CN106712869B - Method and device for measuring channels between base stations - Google Patents
Method and device for measuring channels between base stations Download PDFInfo
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- CN106712869B CN106712869B CN201510782882.6A CN201510782882A CN106712869B CN 106712869 B CN106712869 B CN 106712869B CN 201510782882 A CN201510782882 A CN 201510782882A CN 106712869 B CN106712869 B CN 106712869B
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Abstract
The embodiment of the invention discloses a method and a device for measuring channels between base stations, wherein the method comprises the following steps: determining the number of time resources configured by each base station in a measurement set; determining the total number of transmitting channels of all base stations in a measurement set; determining the working state of each base station in the measurement set during channel measurement between the base stations according to the relationship between the total number of the transmitting channels and the number of the time resources; the working state is a full duplex state, a receiving half duplex state or a transmitting half duplex state.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a method and an apparatus for measuring channels between base stations.
Background
Meanwhile, in the co-frequency full duplex, the base station simultaneously transmits downlink data and receives uplink data in the same frequency band, so that theoretically, the spectrum efficiency can be doubled, and further, the system capacity is improved to meet the requirement of a large bandwidth of the fifth Generation (5Generation, 5G) in the future. In practical applications, in order to obtain high capacity gain of simultaneous co-frequency full duplex, the problem of strong and complex interference caused by full duplex communication needs to be solved.
Firstly, a transmitting link of a base station brings strong self-interference to a receiving link of the base station;
secondly, interference between uplink signals and downlink signals is caused by the introduction of full duplex in the cell;
finally, the inter-cell interference also becomes more serious, and the interference existing in the existing Time Division Duplex (TDD) system is mainly the interference of the inter-cell downlink signal to the downlink signal and the interference of the inter-cell uplink signal to the uplink signal. The interference between the uplink and downlink signals between cells is further introduced in the full duplex system on the basis of the interference existing in the original TDD system. Specifically, an uplink signal transmitted by the terminal may generate interference on a downlink signal of an adjacent cell; the downlink signal transmitted by the base station may interfere with the uplink signal of the neighboring cell. As shown in fig. 1, the BS1 and the BS2 interfere with each other, and uplink transmission of the terminal interferes with downlink transmission of the base station; which in turn causes the uplink terminal and the downlink terminal to interfere with each other.
In the prior art, various methods for suppressing interference are proposed in order to suppress interference, but all the currently proposed interference suppression methods need to obtain interference channel information between base stations, however, no scheme for measuring channels between base stations has been proposed in the prior art.
Disclosure of Invention
In view of the above, embodiments of the present invention are directed to a method and an apparatus for measuring a channel between base stations, which at least partially solve the above problems.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a first aspect of an embodiment of the present invention provides a method for measuring a channel between base stations, where the method includes:
determining the number of time resources configured by each base station in a measurement set;
determining the total number of transmitting channels of all base stations in a measurement set;
determining the working state of each base station in the measurement set during channel measurement between the base stations according to the relationship between the total number of the transmitting channels and the number of the time resources;
the working state is a full duplex state, a receiving half duplex state or a transmitting half duplex state.
Based on the above scheme, the determining the total number of transmission channels of all base stations in the measurement set includes:
using formulas
Wherein L is the total number of the transmitting channels; k is the number of the base stations in the measurement set; the above-mentionedkThe number of transmission channels of the kth base station in the measurement set is obtained;
wherein L is less than or equal to M + N-1; wherein, the M is the number of frequency resources configured for the measurement set; the N is the number of time resources configured for the measurement set; and both M and N are integers not less than 1.
Based on the above scheme, the determining the working state of each base station in the measurement set during channel measurement between base stations according to the relationship between the total number of the transmission channels and the number of the time resources includes:
and if the L is less than or equal to N, determining that 1 transmitting base station is in a transmitting half-duplex state for transmitting the reference signal in each time resource, and determining that the base station which does not transmit the reference signal is in a receiving half-duplex state for receiving the reference signal.
Based on the above scheme, if L is not greater than N, determining that 1 transmitting base station is in a transmitting half-duplex state for transmitting the reference signal and the base station not transmitting the reference signal is in a receiving half-duplex state for receiving the reference signal in each time resource includes:
determining an ith transmitting channel to transmit the reference signal in an ith time resource; wherein the base station to which the ith transmitting channel belongs is in the transmitting half-duplex state; the base station to which the ith transmitting channel does not belong is in the receiving half-duplex state; wherein i is a positive integer not greater than N.
Based on the above scheme, the determining the working state of each base station in the measurement set during channel measurement between base stations according to the relationship between the total number of the transmission channels and the number of the time resources includes:
if the N is less than the L, selecting L +1-N transmitting channels to transmit the reference signal in the 1 st time resource, and determining that the base station which transmits the reference signal is in the full-duplex state and the base station which does not transmit the reference signal is in a receiving half-duplex state for receiving the reference signal.
Based on the above scheme, the determining the working state of each base station in the measurement set during channel measurement between base stations according to the relationship between the total number of the transmission channels and the number of the time resources includes:
determining a jth transmitting channel to transmit the reference signal in a (j + 1) th time resource; wherein the base station to which the jth transmission channel belongs is in the transmission half-duplex state; the base station to which the jth transmission channel does not belong is in the receiving half-duplex state; the jth transmitting channel is a transmitting channel which does not send the reference signal in the 1 st time resource;
wherein j is not greater than a positive integer of N.
A second aspect of the embodiments of the present invention provides an inter-base station channel measurement apparatus, where the apparatus includes:
a first determining unit, configured to determine the number of time resources configured by each base station in the measurement set;
a second determining unit, configured to determine the total number of transmission channels of all base stations in the measurement set;
a third determining unit, configured to determine, according to a relationship between the total number of the transmission channels and the number of the time resources, a working state of each base station in the measurement set during inter-base station channel measurement;
the working state is a full duplex state, a receiving half duplex state or a transmitting half duplex state.
Based on the above, the second determining unit is used for utilizing the formula
Wherein L is the total number of the transmitting channels; k is the number of the base stations in the measurement set; the above-mentionedkThe number of transmission channels of the kth base station in the measurement set is obtained;
wherein L is less than or equal to M + N-1; wherein, the M is the number of frequency resources configured for the measurement set; the N is the number of time resources configured for the measurement set; and both M and N are integers not less than 1.
Based on the foregoing solution, the third determining unit is specifically configured to determine that 1 transmitting base station is in a transmitting half-duplex state for transmitting the reference signal and the base station that does not send the reference signal is in a receiving half-duplex state for receiving the reference signal in each time resource if L is not greater than N.
Based on the above scheme, the third determining unit is specifically configured to determine that the ith transmitting channel transmits the reference signal in the ith time resource; wherein the base station to which the ith transmitting channel belongs is in the transmitting half-duplex state; the base station to which the ith transmitting channel does not belong is in the receiving half-duplex state; wherein i is a positive integer not greater than N.
Based on the foregoing solution, the third determining unit is specifically configured to select L +1-N transmission channels to transmit the reference signal in the 1 st time resource if N is less than L, and determine that a base station that transmits the reference signal is in the full duplex state and a base station that does not transmit the reference signal is in a half duplex receiving state that receives the reference signal.
Based on the above scheme, the third determining unit is configured to determine, within the j +1 th time resource, that the jth transmission channel transmits the reference signal; wherein the base station to which the jth transmission channel belongs is in the transmission half-duplex state; the base station to which the jth transmission channel does not belong is in the receiving half-duplex state; the jth transmitting channel is a transmitting channel which does not send the reference signal in the 1 st time resource;
wherein j is not greater than a positive integer of N.
The method and the device for measuring the channels between the base stations determine the total number of the transmitting channels of the base stations in the measurement set and the number of the time resources configured by the measurement set; and determining the working state of the base station when the channel measurement between the base stations is carried out according to the relation between the number of the time resources and the total number of the transmitting channels. The working state directly determines whether the base station sends signals or receives signals, thereby simply and conveniently realizing the control and management of the measurement of the channels between the base stations and simultaneously making up the blank of the channel measurement between the base stations in the prior art.
Drawings
FIG. 1 is a schematic diagram of a communication system;
fig. 2 is a flowchart illustrating a method for measuring a channel between base stations according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an inter-base station channel measurement apparatus according to an embodiment of the present invention;
fig. 4 to fig. 7 are schematic diagrams illustrating an effect of the inter-base station channel measurement method according to the embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments of the specification.
The first embodiment is as follows:
as shown in fig. 2, this embodiment provides a method for measuring channels between base stations, where the method includes:
step S110: determining the number of time resources configured by each base station in a measurement set;
step S120: determining the total number of transmitting channels of all base stations in a measurement set;
step S130: determining the working state of each base station in the measurement set during channel measurement between the base stations according to the relationship between the total number of the transmitting channels and the number of the time resources;
the working state is a full duplex state, a receiving half duplex state or a transmitting half duplex state.
The method for measuring channels between base stations in this embodiment is applied to a measurement set including at least two base stations. Typically the measurement set is a set that selects base stations with stronger interference between base stations.
In this embodiment, the number of the time resources is the number of the time resources configured to the measurement set for performing inter-base station channel interference measurement. The 1 time resource here may be 1 time slot, and is generally the minimum time unit for performing inter-base station channel measurement. In addition, in one communication system, not only the number of time resources but also frequency resources are allocated. In this embodiment, the number of time resources is the number of time resources commonly configured by each base station in the measurement set. The number of time resources may be a measurement unit that is a time length for performing a channel measurement between base stations, for example, one time slot or several transmission symbols.
The total number of transmit channels for all base stations in the measurement set is determined in step S120. Typically the number of transmit channels is related to the number of antennas at the base station.
In step S130, the operating status of each base station in the measurement set during inter-base station channel measurement is determined according to the relationship between the total number of transmission channels and the number of time resources.
The operation state includes three kinds in the present embodiment. Wherein the full duplex state is that the base station receives signals on one side and transmits signals on the other side. The receiving half-duplex state is that the base station only receives signals and does not send signals. The transmitting half-duplex state is that the base station only transmits signals and does not receive signals.
When the channel measurement between the base stations is carried out, the working state of each base station can be simply and conveniently determined according to the relation between the total number of the transmitting channels and the number of the time resources, so that the control on the channel measurement between the base stations is realized, and the configuration and the control on the channel measurement between the base stations are simply and conveniently realized through the control.
As a further improvement of this embodiment, the step S120 may include:
using formulas
Wherein L is the total number of the transmitting channels; k is the number of the base stations in the measurement set; the above-mentionedkThe number of transmission channels of the kth base station in the measurement set is obtained;
wherein L is less than or equal to M + N-1; wherein, the M is the number of frequency resources configured for the measurement set; the N is the number of time resources configured for the measurement set; and both M and N are integers not less than 1. In this embodiment, the measurement set is further configured with frequency resources, the number of the frequency resources is M, and in order to implement inter-base station channel measurement, when determining the measurement set, the constraint condition that L is M + N-1 needs to be satisfied. The step S120 may be understood as determining the maximum number S of base stations that the measurement set can include according to the number of time resources and the number of frequency resources configured by the measurement set; and then calculating the total number of the transmitting channels of all the base stations in the S measurement sets.
The specific implementation of step S130 can be divided into multiple cases, and in this embodiment, the analysis is performed one by one.
In the first case, the step S130 may include:
and if the L is less than or equal to N, determining that 1 transmitting base station is in a transmitting half-duplex state for transmitting the reference signal in each time resource, and determining that the base station which does not transmit the reference signal is in a receiving half-duplex state for receiving the reference signal. At this time, only one base station is in the transmitting half-duplex state in each time resource, and other base stations are in the receiving half-duplex state. And the reference signal transmitted by the base station in the transmitting half-duplex state. The reference signal here is typically a known reference signal of known transmit power and/or transmit content. Through the transmission and the reception of the reference signals, the measurement of the channels between the base stations can be simply and conveniently realized.
Further, if L is less than or equal to N, determining that 1 transmitting base station is in a transmitting half-duplex state for transmitting the reference signal and the base station not transmitting the reference signal is in a receiving half-duplex state for receiving the reference signal in each of the time resources, including:
determining an ith transmitting channel to transmit the reference signal in an ith time resource; wherein the base station to which the ith transmitting channel belongs is in the transmitting half-duplex state; the base station to which the ith transmitting channel does not belong is in the receiving half-duplex state; wherein i is a positive integer not greater than N.
In this embodiment, in order to implement detection between channels between base stations, in the ith time resource in this embodiment, the ith transmission channel is determined to transmit the reference signal. The ordering of the transmit channels may be based on various manners such as ordering according to spatial location, but once ordered, a transmit channel occupies only one ordering bit. In this way, at least one transmitting channel is transmitting the reference signal in each time slot, and other base stations are receiving the reference signal in the receiving half duplex state. Obviously, each base station sends the reference signal at least once, so that all channels between the base stations can be measured, and the accuracy of the measurement result is improved.
In the second case, the step S130 may include:
if the N is less than the L, selecting L +1-N transmitting channels to transmit the reference signal in the 1 st time resource, and determining that the base station which transmits the reference signal is in the full-duplex state and the base station which does not transmit the reference signal is in a receiving half-duplex state for receiving the reference signal.
In this embodiment, the number of the time resources is smaller than the number of the transmission channels of each base station in the measurement set. And in the 1 st time resource, selecting L +1-N transmitting channels to transmit the reference signal, and determining that the base station which transmits the reference signal is in the full-duplex state, and the base station which does not transmit the reference signal is in a receiving half-duplex state for receiving the reference signal. Here, the 1 st time resource is a time resource which is most front in time sequence in the N time resources. And selecting at least two transmission channels in the 1 st time resource to simultaneously transmit the reference signals. And the base station to which the transmission channel transmitting the reference signals belongs is in a full duplex state, namely, a state of transmitting and receiving signals; the remaining base stations are in a receive half-duplex state to receive the reference signal.
As a further improvement of this case, the step S130 further includes:
determining a jth transmitting channel to transmit the reference signal in a (j + 1) th time resource; wherein the base station to which the jth transmission channel belongs is in the transmission half-duplex state; the base station to which the jth transmission channel does not belong is in the receiving half-duplex state; the jth transmitting channel is a transmitting channel which does not send the reference signal in the 1 st time resource;
wherein j is not greater than a positive integer of N.
In the next N-1 time resources, only N-1 transmitting channels remain, in this embodiment, in each of the N-1 time resources, one transmitting channel is used to transmit the reference signal, and other base stations that do not transmit the reference signal are all in the receiving half-duplex tool. And in the j +1 th time resource, the reference signals are sent one by the rest N-1 transmitting channels, so that the measurement of the channels between any two base stations in the measurement set is realized.
Example two:
as shown in fig. 3, the present embodiment provides an inter-base station channel measuring apparatus, including:
a first determining unit 110, configured to determine the number of time resources configured by each base station in the measurement set;
a second determining unit 120, configured to determine the total number of transmission channels of all base stations in the measurement set;
a third determining unit 130, configured to determine, according to a relationship between the total number of transmission channels and the number of time resources, a working state of each base station in the measurement set during inter-base station channel measurement;
the working state is a full duplex state, a receiving half duplex state or a transmitting half duplex state.
The inter-base station channel measuring apparatus described in this embodiment may include various network elements arranged in a communication network. The specific structure of the first determining unit 110, the second determining unit 120, and the third determining unit 130 may correspond to a processor or a processing circuit. The processor may comprise a central processing unit, microprocessor, digital signal processor, or programmable array, or the like. The processing circuit may comprise an application specific integrated circuit. The processor or the processing circuit can realize the corresponding functions of the units by executing the preset instructions. The first determining unit 110, the second determining unit 120, and the third determining unit 130 may be integrated with the same processor or processing circuit, or may be respectively corresponding to different processors or processing circuits.
In this embodiment, the inter-base station channel measurement apparatus may set the operating state of each base station when performing inter-base station channel measurement according to the two parameters, where the number of time resources is related to the number of transmission channels of all base stations in the measurement set. The operation state of each base station is of course one of a full duplex state, a receive half duplex state and a transmit half duplex state.
This embodiment provides a simple apparatus capable of performing inter-base station channel measurement, which can be used to implement any one of the methods described in the first embodiment.
Further, the second determining unit 120 is configured to utilize a formula
Wherein L is the total number of the transmitting channels; k is the number of the base stations in the measurement set; the lk is the number of transmitting channels of the kth base station in the measurement set;
wherein L is less than or equal to M + N-1; wherein, the M is the number of frequency resources configured for the measurement set; the N is the number of time resources configured for the measurement set; and both M and N are integers not less than 1.
In this embodiment, the second determining unit 120 may include a calculator, a calculating circuit or a circuit having a calculating function, and the total number of transmitting channels is determined by the summation. Of course, in this embodiment, the total number of transmission channels of all base stations in the measurement set must satisfy the functional relationship L ≦ M + N-1, otherwise, the measurement result may not be accurate enough.
Further, the third determining unit 130 is specifically configured to determine, if L is less than or equal to N, that 1 transmitting base station is in a transmitting half-duplex state for transmitting the reference signal in each of the time resources, and the base station that does not send the reference signal is in a receiving half-duplex state for receiving the reference signal. Specifically, the third determining unit 130 is specifically configured to determine, in the ith time resource, that the ith transmitting channel transmits the reference signal; wherein the base station to which the ith transmitting channel belongs is in the transmitting half-duplex state; the base station to which the ith transmitting channel does not belong is in the receiving half-duplex state; wherein i is a positive integer not greater than N.
Of course, the third determining unit 130 in this embodiment can be used not only to control the channel measurement between base stations with L ≦ N, but also to measure the channel between base stations with N < L. Therefore, the third determining unit 130 is further specifically configured to select L +1-N transmission channels to transmit the reference signal in the 1 st time resource if N is less than L, and determine that the base station that transmits the reference signal is in the full-duplex state and the base station that does not transmit the reference signal is in the receiving half-duplex state for receiving the reference signal. Specifically, the third determining unit 130 is configured to determine, in the j +1 th time resource, that the jth transmission channel transmits the reference signal; wherein the base station to which the jth transmission channel belongs is in the transmission half-duplex state; the base station to which the jth transmission channel does not belong is in the receiving half-duplex state; the jth transmitting channel is a transmitting channel which does not send the reference signal in the 1 st time resource;
wherein j is not greater than a positive integer of N.
Several specific examples are provided below in combination with any of the technical solutions in the above embodiments:
example one:
the first step is as follows: a control unit is arranged in a communication network and is responsible for coordinating channel measurement between all duplex base stations and informing the working state of each base station. The control unit may be a component of the inter-base station channel measuring apparatus in the foregoing embodiments.
The second step is that: assume that a communication system is configured with N time resources, and M frequency resources are available on each time resource to measure a channel between base stations. And the control unit determines the number K of the base stations needing to carry out channel measurement between the base stations according to the number of the time resources and the number of the frequency resources. To ensure that the channel between the base stations can be completely measured, the number K of the selected base stations needs to meet the requirement
Wherein lk represents the number of transmitting channels of the kth base station, and L represents the total number of transmitting channels.
The third step: when L is less than or equal to N, that is, the number of transmission channels of the base station that needs to perform interference coordination is less than or equal to the number of available time resources, in the ith time resource, the control unit notifies the ith transmission channel to send a known reference signal, no signal is transmitted by other transmission channels, the base station to which the ith transmission channel belongs is in a transmitted half-duplex state, other base stations that do not transmit the reference signal are only in a received half-duplex state, and channel measurement between base stations is performed, where i is 1 … L.
The fourth step: and when the N is more than or equal to the L and less than or equal to the M + N-1, the number of the transmitting channels of the base station needing interference coordination is more than the number of the available time resources. At this time, in the 1 st time resource, the control unit informs the L +1-N transmitting channels to transmit the known reference signals, and each transmitting channel for transmitting the reference signals occupies different frequency resources. All the receiving channels of the base stations are in a receiving state, and channel measurement among the base stations is carried out. At this time, the base station where the L +1-N transmission channels that transmit the known reference signals are located is in a full-duplex working state, and the other base stations are in a received half-duplex state. In the remaining (N-1) time resources, the control unit informs (N-1) transmission channels which do not transmit the reference signals on the first time resource to sequentially transmit the reference signals, the base stations which transmit the reference signals are in a transmission half-duplex state, and in each time resource, the base stations which do not transmit the known reference signals are in a receiving half-duplex state to perform channel measurement between the base stations.
The fifth step: and each base station reports the measured channel information to the control unit.
Example two:
as shown in fig. 4, when the number M of frequency resources in the correlation bandwidth is 1 and the number N of time resources in the correlation time is 3, there are 3 single-antenna single-transmission-channel base stations belonging to the same measurement set that needs to perform inter-base-station interference channel measurement. The three base stations are BS1, BS2, and BS3, respectively. The total number of the transmitting channels of the base station with 3 single antennas and single transmitting channels is 3 and is not more than N. In this way, with the inter-base station channel measurement method described in this embodiment of the present application, each base station is in the transmitting state and other base stations are in the receiving state in turn at different time slots, as shown in fig. 4, where RB1 represents a frequency resource in the relevant bandwidth. BS1 transmits reference signals in slot 1, which BS2 and BS3 receive, respectively. BS3 transmits a reference signal in slot 2, which BS1 and BS3 receive, respectively. BS3 transmits a reference signal in slot 3, which BS2 and BS2 receive, respectively. In this embodiment, 1 time resource is 1 timeslot.
Example three:
when the number of frequency resources in the relevant bandwidth is M-3 and the number of time resources in the relevant time is N-1, the base station with 3 single antennas and single transmission channel is located in the measurement set where the inter-base station interference channel measurement is required. The three base stations are BS11, BS12, and BS11, respectively. The total number of the transmitting channels of the 3 base stations is larger than the N. In the time resource, all the base stations are in a full duplex state of transmitting and receiving simultaneously. In fig. 5, BS11 transmits reference signals using frequency resource RB11, and BS12 transmits reference signals using frequency resource RB 12; the BS13 transmits a reference signal using frequency resource RB 13.
Example four:
as shown in fig. 6, when the number of frequency resources in the relevant bandwidth is M-2 and the number of time resources in the relevant time is N-2, there are 3 single-antenna single-transmission-channel base stations located in the measurement set that needs to perform inter-base-station interference channel measurement. These base stations are base station 1, base station 2 and base station 3, respectively. In this example 1 slot corresponds to 1 time resource, and N is less than the total number of transmit channels.
In the time slot 1, the base station 1 and the base station 2 are in a full duplex state of transmitting and receiving simultaneously, and the base station 1 uses the frequency resource RB21 to send a reference signal; the base station 2 transmits a reference signal using the frequency resource RB 22. The base station 3 is in a receiving state; in slot 2, base station 3 is in the transmit state, base stations 1 and 2 are in the receive state, and the frequency resources used may be frequency RB1 or RB2 or RB1 and RB 2.
Example five:
as shown in fig. 7, when the number of frequency resources in the correlation bandwidth is M-4 and the number of time resources in the correlation time N-3, the two-antenna two-transmission-channel base station includes a measurement set that needs to perform inter-base-station interference channel measurement. These base stations are base station 11, base station 12, and base station 13, respectively. In this example 1 of said time resources is equal to 1 time slot.
As shown in fig. 7, in time slot 1, base station 11 and base station 12 are in a full duplex state for simultaneous transmission and reception, two transmission channels of base station 11 transmit known reference signals respectively using frequency resources RB5 and RB6, two transmission channels of base station 12 transmit known reference signals respectively using frequency resources RB3 and RB4, and base station 13 is in a receiving state. In slot 2, the first transmit channel of base station 13 may transmit a known reference signal using frequency resources RB5, RB6, RB3, and RB4, or any combination thereof, with base stations 11 and 12 in a receive state. In slot 3, the second transmit channel of base station 13 may transmit the known reference signal using frequency resources RB5, RB6, RB3, and RB4, or any combination thereof, with base stations 11 and 12 in a receive state.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, 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.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A method for inter-base station channel measurement, the method comprising:
determining the number of time resources configured for each base station in a measurement set;
determining the total number of transmitting channels of all base stations in a measurement set;
determining the working state of each base station in the measurement set during channel measurement between the base stations according to the relationship between the total number of the transmitting channels and the number of the time resources;
wherein, determining the working state of each base station in the measurement set during the channel measurement between the base stations according to the relationship between the total number of the transmission channels and the number of the time resources comprises:
if L is less than or equal to N, determining that 1 transmitting base station is in a transmitting half-duplex state for transmitting a reference signal in each time resource, and the base station not transmitting the reference signal is in a receiving half-duplex state for receiving the reference signal;
if the N is less than L, selecting L +1-N transmitting channels to transmit the reference signal in the 1 st time resource, and determining that the base station which transmits the reference signal is in the full-duplex state and the base station which does not transmit the reference signal is in a receiving half-duplex state for receiving the reference signal;
wherein, the L is the total number of the transmitting channels, and the N is the number of time resources configured for the measurement set;
the working state is a full duplex state, a receiving half duplex state or a transmitting half duplex state.
2. The method of claim 1,
the determining the total number of transmission channels of all base stations in the measurement set includes:
using formulas
Determining the total number of transmitting channels of all base stations in a measurement set; wherein L is the total number of the transmitting channels; k is the number of the base stations in the measurement set; the above-mentionedkThe number of transmission channels of the kth base station in the measurement set is obtained;
wherein L is less than or equal to M + N-1; wherein, the M is the number of frequency resources configured for the measurement set; the N is the number of time resources configured for the measurement set; and both M and N are integers not less than 1.
3. The method of claim 1,
if L is less than or equal to N, determining that 1 transmitting base station is in a transmitting half-duplex state for transmitting the reference signal in each time resource, and the base station not transmitting the reference signal is in a receiving half-duplex state for receiving the reference signal, including:
determining an ith transmitting channel to transmit the reference signal in an ith time resource; wherein the base station to which the ith transmitting channel belongs is in the transmitting half-duplex state; the base station to which the ith transmitting channel does not belong is in the receiving half-duplex state; wherein i is a positive integer not greater than N.
4. The method of claim 1,
the determining the working state of each base station in the measurement set during channel measurement between base stations according to the relationship between the total number of the transmission channels and the number of the time resources comprises:
determining a jth transmitting channel to transmit the reference signal in a (j + 1) th time resource; wherein the base station to which the jth transmission channel belongs is in the transmission half-duplex state; the base station to which the jth transmission channel does not belong is in the receiving half-duplex state; the jth transmitting channel is a transmitting channel which does not send the reference signal in the 1 st time resource;
wherein j is a positive integer not greater than N.
5. An inter-base station channel measurement apparatus, comprising:
a first determining unit, configured to determine the number of time resources configured by each base station in the measurement set;
a second determining unit, configured to determine the total number of transmission channels of all base stations in the measurement set;
a third determining unit, configured to determine, according to a relationship between the total number of the transmission channels and the number of the time resources, a working state of each base station in the measurement set during inter-base station channel measurement;
the third determining unit is specifically configured to determine, if L is less than or equal to N, that 1 transmitting base station is in a transmitting half-duplex state for transmitting a reference signal in each of the time resources, and the base station that does not transmit the reference signal is in a receiving half-duplex state for receiving the reference signal; or, specifically, if N is less than L, selecting L +1-N transmission channels to transmit the reference signal in the 1 st time resource, and determining that the base station that transmits the reference signal is in the full-duplex state and the base station that does not transmit the reference signal is in a half-duplex receiving state;
wherein, the L is the total number of the transmitting channels, and the N is the number of time resources configured for the measurement set;
the working state is a full duplex state, a receiving half duplex state or a transmitting half duplex state.
6. The apparatus of claim 5,
the second determination unit for using a formula
Determining the total number of transmitting channels of all base stations in a measurement set; wherein L is the total number of the transmitting channels; k is the number of the base stations in the measurement set; the above-mentionedkThe number of transmission channels of the kth base station in the measurement set is obtained;
wherein L is less than or equal to M + N-1; wherein, the M is the number of frequency resources configured for the measurement set; the N is the number of time resources configured for the measurement set; and both M and N are integers not less than 1.
7. The apparatus of claim 5,
the third determining unit is specifically configured to determine, within an ith time resource, that an ith transmitting channel transmits the reference signal; wherein the base station to which the ith transmitting channel belongs is in the transmitting half-duplex state; the base station to which the ith transmitting channel does not belong is in the receiving half-duplex state; wherein i is a positive integer not greater than N.
8. The apparatus of claim 5,
the third determining unit is configured to determine, within the j +1 th time resource, that the jth transmission channel transmits the reference signal; wherein the base station to which the jth transmission channel belongs is in the transmission half-duplex state; the base station to which the jth transmission channel does not belong is in the receiving half-duplex state; the jth transmitting channel is a transmitting channel which does not send the reference signal in the 1 st time resource;
wherein j is a positive integer not greater than N.
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