CN111465099B - Uplink access sharing method and equipment - Google Patents
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- 238000004590 computer program Methods 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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Abstract
The application discloses an uplink access sharing method and equipment. An uplink access sharing method is used for the random access sequence of the terminal equipment to belong to a set of first random access sequences; the first random access sequence is generated by at least one root sequence through cyclic shift under the condition of a first step value; the random access sequence for the relay device belongs to a set of second random access sequences; the second random access sequence is generated by cyclic shift of the at least one root sequence under the condition of a second step value; the second step value is greater than the first step value. The uplink access configuration signaling contains an identification for indicating the first step value and/or the second step value. The application also provides equipment for receiving the configuration signaling, and circularly shifting at least one root sequence by using the first step value and the second step value to obtain a first random access sequence and a second random access sequence; a random access sequence for a terminal or relay is determined. The method and the device solve the problem that the terminal and the relay device share the random access resource.
Description
Technical Field
The present disclosure relates to the field of mobile communications technologies, and in particular, to an uplink access sharing method, configuration signaling, and device.
Background
When both a relay device and a terminal device are present in a cell, both need to access the base station. If the same random access resources are configured, the configuration of the random access parameters is limited. For example, due to the high power and capability of the relay device, when the relay device is located outside the radius of the cell of the primary base station, an attempt is required to access to the primary base station, and then the primary base station matches the relay device when configuring random access parameters for the terminal, and GP and CP in the transmitted preamble format are large to meet the access of the relay device, or the number of cyclic shifts is large, so that the number of available cyclic shifts is reduced, which is unreasonable for terminal access within the radius of the cell. However, if the network configures independent random access resources for the relay device and the terminal device, signaling overhead is greatly increased, and sharing of the random access resources is not facilitated, so that access capacity is affected.
Disclosure of Invention
The embodiment of the application provides an uplink access sharing method, configuration signaling and equipment, which solve the problem of sharing random access resources by a terminal and relay equipment.
An uplink access sharing method comprises the following steps: a random access sequence for the terminal device belonging to the set of first random access sequences; the first random access sequence is generated by at least one root sequence through cyclic shift under the condition of a first step value; a random access sequence for the relay device belonging to a set of second random access sequences; the second random access sequence is generated by cyclic shift of the at least one root sequence under the condition of a second step value; the second step value is greater than the first step value.
Preferably, the second step value is a multiple of the first step value.
Preferably, the set of second random access sequences includes part or all of the second random access sequences.
Preferably, the first random access sequence identical to any one of the second random access sequences is excluded from the set of first random access sequences.
Preferably, in any one of the embodiments of the present application, the total number of random sequences included in the first random sequence set and the second random sequence set is 64.
The embodiment of the application also provides an uplink access configuration signaling, which is used for the method of any embodiment of the application, wherein the configuration signaling comprises an identifier for indicating the first step size value and/or the second step size value.
The embodiment of the application also provides a device, which is used for the method of any embodiment of the application, and the device is used for receiving configuration signaling, wherein the configuration signaling comprises an identifier for indicating the second step value; circularly shifting at least one root sequence by using the second step value to obtain the second random access sequence; all or part of the second random access sequences are determined as a set of the second random access sequences.
Preferably, the device is configured to receive configuration signaling, the configuration signaling including an identification for indicating the first step value; circularly shifting the at least one root sequence by using the first step value to obtain the first machine access sequence; excluding the same part as the second random access sequence from all the first random access sequences, and determining the first random access sequence as a set of the first random access sequences.
Further preferably, the device transmits the random access sequence belonging to the set of first random access sequences or the set of second random access sequences.
The embodiment of the application also provides a device for sending the configuration signaling, receiving the random access sequence, and judging whether the random access sequence belongs to the set of the first random access sequence or the set of the second random access sequence.
The above-mentioned at least one technical scheme that this application embodiment adopted can reach following beneficial effect:
the method provided by the patent allows the relay equipment and the terminal equipment to share the same random access resource, and has the advantage of fully utilizing the random access resource.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
fig. 1 is a schematic diagram of a cell including a relay device and a terminal device;
fig. 2 is a flowchart of an embodiment of an uplink access channel sharing method according to the present invention;
fig. 3 is a schematic diagram of a set of random access sequences when the second step size is a multiple of the first step size;
fig. 4 is a schematic diagram of a set of second random access sequences including a portion of the second random access sequences.
Detailed Description
For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a cell including a relay device and a terminal device. In the cell there is both a relay device 61 and a terminal device 62, both of which can access the base station 60. The relay device and the terminal device respectively send random access sequences, and the base station device sends out random access correspondence after identifying.
Random access sequence x u,v The generation formula of (n) is as follows, wherein the base sequence is x u (i)，C v Is a cyclic shift, L RA Is the length of the sequence.
x u,v (n)＝x u ((n+C v )modL RA )
When L RA Length 139, step value N of cyclic shift cs When=10, the number v of cyclic shifts is 139/10, which is rounded to 13, and C v The values of (a) are 0, 10, 20, …,120, and 13 random access sequences are generated by using one root sequence. To generate 64 random access sequences, a total of 5 root sequences are required.
It should be noted that the value of the cyclic shift is related to the cell radius, and it is assumed that there are two terminals, UE1 is at the edge of the cell, UE2 is closer to eNB, UE1Using a cyclic shift value of 0, ue2 using a cyclic shift value of N cs . From the eNB point of view, due to the existence of transmission delay, the cyclic shift value of UE1 is not 0 but other value X, as long as the value X is smaller than Ncs, X and N cs The value of the autocorrelation is 0 so that the eNB will be able to distinguish between UE1 and UE2 during access, which is characteristic of ZC sequences. Therefore, the maximum coverage radius of the cell is limited by the cyclic shift value.
Fig. 2 is a flowchart of an embodiment of an uplink access channel sharing method according to the present invention.
And step 10, sending uplink access configuration signaling, wherein the configuration signaling comprises an identifier for indicating the first step value and/or the second step value. The second step value is greater than the first step value.
When the uplink access configuration signaling is sent to the terminal equipment, the uplink access configuration signaling at least comprises a first step value; and when the uplink access configuration signaling is sent to the relay equipment, at least a second step value is included.
Considering that the access radius of the relay device is larger than that of the terminal device, when the terminal and the relay configure the same resource, two cyclic shift step values N can be defined for the same ZC root sequence cs Small N cs For terminal equipment access, large N cs For relay device access.
The prior art is to obtain the step size of the cyclic shift by means of a higher layer configuration parameter (zerocorerelation). To support different cyclic shift step sizes of the relay and the terminal, two higher-layer configuration parameters are introduced, one is used for the configuration parameter (zerocoreslationzoneconfig_ue) of the terminal, namely the identification of a first step size value, and is used for obtaining a relatively small cyclic shift step size value, and the other is used for the configuration parameter (zerocoreslationzoneconfig_iab) of the relay, namely the identification of a second step size value, and obtaining a relatively large cyclic shift step size value.
The following table, for example, sets the value of the first step value identifier (zerocorerelation zoneconfig_ue) for the terminal device to be in the range of 0 to 10, and correspondingly, the first step value is N of lines 0 to 10 in the table CS A numerical value; second step size value scale for relay deviceThe value of the identification (zeroCorrelation ZoneConfig_IAB) is set to be 11-15, and the second step value is N of 11-15 rows in the table cs A numerical value; thus, the cyclic shift of the terminal equipment is ensured to be smaller, and the cyclic shift of the relay equipment is ensured to be larger.
Table 1, first step value (or second step value) identifies an index table
(the above Table values are by way of example only, and specific parameters are taken from "Table 6.3.3.1-7:N" in 3GPP Standard 38.211 cs for preamble formats withΔf RA ＝15·2 μ kHz whereμ∈{0,1,2,3}”)
And step 20, receiving configuration signaling, and circularly shifting at least one root sequence by using the first step length value or the second step length value to obtain a random access sequence.
The existing mechanism is a higher layer configuration parameter to obtain a root sequence and a step value for generating random access sequences until a total of 64 random access sequences are generated. For example, 13 random access sequences are generated with one root sequence. To generate 64 random access sequences, a total of 5 root sequences are required.
For example, the relay device receives configuration signaling, where the configuration signaling includes an identifier for indicating the second step value; circularly shifting at least one root sequence by using the second step value to obtain the second random access sequence; all or part of the second random access sequences are determined as a set of the second random access sequences.
For another example, the terminal device receives configuration signaling, where the configuration signaling includes an identifier for indicating the first step value; circularly shifting the at least one root sequence by using the first step value to obtain the first machine access sequence; excluding the same part as the second random access sequence from all the first random access sequences, and determining the first random access sequence as a set of the first random access sequences.
A random access sequence for the terminal device belonging to the set of first random access sequences; the random access sequence for the relay device belongs to the set of second random access sequences.
the random access sequence sent by the terminal equipment is the first random access sequence and is generated by at least one root sequence through cyclic shift under the condition of a first step value.
The random access sequence sent by the relay device is the second random access sequence and is generated by cyclic shift of the at least one root sequence under the condition of a second step value.
fig. 3 is a schematic diagram of a set of random access sequences when the second step size is a multiple of the first step size.
As an optimized embodiment of the present invention, the second step value is a multiple of the first step value. Excluding, from the set of first random access sequences, a first random access sequence identical to any one of the set of second random access sequences. The total number of random sequences contained in the first random sequence set and the second random sequence set is 64.
In order to support different cyclic shifts of the relay device and the terminal device, the base station side configures the cyclic shift step length of the relay device to be a multiple N (N is a positive integer) of the cyclic shift of the terminal device according to the coverage range of the covered relay device so as to ensure that the relay device uses the cyclic shift step length which is larger than the N times of the terminal to generate a random access sequence, thereby meeting the requirement of inconsistent coverage ranges of the relay device and the terminal.
It should be noted here that since the random access rate of the relay device is relatively low, a smaller number of random access sequences than the terminal can be generated.
As shown in fig. 3, for the terminal device, when the higher layer configures N cs When=10, 13 cyclic shifts are needed for each ZC sequence to generate a random access sequence, a total of 64 random access sequences are needed for 5 ZC sequences to generate according to the cyclic shifts, and each block in the figure represents one random access sequence;
according to the high-level configuration of the patent, the relay equipment is configured with a step value of 4 times of the size, namely N cs =40 to generate random access sequences, each root sequence generates 3 cyclic shifted random access sequences, and 15 random access sequences for relay devices can be generated. Specific cyclic shift value C v 0, 40, 80. Each block in the figure represents one random access sequence and the grey block represents the set of second random access sequences. In the embodiment shown in fig. 3, the set of second random access sequences comprises all of the second random access sequences.
To avoid collisions, all N times the cyclic shift is used for the relay device, the remaining cyclic shift is used for the terminal. C in the example v =0, 40, and 80 are used for the relay device. Finally, the number of random access sequences for relay is 15, and the number of random access sequences for terminal is 49. That is, the first random sequence is collected by removing the portion overlapping with the gray square (indicated by a dash x) from the entire first random sequence.
Fig. 4 is a schematic diagram of a set of second random access sequences including a portion of the second random access sequences.
Preferably, the set of second random access sequences comprises part of the second random access sequences. Excluding, from the set of first random access sequences, a first random access sequence identical to any one of the set of second random access sequences. The total number of random sequences contained in the first random sequence set and the second random sequence set is 64.
Base station configures its special purpose for terminal and relayTo ensure access sequences specific to terminals and relays, as shown in fig. 4, still taking the higher layer configuration N of the terminal device cs =10, relay device N cs =40. C for terminal to generate random access sequence in second root sequence v C for generating random access sequence in second root sequence by relay=40, 50, …,120 v =0. The terminal generates a cyclic shift value C of the random access sequence in the fourth root sequence v =0, 10, 20, 30, 80, 90, 100, 110, 120; relay generates C of random Access sequence in third root sequence v =40. The terminal generates a cyclic shift value C of the random access sequence in the fifth root sequence v =0, 10, 20, 30, 40, 50, 60, 70, 120; relay generates C of random access sequence in fifth root sequence v =80. Each block in the figure represents one random access sequence, and the gray block represents a set of second random access sequences, which are designated parts (remaining x represents) in all the second random access sequences. The number of random access sequences for relay is 3 in this example. The first random sequences were all removed from the grey square overlapping portions (indicated by x), and a set of first random sequences was obtained, with 61 random access sequences for the terminal.
In the invention, the terminal and the relay equipment share the same sequence, two cyclic shift step values are introduced, and the design principle is that a small step value is used for the terminal equipment and a large step value is used for the relay equipment. The method of indication is three, one is to divide the configurable step value into two types, so that one type of slightly larger step value is used for the relay device, the other type of small step value is used for the terminal device, the other type of small step value is used for indicating the relay device, the step value is a multiple of the step value of the terminal device, and the third type of small step value is used for directly configuring a part of the 64 access sequences generated according to the high step value to the relay device.
The embodiment of the application also provides a device, which is used for the method of any embodiment of the application, and the device is used for receiving configuration signaling, wherein the configuration signaling comprises an identifier for indicating the second step value; circularly shifting at least one root sequence by using the second step value to obtain the second random access sequence; all or part of the second random access sequences are determined as a set of the second random access sequences.
Preferably, the device is configured to receive configuration signaling, the configuration signaling including an identification for indicating the first step value; circularly shifting the at least one root sequence by using the first step value to obtain the first random access sequence; excluding the same part as the second random access sequence from all the first random access sequences, and determining the first random access sequence as a set of the first random access sequences.
Further preferably, the device transmits the random access sequence belonging to the set of first random access sequences or the set of second random access sequences. When the device is set in the terminal device 62, the random access sequence belongs to the set of first random access sequences; when the device is arranged in the relay device 61, the random access sequence belongs to the set of second random access sequences.
The embodiment of the present application further proposes a device, when configured in the base station device 60, configured to send the configuration signaling, receive the random access sequence, and determine that the random access sequence belongs to the set of the first random access sequence or the set of the second random access sequence.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (8)
1. An uplink access sharing method is characterized in that,
a random access sequence for the terminal device belonging to the set of first random access sequences; the first random access sequence is generated by at least one root sequence through cyclic shift under the condition of a first step value;
a random access sequence for the relay device belonging to a set of second random access sequences; the second random access sequence is generated by cyclic shift of the at least one root sequence under the condition of a second step value;
the second step value is larger than the first step value; the first random access sequence is excluded from the set of first random access sequences, and the first random access sequence is identical to any one of the set of second random access sequences.
2. The method of claim 1, wherein,
the second step value is a multiple of the first step value.
3. The method according to claim 1 or 2, wherein,
the set of second random access sequences includes some or all of the second random access sequences.
4. An uplink access sharing device for implementing the method of any one of claims 1 to 3, characterized in that,
receiving configuration signaling, including an identification for indicating the second step value;
circularly shifting the at least one root sequence by using the second step value to obtain the second random access sequence; all or part of the second random access sequences are determined as a set of the second random access sequences.
5. The uplink access sharing device according to claim 4, wherein the uplink access sharing device is provided in a terminal device or a relay device,
transmitting the random access sequence belonging to the set of the first random access sequence or the set of the second random access sequence;
when set in a terminal device, the random access sequence belongs to a set of the first random access sequences; when set in a relay device, the random access sequence belongs to the set of second random access sequences.
6. An uplink access sharing device for implementing the method of any one of claims 1 to 3, characterized in that,
receiving configuration signaling, including an identifier for indicating the first step value;
circularly shifting the at least one root sequence by using the first step value to obtain the first random access sequence; excluding the same part as the set of the second random access sequences from all the first random access sequences, and determining the same part as the set of the first random access sequences.
7. The uplink access sharing device according to claim 6, wherein the uplink access sharing device is provided in a terminal device or a relay device,
transmitting the random access sequence belonging to the set of the first random access sequence or the set of the second random access sequence;
when set in a terminal device, the random access sequence belongs to a set of the first random access sequences; when set in a relay device, the random access sequence belongs to the set of second random access sequences.
8. An uplink access sharing device, provided in a base station device, for implementing the method of any one of claims 1 to 3,
transmitting configuration signaling, wherein the configuration signaling comprises an identifier for indicating the first step value and/or the second step value;
and receiving the random access sequence, and judging whether the random access sequence belongs to the set of the first random access sequence or the set of the second random access sequence.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217793A (en) * | 2008-01-08 | 2008-07-09 | 中兴通讯股份有限公司 | An allocation method of cyclic shift amount randomly accessed to the channel |
| CN104604320A (en) * | 2012-10-31 | 2015-05-06 | 富士通株式会社 | Method and apparatus thereof for random access preamble sequence generation, resource obtaining and random access |
| CN105830521A (en) * | 2014-06-03 | 2016-08-03 | 华为技术有限公司 | Method and device for generating zc sequence of random access channel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160119887A1 (en) * | 2014-10-27 | 2016-04-28 | Freescale Semiconductor, Inc. | Signal processing method for uplink in small cell base station |
-
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217793A (en) * | 2008-01-08 | 2008-07-09 | 中兴通讯股份有限公司 | An allocation method of cyclic shift amount randomly accessed to the channel |
| CN104604320A (en) * | 2012-10-31 | 2015-05-06 | 富士通株式会社 | Method and apparatus thereof for random access preamble sequence generation, resource obtaining and random access |
| CN105830521A (en) * | 2014-06-03 | 2016-08-03 | 华为技术有限公司 | Method and device for generating zc sequence of random access channel |
Non-Patent Citations (3)
| Title |
|---|
| "36523-1_CR4255r1_(Rel-14)_R5-176985 Correct selection of Random access preamble and PRACH resource explicitly signalled to the UE NCT based random access procedure for high speed scenario".《3GPP tsg_ran\TSG_RAN》.2017,全文. * |
| "38211-f20".《3GPP tsg_ran\wg1_rl1》.2018,全文. * |
| R1-073435 "Random Access Preamble L1 Parameters in E-UTRA";Texas Instruments;《3GPP tsg_ran\WG1_RL1》;20070815;全文 * |
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