal moves from cell 1 to cell 2, a base station communicating with the mobile communication terminal is also handed over, and at this time, the base station in cell 1 can be understood as a source base station, and the base station in cell 2 can be understood as a target base station. Firstly, a source base station sends a measurement control message to a mobile communication terminal, and the mobile communication terminal uploads a measurement report message to the source base station after receiving the measurement control message. At this time, the source base station switches the decision and sends a switching request to the target base station. When receiving the handover request, the target base station may accept the control, so as to send a handover request acknowledge character to the source base station, so that the source base station may send a radio connection reconfiguration message containing mobility control information to the mobile communication terminal, where the message may include a base station identifier of the target base station. At this time, the mobile communication terminal will leave the source cell and establish synchronization with the target cell (the source cell can be understood as a cell covered by the signal of the source base station, and the target cell can be understood as a cell covered by the signal of the target base station), and the source base station will transmit the data being transmitted in the buffer to the target base station. The mobile communication terminal may check whether the base station list includes the base station identifier of the target base station according to the base station identifier of the target base station. Under the condition that the base station identification of the target base station exists, the codebook set corresponding to the base station and the version information of the codebook set in the base station list of the mobile communication terminal can be checked. The mobile communication terminal sends the version information of the codebook set corresponding to the base station in the base station list including the mobile communication terminal to the target base station, so that the target base station can judge whether the version information is consistent with the version information of the codebook set of the target base station or not according to the version information reported by the mobile communication terminal, and the codebook set of the target base station and the version information corresponding to the codebook set are sent to the mobile communication terminal under the condition of inconsistency. In this process, the target base station may issue the codebook set of the target base station and the version information corresponding to the codebook set to the mobile communication terminal in a manner of uplink resource allocation and terminal timing. The mobile communication terminal can store the distributed codebook set into the local and record the current base station identification and the version information of the codebook set; and if the mobile communication terminal has the base station identification of the target base station and the corresponding old codebook set locally, replacing the old codebook set with the new codebook set and updating the version information of the codebook set. Meanwhile, the mobile communication terminal may send a connection reconfiguration complete message to the target base station, and after receiving the message, the target base station may send a path switching request or a user plane update request to the network element, so that the network element may switch a downlink data path and send a path switching request confirm character or a user plane update request confirm character to the target base station. After receiving the confirmation character, the target base station may send a terminal context release message to the source base station, so that the source base station releases resources.
Optionally, when the base station list does not include the identifier of the target base station, adding the identifier of the target base station to the base station list specifically includes:
judging whether the number of base stations in the base station list exceeds a preset threshold or not;
and when the number of the base stations in the base station list does not exceed a preset threshold, directly adding the identifier of the target base station to the base station list, otherwise deleting a second codebook set with the least use times in a preset time period, version information corresponding to the second codebook set and the base station identifier corresponding to the second codebook set in the base station list, and adding the identifier of the target base station to the base station list.
In this embodiment, the preset threshold may be 10, 30, or 50, or any user-defined value. The predetermined time period may be 3 days, 1 week, 1 month or any custom time period. By controlling the number of the base stations in the base station list not to exceed a preset threshold, the storage space of the mobile communication terminal is effectively managed, and the second codebook set with the least use times in a preset time period, the version information corresponding to the second codebook set and the base station identification corresponding to the second codebook set in the base station list are deleted, so that the management of the mobile communication terminal on the storage space is more intelligent, and the waste of the storage space is avoided.
Optionally, the codebook issue information is a radio resource control signaling message or a periodic first broadcast message or a second broadcast message triggered based on an event.
In this embodiment, the periodic first broadcast message includes, for example: when the load of the cell is low, the broadcast period can be set to be short so as to ensure that the access user can obtain the codebook corresponding to the site as soon as possible. When the cell load is high, the broadcast overhead should be reduced as much as possible, so that the broadcast period can be reduced. When the base station detects that the number of users needing to send down the codebook set is large within a period of time t0 (such as 1 minute), a short broadcast period can be set. When the user has finished accessing but has not acquired the codebook set information of the access site through the broadcast information, the user may adopt a default codebook set for transmission, and the default codebook set may be a codebook set in the current LTE. The second broadcast message triggered based on the event includes, for example: in t1 (such as 10 seconds or 20 seconds) in a period of time, the base station can count the number of users needing to send the codebook set, and when the number of users exceeds a certain threshold (such as 10), the base station is triggered to broadcast and send codebook set information of the base station.
Optionally, in the first codebook set, the-P of all codewordsi*log(Di/2) or-Pi*log((Di/2)2W +1) is equal, said PiIs the probability of use of the ith codeword, DiAnd W is the minimum distance between the ith code word and other code words, and is the ratio of the average receiving power of the cell to the interference base of the adjacent cell.
In this embodiment, the-P of all codewords can be made in an iterative manneri*log(Di/2) or-Pi*log((Di/2)2W +1) are equal, so that the base station and the mobile communication terminal can have better correspondence, and the transmission performance is improved. The basic criterion of the codebook generating method is that the channel fed back by the mobile communication terminal and the corresponding code word v in the codebookiIs consistent with probability PiAnd code words v in the codebookiClosest distance to other codewords
Figure BDA0001346163070000121
Satisfies the relation-Pi*log(Di/2) equal for any codeword i in the codebook.
The method for generating the codebook specifically by the base station may refer to the following steps:
step 1, generating a basic codebook C according to the number of base station antennas and the transmission correlation, wherein the basic codebook C comprises M unitary matrixes U with equal rotation distanceiAnd an equivalent transmit correlation matrix R, C ═ R × UiThe dimensions are the antenna numbers N x N, UiBy rotation matrix generation, i.e. Ui＝UiRotation matrix of rotation angle
Figure BDA0001346163070000122
Step 2, collecting the feedback information of the historical codebook, and according to the historical PMIs (Precoding Matrix Indicator) fed back by all the access mobile communication terminals, counting the probability P that the code words corresponding to each PMI in the codebook are fed back and selected by the UEiAccording to the probability of each code word and the nearest distance D between other code words and the code word in the original code bookiPerforming calculation of-Pi*log(DiAnd/2), sorting the code words from large to small according to the calculated result values. For the first code word, 2 code words are regenerated in the codebook to replace the code word and the front and back adjacent 2 code words, that is, the distance between the two code words adjacent to the front and back of the first code word is averaged to generate 2 independent code words. If there is only one adjacent code word, generating 1 independent code word at the distance midpoint between the code word and the adjacent code word to replace the code word and the adjacent code word; and regenerating 4 code words in the codebook for the code word which is sequenced finally, replacing the code word and the front and back adjacent 2 code words, namely averaging the distances between the front and back adjacent two code words of the code word, and generating 4 independent code words. If there is only one adjacent codeword, taking the distance between the codeword and the adjacent codeword to average out to generate 3 independent codewords instead of the codeword and the adjacent codeword.
Step 3, the regenerated codebook returns to step 2 to start iteration until-Pi*log(DiAnd/2) the coincidence is satisfied.
Of course, for the case of neighbor interference floor information, the criterion-Pi*log(Di/2) to-Pi*log((Di/2)2W +1), W is the ratio of the average received power of the cell to the interference base of the adjacent cell, and then the same method is adopteduntil-Pi*log((Di/2)2W +1) meet unity.
It should be noted that, this embodiment is taken as an implementation of the mobile communication terminal corresponding to the embodiment shown in fig. 1, and specific implementation thereof may refer to the relevant description of the embodiment shown in fig. 1, so that, in order to avoid repeated description, the embodiment is not described again, and the same beneficial effects may also be achieved.
Referring to fig. 5, an embodiment of the present invention provides a base station, where the base station stores a first codebook set of the base station, and as shown in fig. 5, a base station 500 includes a transceiver 501 and a processor 502, where:
the transceiver 501 is configured to receive indication information sent by a mobile communication terminal, where the indication information is used to indicate: the codebook set corresponding to the base station stores information in the mobile communication terminal;
the transceiver 501 is further configured to send codebook issue information to the mobile communication terminal if the processor 502 determines that the first codebook set is not stored in the mobile communication terminal according to the indication information, where the codebook issue information carries the first codebook set.
Optionally, the indication information further carries first version information of a codebook set corresponding to the base station, which is currently stored by the mobile communication terminal, and the codebook issuing information further carries second version information of the first codebook set.
Optionally, the processor 502 is further configured to determine whether the first version information and the second version information are consistent;
the transceiver 501 is specifically configured to send codebook issue information carrying the first codebook set and the second codebook set to the mobile communication terminal when the processor 502 determines that the first version information and the second version information are inconsistent.
Optionally, the processor 502 is further configured to update the first codebook set and the second version information.
Optionally, the codebook issue information is a radio resource control signaling message or a periodic first broadcast message or a second broadcast message triggered based on an event.
Optionally, in the first codebook set, the-P of all codewordsi*log(Di/2) or-Pi*log((Di/2)2W +1) is equal, said PiIs the probability of use of the ith codeword, DiAnd W is the minimum distance between the ith code word and other code words, and is the ratio of the average receiving power of the cell to the interference base of the adjacent cell.
It should be noted that, in this embodiment, the base station 500 may be a base station of any implementation manner in the method embodiment of the present invention, and any implementation manner of the base station in the method embodiment of the present invention may be implemented by the base station 500 in this embodiment, and the same beneficial effects are achieved, and details are not described here.
Referring to fig. 6, an embodiment of the present invention provides a mobile communication terminal, as shown in fig. 6, the mobile communication terminal 600 includes:
a transceiver 601, configured to send an indication information to a target base station, where the indication information is used to indicate: the storage information of the codebook set corresponding to the target base station in the mobile communication terminal;
the transceiver 601 is further configured to receive codebook issuing information sent by the target base station when it is determined, according to the indication information, that the current first codebook set of the target base station is not stored in the mobile communication terminal, where the codebook issuing information carries the first codebook set;
a processor 602 configured to store the first codebook set.
Optionally, the indication information further carries first version information of a codebook set corresponding to the base station, which is currently stored by the mobile communication terminal, the codebook issue information further carries second version information of the first codebook set, and the processor is further configured to store the second version information.
Optionally, the processor 602 is further configured to determine an identity of the target base station; searching a locally stored base station list according to the identification of the target base station, wherein the base station in the base station list is a base station which stores a corresponding codebook set and version information in the mobile communication terminal;
the transceiver 601 is specifically configured to send the version information of the codebook set corresponding to the found target base station when the base station list includes the identifier of the target base station, and otherwise send default version information.
Optionally, the processor 602 is further configured to add the identifier of the target base station to the base station list when the base station list does not include the identifier of the target base station.
Optionally, the processor 602 is specifically configured to determine whether the number of base stations in the base station list exceeds a preset threshold; and when the number of the base stations in the base station list does not exceed a preset threshold, directly adding the identifier of the target base station to the base station list, otherwise deleting a second codebook set with the least use times in a preset time period, version information corresponding to the second codebook set and the base station identifier corresponding to the second codebook set in the base station list, and adding the identifier of the target base station to the base station list.
Optionally, the codebook issue information is a radio resource control signaling message or a periodic first broadcast message or a second broadcast message triggered based on an event.
Optionally, in the first codebook set, the-P of all codewordsi*log(Di/2) or-Pi*log((Di/2)2W +1) is equal, said PiIs the probability of use of the ith codeword, DiAnd W is the minimum distance between the ith code word and other code words, and is the ratio of the average receiving power of the cell to the interference base of the adjacent cell.
It should be noted that, in this embodiment, the mobile communication terminal 600 may be a mobile communication terminal according to any implementation manner in the method embodiment of the present invention, and any implementation manner of the mobile communication terminal in the method embodiment of the present invention may be implemented by the mobile communication terminal 600 in this embodiment, so as to achieve the same beneficial effects, and details are not described here.
Referring to fig. 7, fig. 7 is a base station according to another embodiment of the present invention, where the base station stores a first codebook set of the base station. As shown in fig. 7, the base station 700 comprises a memory 701, a processor 702 and a computer program 7011 stored on the memory 701 and operable on the processor 702, wherein the computer program 7011, when executed by the processor 702, performs the steps of:
receiving indication information sent by a mobile communication terminal, wherein the indication information is used for indicating that: the codebook set corresponding to the base station stores information in the mobile communication terminal;
and when the mobile communication terminal is judged not to store the first codebook set according to the indication information, sending codebook issuing information to the mobile communication terminal, wherein the codebook issuing information carries the first codebook set.
Optionally, the indication information further carries first version information of a codebook set corresponding to the base station, which is currently stored by the mobile communication terminal, and the codebook issuing information further carries second version information of the first codebook set.
Optionally, when the processor 702 executes the judgment that the mobile communication terminal does not store the first codebook set according to the indication information, sending a codebook issue message to the mobile communication terminal specifically includes:
judging whether the first version information is consistent with the second version information;
and when the first version information is inconsistent with the second version information, sending codebook sending information carrying the first codebook set and the second version set to the mobile communication terminal.
Optionally, the processor 702 is further configured to:
updating the first codebook set and the second version information.
Optionally, the codebook issue information is a radio resource control signaling message or a periodic first broadcast message or a second broadcast message triggered based on an event.
Optionally, in the first codebook set, the-P of all codewordsi*log(Di/2) or-Pi*log((Di/2)2W +1) is equal, said PiIs the probability of use of the ith codeword, DiAnd W is the minimum distance between the ith code word and other code words, and is the ratio of the average receiving power of the cell to the interference base of the adjacent cell.
It should be noted that, in this embodiment, the base station may be a base station of any implementation manner in the method embodiment in the present invention, and any implementation manner of the base station in the method embodiment in the present invention may be implemented by the base station in this embodiment, and the same beneficial effects are achieved, and details are not described here.
Referring to fig. 8, fig. 8 is a mobile communication terminal according to another embodiment of the present invention. As shown in fig. 8, the mobile communication terminal 800 comprises a memory 801, a processor 802 and a computer program 8011 stored in the memory 801 and operable on the processor 802, the computer program 8011 realizes the following steps when being executed by the processor 802:
sending an indication message to the target base station, wherein the indication message is used for indicating: the storage information of the codebook set corresponding to the target base station in the mobile communication terminal;
receiving codebook issuing information sent by a target base station when the mobile communication terminal judges that the current first codebook set of the target base station is not stored according to the indication information, wherein the codebook issuing information carries the first codebook set;
saving the first codebook set.
Optionally, the indication information further carries first version information of a codebook set corresponding to the base station, which is currently stored by the mobile communication terminal, the codebook issue information further carries second version information of the first codebook set, and the processor 802 is further configured to:
and saving the second version information.
Optionally, the executing, by the processor 802, of sending an indication information to the target base station specifically includes:
determining an identifier of the target base station;
searching a locally stored base station list according to the identification of the target base station, wherein the base station in the base station list is a base station which stores a corresponding codebook set and version information in the mobile communication terminal;
and when the base station list comprises the identification of the target base station, sending the version information of the codebook set corresponding to the searched target base station, otherwise, sending default version information.
Optionally, the processor 802 is further configured to:
and when the base station list does not comprise the identification of the target base station, adding the identification of the target base station to the base station list.
Optionally, when the base station list does not include the identifier of the target base station, the adding, by the processor 802, the identifier of the target base station to the base station list specifically includes:
judging whether the number of base stations in the base station list exceeds a preset threshold or not;
and when the number of the base stations in the base station list does not exceed a preset threshold, directly adding the identifier of the target base station to the base station list, otherwise deleting a second codebook set with the least use times in a preset time period, version information corresponding to the second codebook set and the base station identifier corresponding to the second codebook set in the base station list, and adding the identifier of the target base station to the base station list.
Optionally, the codebook issue information is a radio resource control signaling message or a periodic first broadcast message or a second broadcast message triggered based on an event.
Optionally, in the first codebook set, the-P of all codewordsi*log(Di/2) or-Pi*log((Di/2)2W +1) is equal, said PiIs the probability of use of the ith codeword, DiAnd W is the minimum distance between the ith code word and other code words, and is the ratio of the average receiving power of the cell to the interference base of the adjacent cell.
It should be noted that, in this embodiment, the mobile communication terminal may be a mobile communication terminal in any implementation manner in the method embodiment of the present invention, and any implementation manner of the mobile communication terminal in the method embodiment of the present invention may be implemented by the mobile communication terminal in this embodiment, so as to achieve the same beneficial effects, and details are not described here again.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements steps in a communication processing method on a base station side provided in an embodiment of the present invention, or implements steps in a communication processing method on a mobile communication terminal side provided in an embodiment of the present invention.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the transceiving method according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (29)

1. A communication processing method for a base station, wherein the base station stores a first codebook set of the base station, the communication processing method comprising:
receiving indication information sent by a mobile communication terminal, wherein the indication information is used for indicating that: the codebook set corresponding to the base station stores information in the mobile communication terminal; the codebook set corresponding to the base station is obtained by training using constraint conditions, and comprises: generating a basic codebook according to the number of base station antennas and the transmission correlation, regenerating the codebook according to historical Precoding Matrix Indicator (PMI) fed back by all access mobile communication terminals, and iteratively calculating the regenerated codebook until the constraint condition is met;
and when the mobile communication terminal is judged not to store the first codebook set according to the indication information, sending codebook issuing information to the mobile communication terminal, wherein the codebook issuing information carries the first codebook set.
2. The communication processing method according to claim 1, wherein the indication information further carries first version information of a codebook set corresponding to the base station and currently stored by the mobile communication terminal, and the codebook issue information further carries second version information of the first codebook set.
3. The communication processing method according to claim 2, wherein the sending a codebook issue message to the mobile communication terminal when it is determined that the mobile communication terminal does not store the first codebook set according to the indication message specifically includes:
judging whether the first version information is consistent with the second version information;
and when the first version information is inconsistent with the second version information, sending codebook issuing information carrying the first codebook set and the second version information to the mobile communication terminal.
4. The communication processing method of claim 2, wherein after the step of sending the codebook issue message to the mobile communication terminal, further comprising:
updating the first codebook set and the second version information.
5. The communication processing method according to any one of claims 1 to 4, wherein the codebook issue information is a radio resource control signaling message or a periodic first broadcast message or a second broadcast message based on event triggering.
6. The communication processing method according to any of claims 1 to 4, wherein-P of all codewords in the first codebook seti*log(Di/2) or-Pi*log((Di/2)2W +1) is equal, said PiIs the probability of use of the ith codeword, DiAnd W is the minimum distance between the ith code word and other code words, and is the ratio of the average receiving power of the cell to the interference base of the adjacent cell.
7. A communication processing method for a mobile communication terminal, the communication processing method comprising:
sending an indication message to the target base station, wherein the indication message is used for indicating: the storage information of the codebook set corresponding to the target base station in the mobile communication terminal; the codebook set corresponding to the base station is obtained by training using constraint conditions, and comprises: generating a basic codebook according to the number of base station antennas and the transmission correlation, regenerating the codebook according to historical Precoding Matrix Indicator (PMI) fed back by all access mobile communication terminals, and iteratively calculating the regenerated codebook until the constraint condition is met;
receiving codebook issuing information sent by a target base station when the mobile communication terminal judges that the current first codebook set of the target base station is not stored according to the indication information, wherein the codebook issuing information carries the first codebook set;
saving the first codebook set.
8. The communication processing method according to claim 7, wherein the indication information further carries first version information of a codebook set corresponding to the base station and currently stored by the mobile communication terminal, and the codebook issue information further carries second version information of the first codebook set, and the communication processing method further comprises:
and saving the second version information.
9. The communication processing method of claim 8, wherein the sending an indication message to the target base station specifically comprises:
determining an identifier of the target base station;
searching a locally stored base station list according to the identification of the target base station, wherein the base station in the base station list is a base station which stores a corresponding codebook set and version information in the mobile communication terminal;
and when the base station list comprises the identification of the target base station, sending the version information of the codebook set corresponding to the searched target base station, otherwise, sending default version information.
10. The communication processing method according to claim 9, further comprising:
and when the base station list does not comprise the identification of the target base station, adding the identification of the target base station to the base station list.
11. The communication processing method according to claim 10, wherein when the base station list does not include the identifier of the target base station, adding the identifier of the target base station to the base station list specifically includes:
judging whether the number of base stations in the base station list exceeds a preset threshold or not;
and when the number of the base stations in the base station list does not exceed a preset threshold, directly adding the identifier of the target base station to the base station list, otherwise deleting a second codebook set with the least use times in a preset time period, version information corresponding to the second codebook set and the base station identifier corresponding to the second codebook set in the base station list, and adding the identifier of the target base station to the base station list.
12. The communication processing method according to any one of claims 7 to 11, wherein the codebook issue information is a radio resource control signaling message or a periodic first broadcast message or a second broadcast message based on event triggering.
13. The communication processing method according to any of claims 7 to 11, wherein-P of all codewords in the first codebook seti*log(Di/2) or-Pi*log((Di/2)2W +1) is equal, said PiIs the probability of use of the ith codeword, DiAnd W is the minimum distance between the ith code word and other code words, and is the ratio of the average receiving power of the cell to the interference base of the adjacent cell.
14. A base station, wherein the base station stores a first codebook set of its own, wherein the base station comprises a transceiver and a processor, and wherein:
the transceiver is configured to receive indication information sent by a mobile communication terminal, where the indication information is used to indicate: the codebook set corresponding to the base station stores information in the mobile communication terminal; the codebook set corresponding to the base station is obtained by training using constraint conditions, and comprises: generating a basic codebook according to the number of base station antennas and the transmission correlation, regenerating the codebook according to historical Precoding Matrix Indicator (PMI) fed back by all access mobile communication terminals, and iteratively calculating the regenerated codebook until the constraint condition is met;
the transceiver is further configured to send codebook issue information to the mobile communication terminal if the processor determines that the mobile communication terminal does not store the first codebook set according to the indication information, where the codebook issue information carries the first codebook set.
15. The base station of claim 14, wherein the indication information further carries first version information of a codebook set corresponding to the base station and currently stored by the mobile communication terminal, and the codebook issue information further carries second version information of the first codebook set.
16. The base station of claim 15, wherein the processor is further configured to determine whether the first version information and the second version information are consistent;
the transceiver is specifically configured to send codebook issue information carrying the first codebook set and the second version information to the mobile communication terminal when the processor determines that the first version information and the second version information are inconsistent.
17. The base station of claim 15, wherein the processor is further configured to update the first codebook set and the second version information.
18. The base station of any of claims 14 to 17, wherein the codebook issue message is a radio resource control signaling message or a periodic first broadcast message or a second broadcast message based on event triggering.
19. Base station according to any of claims 14 to 17, characterized in that said first code is-P of all codewords in this seti*log(Di/2) or-Pi*log((Di/2)2W +1) is equal, said PiIs the probability of use of the ith codeword, DiAnd W is the minimum distance between the ith code word and other code words, and is the ratio of the average receiving power of the cell to the interference base of the adjacent cell.
20. A mobile communication terminal, characterized in that the mobile communication terminal comprises:
a transceiver, configured to send an indication message to a target base station, where the indication message indicates: the storage information of the codebook set corresponding to the target base station in the mobile communication terminal; the codebook set corresponding to the base station is obtained by training using constraint conditions, and comprises: generating a basic codebook according to the number of base station antennas and the transmission correlation, regenerating the codebook according to historical Precoding Matrix Indicator (PMI) fed back by all access mobile communication terminals, and iteratively calculating the regenerated codebook until the constraint condition is met;
the transceiver is further configured to receive codebook issuing information sent by the target base station when the target base station determines, according to the indication information, that the current first codebook set of the target base station is not stored in the mobile communication terminal, where the codebook issuing information carries the first codebook set;
a processor configured to store the first codebook set.
21. The mobile communication terminal of claim 20, wherein the indication information further carries first version information of a codebook set corresponding to the base station and currently stored in the mobile communication terminal, the codebook issue information further carries second version information of the first codebook set, and the processor is further configured to store the second version information.
22. The mobile communication terminal of claim 21, wherein the processor is further configured to determine an identity of the target base station; searching a locally stored base station list according to the identification of the target base station, wherein the base station in the base station list is a base station which stores a corresponding codebook set and version information in the mobile communication terminal;
the transceiver is specifically configured to send version information of the codebook set corresponding to the found target base station when the base station list includes the identifier of the target base station, and otherwise, send default version information.
23. The mobile communication terminal of claim 22, wherein the processor is further configured to add the identity of the target base station to the list of base stations when the list of base stations does not include the identity of the target base station.
24. The mobile communication terminal according to claim 23, wherein the processor is specifically configured to determine whether the number of base stations in the base station list exceeds a preset threshold; and when the number of the base stations in the base station list does not exceed a preset threshold, directly adding the identifier of the target base station to the base station list, otherwise deleting a second codebook set with the least use times in a preset time period, version information corresponding to the second codebook set and the base station identifier corresponding to the second codebook set in the base station list, and adding the identifier of the target base station to the base station list.
25. The mobile communication terminal according to any of claims 20 to 24, wherein the codebook issue information is a radio resource control signaling message or a periodic first broadcast message or a second broadcast message based on event triggering.
26. The mobile communication terminal according to any of claims 20 to 24, wherein-P of all codewords in the first codebook seti*log(Di/2) or-Pi*log((Di/2)2W +1) is equal, said PiIs the probability of use of the ith codeword, DiIs the minimum distance between the ith code word and other code words, and W is the average received power of the cellAnd the ratio of the neighboring interference bases.
27. A base station, comprising: memory, processor and computer program stored on the memory and executable on the processor, the processor implementing the steps in the communication processing method according to any one of claims 1 to 6 when executing the computer program.
28. A mobile communication terminal, comprising: memory, processor and computer program stored on the memory and executable on the processor, the processor implementing the steps in the communication processing method according to any one of claims 7 to 13 when executing the computer program.
29. A computer-readable storage medium, characterized in that a computer program is stored thereon, which, when being executed by a processor, implements the steps in the communication processing method according to any one of claims 1 to 6, or implements the steps in the communication processing method according to any one of claims 7 to 13.
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