WO2018028675A1 - Procédé, appareil, dispositif, système et support de stockage de configuration de signal d'accès aléatoire - Google Patents

Procédé, appareil, dispositif, système et support de stockage de configuration de signal d'accès aléatoire Download PDF

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Publication number
WO2018028675A1
WO2018028675A1 PCT/CN2017/097099 CN2017097099W WO2018028675A1 WO 2018028675 A1 WO2018028675 A1 WO 2018028675A1 CN 2017097099 W CN2017097099 W CN 2017097099W WO 2018028675 A1 WO2018028675 A1 WO 2018028675A1
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WIPO (PCT)
Prior art keywords
random access
access signal
time domain
downlink control
length
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PCT/CN2017/097099
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English (en)
Chinese (zh)
Inventor
侯雪颖
刘光毅
徐晓东
胡丽洁
沈晓冬
Original Assignee
中国移动通信有限公司研究院
中国移动通信集团公司
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Publication of WO2018028675A1 publication Critical patent/WO2018028675A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/002—Transmission of channel access control information
    • H04W74/008—Transmission of channel access control information with additional processing of random access related information at receiving side
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure

Definitions

  • the present invention relates to the field of wireless communications technologies, and in particular, to a random access signal configuration method, apparatus, device, system, and storage medium.
  • TDD Time Division Duplexing
  • 5G Fifth Generation Mobile Communication
  • the downlink transmission of the base station far away from a target base station exceeds the guard interval (GP) due to the propagation delay, and the downlink of the remote base station It still causes strong interference to the uplink of the target base station.
  • GP guard interval
  • the existing TD-LTE (Time Division Long Term Evolution) system even if all the cells in the network adopt the same TDD time slot ratio, for the macro station, even if the location is relatively high, even if they are separated Hundreds of kilometers, due to propagation delay, there may still be downlink interference to the uplink transmission, as shown in Figure 1.
  • the location of the uplink random access signal is fixed in some uplink subframes through RRC configuration signaling, and the transmission transmission time length is fixed, then When the interference occurs, the information sent by the uplink cannot be correctly detected by the base station, and the base station cannot correctly detect the uplink access signal, resulting in uplink access failure or increased access delay.
  • the embodiments of the present invention provide a method, a device, a device, a system, and a storage medium for configuring a random access signal, which are used to improve the flexibility of the random access signal configuration, the access success rate, and the access delay.
  • An embodiment of the present invention provides a method for configuring a random access signal applied to a network side, including:
  • the system message or high layer signaling is used to notify the UE of multiple types of random access signal transmission modes configured for the UE.
  • the method further includes:
  • the method further includes:
  • the downlink control information is sent to the UE, where the downlink control information carries indication information that is used to indicate that the UE transmits a random access signal transmission mode, which is selected from a pre-configured multi-type random access signal transmission manner.
  • At least one configuration information of each type of random access signal transmission manner is different, and the configuration information includes at least one of: a transmission period of the random access signal, and a time domain location of the random access signal. And frequency domain location and random access sequence.
  • the time domain location of the random access signal includes a time domain length of the random access signal, where a time domain length of the random access signal is different in each type of random access signal transmission mode.
  • the time domain length includes a standard time domain length, and at least one of the following time domain lengths: a shortened length time domain length and an increased length time domain length.
  • random access signals having different time domain lengths are determined according to the following method:
  • random access signals having different time domain lengths are determined according to the following method:
  • Determining the time domain length occupied by the random access signal of the increased length of the time domain is the sum of the third time domain length and the fourth time domain length.
  • the method before sending the downlink control information to the UE, the method further includes:
  • the configuration information of the downlink control information detection window includes at least one of the following: a detection period of the downlink control information, time domain offset information within the detection period, and detection window length information.
  • the downlink control information further includes at least one of the following indication information: indication information indicating a time domain length occupied by the random access signal; and indicating the pre-configured The indication information of whether the time domain transmission location changes; the indication information used to indicate whether the UE can select a random access signal transmission mode according to the channel quality measured by the UE.
  • the downlink control information if the downlink control information carries indication information for indicating a pre-configured time domain transmission location change, the downlink control information further carries an indication for indicating the changed time domain transmission location. information.
  • the changed time domain transmission location includes a portion of the time domain resources and/or new time domain resources available in the pre-configured time domain transmission location.
  • the indication information used to indicate the changed time domain transmission location is location offset information of the changed time domain transmission resource relative to the pre-configured time domain transmission resource or the indication is used to indicate a change
  • the indication information of the subsequent time domain transmission location is the subframe identifier in the radio frame occupied by the changed time domain transmission resource.
  • the embodiment of the present invention further provides a method for configuring a random access signal applied to a UE side, including:
  • the receiving network transmits multiple types of random access signals by using system messages or high-level signaling.
  • the method further includes:
  • the method further includes:
  • the network side And receiving, by the network side, the downlink control information, where the downlink control information carries the indication information that is used by the network side to indicate a transmission mode of the random access signal.
  • the method before receiving the downlink control information, the method further includes:
  • the configuration information of the transmission mode includes at least one of the following: a transmission period of the random access signal, a time domain location of the random access signal, a frequency domain location, and a random access sequence.
  • the method before receiving the downlink control information, the method further includes:
  • the method further includes:
  • the downlink control information is obtained according to the configuration information of the downlink control information detection window sent by the network side.
  • the configuration information of the downlink control information detection window includes at least one of the following: a detection period of the downlink control information, time domain offset information within the detection period, and detection window length information.
  • the downlink control information further carries time domain location information of periodic random access signal transmission
  • the method further includes:
  • the downlink control information further includes at least one of the following indication information: indication information indicating a time domain length occupied by the random access signal; and indicating whether the pre-configured time domain transmission location is changed.
  • the indication information is used to indicate whether the UE can select indication information of a random access signal transmission manner according to the channel quality measured by the UE.
  • the downlink control information if the downlink control information carries indication information for indicating a pre-configured time domain transmission location change, the downlink control information further carries an indication for indicating the changed time domain transmission location. information.
  • the changed time domain transmission location includes a part of the time domain resource and/or a new time domain resource available in the pre-configured time domain transmission location; and if the determination is based on the downlink control information, Channel quality selects the random access signal transmission method;
  • the partial time domain resource corresponding location and/or the newly added time domain resource corresponding location available in the pre-configured time domain transmission location are sent to the network side to be randomly connected. Into the signal.
  • the method further includes:
  • the random access signal is sent according to the default random access signal transmission manner configured on the network side.
  • An embodiment of the present invention further provides a random access signal configuration apparatus applied to a network side, including:
  • a configuration unit configured to configure multiple types of random access signal transmission modes for the UE
  • the first notification unit is configured to notify the UE of the multi-type random access signal transmission manner configured by the UE by using a system message or a high layer signaling.
  • the configuration unit is further configured to select a type of random access signal transmission mode from a plurality of types of random access signal transmission modes configured for the UE as a default random access signal transmission mode;
  • the first notification unit is further configured to notify the UE of the default random access signal transmission mode configured by the UE by using a system message or a high layer signaling.
  • the apparatus further includes:
  • a sending unit configured to send, to the UE, downlink control information, where the downlink control information is selected from a plurality of types of random access signal transmission modes configured for the UE, and is used to indicate that the UE transmits a random connection. Indication of the signal transmission mode.
  • At least one configuration information of each type of random access signal transmission manner is different, and the configuration information includes at least one of: a transmission period of the random access signal, and a time domain location of the random access signal. And frequency domain location and random access sequence.
  • the time domain length of the random access signal in each type of random access signal transmission mode, is different, the time domain length includes a standard time domain length, and at least one of the following time domain lengths: when the length is shortened The length of the field and the length of the time domain of the added length.
  • the apparatus further includes:
  • a first determining unit configured to determine a first ratio of a frequency domain resource interval occupied by the random access signal of the standard time domain length and a frequency domain resource interval occupied by the random access signal of the time domain length of the shortened/increase length;
  • a second determining unit configured to determine, according to a first time domain length occupied by the random access signal of the standard time domain length and the first ratio, to determine a second time domain occupied by the random access signal of the time domain length of the shortened/increase length length.
  • the apparatus further includes:
  • a third determining unit configured to determine a second ratio of a frequency domain resource interval occupied by the random access signal of the standard time domain length and a frequency domain resource interval occupied by the random access signal of the shortened length time domain length;
  • a fourth determining unit configured to determine, according to a third time domain length occupied by the random access signal of the standard time domain length and the second ratio, a fourth time domain length occupied by the random access signal of the shortened length time domain length;
  • a fifth determining unit configured to determine that the time domain length occupied by the random access signal of the increased length of the time domain is the sum of the third time domain length and the fourth time domain length.
  • the apparatus further includes:
  • a sixth determining unit configured to determine configuration information of the downlink control information detection window before the sending unit sends the downlink control information to the UE;
  • the second notification unit is configured to notify the configuration information of the downlink control information detection window determined by the UE by using a system message or a high layer signaling.
  • the configuration information of the downlink control information detection window includes at least one of the following: a detection period of the downlink control information, time domain offset information within the detection period, and detection window length information.
  • the downlink control information further includes at least one of the following indication information: indication information indicating a time domain length occupied by the random access signal; and indicating whether the pre-configured time domain transmission location is changed.
  • the indication information is used to indicate whether the UE can select indication information of a random access signal transmission manner according to the channel quality measured by the UE.
  • the downlink control information if the downlink control information carries indication information for indicating a pre-configured time domain transmission location change, the downlink control information further carries an indication for indicating the changed time domain transmission location. information.
  • the changed time domain transmission location includes a portion of the time domain resources and/or new time domain resources available in the pre-configured time domain transmission location.
  • the indication information used to indicate the changed time domain transmission location is location offset information of the changed time domain transmission resource relative to the pre-configured time domain transmission resource or the indication is used to indicate a change
  • the indication information of the subsequent time domain transmission location is the subframe identifier in the radio frame occupied by the changed time domain transmission resource.
  • the embodiment of the present invention further provides a base station, which includes a random access signal configuration apparatus applied to a network side in the embodiment of the present invention.
  • the embodiment of the present invention further provides a device for configuring a random access signal that should be configured as a UE side, including:
  • the first receiving unit is configured to receive a plurality of types of random access signal transmission manners that are notified by the network side by using system messages or high layer signaling.
  • the apparatus further includes:
  • the second receiving unit is configured to receive a default random access signal transmission manner, where the network access side system message or the high layer signaling is notified, where the default random access signal transmission mode is a plurality of types of random configurations configured from the network side. Selected in the access signal transmission mode.
  • the apparatus further includes:
  • the third receiving unit is configured to receive the downlink control information that is sent by the network side, where the downlink control information is selected by the network side to be selected from the configured multiple types of random access signal transmission manners, and is used to indicate the transmission random access. Indicates the signal transmission method.
  • the device for configuring a random access signal implemented by the UE side further includes:
  • the fourth receiving unit is configured to receive configuration information of the downlink control information detection window that is notified by the network side by using the system message or the high layer signaling before the third receiving unit receives the downlink control information;
  • the detecting unit is configured to detect, after the third receiving unit receives the downlink control information sent by the network side, the downlink control information according to the configuration information of the downlink control information detection window sent by the network side.
  • the configuration information of the downlink control information detection window includes at least one of the following: a detection period of the downlink control information, time domain offset information within the detection period, and detection window length information.
  • the downlink control information further carries time domain location information of periodic random access signal transmission
  • the device also includes:
  • a determining unit configured to determine, according to the indication information used to indicate a transmission mode of the transmission random access signal, a transmission mode of transmitting the random access signal
  • the first sending unit is configured to send, to the network side, a random time in a time domain location of the random signal transmission carried in the downlink control indication information according to the determined random access signal transmission mode Access signal.
  • the downlink control information further includes at least one of the following indication information: indication information indicating a time domain length occupied by the random access signal; and indicating whether the pre-configured time domain transmission location is changed.
  • the indication information is used to indicate whether the UE can select indication information of a random access signal transmission manner according to the channel quality measured by the UE.
  • the changed time domain transmission location includes a part of the time domain resource and/or a new time domain resource available in the pre-configured time domain transmission location; and if the determination is based on the downlink control information, Channel quality selects the random access signal transmission method;
  • the first sending unit is configured to, according to the measured channel quality and the determined random access signal transmission manner, a partial time domain resource corresponding location and/or a newly added time domain resource available in the pre-configured time domain transmission location.
  • a random access signal is sent to the network side at the corresponding location.
  • the apparatus further includes:
  • the second sending unit is configured to: if the downlink control information is not detected, send the random access signal according to the default random access signal transmission manner configured by the network side.
  • the embodiment of the present invention further provides a user equipment, which includes a random access signal configuration apparatus applied to the UE side in the embodiment of the present invention.
  • the embodiment of the present invention further provides a random access signal configuration system, including the base station and user equipment according to the embodiment of the present invention.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores a computer program, and the computer program is used to execute a random access signal configuration method applied to the network side according to the embodiment of the invention.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores a computer program, and the computer program is used to execute a random access signal configuration method applied to the user equipment according to the embodiment of the invention.
  • An embodiment of the present invention further provides a base station, including: a first transceiver, a first memory, and a first processor; storing, on the first memory, a computer program executable on the first processor, the first transceiver being capable of data transmission when the first processor runs a computer program; The steps of the method for configuring a random access signal applied to a base station according to the embodiment of the present invention are implemented when the processor executes the program.
  • An embodiment of the present invention further provides a user equipment, including: a second transceiver, a second memory, and a second processor; and the second memory stores a computer program executable on the second processor,
  • the second transceiver is capable of performing data transmission when the second processor runs a computer program; and when the processor executes the program, the random access signal configuration method applied to the user equipment according to the embodiment of the present invention is implemented.
  • the network side pre-configures multiple types of random access signal transmission modes for the user, so that the base station can select which UE to use according to the real-time interference situation.
  • a type of transmission mode transmits a random access signal, thereby improving flexibility of random access signal configuration, random access signal and access success rate, and reducing access delay.
  • FIG. 1 is a schematic diagram of uplink and downlink interference in a TD-LTE system in the prior art
  • 2a is a schematic diagram of a random access signal with a standard time domain length and a shortened length time domain length configured on the network side according to an embodiment of the present invention
  • FIG. 2b is a schematic diagram of a random access signal with a standard time domain length and an increased length time domain length configured on the network side according to an embodiment of the present invention
  • 3a is a schematic flowchart of determining a random access signal with different time domain lengths according to a first manner according to an embodiment of the present disclosure
  • FIG. 3b is a schematic flowchart of determining a random access signal with different time domain lengths according to a second manner according to an embodiment of the present disclosure
  • FIG. 4 is a schematic flowchart of an implementation process of a first random access signal configuration method implemented by a network side according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a configuration of a random access signal according to an embodiment of the present invention.
  • FIG. 6 is a schematic flowchart of an implementation process of a first random access signal configuration method performed by a UE side according to an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart of a random access signal sent by a UE to a network side after receiving downlink control information sent by a network side according to an embodiment of the present disclosure
  • FIG. 8 is a schematic structural diagram of a device for configuring a random access signal implemented by a network side according to an embodiment of the present disclosure
  • FIG. 9 is a schematic structural diagram of a device for configuring a random access signal implemented on a UE side according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic flowchart of implementing a second method for configuring a random access signal implemented by a network side according to an embodiment of the present invention
  • FIG. 11 is a schematic flowchart of an implementation process of a second random access signal configuration method implemented by a UE side according to an embodiment of the present disclosure
  • FIG. 12 is a schematic structural diagram of a second random access signal configuration apparatus implemented by a network side according to an embodiment of the present disclosure
  • FIG. 13 is a schematic structural diagram of a second random access signal configuration apparatus implemented by a UE side according to an embodiment of the present disclosure
  • FIG. 14 is a schematic structural diagram of a random access signal configuration system according to an embodiment of the present invention.
  • the embodiment of the present invention provides a random access signal configuration method, apparatus, device, system, and storage medium.
  • the network side configures a plurality of types of random access signal transmission modes for the UE in advance, and notifies the UE to configure multiple types of random connections for the UE by using a system message in a broadcast form or high layer signaling.
  • the dynamic downlink control information of the physical layer indicates that the UE uses a type of random access signal transmission mode in a pre-configured multi-type transmission mode for transmission, because the base station can be according to the wireless system.
  • the real-time interference situation flexible adjustment of the transmission mode of the random access signal, improves the success rate of random access signal access, avoids the UE attempting to access multiple times, and reduces the access delay.
  • the base station may configure a N (N is a positive integer greater than or equal to 1) type of random access signal transmission mode for the UE by using a system message in broadcast form or higher layer signaling, and configure periodic random access.
  • Time domain location information for signal transmission the network side determines configuration information of each type of random access signal transmission mode, where the configuration information includes at least one of the following: a transmission period of the random access signal, a time domain location of the random access signal, and a frequency domain location and a random access sequence; using system messages or higher layer signaling to notify the UE of configuration information of each type of random access signal transmission mode.
  • each type of random access signal transmission mode configured by the UE on the network side is different, and each type of random access signal transmission mode configured by the network side for the UE can enable the UE After the configuration is known, the corresponding resource is found and based on the resource to the network side. Transmit random access signals.
  • each type of transmission mode configured by the network side for the UE includes a specific transmission period of the random access signal, a time domain location of the random access signal, a frequency domain location, and a random access sequence, and the difference of different types of transmission modes.
  • the method may include different time domain locations, different sequence lengths, and the like; or different types of random access signal transmission modes refer to different random access signal transmission time domain lengths and/or corresponding sequences, and random access signal transmission modes.
  • the other information is the same, for example, the frequency domain location, the transmission period, and the like, and the configuration information of the random access signal transmission mode further includes time domain location information of the periodic random access signal transmission.
  • the network side may also configure a default transmission mode for the UE according to the determined multiple types of transmission modes, and notify the UE by using system messages or high layer signaling. That is, if the network side does not carry the specific indication information in the downlink control information, the UE transmits the random access signal to the network side by using the default random access signal transmission mode configured on the network side.
  • the time domain length of the random access signal in each type of random access signal transmission mode, is different, the time domain length includes a standard time domain length, and at least one of the following time domain lengths: a shortened length The length of the time domain and the length of the time domain of the increased length.
  • FIG. 2a it is a schematic diagram of a random access signal of a standard time domain length and a shortened length time domain length configured on the network side, and the network side base station configures a standard length random access for the UE in consideration of its coverage.
  • a signal such as a random access signal with a time domain length of 1 subframe; and at the same time, configuring at least one random access signal with a shorter length than a standard length for the UE; wherein the network side can also specify a certain length (such as a standard length)
  • the random access signal is the default configuration.
  • FIG. 2b it is a schematic diagram of a random access signal of a standard time domain length and a length of a time domain length configured on the network side, and the network side base station configures a standard length random access signal according to the coverage thereof.
  • the UE is configured with at least one random access signal of a length longer than the standard length, and the network side can also specify a certain length (for example, The standard length) random access signal is the default configuration.
  • the network side may determine random times with different time domain lengths in any of the following manners. Access signal.
  • Manner 1 The random access signals of different time domain lengths are implemented by different frequency domain subcarrier sizes.
  • FIG. 3a it is a schematic flowchart of determining a random access signal with different time domain lengths according to mode 1, and may include the following steps:
  • S311 Determine a first ratio of a frequency domain resource interval occupied by the random access signal of the standard time domain length and a frequency domain resource interval occupied by the random access signal of the time domain length of the shortened/increase length.
  • the frequency domain subcarrier spacing corresponding to the random access signal of the standard time domain length is k1
  • the frequency domain subcarrier spacing corresponding to the shortened length random access signal is k2, where k2>k1, and k2/k1
  • the value is the same as the time domain length ratio occupied by the standard time domain length and the shortened length random access signal, thereby determining the time domain length occupied by the shortened length random access signal.
  • the frequency domain subcarrier spacing occupied by the random access signal of the normal length is k1
  • the frequency domain subcarrier spacing occupied by the increasing length random access signal is k3 as an example, k3 ⁇ k1
  • the value of k3/k1 is The ratio of the time domain length occupied by the random access signal of the normal length and the increased length is the same, and thus, the time domain length occupied by the random access signal of the increased length can be determined.
  • FIG. 3b it is a schematic flowchart of determining a random access signal with different time domain lengths according to mode 2, which may include the following steps:
  • the frequency domain subcarrier spacing occupied by the random access signal of the normal length is k1
  • the frequency domain subcarrier spacing occupied by the shortened length random access signal length is k2, where k2>k1 and the value of k2/k1
  • the ratio of the time domain length occupied by the random access signal of the standard time domain length and the shortened length is the same, thereby determining the time domain length occupied by the shortened length random access signal, and increasing the length of the random signal by the above standard length It is formed by splicing the time domain length occupied by the shortened length random signal.
  • a method for configuring a random access signal may include the following steps:
  • the base station first determines configuration information of each type of random access signal transmission mode configured for the UE, where the configuration information includes at least one of the following: a transmission period of the random access signal, The time domain location and frequency domain location of the random access signal and the random access sequence.
  • the system message or the high layer signaling is used to notify the UE of multiple types of random access signal transmission modes configured by the UE.
  • the network side may also select a type of random access signal transmission mode from the multiple types of random access signal transmission modes configured for the UE as a default random access signal transmission mode; and use system messages or high layer signaling notifications.
  • the network side can use the dynamic downlink control information to indicate which type of transmission mode the UE specifically uses to transmit the random access signal. .
  • the random access signal configuration method provided by the embodiment of the present invention may further include Next steps:
  • the downlink control information carries indication information, which is selected from a pre-configured multi-type random access signal transmission manner, and is used to indicate that the UE transmits a random access signal transmission manner.
  • step S43 Before performing step S43, the following steps may also be included:
  • Step 1 Determine configuration information of the downlink control information detection window.
  • the configuration information of the downlink control information detection window includes a detection period of the downlink control information, time domain offset information within the detection period, and detection window length information.
  • Step 2 Notifying the configuration information of the downlink control information detection window determined by the UE by using a system message or a high layer signaling.
  • Steps 1 and 2 may be performed before step S41 and step S42, and may be performed after step S41 and step S42. Or the steps 1 and 2 can be performed at the same time in the step S41 and the step S42.
  • the downlink control information may further carry a transmission manner for indicating a random access signal of the time domain length used by the UE, for example, to inform the UE whether the random access signal of the standard time domain length is transmitted, or the random access of the shortened length
  • the signal is also a random access signal of increased length.
  • the network side may further indicate, by using dynamic downlink control information, whether the time domain location of the pre-configured transmission random access signal of the UE changes, for example, if the time domain location of the random access signal is not changed, Then, the bit corresponding to the indication information is set to zero. If the time domain position of the transmission random access signal changes, the bit corresponding to the indication information is set to 1.
  • the network side may also indicate the changed time domain location by using the downlink control information.
  • an indication manner that the network side indicates the changed time domain location in the downlink control information is an offset of the time domain transmission location of the changed random access signal relative to the pre-configured time domain location, the offset value
  • the OFDM (Orthogonal Frequency Division Multiplexing) symbol may be used in units of subframes, or may be indicated by a subframe number in a radio frame.
  • the time domain location of the transmitted random access signal changes, including the following two situations:
  • the pre-configured time domain location cannot transmit the random access signal, and only the random access signal can be transmitted in the subsequent one subframe or multiple subframes;
  • the second case a part of the symbols in the pre-configured time domain location can be used for transmission, or this part of the symbol and one or more subsequent subframes can also be used to transmit the random access signal.
  • the downlink control information may further carry indication information that the UE may select a suitable random access signal transmission manner to send the random access signal according to the link quality condition.
  • the random access signal may be sent, and subsequent additional time domain resource transmission is performed.
  • Random access signal and the UE determines, according to the indication information carried in the downlink control information, that the network side allows the UE to select a suitable random access signal transmission manner according to the link quality condition to send the random access signal, and the UE may perform downlink measurement according to the downlink measurement signal.
  • the obtained link quality is selected as follows: 1) the random access signal is sent only in the uplink subframe configured by the system side or the high layer signaling on the network side, 2) or only in the subsequent at least one subframe indicated in the downlink control information.
  • the random access signal 3) or the uplink subframe configured by the high-layer signaling on the network side and the subframe that is dynamically indicated by the downlink control information on the network side simultaneously transmit the random access signal.
  • At least one piece of indication information may be carried in the downlink control information sent by the network side: indication information indicating a time domain length occupied by the random access signal; The indication information of whether the first time domain transmission location is changed; the indication information used to indicate whether the UE can select a random access signal transmission mode according to the measured channel quality.
  • the changed time domain transmission location includes a part of the time domain resource and/or a new time domain resource available in the pre-configured time domain transmission location.
  • the indication information used to indicate the changed time domain transmission location is location offset information of the changed time domain transmission resource relative to the pre-configured time domain transmission resource or the time domain transmission used to indicate the change
  • the indication information of the location is a subframe identifier in a radio frame occupied by the changed time domain transmission resource.
  • FIG. 5 it is a schematic diagram of a random access signal configuration according to an embodiment of the present invention.
  • the network side may also configure a downlink control information detection window for the UE, and notify the UE of the time domain detection window of the downlink control information detection by using system information or high layer signaling. To prevent the UE from always detecting the common control information of the downlink subframe. Based on this, the network side may further determine configuration information of the downlink control information detection window, where the configuration information of the downlink control information detection window includes a detection period of the downlink control information, a time domain offset information within the detection period, and a detection window length. The information of the downlink control information detection window determined by the UE is notified by using the system message or the high layer signaling.
  • the network side can configure multiple types of random access signal transmission modes for the UE by using system messages in the form of broadcast or high-layer signaling, and the dynamic downlink control information of the physical layer is used as the UE. Indicating one of the plurality of types of random access signal transmission modes for transmission. In particular, if the UE does not detect the downlink control information, the UE performs the transmission of the random access signal by using the default random access signal transmission mode configured in the system message or the high layer signaling.
  • FIG. 6 is a schematic flowchart of an implementation process of a method for configuring a random access signal implemented by a UE according to an embodiment of the present invention, which may include the following steps:
  • S61 Receive multiple types of random access signal transmission modes notified by the network side by using system messages or high layer signaling.
  • the method for configuring a random access signal on the UE side may further include:
  • the default random access signal transmission mode is selected from multiple types of random access signal transmission modes configured on the network side.
  • the method for configuring a random access signal on the UE side may further include:
  • S63 Receive downlink control information sent by the network side.
  • the downlink control information carries indication information that is selected by the network side to indicate a transmission mode of the random access signal from the pre-configured multi-type random access signal transmission mode.
  • the UE performs random access signal transmission according to the random access signal transmission manner indicated in the downlink control information.
  • the method for configuring a random access signal that is implemented by the UE may further include: before receiving the downlink control information,
  • the configuration information of the downlink control information detection window includes at least one of the following: a detection period of the downlink control information, time domain offset information within the detection period, and detection window length information.
  • the method After receiving the downlink control information sent by the network side, the method further includes: detecting, according to the configuration information of the downlink control information detection window sent by the network side, the downlink control information.
  • the UE reads the system message or the high layer signaling, and detects the indication information related to the random access signal transmission configuration included in the dynamic downlink control information according to the time domain detection window detected by the dynamic downlink control information configured by the network side.
  • the downlink control information that can be sent by the network side also carries the time domain location information of the periodic random access signal transmission.
  • the UE side may send a random access signal to the network side according to the process shown in FIG. 7, including:
  • the downlink control information further includes at least one of the following indication information: indication information indicating a time domain length occupied by the random access signal; and indicating whether the pre-configured time domain transmission location is changed.
  • the indication information is used to indicate whether the UE can select indication information of a random access signal transmission manner according to the channel quality measured by the UE.
  • the downlink control information carries the indication information for indicating the pre-configured time domain transmission location change
  • the downlink control information further carries indication information for indicating the changed time domain transmission location.
  • the changed time domain transmission location includes a part of the time domain resource and/or a new time domain resource available in the pre-configured time domain transmission location; and if it is determined according to the downlink control information, the random connection can be selected according to the measured channel quality.
  • the method may also be implemented as follows: according to the measured channel quality and the determined random access signal transmission mode, the partial time domain resource corresponding position available in the pre-configured time domain transmission location And/or sending a random access signal to the network side corresponding to the location of the new time domain resource.
  • the transmission mode of the random access signal is determined according to the foregoing two types of information, including:
  • the network side determines that the network side can send a random access signal in a time domain location of the system message or the high layer signaling configuration, and subsequently does not have an additional time domain resource to send the random access signal, then the network The transmission mode indicated by the network side sends a random access signal;
  • the UE determines that the random access signal can be sent in the time domain location configured by the system side or the high layer signaling on the network side, and then the additional time domain resource sends the random access signal, and/or the UE detects according to the downlink control information.
  • the corresponding indication determines that it can select a suitable random access signal transmission mode to send a random access signal according to the measured link quality condition, and the UE can select the link quality according to the downlink measurement: 1) pass only on the network side
  • the time domain resource configured by the system message or the high layer signaling for example, may be an uplink subframe
  • 2) or only the subsequent time domain resource indicated in the downlink control information for example, may be one or more
  • the random access signal is sent on the subframes, 3) or the time domain resources configured by the system message or the high layer signaling on the network side and the time domain resources dynamically indicated in the downlink control information are simultaneously sent.
  • the UE determines that the random access signal cannot be sent on the uplink subframe configured by the system message or the high layer signaling on the network side according to the indication information carried in the downlink control information, and the subsequent uplink subframe resource sends the random access signal, And the UE determines, according to the indication information carried in the downlink control information, that the appropriate random access signal transmission mode can be selected according to the link quality, and the terminal can select the link quality according to the downlink measurement: 1) The network side sends the subsequent uplink subframes that are dynamically indicated by the downlink control information, 2) transmits the uplink subframes that are dynamically indicated by the downlink control information on the network side, and 3) dynamically indicates the downlink control information on the network side. The subsequent partial uplink subframe and the entire uplink subframe are simultaneously transmitted.
  • the random access signal is sent according to the default random access signal transmission mode configured on the network side.
  • the network side may pre-configure a plurality of types of random access signal transmission modes for the UE by using system messages or high-layer signaling, and indicate, by using downlink control information, a type of access signal transmission of the UE.
  • the mode is used for the transmission mode of the random access signal. Therefore, the network side can flexibly adjust the transmission mode of the random access signal according to the real-time interference situation.
  • the flexibility of random access signal transmission is improved, and the problem that the random access signal fails to be transmitted in the presence of interference due to the fixed transmission mode of the random access signal can be avoided, thereby improving the success rate of random access signal access and reducing
  • the UE attempts the number of accesses, which reduces the access delay.
  • the embodiment of the present invention further provides a random access signal configuration system, and a random access signal configuration device implemented on the network side and the UE side, because the above device and system solve the problem and the random access
  • the signal configuration method is similar, so the implementation of the above devices and systems can be referred to the implementation of the method, and the repeated description is not repeated.
  • FIG. 8 it is a schematic structural diagram of a device for configuring a random access signal applied to a network side according to an embodiment of the present invention, which may include:
  • the configuration unit 81 is configured to configure multiple types of random access signal transmission modes for the UE.
  • the first notification unit 82 is configured to notify the UE of multiple types of random access signal transmission modes configured by using the system message or the high layer signaling.
  • the configuration unit is further configured to select a type of random access signal transmission mode from a plurality of types of random access signal transmission modes configured for the UE as a default random access signal transmission mode;
  • the first notification unit is further configured to notify the UE of the default random access signal transmission mode configured by the UE by using a system message or a high layer signaling.
  • the device may further include:
  • the sending unit is configured to send downlink control information to the UE.
  • the downlink control information carries indication information that is used to indicate that the UE transmits a random access signal transmission mode, which is selected from a pre-configured multi-type random access signal transmission manner.
  • At least one configuration information of each type of random access signal transmission manner is different, and the configuration information includes at least one of the following: a transmission period of the random access signal, and a time domain location of the random access signal. And frequency domain location and random access sequence.
  • a random access signal in each type of random access signal transmission mode, includes a standard time domain length, and at least one of the following time domain lengths: a shortened length time domain length and an increased length time domain length.
  • the device may further include:
  • a first determining unit configured to determine a first ratio of a frequency domain resource interval occupied by the random access signal of the standard time domain length and a frequency domain resource interval occupied by the random access signal of the time domain length of the shortened/increase length;
  • a second determining unit configured to determine, according to a first time domain length occupied by the random access signal of the standard time domain length and the first ratio, to determine a second time domain occupied by the random access signal of the time domain length of the shortened/increase length length.
  • the device may further include:
  • a third determining unit configured to determine a second ratio of a frequency domain resource interval occupied by the random access signal of the standard time domain length and a frequency domain resource interval occupied by the random access signal of the shortened length time domain length;
  • a fourth determining unit configured to determine, according to a third time domain length occupied by the random access signal of the standard time domain length and the second ratio, a fourth time domain length occupied by the random access signal of the shortened length time domain length;
  • a fifth determining unit configured to determine that the time domain length occupied by the random access signal of the increased length of the time domain is the sum of the third time domain length and the fourth time domain length.
  • the device may further include:
  • the sixth determining unit is configured to determine configuration information of the downlink control information detection window before the sending unit sends the downlink control information to the UE.
  • the configuration information of the downlink control information detection window includes at least one of the following: a detection period of the downlink control information, time domain offset information within the detection period, and detection window length information;
  • a second notification unit configured to notify the UE to determine by using a system message or a high layer signaling
  • the downlink control information detects configuration information of the window.
  • the downlink control information further includes at least one of the following indication information: indication information indicating a time domain length occupied by the random access signal; and indicating whether the pre-configured time domain transmission location is changed.
  • the indication information is used to indicate whether the UE can select indication information of a random access signal transmission manner according to the channel quality measured by the UE.
  • the downlink control information carries the indication information for indicating the pre-configured time domain transmission location change
  • the downlink control information further carries indication information for indicating the changed time domain transmission location.
  • the changed time domain transmission location includes a portion of the time domain resource and/or a new time domain resource available in the pre-configured time domain transmission location.
  • the indication information for indicating the changed time domain transmission location is location offset information of the changed time domain transmission resource relative to the pre-configured time domain transmission resource or the time domain for indicating the change.
  • the indication information of the transmission location is a subframe identifier in a radio frame occupied by the changed time domain transmission resource.
  • the above parts are respectively divided into modules (or units) according to functions.
  • the functions of the various modules (or units) may be implemented in one or more software or hardware in the practice of the invention.
  • the random access signal configuration apparatus shown in FIG. 8 may be disposed in a base station.
  • a schematic structural diagram of a device for configuring a random access signal applied to a UE side may include:
  • the first receiving unit 91 is configured to receive a plurality of types of random access signal transmission manners that are notified by the network side by using system messages or higher layer signaling.
  • the device may further include:
  • the second receiving unit 92 is configured to receive a default random access signal transmission manner that is notified by the network side by using a system message or a high layer signaling, where the default random access signal transmission mode is configured from the network side. Selectively obtained in the class of random access signal transmission methods.
  • the device may further include:
  • the third receiving unit is configured to receive the downlink control information that is sent by the network side, where the downlink control information is selected by the network side to be selected from the configured multiple types of random access signal transmission manners, and is used to indicate the transmission random access. Indicates the signal transmission method.
  • the device may further include:
  • the fourth receiving unit is configured to receive configuration information of the downlink control information detection window that is notified by the network side by using the system message or the high layer signaling before the third receiving unit receives the downlink control information.
  • the configuration information of the downlink control information detection window includes at least one of the following: a detection period of the downlink control information, time domain offset information within the detection period, and detection window length information;
  • the detecting unit is configured to detect, after the third receiving unit receives the downlink control information sent by the network side, the downlink control information according to the configuration information of the downlink control information detection window sent by the network side.
  • the downlink control information also carries the time domain location information of the periodic random access signal transmission; and the apparatus may further include:
  • a determining unit configured to determine, according to the indication information used to indicate a transmission mode of the transmission random access signal, a transmission mode of transmitting the random access signal
  • the first sending unit is configured to send a random access signal to the network side in the time domain transmission position carried in the downlink control information according to the determined random access signal transmission manner.
  • the downlink control information further includes at least one of the following indication information: indication information indicating a time domain length occupied by the random access signal; and indicating whether the pre-configured time domain transmission location is changed.
  • the indication information is used to indicate whether the UE can select indication information of a random access signal transmission manner according to the channel quality measured by the UE.
  • the changed time domain transmission location includes a pre-configured time domain transmission location available Partial time domain resources and/or new time domain resources; and if it is determined according to the downlink control information, a random access signal transmission mode may be selected according to the measured channel quality.
  • the first sending determining unit is configured to determine, according to the measured channel quality and the determined random access signal transmission manner, a partial time domain resource corresponding position and/or a new time available in the pre-configured time domain transmission location.
  • a random access signal is sent to the network side corresponding to the location of the domain resource.
  • the device may further include:
  • the second sending unit is configured to: if the downlink control information is not detected, send the random access signal according to the default random access signal transmission manner configured by the network side.
  • the above parts are respectively divided into modules (or units) according to functions.
  • the functions of the various modules (or units) may be implemented in one or more software or hardware in the practice of the invention.
  • the random access signal configuration apparatus shown in FIG. 9 may be disposed in the UE.
  • the network side may configure a type of random signal transmission mode for the UE, and notify the UE by using a system message or a high layer signaling, where the UE is usually on the network side according to the network side.
  • the configuration sends a random access signal.
  • the transmission mode of the random signal includes at least one of the following: a transmission period of the random access signal, a time domain location of the random access signal, a frequency domain location, and a random access sequence.
  • the network side may change the random signal to indicate the transmission position of the random signal after the UE is changed by using the downlink control information, so as to improve the random signal access success rate and reduce the access delay.
  • the downlink access control information is used to indicate the changed random access signal transmission location of the UE.
  • the method may further include the following steps: determining configuration information of the downlink control information detection window; and using system messages or higher layer signaling. And notifying the configuration information of the downlink control information detection window that is determined by the UE.
  • the configuration information of the downlink control information detection window includes at least one of the following: a detection period of the downlink control information, time domain offset information within the detection period, and detection window length information.
  • the transmission location of the random access signal indicated in the downlink control information includes a time domain location; and the changed time domain location includes a part of the time domain resource available in the pre-configured time domain location and/or Time domain resources.
  • the indication information used to indicate the changed time domain location in the downlink control information is location offset information of the changed time domain transmission resource relative to the pre-configured time domain transmission resource, or the changed time domain transmission resource.
  • the process of the second random access signal configuration method provided by the embodiment of the present invention is as shown in FIG. 11 and may include the following steps:
  • the UE receives a random access signal transmission manner configured by the network side by using a system message or a high layer signaling notification.
  • the method may further include: receiving, by the network side, configuration information of a downlink control information detection window that is notified by using a system message or a high layer signaling; and receiving downlink control sent by the network side.
  • the method further includes the following steps: detecting, according to the configuration information of the downlink control information detection window sent by the network side, obtaining the Line control information.
  • the configuration information of the downlink control information detection window includes at least one of the following: a detection period of the downlink control information, time domain offset information within the detection period, and detection window length information.
  • the UE may further perform a random signal carried in the downlink control indication information according to other information in the transmission random access signal transmission manner configured by the network side.
  • the transmitted transmission location (including the time domain location and/or the frequency domain location) transmits a random access signal to the network side.
  • the downlink control information further includes at least one of the following information: indication information for indicating a changed random signal transmission location; and indicating whether the UE can select a random access signal according to the measured channel quality thereof. Instructions for the transmission method.
  • the changed time domain transmission location includes a part of the time domain resource and/or a new time domain resource available in the pre-configured time domain transmission location; and if it is determined according to the downlink control information, the random connection can be selected according to the measured channel quality.
  • Incoming signal transmission mode is a part of the time domain resource and/or a new time domain resource available in the pre-configured time domain transmission location.
  • the UE may, according to the measured channel quality and the determined random access signal transmission manner, the partial time domain resource corresponding location and/or the newly added time domain resource corresponding location available in the pre-configured time domain transmission location
  • the network side sends a random access signal.
  • the random access signal is transmitted according to the random access signal transmission manner configured by the network side.
  • FIG. 12 it is a schematic structural diagram of a second random signal configuration implemented by a network side according to an embodiment of the present invention, which may include:
  • the configuration unit 121 is configured to configure a type of random access signal transmission mode for the UE, where the random access signal transmission mode includes transmission location information of the random access signal.
  • the first notification unit 122 is configured to notify the UE of the random access signal transmission mode configured by the UE by using a system message or a high layer signaling.
  • the indicating unit 123 is configured to, when the transmission location of the random access signal configured for the UE changes, indicate the changed random access signal transmission location of the UE by using downlink control information.
  • the device may further include:
  • a determining unit configured to determine configuration information of the downlink control information detection window before the indication unit 123 indicates the changed random access signal transmission position of the UE by using downlink control information
  • the second notification unit is configured to notify the configuration information of the downlink control information detection window determined by the UE by using a system message or a high layer signaling.
  • the configuration information of the downlink control information detection window includes at least one of the following: a detection period of the downlink control information, time domain offset information within the detection period, and detection window length information.
  • the transmission location of the random access signal indicated in the downlink control information includes a time domain location; and the changed time domain location includes a part of the time domain resource available in the pre-configured time domain location and/or Time domain resources. More preferably, the indication information used to indicate the changed time domain location in the downlink control information is location offset information of the changed time domain transmission resource relative to the pre-configured time domain transmission resource; or the changed time domain.
  • FIG. 13 is a schematic structural diagram of a second random signal configuration apparatus implemented by a UE side according to an embodiment of the present disclosure, which may include:
  • the first receiving unit 131 is configured to receive a random access signal transmission manner configured by the network side by using a system message or a high layer signaling;
  • the second receiving unit 132 is configured to receive, after the transmission location of the random access signal configured on the network side, the changed random access signal transmission location indicated by the downlink control information on the network side.
  • the device may further include:
  • the third receiving unit is configured to receive configuration information of the downlink control information detection window that is notified by the network side by using a system message or a high layer signaling;
  • the detecting unit is configured to receive downlink control information sent by the network side at the second receiving unit Then, the downlink control information is obtained according to the configuration information of the downlink control information detection window sent by the network side.
  • the configuration information of the downlink control information detection window includes at least one of the following: a detection period of the downlink control information, time domain offset information within the detection period, and detection window length information.
  • the device may further include:
  • the sending unit is configured to: after the second receiving unit receives the downlink control information sent by the network side, according to other information in the transmission random access signal transmission manner configured by the network side (in addition to the transmission location), The transmission location (including the time domain location and/or the frequency domain location) of the random signal transmission carried in the downlink control indication information is sent to the network side to send a random access signal.
  • the downlink control information further carries at least one of the following information: indication information for indicating a changed random signal transmission location; and indicating whether the UE can select according to the measured channel quality
  • the indication information of the random access signal transmission mode includes a part of the time domain resource and/or a new time domain resource available in the pre-configured time domain transmission location; and if it is determined according to the downlink control information, the random connection can be selected according to the measured channel quality.
  • Incoming signal transmission mode is a part of the time domain resource and/or a new time domain resource available in the pre-configured time domain transmission location.
  • the UE may, according to the measured channel quality and the determined random access signal transmission manner, the partial time domain resource corresponding location and/or the newly added time domain resource corresponding location available in the pre-configured time domain transmission location
  • the network side sends a random access signal.
  • the sending unit is further configured to: if the detecting unit does not detect the downlink control information, send the random access signal according to the random access signal transmission manner configured by the network side.
  • FIG. 14 is a schematic structural diagram of a random access signal configuration system according to an embodiment of the present invention, which may include a base station 141 and a UE 142, where the base station is provided with random numbers as shown in FIG. 8 and/or FIG.
  • the access signal configuration device is provided with the random access signal configuration device shown in FIG. 9 and/or FIG.
  • the network side may pre-configure a plurality of types of random access signal transmission modes for the UE by using system messages or high-layer signaling, and indicate, by using downlink control information, a type of access signal transmission of the UE.
  • the mode is used for the transmission mode of the random access signal. Therefore, the network side can flexibly adjust the transmission mode of the random access signal according to the real-time interference situation, improve the flexibility of random access signal transmission, and avoid random access.
  • the problem that the random access signal fails to be transmitted in the presence of interference caused by the fixed signal transmission mode improves the access success rate of the random access signal, reduces the number of times the UE attempts to access, and reduces the access delay.
  • An embodiment of the present invention further provides a base station, including: a first transceiver, a first memory, and a first processor; in an actual application, the first transceiver, the first memory, and the first processor Can be connected via the bus.
  • the step of configuring the random access signal applied to the base station according to the embodiment of the present invention is implemented when the program is executed.
  • the method is configured to: configure multiple types of random access signal transmission modes for the UE; and notify the UE to configure multiple types of random access signal transmissions by using the system message or the high layer signaling. the way.
  • selecting selecting: selecting a random access signal transmission mode from a plurality of types of random access signal transmission modes configured for the UE as a default random access The signal transmission mode; and the system message or the high layer signaling is used to notify the UE of the default random access signal transmission mode configured for the UE.
  • the method is: sending downlink control information to the UE, where the downlink control information carries multiple types of random access signal transmissions configured for the UE.
  • the indication information selected in the manner for instructing the UE to transmit a random access signal transmission manner.
  • the frequency domain resource interval occupied by the random access signal of the standard time domain length and the time domain length of the shortened/increase length are determined.
  • the first ratio of the frequency domain resource interval occupied by the random access signal; determining the length of the time domain length of the shortened/increase length according to the first time domain length occupied by the random access signal of the standard time domain length and the first ratio The second time domain length occupied by the access signal.
  • the first processor executes the program, it is implemented to: determine a frequency domain resource interval occupied by a random access signal of a standard time domain length and a frequency domain occupied by a random access signal of a shortened length time domain length a second ratio of the resource interval; determining a fourth time domain length occupied by the random access signal of the shortened length time domain length according to the third time domain length occupied by the random access signal of the standard time domain length and the second ratio; determining The time domain length occupied by the random access signal of the increased length of the time domain is the sum of the length of the third time domain and the length of the fourth time domain.
  • the configuration information of the downlink control information detection window is determined before the downlink control information is sent to the UE, and the UE is notified by using a system message or a high layer signaling.
  • the configuration information of the downlink control information detection window is output.
  • An embodiment of the present invention further provides a user equipment, including: a second transceiver, a second memory, and a second processor; in an actual application, the second transceiver, the second memory, and the second processing
  • the device can be connected via a bus.
  • the steps of the random access signal configuration method applied to the user equipment according to the embodiment of the present invention are implemented when the program is executed.
  • the method is: receiving, by the network side, a plurality of types of random access signal transmission manners that are notified by using a system message or a high layer signaling.
  • the method is: receiving a default random access signal transmission manner that is notified by the network side by using a system message or a high layer signaling, where the default random connection is performed.
  • the incoming signal transmission mode is selected from multiple types of random access signal transmission modes configured on the network side.
  • the method is: receiving downlink control information sent by a network side, where the downlink control information carries multiple types of random access signal transmissions configured by the network side The indication information selected in the mode for indicating a transmission mode of the transmission random access signal.
  • the configuration information of the downlink control information detection window that is notified by the network side by using a system message or a high layer signaling is received before receiving the downlink control information. And after receiving the downlink control information sent by the network side, the downlink control information is obtained according to the configuration information of the downlink control information detection window sent by the network side.
  • the second processor executes the program, determining, according to the indication information used to indicate a transmission mode of the transmission random access signal, determining a transmission mode of transmitting the random access signal;
  • the random access signal transmission mode transmits a random access signal to the network side in a time domain position of the random signal transmission carried in the downlink control indication information.
  • the random access signal transmission mode can be selected according to the measured channel quality according to the determining in the downlink control information, according to the measured channel quality and determining
  • the random access signal transmission mode is configured to send a random access signal to the network side at a corresponding location of the time domain resource available in the pre-configured time domain transmission location and/or a corresponding location of the newly added time domain resource.
  • the second processor executes the program, if the downlink control information is not detected, the random access signal is sent according to the default random access signal transmission manner configured by the network side.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores a computer program, and the computer program is used to execute a random access signal configuration method applied to the network side according to the embodiment of the invention.
  • the computer program is implemented by the processor: configuring multiple types of random access signal transmission modes for the UE; using system messages or high-level messages The UE is notified of a plurality of types of random access signal transmission modes configured by the UE.
  • the computer program is implemented by the processor: selecting a type of random access signal transmission mode from a plurality of types of random access signal transmission modes configured for the UE as a default random access signal transmission. And using the system message or the high layer signaling to notify the UE of the default random access signal transmission mode configured for the UE.
  • the computer program is implemented by the processor to: send downlink control information to the UE, where the downlink control information carries a plurality of types of random access signal transmission modes configured for the UE. And the indication information used to indicate that the UE transmits a random access signal transmission mode.
  • the frequency domain resource interval occupied by the random access signal of the standard time domain length and the frequency domain occupied by the random access signal of the time domain length of the shortened/increase length are implemented. a first ratio of the resource interval; determining, according to the first time domain length occupied by the random access signal of the standard time domain length and the first ratio, determining a second time domain occupied by the random access signal of the time domain length of the shortened/increase length length.
  • the computer program is implemented by the processor to: determine a frequency domain resource interval occupied by a random access signal of a standard time domain length and a frequency domain resource interval occupied by a random access signal of a shortened length time domain length a second ratio; determining a fourth time domain length occupied by the random access signal of the shortened length time domain length according to the third time domain length occupied by the random access signal of the standard time domain length and the second ratio; determining the increase length
  • the time domain length occupied by the random access signal of the time domain length is the sum of the length of the third time domain and the length of the fourth time domain.
  • the configuration information of the downlink control information detection window is determined before the downlink control information is sent to the UE, and the UE determines the determined by using the system message or the high layer signaling.
  • the downlink control information detects configuration information of the window.
  • An embodiment of the present invention further provides a computer storage medium, where the computer storage medium There is stored a computer program for performing a random access signal configuration method applied to a user equipment according to an embodiment of the present invention. Specifically, when the computer program is executed by the processor, it is implemented: receiving a plurality of types of random access signal transmission manners that are notified by the network side using system messages or higher layer signaling.
  • the method when the computer program is executed by the processor, the method is: receiving a default random access signal transmission manner, where the network side uses a system message or a high layer signaling, where the default random access signal is received.
  • the transmission mode is selected from multiple types of random access signal transmission modes configured on the network side.
  • the computer program is implemented by the processor to: receive downlink control information sent by the network side, where the downlink control information carries the multiple types of random access signal transmission modes configured by the network side.
  • the selected indication information for indicating the transmission mode of the random access signal is transmitted.
  • the configuration information of the downlink control information detection window that is notified by the network side by using the system message or the high layer signaling is received before receiving the downlink control information; After receiving the downlink control information sent by the network side, the downlink control information is obtained according to the configuration information of the downlink control information detection window sent by the network side.
  • the random access signal is sent to the network side in the time domain position of the random signal transmission carried in the downlink control indication information.
  • the random access signal transmission mode can be selected according to the measured channel quality according to the downlink control information, according to the measured channel quality and the determined Random access signal transmission mode, part of the time domain resource corresponding location available in the pre-configured time domain transmission location and/or new time domain resource pair
  • the random access signal should be sent to the network side at the location.
  • the random access signal is sent according to the default random access signal transmission manner configured by the network side.
  • embodiments of the present invention can be provided as a method, apparatus, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. Instructions are provided for implementation The steps of a function specified in a block or blocks of a flow or a flow and/or a block diagram of a flow chart.
  • the network side may pre-configure multiple types of random access signal transmission modes for the UE by using system messages or high-layer signaling, and indicate that the UE access signal transmission mode is used for random access signals by using downlink control information.
  • Transmission mode whereby the network side can flexibly adjust the transmission mode of the random access signal according to the real-time interference situation, improve the flexibility of random access signal transmission, and avoid the existence of the random access signal transmission mode.
  • the problem of random access signal transmission failure during interference increases the success rate of random access signal access, reduces the number of times the UE attempts to access, and reduces the access delay.

Abstract

Les modes de réalisation de la présente invention concernent un procédé, un appareil, un dispositif, un système et un support de stockage de configuration de signal d'accès aléatoire, le procédé consistant à : configurer de multiples modes de transmission de signal d'accès aléatoire pour un équipement utilisateur (UE) ; et utiliser un message système ou une signalisation de haut niveau pour informer l'UE des multiples modes de transmission de signal d'accès aléatoire configurés à cet effet.
PCT/CN2017/097099 2016-08-12 2017-08-11 Procédé, appareil, dispositif, système et support de stockage de configuration de signal d'accès aléatoire WO2018028675A1 (fr)

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