CN113395714A - Frequency hopping method and system, terminal and base station - Google Patents
Frequency hopping method and system, terminal and base station Download PDFInfo
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Abstract
The disclosure provides a frequency hopping method and system, a terminal and a base station, and relates to the field of communication. The terminal receives frequency hopping parameters sent by the base station, wherein the frequency hopping parameters comprise one or more bandwidth parts and resource block indication information used by the terminal in frequency hopping; when one bandwidth part exists, the resource block indication information comprises a starting resource block and a plurality of frequency offsets, and the terminal performs frequency hopping on the resource block corresponding to the resource block indication information of one bandwidth part and transmits uplink information; when there are multiple bandwidth parts, the resource block indication information includes the starting resource block or includes the starting resource block and at least one frequency offset, the terminal performs frequency hopping on the resource blocks corresponding to the resource block indication information of the multiple bandwidth parts, and transmits uplink information. The frequency domain diversity gain is improved by frequency hopping between different BWPs or by increasing the frequency position of the hopping within one bandwidth part.
Description
Technical Field
The present disclosure relates to the field of communications, and in particular, to a frequency hopping method and system, a terminal, and a base station.
Background
In a wireless communication system, the entire system bandwidth is divided into several bandwidth parts (BWP). Techniques for frequency hopping within a BWP are currently proposed. The inventor finds that when the system bandwidth is large (e.g. 100MHz) and a BWP bandwidth is small (e.g. 20MHz), frequency hopping in a BWP cannot sufficiently exploit the frequency domain diversity gain caused by the large bandwidth, and frequency hopping in a BWP only uses two frequency positions, and the frequency domain diversity gain is limited.
Disclosure of Invention
One technical problem to be solved by the embodiments of the present disclosure is: and the frequency domain diversity gain is improved.
Some embodiments of the present disclosure implement frequency hopping between different BWPs by performing frequency hopping on multiple bandwidth parts, thereby improving frequency domain diversity gain and further improving uplink coverage performance.
According to some embodiments of the present disclosure, frequency hopping is performed at more than three frequency positions of one bandwidth part by increasing frequency positions of frequency hopping, so as to improve frequency domain diversity gain, and further improve uplink coverage performance.
Some embodiments of the present disclosure provide a method of frequency hopping, including:
a terminal receives frequency hopping parameters sent by a base station, wherein the frequency hopping parameters comprise one or more bandwidth parts and resource block indication information used by the terminal in frequency hopping;
when the frequency hopping parameter comprises a bandwidth part, the resource block indication information comprises a starting resource block and a plurality of frequency offsets, and the terminal performs frequency hopping on the resource block corresponding to the resource block indication information of the bandwidth part according to the frequency hopping parameter and transmits uplink information;
and when the frequency hopping parameter comprises a plurality of bandwidth parts, the resource block indication information comprises a starting resource block or comprises the starting resource block and at least one frequency offset, and the terminal performs frequency hopping on the resource blocks corresponding to the resource block indication information of the plurality of bandwidth parts according to the frequency hopping parameter and transmits uplink information.
In some embodiments, when the frequency hopping parameter comprises a bandwidth portion, the terminal hops in a starting resource block of the bandwidth portion and resource blocks offset by a plurality of frequency offsets; when the frequency hopping parameter includes a plurality of bandwidth parts, the terminal performs frequency hopping in a starting resource block of the plurality of bandwidth parts, or performs frequency hopping in the starting resource block of the plurality of bandwidth parts and a resource block shifted by a frequency offset.
In some embodiments, the frequency hopping parameters further include a frequency hopping pattern; under the condition that the frequency hopping mode is frequency hopping in a time slot, a plurality of bandwidth parts of the frequency hopping of the terminal are in the same time slot; or, in the case that the frequency hopping mode is inter-slot frequency hopping, the plurality of bandwidth parts to which the terminal hops are in different slots.
In some embodiments, the frequency hopping parameter further includes frequency hopping handover delay information; in the frequency hopping process, after the terminal finishes one frequency hopping, the terminal delays for a period of time according to the frequency hopping switching time delay information and then carries out next frequency hopping.
In some embodiments, the frequency hopping handover delay information includes a location and a length of the frequency hopping handover delay.
In some embodiments, the frequency hopping handover delay information is determined or adopts a preset configuration according to a terminal capability.
In some embodiments, the frequency hopping switching delay information is transmitted through radio resource control signaling or physical downlink control channel signaling.
In some embodiments, the terminal receives downlink control information configuration information sent by the base station, where the downlink control information configuration information includes a correspondence between an index of a frequency offset and a resource block in a bandwidth portion corresponding to the frequency offset, and a correspondence between the index of the bandwidth portion and the bandwidth portion; the bandwidth part in the frequency hopping parameter is an index number of the bandwidth part, and the frequency offset in the frequency hopping parameter is an index number of the frequency offset.
Some embodiments of the present disclosure propose a method of frequency hopping, comprising:
a base station sends frequency hopping parameters to a terminal, wherein the frequency hopping parameters comprise one or more bandwidth parts and resource block indication information used by the terminal in frequency hopping;
when the frequency hopping parameter comprises a bandwidth part, the resource block indication information comprises a starting resource block and a plurality of frequency offsets, and the base station receives uplink information transmitted by a terminal in a frequency hopping manner on the resource block corresponding to the resource block indication information of the bandwidth part according to the frequency hopping parameter;
when the frequency hopping parameter comprises a plurality of bandwidth parts, the resource block indication information comprises a starting resource block or comprises the starting resource block and at least one frequency offset, and the base station receives uplink information transmitted by the terminal in a frequency hopping mode on the resource blocks corresponding to the resource block indication information of the bandwidth parts according to the frequency hopping parameter.
In some embodiments, when the frequency hopping parameter includes a bandwidth part, the base station receives uplink information of terminal frequency hopping transmission on a starting resource block of the bandwidth part and resource blocks shifted by a plurality of frequency offsets; and when the frequency hopping parameter comprises a plurality of bandwidth parts, the base station receives uplink information of frequency hopping transmission of the terminal on a starting resource block of the plurality of bandwidth parts, or receives the uplink information of frequency hopping transmission of the terminal on the starting resource block of the plurality of bandwidth parts and a resource block offset according to the frequency offset.
In some embodiments, the frequency hopping parameters further include a frequency hopping pattern; under the condition that the frequency hopping mode is frequency hopping in a time slot, the base station receives uplink information transmitted by frequency hopping of the terminal on a plurality of bandwidth parts in the same time slot; or, in the case that the frequency hopping mode is inter-slot frequency hopping, the base station receives uplink information transmitted by frequency hopping of the terminal on a plurality of bandwidth parts of different slots.
In some embodiments, the frequency hopping parameter further includes frequency hopping handover delay information; and the base station receives the uplink information transmitted by the terminal in one frequency hopping process of the terminal, delays for a period of time according to the frequency hopping switching time delay information, and then continues to receive the uplink information transmitted by the terminal in the next frequency hopping process.
In some embodiments, the base station sends downlink control information configuration information to the terminal, where the downlink control information configuration information includes an index of a frequency offset and a correspondence between resource blocks in a bandwidth part corresponding to the frequency offset, and a correspondence between the index of the bandwidth part and the bandwidth part; the bandwidth part in the frequency hopping parameter is an index number of the bandwidth part, and the frequency offset in the frequency hopping parameter is an index number of the frequency offset.
Some embodiments of the present disclosure provide a terminal, including:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of frequency hopping of any of the embodiments based on instructions stored in the memory.
Some embodiments of the present disclosure provide a base station, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of frequency hopping of any of the embodiments based on instructions stored in the memory.
Some embodiments of the present disclosure provide a system for frequency hopping, comprising: a terminal and a base station.
Some embodiments of the disclosure propose a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of frequency hopping as described in any of the embodiments.
Drawings
The drawings that will be used in the description of the embodiments or the related art will be briefly described below. The present disclosure will be more clearly understood from the following detailed description, which proceeds with reference to the accompanying drawings,
it is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without undue inventive faculty.
Fig. 1 is a flow chart of a method of frequency hopping according to some embodiments of the present disclosure.
Fig. 2 is a flowchart illustrating a frequency hopping method according to other embodiments of the present disclosure.
Fig. 3 is a flowchart illustrating a frequency hopping method according to other embodiments of the present disclosure.
Fig. 4 illustrates a schematic diagram of a terminal according to some embodiments of the present disclosure hopping in two bandwidth parts.
Fig. 5A illustrates a terminal of some embodiments of the present disclosure hopping in two bandwidth parts of the same time slot.
Fig. 5B is a diagram illustrating a terminal hopping in two bandwidth parts of different time slots according to some embodiments of the present disclosure.
Fig. 6A is a schematic diagram based on fig. 5A, further showing that there is a hop switching delay between two hops, and the position of the hop switching delay is set before BWP of the next hop.
Fig. 6B is a diagram further illustrating a hop handoff delay between two hops based on fig. 5A, and the position of the hop handoff delay is set after the BWP of the previous hop.
Fig. 7A is based on fig. 5B, and further shows a case that the time interval between two timeslots is greater than the frequency hopping handover delay, and the base station does not need to set the frequency hopping handover delay.
Fig. 7B further shows, on the basis of fig. 5B, a case that the time interval between two time slots is smaller than the frequency hopping handover delay, and the base station still needs to set the frequency hopping handover delay.
Fig. 8 is a schematic diagram of a system for frequency hopping according to some embodiments of the present disclosure.
Fig. 9 is a schematic diagram of a base station of some embodiments of the present disclosure.
Fig. 10 is a schematic diagram of a terminal of some embodiments of the present disclosure.
Fig. 11 is a flowchart illustrating a frequency hopping method according to other embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure.
Fig. 11 is a flowchart illustrating a frequency hopping method according to other embodiments of the present disclosure. As shown in fig. 11, the method of this embodiment includes: step 1110-.
In step 1110, the base station sends a frequency hopping parameter to the terminal, and the terminal receives the frequency hopping parameter sent by the base station, where the frequency hopping parameter includes one resource block indicator used by the terminal for frequency hopping, and the resource block indicator includes a starting resource block and a plurality (e.g., 2, 3, 4, or more) of frequency offsets.
The frequency offset in the frequency hopping parameter may be an index of the frequency offset. The corresponding frequency hopping position is indicated through the index number, so that the downlink control resource can be saved, and the downlink transmission time delay is reduced.
In step 1120, the terminal performs frequency hopping on a starting resource block of one bandwidth part and resource blocks shifted by a plurality of frequency offsets according to the frequency hopping parameter, and transmits uplink information.
In step 1130, the base station receives uplink information of the terminal frequency hopping transmission on a starting resource block of one bandwidth part and resource blocks shifted according to a plurality of frequency offsets according to the frequency hopping parameter.
In the above embodiment, frequency hopping is performed at three or more frequency positions of one bandwidth part by increasing frequency positions of frequency hopping, so that frequency domain diversity gain is improved, and uplink coverage performance is improved.
Fig. 1 is a flow chart of a method of frequency hopping according to some embodiments of the present disclosure. As shown in fig. 1, the method of this embodiment includes: step 110-.
In step 110, the base station sends a frequency hopping parameter to the terminal, and the terminal receives the frequency hopping parameter sent by the base station, where the frequency hopping parameter includes a plurality of bandwidth parts used by the terminal for frequency hopping and resource block indication information, and the resource block indication information includes a starting resource block, or the resource block indication information includes a starting resource block and at least one frequency offset.
Wherein the plurality of bandwidth parts may be, for example, 2, 3, 4 or more number of bandwidth parts.
In some embodiments, the frequency hopping parameter is transmitted through Downlink Control information, that is, the base station sends Downlink Control information, such as a Physical Downlink Control Channel (PDCCH), to the terminal, and the terminal receives the Downlink Control information sent by the base station, where the Downlink Control information includes index numbers of multiple bandwidth parts used by the terminal for frequency hopping, an initial resource block, and index numbers of frequency offsets (if any) included in the Downlink Control information. The related indication is carried out through the index number, so that the downlink control resources can be saved, and the downlink transmission time delay is reduced.
In order to implement the downlink control information indication mode of the index number, the base station may also send downlink control information configuration information to the terminal in advance, and the terminal receives the downlink control information configuration information sent by the base station, so that the terminal knows the corresponding relationship between the index number and the corresponding information indicated by the index number in advance. For example, the downlink control information configuration information includes a correspondence between an index number of a frequency offset and a Resource Block (RB) in a bandwidth part corresponding to the frequency offset, and a correspondence between an index number of a bandwidth part and the bandwidth part.
The amount of the downlink Control information configuration information is larger than that of the downlink Control information, and therefore, the transmission of the downlink Control information configuration information may adopt a higher layer signaling, such as a Radio Resource Control (RRC) signaling. For example, the downlink Control information configuration information is transmitted by using a pusch-config (Physical Uplink shared Channel configuration signaling) or a pucch-config (Physical Uplink Control Channel configuration signaling).
For the frequency hopping pattern in the timeslot, the index of the frequency offset in the downlink control information configuration information and the corresponding relationship between the resource blocks in the bandwidth part corresponding to the frequency offset may refer to the following formula:
where i denotes the index number of the frequency offset (or frequency position) of each hop, ranging from 0 to k, where i is 0, 1, and k, and denotes the first hop, the second hop, and the k +1 hop, respectively, and so on, and RBstartIndicating a starting resource block (starting RB for short), RB, within a BWPoffset 1Indicating the frequency offset, RB, between the first and second hopsoffset kIndicating the frequency offset between the k-th hop and the k + 1-th hop,
representing the number of RBs occupied by a BWP in the frequency domain, mod represents the modulo operation, RBstart(i) Indicating the resource blocks within the BWP corresponding to index i. For example,
RBstart＝2，RBoffset 1when i is set to 1 at maximum, RBstart(0)＝2，RBstart(1) 5. Assuming that there are two BWPs, BWP1 and BWP2, the terminal performs the first frequency hopping on the 2 nd RB of BWP1 and the second frequency hopping on the 5 th RB of BWP2 according to the scheme of this embodiment. As another example of the present invention,
RBstartassuming that there are two BWPs, BWP1 and BWP2, the terminal performs the first frequency hopping on the 2 nd RB of BWP1 and performs the second frequency hopping on the 2 nd RB of BWP2 according to the scheme of this embodiment.
For the inter-slot frequency hopping pattern, the index of the frequency offset in the downlink control information configuration information and the corresponding relationship between the resource blocks in the bandwidth part corresponding to the frequency offset may refer to the following formula:
wherein,
the whole indicates the number of the time slot,
indicating the number of time slots
Resource blocks, RBs, within corresponding BWPsstartIndicating a starting resource block (starting RB for short), RB, within a BWPoffset 1Indicating the frequency offset, RB, between the first and second hopsoffset kIndicating the frequency offset between the k-th hop and the k + 1-th hop,
denotes the number of RBs a BWP occupies in the frequency domain, mod denotes the modulo operation, n denotes the number of frequency offsets, and n +1 denotes the total number of frequency positions. n is a natural number.
The value range of (A) is 0 to k. For example,
RBstart＝2，RBoffset 1let n be 3, k be 1, let us assume that
And 1, then RBstart(0)＝2，RBstart(1) 5. Assuming two BWPs, BWP1 and BWP2, respectively, according to the scheme of this embodiment, the terminal performs the first frequency hopping on the 2 nd RB of BWP1 of slot 0 and the second frequency hopping on the 5 th RB of BWP2 of slot 1. As another example of the present invention,
RBstart2, there is no frequency offset between two hops, assuming
And 1, assuming that there are two BWPs, BWP1 and BWP2, respectively, according to the scheme of this embodiment, the terminal performs the first frequency hopping on the 2 nd RB of BWP1 of slot 0 and the second frequency hopping on the 2 nd RB of BWP2 of slot 1.
In step 120, the terminal performs frequency hopping on resource blocks corresponding to the resource block indication information of the plurality of bandwidth parts according to the frequency hopping parameter, and transmits uplink information.
Specifically, if the resource block indication information includes a starting resource block, the terminal performs frequency hopping on the starting resource blocks of the plurality of bandwidth parts and transmits uplink information; and if the resource block indication information comprises a starting resource block and at least one frequency offset, the terminal performs frequency hopping on the starting resource blocks of the plurality of bandwidth parts and the resource blocks shifted according to the frequency offset and transmits uplink information.
If the frequency hopping parameter sent by the base station does not indicate the frequency hopping mode, the terminal may hop according to a preset default frequency hopping mode (e.g., an intra-slot frequency hopping mode or an inter-slot frequency hopping mode).
Fig. 4 shows a schematic diagram of terminal frequency hopping in two bandwidth portions BWP1 and BWP2, where t represents time and f represents frequency.
In step 130, the base station receives uplink information transmitted by the terminal in frequency hopping on resource blocks corresponding to the resource block indication information of the plurality of bandwidth parts according to the frequency hopping parameter.
Specifically, if the resource block indication information includes a starting resource block, the base station receives uplink information of terminal frequency hopping transmission on the starting resource block of the plurality of bandwidth parts; and if the resource block indication information comprises a starting resource block and at least one frequency offset, the base station receives uplink information transmitted by the terminal in a frequency hopping manner on the starting resource blocks of the plurality of bandwidth parts and the resource blocks offset according to the frequency offset.
In the above embodiment, frequency hopping is performed on a plurality of bandwidth parts, so that frequency hopping between different BWPs is realized, frequency domain diversity gain is improved, and uplink coverage performance is further improved.
Fig. 2 is a flowchart illustrating a frequency hopping method according to other embodiments of the present disclosure. As shown in fig. 2, the method of this embodiment includes: step 210 — 230.
In step 210, the base station sends a frequency hopping parameter to the terminal, and the terminal receives the frequency hopping parameter sent by the base station, where the frequency hopping parameter includes a plurality of bandwidth parts used by the terminal for frequency hopping, resource block indication information (as described above, the resource block indication information includes a starting resource block, or the resource block indication information includes a starting resource block and at least one frequency offset), and a frequency hopping pattern.
The same parts and related contents of step 210 as step 110 may refer to the specific contents of step 110, and are not described herein again.
In step 220, the terminal performs frequency hopping among the plurality of bandwidth parts according to the frequency hopping parameter, and transmits uplink information. According to the difference of the frequency hopping mode, the following two situations are specifically included:
first (step 221): in the case that the frequency hopping pattern is intra-slot frequency hopping, a plurality of bandwidth parts to which the terminal hops are within the same slot.
Fig. 5A shows a diagram of terminal hopping in two bandwidth parts of the same slot (i.e., BWP1 and BWP2 of slot), where t denotes time and f denotes frequency.
Second (step 222): in the case where the frequency hopping pattern is inter-slot frequency hopping, the plurality of bandwidth parts to which the terminal hops are in different slots.
Fig. 5B shows a diagram of terminal hopping in two bandwidth parts of different slots (i.e., BWP1 of slot1 and BWP2 of slot 2), where t denotes time and f denotes frequency.
In step 230, the base station receives uplink information on a plurality of bandwidth parts according to the frequency hopping parameter. According to the difference of the frequency hopping mode, the following two situations are specifically included:
first (step 231): under the condition that the frequency hopping mode is frequency hopping in a time slot, the base station receives uplink information transmitted by the frequency hopping of the terminal on a plurality of bandwidth parts in the same time slot;
second (step 232): and under the condition that the frequency hopping mode is the inter-slot frequency hopping, the base station receives uplink information transmitted by the terminal in a frequency hopping mode on a plurality of bandwidth parts of different time slots.
The foregoing embodiment further implements two frequency hopping modes, i.e., intra-slot frequency hopping and inter-slot frequency hopping between different BWPs, on the basis of the beneficial effects of the embodiment shown in fig. 1, and the base station can set or change the frequency hopping mode according to the service requirement.
According to different terminal capabilities, the terminal may or may not need the frequency hopping switching time between two frequency hops. If the frequency hopping switching time is not required, the terminal may perform frequency hopping according to the method of the embodiment shown in fig. 1 and 2. If the frequency hopping switching time is required, the terminal can also perform frequency hopping according to the method of the embodiment shown in fig. 3.
Fig. 3 is a flowchart illustrating a frequency hopping method according to other embodiments of the present disclosure. As shown in fig. 3, the method of this embodiment includes: step 310, step 330.
In step 310, the base station sends a frequency hopping parameter to the terminal, and the terminal receives the frequency hopping parameter sent by the base station, where the frequency hopping parameter includes a plurality of bandwidth parts used by the terminal for frequency hopping, resource block indication information (as described above, the resource block indication information includes a starting resource block, or the resource block indication information includes a starting resource block and at least one frequency offset), and frequency hopping switching delay information, and according to a control requirement of the frequency hopping mode, the terminal may also selectively include the frequency hopping mode.
The frequency hopping switching time delay information refers to a time delay between two frequency hopping, and the terminal can perform related preparation work of frequency hopping switching within the time delay.
The frequency hopping handover delay information may be determined according to the terminal capability. The terminal reports the own capability information to the base station, and the base station determines the frequency hopping switching time delay information according to the capability information of the terminal. According to the terminal capability, if the terminal needs more time to perform the related preparation work of the frequency hopping switching, the time delay of the frequency hopping switching can be set longer, and conversely, if the terminal needs less time to perform the related preparation work of the frequency hopping switching, the time delay of the frequency hopping switching can be set shorter. The frequency hopping switching time delay information can also adopt default preset configuration of a system, and the preset configuration can be comprehensively determined according to statistical information of the capabilities of a plurality of terminals.
The frequency hopping switching delay information can be determined according to the terminal capability and in combination with the frequency hopping mode. And aiming at the frequency hopping mode in the time slot, if the terminal needs to carry out related preparation work of frequency hopping switching according to the terminal capability, the base station sets corresponding frequency hopping switching time delay. For the inter-slot frequency hopping mode, if the terminal needs to perform the related preparation work of frequency hopping switching and the time interval between two slots is greater than the frequency hopping switching time delay, the base station does not need to set the frequency hopping switching time delay, otherwise, the base station needs to set the frequency hopping switching time delay, and at this time, the sum of the frequency hopping switching time delay set by the base station and the time interval between two slots is greater than or equal to the time for the terminal to perform the preparation of frequency hopping switching.
The frequency hopping handover delay information includes a position and a length of the frequency hopping handover delay. The length of the frequency hopping switching delay represents the length of the frequency hopping switching delay. The position of the time delay for the hopping frequency switching may be set after the previous BWP, or before the next BWP, and may be set as needed.
The frequency hopping switching delay information is transmitted through a radio resource control signaling or a physical downlink control channel signaling, that is, the base station configures and transmits the position and the length of the frequency hopping switching delay through the radio resource control signaling or the physical downlink control channel signaling.
In step 320, the terminal performs frequency hopping among the multiple bandwidth parts according to the frequency hopping parameters and transmits uplink information, which may specifically refer to step 120 or 220, in the frequency hopping process, after completing one frequency hopping, the terminal performs next frequency hopping after delaying for a period of time according to the frequency hopping switching delay information, and the terminal performs related preparation work of frequency hopping switching within the delayed period of time.
Fig. 6A shows a diagram that a terminal hops in two bandwidth portions of the same slot (i.e., BWP1 and BWP2 of slot), and there is a hopping switching delay between two hops, where the hopping switching delay (shown by black box, and other figures are also and will not be described repeatedly) is located before BWP2 of the second hop, t represents time, and f represents frequency.
Fig. 6B shows a diagram that a terminal hops in two bandwidth portions of the same slot (i.e., BWP1 and BWP2 of slot) with a hopping switching delay between the two hops, where the hopping switching delay is located after BWP1 of the first hop, t denotes time and f denotes frequency.
Fig. 7A shows a schematic diagram of a terminal performing frequency hopping in two bandwidth portions of different slots (i.e., BWP1 of slot1 and BWP2 of slot 2), and since a time interval between two slots is greater than a frequency hopping switching delay, a base station does not need to set the frequency hopping switching delay, where t represents time and f represents frequency.
Fig. 7B shows a diagram of a terminal hopping frequency in two bandwidth parts of different slots (i.e., BWP1 of slot1 and BWP2 of slot 2), and since the time interval between two slots is smaller than the hopping switching delay, the base station sets the hopping switching delay, t represents time and f represents frequency.
In step 330, the base station receives the uplink information on the plurality of bandwidth parts according to the frequency hopping parameter, which may specifically refer to step 130 or 230, and in the terminal frequency hopping process, after receiving the uplink information transmitted by the terminal in one frequency hopping, the base station delays for a period of time according to the frequency hopping switching delay information, and then continues to receive the uplink information transmitted by the terminal in the next frequency hopping, so as to implement synchronization of transmission and reception of the frequency hopping information between the terminal and the base station.
The above-mentioned embodiment, on the basis of the beneficial effects of the embodiments shown in fig. 1 and fig. 2, sets the hopping switching delay between two hopping frequencies according to the terminal capability, so that the terminal has sufficient time to perform the relevant preparation work of hopping switching.
Fig. 8 is a schematic diagram of a system for frequency hopping according to some embodiments of the present disclosure. As shown in fig. 8, the frequency hopping system of this embodiment includes: a base station 810 and one or more terminals 820.
The base station 810 transmits frequency hopping parameters to the terminal 820, and the terminal 820 receives the frequency hopping parameters transmitted by the base station 810, wherein the frequency hopping parameters comprise one or more bandwidth parts and resource block indication information used by the terminal 820 for frequency hopping. When the frequency hopping parameter includes a bandwidth portion, the resource block indication information includes a starting resource block and a plurality of frequency offsets, the terminal 820 performs frequency hopping on the starting resource block of the bandwidth portion and the resource blocks shifted according to the plurality of frequency offsets according to the frequency hopping parameter and transmits uplink information, and the base station 810 receives the uplink information transmitted by the frequency hopping of the terminal 820 on the starting resource block of the bandwidth portion and the resource blocks shifted according to the plurality of frequency offsets. When the frequency hopping parameter includes a plurality of bandwidth parts, the resource block indication information includes a starting resource block or includes a starting resource block and at least one frequency offset, the terminal 820 performs frequency hopping on the starting resource block of the plurality of bandwidth parts according to the frequency hopping parameter, or performs frequency hopping on the starting resource block of the plurality of bandwidth parts and a resource block shifted according to the frequency offset and transmits uplink information, the base station 810 receives the uplink information transmitted by the terminal 820 by frequency hopping on the starting resource block of the plurality of bandwidth parts, or receives the uplink information transmitted by the terminal 820 by frequency hopping on the starting resource block of the plurality of bandwidth parts and a resource block shifted according to the frequency offset
In some embodiments, the frequency hopping parameters further include a frequency hopping pattern; under the condition that the frequency hopping mode is frequency hopping in a time slot, a plurality of bandwidth parts of the frequency hopping of the terminal 820 are in the same time slot, and the base station 810 receives uplink information transmitted by the frequency hopping of the terminal 820 on the plurality of bandwidth parts in the same time slot; alternatively, in the case that the frequency hopping mode is inter-slot frequency hopping, the plurality of bandwidth parts to which the terminal 820 hops are in different time slots, and the base station 810 receives uplink information transmitted by the terminal 820 in frequency hopping over the plurality of bandwidth parts in different time slots.
In some embodiments, the frequency hopping parameter further comprises frequency hopping handover delay information; in the frequency hopping process, after finishing one of the frequency hopping, the terminal 820 delays for a period of time according to the frequency hopping switching delay information and then performs the next frequency hopping; in the frequency hopping process of the terminal 820, after receiving the uplink information of one-time frequency hopping transmission of the terminal 820, the base station 810 delays for a period of time according to the frequency hopping switching delay information, and then continues to receive the uplink information of the next frequency hopping transmission of the terminal 820.
Some embodiments of the present disclosure implement frequency hopping between different BWPs by performing frequency hopping on multiple bandwidth parts, thereby improving frequency domain diversity gain and further improving uplink coverage performance.
According to some embodiments of the present disclosure, frequency hopping is performed at more than three frequency positions of one bandwidth part by increasing frequency positions of frequency hopping, so as to improve frequency domain diversity gain, and further improve uplink coverage performance.
Fig. 9 is a schematic diagram of a base station of some embodiments of the present disclosure. As shown in fig. 9, the base station 810 of this embodiment includes: a memory 811 and a processor 812 coupled to the memory 811, the processor 812 being configured to perform relevant steps performed by the base station in the frequency hopping method of any of the foregoing embodiments based on instructions stored in the memory 811.
The memory 811 may include, for example, a system memory, a fixed nonvolatile storage medium, and the like. The system memory stores, for example, an operating system, an application program, a Boot Loader (Boot Loader), and other programs.
Fig. 10 is a schematic diagram of a terminal of some embodiments of the present disclosure. As shown in fig. 10, the terminal 820 of this embodiment includes: a memory 821 and a processor 822 coupled to the memory 821, wherein the processor 822 is configured to execute relevant steps executed by the terminal in the frequency hopping method of any of the foregoing embodiments based on instructions stored in the memory 821.
The memory 821 may include, for example, a system memory, a fixed nonvolatile storage medium, and the like. The system memory stores, for example, an operating system, an application program, a Boot Loader (Boot Loader), and other programs.
The terminal 820 may further include an input-output interface 823, a network interface 824, a storage interface 825, and the like. These interfaces 823, 824, 825 and the memory 821 and the processor 822 may be connected via a bus 826, for example. The input/output interface 823 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. Network interface 824 provides a connection interface for various networking devices. The storage interface 825 provides a connection interface for external storage devices such as an SD card and a usb disk.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more non-transitory computer-readable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (18)
1. A method of frequency hopping, comprising:
a terminal receives frequency hopping parameters sent by a base station, wherein the frequency hopping parameters comprise one or more bandwidth parts and resource block indication information used by the terminal in frequency hopping;
when the frequency hopping parameter comprises a bandwidth part, the resource block indication information comprises a starting resource block and a plurality of frequency offsets, and the terminal performs frequency hopping on the resource block corresponding to the resource block indication information of the bandwidth part according to the frequency hopping parameter and transmits uplink information;
and when the frequency hopping parameter comprises a plurality of bandwidth parts, the resource block indication information comprises a starting resource block or comprises the starting resource block and at least one frequency offset, and the terminal performs frequency hopping on the resource blocks corresponding to the resource block indication information of the plurality of bandwidth parts according to the frequency hopping parameter and transmits uplink information.
2. The method of claim 1,
when the frequency hopping parameter comprises a bandwidth part, the terminal carries out frequency hopping on a starting resource block of the bandwidth part and resource blocks which are shifted according to a plurality of frequency offsets;
when the frequency hopping parameter includes a plurality of bandwidth parts, the terminal performs frequency hopping in a starting resource block of the plurality of bandwidth parts, or performs frequency hopping in the starting resource block of the plurality of bandwidth parts and a resource block shifted by a frequency offset.
3. The method of claim 1, wherein the frequency hopping parameters further comprise a frequency hopping pattern;
under the condition that the frequency hopping mode is frequency hopping in a time slot, a plurality of bandwidth parts of the frequency hopping of the terminal are in the same time slot;
or, in the case that the frequency hopping mode is inter-slot frequency hopping, the plurality of bandwidth parts to which the terminal hops are in different slots.
4. The method according to any of claims 1-3, wherein the frequency hopping parameters further include frequency hopping handover delay information;
in the frequency hopping process, after the terminal finishes one frequency hopping, the terminal delays for a period of time according to the frequency hopping switching time delay information and then carries out next frequency hopping.
5. The method of claim 4, wherein the frequency hopping handover delay information comprises a location and a length of a frequency hopping handover delay.
6. The method of claim 4, wherein the frequency hopping handover delay information is determined according to a terminal capability or adopts a preset configuration.
7. The method of claim 4, wherein the frequency hopping handover delay information is transmitted through radio resource control signaling or physical downlink control channel signaling.
8. The method of claim 7, further comprising:
the terminal receives downlink control information configuration information sent by a base station, wherein the downlink control information configuration information comprises the index number of a frequency offset and the corresponding relation between resource blocks in a bandwidth part corresponding to the frequency offset, and the index number of the bandwidth part and the corresponding relation between the bandwidth parts;
the bandwidth part in the frequency hopping parameter is an index number of the bandwidth part, and the frequency offset in the frequency hopping parameter is an index number of the frequency offset.
9. A method of frequency hopping, comprising:
a base station sends frequency hopping parameters to a terminal, wherein the frequency hopping parameters comprise one or more bandwidth parts and resource block indication information used by the terminal in frequency hopping;
when the frequency hopping parameter comprises a bandwidth part, the resource block indication information comprises a starting resource block and a plurality of frequency offsets, and the base station receives uplink information transmitted by a terminal in a frequency hopping manner on the resource block corresponding to the resource block indication information of the bandwidth part according to the frequency hopping parameter;
when the frequency hopping parameter comprises a plurality of bandwidth parts, the resource block indication information comprises a starting resource block or comprises the starting resource block and at least one frequency offset, and the base station receives uplink information transmitted by the terminal in a frequency hopping mode on the resource blocks corresponding to the resource block indication information of the bandwidth parts according to the frequency hopping parameter.
10. The method of claim 9,
when the frequency hopping parameter comprises a bandwidth part, the base station receives uplink information transmitted by frequency hopping of the terminal on a starting resource block of the bandwidth part and resource blocks shifted according to a plurality of frequency offsets;
and when the frequency hopping parameter comprises a plurality of bandwidth parts, the base station receives uplink information of frequency hopping transmission of the terminal on a starting resource block of the plurality of bandwidth parts, or receives the uplink information of frequency hopping transmission of the terminal on the starting resource block of the plurality of bandwidth parts and a resource block offset according to the frequency offset.
11. The method of claim 9, wherein the frequency hopping parameters further include a frequency hopping pattern;
under the condition that the frequency hopping mode is frequency hopping in a time slot, the base station receives uplink information transmitted by frequency hopping of the terminal on a plurality of bandwidth parts in the same time slot;
or, in the case that the frequency hopping mode is inter-slot frequency hopping, the base station receives uplink information transmitted by frequency hopping of the terminal on a plurality of bandwidth parts of different slots.
12. The method according to any of claims 9-11, wherein the hopping parameters further include hopping handover delay information;
and the base station receives the uplink information transmitted by the terminal in one frequency hopping process of the terminal, delays for a period of time according to the frequency hopping switching time delay information, and then continues to receive the uplink information transmitted by the terminal in the next frequency hopping process.
13. The method of claim 12, wherein the hop-switching delay information comprises a position and a length of a hop-switching delay;
or, the frequency hopping switching time delay information is determined or adopts a preset configuration according to the terminal capability;
or, the frequency hopping switching delay information is transmitted through a radio resource control signaling or a physical downlink control channel signaling.
14. The method of claim 9, further comprising:
the base station sends downlink control information configuration information to the terminal, wherein the downlink control information configuration information comprises the index number of the frequency offset and the corresponding relation between resource blocks in the bandwidth part corresponding to the frequency offset, and the index number of the bandwidth part and the corresponding relation between the bandwidth parts;
the bandwidth part in the frequency hopping parameter is an index number of the bandwidth part, and the frequency offset in the frequency hopping parameter is an index number of the frequency offset.
15. A terminal, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of frequency hopping of any of claims 1-8 based on instructions stored in the memory.
16. A base station, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of frequency hopping of any of claims 9-14 based on instructions stored in the memory.
17. A system for frequency hopping, comprising: the terminal of claim 15 and the base station of claim 16.
18. A non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of frequency hopping of any one of claims 1-14.
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